Fire-fighting ejection device for unmanned aerial vehicle

Abstract

The utility model discloses an unmanned aerial vehicle fire-fighting ejection device, and relates to the technical field of unmanned aerial vehicle fire fighting. The device comprises a base frame used for being installed at the bottom of the unmanned aerial vehicle and at least one bullet loading assembly, each bullet loading assembly is composed of a first side plate and a second side plate and is provided with a positioning part, and the positioning part comprises a first blocking unit connected to the first side plate and the second side plate; the second blocking unit is movably connected to the bottom; the third blocking unit is movably connected to the upper end of the first side plate and is integrated with at least one catapult, and when the third blocking unit is located at a specific position, the output end of the catapult is tightly attached to the top of the fire extinguishing bomb; according to the design, after bomb loading is completed, the problem that the fire extinguishing bomb falls off due to vibration or airflow in the take-off, flight and landing processes of the unmanned aerial vehicle is effectively solved by closing the catapult plate, and meanwhile, through precise operation of the catapult, the bomb dropping accuracy is improved, and the bomb clamping phenomenon is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle fire fighting, in particular to a fire fighting ejection device for an unmanned aerial vehicle. Background Art

[0002] With the rapid development of drone technology, its application is becoming increasingly widespread across various fields, particularly in emergency rescue and firefighting. Traditional firefighting methods are often limited by factors such as terrain and distance, making it difficult to quickly and effectively control fires. Therefore, developing a drone-based firefighting system that can rapidly respond and accurately deliver fire-extinguishing bombs has become a top priority. However, existing fire-extinguishing bomb delivery devices suffer from numerous issues, such as easy detachment during transportation, low delivery accuracy, and frequent jamming, which seriously impact firefighting efficiency and safety. To address this issue, we propose a drone-based firefighting ejection device. Utility Model Content

[0003] The purpose of the utility model is to provide a fire ejection device for a drone to solve the problem of how to prevent fire extinguishing bombs from falling off and ejecting during transportation.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fire ejection device for a drone, comprising a base frame for being mounted on the bottom of the drone, at least one loading assembly being mounted on the base frame, the loading assembly comprising a first side plate and a second side plate, a positioning portion being provided between the first side plate and the second side plate, the positioning portion comprising: a first blocking unit connected to the first side plate and the second side plate for limiting the horizontal movement of the fire extinguishing bomb; a second blocking unit connected to the bottom of the first side plate and the second side plate, the second blocking unit being movable and having a movement position comprising a first position and a second position, when the second blocking unit is in the first position When the second blocking unit is in the second position, an accommodating space is formed between the second blocking unit and the first blocking unit, and when the second blocking unit is in the second position, the bottom of the accommodating space is unobstructed; the third blocking unit is connected to the upper end of the first side plate, the third blocking unit is movable and the moving position includes a third position and a fourth position, when the third blocking unit is in the third position, the top of the accommodating space is blocked, and when the third blocking unit is in the fourth position, the top of the accommodating space is unobstructed; wherein, the third blocking unit includes at least one ejector, and when the third blocking unit is in the third position, the output end of the ejector is in contact with the top of the fire extinguishing bomb.

[0005] As a preferred embodiment of the present invention, the first blocking unit includes a first arcuate bar and a second arcuate bar installed between the first side plate and the second side plate, and the diameter between the first arcuate bar and the second arcuate bar is greater than the diameter of the fire extinguishing bomb.

[0006] As a preferred embodiment of the present invention, the second blocking unit includes a second rotating shaft installed on the first side plate and the second side plate, a third arc bar is connected between the two second rotating shafts, and the first side plate is provided with a driving part for driving the second rotating shaft to rotate.

[0007] As a preferred embodiment of the present invention, the third blocking unit includes a pin seat installed on the upper end of the first side panel, the pin seat is rotatably connected to the ejection plate, the upper end of the second side panel is provided with a locking member for locking the ejection plate, and the ejector is installed on the ejection plate.

[0008] As a preferred embodiment of the present invention, the ejector includes a cylindrical tube mounted on the ejection plate, the ejection plate is provided with a groove, the cylindrical tube is located at the groove on the ejection plate, a sliding cavity is formed between the inner cavity of the cylindrical tube and the groove, a ejection rod is slidably connected to the cylindrical tube, the ejection rod passes through the cylindrical tube, a slide is provided on the ejection rod, the slide is located in the sliding cavity, a spring is sleeved on the ejection rod, the spring is located above the slide, and the two ends of the spring are respectively against the slide and the top of the sliding cavity, and a baffle is provided at the bottom of the sliding cavity.

[0009] As a preferred embodiment of the present invention, the locking member includes a first rotating shaft rotatably connected to the second side panel, a clamping block is connected to the upper end of the first rotating shaft, and a clamping slot is provided on the ejection plate. After the clamping block passes through the clamping slot, the ejection plate is locked by rotating the clamping block.

[0010] As a preferred embodiment of the present invention, four connecting rods are provided at the bottom of the base frame, and the four connecting rods are equidistantly distributed around the circumference. There are four loading assemblies, and the four loading assemblies are connected to the base frame through the four connecting rods.

[0011] As a preferred embodiment of the present invention, a mounting plate is provided on the top of the base frame, the base frame is hollow, and a threading hole is provided on the side surface of the upper end of the base frame.

[0012] Compared with the existing technology, the beneficial effect of the present invention is: the present invention closes the ejection plate after loading is completed, effectively preventing the fire extinguishing bomb from falling off due to vibration or airflow during the take-off, flight and landing of the drone. By installing a catapult on the ejection plate, the bottom of the accommodating space is opened as the second blocking unit, thereby achieving the effect of rapid ejection of the fire extinguishing bomb, improving the accuracy of bomb delivery and avoiding the jamming phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a UAV fire ejection device of the utility model Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the structure of a UAV fire ejection device of the utility model Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the structure of a UAV fire ejection device of the utility model Figure 3 ;

[0016] Figure 4 This is a front view of a UAV fire ejection device according to the utility model;

[0017] Figure 5 This is a top view of a UAV fire ejection device according to the utility model;

[0018] Figure 6 This is a bottom view of a UAV fire ejection device according to the utility model;

[0019] Figure 7 This is a schematic diagram of the structure of a UAV fire ejection device of the utility model Figure 4 ;

[0020] Figure 8 This utility model is a UAV fire ejection device Figure 7 Schematic diagram of the structure of part A;

[0021] Figure 9 This is a schematic diagram of the structure of the bullet loading assembly of a UAV fire ejection device in this utility model. Figure 1 ;

[0022] Figure 10 This is a schematic diagram of the structure of the bullet loading assembly of a UAV fire ejection device in this utility model. Figure 2 ;

[0023] In the figure: 100, base frame; 101, threading hole; 102, mounting plate; 103, connecting rod; 200, loading assembly; 201, first side plate; 202, second side plate; 203, first arc-shaped strip; 204, second arc-shaped strip; 205, pin seat; 206, ejection plate; 207, slot; 208, first rotating shaft; 209, block; 210, driving part; 211, second rotating shaft; 212, third arc-shaped strip; 600, ejector; 601, cylindrical tube; 602, ejection rod; 603, sliding cavity; 604, slide plate; 605, spring; 606, baffle. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the present invention more clear, the following will provide a clear and complete description of the technical solutions of the present invention in conjunction with specific embodiments of the present invention and corresponding drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] It should be understood that the terms "comprises / comprising," "consisting of," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product, apparatus, process, or method that includes a list of elements includes not only those elements but also, if necessary, other elements not explicitly listed, or elements inherent to such product, apparatus, process, or method. In the absence of further limitations, elements defined by the phrases "comprises / comprising," "consisting of," do not preclude the presence of additional identical elements in the product, apparatus, process, or method that includes the elements.

[0026] It should also be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device, component or structure referred to must have a specific direction, be constructed or operate in a specific direction, and should not be understood as limiting the present invention.

[0027] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0028] The technical solutions provided by various embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] See also Figures 1-10The utility model provides an embodiment of a UAV fire ejection device, comprising a base frame 100 for being mounted on the bottom of the UAV, at least one loading assembly 200 being mounted on the base frame 100, the loading assembly 200 comprising a first side plate 201 and a second side plate 202, a positioning portion being provided between the first side plate 201 and the second side plate 202, the positioning portion comprising a first blocking unit connected to the first side plate 201 and the second side plate 202, for limiting the horizontal movement of the fire extinguishing bomb; a second blocking unit connected to the bottom of the first side plate 201 and the second side plate 202, the second blocking unit being movable and having a movement position comprising a first position and a second position, when the second blocking unit is in the first position, the second blocking unit A accommodating space is formed between the blocking unit and the first blocking unit. When the second blocking unit is in the second position, the bottom of the accommodating space is unobstructed. At this time, the fire extinguishing bomb can be dropped from the bottom of the accommodating space to be released; it also includes a third blocking unit connected to the upper end of the first side panel 201. The third blocking unit is movable and the moving position includes a third position and a fourth position. When the third blocking unit is in the third position, the top of the accommodating space is blocked, thereby preventing the fire extinguishing bomb from falling off during the take-off and landing of the drone. On the other hand, when blocked, that is, when the third blocking unit is in the third position, the output end of the catapult 600 is in contact with the top of the fire extinguishing bomb. When the third blocking unit is in the fourth position, the top of the accommodating space is unobstructed, and the unobstructed top makes it easy to load the bomb.

[0030] With this solution, during the loading process, the third blocking unit is in the fourth position, so that the top of the accommodating space is unobstructed, and the second blocking unit is in the first position, forming a complete accommodating space together with the first blocking unit. After the loading is completed, the third blocking unit moves to the third position to block the top of the accommodating space, ensuring that the fire extinguishing bomb will not fall off due to vibration or airflow during the take-off, flight and landing of the drone, thereby ensuring flight safety. When the fire extinguishing bomb needs to be dropped, the second blocking unit moves from the first position to the second position, opening the bottom of the accommodating space, so that the bottom of the fire extinguishing bomb is unobstructed. At the same time, the output end of the catapult 600 is close to the top of the fire extinguishing bomb for ejection, realizing a precise and fast bomb dropping process and avoiding the situation of bullet jamming.

[0031] In one embodiment, the first blocking unit includes a first curved bar 203 and a second curved bar 204 installed between the first side plate 201 and the second side plate 202, and the diameter between the first curved bar 203 and the second curved bar 204 is greater than the diameter of the fire extinguishing bomb.

[0032] In one embodiment, there is a gap between the first curved bar 203 and the second curved bar 204, and the second blocking unit includes a second rotating shaft 211 installed on the first side plate 201 and the second side plate 202, and a third curved bar 212 is connected between the two second rotating shafts 211. The first side plate 201 is provided with a driving part 210 for driving the second rotating shaft 211 to rotate, and the second rotating shaft 211 is rotatably arranged in the gap. The first curved bar 203 and the second curved bar 204 are located above the axis of the second rotating shaft 211, so that when the third curved bar 212 is in the second position, the third curved bar 212 is attached to the bottom of the first curved bar 203 or the second curved bar 204 to avoid motion interference.

[0033] By adopting such a solution, the position and posture of the fire extinguishing bomb during delivery can be ensured by precisely controlling the movement of the third curved bar 212. When delivery is required, the driving unit 210 drives the second rotating shaft 211 to rotate ninety degrees. At this time, the third curved bar 212 is attached to the bottom of the first curved bar 203 or the second curved bar 204, and the bottom of the accommodating space is unobstructed. The fire extinguishing bomb falls rapidly under the action of the ejector 600, completing the delivery process.

[0034] In one embodiment, the third blocking unit includes a pin seat 205 installed at the upper end of the first side plate 201, and an ejection plate 206 is rotatably connected to the pin seat 205. A locking member for locking the ejection plate 206 is provided at the upper end of the second side plate 202, and the ejector 600 is installed on the ejection plate 206.

[0035] With this solution, when the third blocking unit is in the fourth position, the ejection plate 206 is unlocked, the top of the storage space is open, and the operator places the fire extinguisher bomb through the open top. After the fire extinguisher bomb is placed, the third blocking unit moves to the third position, and the ejection plate 206 is locked by the locking member, thereby sealing the top of the storage space. This ensures that the fire extinguisher bomb will not fall out due to vibration or airflow during the drone's takeoff, flight, and landing, and at the same time, it stores energy for the ejector 600. When the fire extinguisher bomb needs to be released, the second blocking unit rotates from the first position to the second position, opening the bottom channel of the storage space. At this time, the ejector 600 is quickly activated, accurately ejecting the fire extinguisher bomb, completing the bombing mission.

[0036] It should be noted that the first position of the second blocking unit mainly plays a blocking effect, and other structures that can achieve blocking can be applied in the present invention, such as a pull-out structure, etc. The third position of the third blocking unit also plays a blocking effect, and other structures can also be used instead. Preferably, a rotary structure is used. The slide mechanism can also achieve the same technical effect, so I will not go into details here.

[0037] In one embodiment, the ejector 600 includes a cylindrical tube 601 mounted on the ejection plate 206, the ejection plate 206 is provided with a groove, the cylindrical tube 601 is located at the groove on the ejection plate 206, a sliding cavity 603 is formed between the inner cavity of the cylindrical tube 601 and the groove, the cylindrical tube 601 is slidably connected to the ejection rod 602, the ejection rod 602 passes through the cylindrical tube 601, the ejection rod 602 is provided with a slide 604, the slide 604 is located in the sliding cavity 603, the ejection rod 602 is sleeved with a spring 605, the spring 605 is located above the slide 604, and the two ends of the spring 605 are respectively against the slide 604 and the top of the sliding cavity 603, and a baffle 606 is provided at the bottom of the sliding cavity 603.

[0038] With this solution, the ejector 600 is powered by the spring 605 in the cylindrical tube 601, and the slide 604 slides in the sliding cavity 603, pushing the fire extinguishing bomb out from the opening at the bottom. During the loading stage, the ejection plate 206 is opened and the slide 604 is at the bottom of the sliding cavity 603. As the ejection plate 206 closes, the lower end of the ejection rod 602 first contacts the fire extinguishing bomb and moves upward, and then the slide 604 slides upward in the sliding cavity 603 to squeeze the spring 605 to complete energy storage.

[0039] Optionally, the locking member includes a first rotating shaft 208 rotatably connected to the second side panel 202, a clamping block 209 is connected to the upper end of the first rotating shaft 208, a clamping slot 207 is provided on the ejection plate 206, and after the clamping block 209 passes through the clamping slot 207, the ejection plate 206 is locked by rotating the clamping block 209.

[0040] Optionally, four connecting rods 103 are provided at the bottom of the base frame 100, and the four connecting rods 103 are equidistantly distributed around the circumference. There are four loading assemblies 200, and the four loading assemblies 200 are connected to the base frame 100 via the four connecting rods 103.

[0041] Optionally, a mounting plate 102 is provided on the top of the base frame 100 , the base frame 100 is hollow, and a threading hole 101 is provided on the side surface of the upper end of the base frame 100 .

[0042] The present invention closes the ejection plate 206 after loading is completed, effectively preventing the fire extinguishing bomb from falling off due to vibration or airflow during the take-off, flight and landing of the drone. By installing the ejector 600 on the ejection plate 206, the second blocking unit opens the bottom of the accommodating space, thereby achieving the effect of rapid ejection of the fire extinguishing bomb, improving the accuracy of bomb delivery and avoiding the jamming of the bomb.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A fire ejection device for a drone, comprising a base frame (100) for mounting on the bottom of the drone, at least one loading assembly (200) being mounted on the base frame (100), characterized in that: The loading assembly (200) comprises a first side plate (201) and a second side plate (202), wherein a positioning portion is provided between the first side plate (201) and the second side plate (202), and the positioning portion comprises: A first blocking unit connected to the first side plate (201) and the second side plate (202) for limiting horizontal movement of the fire extinguishing bomb; a second blocking unit connected to the bottom of the first side plate (201) and the second side plate (202), the second blocking unit being movable and having a moving position including a first position and a second position; when the second blocking unit is in the first position, an accommodating space is formed between the second blocking unit and the first blocking unit; and when the second blocking unit is in the second position, the bottom of the accommodating space is unobstructed; a third blocking unit connected to the upper end of the first side plate (201), the third blocking unit being movable and having a movement position including a third position and a fourth position; when the third blocking unit is in the third position, the top of the accommodating space is blocked; and when the third blocking unit is in the fourth position, the top of the accommodating space is unobstructed; The third blocking unit includes at least one ejector (600), and when the third blocking unit is in the third position, the output end of the ejector (600) is in contact with the top of the fire extinguishing bomb.

2. The UAV fire ejection device according to claim 1, characterized in that: The first blocking unit comprises a first curved bar (203) and a second curved bar (204) installed between the first side plate (201) and the second side plate (202), wherein the diameter between the first curved bar (203) and the second curved bar (204) is greater than the diameter of the fire extinguishing bomb.

3. The UAV firefighting ejection device according to claim 2, characterized in that: The second blocking unit comprises a second rotating shaft (211) mounted on the first side plate (201) and the second side plate (202); a third arc-shaped bar (212) is connected between the two second rotating shafts (211); and a driving portion (210) for driving the second rotating shaft (211) to rotate is provided on the first side plate (201).

4. The UAV firefighting ejection device according to claim 3, characterized in that: The third blocking unit comprises a pin seat (205) mounted on the upper end of the first side plate (201), an ejection plate (206) is rotatably connected to the pin seat (205), a locking member for locking the ejection plate (206) is provided on the upper end of the second side plate (202), and the ejector (600) is mounted on the ejection plate (206).

5. The UAV firefighting ejection device according to claim 4, characterized in that: The ejector (600) includes a cylindrical tube (601) mounted on the ejection plate (206), wherein the ejection plate (206) is provided with a groove, the cylindrical tube (601) is located at the groove on the ejection plate (206), a sliding cavity (603) is formed between the inner cavity of the cylindrical tube (601) and the groove, and a ejection rod (602) is slidably connected to the cylindrical tube (601), and the ejection rod (602) passes through the cylindrical tube (601). 01), a slide plate (604) is provided on the ejection rod (602), the slide plate (604) is located in the slide cavity (603), a spring (605) is sleeved on the ejection rod (602), the spring (605) is located above the slide plate (604), and the two ends of the spring (605) are respectively against the slide plate (604) and the top of the slide cavity (603), and a baffle (606) is provided at the bottom of the slide cavity (603).

6. The UAV firefighting ejection device according to claim 4, characterized in that: The locking member comprises a first rotating shaft (208) rotatably connected to the second side plate (202); a clamping block (209) is connected to the upper end of the first rotating shaft (208); a clamping slot (207) is provided on the ejection plate (206); after the clamping block (209) passes through the clamping slot (207), the ejection plate (206) is locked by rotating the clamping block (209).

7. The UAV fire ejection device according to claim 1, characterized in that: Four connecting rods (103) are provided at the bottom of the base frame (100), and the four connecting rods (103) are equidistantly distributed around the circumference. There are four loading assemblies (200), and the four loading assemblies (200) are connected to the base frame (100) via the four connecting rods (103).

8. The UAV firefighting ejection device according to claim 1, characterized in that: A mounting plate (102) is provided on the top of the base frame (100), the base frame (100) is hollow, and a threading hole (101) is provided on the side surface of the upper end of the base frame (100).

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