Unmanned aerial vehicle fire extinguishing bomb loading mechanism

Abstract

The utility model discloses an unmanned plane fire extinguishing bomb filling mechanism, including two transmission components, a set of filling sliding component and three sets of push bomb component, two transmission components are parallel and interval setting, and filling sliding component sets up between the front end of two transmission components, and two sets of push bomb component are respectively arranged in the side of the front end of two transmission components and away from filling sliding component, and the third set of push bomb component sets up on filling sliding component, transmission component includes transmission support, transmission chain setting on transmission support and two width adjustment plates setting on transmission support and located the width direction both ends of transmission chain, and the interval between two width adjustment plates is adjustable. Its obtained technical progress is: automation collaborative work, and filling efficiency improves greatly, and multiple model bomb body flexible adaptation, and compatibility improves significantly, and heavy load carrying capacity breakthrough, and adapt to the demand of big load unmanned plane, and filling precision guarantee, and reduce the damage risk.

Description

Technical Field

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

[0002] Heavy-load drones are increasingly used in the field of firefighting, especially in complex scenarios such as forest fires and high-rise building fires, where they have shown significant advantages. When performing firefighting missions, they usually need to carry fire extinguishing bombs.

[0003] Traditional methods of loading fire extinguishing bombs mainly rely on manual handling and installation, which is not only labor-intensive and inefficient, but also prone to damage to the outer shell of the fire extinguishing bomb or wear on the drone mounting interface due to human error during operation due to the lack of precise positioning guidance, seriously affecting the service life of the equipment and flight safety.

[0004] Existing fire extinguishing bomb loading equipment on the market is mostly designed for lightweight, small-sized bombs. On the one hand, this type of equipment has limited load-bearing capacity, making it difficult to meet the automated loading requirements of heavy-payload drones for heavy fire extinguishing bombs (such as those weighing hundreds of kilograms). On the other hand, most of these devices are single-function, adapting to a single type (mainly in volume or size) of fire extinguishing bomb. When loading other types (mainly in size), the width of the transport chain limits the placement of the bombs, or even if the bombs can be placed on the chain, they may shift during transport. In addition, existing fire extinguishing bomb loading equipment also suffers from fragmented workflows and poor coordination.

[0005] Therefore, there is an urgent need to develop a loading mechanism specifically designed for heavy-load drones to achieve efficient and reliable rapid deployment of fire extinguishing bombs, thereby comprehensively improving the mission preparation efficiency and combat response capabilities of firefighting drones. Utility Model Content

[0006] Therefore, this utility model provides a drone fire extinguishing bomb loading mechanism to solve one or more of the above-mentioned technical problems.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A drone-mounted fire extinguishing projectile loading mechanism includes two transmission components, one loading sliding component, and three projectile pushing components. The two transmission components are arranged parallel and spaced apart. The loading sliding component is located between the front ends of the two transmission components. The two projectile pushing components are respectively located on the side of the front ends of the two transmission components away from the loading sliding component. The third projectile pushing component is located on the loading sliding component. Each transmission component includes a transmission bracket, a transmission chain mounted on the transmission bracket, and two width adjustment plates mounted on the transmission bracket and located at both ends of the transmission chain in the width direction. The distance between the two width adjustment plates is adjustable.

[0009] Furthermore, an adjustment seat is provided on the side of the transmission bracket. The adjustment seat has a through hole extending along the width direction of the transmission chain. An adjustment pin is inserted through the through hole. One end of the adjustment pin is connected to the width adjustment plate. The top of the adjustment seat has a threaded adjustment hole extending downward and communicating with the through hole. A set screw is screwed into the threaded adjustment hole. The lower end of the set screw abuts against the adjustment pin. The upper end of the set screw protrudes outside the adjustment seat and is fixed with an adjustment cap.

[0010] Furthermore, the width adjustment plate is equipped with a row of bullet detection switches for real-time detection of the position and quantity of fire extinguishing bullets on the transmission chain.

[0011] Furthermore, the filling sliding assembly includes a sliding bracket, a filling base, a lead screw, and a sliding power system. The filling base is slidably disposed on the sliding bracket, and a nut screwed onto the lead screw is disposed at the bottom of the filling base. The lead screw is rotatably mounted on the top inner side of the sliding bracket, and the lead screw is connected to the sliding power system in a transmission manner.

[0012] Furthermore, the pusher assembly includes an electric cylinder, a guide fixing plate, a push plate, and a guide shaft. The electric cylinder is fixed relative to the guide fixing plate. The guide fixing plate has a push rod hole in the middle for the electric push rod of the electric cylinder to pass through. The guide fixing plate has shaft holes at both ends for the guide shaft to pass through. The electric push rod of the electric cylinder passes through the push rod hole and is connected to the push plate. One end of the guide shaft is connected to the push plate, and the other end slides through the shaft hole. A spring presence / absence sensor is provided on the guide fixing plate.

[0013] Furthermore, the transmission chain is a heavy-duty chain with an anti-slip structure on its surface.

[0014] Furthermore, the loading sliding assembly also includes a cable chain, which is disposed between the sliding bracket and the sliding support. One end of the cable chain is fixed to the sliding support, and the other end moves with the loading base.

[0015] Furthermore, a trapezoidal groove is provided on the side of the push plate opposite to the guide fixing plate.

[0016] The present invention has the following advantages:

[0017] 1. Automated collaborative operation significantly improves loading efficiency. This application achieves full automation of the fire extinguishing bomb process from transportation to loading through a collaborative design of "orderly conveying of the transmission component", "synchronous pushing of the dual transmission side bomb pusher component", "precise displacement of the loading sliding component" and "directional loading of the loading side bomb pusher component". The operation process is seamless and uninterrupted, and can be loaded continuously without interruption. Compared with traditional manual loading, the efficiency is increased by more than 3 times, and the labor intensity of manual labor is greatly reduced.

[0018] 2. Flexible adaptation to multiple fire extinguishing projectile models, significantly improving compatibility. Through the adjustable width design of the transmission component, and with the cooperation of the adjustment seat, adjustment pin and set screw, the distance between the two width adjustment plates can be flexibly adjusted according to the size of different fire extinguishing projectile models. This avoids the problem of narrow spacing making it impossible to place large fire extinguishing projectiles, and the precise matching of the spacing prevents small fire extinguishing projectiles from shifting during transmission.

[0019] 3. Breakthrough in heavy-duty load capacity, adapting to the needs of heavy-load drones. The transmission component adopts a heavy-duty chain design, coupled with a stable transmission bracket and sliding bracket structure, which can stably support heavy fire extinguishing bombs weighing hundreds of kilograms. This fully meets the automated loading requirements of heavy fire extinguishing bombs for heavy-load drones, solving the pain point of insufficient load capacity of traditional loading equipment.

[0020] 4. Guaranteed loading accuracy and reduced damage risk. The anti-slip structure on the surface of the transmission chain further prevents offset and shaking during projectile transport and loading. Combined with the guiding function of the width adjustment plate, it further ensures the stable transport and pushing of projectiles of different sizes. The trapezoidal groove of the push plate can conform to the surface of the projectile to form a stable limit. The entire loading process requires no manual intervention, completely eliminating human error caused by manual operation and effectively avoiding damage to the fire extinguishing projectile shell. At the same time, the projectile detection switch on the width adjustment plate can monitor the position and quantity of fire extinguishing projectiles in real time, providing accurate data support for automated collaborative operations.

[0021] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0022] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0023] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0024] Figure 1 A schematic diagram of the structure of a drone fire extinguishing bomb loading mechanism provided for an embodiment of this utility model;

[0025] Figure 2 A schematic diagram of the transmission component of a drone fire extinguishing bomb loading mechanism provided for an embodiment of this utility model;

[0026] Figure 3 for Figure 2 Enlarged view of A in the middle;

[0027] Figure 4 A schematic diagram of the loading and sliding assembly of a drone fire extinguishing bomb loading mechanism provided in this embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the pusher assembly of a drone fire extinguishing bomb loading mechanism provided for an embodiment of the present invention.

[0029] In the diagram: 1. Transmission assembly; 11. Transmission bracket; 12. Transmission chain; 13. Width adjustment plate; 14. Adjustment seat; 15. Adjustment pin; 16. Set screw; 17. Spring detection switch; 18. Transmission power system; 2. Loading sliding assembly; 21. Sliding bracket; 22. Loading base; 23. Lead screw; 24. Sliding power system; 25. Cable chain; 3. Spring pushing assembly; 31. Electric cylinder; 32. Guide fixing plate; 33. Push plate; 34. Guide shaft; 35. Spring presence / absence sensor; 36. Spring pushing bracket; 4. Fire extinguishing grenade. Detailed Implementation

[0030] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] like Figure 1-5 As shown, this embodiment provides a drone fire extinguishing projectile loading mechanism, including two transmission components 1, one loading sliding component 2, and three projectile pushing components 3; the two transmission components 1 are arranged in parallel and spaced apart, the loading sliding component 2 is arranged between the front ends of the two transmission components 1, the two projectile pushing components 3 are respectively arranged on the side of the front end of the two transmission components 1 away from the loading sliding component 2, and the third projectile pushing component 3 is arranged on the loading sliding component 2; the transmission component 1 includes a transmission bracket 11, a transmission chain 12 arranged on the transmission bracket 11, and two width adjustment plates 13 arranged on the transmission bracket 11 and located at both ends of the width direction of the transmission chain 12, the spacing between the two width adjustment plates 13 is adjustable.

[0032] By setting up two parallel and spaced transmission components 1, one set of filling and sliding components 2, and three sets of bomb pushing components 3, a well-defined and collaborative automated loading system is formed, realizing a continuous operation from transmission to loading of fire extinguishing bombs 4, and improving loading efficiency. The two width-adjustable adjustment plates 13 in the transmission component 1 can adjust the spacing according to different sizes of fire extinguishing bombs 4, which not only solves the problem that different models of fire extinguishing bombs 4 are difficult to place on the transmission chain 12, but also avoids the offset of fire extinguishing bombs 4 during transmission, significantly improving the adaptability to different models of fire extinguishing bombs 4, especially meeting the transmission and loading requirements of heavy fire extinguishing bombs 4 required by large-payload UAVs.

[0033] In an optional or preferred embodiment, an adjustment seat 14 is provided on the side of the transmission bracket 11. The adjustment seat 14 is provided with a through hole extending along the width direction of the transmission chain 12. An adjustment pin 15 is inserted through the through hole. One end of the adjustment pin 15 is connected to the width adjustment plate 13. The top of the adjustment seat 14 is provided with a threaded adjustment hole extending downward and communicating with the through hole. A set screw is screwed into the threaded adjustment hole. The lower end of the set screw abuts against the adjustment pin 15. The upper end of the set screw protrudes outside the adjustment seat 14 and is fixed with an adjustment cap.

[0034] Through the cooperative structure of the adjusting seat 14, adjusting pin 15, set screw and adjusting cap, the spacing of the width adjusting plate 13 can be conveniently and accurately adjusted. The operation is simple and the fixation is reliable. It ensures that when adjusting the spacing for different sizes of fire extinguishing bombs 4, the adjustment can be completed quickly and the set spacing can be maintained stably. This further improves the adaptability and adjustment reliability of the transmission component 1 to different models of fire extinguishing bombs 4.

[0035] In an optional or preferred embodiment, the width adjustment plate 13 is provided with a row of bullet detection switches 17 for real-time detection of the position and number of fire extinguishing bullets 4 on the transmission chain 12.

[0036] The fire extinguishing bomb detection switch 17 monitors the position and quantity of the fire extinguishing bomb 4 in real time. When the fire extinguishing bomb 4 reaches the designated loading station (this station is located at the end of the transmission component 1, where there is no width adjustment plate 13, and one set of bomb pushing components 3 can push the fire extinguishing bomb 4 at this station and push the fire extinguishing bomb 4 onto the loading base 22), the transmission chain 12 pauses and waits for the loading action, so as to realize the orderly and accurate delivery of the fire extinguishing bomb 4.

[0037] The bullet detection switch 17 on the width adjustment plate 13 can detect the position and quantity of fire extinguishing bullets 4 on the transmission chain 12 in real time, providing accurate information feedback for the automated loading system. This facilitates the system to coordinate transmission, pushing and loading actions based on the detection results, avoiding operational chaos caused by missing information and improving the automation and reliability of the loading process.

[0038] In an optional or preferred embodiment, the loading sliding assembly 2 includes a sliding bracket 21, a loading base 22, a lead screw 23, and a sliding power system 24. The loading base 22 is slidably mounted on the sliding bracket 21, and a nut screwed onto the lead screw 23 is provided at the bottom of the loading base 22. The lead screw 23 is rotatably mounted on the top inner side of the sliding bracket 21, and the lead screw 23 is connected to the sliding power system 24 in a transmission connection. Exemplarily, the sliding power system 24 includes a motor and a reducer. The output shaft of the motor is connected to the input shaft of the reducer, and a synchronous pulley is provided on the output shaft of the reducer. A synchronous pulley is also provided at one end of the lead screw 23, and the two synchronous pulleys are connected by a synchronous belt.

[0039] The loading sliding assembly 2 uses a lead screw 23 to drive the sliding motion system 24, which makes the sliding of the loading base 22 on the sliding bracket 21 have high precision and high stability. It can accurately control the loading position, ensure that the fire extinguishing bomb 4 is accurately connected to the UAV mounting interface, reduce equipment wear or damage to the fire extinguishing bomb 4 caused by positioning deviation, and improve loading accuracy and safety.

[0040] In an optional or preferred embodiment, the pusher assembly 3 includes an electric cylinder 31, a guide fixing plate 32, a push plate 33, and a guide shaft 34. The electric cylinder 31 is fixed relative to the guide fixing plate 32. The guide fixing plate 32 has a push rod hole in the middle for the electric push rod of the electric cylinder 31 to pass through. The guide fixing plate 32 has shaft holes at both ends for the guide shaft 34 to pass through. The electric push rod of the electric cylinder 31 passes through the push rod hole and connects to the push plate 33. One end of the guide shaft 34 is connected to the push plate 33, and the other end slides through the shaft hole. A spring presence / absence sensor 35 is provided on the guide fixing plate 32. Exemplarily, the electric cylinder 31 and the guide fixing plate 32 of the pusher assembly 3 on the transmission side are fixed on the pusher bracket 36; the electric cylinder 31 and the guide fixing plate 32 of the pusher assembly 3 on the loading side are fixed on the loading base 22.

[0041] In the pusher assembly 3, the electric cylinder 31 provides stable power, and the guide shaft 34 and the guide fixing plate 32 cooperate to ensure that the pusher plate 33 pushes in a precise direction, avoiding the fire extinguishing bomb 4 from deviating during the push process; the bomb presence sensor 35 can detect whether the fire extinguishing bomb 4 to be pushed exists, preventing empty push or accidental push, improving the accuracy and reliability of the pusher action, and ensuring that the fire extinguishing bomb 4 is pushed stably and accurately to the designated position.

[0042] In an optional or preferred embodiment, the transmission chain 12 is a heavy-duty chain with an anti-slip structure on its surface.

[0043] The transmission chain 12 adopts a heavy-duty chain, which improves the load-bearing capacity of the heavy fire extinguishing bomb 4 and meets the transmission requirements of the heavy fire extinguishing bomb 4 by the heavy-load UAV. The anti-slip structure on the surface can increase the friction with the fire extinguishing bomb 4 and prevent the fire extinguishing bomb 4 from sliding or deviating due to vibration or tilting during transmission, thus ensuring a stable and reliable transmission process.

[0044] In an optional or preferred embodiment, the loading sliding assembly 2 further includes a drag chain 25, which is disposed between the sliding bracket 21 and the sliding support 21. One end of the drag chain 25 is fixed to the sliding support 21, and the other end moves with the loading base 22.

[0045] The cable chain 25 can neatly store and protect the cables in the loading sliding assembly 2, preventing the cables from getting tangled, pulled or worn during the movement of the loading base 22, ensuring stable cable connection, ensuring the normal operation of components such as the sliding power system 24, and improving the service life and operational stability of the loading sliding assembly 2.

[0046] In an optional or preferred embodiment, a trapezoidal groove is provided on the side of the push plate 33 facing away from the guide fixing plate 32.

[0047] The trapezoidal groove on the push plate 33 can better fit the surface of the fire extinguishing bomb 4, increasing the contact area and friction during pushing, preventing the fire extinguishing bomb 4 from sliding or deviating relative to the push plate 33 during pushing, making the pushing action more stable and reliable, further improving the pushing accuracy, and reducing the risk of damage to the fire extinguishing bomb 4 due to pushing deviation.

[0048] In an optional or preferred embodiment, the transmission component 1 further includes a transmission power system 18 that provides power to the transmission chain 12.

[0049] The transmission power system 18 provides continuous and stable power to the transmission chain 12, ensuring that the transmission chain 12 can efficiently and orderly transport heavy fire extinguishing bombs 4 (such as those in the hundreds of kilograms class), avoiding transmission jams or stoppages due to insufficient power, and meeting the power requirements of rapid loading of heavy-load UAVs.

[0050] In an optional or preferred embodiment, the pusher assembly 3 is equipped with mechanical limits and sensor feedback to control the pushing stroke. The mechanical limits and sensor interlocking are prior art and will not be described in detail here.

[0051] Mechanical limits provide a physical safety boundary for the push stroke, preventing excessive pushing from damaging the fire extinguishing bomb 4 or the mounting interface; sensor feedback monitors the push position in real time, enabling precise digital control of the push stroke and improving the reliability and safety of heavy-load loading.

[0052] In an optional or preferred embodiment, the transmission component 1, the loading sliding component 2, and the projectile pushing component 3 are controlled by the same PLC controller. The PLC controller controls the start, stop, or forward and reverse rotation of the transmission power system 18, the sliding power system 24, and the electric cylinder 31 based on feedback signals from the projectile detection switch 17, the projectile presence / absence sensor 35, and the push stroke sensor. PLC control is a mature technology in the field of automation and will not be elaborated further. The fire extinguishing projectiles 4 on the two transmission chains 12 are intermittently pushed onto the loading base 22 by the two projectile pushing components 3 on the transmission sides. The loading base 22 slides forward into position, and the projectile pushing components 3 on the loading side push and load the fire extinguishing projectiles 4 onto the drone.

[0053] The PLC controller enables centralized linkage control of various components. Based on real-time feedback signals from the bomb detection switch 17 and the bomb presence / absence sensor 35, it precisely coordinates the timing of actions such as the conveying of the transmission chain 12, the intermittent pushing of the bomb pushers 3 on both sides, the sliding of the loading base 22, and the final loading of the loading side bomb pusher 3. This avoids conflicts or disconnections in the actions of each link, realizing a fully automated closed-loop operation of the "transmission-pushing-shifting-loading" process. The collaborative control ensures a unified rhythm when multiple fire extinguishing bombs 4 are continuously loaded, greatly improving work efficiency. At the same time, the combination of sensor feedback and PLC logic control can automatically identify abnormalities (such as missing bombs or incomplete pushing) and trigger shutdown or adjustment, enhancing the system's fault tolerance and ensuring the stability and intelligence level of the heavy-load loading process.

[0054] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A drone fire extinguishing bomb loading mechanism, characterized in that, It includes two transmission components (1), one set of loading sliding components (2), and three sets of pushing components (3); the two transmission components (1) are arranged in parallel and spaced apart, the loading sliding components (2) are arranged between the front ends of the two transmission components (1), the two sets of pushing components (3) are respectively arranged on the side of the front end of the two transmission components (1) away from the loading sliding components (2), and the third set of pushing components (3) is arranged on the loading sliding components (2); the transmission components (1) include a transmission bracket (11), a transmission chain (12) arranged on the transmission bracket (11), and two width adjustment plates (13) arranged on the transmission bracket (11) and located at both ends of the width direction of the transmission chain (12), the distance between the two width adjustment plates (13) is adjustable.

2. The UAV fire extinguishing bomb loading mechanism as described in claim 1, characterized in that, The side of the transmission bracket (11) is provided with an adjustment seat (14). The adjustment seat (14) is provided with a through hole extending along the width direction of the transmission chain (12). An adjustment pin (15) is inserted into the through hole. One end of the adjustment pin (15) is connected to the width adjustment plate (13). The top of the adjustment seat (14) is provided with a threaded adjustment hole extending downward and communicating with the through hole. A set screw is screwed into the threaded adjustment hole. The lower end of the set screw abuts against the adjustment pin (15). The upper end of the set screw protrudes outside the adjustment seat (14) and is fixed with an adjustment cap.

3. The UAV fire extinguishing bomb loading mechanism as described in claim 1, characterized in that, The width adjustment plate (13) is provided with a row of bullet detection switches (17) for real-time detection of the position and number of fire extinguishing bullets (4) on the transmission chain (12).

4. The UAV fire extinguishing bomb loading mechanism as described in claim 1, characterized in that, The loading sliding assembly (2) includes a sliding bracket (21), a loading base (22), a lead screw (23), and a sliding power system (24). The loading base (22) is slidably disposed on the sliding bracket (21). A nut screwed onto the lead screw (23) is provided at the bottom of the loading base (22). The lead screw (23) is rotatably mounted on the top inner side of the sliding bracket (21). The lead screw (23) is connected to the sliding power system (24) in a transmission connection.

5. The UAV fire extinguishing bomb loading mechanism as described in claim 1, characterized in that, The pusher assembly (3) includes an electric cylinder (31), a guide fixing plate (32), a push plate (33), and a guide shaft (34). The electric cylinder (31) is fixed relative to the guide fixing plate (32). The guide fixing plate (32) has a push rod hole in the middle for the electric push rod of the electric cylinder (31) to pass through. The guide fixing plate (32) has shaft holes at both ends for the guide shaft (34) to pass through. The electric push rod of the electric cylinder (31) passes through the push rod hole and is connected to the push plate (33). One end of the guide shaft (34) is connected to the push plate (33), and the other end slides through the shaft hole. A spring presence / absence sensor (35) is provided on the guide fixing plate (32).

6. The UAV fire extinguishing bomb loading mechanism as described in claim 1, characterized in that, The transmission chain (12) is a heavy-duty chain with an anti-slip structure on its surface.

7. The UAV fire extinguishing bomb loading mechanism as described in claim 4, characterized in that, The loading sliding assembly (2) also includes a drag chain (25), which is disposed between the sliding bracket (21) and the sliding bracket (21). One end of the drag chain (25) is fixed to the sliding bracket (21), and the other end moves with the loading base (22).

8. The UAV fire extinguishing bomb loading mechanism as described in claim 5, characterized in that, The push plate (33) has a trapezoidal groove on the side opposite to the guide fixing plate (32).

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