Spraying device for fire extinguishing unmanned aerial vehicle

Abstract

The utility model relates to the technical field of fire extinguishing unmanned aerial vehicles, in particular to a spraying device for a fire extinguishing unmanned aerial vehicle, which comprises a mounting seat, a spraying mechanism is arranged at the bottom of the mounting seat, a controller is mounted on the front surface of the mounting seat, and a binding post is fixedly connected to the front surface of the mounting seat and close to the controller. Data receiving antennas are fixedly connected to two sides of the mounting seat; the spraying mechanism comprises a buffer seat fixedly connected to the bottom of the mounting seat, a fixing plate is slidably connected to the bottom of the buffer seat, and inner threaded sleeves are fixedly connected to the front face and the back face of the center of the bottom of the fixing plate correspondingly. The problems that after a spraying device of an existing fire extinguishing unmanned aerial vehicle sprays a water column, the sprayed water column can generate acting force in the opposite direction on the spraying device, the posture of the unmanned aerial vehicle is inclined, and the flight safety of the unmanned aerial vehicle is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing, in particular to a spraying device for a fire extinguishing unmanned aerial vehicle (UAV). Background Technique

[0002] The fire extinguishing UAV is a device used for high-rise building fire fighting. However, the existing spraying devices of fire extinguishing UAVs still have deficiencies, specifically: after the existing spraying device of a fire extinguishing UAV sprays out a water column, the ejected water column will generate a reaction force in the opposite direction on the spraying device, resulting in the tilt of the UAV's attitude and affecting the flight safety of the UAV.

[0003] Therefore, a spraying device for a fire extinguishing UAV is needed to solve the problems raised in the above background technique. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a spraying device for a fire extinguishing UAV to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] A spraying device for a fire extinguishing UAV includes a mounting base. A spraying mechanism is arranged at the bottom of the mounting base. A controller is installed on the front of the mounting base. A terminal block is fixedly connected to the front of the mounting base and near the controller. Data receiving antennas are fixedly connected to both sides of the mounting base;

[0007] The spraying mechanism includes a buffer seat fixedly connected to the bottom of the mounting base. A fixing plate is slidably connected to the bottom of the buffer seat. Inner threaded sleeves are fixedly connected to the front and back of the center of the bottom of the fixing plate. A connecting sleeve is threadedly connected inside the inner threaded sleeve. A liquid storage tank is fixedly connected to the bottom of the connecting sleeve. A diversion pipe is fixedly connected to the top of the inner threaded sleeve. A micro delivery pump is fixedly connected to the outer wall of the diversion pipe and inside the fixing plate. A liquid outlet pipe is fixedly connected to the water outlet of the micro delivery pump. The end of the liquid outlet pipe away from the micro delivery pump is fixedly connected to a fire extinguishing nozzle near the lower part of the fixing plate. A piston rod is fixedly connected to the back of the fixing plate and inside the buffer seat. A buffer sleeve is fixedly connected to the inside of the buffer seat and at the corresponding position of the piston rod. A partition plate is fixedly connected above the piston rod inside the buffer sleeve. A diversion hole is opened in the partition plate. A return spring is fixedly connected to the outer wall of the fixing plate and on the side away from the piston rod.

[0008] As a preferred scheme of the utility model, the mounting base is made of aluminum alloy. The connection modes of the terminal block, the data receiving antenna and the controller are all electrical connections. The data receiving antenna is connected to the UAV controller through a wireless data network.

[0009] As a preferred solution of the present utility model, the buffer seat, the fixing plate, the liquid storage tank, the buffer sleeve and the partition are all made of aluminum alloy. The buffer sleeve, the diversion pipe and the liquid outlet pipe are all designed in an L-shaped structure. The reset spring is fixedly connected to the buffer seat. As a preferred solution of the present utility model, the piston rod is made of ABS plastic. Two groups of the internal thread sleeve, the connecting sleeve, the liquid storage tank, the micro transfer pump and the fire extinguishing nozzle are provided. The diversion pipe penetrates through the internal thread sleeve and extends into the liquid storage tank.

[0010] As a preferred solution of the present utility model, the piston rod penetrates through and extends into the buffer sleeve. The connection manners between the piston rod and the buffer sleeve, between the fixing plate and the mounting seat, and between the partition and the piston rod are all sliding connections.

[0011] As a preferred solution of the present utility model, the piston rod is designed in a T-shaped structure. The connection manner between the micro transfer pump and the controller is an electrical connection. The buffer sleeve is filled with hydraulic oil.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, by designing a spraying device for a fire extinguishing unmanned aerial vehicle (UAV), a water column is sprayed by using the spraying mechanism in the device. The mounting seat is fixed at the bottom of the fire extinguishing UAV. The fire extinguishing UAV drives the mounting seat to fly to a designated position and aligns the fire extinguishing nozzle with the flame. The data receiving antenna receives the fire extinguishing instruction from the UAV controller. The controller starts the micro transfer pump. The micro transfer pump sends the clear water in the liquid storage tank into the liquid outlet pipe through the diversion pipe. The clear water in the liquid outlet pipe is sprayed out through the fire extinguishing nozzle. The sprayed water column will push the fixing plate and the piston rod to move backward together. The backward moving piston rod will squeeze the hydraulic oil below the partition into the upper part of the partition through the diversion hole. At the same time, the backward moving piston rod will gradually reduce the flow area of the diversion hole, thereby increasing the throttling effect of the hydraulic oil, enabling the hydraulic oil to generate sufficient oil pressure. The backward moving piston rod and the fixing plate are gradually decelerated and stopped under the blocking of the oil pressure of the hydraulic oil. The fixing plate will not come into contact with the mounting seat. The reaction force generated when the water column is sprayed cannot be transmitted to the fire extinguishing UAV. The flight attitude of the fire extinguishing UAV is relatively stable, solving the problem that after the existing spraying device of the fire extinguishing UAV sprays out the water column, the sprayed water column will generate a reaction force in the opposite direction to the spraying device, resulting in the inclination of the attitude of the UAV and affecting the flight safety of the UAV. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a side sectional view of the fixing plate of the present utility model;

[0016] Figure 3 For the present utility model Figure 2 Enlarged view of part A in the present utility model;

[0017] Figure 4 Schematic diagram of the three-dimensional structure of the fixing plate of the present utility model.

[0018] In the figure: 1, mounting seat; 2, spraying mechanism; 3, controller; 4, terminal; 5, data receiving antenna; 201, buffer seat; 202, fixing plate; 203, internal thread sleeve; 204, connecting sleeve; 205, liquid storage tank; 206, diversion pipe; 207, micro transfer pump; 208, liquid outlet pipe; 209, fire extinguishing nozzle; 210, piston rod; 211, buffer sleeve; 212, partition board; 213, diversion hole; 214, return spring. Specific embodiments

[0019] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] Embodiment, please refer toFigures 1-4 , the present utility model provides a technical solution:

[0024] A spraying device for a fire - extinguishing unmanned aerial vehicle, comprising a mounting base 1, a spraying mechanism 2 is arranged at the bottom of the mounting base 1, a controller 3 is installed on the front surface of the mounting base 1, a terminal block 4 is fixedly connected to the front surface of the mounting base 1 and near the controller 3, and data receiving antennas 5 are fixedly connected to both sides of the mounting base 1;

[0025] Wherein the mounting base 1 is made of aluminum alloy, and the connection modes of the terminal block 4, the data receiving antenna 5 and the controller 3 are all electrical connections. The data receiving antenna 5 is connected to the unmanned aerial vehicle controller through a wireless data network;

[0026] In this embodiment, referring to Figures 2-4 , the spraying mechanism 2 includes a buffer seat 201 fixedly connected to the bottom of the mounting base 1. A fixing plate 202 is slidably connected to the bottom of the buffer seat 201. Inner threaded sleeves 203 are fixedly connected to the front and back of the center of the bottom of the fixing plate 202. A connecting sleeve 204 is threadedly connected to the inside of the inner threaded sleeve 203. A liquid storage tank 205 is fixedly connected to the bottom of the connecting sleeve 204. A diversion pipe 206 is fixedly connected to the top of the inner threaded sleeve 203. A micro - delivery pump 207 is fixedly connected to the outer wall of the diversion pipe 206 and inside the fixing plate 202. A liquid outlet pipe 208 is fixedly connected to the water outlet of the micro - delivery pump 207. One end of the liquid outlet pipe 208 away from the micro - delivery pump 207 is fixedly connected to a fire - extinguishing nozzle 209 near the lower part of the fixing plate 202. A piston rod 210 is fixedly connected to the back of the fixing plate 202 and inside the buffer seat 201. A buffer sleeve 211 is fixedly connected to the inside of the buffer seat 201 at a position corresponding to the piston rod 210. A partition plate 212 is fixedly connected to the inside of the buffer sleeve 211 and above the piston rod 210. A diversion hole 213 is opened in the partition plate 212. A return spring 214 is fixedly connected to the outer wall of the fixing plate 202 on the side away from the piston rod 210;

[0027] Among them, the buffer seat 201, the fixed plate 202, the liquid storage tank 205, the buffer sleeve 211 and the partition plate 212 are all made of aluminum alloy. The buffer sleeve 211, the diversion pipe 206 and the liquid outlet pipe 208 are all designed with an L-shaped structure. The connection mode of the return spring 214 and the buffer seat 201 is a fixed connection. The piston rod 210 is made of ABS plastic. There are two sets of the internal thread sleeve 203, the connection sleeve 204, the liquid storage tank 205, the micro transfer pump 207 and the fire extinguishing nozzle 209. The diversion pipe 206 penetrates through the internal thread sleeve 203 and extends into the liquid storage tank 205. The piston rod 210 penetrates and extends into the buffer sleeve 211. The connection modes of the piston rod 210 and the buffer sleeve 211, the fixed plate 202 and the mounting seat 1, and the partition plate 212 and the piston rod 210 are all sliding connections. The piston rod 210 is designed with a T-shaped structure. The connection mode of the micro transfer pump 207 and the controller 3 is an electrical connection. The fire extinguishing drone drives the mounting seat 1 to fly to a designated position and aligns the fire extinguishing nozzle 209 with the flame. The clear water is sprayed out through the fire extinguishing nozzle 209. The sprayed water column will push the fixed plate 202 and the piston rod 210 to move backward together. The backward moving piston rod 210 will squeeze the hydraulic oil below the partition plate 212 in the buffer sleeve 211 into the upper part of the partition plate 212 through the diversion hole 213. At the same time, the backward moving piston rod 210 will gradually reduce the flow area of the diversion hole 213, thereby increasing the throttling effect of the hydraulic oil and enabling the hydraulic oil to generate sufficient oil pressure. The backward moving piston rod 210 and the fixed plate 202 gradually decelerate and stop moving under the block of the continuously rising hydraulic oil pressure. The fixed plate 202 will not come into contact with the mounting seat 1, and the reaction force generated when the water column is sprayed cannot be transmitted to the fire extinguishing drone, and the flight attitude of the fire extinguishing drone is relatively stable.

[0028] Working process of the utility model: When the spraying device for the fire extinguishing unmanned aerial vehicle designed by this solution is in operation, rotate the liquid storage tank 205, screw out the liquid storage tank 205 and the connecting sleeve 204 from the internal thread sleeve 203, fill the liquid storage tank 205 with clear water, then screw the liquid storage tank 205 and the connecting sleeve 204 back into the internal thread sleeve 203, fix the mounting seat 1 at the bottom of the fire extinguishing unmanned aerial vehicle, connect the terminal 4 to the battery of the fire extinguishing unmanned aerial vehicle with a wire. The fire extinguishing unmanned aerial vehicle drives the mounting seat 1 to fly to the designated position and aligns the fire extinguishing nozzle 209 with the flame. The data receiving antenna 5 receives the fire extinguishing instruction from the unmanned aerial vehicle controller, and the controller 3 starts the micro delivery pump 207. The micro delivery pump 207 sends the clear water in the liquid storage tank 205 into the liquid outlet pipe 208 through the diversion pipe 206. The clear water in the liquid outlet pipe 208 is sprayed out through the fire extinguishing nozzle 209. The sprayed water column will push the fixed plate 202 and the piston rod 210 to move backward together. The backward moving piston rod 210 will squeeze the hydraulic oil located below the partition plate 212 in the buffer sleeve 211 into the upper part of the partition plate 212 through the diversion hole 213. At the same time, the backward moving piston rod 210 will gradually reduce the flow area of the diversion hole 213, thereby increasing the throttling effect of the hydraulic oil, enabling the hydraulic oil to generate sufficient oil pressure. The backward moving piston rod 210 and the fixed plate 202 gradually decelerate and stop moving under the obstruction of the continuously rising oil pressure of the hydraulic oil. The fixed plate 202 will not come into contact with the mounting seat 1, and the reaction force generated when the water column is sprayed cannot be transmitted to the fire extinguishing unmanned aerial vehicle, so the flight attitude of the fire extinguishing unmanned aerial vehicle is relatively stable.

[0029] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An ejection device for a fire - fighting drone, comprising a mounting base (1), characterized in that: A spraying mechanism (2) is provided at the bottom of the mounting base (1), a controller (3) is mounted on the front surface of the mounting base (1), a terminal block (4) is fixedly connected to the front surface of the mounting base (1) near the controller (3), and data receiving antennas (5) are fixedly connected to both sides of the mounting base (1); The spraying mechanism (2) includes a buffer base (201) fixedly connected to the bottom of the mounting base (1), a fixing plate (202) is slidably connected to the bottom of the buffer base (201), inner threaded sleeves (203) are fixedly connected to the front and back of the center of the bottom of the fixing plate (202), a connecting sleeve (204) is threadedly connected inside the inner threaded sleeve (203), a liquid storage tank (205) is fixedly connected to the bottom of the connecting sleeve (204), a diversion pipe (206) is fixedly connected to the top of the inner threaded sleeve (203), a micro delivery pump (207) is fixedly connected to the outer wall of the diversion pipe (206) inside the fixing plate (202), a liquid outlet pipe (208) is fixedly connected to the water outlet of the micro delivery pump (207), a fire extinguishing nozzle (209) is fixedly connected to the end of the liquid outlet pipe (208) away from the micro delivery pump (207) near the lower part of the fixing plate (202), a piston rod (210) is fixedly connected to the back of the fixing plate (202) inside the buffer base (201), a buffer sleeve (211) is fixedly connected to the inside of the buffer base (201) at the corresponding position of the piston rod (210), a partition plate (212) is fixedly connected to the inside of the buffer sleeve (211) above the piston rod (210), a diversion hole (213) is opened in the partition plate (212), and a return spring (214) is fixedly connected to the outer wall of the fixing plate (202) on the side away from the piston rod (210).

2. The spraying device for a fire extinguishing drone according to claim 1, characterized in that: The mounting base (1) is made of aluminum alloy, the connection modes of the terminal block (4), the data receiving antenna (5) and the controller (3) are all electrical connections, and the data receiving antenna (5) is connected to the drone controller through a wireless data network.

3. The jetting device for a fire extinguishing drone according to claim 1, characterized in that: The buffer base (201), the fixing plate (202), the liquid storage tank (205), the buffer sleeve (211) and the partition plate (212) are all made of aluminum alloy, the buffer sleeve (211), the diversion pipe (206) and the liquid outlet pipe (208) are all designed in an L-shaped structure, and the connection mode of the return spring (214) and the buffer base (201) is a fixed connection.

4. The jetting device for a fire extinguishing drone according to claim 1, characterized in that: The piston rod (210) is made of ABS plastic, two groups of the inner threaded sleeve (203), the connecting sleeve (204), the liquid storage tank (205), the micro delivery pump (207) and the fire extinguishing nozzle (209) are provided, and the diversion pipe (206) penetrates through the inner threaded sleeve (203) and extends into the liquid storage tank (205).

5. The jetting device for a fire extinguishing drone according to claim 1, wherein: The piston rod (210) penetrates and extends into the buffer sleeve (211), and the connection modes of the piston rod (210) with the buffer sleeve (211), the fixed plate (202) with the mounting seat (1), and the partition plate (212) with the piston rod (210) are all sliding connections.

6. The jetting device for a fire extinguishing drone according to claim 1, characterized in that: The piston rod (210) is designed with a T-shaped structure. The connection mode of the micro transfer pump (207) with the controller (3) is an electrical connection, and the buffer sleeve (211) is filled with hydraulic oil.

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