Flame retardant sprayer carried on unmanned aerial vehicle

Abstract

The utility model provides a flame retardant sprayer carried on an unmanned aerial vehicle, and belongs to the technical field of fireproof devices. Comprising a box body used for storing a flame retardant, a feeding opening is formed in the top of the box body, a sealing cover is arranged at the feeding opening, a stirring roller is rotationally arranged in the box body, a plurality of scraping pieces used for making contact with the inner side wall of the box body are arranged on the stirring roller, a discharging pipe is connected to the bottom of the box body, a plurality of nozzles are arranged at the end, away from the box body, of the discharging pipe, and a pump body is arranged on the discharging pipe. A first driving part for driving the stirring roller to rotate is arranged on the box body. The stirring roller can be driven to rotate through the first driving piece, so that the scraping piece is driven to scrape off the flame retardant attached to the inner side wall of the box body, the flame retardant can be fully used, and the effect of improving the utilization rate of the flame retardant is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire protection devices, and in particular to a flame retardant sprayer carried on an unmanned aerial vehicle. Background Art

[0002] In the hot summer, some mountainous forest areas with lush vegetation are prone to fires due to high temperatures. Therefore, it is necessary to drive vehicles into the forests and spray flame retardants in some areas to prevent fires.

[0003] The terrain of some mountain forests is very complex, and it is difficult for vehicles and other ground transportation to travel. Therefore, the relevant departments will use drones equipped with flame retardant sprayers to spray flame retardants on vegetation during flight. Traditional sprayers include a box, a pump body and a nozzle. The pump body can transport the flame retardant in the box to the nozzle and spray it out through the nozzle. However, during use, some flame retardants are easily attached to the inner wall of the box and cannot be sprayed out, resulting in insufficient use of flame retardants. Utility Model Content

[0004] In view of the above problems, the utility model provides a flame retardant sprayer carried on a drone.

[0005] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is as follows:

[0006] Provided is a flame retardant sprayer carried on an unmanned aerial vehicle, which is used to be installed on a support frame of the unmanned aerial vehicle, comprising a box body for storing flame retardants, a feeding port is provided on the top of the box body, and a sealing cover is provided at the feeding port, a stirring roller is rotatably arranged in the box body, a plurality of scraping pieces for contacting the inner wall of the box body are provided on the stirring roller, a discharge pipe is connected to the bottom of the box body, a plurality of nozzles are provided at one end of the discharge pipe away from the box body, a pump body is provided on the discharge pipe, and a first driving member for driving the stirring roller to rotate is provided on the box body.

[0007] Furthermore, the stirring roller includes a rotating rod, a sleeve and a plurality of stirring rods arranged on the outer wall of the sleeve. The rotating rod is coaxially rotatably arranged in the box body, and the rotating rod is transmission-connected to the first driving member. The cross-section of the rotating rod is rectangular, the sleeve is vertically slidably arranged on the rotating rod, the bottom of the sleeve is an inclined surface, and a limiting rod for contacting the inclined surface is provided on the bottom wall of the box body, and a plurality of scraper blades correspond one by one and are connected to the end of the stirring rod away from the sleeve.

[0008] Furthermore, the first driving member includes a driving motor, which is arranged on the top of the box body, and the output shaft of the driving motor is drivingly connected to the rotating rod.

[0009] Furthermore, a plurality of stirring rods are spirally arranged on the outer wall of the sleeve along the axial direction of the sleeve.

[0010] Further, the nozzle includes a nozzle body which is communicated with the discharge pipe, and a plurality of spray openings for spraying the flame retardant are formed on the outer wall of the nozzle body. A baffle for blocking the spray openings is vertically slidably arranged on the outer wall of the nozzle body, and a second driving member for driving the baffle to move is arranged on the box body.

[0011] Further, the second driving member includes an electric push rod which is arranged on the box body, and the movable end of the electric push rod faces vertically downward and is connected to the baffle.

[0012] The beneficial effects of the present utility model are as follows: during the flight of the drone, the pump body is started to transport the flame retardant in the box body to the nozzle, and then the flame retardant is sprayed through the nozzle. When spraying the flame retardant, the stirring roller can be driven to rotate by the first driving member, so as to drive the scraping blade to scrape off the flame retardant attached to the inner side wall of the box body, so that the flame retardant can be fully used, and the effect of improving the utilization rate of the flame retardant is achieved. Description of the Drawings

[0013] Figure 1 It is an assembly schematic diagram of a flame retardant sprayer carried on a drone in an embodiment of the present application on the drone.

[0014] Figure 2 It is an overall structure schematic diagram of a flame retardant sprayer carried on a drone in an embodiment of the present application.

[0015] Figure 3 It is an internal structure schematic diagram of the box body of a flame retardant sprayer carried on a drone in an embodiment of the present application.

[0016] Figure 4 It is a structure schematic diagram of the stirring roller of a flame retardant sprayer carried on a drone in an embodiment of the present application.

[0017] Wherein, 1. box body; 11. discharge pipe; 2. stirring roller; 21. rotating rod; 22. sleeve; 221. inclined surface; 23. stirring rod; 3. nozzle; 31. nozzle body; 311. spray opening; 4. pump body; 5. first driving member; 6. limiting rod; 7. scraping blade; 8. baffle; 9. second driving member; 10. support frame. Detailed Embodiments

[0018] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0019] An embodiment of the present application discloses a flame retardant sprayer carried on a drone. Refer to Figure 1 、 Figure 2 And Figure 3, including a box body 1 for storing a flame retardant. A feeding port is provided at the top of the box body 1, and a sealing cover is installed at the feeding port. A stirring roller 2 is rotatably arranged in the box body 1, and a plurality of scraping blades 7 for contacting the inner side wall of the box body 1 are installed on the stirring roller 2. A discharge pipe 11 is welded to the bottom of the box body 1, and a plurality of nozzles 3 are installed at one end of the discharge pipe 11 away from the box body 1. A pump body 4 is installed on the discharge pipe 11, and a first driving member 5 for driving the stirring roller 2 to rotate is installed on the box body 1.

[0020] In the embodiment of the present application, the box body 1 can be installed on the support frame 10 of the unmanned aerial vehicle by means of bolt connection. During the flight of the unmanned aerial vehicle, starting the pump body 4 can transport the flame retardant in the box body 1 to the nozzles 3, and then spray the flame retardant through the nozzles 3. When spraying the flame retardant, the stirring roller 2 can be driven to rotate by the first driving member 5, so as to drive the scraping blades 7 to scrape off the flame retardant attached to the inner side wall of the box body 1, so that the flame retardant can be fully used, and the effect of improving the utilization rate of the flame retardant is achieved.

[0021] Refer to Figure 4 , the stirring roller 2 includes a rotating rod 21, a sleeve 22 and a plurality of stirring rods 23 arranged on the outer wall of the sleeve 22. The rotating rod 21 is rotatably arranged coaxially in the box body 1, and the rotating rod 21 is in transmission connection with the first driving member 5. The cross section of the rotating rod 21 is rectangular, the sleeve 22 is vertically slidably arranged on the rotating rod 21, the bottom of the sleeve 22 is an inclined surface 221, and a limiting rod 6 for contacting the inclined surface 221 is welded and fixed on the inner bottom wall of the box body 1. A plurality of scraping blades 7 are correspondingly connected to one end of the stirring rod 23 away from the sleeve 22.

[0022] In the embodiment of the present application, a through hole for the rotating rod 21 to pass through is provided on the sleeve 22. When the first driving member 5 drives the rotating rod 21 to rotate, the sleeve 22 can rotate therewith, and the scraping blade 7 can scrape off the flame retardant on the inner side wall of the box body 1. The sleeve 22 will contact the lower limiting rod 6 under its own gravity. Since the bottom of the sleeve 22 is an inclined surface 221, during the rotation process, the sleeve 22 will also vertically lift under the action of the limiting rod 6, so that the scraping blade 7 can move vertically to scrape the material, further improving the scraping effect of the scraping blade 7.

[0023] Specifically, the first driving member 5 includes a driving motor. The driving motor is installed on the top of the box body 1, and the output shaft of the driving motor is in transmission connection with the rotating rod 21.

[0024] Furthermore, a plurality of stirring rods 23 are spirally welded and fixed on the outer wall of the sleeve 22 along the axial direction of the sleeve 22.

[0025] In the embodiment of the present application, the rotating rod 21 can be driven to rotate by the first driving member 5, so that the stirring rod 23 can spirally transport the flame retardant in the box body 1 to the discharge pipe 11.

[0026] Specifically, the nozzle 3 of the spray head includes a nozzle 31. The nozzle 31 is communicated with the discharge pipe 11, and a plurality of spray openings 311 for spraying the flame retardant are formed on the outer wall of the nozzle 31. A baffle 8 for blocking the spray openings 311 is vertically slidably arranged on the outer wall of the nozzle 31, and a second driving member 9 for driving the baffle 8 to move is installed on the box body 1.

[0027] In the embodiment of the present application, the second driving member 9 can drive the baffle 8 to move to open / close the spray openings 311, and the spraying range of the flame retardant can be increased through the plurality of spray openings 311.

[0028] Specifically, the second driving member 9 includes an electric push rod. The electric push rod is installed on the box body 1, and the movable end of the electric push rod faces vertically downward and is bolted to the baffle 8.

[0029] The implementation principle of a flame retardant sprayer carried on a drone in the embodiment of the present application is as follows: during the flight of the drone, starting the pump body 4 can transport the flame retardant in the box body 1 to the spray head 3, and then the flame retardant is sprayed through the spray head 3. When spraying the flame retardant, the stirring roller 2 can be driven to rotate by the first driving member 5, so as to drive the scraping blade 7 to scrape off the flame retardant attached to the inner side wall of the box body 1, so that the flame retardant can be fully used, and the effect of improving the utilization rate of the flame retardant is achieved.

[0030] Those skilled in the art should understand that although the preferred embodiments of the present invention have been described, once those skilled in the art know the basic creative concept, these embodiments can be further changed and modified. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications falling within the scope of the present invention. Obviously, those skilled in the art can make various changes and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A flame retardant sprayer mounted on an unmanned aerial vehicle, for installation on a support frame (10) of the unmanned aerial vehicle, characterized in that: The invention comprises a box (1) for storing flame retardants, wherein a feeding port is provided at the top of the box (1), and a sealing cover is provided at the feeding port; a stirring roller (2) is rotatably arranged in the box (1), and a plurality of scraping blades (7) are provided on the stirring roller (2) for contacting the inner wall of the box (1); a discharge pipe (11) is connected to the bottom of the box (1); a plurality of nozzles (3) are provided at one end of the discharge pipe (11) away from the box (1); a pump body (4) is provided on the discharge pipe (11); and a first driving member (5) for driving the stirring roller (2) to rotate is provided on the box (1).

2. The flame retardant sprayer mounted on an unmanned aerial vehicle according to claim 1, characterized in that: The stirring roller (2) comprises a rotating rod (21), a sleeve (22) and a plurality of stirring rods (23) arranged on the outer wall of the sleeve (22); the rotating rod (21) is coaxially rotatably arranged in the housing (1), and the rotating rod (21) is transmission-connected to the first driving member (5); the cross-section of the rotating rod (21) is rectangular; the sleeve (22) is vertically slidably arranged on the rotating rod (21); the bottom of the sleeve (22) is an inclined surface (221); a limiting rod (6) for contacting the inclined surface (221) is provided on the inner bottom wall of the housing (1); and the plurality of scraping blades (7) correspond one to one and are connected to the end of the stirring rod (23) away from the sleeve (22).

3. The flame retardant sprayer mounted on an unmanned aerial vehicle according to claim 2, characterized in that: The first driving member (5) comprises a driving motor, which is arranged on the top of the box body (1), and the output shaft of the driving motor is drivingly connected to the rotating rod (21).

4. The flame retardant sprayer mounted on an unmanned aerial vehicle according to claim 2, characterized in that: The plurality of stirring rods (23) are spirally arranged on the outer wall of the sleeve (22) along the axial direction of the sleeve (22).

5. The flame retardant sprayer mounted on an unmanned aerial vehicle according to claim 1, characterized in that: The spray head (3) comprises a nozzle (31), the nozzle (31) is connected to the discharge pipe (11), and a plurality of nozzles (311) for spraying the flame retardant are provided on the outer wall of the nozzle (31), a baffle (8) for blocking the nozzles (311) is vertically slidably provided on the outer wall of the nozzle (31), and a second driving member (9) for driving the baffle (8) to move is provided on the box body (1).

6. The flame retardant sprayer mounted on an unmanned aerial vehicle according to claim 5, characterized in that: The second driving member (9) comprises an electric push rod, which is arranged on the box body (1), and the movable end of the electric push rod is vertically downward and connected to the baffle (8).

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