Onboard spraying device

Abstract

The airborne spraying device comprises a first pesticide box, a second pesticide box and a communicating pipe which are the same in shape, the first pesticide box and the second pesticide box are symmetrically fixed to the lower portions of the two wings of an airplane respectively and are respectively communicated with a spraying pipe, and the spraying pipes horizontally extend in the length direction of the wings. A plurality of spraying holes are uniformly formed in the spraying pipe in the length direction; two ends of the communicating pipe are respectively communicated with the bottoms of the first pesticide box and the second pesticide box. The problem that the balance performance of the two sides of a machine body is reduced by a spraying device can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of airborne spraying, in particular to an airborne spraying device. Background Art

[0002] At present, airborne spraying equipment mostly serves the firefighting or agricultural fields. It is usually designed with the medicine box installed at the bottom of the two wings of the fuselage, and the spray pipe is directly installed on the medicine box to continuously pump the liquid medicine in the medicine box into the spray pipe for spraying.

[0003] The above arrangement is mainly to ensure the balance of both sides of the fuselage and to enable the spray pipe to extend along the length of the wing to increase the area covered by the spray.

[0004] However, in actual use, due to various reasons, such as uneven distribution of liquid medicine in the two medicine boxes, uneven pumping on both sides, uneven liquid medicine in the spray pipes on both sides, etc., the weight carried by the two wings of the aircraft will be unequal, resulting in a decrease in the balance performance of the aircraft, and in severe cases even affecting the normal flight of the aircraft. Utility Model Content

[0005] The purpose of the utility model is to provide an airborne spraying device, which can solve the problem that the spraying device reduces the balance performance on both sides of the body.

[0006] The utility model is achieved through the following technical solutions:

[0007] An airborne spraying device comprises a first medicine box and a second medicine box of identical shape, wherein the first medicine box and the second medicine box are symmetrically fixed under the two wings of the aircraft, respectively, and the first medicine box and the second medicine box are respectively connected to a spray pipe, wherein the spray pipe extends horizontally along the length direction of the wing, and the spray pipe is uniformly provided with a plurality of spray holes along the length direction; and a connecting pipe, wherein the two ends of the connecting pipe are respectively connected to the bottom of the first medicine box and the bottom of the second medicine box.

[0008] Optionally, the connecting pipe is a straight pipe, which is horizontally arranged, and its two ends are respectively connected to the bottom of the side walls of the first medicine box and the second medicine box, and the inner diameter of the connecting pipe is much larger than the inner diameter of the spray pipe.

[0009] Optionally, a plurality of plug discs are axially slidably arranged in the connecting tube; the inner wall of the connecting tube extends inward to form at least two closed rings; at least one plug disc is arranged between two closed rings; when the plug disc abuts against one of the closed rings, the connecting tube is closed.

[0010] Optionally, the outer diameter of the plug disc is smaller than the inner diameter of the connecting tube; the plug disc is radially connected to a plurality of sliding rods, and the end of the sliding rod away from the plug disc is connected to a slider; the inner wall of the connecting tube is axially provided with a plurality of sliding rails, and the sliders correspond to the sliding rails one by one and are slidably connected.

[0011] Optionally, a screw is coaxially rotated in the connecting pipe, and the plug disc is coaxially screwed to the outside of the screw; an axial flow impeller is coaxially sleeved on the screw, and the outer diameter of the axial flow impeller is slightly smaller than the inner diameter of the connecting pipe.

[0012] Optionally, both sides of the plug disc arranged along the axial direction of the screw are conical surfaces, and the two conical surfaces are symmetrically arranged, and the conical surfaces of the plug disc are elastic surfaces.

[0013] Optionally, the screw is a double-headed screw; there are two plug discs and two pairs of closed rings; the two pairs of closed rings are symmetrically arranged at the two ends of the connecting pipe, and the two plug discs correspond to the two pairs of closed rings respectively, and are arranged between the corresponding two closed rings, and are respectively screwed to the threads at both ends of the screw.

[0014] Optionally, both ends of the screw are coaxially connected to a ring seat, and the ring seat is provided with multiple connecting rods radially outward, and the connecting rods are connected to the inner wall of the connecting tube; a reset torsion spring is provided in the ring seat; when the reset torsion spring is in a natural state, the distance between the plug disc and the corresponding two closed rings is equal.

[0015] Optionally, a positioning spring is axially inserted into the slide rod, and a positioning ball is connected to the outer end of the positioning spring; two positioning grooves are provided at the bottom of the slide rail, and when the positioning ball is pushed into the positioning groove by the positioning spring, the plug disc is sealed and connected with the closed ring.

[0016] Optionally, the spray pipe is connected to the upper part of the first medicine box or the second medicine box through multiple steel cables to form a triangular structure.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] The utility model provides an airborne spraying device, which provides a first medicine box and a second medicine box of the same shape, so that the two are symmetrically arranged under the two wings of the body to ensure the balance of the initial conditions, and provides a spray pipe so that it extends along the length direction of the wing, and evenly opens a plurality of spray holes along the length direction of the spray pipe to effectively increase the spraying area; on this basis, a connecting pipe is provided so that its two ends are connected with the bottom of the first medicine box and the second medicine box respectively, so that the first medicine box and the second medicine box form a connecting vessel structure through the connecting pipe, so that the difference in the amount of liquid medicine in the first medicine box and the second medicine box can be corrected in time at any time to always maintain the balance performance of the two sides of the body; through the mutual cooperation of the above-mentioned features, the airborne spraying device can effectively solve the problem that the spraying device reduces the balance performance of the two sides of the body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0020] Figure 1 A schematic front view of an airborne spraying device provided in an embodiment of the present utility model;

[0021] Figure 2 A half-section schematic diagram of the connecting pipe of the airborne spraying device provided by an embodiment of the utility model;

[0022] Figure 3 A partially enlarged cross-sectional view of the left end of the connecting pipe of the airborne spraying device provided in an embodiment of the present utility model;

[0023] Figure 4 A partial enlarged view of the sealing between the plug disc and the sealing ring of the airborne spraying device provided by an embodiment of the utility model;

[0024] Figure 5 This is a partial enlarged view of the sliding rod of the airborne spraying device provided in an embodiment of the utility model.

[0025] Markings and corresponding parts names in the accompanying drawings:

[0026] 10-first medicine box; 11-second medicine box; 12-spray pipe; 121-spray hole; 13-steel cable; 20-connecting pipe; 201-slide rail; 2011-positioning groove; 21-plug plate; 211-slide rod; 212-positioning spring; 213-positioning ball; 22-sealing ring; 30-screw; 301-ring seat; 302-connecting rod; 31-axial flow impeller. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0028] Example

[0029] Please refer to Figures 1 to 5 This embodiment provides an airborne spraying device, including a first medicine box 10 and a second medicine box 11 of the same shape, the first medicine box 10 and the second medicine box 11 are symmetrically fixed under the two wings of the aircraft, the first medicine box 10 and the second medicine box 11 are respectively connected to a spray pipe 12, the spray pipe 12 extends horizontally along the length direction of the wing, and the spray pipe 12 is evenly provided with a plurality of spray holes 121 along the length direction; the second includes a connecting pipe 20, the two ends of the connecting pipe 20 are respectively connected to the bottom of the first medicine box 10 and the second medicine box 11.

[0030] The airborne spraying device provided in this embodiment provides a first medicine box 10 and a second medicine box 11 of the same shape, so that the two are symmetrically arranged under the two wings of the body to ensure the balance of the initial conditions, and provides a spray pipe 12 to extend along the length direction of the wing, and a plurality of spray holes 121 are evenly opened on the spray pipe 12 along the length direction to effectively increase the spraying area; on this basis, a connecting pipe 20 is provided so that its two ends are connected to the bottom of the first medicine box 10 and the second medicine box 11 respectively, so that the first medicine box 10 and the second medicine box 11 form a connecting vessel structure through the connecting pipe 20, so that the difference in the amount of liquid medicine in the first medicine box 10 and the second medicine box 11 can be corrected in time at any time to always maintain the balance performance of both sides of the body; through the mutual cooperation of the above-mentioned features, the airborne spraying device can effectively solve the problem of the spraying device reducing the balance performance on both sides of the body.

[0031] In order to ensure the efficiency of the adjustment response, the connecting pipe 20 is a straight pipe. The connecting pipe 20 is horizontally arranged, and its two ends are respectively connected to the bottom of the side walls of the first medicine box 10 and the second medicine box 11. The inner diameter of the connecting pipe 20 is much larger than the inner diameter of the spray pipe 12.

[0032] Since the aircraft does not always fly straight during the spraying process, when it turns, a height difference will be generated on both sides of the fuselage, which will cause a height difference between the wings on both sides, and thus cause a height difference between the first medicine box 10 and the second medicine box 11, causing the liquid medicine in the higher medicine box to flow rapidly into the lower medicine box, seriously affecting the balance of both sides of the body. In order to overcome this problem, a number of plug discs 21 are provided in the connecting pipe 20 along the axial sliding; the inner wall of the connecting pipe 20 extends inward to form at least two closed rings 22; at least one of the plug discs 21 is provided between two of the closed rings 22; when the plug disc 21 abuts against one of the closed rings 22, the connecting pipe 20 is closed.

[0033] Through the above arrangement, when a height difference occurs between the first medicine box 10 and the second medicine box 11, the medicine liquid in the connecting pipe 20 flows, thereby driving the plug disc 21 therein to slide along the connecting pipe 20 until the plug disc 21 abuts against the closed ring 22, thereby closing the connecting pipe to prevent the medicine liquid from continuing to flow from high to low; when the body resumes straight flight, the small amount of medicine that has flown into the low-level medicine box will, under the action of the communicating vessel, drive the closed plug disc 21 in the reverse direction away from the closed ring 22, thereby making the connecting pipe 20 connected again.

[0034] In order to further explain the sliding connection structure of the plug disc 21, the outer diameter of the plug disc 21 is smaller than the inner diameter of the connecting tube 20; the plug disc 21 is radially connected to multiple sliding rods 211, and the end of the sliding rod 211 away from the plug disc 21 is connected to a slider; the inner wall of the connecting tube 20 is axially provided with multiple sliding rails 201, and the sliders correspond to the sliding rails 201 one by one and are slidably connected.

[0035] Through the above arrangement, it is ensured that the plug disc 21 only slides in the axial direction and the plug disc 21 will not completely close the connecting pipe 20.

[0036] Since the outer diameter of the plug disc 21 is relatively small, in order to effectively promote the axial movement of the plug disc 21, a screw 30 is coaxially rotated inside the connecting tube 20, and the plug disc 21 is coaxially screwed to the outside of the screw 30; the screw 30 is coaxially sleeved with an axial flow impeller 31, and the outer diameter of the axial flow impeller 31 is slightly smaller than the inner diameter of the connecting tube 20.

[0037] Through the above arrangement, the liquid flow is used to push the axial flow impeller 31, thereby driving the screw 30 to rotate, thereby driving the plug disc 21 to move axially.

[0038] In order to improve the sealing performance of the plug disc 21 and the closed ring 22, both sides of the plug disc 21 arranged along the axial direction of the screw 30 are conical surfaces, and the two conical surfaces are symmetrically arranged. The conical surface of the plug disc 21 is an elastic surface.

[0039] In order to ensure that the response speed of the plug discs 21 at both ends of the connecting pipe 20 is as synchronized as possible, the screw 30 is a double-headed screw; there are two plug discs 21, and there are two pairs of closed rings 22; the two pairs of closed rings 22 are symmetrically arranged at both ends of the connecting pipe 20, and the two plug discs 21 correspond to the two pairs of closed rings 22 respectively, and are arranged between the corresponding two closed rings 22, and are respectively screwed to the threads at both ends of the screw 30.

[0040] In order to further explain the connection method of the screw 30 and realize the automatic reset of the plug disc 21, the two ends of the screw 30 are coaxially connected to the ring seat 301, and the ring seat 301 is provided with multiple connecting rods 302 radially outward, and the connecting rods 302 are connected to the inner wall of the connecting tube 20; a reset torsion spring is provided in the ring seat 301; when the reset torsion spring is in a natural state, the distance between the plug disc 21 and the corresponding two closed rings 22 is equal.

[0041] In order to ensure the durability of the seal of the plug disc 21, a positioning spring 212 is axially passed through the sliding rod 211, and the outer end of the positioning spring 212 is connected to a positioning ball 213; two positioning grooves 2011 are provided at the bottom of the sliding rail 201, and when the positioning ball 213 is pushed into the positioning groove 2011 by the positioning spring 212, the plug disc 21 is sealed and plugged with the closing ring 22.

[0042] Through the above arrangement, due to the presence of the reset torsion spring, when the plug disc 21 is sealed with the closed ring 22, the connecting pipe 20 is throttled and the axial flow impeller 31 loses power, then the reset torsion spring will drive the screw 30 to reset. In order to avoid this situation, the elastic snap connection between the positioning ball 213 and the positioning groove 2011 is used for fixed-point positioning. When the aircraft resumes direct flight, the small amount of liquid medicine flowing into the low-level medicine box will reversely squeeze the closed plug disc 21 under the action of the connecting pipe, and with the help of the reset torsion spring, the positioning ball 213 will be disengaged from the positioning groove 2011, thereby making the plug disc 21 away from the closed ring 22 and reset.

[0043] In order to prevent the spray pipe 12 from being broken due to being too long, the spray pipe 12 is connected to the upper part of the first medicine box 10 or the second medicine box 11 through multiple steel cables 13 to form a triangular structure.

[0044] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. An airborne spraying device, characterized in that: include: A first medicine box (10) and a second medicine box (11) of identical shape, the first medicine box (10) and the second medicine box (11) being symmetrically fixed below two wings of the aircraft, the first medicine box (10) and the second medicine box (11) being respectively connected to a spray pipe (12), the spray pipe (12) extending horizontally along the length direction of the wing, and the spray pipe (12) being uniformly provided with a plurality of spray holes (121) along the length direction; A connecting pipe (20), wherein both ends of the connecting pipe (20) are respectively connected to the bottom of the first medicine box (10) and the bottom of the second medicine box (11).

2. The airborne spraying device according to claim 1, characterized in that: The connecting pipe (20) is a straight pipe. The connecting pipe (20) is arranged horizontally, and its two ends are respectively connected to the bottom of the side walls of the first medicine box (10) and the second medicine box (11). The inner diameter of the connecting pipe (20) is much larger than the inner diameter of the spray pipe (12).

3. The airborne spraying device according to claim 2, characterized in that: A plurality of plug discs (21) are axially slidably provided in the communicating tube (20); The inner wall of the connecting pipe (20) extends inwardly to form at least two closed loops (22); At least one of the plug discs (21) is disposed between the two closed rings (22); When the plug disc (21) abuts against one of the closing rings (22), the connecting pipe (20) is closed.

4. The airborne spraying device according to claim 3, characterized in that: The outer diameter of the plug disc (21) is smaller than the inner diameter of the connecting pipe (20); The plug disc (21) is radially connected to a plurality of sliding rods (211), and one end of the sliding rod (211) away from the plug disc (21) is connected to a slider; The inner wall of the connecting pipe (20) is provided with a plurality of slide rails (201) along the axial direction, and the sliding blocks correspond to the slide rails (201) one by one and are slidably connected.

5. The airborne spraying device according to claim 4, characterized in that: A screw (30) is coaxially rotatably provided in the connecting pipe (20), and the plug disc (21) is coaxially screwed to the outside of the screw (30); The screw (30) is coaxially sleeved with an axial flow impeller (31), and the outer diameter of the axial flow impeller (31) is slightly smaller than the inner diameter of the connecting pipe (20).

6. The airborne spraying device according to claim 5, characterized in that: Both sides of the plug disc (21) arranged along the axial direction of the screw (30) are conical surfaces, and the two conical surfaces are symmetrically arranged. The conical surface of the plug disc (21) is an elastic surface.

7. The airborne spraying device according to claim 6, characterized in that: The screw (30) is a double-headed screw; There are two plug discs (21) and two pairs of closed rings (22); The two pairs of closed rings (22) are symmetrically arranged at both ends of the connecting pipe (20), and the two plug discs (21) correspond to the two pairs of closed rings (22) respectively, and are arranged between the corresponding two closed rings (22), and are respectively screwed to the threads at both ends of the screw rod (30).

8. The airborne spraying device according to claim 7, characterized in that: Both ends of the screw rod (30) are coaxially rotatably connected to a ring seat (301), and the ring seat (301) is provided with a plurality of connecting rods (302) radially outward, and the connecting rods (302) are connected to the inner wall of the connecting pipe (20); A reset torsion spring is provided in the ring seat (301); When the return torsion spring is in a natural state, the distance between the plug disc (21) and the corresponding two closed rings (22) is equal.

9. The airborne spraying device according to claim 8, characterized in that: A positioning spring (212) is axially provided in the slide rod (211), and a positioning ball (213) is connected to the outer end of the positioning spring (212); Two positioning grooves (2011) are provided at the bottom of the slide rail (201). When the positioning ball (213) is pushed into the positioning groove (2011) by the positioning spring (212), the plug disc (21) and the closed ring (22) are closed and plugged.

10. The airborne spraying device according to claim 1, characterized in that: The spray pipe (12) is connected to the upper portion of the first medicine box (10) or the second medicine box (11) via a plurality of steel cables (13) to form a triangular structure.

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