Centrifugal sprayer

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, in particular to a centrifugal sprayer. The centrifugal spray head comprises a spray rod, a centrifugal motor, a water bin and an atomizing disc, a hole allowing an output shaft of the centrifugal motor to penetrate through is formed in the water bin, one end of the centrifugal motor is installed at the bottom of the spray rod, and the other end of the centrifugal motor penetrates through the water bin and is connected with the atomizing disc; the water sump comprises a water sump upper cover and a water sump lower cover, a hole for containing the lower end of the water sump upper cover is formed in the water sump lower cover, the upper end of the water sump upper cover covers the opening end of the water sump lower cover, and the front end of the water sump upper cover is provided with a liquid inlet pipe connected with a liquid inlet connector. The liquid inlet pipe is communicated with a containing space between the water sump upper cover and the water sump lower cover, a pressure liquid outlet is formed in the side wall of the water sump lower cover, and a waterproof ring located below the pressure liquid outlet is arranged between the water sump lower cover and the water sump upper cover. Atomized particles are more uniform and fine through double atomization.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a centrifugal nozzle. Background Art

[0002] Currently, the demand for flow rate for drone spraying is getting higher and higher, especially in the use scenarios of tall poles and lush leaves such as fruit trees. The atomization capacity of centrifugal nozzles on the market is limited. Increasing the flow rate will result in uneven atomization and large atomization particles. In severe cases, it will cause damage and cannot meet the use scenarios of fruit tree spraying.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in this field. Utility Model Content

[0004] The utility model aims to overcome the deficiencies in the prior art and provide a centrifugal nozzle to solve the problems in the related art of small flow rate, uneven atomization and large atomized particles caused by increasing the flow rate.

[0005] In order to solve the above technical problems, the utility model is implemented by adopting the following technical solutions:

[0006] The utility model provides a centrifugal spray head, comprising a spray rod, a centrifugal motor, a water tank and an atomizing disk. The water tank is provided with a hole for the output shaft of the centrifugal motor to pass through. One end of the centrifugal motor is installed at the bottom of the spray rod, and the other end passes through the water tank and is connected to the atomizing disk.

[0007] The water tank comprises an upper cover and a lower cover, the lower cover is provided with a hole for accommodating the lower end of the upper cover, and the upper end of the upper cover is covered on the opening end of the lower cover, the front end of the upper cover is provided with a liquid inlet pipe connected to the liquid inlet joint, the liquid inlet pipe is communicated with the accommodating space between the upper cover and the lower cover, the side wall of the lower cover is provided with a pressure outlet, and a waterproof ring is provided below the pressure outlet between the lower cover and the upper cover.

[0008] Furthermore, the waterproof ring is sleeved on one end of the water tank upper cover extending into the water tank lower cover, and the waterproof ring is tightly fitted to the inner wall of the water tank lower cover.

[0009] Furthermore, a circle of grooves for accommodating a sealing ring is provided on the covering surface where the top of the water tank lower cover contacts the bottom of the water tank upper cover.

[0010] Further, the water tank upper cover includes a first fixed end face and an extension end, an end of the first fixed end face away from the extension end is provided with a liquid inlet pipe connected to the liquid inlet joint, the water tank lower cover includes a second fixed end face covering the first fixed end face and a water tank lower cover body for accommodating the extension end, the first fixed end face and the second fixed end face are both provided with a plurality of through holes in the vertical direction, and a plurality of threaded groove holes are provided at the bottom of the centrifugal motor, and the water tank lower cover and the water tank upper cover can be fastened to the bottom of the centrifugal motor by bolts that penetrate the second fixed end face, the first fixed end face and the holes provided on the centrifugal motor in sequence.

[0011] Furthermore, fixing clamps are installed on both sides of the liquid inlet pipe, and two fixing ears are provided on the second fixed end surface near the two ends of the two fixing clamps. The bottom of the two fixing clamps is provided with a fastening groove for screwing bolts, and the two fixing ears are provided with through holes in the vertical direction. The two fixing ears and the two fixing clamps can be fixedly connected by bolts.

[0012] Furthermore, the liquid inlet connector is threadably connected to the liquid inlet pipe.

[0013] Furthermore, the atomizing disk comprises an atomizing disk body and a plurality of atomizing teeth distributed along the circumference of the atomizing disk body.

[0014] Furthermore, the atomizing disk body is a circular structure, and the plurality of atomizing teeth are a sawtooth structure.

[0015] Furthermore, the atomizing disk also includes a connecting piece drivingly connected to the centrifugal motor, one end of the connecting piece is fixed to the bottom of the atomizing disk, and the other end is connected to the output shaft of the centrifugal motor.

[0016] Furthermore, there are multiple pressure liquid outlets, and the extending direction of each pressure liquid outlet is the same as the axial direction of the driving shaft of the centrifugal motor.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model is provided with a water tank upper cover and a water tank lower cover, and the accommodating space between the water tank upper cover and the water tank lower cover is communicated with by a liquid inlet pipe, and a waterproof ring is arranged between the water tank lower cover and the water tank upper cover, so that the external medicine liquid can only be atomized at the first stage through the pressure liquid outlet opened on the side wall of the water tank lower cover, changing from a water column state to a water film state, and then atomized for the second time through a high-speed rotating atomizing disk, changing from a water film state to a water mist state, so that the atomized particles are more uniform and delicate, and the spray flow rate is greatly improved compared with the traditional centrifugal nozzle, and the structure is simple, the cost is low, and the installation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a centrifugal nozzle provided by an embodiment of the utility model;

[0020] Figure 2 It is a structural exploded diagram of a centrifugal nozzle provided by an embodiment of the utility model;

[0021] Figure 3 It is a structural explosion diagram of a water tank provided in an embodiment of the utility model;

[0022] Figure 4 It is a structural explosion diagram of a water tank provided in an embodiment of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the water tank lower cover provided by an embodiment of the utility model;

[0024] Figure 6 It is a structural schematic diagram of an atomizing disk provided in an embodiment of the utility model;

[0025] In the figure: 1: spray rod; 2: centrifugal motor; 3: water tank; 4: atomizing disk; 5: water tank upper cover; 6: water tank lower cover; 7: liquid inlet joint; 8: liquid inlet pipe; 9: pressure liquid outlet; 10: waterproof ring; 11: sealing ring; 12: first fixed end face; 13: insertion end; 14: second fixed end face; 15: water tank lower cover body; 16: fixing clamp; 17: fixing ear; 18: atomizing disk body; 19: atomizing teeth; 20: connecting piece. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0027] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. Example

[0028] like Figure 1-2 As shown, this embodiment provides a centrifugal nozzle, including a spray rod 1, a centrifugal motor 2, a water tank 3 and an atomizing disk 4, wherein the water tank 3 is fixed to the bottom of the centrifugal motor 2, and a hole is provided on the water tank 3 for the output shaft of the centrifugal motor 2 to pass through, one end of the centrifugal motor 2 is installed at the bottom of the spray rod 1, and the other end passes through the water tank 3 and is connected to the atomizing disk 4.

[0029] See also Figure 3-4 The water tank 3 includes a water tank upper cover 5 and a water tank lower cover 6. The water tank lower cover 6 is provided with a hole for accommodating the lower end of the water tank upper cover 5, and the upper end of the water tank upper cover 5 is covered on the opening end of the water tank lower cover 6.

[0030] Specifically, the water tank upper cover 5 includes a first fixed end face 12 and an insertion end 13, the water tank lower cover 6 includes a second fixed end face 14 covering the first fixed end face 12 and a water tank lower cover body 15 for accommodating the insertion end 13, the first fixed end face 12 and the second fixed end face 14 are both provided with a plurality of through holes in the vertical direction, and a plurality of threaded groove holes are provided at the bottom of the centrifugal motor 2, the water tank lower cover 6 and the water tank upper cover 5 can be fastened to the bottom of the centrifugal motor 2 by bolts that penetrate the second fixed end face 14 and the first fixed end face 12 and the holes provided on the centrifugal motor 2 in sequence.

[0031] In this embodiment, the front end of the water tank upper cover 5 has a liquid inlet pipe 8 connected to the liquid inlet joint 7, and the liquid inlet pipe 8 is communicated with the accommodating space between the water tank upper cover 5 and the water tank lower cover 6.

[0032] Specifically, a liquid inlet pipe 8 connected to the liquid inlet connector 7 is disposed on one end of the first fixed end surface 12 away from the insertion end 13. To prevent liquid medicine from leaking, the liquid inlet connector 7 and the liquid inlet pipe 8 are connected by threaded fitting.

[0033] In this embodiment, fixing clamps 16 are installed on both sides of the liquid inlet pipe 8, and two fixing ears 17 are provided at the two ends of the second fixed end surface 14 near the two fixing clamps 16. The bottom of the two fixing clamps 16 is provided with a fastening groove for screwing bolts into, and the two fixing ears 17 are provided with through holes in the vertical direction. The two fixing ears 17 and the two fixing clamps 16 can be fixedly connected by bolts.

[0034] Specifically, a circle of grooves for accommodating a sealing ring 11 is provided on the covering surface where the top of the water tank lower cover 6 contacts the bottom of the water tank upper cover 5 , and the sealing ring 11 is used to improve the sealing between the water tank upper cover 5 and the water tank lower cover 6 .

[0035] See also Figure 5The side wall of the water tank lower cover 6 is provided with a pressure outlet 9. Specifically, there are multiple pressure outlets 9, and the extension direction of each pressure outlet 9 is the same as the axial direction of the driving shaft of the centrifugal motor 2.

[0036] In this embodiment, a waterproof ring 10 is provided between the water tank lower cover 6 and the water tank upper cover 5. Specifically, the waterproof ring 10 is sleeved on one end of the water tank upper cover 5 extending into the water tank lower cover 6. The waterproof ring 10 is located below the pressure liquid outlet 9 and is tightly fitted with the inner wall of the water tank lower cover 6.

[0037] See also Figure 6 The atomizing disk 4 includes an atomizing disk body 18 and a plurality of atomizing teeth 19 distributed along the circumference of the atomizing disk body 18 .

[0038] Specifically, the atomizing disk body 18 is a circular structure, and the plurality of atomizing teeth 19 are a sawtooth structure.

[0039] In this embodiment, the atomizing disk 4 further includes a connecting member 20 drivingly connected to the centrifugal motor 2 . One end of the connecting member 20 is fixed to the bottom of the atomizing disk 4 , and the other end is connected to the output shaft of the centrifugal motor 2 .

[0040] The working principle of this embodiment:

[0041] During the spraying process, the external liquid medicine enters the accommodating space between the water tank upper cover 5 and the water tank lower cover 6 through the liquid inlet pipe 8 connected to the liquid inlet joint 7. Since the liquid outlet at the bottom of the water tank lower cover 6 is sealed by the waterproof ring 10, the liquid medicine can only flow out through the pressure liquid outlet opened on the side wall of the water tank lower cover 6. At this time, the liquid medicine undergoes the first stage of atomization and changes from a water column state to a water film state.

[0042] At the same time, the centrifugal motor 2 drives the atomizing disk 4 to rotate at high speed, generating centrifugal force to throw out the outflowing liquid medicine. The liquid medicine undergoes secondary atomization through collision with the wall of the atomizing disk 4 and friction with the air, changing from a water film state to a water mist state.

[0043] The atomized particles after secondary atomization in this embodiment are more uniform and fine. This embodiment has a simple structure and low cost. It also has the advantages of large flow rate and fine atomization. Compared with the traditional centrifugal nozzle with a maximum flow rate of only 5L / min, this embodiment has a significant improvement. The maximum flow rate can reach 15L / min while the droplet diameter is not much different, and the atomization effect is good.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A centrifugal nozzle, characterized in that: It comprises a spray rod (1), a centrifugal motor (2), a water tank (3) and an atomizing disc (4); the water tank (3) is provided with a hole for the output shaft of the centrifugal motor (2) to pass through; one end of the centrifugal motor (2) is mounted on the bottom of the spray rod (1), and the other end passes through the water tank (3) and is connected to the atomizing disc (4); The water tank (3) comprises a water tank upper cover (5) and a water tank lower cover (6). The water tank lower cover (6) is provided with a hole for accommodating the lower end of the water tank upper cover (5), and the upper end of the water tank upper cover (5) covers the open end of the water tank lower cover (6). The front end of the water tank upper cover (5) is provided with a liquid inlet pipe (8) connected to the liquid inlet joint (7), and the liquid inlet pipe (8) is communicated with the accommodating space between the water tank upper cover (5) and the water tank lower cover (6). The side wall of the water tank lower cover (6) is provided with a pressure liquid outlet (9), and a waterproof ring (10) located below the pressure liquid outlet (9) is provided between the water tank lower cover (6) and the water tank upper cover (5).

2. The centrifugal nozzle according to claim 1, characterized in that: The waterproof ring (10) is sleeved on one end of the water tank upper cover (5) extending into the water tank lower cover (6), and the waterproof ring (10) is tightly fitted to the inner wall of the water tank lower cover (6).

3. The centrifugal nozzle according to claim 1, characterized in that: A circle of grooves for accommodating a sealing ring (11) is provided on the cover surface where the top of the water tank lower cover (6) contacts the bottom of the water tank upper cover (5).

4. The centrifugal nozzle according to claim 1, characterized in that: The water tank upper cover (5) comprises a first fixed end surface (12) and an insertion end (13); an end of the first fixed end surface (12) away from the insertion end (13) is provided with a liquid inlet pipe (8) connected to the liquid inlet joint (7); the water tank lower cover (6) comprises a second fixed end surface (14) covering the first fixed end surface (12) and a water tank lower cover body (15) for accommodating the insertion end (13); a plurality of through holes are provided on the first fixed end surface (12) and the second fixed end surface (14) in a vertical direction; a plurality of threaded groove holes are provided on the bottom of the centrifugal motor (2); the water tank lower cover (6) and the water tank upper cover (5) can be fastened to the bottom of the centrifugal motor (2) by bolts that penetrate the second fixed end surface (14), the first fixed end surface (12) and the holes provided on the centrifugal motor (2) in sequence.

5. The centrifugal nozzle according to claim 4, characterized in that: Fixing clamps (16) are installed on both sides of the liquid inlet pipe (8); two fixing ears (17) are provided on the second fixing end surface (14) near the two ends of the two fixing clamps (16); the bottoms of the two fixing clamps (16) are provided with fastening grooves for screwing bolts; the two fixing ears (17) are provided with through holes in the vertical direction; the two fixing ears (17) and the two fixing clamps (16) can be fixedly connected by bolts.

6. The centrifugal nozzle according to claim 1, characterized in that: The liquid inlet connector (7) is threadably connected to the liquid inlet pipe (8).

7. The centrifugal nozzle according to claim 1, characterized in that: The atomizing disc (4) comprises an atomizing disc body (18) and a plurality of atomizing teeth (19) distributed along the circumference of the atomizing disc body (18).

8. The centrifugal nozzle according to claim 7, characterized in that: The atomizing disc body (18) is a circular structure, and the plurality of atomizing teeth (19) are a sawtooth structure.

9. The centrifugal nozzle according to claim 7, characterized in that: The atomizing disk (4) further comprises a connecting piece (20) which is transmission-connected to the centrifugal motor (2); one end of the connecting piece (20) is fixed to the bottom of the atomizing disk (4), and the other end is connected to the output shaft of the centrifugal motor (2).

10. The centrifugal nozzle according to claim 1, characterized in that: There are a plurality of pressure liquid outlets (9), and the extension direction of each pressure liquid outlet (9) is the same as the axial direction of the drive shaft of the centrifugal motor (2).

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