A replaceable tip dual fluid atomizing nozzle

Abstract

The utility model discloses a double fluid atomizing nozzle of replaceable spray head, include: fluid input connecting piece, its inside is equipped with first fluid input passage and second fluid input passage that are independent of each other, spray head subassembly is detachably connected with fluid input connecting piece, spray head subassembly contains outer spray head and the inner spray head nested in its inside, and the inner spray head is equipped with the first fluid output passage and second fluid output passage that communicate, first fluid input passage communicates with first fluid output passage, and second fluid input passage communicates with second fluid output passage. Through independent input and output passage structure, ensure that two kinds of fluid always keep isolated in the inside of nozzle, can open two kinds of fluid atomization simultaneously or open alone according to need. Spray head subassembly and fluid input connecting piece are convenient for quick dismounting, cleaning or replacement, adapt to different working condition demand, be applicable to unmanned plane carries special spraying equipment, be used for agricultural irrigation operation, improve spraying efficiency and coverage area.

Description

Technical Field

[0001] This utility model relates to the field of spray equipment technology, specifically to a dual-fluid atomizing nozzle with replaceable nozzle head. Background Technology

[0002] Traditional dual-fluid nozzles have the following drawbacks:

[0003] 1. Fluid mixing problem: Due to channel design defects, most nozzles cause two fluids (such as pure water and medicine) to mix internally in advance, affecting the accuracy of spray composition and even causing blockage.

[0004] 2. Difficult to maintain: The fixed structure is difficult to disassemble and clean, the accumulation of residue reduces atomization efficiency, and frequent replacement increases costs.

[0005] 3. Structural redundancy: Existing nested nozzles are bulky, making it difficult to meet the lightweight requirements of UAVs, and they are prone to vibration and leakage under high-pressure conditions.

[0006] Therefore, there is an urgent need for a dual-fluid atomizing nozzle that combines the advantages of detachable and replaceable parts with a dual-channel design. Utility Model Content

[0007] To address the shortcomings of existing technologies, this invention provides a dual-fluid atomizing nozzle with replaceable nozzle heads. Through a completely isolated dual-channel design, it ensures zero mixing of the two fluids inside the nozzle, enabling quick assembly and disassembly of the nozzle assembly, improving maintenance efficiency and adaptability to different operating conditions.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A two-fluid atomizing nozzle with replaceable nozzle head, comprising:

[0010] A fluid input connector, which has an independent first fluid input channel and a second fluid input channel inside;

[0011] The nozzle assembly is detachably connected to the fluid input connector;

[0012] The nozzle assembly includes an outer nozzle and an inner nozzle nested therein; the inner nozzle is provided with a first fluid output channel and a second fluid output channel that are connected; the first fluid input channel is connected to the first fluid output channel, and the second fluid input channel is connected to the second fluid output channel.

[0013] Furthermore, the nozzle assembly also includes an upper nozzle; the upper nozzle is embedded inside the upper surface of the outer nozzle and forms a cavity with the inner nozzle; the cavity is connected to the second fluid output channel; the upper nozzle is provided with a second fluid output hole penetrating its body and a through hole for avoiding the first fluid output channel.

[0014] Furthermore, the inner diameter of the second fluid output orifice is smaller than the inner diameter of the second fluid output channel.

[0015] Furthermore, the fluid input connector is detachably connected to the external nozzle via a threaded or plug-in connection.

[0016] Furthermore, the inner wall of the fluid input connector is provided with a first step and a second step; the inner nozzle is provided with an outward expansion portion, which abuts against the first step; the upper nozzle is provided with an outward protrusion portion, which abuts against the second step.

[0017] Furthermore, a seal is provided between the fluid input connector and the nozzle assembly; the seal is located between the inner wall of the fluid input connector and the outer wall of the inner nozzle, and has openings for the first fluid and the second fluid to pass through respectively.

[0018] Furthermore, the second fluid output channel is located inside the outer nozzle, and the inner nozzle is detachably installed inside the second fluid output channel; the inner nozzle is provided with a fluid inlet communicating with the second fluid output channel and a fluid output channel inside it.

[0019] Furthermore, the inner nozzle and the outer nozzle are connected by threads.

[0020] Furthermore, a sealing element is provided between the fluid input connector and the connecting end face of the external nozzle, and the sealing element has independent through holes for the first fluid and the second fluid to pass through respectively.

[0021] Compared with existing technologies, this patented technical solution achieves the following beneficial effects: Through independent input and output channel structures, the two fluids are ensured to remain isolated within the nozzle, preventing mixing. Both fluids can be sprayed simultaneously, or only one fluid can be sprayed individually, as needed. The nozzle assembly and fluid input connector are detachably connected, facilitating quick disassembly, cleaning, or replacement to adapt to different working conditions. Overall, it solves common problems of traditional nozzles, such as leakage and maintenance difficulties, while balancing long-term economic efficiency and convenience. It is suitable for use on drone-mounted dedicated spraying equipment for agricultural irrigation, improving spraying efficiency and coverage area. Attached Figure Description

[0022] Figure 1 The diagram shown is a schematic diagram of the assembly structure of embodiment 1 of the utility model;

[0023] Figure 2 The diagram shown is a cross-sectional view of embodiment 1 of the utility model;

[0024] Figure 3 The diagram shown is an exploded view of embodiment 1 of the utility model;

[0025] Figure 4 The diagram shown is a schematic diagram of the assembly structure of embodiment 2 of the utility model;

[0026] Figure 5 The diagram shown is a cross-sectional view of embodiment 2 of the utility model;

[0027] Figure 6 The diagram shown is an exploded view of embodiment 2 of the utility model.

[0028] In the figure: 1. Fluid input connector; 2. Nozzle assembly; 3. Seal; 11. First fluid input channel; 12. Second fluid input channel; 13. First step; 14. Second step; 21. Outer nozzle; 22. Inner nozzle; 23. Upper nozzle; 24. Fluid inlet; 25. Fluid output channel; 31. Through port; 32. Perforation; 221. First fluid output channel; 222. Second fluid output channel; 223. Outward expansion; 231. Cavity; 232. Second fluid output hole; 233. Through hole; 234. Outward protrusion. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1: See Figure 1-3 As shown, this embodiment provides a two-fluid atomizing nozzle with replaceable nozzle head, comprising:

[0031] The fluid input connector 1 has an independent first fluid input channel 11 and a second fluid input channel 12 inside.

[0032] The nozzle assembly 2 is detachably connected to the fluid input connector 1. The nozzle assembly 2 includes an outer nozzle 21 and an inner nozzle 22 disposed inside the outer nozzle. The inner nozzle 22 has a first fluid output channel 221 and a second fluid output channel 222. The first fluid input channel 11 communicates with the first fluid output channel 221, and the second fluid input channel 12 communicates with the second fluid output channel 222. It should be noted that the fluid input connector 1 is connected to the outer nozzle 21 by a threaded or plug-in connection. Through the independent input and output channel structure, two fluids, such as pure water and chemicals or gases, are kept isolated inside the nozzle, preventing mixing. Both fluids can be sprayed simultaneously, or only one fluid can be sprayed, depending on the spraying requirements. The nozzle assembly 2 and the fluid input connector 1 are detachably connected, facilitating quick disassembly, cleaning, or replacement to adapt to different working conditions. The inner nozzle 22 is integrated inside the outer nozzle 21, forming a compact nested design that saves space while ensuring a stable fluid path.

[0033] The nozzle assembly 2 in this embodiment also includes an upper nozzle 23, which is embedded inside the upper surface of the outer nozzle 21 and forms a cavity 231 with the inner nozzle 22. The cavity 231 communicates with the second fluid output channel 222. The upper nozzle 23 has a second fluid output hole 232 penetrating its body and a through hole 233 for avoiding the first fluid output channel 221. The upper nozzle 23 is embedded inside the outer nozzle 21 to form a nested structure, which saves space and enhances the overall rigidity. The cavity serves as a transition zone for the second fluid, which can buffer fluid pressure fluctuations, thereby improving the spray quality. The through hole 233 is used to avoid the first fluid output channel 221, ensuring that the first fluid path is not obstructed.

[0034] The inner diameter of the second fluid output orifice 232 is smaller than the inner diameter of the second fluid output channel 222. By reducing the orifice size, the Venturi effect is used to accelerate the flow rate of the second fluid, generating a high-speed shearing effect at the outlet, promoting fluid atomization and achieving a finer atomization effect.

[0035] The fluid input connector 1 has a first stepped portion 13 and a second stepped portion 14 on its inner wall; the inner nozzle 22 has an outward expansion portion 223, and the fluid input connector 1 presses the inner nozzle 22 so that the outward expansion portion 223 abuts against the first stepped portion 13; the upper nozzle 23 has an outward protrusion 234, and the inner nozzle 22 presses the upper nozzle 23 so that the outward protrusion 234 abuts against the second stepped portion 14. The abutting structure formed by the first stepped portion 13 and the second stepped portion 14, the outward expansion portion 223, and the outward protrusion 234 ensures that the inner nozzle 22 and the upper nozzle 23 are automatically aligned during assembly, while preventing component misalignment and reducing the risk of vibration under high-pressure fluid.

[0036] A sealing element 3 is provided between the fluid input connector 1 and the nozzle connection assembly 2. The sealing element 3 is located between the inner wall of the fluid input connector 1 and the outer wall of the inner nozzle 22, and has a through-hole 31 for the first fluid and the second fluid to pass through. The sealing element 3 is placed in the radial gap, directly sealing the contact surface between the fluid input connector 1 and the inner nozzle 22, effectively preventing fluid leakage.

[0037] Example 2: See Figure 4-6 As shown, this embodiment provides a two-fluid atomizing nozzle with replaceable nozzle head, comprising:

[0038] The fluid input connector 1 has an independent first fluid input channel 11 and a second fluid input channel 12 inside.

[0039] The nozzle assembly 2 includes an outer nozzle 21 and an inner nozzle 22. The outer nozzle 21 is connected to the fluid input connector 1 by a thread or a plug-in method. The outer nozzle 21 has a first fluid output channel 221 and a second fluid output channel 222 inside. The inner nozzle 22 is detachably disposed in the second fluid output channel 222. The inner nozzle 22 has a fluid input port 24 communicating with the second fluid output channel 222 and a fluid output channel 25 inside it. The first fluid input channel 11 communicates with the first fluid output channel 221, and the second fluid input channel 12 communicates with the second fluid output channel 222.

[0040] A sealing element 3 is provided between the connection end face of the fluid input connector 1 and the external nozzle 21. The sealing element 3 has independent through holes 32 for the first fluid and the second fluid to pass through respectively. The sealing element 3 is placed at the end face connection to seal the entire interface and effectively prevent fluid leakage at the connection point.

[0041] This embodiment is basically the same as Embodiment 1, except that the second fluid output channel 222 is opened in the outer nozzle 21, and the inner nozzle 22 is detachably set in the second fluid output channel 222. The inner nozzle 22 is provided with a fluid inlet 24 communicating with the second fluid output channel 222 and a fluid output channel 25 inside it. This design reduces the structural complexity and improves the ease of assembly between the inner nozzle 22 and the outer nozzle 21. The inner nozzle 22 is set in the second fluid output channel 222 of the outer nozzle 21 by a threaded connection. From the overall structure, it can be seen that the structure that achieves the same effect is simpler than that of Embodiment 1, reduces nested parts, and improves assembly efficiency by 30%.

[0042] Compared with existing technologies, this patented technical solution achieves the following beneficial effects: Through independent input and output channel structures, the two fluids are ensured to remain isolated within the nozzle, preventing mixing. Both fluids can be sprayed simultaneously, or only one fluid can be sprayed individually, as needed. The nozzle assembly and fluid input connector are detachably connected, facilitating quick disassembly, cleaning, or replacement to adapt to different working conditions. Overall, it solves common problems of traditional nozzles, such as leakage and maintenance difficulties, while balancing long-term economic efficiency and convenience. It is suitable for use on drone-mounted dedicated spraying equipment for agricultural irrigation, improving spraying efficiency and coverage area.

Claims

1. A two-fluid atomizing nozzle with replaceable nozzle head, characterized in that, include: The fluid input connector (1) has an independent first fluid input channel (11) and a second fluid input channel (12) inside. The nozzle assembly (2) is detachably connected to the fluid input connector (1); The nozzle assembly (2) includes an outer nozzle (21) and an inner nozzle (22) nested therein; the inner nozzle (22) is provided with a first fluid output channel (221) and a second fluid output channel (222) that are connected; the first fluid input channel (11) is connected to the first fluid output channel (221), and the second fluid input channel (12) is connected to the second fluid output channel (222).

2. The dual-fluid atomizing nozzle with replaceable nozzle head according to claim 1, characterized in that, The nozzle assembly (2) also includes an upper nozzle (23); the upper nozzle (23) is embedded inside the upper surface of the outer nozzle (21) and forms a cavity (231) between it and the inner nozzle (22); the cavity (231) is connected to the second fluid output channel (222); the upper nozzle (23) is provided with a second fluid output hole (232) penetrating its body and a through hole (233) for avoiding the first fluid output channel (221).

3. The dual-fluid atomizing nozzle with replaceable nozzle head according to claim 2, characterized in that, The inner diameter of the second fluid output hole (232) is smaller than the inner diameter of the second fluid output channel (222).

4. The dual-fluid atomizing nozzle with replaceable nozzle head according to any one of claims 1-3, characterized in that, The fluid input connector (1) and the external nozzle (21) are detachably connected by thread or plug.

5. The dual-fluid atomizing nozzle with replaceable nozzle head according to claim 2, characterized in that, The fluid input connector (1) has a first step (13) and a second step (14) on its inner wall; the inner nozzle (22) has an outward expansion (223) which abuts against the first step (13); the upper nozzle (23) has an outward protrusion (234) which abuts against the second step (14).

6. The dual-fluid atomizing nozzle with replaceable nozzle head according to claim 1 or 5, characterized in that, A sealing element (3) is provided between the fluid input connector (1) and the nozzle assembly (2); the sealing element (3) is located between the inner wall of the fluid input connector (1) and the outer wall of the inner nozzle (22), and has openings (31) for the first fluid and the second fluid to pass through respectively.

7. The dual-fluid atomizing nozzle with replaceable nozzle head according to claim 1, characterized in that, The second fluid output channel (222) is located inside the outer nozzle (21), and the inner nozzle (22) is detachably installed inside the second fluid output channel (222); the inner nozzle (22) is provided with a fluid inlet (24) communicating with the second fluid output channel (222) and a fluid output channel (25) inside it.

8. The dual-fluid atomizing nozzle with replaceable nozzle head according to claim 7, characterized in that, The inner nozzle (22) and the outer nozzle (21) are connected by threads.

9. The dual-fluid atomizing nozzle with replaceable nozzle head according to claim 7 or 8, characterized in that, A sealing element (3) is provided between the fluid input connector (1) and the connecting end face of the external nozzle (21), and the sealing element (3) has independent perforations (32) for the first fluid and the second fluid to pass through respectively.

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