Double-fluid water mist nozzle

Abstract

The utility model discloses a double-fluid water mist spray head which comprises a spray head body, one end of the spray head body is connected with a communicating bin, one end of the communicating bin is connected with an airflow pipe, one side of the communicating bin is connected with a liquid flow pipe, and one end of the airflow pipe and one end of the liquid flow pipe are provided with a speed adjusting device. The speed adjusting device comprises a rotating sleeve, a sliding groove, a sliding block, a sliding plate, a linkage sleeve, a moving rod, a moving sleeve, a matching sleeve and a thrust bearing, the sliding groove is obliquely formed in the liquid flow pipe and the air flow pipe, the sliding block is connected to one side of the sliding plate, the thrust bearing is connected with the linkage sleeve and the matching sleeve, the moving rod is sleeved with the moving sleeve, and the sliding rod is sleeved with the matching sleeve. The outer wall of the matching sleeve is connected with the inner wall of the liquid flow pipe and the inner wall of the air flow pipe through threads, a locking mechanism is arranged on the outer side of the liquid flow pipe and the outer side of the air flow pipe, and the locking mechanism comprises a locking sleeve, a control panel, a control groove, a control hole, a shifting rod, a shifting plate, a locking spring, a locking block and a stop block. The flow velocity adjusting mechanism has flow velocity adjusting flexibility and adjusting mechanism stability.

Description

Technical Field

[0001] This utility model relates to the field of dual-fluid fine water mist nozzle technology, and more specifically, it relates to a dual-fluid fine water mist nozzle. Background Technology

[0002] In the fields of fire safety and industrial dust suppression, dual-fluid fine water mist nozzles are an important type of spraying equipment. Their atomization effect and performance directly affect the fire extinguishing efficiency and dust suppression effect. However, through systematic evaluation and practical application testing of mainstream dual-fluid fine water mist nozzles on the market, significant defects in existing technologies have been found.

[0003] First, existing dual-fluid fine water mist nozzles generally suffer from imperfect fluid regulation mechanisms. These devices often employ a fixed liquid-to-gas ratio design, failing to independently adjust the delivery speeds of liquid and gas according to the actual needs of different application scenarios. Under varying ambient temperatures and humidity conditions, the optimal liquid-to-gas ratio can differ significantly, and the fixed design cannot adapt to such variations. Especially when facing liquids of different viscosities or gas sources of different pressures, the device cannot optimize atomization by adjusting their respective flow rates. Furthermore, most application scenarios require adjustments to the liquid-to-gas ratio based on specific working conditions. The fixed design of existing devices results in an average decrease in atomization efficiency of over 35% under suboptimal conditions. This lack of flexible adjustment capability severely restricts the applicability of the equipment, not only affecting the spraying effect but also potentially leading to resource waste and adversely impacting practical applications.

[0004] Secondly, while some equipment manufacturers have achieved independent adjustment of liquid and gas flow rates through innovative designs, these improvements still suffer from serious deficiencies in structural stability. In-depth performance testing reveals that these adjustment mechanisms exhibit significant instability when subjected to continuous liquid-gas impacts. According to long-term operating data, this leads to fluctuations in the preset liquid-gas flow rates. This instability primarily stems from the structural design's insufficient resistance to vibration and impact. Especially under high-pressure conditions, the strong impact of liquid-gas flow causes the adjustment components to gradually loosen, and existing mechanisms often cannot effectively resist such continuous impacts. More seriously, the instantaneous pressure fluctuations generated during equipment start-up and shutdown further exacerbate component displacement, even requiring readjustment of flow rate parameters after prolonged operation. This problem of adjustment function failure due to insufficient structural stability not only increases the frequency and cost of equipment maintenance but also affects the stability of the spray effect, bringing significant adverse effects to practical applications. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a dual-fluid fine water mist nozzle to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a dual-fluid fine water mist nozzle, comprising a nozzle, one end of which is connected to a confluence chamber, one end of which is connected to an airflow pipe, and one side of which is connected to a liquid flow pipe. A speed regulating device is provided at one end of the airflow pipe and the liquid flow pipe. The speed regulating device includes a rotating sleeve, a sliding groove, a sliding block, a sliding plate, a linkage sleeve, a moving rod, a moving sleeve, a mating sleeve, and a thrust bearing. The rotating sleeve is rotatably connected to one end of the liquid flow pipe and the airflow pipe. The sliding groove is inclinedly formed within the liquid flow pipe and the airflow pipe. The sliding plate is slidably disposed within the sliding groove. The sliding block is fixedly connected to one side of the sliding plate. Both ends of the thrust bearing are detachably connected to the linkage sleeve and the mating sleeve, respectively. The moving rod is fixedly disposed inside the rotating sleeve. The moving sleeve is fixedly disposed inside the rotating sleeve. The movable sleeve is fixedly installed inside the mating sleeve, and slidably fitted on the outside of the movable rod. The outer wall of the mating sleeve is movably connected to the inner wall of the liquid flow pipe and the air flow pipe respectively by threads. A locking mechanism is provided on the outside of the liquid flow pipe and the air flow pipe. The locking mechanism includes a locking sleeve, a control plate, a control groove, a control hole, a shift rod, a shift plate, a locking spring, a locking block, and a stop block. The locking sleeve is slidably fitted on the outside of the liquid flow pipe and the air flow pipe respectively. The control plate is rotatably installed on the outside of the liquid flow pipe and the air flow pipe respectively. The control groove is opened on the control plate, and the control hole is opened at one end of the control groove. The shift rod is fixedly connected to one side of the locking sleeve. The shift plate is fixedly installed on the shift rod. The two ends of the locking spring are respectively connected to two adjacent locking blocks. Multiple stop blocks are fixedly installed on the outside of the liquid flow pipe and the air flow pipe respectively.

[0009] The present invention is further configured such that an input tube is provided on one side of the rotating sleeve, and the rotating sleeve is rotatably connected to the output end of the input tube.

[0010] The present invention is further configured such that a displacement spring is movably provided on the outer side of the displacement rod, one end of the displacement spring is connected to the locking sleeve, and the other end of the displacement spring is connected to the control plate in a contact manner to ensure the stable reset of the locking sleeve.

[0011] The present invention is further configured such that a locking groove is provided in the locking block, and a plurality of locking rails are connected to one side of the rotating sleeve, wherein the locking groove and the locking rails are adapted to ensure the precise movement of the locking block.

[0012] The present invention is further configured such that a top spring is connected to one side of the sliding block, and a top block is connected to the other end of the top spring.

[0013] The present invention is further configured such that a locking wheel is rotatably provided on one side of the locking block, and the locking block is engaged between two stop blocks, so that the movement of the locking block is smoother.

[0014] The present invention is further configured such that a linkage groove is provided on one side of the linkage sleeve, and a linkage plate is connected to one side of the sliding block. The linkage groove and the linkage plate are adapted to each other, ensuring the precise movement of the sliding block.

[0015] The present invention is further configured such that the cross-sections of the outer wall of the moving rod and the inner wall of the moving sleeve are both prismatic, ensuring precise transmission.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a dual-fluid fine water mist nozzle, which has the following characteristics:

[0018] Beneficial effects:

[0019] 1. The speed control device innovatively solves the technical problem of traditional dual-fluid fine water mist nozzles' inability to flexibly adjust the liquid flow rate through the ingenious combination of a rotating sleeve, sliding groove, sliding block, sliding plate, linkage sleeve, moving rod, moving sleeve, mating sleeve, and thrust bearing. This device employs a unique mechanical transmission structure, converting rotational motion into radial displacement of the sliding block via a precision transmission mechanism, thereby achieving precise adjustment of the flow area. In particular, the inclined design of the sliding groove, combined with the smooth sliding of the sliding plate, makes the adjustment process smoother and more controllable, meeting the spraying needs under different working conditions. It is worth mentioning that… The innovative prismatic cross-section structure design of the moving rod and moving sleeve ensures reliable transmission of rotation. At the same time, the thrust bearing cleverly solves the problem of axial force when the sleeve rotates. The precise fit between the linkage groove and the linkage plate not only ensures the smoothness of the adjustment action, but also ensures the accuracy of the position of each component after adjustment. This independently adjustable dual-fluid control system completely overcomes the limitations of the fixed liquid-to-gas ratio of traditional nozzles, and realizes precise control of liquid and gas flow rates. It avoids resource waste and ensures the best atomization effect, significantly improving the applicability and working efficiency of the nozzle.

[0020] 2. The locking mechanism consists of a locking sleeve, control plate, control groove, control hole, shift rod, shift plate, locking spring, locking block, and stop block. It innovatively solves the technical defects of insufficient stability in existing speed control devices. This mechanism adopts a multi-locking design. Through the precise engagement of the locking wheel and the stop block, combined with the elastic preload of the locking spring, it ensures that the speed control device maintains its set state under any operating condition. The carefully designed control groove and control hole on the control plate, along with the shift rod and shift plate, limit the locking sleeve, making the locking operation more convenient and reliable, meeting the requirements for long-term stable operation. The precise fit between the locking rail and the locking groove, coupled with the rolling support design of the locking wheel, not only reduces the operating torque but also significantly improves the locking reliability. This multi-safety locking mechanism completely solves the problem of easy displacement in traditional speed control devices, ensuring that the dual-fluid fine water mist nozzle maintains a stable liquid-gas ratio under various operating conditions, ultimately achieving continuous and stable spray effect and providing reliable technical support for industrial applications. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a dual-fluid fine water mist nozzle according to the present invention;

[0022] Figure 2 This is a schematic diagram of the speed regulating device and locking mechanism in this utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of the speed regulating device and locking mechanism in this utility model;

[0024] Figure 4 This is a cross-sectional view of the speed regulating device and locking mechanism in this utility model, excluding the rotating sleeve portion.

[0025] Figure 5 This is a schematic diagram of the structure of the fluid flow tube, locking block, and mating sleeve in this utility model.

[0026] In the diagram: 1. Nozzle; 2. Connecting chamber; 3. Airflow pipe; 4. Liquid flow pipe; 5. Rotating sleeve; 6. Sliding groove; 7. Sliding block; 8. Sliding plate; 9. Linkage sleeve; 10. Moving rod; 11. Moving sleeve; 12. Fitting sleeve; 13. Thrust bearing; 14. Locking sleeve; 15. Control plate; 16. Control groove; 17. Control hole; 18. Shifting rod; 19. Shifting plate; 20. Locking spring; 21. Locking block; 22. Stop block; 23. Input pipe; 24. Shifting spring; 25. Locking groove; 26. Locking rail; 27. Top spring; 28. Top block; 29. ​​Locking wheel; 30. Linkage groove; 31. Linkage plate. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5 A dual-fluid fine water mist nozzle includes a nozzle 1, with a confluence chamber 2 connected to one end of the nozzle 1, an airflow pipe 3 connected to one end of the confluence chamber 2, and a liquid flow pipe 4 connected to one side of the confluence chamber 2. A speed regulating device is provided at one end of the airflow pipe 3 and the liquid flow pipe 4. The speed regulating device includes a rotating sleeve 5, a sliding groove 6, a sliding block 7, a sliding plate 8, a linkage sleeve 9, a moving rod 10, a moving sleeve 11, a mating sleeve 12, and a thrust bearing 13. The rotating sleeve 5 is rotatably connected to one end of the liquid flow pipe 4 and the airflow pipe 3. The sliding groove 6 is inclinedly formed in the liquid flow pipe 4 and the airflow pipe 3. The sliding plate 8 is slidably disposed in the sliding groove 6. The sliding block 7 is fixedly connected to one side of the sliding plate 8. The two ends of the thrust bearing 13 are detachably connected to the linkage sleeve 9 and the mating sleeve 12, respectively. The moving rod 10 is fixedly disposed inside the rotating sleeve 5, and the moving sleeve 11 is fixedly disposed inside the mating sleeve 12. The moving sleeve 11 slides... Located on the outside of the moving rod 10, the outer wall of the fitting sleeve 12 is movably connected to the inner walls of the liquid flow pipe 4 and the air flow pipe 3 respectively via threads. A locking mechanism is provided on the outside of the liquid flow pipe 4 and the air flow pipe 3. The locking mechanism includes a locking sleeve 14, a control plate 15, a control groove 16, a control hole 17, a shifting rod 18, a shifting plate 19, a locking spring 20, a locking block 21, and a stop block 22. The locking sleeve 14 is slidably fitted on the outside of the liquid flow pipe 4 and the air flow pipe 3 respectively. The control plate 15 is rotatably installed on the outside of the liquid flow pipe 4 and the air flow pipe 3 respectively. The control groove 16 is opened on the control plate 15. The control hole 17 is opened at one end of the control groove 16. The shifting rod 18 is fixedly connected to one side of the locking sleeve 14. The shifting plate 19 is fixedly installed on the shifting rod 18. The two ends of the locking spring 20 are respectively connected to two adjacent locking blocks 21. Multiple stop blocks 22 are respectively fixedly installed on the outside of the liquid flow pipe 4 and the air flow pipe 3.

[0031] In this embodiment, the complete working process of the dual-fluid fine water mist nozzle 1 begins with the delivery of both gas and liquid media to the device via connecting pipes. Compressed air enters one end of the confluence chamber 2 through the airflow pipe 3, while liquid is simultaneously delivered to the confluence chamber 2 through the liquid flow pipe 4 connected to the side of the confluence chamber 2. The two fluids meet for the first time in the confluence chamber 2 and undergo preliminary mixing. At this point, the high-speed airflow begins to exert a strong shearing effect on the liquid, disrupting the liquid's surface tension and causing it to break into larger droplets, completing the initial atomization process. This gas-liquid mixture then flows from the confluence chamber 2 to the main body of the nozzle 1 connected to it. In the mixing chamber inside the nozzle 1, the gas and liquid two-phase fluids are further thoroughly mixed, and the droplets are further broken and refined under the continuous shearing and turbulence of the high-speed airflow, forming uniformly distributed micro-droplets. The mixed gas and liquid two-phase fluids are accelerated within the nozzle 1 and ejected through a specially designed nozzle structure, where secondary atomization occurs, ultimately producing a fine water mist.

[0032] Please see Figures 3-5 As a further implementation of the overall device: an input pipe 23 is provided on one side of the rotating sleeve 5, and the rotating sleeve 5 is rotatably connected to the output end of the input pipe 23.

[0033] A shift spring 24 is movably provided on the outside of the shift rod 18. One end of the shift spring 24 is connected to the locking sleeve 14, and the other end of the shift spring 24 is connected to the control plate 15 in a contact manner.

[0034] The locking block 21 has a locking groove 25, and the rotating sleeve 5 has multiple locking rails 26 connected to one side. The locking groove 25 is adapted to the locking rails 26.

[0035] A top spring 27 is connected to one side of the sliding block 7, and a top block 28 is connected to the other end of the top spring 27.

[0036] A locking wheel 29 is provided on one side of the locking block 21, and the locking block 21 is engaged between the two stop blocks 22.

[0037] A linkage groove 30 is provided on one side of the linkage sleeve 9, and a linkage plate 31 is connected to one side of the sliding block 7. The linkage groove 30 and the linkage plate 31 are adapted to each other.

[0038] Both the outer wall of the movable rod 10 and the inner wall of the movable sleeve 11 have a prismatic cross-section design.

[0039] More specifically, when the conveying speed of the liquid pipe 4 or the gas pipe 3 needs to be adjusted according to actual requirements, firstly, the control plate 15 is rotated forward, causing the control hole 17 and the control groove 16 to rotate forward. When the control hole 17 rotates to a position concentric with the shift plate 19, the locking sleeve 14 is pushed, causing the locking sleeve 14 to drive the shift rod 18 and the shift plate 19 to slide through the shift hole. The locking sleeve 14 and the control plate 15 then work together to compress the shift spring 24. When the shift spring 24 is compressed to its limit, one of the shift plates 19 near the locking sleeve 14 passes through the control hole 17 and moves to the other side of the control plate 15. Then, the control plate 15 is rotated in the reverse direction, causing the control hole 17 and the control groove 16 to rotate in the opposite direction. The shift rod 18 enters the control groove 16, and then the shift rod 18, in conjunction with a shift plate 19 near the locking sleeve 14, limits the locking sleeve 14 to one side of the control plate 15. The locking sleeve 14 then no longer limits the locking wheel 29, and the rotating sleeve 5 rotates forward. The rotating sleeve 5, through the locking rail 26 on one side and the locking groove 25, drives the locking block 21 and the locking wheel 29 to rotate. The locking wheel 29 then rolls out between the two stop blocks 22, and the locking wheel 29 drives the locking block 21 to slide outward along the locking rail 26 and the locking groove 25. The locking block 21 then drives the locking spring 20 to stretch outward. Simultaneously, the rotating sleeve 5 drives the inner moving rod 10 to rotate, and the moving rod 10, through the moving sleeve 11, drives the mating sleeve 12 to rotate. In the forward rotation, the outer wall of the fitting sleeve 12 is movably connected to the inner walls of the airflow pipe 3 and the liquid flow pipe 4 via threads. The fitting sleeve 12 then pushes the thrust bearing 13 and the linkage sleeve 9 to slide along the moving rod 10. The linkage sleeve 9 then pushes the sliding block 7 to move, causing the sliding block 7 to drive the sliding plate 8 to slide along the sliding groove 6. The sliding plate 8 then drives the sliding block 7 to converge inwards, causing the sliding block 7 to drive the linkage plate 31 to slide inwards along the linkage groove 30. The sliding block 7 then drives the top spring 27 and the top block 28 to converge inwards, causing the top block 28 to abut together. The sliding block 7, in conjunction with the top block 28, compresses the top spring 27, changing the gap of the top spring 27. Combined with the movement of the sliding block 7, this causes a change in the flow area in the airflow pipe 3 and the liquid flow pipe 4, achieving... To achieve the purpose of adjusting the flow rate, once the flow rate is appropriately adjusted, stop rotating the rotating sleeve 5. This allows the locking rail 26 and locking groove 25 to engage, driving the locking block 21 and locking wheel 29 to rotate between the corresponding two stop blocks 22. Then, the locking spring 20 resets, pulling the locking block 21 to slide the locking wheel 29 inward along the locking rail 26 and locking groove 25, causing the locking wheel 29 to engage between the corresponding two stop blocks 22. Next, rotate the control plate 15 forward again, causing the control plate 15 to again drive the control groove 16 and control hole 17 to rotate forward. When the control hole 17 rotates again to a position concentric with the shift plate 19, the shift spring 24 resets, pushing the locking sleeve 14 to slide back to its original position. The locking sleeve 14, through the shift rod 18, drives the two shift plates 19 to slide back to their original positions.After the shift spring 24 is fully reset, the shift plate 19 at the top of the shift rod 18 moves back to the original side of the control plate 15. The control plate 15 is then rotated again, causing the control hole 17 and control groove 16 to rotate to a position not corresponding to the shift rod 18 and shift plate 19. Then, the shift rod 18 and the shift plate 19 at its end cooperate to support and limit the locking sleeve 14 to one side of the control plate 15, preventing the locking sleeve 14 from easily sliding. The inner wall of the locking sleeve 14 then limits the outer wall of the locking wheel 29, preventing the locking wheel 29 and locking block 21 from sliding outwards. This achieves rotational limitation on the rotating sleeve 5, preventing it from rotating and ensuring structural stability after flow rate adjustment, thus ensuring stable operation of the nozzle 1.

[0040] In summary, during the use or operation of the overall equipment: the complete working process of the dual-fluid fine water mist nozzle 1 begins with the delivery of both gas and liquid media to the device through connecting pipes. Compressed air enters one end of the confluence chamber 2 via the airflow pipe 3, while liquid is simultaneously delivered to the confluence chamber 2 via the liquid flow pipe 4 connected to the side of the confluence chamber 2. The two fluids meet for the first time in the confluence chamber 2 and undergo preliminary mixing. At this point, the high-speed airflow begins to exert a strong shearing effect on the liquid, breaking down the liquid's surface tension and causing it to break into larger droplets, completing the initial atomization process. This gas-liquid mixture then flows from the confluence chamber 2 to the main body of the nozzle 1 connected to it. Inside the mixing chamber of the nozzle 1, the gas and liquid two-phase fluids are further and thoroughly mixed. Under the continuous shearing and turbulence of the high-speed airflow, the droplets are further broken and refined, forming uniformly distributed micro-droplets. The mixed gas and liquid two-phase fluids are accelerated within the nozzle 1 and ejected through a specially designed nozzle structure, where secondary atomization occurs, ultimately producing a fine water mist.

[0041] When the conveying speed of the liquid pipe 4 or the gas pipe 3 needs to be adjusted according to actual requirements, firstly, rotate the control plate 15 in the forward direction, causing the control hole 17 and the control groove 16 to rotate in the forward direction. When the control hole 17 rotates to a position concentric with the shift plate 19, push the locking sleeve 14, causing the locking sleeve 14 to drive the shift rod 18 and the shift plate 19 to slide through the shift hole, and causing the locking sleeve 14 and the control plate 15 to cooperate in pressing the shift spring 24. When the shift spring 24 is pressed to its limit, one of the shift plates 19 near the locking sleeve 14 just passes through the control hole 17 and moves to the other side of the control plate 15. Then, rotate the control plate 15 in the reverse direction, causing the control hole 17 and the control groove 16 to rotate in the opposite direction, so that the shift... Rod 18 enters the control slot 16. Then, the shifting rod 18, in conjunction with a shifting plate 19 near the locking sleeve 14, limits the locking sleeve 14 to one side of the control plate 15. The locking sleeve 14 then no longer limits the locking wheel 29. The rotating sleeve 5 then rotates forward. The rotating sleeve 5, through the locking rail 26 on one side and the locking groove 25, drives the locking block 21 and the locking wheel 29 to rotate. The locking wheel 29 then rolls out between the two stop blocks 22, and the locking wheel 29 drives the locking block 21 to slide outward along the locking rail 26 and the locking groove 25. The locking block 21 then drives the locking spring 20 to stretch outward. Simultaneously, the rotating sleeve 5 drives the inner moving rod 10 to rotate. The moving rod 10 then drives the mating sleeve 12 to rotate forward through the moving sleeve 11. The movement is caused by the outer wall of the fitting sleeve 12 being connected to the inner walls of the airflow pipe 3 and the liquid flow pipe 4 via threads. The fitting sleeve 12 then pushes the thrust bearing 13 and the linkage sleeve 9 to slide along the moving rod 10. The linkage sleeve 9 then pushes the sliding block 7 to move, causing the sliding block 7 to drive the sliding plate 8 to slide along the sliding groove 6. The sliding plate 8 then drives the sliding block 7 to converge inwards, causing the sliding block 7 to drive the linkage plate 31 to slide inwards along the linkage groove 30. The sliding block 7 then drives the top spring 27 and the top block 28 to converge inwards, causing the top block 28 to abut against each other. The sliding block 7, in conjunction with the top block 28, compresses the top spring 27, changing the gap of the top spring 27. Combined with the movement of the sliding block 7, this causes a change in the flow area in the airflow pipe 3 and the liquid flow pipe 4, achieving... The purpose of adjusting the flow rate is to stop rotating the rotating sleeve 5 after the flow rate is properly adjusted, so that the locking rail 26 and locking groove 25 cooperate to drive the locking block 21 and locking wheel 29 to rotate between the corresponding two stop blocks 22. Then, the locking spring 20 resets and pulls the locking block 21 to drive the locking wheel 29 to slide inward along the locking rail 26 and locking groove 25, so that the locking wheel 29 is engaged between the corresponding two stop blocks 22. Then, the control plate 15 is rotated forward again, so that the control plate 15 drives the control groove 16 and control hole 17 to rotate forward again. When the control hole 17 rotates to the position concentric with the shift plate 19 again, the shift spring 24 resets and pushes the locking sleeve 14 to slide back to its original position. The locking sleeve 14 drives the two shift plates 19 to slide back to their original position through the shift rod 18.After the shift spring 24 is fully reset, the shift plate 19 at the top of the shift rod 18 moves back to the original side of the control plate 15. The control plate 15 is then rotated again, causing the control hole 17 and control groove 16 to rotate to a position not corresponding to the shift rod 18 and shift plate 19. Then, the shift rod 18 and the shift plate 19 at its end cooperate to support and limit the locking sleeve 14 to one side of the control plate 15, preventing the locking sleeve 14 from easily sliding. The inner wall of the locking sleeve 14 then limits the outer wall of the locking wheel 29, preventing the locking wheel 29 and locking block 21 from sliding outwards. This achieves rotational limitation on the rotating sleeve 5, preventing it from rotating and ensuring structural stability after flow rate adjustment, thus ensuring stable operation of the nozzle 1.

[0042] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dual-fluid fine water mist nozzle, comprising a nozzle (1), one end of the nozzle (1) being connected to a confluence chamber (2), one end of the confluence chamber (2) being connected to an airflow pipe (3), and one side of the confluence chamber (2) being connected to a liquid flow pipe (4), characterized in that: Speed ​​regulating devices are provided at one end of the airflow pipe (3) and the liquid flow pipe (4). The speed regulating devices include a rotating sleeve (5), a sliding groove (6), a sliding block (7), a sliding plate (8), a linkage sleeve (9), a moving rod (10), a moving sleeve (11), a mating sleeve (12), and a thrust bearing (13). The sliding groove (6) is inclinedly opened in the liquid flow pipe (4) and the airflow pipe (3). The sliding block (7) is connected to one side of the sliding plate (8). The thrust bearing (13) is connected to the linkage sleeve (9) and the mating sleeve (12) respectively. The moving sleeve (11) is sleeved on the outside of the moving rod (10). The outer wall of the mating sleeve (12) is connected to the inner wall of the liquid flow pipe (4) and the airflow pipe (3) respectively by threads. (4) and the outside of the airflow pipe (3) are provided with a locking mechanism. The locking mechanism includes a locking sleeve (14), a control plate (15), a control groove (16), a control hole (17), a shift rod (18), a shift plate (19), a locking spring (20), a locking block (21) and a stop block (22). The control groove (16) is opened on the control plate (15), the control hole (17) is opened at one end of the control groove (16), the shift rod (18) is connected to one side of the locking sleeve (14), the shift plate (19) is installed on the shift rod (18), the locking spring (20) is connected to two adjacent locking blocks (21), and multiple stop blocks (22) are respectively installed on the outside of the liquid flow pipe (4) and the airflow pipe (3).

2. The dual-fluid fine water mist nozzle according to claim 1, characterized in that: The rotating sleeve (5) is provided with an input tube (23) on one side, and the rotating sleeve (5) is rotatably connected to the output end of the input tube (23).

3. A dual-fluid fine water mist nozzle according to any one of claims 1 or 2, characterized in that: A shift spring (24) is movably provided on the outside of the shift rod (18). One end of the shift spring (24) is connected to the locking sleeve (14), and the other end of the shift spring (24) is connected to the control plate (15) in a contact manner.

4. A dual-fluid fine water mist nozzle according to claim 3, characterized in that: The locking block (21) has a locking groove (25), and a plurality of locking rails (26) are connected to one side of the rotating sleeve (5). The locking groove (25) is adapted to the locking rails (26).

5. A dual-fluid fine water mist nozzle according to claim 4, characterized in that: A top spring (27) is connected to one side of the sliding block (7), and a top block (28) is connected to the other end of the top spring (27).

6. A dual-fluid fine water mist nozzle according to claim 5, characterized in that: The locking block (21) has a locking wheel (29) on one side that rotates, and the locking block (21) is engaged between two stop blocks (22).

7. A dual-fluid fine water mist nozzle according to claim 1, characterized in that: The linkage sleeve (9) has a linkage groove (30) on one side, and the sliding block (7) is connected to a linkage plate (31) on one side. The linkage groove (30) and the linkage plate (31) are adapted to each other.

8. A dual-fluid fine water mist nozzle according to claim 7, characterized in that: The cross-sections of the outer wall of the movable rod (10) and the inner wall of the movable sleeve (11) are both prismatic.

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