Electric heating starting valve and atomizing nozzle using same

Abstract

The electric heating starting valve comprises a valve body, a valve element and an electric heating starting assembly, the valve body comprises an inlet, an outlet and a connector which are communicated with one another, the inlet and the connector are oppositely arranged, the outlet is formed in the peripheral side of the valve body, the connector is connected with the electric heating starting assembly, and the valve element is a variable-diameter rod. The valve core is arranged in a through passage of the inlet and the interface of the valve body and is movably matched with the inner wall of the valve body to form a blocking structure for blocking or communicating the inlet and the outlet, the rod diameter of the valve core close to the interface is smaller than that of the valve core close to the inlet, and the variable-diameter positions of the valve core and the inlet are in slope transition. And rapid reaction in various modes is realized, the fire extinguishing agent is uniformly atomized, and rapid and effective fire extinguishing is realized.

Description

Technical Field

[0001] The utility model relates to the field of fire protection and protection facilities, in particular to an electric thermal start valve and an atomizing nozzle using the valve. Background Art

[0002] Fire sprinklers are fire-fighting equipment installed on fire extinguishing systems or fire extinguishing devices to seal and spray fire extinguishing agents to extinguish fires. Existing sprinkler activation usually uses a temperature-sensitive glass ball to passively activate according to the surrounding heat. The method is single and the response time is slow. It is difficult to extinguish the fire source in the early stage of the fire, causing serious economic losses and accidents. At the same time, the existing temperature sensing device needs to be set on the fire extinguishing agent spraying path, which reduces the spraying effect of the fire extinguishing agent. In addition, most sprinklers use splash plate sprinklers, which have poor liquid breakage effect, resulting in uneven spraying, affecting the fire extinguishing effect. Utility Model Content

[0003] In order to solve the above technical problems, the utility model discloses an electric thermal start valve, which comprises a valve body, a valve core and an electric thermal start component. The valve body comprises an inlet, an outlet and an interface which are interconnected. The inlet and the interface are arranged opposite to each other, the outlet is arranged on the peripheral side of the valve body, the interface is connected to the electric thermal start component, the valve core is a reducing rod, and is arranged in a through passage between the inlet and the interface of the valve body, and cooperates with the inner wall of the valve body to form a blocking structure for blocking or connecting the inlet and outlet passages. The rod diameter of the valve core close to the interface is smaller than the rod diameter close to the inlet, and the diameter change portion of the two forms a slope transition. The electric thermal start component comprises a bracket, a plugging joint and a starter. A bayonet which is docked with the interface is provided on the bracket. The bayonet has a space for a thinner end of the valve core to pass through and can clamp the diameter change position, and a limiting structure which blocks the valve core from moving toward the interface is formed on the bracket. The plugging joint and the starter are installed on the bracket, and the two ends of the plugging joint respectively abut against the valve core and the starter to form a holding structure in which the valve core, the plugging joint and the starter support each other.

[0004] Specifically, grooves are provided on the stem wall of the valve core near the inlet and the inner wall of the valve body near the interface, and a first sealing ring and a second sealing ring are installed respectively. The second sealing ring protrudes from the groove and forms a bulge on the moving path of the valve core. The second sealing ring moves through the valve core and drives the second sealing ring to fall off, forming a buffer structure between the valve core and the bayonet.

[0005] Specifically, the starter includes a temperature-sensitive glass bead and an electric heating tube, the electric heating tube includes a heating wire and a protective cover covering the heating wire, the electric heating tube is sleeved in the middle of the temperature-sensitive glass bead and the temperature-sensitive glass bead has exposed sections at both ends.

[0006] Specifically, the plugging joint is arranged on a side of the bayonet away from the valve core, the plugging joint is provided with a base, a slot is provided on the base facing the bayonet and a third sealing ring is installed, and the plugging joint abuts against the bayonet through the third sealing ring.

[0007] Specifically, the side where the base abuts the temperature-sensitive glass bead has an arc surface that adapts to the shape of the end of the temperature-sensitive glass bead, a blind hole is opened at the center of the arc surface on the base, and an adjusting bolt is arranged at the bottom of the bracket. The adjusting bolt and the plugging joint are arranged opposite to each other and the two clamp the temperature-sensitive glass bead, forming an adjustable mechanism in which the axes of the plugging joint, the temperature-sensitive glass bead and the adjusting bolt are aligned after the three are abutted.

[0008] The utility model also discloses an atomizing nozzle using an electric starting valve, which includes an atomizing nozzle, the atomizing nozzle including a nozzle body and a swirl core, the nozzle body is provided with an inlet and an outlet and the two are connected through a cavity, the inlet is connected to the outlet, the swirl core is a spiral structure, the swirl core is arranged in a cavity close to the inlet, and a centrifugal section is formed in the cavity, and an atomizing section is formed between the swirl core and the outlet in the cavity.

[0009] Specifically, the inner wall of the cavity is stepped, and the inner diameter of the atomization section in the cavity is larger than the inner diameter of the centrifugal section.

[0010] Specifically, flow channels are formed between the spiral structure of the swirl core and the inner wall of the cavity, and the number of the flow channels is greater than or equal to , and a gap is opened at the bottom of the swirl core corresponding to the flow channel to form a diversion structure in which water flows intersect each other.

[0011] Specifically, it also includes an adapter, which is a bent tubular structure, one end of the adapter is connected to the inlet, and the other end is rotatably connected to the outlet of the valve body.

[0012] Advantages

[0013] The utility model separates the electric starting component from the outlet to prevent the device from blocking the discharge of the fire extinguishing agent, thereby improving the fire extinguishing effect; through the variable diameter structure of the valve core, the air in the bottom of the valve body is discharged smoothly after starting, so that the valve core can quickly reach the specified position, thereby improving the spraying effect of the fire extinguishing agent; through the sealing ring abutting the valve core and the bayonet, the impact force of the valve core is buffered, thereby improving the reliability of the device; through the arrangement of the electric starting component, various starting modes such as temperature-sensing automatic starting, electrical automatic starting, and manual starting are realized; through the arrangement of the centrifugal section and the atomizing section of the atomizing nozzle, the fire extinguishing agent is quickly and evenly atomized, thereby realizing rapid and effective fire extinguishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is one of the structural schematic diagrams of the electric thermal start valve of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the electric thermal starting component of the utility model;

[0016] Figure 3 This is the second structural schematic diagram of the electric heat start valve of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the atomizing nozzle of the utility model;

[0018] Figure 5 The utility model is a schematic diagram of the structure of an atomizing nozzle using an electric heat start valve.

[0019] Legend: 1. Valve body; 11. Inlet; 12. Outlet; 13. Interface; 14. Second sealing ring; 2. Valve core; 21. First sealing ring; 3. Electric starting assembly; 31. Bracket; 311. Bayonet; 312. Adjusting bolt; 32. Plug; 321. Base; 322. Third sealing ring; 33. Starter; 331. Temperature-sensitive glass beads; 332. Electric heating tube; 3321. Electric heating wire; 3322. Protective cover; 4. Atomizing nozzle; 41. Nozzle body; 411. Inlet; 412. Cavity; 4121. Centrifugal section; 4122. Atomizing section; 413. Outlet; 42. Rotary core; 422. Notch; 5. Adapter. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the embodiments, but is not limited to the contents of the specification.

[0021] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. is to distinguish different objects rather than to describe a specific order.

[0022] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the specific protection scope of the utility model.

[0023] In the claims, specification and the above drawings of the utility model, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0024] In the claims, specification and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0025] like Figure 1-Figure 3 As shown, the utility model relates to an electric thermal start valve, which includes a valve body 1, a valve core 2 and an electric thermal start component 3. The valve body 1 includes an inlet 11, an outlet 12 and an interface 13 that are interconnected. The inlet 11 is connected to a fire extinguishing agent, and the outlet 12 is connected to a spraying device. Preferably, the valve body 1 adopts a three-way hollow cavity, the inlet 11 and the interface 13 are arranged opposite to each other, the outlet 12 is arranged on the periphery of the valve body 1, the interface 13 is connected to the electric thermal start component 3, the valve core 2 is a rod-shaped structure, and the valve core 2 is arranged at the inlet 11 of the valve body 1 and the interface 13 The valve core 2 is in the through passage and cooperates with the inner wall of the valve body 1 to form a blocking structure that blocks or connects the inlet 11 and the outlet 12. The valve core 2 cooperates with the inner wall of the valve body 1 to limit and move in the valve body 1. When the valve core 2 is close to the inlet 11, the inlet 11 is blocked, and the fire extinguishing agent at the inlet 11 is blocked from flowing out. When the valve core 2 moves toward the interface 13, the inlet 11 and the outlet 12 are connected, and the fire extinguishing agent flows from the inlet 11 to the outlet 12 for spraying. At the same time, the valve core 2 is at one end of the interface 13 to prevent the fire extinguishing agent from flowing out of the interface 13.

[0026] The rod diameter of the valve core 2 near the interface 13 is smaller than the rod diameter near the inlet 11, and the diameter change portion is a slope transition. The electric thermal starting assembly 3 includes a bracket 31, a plug joint 32 and a starter 33. The bracket 31 is provided with a bayonet 311 that is docked with the interface 13. The top of the bracket 31 is connected to the interface 13 of the valve body 1. The bayonet 311 has a space for the thinner end of the valve core 2 to pass through and can clamp the diameter change position, and a limiting structure is formed on the bracket 31 to block the valve core 2 from moving toward the interface 13. When the valve core 2 moves downward, the thinner end of the bottom of the valve core 2 passes through After passing through the bayonet 311, the valve core 2 moves toward the interface 13. At the same time, the bayonet 311 clamps the valve core 2 at the reduced diameter position, so that the valve core 2 blocks the interface 13 to prevent leakage of the fire extinguishing agent. The transition position of the valve core 2 rod diameter is set as a slope, so that after the valve core 2 clamps the bayonet 311, a gap is left between the valve core 2 and the bayonet 311, and the contact area between the valve core 2 and the bayonet 311 is small, which prevents the valve core 2 from falling quickly. The air in the bottom of the valve body 1 is not immediately discharged, resulting in the valve core 2 being unable to quickly reach the specified clamping position, resulting in insufficient release of the fire extinguishing agent or difficulty in spraying it out.

[0027] The top of the bracket 31 adapts to the shape of the interface 13 of the valve body 1 and is connected to the valve body 1. The bottom of the bracket 31 is an open structure, which fixes the starter 33 in a ring shape. When a fire occurs, it is convenient for the starter 33 to contact the external temperature and for the plugging joint 32 to separate from the bracket 31 after startup. The two ends of the plugging joint 32 respectively abut the valve core 2 and the starter 33, forming a holding structure in which the valve core 2, the plugging joint 32 and the starter 33 support each other. When there is no fire, the electric starting component 3 provides support for the valve core 2, balances the pressure of the fire extinguishing agent at the inlet 11 end, and the valve core 2 blocks the fire extinguishing agent; when a fire occurs, the starter 33 starts quickly after being energized. Preferably, the starter 33 is damaged by temperature, the plugging joint 32 loses support and is pushed out by the valve core 2 and separates from the bracket 31, and the valve core 2 moves toward the interface 13, and the fire extinguishing agent passages of the inlet 11 and the outlet 12 are connected and the fire extinguishing agent is released.

[0028] like Figure 1 , Figure 3 As shown, grooves are provided on the stem wall of the valve core 2 near the inlet 11 and the inner wall of the valve body 1 near the interface 13, and the first sealing ring 21 and the second sealing ring 14 are respectively installed. The first sealing ring 21 is arranged at the end of the valve core 2 to prevent the fire extinguishing agent from leaking from the gap when the valve core 2 blocks the inlet 11. The second sealing ring 14 protrudes from the groove and is installed on the inner wall of the valve body 1 near the interface 13. The second sealing ring 14 forms a bulge on the moving path of the valve core 2. The second sealing ring 14 moves through the valve core 2 and drives the second sealing ring 14 to fall off, forming a buffer structure between the valve core 2 and the bayonet 311, and the valve core 2 abuts against the electric thermal starting component 3 When the inlet 11 is blocked, the second sealing ring 14 is located below the variable diameter position of the valve core 2. When a fire occurs, the starter 33 starts the valve core 2 to move downward, and during the movement, the variable diameter position will contact the second sealing ring 14, causing it to disengage from the groove and move downward with the drive of the valve core 2, and finally abut against the valve core 2 and the bayonet 311, and buffer the impact force of the valve core 2 on the bracket 31, reducing damage to the electric starting component 3; at the same time, the annular structure of the second sealing ring 14 can also clamp the gap between the valve core 2 and the bayonet 311, and cooperate with the first sealing ring 21 on the top of the valve core 2 to seal the interface 13 end to prevent leakage of the fire extinguishing agent.

[0029] like Figure 2As shown, the starter 33 includes a temperature-sensitive glass bead 331 and an electric heating tube 332. The electric heating tube 332 includes a heating wire 3321 and a protective sleeve 3322 covering the heating wire 3321. The heating tube 332 is sleeved in the middle of the temperature-sensitive glass bead 331 and the temperature-sensitive glass bead 331 has exposed sections at both ends. The heating wire 3321 is connected to a response device and receives an external signal to be energized for heating. When a fire occurs, the external control system senses the fire source or is actively controlled to energize it. The protective sleeve 3322 is made of heat-insulating material, so that the heat accumulates quickly after the resistance wire 3321 is heated, and the sensing wire 3321 is heated in a short time. The liquid in the temperature-sensitive glass bead 331 expands and bursts; in addition to controlling the start-up by electric heating, the temperature-sensitive glass bead 331 has exposed sections at both ends that can come into contact with the outside air to prevent the starter 33 from failing to start when the control system fails to respond in time. Even if the control system does not respond to the start-up immediately, the starter 33 can be activated by the surrounding high-temperature smoke, and the temperature-sensitive glass bead 331 bursts due to the heat. At the same time, the starter 33 instantly bounces off the bracket 31. At this time, the lower end of the valve core 2 loses its supporting force, and under the pressure of the top fire extinguishing agent, the plugging joint 32 is pushed down to connect the fire extinguishing agent passage.

[0030] The plugging joint 32 is arranged on a side of the bayonet 311 away from the valve core 2. The plugging joint 32 is provided with a base 321. The base 321 has a slot facing the bayonet 311 and is installed with a third sealing ring 322. The plugging joint 32 abuts against the bayonet 311 through the third sealing ring 322. The base 321 is provided to facilitate adjustment of the position of the plugging joint 32 so that the top is aligned with the valve core 2 to avoid the force direction being offset and stuck in the bracket 31 after startup. The third sealing ring 322 can not only seal the pipeline in the valve body 1, but also play a buffering role when installing the plugging joint 32 and the temperature-sensitive glass bead 331, thereby avoiding damage to the temperature-sensitive glass bead caused by uneven manual force.

[0031] The side where the base 321 abuts against the temperature-sensitive glass bead 331 has an arc surface 3211 that adapts to the shape of the end of the temperature-sensitive glass bead 331. A blind hole 3212 is provided at the center of the arc surface 3211 on the base 321. An adjusting bolt 312 is provided at the bottom of the bracket 31 to form an adjustable mechanism for aligning the axes of the plug 32 and the temperature-sensitive glass bead 331 after they abut against each other. When the temperature-sensitive glass bead 331 is manually installed, one end of the glass bead is pressed against the arc surface 3211 area, and the other end is slowly applied with force through the adjusting bolt 312. Due to the arc surface 3211 and the blind hole 3212, the end of the temperature-sensitive glass bead 331 can adapt to the shape of the arc surface 3211 and align itself during the adjustment process, which is convenient for installation and replacement.

[0032] like Figure 4 , Figure 5As shown, the utility model also relates to an atomizing nozzle using an electric heat start valve, which includes an atomizing nozzle 4, the atomizing nozzle 4 includes a nozzle body 41 and a swirl core 42, the nozzle body 41 is provided with an inlet 411 and an outlet 413 and the two are connected through a cavity 412, the inlet 411 is connected to the outlet 12, when the electric heat start valve is started, the fire extinguishing agent is sprayed through the outlet 12 of the valve body 1, the cavity 412 of the inlet 411 to the outlet 413, the swirl core 42 is a symmetrical spiral structure, and the swirl core 42 is arranged in the cavity 412 near the inlet 411 to form a cavity The centrifugal section 4121 of the cavity 412 forms an atomizing section 4122 between the atomizing core 42 and the outlet 413 in the cavity 412. The swirl core 42 is fixed in the centrifugal section 4121. When the fire extinguishing agent passes through the swirl core 42, the path becomes narrower and flows in a spiral shape. After passing through the centrifugal section 4121, it is accelerated and rotated centrifugally, and then collides with the inner wall of the cavity 412 in the atomizing section 4122, and the liquids collide and break with each other, and are quickly and fully atomized to form fine droplets, which are finally sprayed out through the outlet 413. The atomized fire extinguishing agent covers a wide and uniform area, thereby achieving rapid cooling and fire extinguishing.

[0033] Preferably, the outlet 413 adopts a conical opening, and the size and angle of the conical opening are adjusted according to different fire sources to control the spraying range of the fire extinguishing agent.

[0034] like Figure 4 As shown, the inner wall of the cavity 412 is stepped, and the inner diameter of the atomizing section 4122 in the cavity 412 is larger than the inner diameter of the centrifugal section 4121. Since the inner diameter is narrower, the flow rate of the fire extinguishing agent increases, and after high-speed centrifugation in the centrifugal section 4121, the fire extinguishing agent enters the atomizing section 4122 with a larger diameter and is fully collided and broken. Due to the high speed and the large gap between the atomizing sections 412, the fire extinguishing agent avoids mutual aggregation of droplets, resulting in a better atomization effect.

[0035] A flow channel 421 is formed between the spiral structure of the swirl core 42 and the inner wall of the cavity 412. The number of the flow channels 421 is greater than or equal to 2. A notch 422 is provided at the bottom of the swirl core 42 corresponding to the flow channel 421 to form a diversion structure in which water flows intersect with each other. In the present application, a partition plate is used to divide the flow channel 421 of the swirl core 42 into two streams. The fire extinguishing agent is diverted and centrifuged through the top of the swirl core 42. At the bottom of the swirl core 42, it not only collides with the surrounding inner wall, but also, due to the notch 422, the angle of the water flow after flowing out of the swirl core 422 is expanded, so that the two water flows intersect and collide at the first time, and continue to be quickly atomized in the atomization section 4122 with the water pressure, so that the size of the sprayed droplets is uniform, and the fire extinguishing effect is good.

[0036] It also includes an adapter 5, which is a bent tubular structure. One end of the adapter 5 is connected to the inlet 411, and the other end is rotatably connected to the outlet 12 of the valve body 1. The adapter 5 can be connected and communicated with each other using one or more internal and external thread elbows, or a rotating structure such as a spherical joint to adjust the spraying angle of the atomizing nozzle 4, so as to quickly and accurately spray the fire extinguishing agent on the flammable materials in the area or the key protection area.

[0037] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the embodiments of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the embodiments here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. An electrically-activated valve, characterized in that: It comprises a valve body (1), a valve core (2) and an electric thermal start component (3); the valve body (1) comprises an inlet (11), an outlet (12) and an interface (13) which are interconnected; the inlet (11) and the interface (13) are arranged opposite to each other; the outlet (12) is arranged on the peripheral side of the valve body (1); the interface (13) is connected to the electric thermal start component (3); the valve core (2) is a variable diameter rod, and is arranged in a through passage between the inlet (11) and the interface (13) of the valve body (1), and is movably matched with the inner wall of the valve body (1) to form a blocking structure for blocking or connecting the inlet (11) and the outlet (12) passages; the diameter of the valve core (2) near the interface (13) is smaller than the diameter of the valve core (2) near the inlet (11), and the two are The diameter change position presents a slope transition. The electric thermal starting assembly (3) comprises a bracket (31), a plugging joint (32) and a starter (33). The bracket (31) is provided with a bayonet (311) that is docked with the interface (13). The bayonet (311) has a space for the thinner end of the valve core (2) to pass through and can hold the diameter change position. A limiting structure is formed on the bracket (31) to block the valve core (2) from moving toward the interface (13). The plugging joint (32) and the starter (33) are mounted on the bracket (31). The two ends of the plugging joint (32) respectively abut against the valve core (2) and the starter (33), forming a force-holding structure in which the valve core (2), the plugging joint (32) and the starter (33) support each other.

2. According to the electric starting valve of claim 1, a groove is provided on the stem wall of the valve core (2) close to the inlet (11) and the inner wall of the valve body (1) close to the interface (13), and a first sealing ring (21) and a second sealing ring (14) are respectively installed thereon, and the second sealing ring (14) protrudes from the groove and forms a bulge on the moving path of the valve core (2). The second sealing ring (14) moves through the valve core (2) and drives the second sealing ring (14) to fall off, thereby forming a buffer structure between the valve core (2) and the bayonet (311).

3. The electrically-actuated valve according to claim 2, characterized in that: The starter (33) comprises a temperature-sensitive glass bead (331) and an electric heating tube (332), wherein the electric heating tube (332) comprises a heating wire (3321) and a protective sleeve (3322) covering the heating wire (3321), wherein the electric heating tube (332) is sleeved in the middle of the temperature-sensitive glass bead (331), and the temperature-sensitive glass bead (331) has exposed sections at both ends.

4. The electrically-activated valve according to claim 3, characterized in that: The plugging joint (32) is arranged on a side of the bayonet (311) away from the valve core (2), and the plugging joint (32) is provided with a base (321). The base (321) is provided with a slot facing the bayonet (311) and is installed with a third sealing ring (322). The plugging joint (32) is in contact with the bayonet (311) via the third sealing ring (322).

5. The electrically-activated valve according to claim 4, characterized in that: The base (321) has an arc surface (3211) adapted to the shape of the end of the temperature-sensitive glass bead (331) on one side where it abuts against the temperature-sensitive glass bead (331); a blind hole (3212) is provided at the center of the arc surface (3211) on the base (321); an adjusting bolt (312) is provided at the bottom of the bracket (31); the adjusting bolt (312) and the plugging joint (32) are arranged opposite to each other and the two clamp the temperature-sensitive glass bead (331), thereby forming an adjustable mechanism in which the plugging joint (32), the temperature-sensitive glass bead (331) and the adjusting bolt (312) are aligned in their axes after abutting against each other.

6. An atomizing nozzle using the electric thermal start valve according to claims 1-5, characterized in that: The invention comprises an atomizing nozzle (4), wherein the atomizing nozzle (4) comprises a nozzle body (41) and a swirl core (42); the nozzle body (41) is provided with an inlet (411) and an outlet (413) which are connected via a cavity (412); the inlet (411) is connected to an outlet (12); the swirl core (42) is a spiral structure; the swirl core (42) is arranged in a cavity (412) close to the inlet (411) and forms a centrifugal section (4121) in the cavity (412); and an atomizing section (4122) is formed between the swirl core (42) and the outlet (413) in the cavity (412).

7. The atomizing nozzle according to claim 6, characterized in that: The inner wall of the cavity (412) is stepped, and the inner diameter of the atomization section (4122) in the cavity (412) is greater than the inner diameter of the centrifugal section (4121).

8. The atomizing nozzle according to claim 6, characterized in that: A flow channel (421) is formed between the spiral structure of the swirl core (42) and the inner wall of the cavity (412), the number of the flow channels (421) being greater than or equal to 2, and a notch (422) is provided at the bottom of the swirl core (42) corresponding to the flow channel (421) to form a diversion structure in which water flows intersect each other.

9. The atomizing nozzle according to claim 6, characterized in that: It also includes an adapter (5), which is a bent tubular structure. One end of the adapter (5) is connected to the inlet (411), and the other end is rotatably connected to the outlet (12) of the valve body (1).

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