Atomizing nozzle device

Abstract

The utility model relates to an atomizing nozzle device, and in particular to an atomizing nozzle device capable of controlling the amount of liquid inlet according to the amount of air inlet, comprising a valve body and a first piston, the valve body being provided with an inner cavity, a first flow channel and a second flow channel; an air inlet, a liquid inlet and a mist outlet are connected to the inner cavity, one end of the first flow channel is connected to the air inlet, the other end of the first flow channel is connected to the second flow channel, the first piston is slidably connected to the second flow channel, the second flow channel is connected to the liquid inlet, and the first piston slides up and down in the second flow channel to change the cross-sectional area of ​​the connection between the liquid inlet and the inner cavity, thereby controlling the amount of liquid inlet. The atomizing nozzle device disclosed by the utility model can keep the air inlet and the liquid inlet consistent, thereby ensuring the spray effect.

Description

Technical Field

[0001] The utility model relates to the field of atomizing nozzle devices, in particular to an atomizing nozzle device capable of controlling a liquid intake amount according to an air intake amount. Background Art

[0002] Atomizing nozzle is a device that converts liquid into fine droplets. It is a common atomizing nozzle. The working principle of atomizing nozzle can be found in the Chinese invention patent with publication number CN109909086A, entitled A gas-liquid two-flow atomizing nozzle and its design method. This nozzle is generally provided with an air inlet, a liquid inlet and a droplet outlet. The liquid inlet is atomized by high-pressure gas. A common disadvantage of existing atomizing nozzles is that the mismatch between the air intake and the liquid intake will affect the formation effect of the droplets. If the air intake is greater than the liquid intake, the water content of the formed mist is too low; if the air intake is less than the liquid intake, it is difficult to form an atomization effect.

[0003] Based on this, it is necessary to improve the existing equipment so that the liquid intake and the air intake are balanced with each other. Utility Model Content

[0004] Technical purpose: In order to overcome the deficiencies in the prior art, the utility model provides an atomizing nozzle device.

[0005] Technical solution: To achieve the above-mentioned purpose, the utility model discloses an atomizing nozzle device, including a valve body and a first piston, the valve body is provided with an inner cavity, a first flow channel and a second flow channel; an air inlet, a liquid inlet and a mist outlet are connected to the inner cavity, one end of the first flow channel is connected to the air inlet, the other end of the first flow channel is connected to the second flow channel, the first piston is slidably connected to the second flow channel, the second flow channel is connected to the liquid inlet, and the first piston slides up and down in the second flow channel to change the connecting cross-sectional area between the liquid inlet and the inner cavity, thereby controlling the liquid inlet amount.

[0006] Furthermore, the air inlet and the liquid inlet are staggered with each other in the axial direction, the liquid inlet and the air inlet extend in the radial direction of the valve body, the first flow channel extends in the circumferential direction of the valve body, and the second flow channel extends in the axial direction of the valve body.

[0007] Furthermore, a spring is arranged below the first piston, a limiting flange is arranged in the second flow channel, the limiting flange is arranged above the first piston, and the first piston is provided with a waist-shaped hole; when the spring is in a natural state, the waist-shaped hole and the liquid inlet are staggered from each other, and when the first piston presses the spring downward to the limit state, the waist-shaped hole and the liquid inlet are aligned with each other.

[0008] Furthermore, a top plug is provided below the spring, and the top plug is screwed to the valve body.

[0009] Furthermore, the inner cavity is provided with a second piston, and the second piston can completely close or completely open the mist outlet.

[0010] Furthermore, a valve cover is connected above the valve body, a connecting rod is screwed onto the valve cover, and a terminal end of the connecting rod is fixedly connected to the second piston.

[0011] Furthermore, one end of the valve body close to the mist outlet is provided with an external thread for connecting to a valve cap.

[0012] The atomizing nozzle device of the utility model has at least the following beneficial effects:

[0013] The device adds a design of the first piston. When the air intake gradually increases, the first piston moves downward to increase the cross-sectional area of ​​the connection between the liquid inlet and the inner cavity, thereby increasing the liquid intake; when the air intake decreases, the first piston moves upward under the action of the spring to reduce the cross-sectional area of ​​the connection between the liquid inlet and the inner cavity, thereby reducing the liquid intake. Based on this, the liquid intake and air intake are always matched, thereby ensuring the atomization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural sectional view of the utility model.

[0016] In the figure, 1. valve body; 2. first piston; 3. inner cavity; 4. first flow channel; 5. second flow channel; 6. air inlet; 7. liquid inlet; 8. mist outlet; 9. spring; 10. limit flange; 11. waist-shaped hole; 12. top plug; 13. second piston; 14. valve cover; 15. connecting rod. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1 To Attachment Figure 2 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention.

[0018] An atomizing nozzle device comprises a valve body 1, a valve cover 14, a first piston 2, a second piston 13, a spring 9 and a top plug 12.

[0019] An inner cavity 3, a first flow channel 4 and a second flow channel 5 are provided in the valve body 1, and an air inlet 6, a liquid inlet 7 and a mist outlet 8 are connected to the inner cavity 3. The liquid inlet 7 and the air inlet 6 are disposed on both sides of the valve body 1 and are spaced 180° apart; the mist outlet 8 is disposed at the bottom of the valve body 1. The air inlet 6 and the liquid inlet 7 are staggered from each other in the axial direction, the air inlet 6 is disposed above the liquid inlet 7, the air inlet 6 and the liquid inlet 7 extend radially of the valve body 1, the first flow channel 4 extends circumferentially of the valve body 1, and the second flow channel 5 extends axially of the valve body 1. One end of the first flow channel 4 is connected to the air inlet 6, and the other end of the first flow channel 4 is connected to the second flow channel 5, and the second flow channel 5 is connected to the liquid inlet 7. The first piston 2 is made of rubber and is slidably connected to the second flow channel 5. The first piston 2 slides up and down in the second flow channel 5 to change the communicating cross-sectional area between the liquid inlet 7 and the inner cavity 3, thereby controlling the amount of liquid entering the inner cavity 3 from the liquid inlet 7. Specifically, a waist-shaped hole 11 is provided on the first piston 2; the larger the intersection of the waist-shaped hole 11 and the liquid inlet 7, the greater the amount of liquid inflow; the smaller the intersection of the waist-shaped hole 11 and the liquid inlet 7, the smaller the amount of liquid inflow. A spring 9 is provided below the first piston 2, and a top plug 12 is provided below the spring 9, and the top plug 12 is screwed to the valve body 1; a limiting flange 10 is provided above the second piston 13. In the initial state, no gas enters the air inlet 6, and the first piston 2 is pressed against the limiting flange 10 under the action of the spring 9. At this time, the waist-shaped hole 11 and the liquid inlet 7 are staggered from each other, so the liquid cannot enter the inner cavity 3 from the liquid inlet 7. When the pressure of the incoming gas gradually increases, that is, the amount of air intake increases, the gas presses the first piston 2 to move downward, causing the waist-shaped hole 11 and the liquid inlet 7 to gradually overlap, so the amount of liquid intake also gradually increases until the waist-shaped hole 11 and the liquid inlet 7 completely overlap. At this time, when the first piston 2 presses the spring 9 downward to the limit state, the amount of liquid intake reaches the maximum.

[0020] The second piston 13 is arranged in the inner cavity 3, and the second piston 13 can completely close or completely open the mist outlet 8. When the second piston 13 gradually approaches the mist outlet 8, the mist outlet 8 gradually becomes smaller; when the second piston 13 gradually moves away from the mist outlet 8, the mist outlet 8 gradually becomes larger. Therefore, the size of the mist outlet 8 can be controlled by adjusting the second piston 13, thereby controlling the shape of the sprayed water mist. Specifically, the valve cover 14 is connected to the valve body 1, the head end of the connecting rod 15 is connected to the valve cover 14, and the end of the connecting rod 15 is fixedly connected to the second piston 13. The relative position of the second piston 13 is adjusted by adjusting the connecting rod 15.

[0021] One end of the valve body 1 close to the mist outlet 8 is provided with an external thread for connecting to a valve cap.

[0022] The device ensures that the air intake amount is consistent with the liquid intake amount by adding the first piston 2, thereby ensuring the mist output effect.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An atomizing nozzle device, characterized in that: The invention comprises a valve body (1) and a first piston (2), wherein the valve body (1) is provided with an inner cavity (3), a first flow channel (4) and a second flow channel (5); an air inlet (6), a liquid inlet (7) and a mist outlet (8) are connected to the inner cavity (3); one end of the first flow channel (4) is connected to the air inlet (6), and the other end of the first flow channel (4) is connected to the second flow channel (5); the first piston (2) is slidably connected to the second flow channel (5), and the second flow channel (5) is connected to the liquid inlet (7); the first piston (2) slides up and down in the second flow channel (5) to change the connecting cross-sectional area between the liquid inlet (7) and the inner cavity (3), thereby controlling the liquid inlet amount.

2. The atomizing nozzle device according to claim 1, characterized in that: The air inlet (6) and the liquid inlet (7) are staggered in the axial direction; the liquid inlet (7) and the air inlet (6) extend in the radial direction of the valve body (1); the first flow channel (4) extends in the circumferential direction of the valve body (1); and the second flow channel (5) extends in the axial direction of the valve body (1).

3. The atomizing nozzle device according to claim 2, characterized in that: A spring (9) is arranged below the first piston (2), a limiting flange (10) is arranged in the second flow channel (5), the limiting flange (10) is arranged above the first piston (2), and the first piston (2) is provided with a waist-shaped hole (11); when the spring (9) is in a natural state, the waist-shaped hole (11) and the liquid inlet (7) are staggered with each other, and when the first piston (2) presses the spring (9) downward to a limit state, the waist-shaped hole (11) and the liquid inlet (7) are aligned with each other.

4. The atomizing nozzle device according to claim 3, characterized in that: A top plug (12) is provided below the spring (9), and the top plug (12) is screwed to the valve body (1).

5. The atomizing nozzle device according to claim 1, characterized in that: The inner cavity (3) is provided with a second piston (13), and the second piston (13) can completely close or completely open the mist outlet (8).

6. The atomizing nozzle device according to claim 5, characterized in that: A valve cover (14) is connected to the top of the valve body (1), a connecting rod (15) is screwed to the valve cover (14), and the end of the connecting rod (15) is fixedly connected to the second piston (13).

7. The atomizing nozzle device according to claim 1, characterized in that: An end of the valve body (1) close to the mist outlet (8) is provided with an external thread for connecting to a valve cap.

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