A mist spray head

Abstract

The utility model provides a misty spray head, including the spray head main part and the inner nozzle, the inside of spray head main part is equipped with gas flow channel, liquid flow channel and mixed flow channel, there is the intercommunication mouth of realization intercommunication between gas flow channel with liquid flow channel, after the intercommunication of gas flow channel with liquid flow channel intercommunication, in mixed flow channel, fluid passageway is set in the inner nozzle, the inner nozzle is built -in installation in gas flow channel, the intercommunication mouth is located one side of inner nozzle. This misty spray head compact structure, gas flow channel, liquid flow channel and mixed flow channel are integratedly arranged in the inside of spray head main part, and the inner nozzle is built -in installation in gas flow channel, only need to connect the external connector, and the spray head body and each flow channel are simple to operate, and the spray head atomization effect is good.

Description

Technical Field

[0001] This utility model relates to the field of nozzle technology, and in particular to a mist spray nozzle. Background Technology

[0002] An atomizing nozzle is a device that atomizes and evenly sprays liquid. It effectively increases the contact area between the liquid and the surrounding medium, making it widely used in dust removal, combustion, sandblasting, and other fields. Pneumatic atomizing nozzles are currently the most widely used type. They utilize a high-speed airflow passing rapidly through the nozzle to create a negative pressure at the water outlet of the injection hole. Even if the liquid pressure at the injection hole is not high, liquid can still be drawn out. Because the airflow velocity is much greater than the liquid flow velocity exiting the injection hole, the liquid is broken into droplets by the strong impact of the airflow and mixed with the airflow to form a mist. Existing pneumatic atomizing nozzles have complex structures, are cumbersome to manufacture, and are relatively large in size. Utility Model Content

[0003] Therefore, in response to at least one of the above problems, this utility model provides a mist spray head.

[0004] This utility model is achieved using the following solution:

[0005] This utility model proposes a mist spray head, including a nozzle body and an inner nozzle. The nozzle body has a gas flow channel, a liquid flow channel and a mixing flow channel inside. The gas flow channel and the liquid flow channel have a communication port to achieve communication. After the gas flow channel and the liquid flow channel are interconnected, they are connected to the mixing flow channel. A fluid channel is provided through the inner nozzle. The inner nozzle is installed inside the gas flow channel. The communication port is located on one side of the inner nozzle.

[0006] In one embodiment, the connection port is located on the side wall of the gas flow channel, the gas flow channel continues to extend forward after passing the connection port, and finally connects to the mixing flow channel, and the liquid flow channel extends to the connection port.

[0007] In one embodiment, the gas flow channel includes at least a first interface section and a first main flow channel section that are interconnected. The first interface section is used to connect with a first connector, and the first main flow channel section is used to install and connect with the inner nozzle. The inner nozzle includes a reduced diameter section, the diameter of which is smaller than that of the first main flow channel section. There is a gap space between the reduced diameter section and the sidewall of the first main flow channel section, and the communication port is located on the sidewall of the gap space.

[0008] In one embodiment, the first main flow channel section is provided with an internal thread; the inner nozzle further includes an external thread section, which is connected to the reduced diameter section. The external thread section is used to engage with the internal thread of the first main flow channel section to screw the inner nozzle onto the first main flow channel section, and the reduced diameter section of the inner nozzle is oriented towards the mixing channel.

[0009] In one embodiment, the end of the external threaded section of the inner nozzle is provided with a tool interface for connecting an operating tool.

[0010] In one embodiment, the outer surface of the reduced-diameter section of the inner nozzle has a smooth structure, and the end of the reduced-diameter section is chamfered.

[0011] In one embodiment, the angle between the central axis of the gas flow channel and the central axis of the liquid flow channel is 21° to 25°.

[0012] In one embodiment, the liquid flow channel includes a second interface section and a second main flow channel section that are interconnected. The second interface section is used to connect to a second connector, and the end of the second main flow channel section is connected to the communication port.

[0013] In one embodiment, the mist spray head further includes a first connector and a second connector; the first connector and the second connector are both straight connectors, or the first connector and the second connector are both right-angle connectors, or the first connector and the second connector are both adjustable connectors, wherein the adjustable connector is a speed regulating throttle valve.

[0014] In one embodiment, the nozzle body is further provided with a threaded portion and a nozzle portion connected to the threaded portion; the nozzle body is also provided with a mounting hole for mounting and fixing the mist spray head.

[0015] The technical solution provided by this utility model has the following technical effects:

[0016] This invention provides a mist spray head, including a nozzle body and an inner nozzle. The nozzle body has a gas flow channel, a liquid flow channel, and a mixing channel inside. The gas flow channel and the liquid flow channel have a connecting port for communication. The gas flow channel and the liquid flow channel are interconnected and then connected to the mixing channel. A fluid channel is provided through the inner nozzle, which is internally installed within the gas flow channel. The connecting port is located on one side of the inner nozzle. When high-pressure gas is ejected at high speed through the inner nozzle, it can create sufficient negative pressure in the surrounding space. Because the connecting port is located on one side of the inner nozzle, the negative pressure can be transmitted to the liquid flow channel through the connecting port, thereby creating a negative pressure environment in the liquid flow channel. This attracts liquid to flow into the liquid flow channel, and after being fully mixed with the high-pressure gas in the mixing channel, it is ejected, forming a mist spray effect. This mist spray head has a compact structure, integrating gas flow channels, liquid flow channels, and mixing flow channels inside the nozzle body. The internal nozzle is installed inside the gas flow channel, requiring only the connection of an external connector. The nozzle body and each flow channel are simple to process, and the nozzle has a good atomization effect. Attached Figure Description

[0017] Figure 1 This is a perspective view of the mist spray head according to an embodiment of the present utility model;

[0018] Figure 2 This is an exploded view of the mist spray head of the above embodiment;

[0019] Figure 3 This is a full sectional view of the mist spray head of the above embodiment;

[0020] Figure 4 This is a perspective view of the internal nozzle in the above embodiment;

[0021] Figure 5 This is a full sectional view of the inner nozzle in the above embodiment;

[0022] Figure 6 This is a full sectional view of the inner nozzle installed on the nozzle body in the above embodiment;

[0023] Figure 7 This is a perspective view of a mist spray head according to another improved embodiment;

[0024] Figure 8 This is a perspective view of a mist spray head according to another improved embodiment. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0027] like Figures 1-7 As shown, this embodiment provides a mist spray head 1, including a nozzle body 10, an inner nozzle 20, a first connector 30, and a second connector 40. The nozzle body 10 has a gas flow channel 12, a liquid flow channel 13, and a mixing flow channel 14 inside. The gas flow channel 12 can be used to flow high-pressure gas. The liquid flow channel 13 is a liquid flow channel used to flow liquid. The gas flow channel 12 and the liquid flow channel 13 are interconnected and then connected to the mixing flow channel 14. A connection port 123 is provided between the gas flow channel 12 and the liquid flow channel 13 to achieve communication. The inner nozzle 20 is internally installed within the gas flow channel 12, and the connection port 123 is located on one side of the inner nozzle 20. When high-pressure gas is ejected at high speed through the inner nozzle 20, it can create sufficient negative pressure in the surrounding space. Since the connecting port 123 is located on one side of the inner nozzle 20, the negative pressure can be transmitted to the liquid flow channel 13 through the connecting port 123, thereby creating a negative pressure environment in the liquid flow channel 13, attracting liquid to flow into the liquid flow channel 13, and after being fully mixed with the high-pressure gas in the mixing channel 14, it is ejected to form an atomized spray effect. This atomized spray head 1 has a compact structure, integrating the gas flow channel 12, liquid flow channel 13, and mixing channel 14 inside the nozzle body 10. The inner nozzle 20 is built into the gas flow channel 12, requiring only the connection of an external connector. The nozzle body and each flow channel are simple to process, and the nozzle has a good atomization effect.

[0028] The connecting port 123 is located on the side wall of the gas flow channel 12. That is, after passing through the connecting port 123, the gas flow channel 12 continues forward and finally connects to the mixing flow channel 14. The liquid flow channel 13 extends to the connecting port 123. With the above arrangement, when high-pressure gas flows through the gas flow channel 12, it is more conducive to generating a negative pressure environment in the liquid flow channel 13.

[0029] The gas flow channel 12 includes a first interface section 121, an intermediate section 124, and a first main flow channel section 122 connected in sequence. The diameters of the first interface section 121, the intermediate section 124, and the first main flow channel section 122 decrease sequentially. The first interface section 121 is threaded for connection with the first connector 30. The first main flow channel section 122 is used to install the inner nozzle 20. The first main flow channel section 122 is threaded, with the thread partially located on the upper part of the first main flow channel section 122. The inner nozzle 20 includes an externally threaded section 21 and a reduced-diameter section 22 connected to each other. The externally threaded section 21 is used to mate with the internal thread of the first main flow channel section 122, thereby installing the inner nozzle 20 on the first main flow channel section 122. The reduced-diameter section 22 of the inner nozzle 20 is oriented towards the mixing channel 14. The diameter of the narrowed section 22 is smaller than that of the first main channel section 122, thus creating a gap space S between the narrowed section 22 and the sidewall of the first main channel section 122. The connecting port 123 is located on the sidewall of the gap space S, allowing the liquid flow channel 13 to connect to this gap space S. A fluid channel 25 is provided through the inner nozzle 20. The intermediate section 124 is located between the first interface section 121 and the first main channel section 122, serving as a transition. In some embodiments, the intermediate section 124 may be omitted, and the first interface section 121 may be directly connected to the first main channel section 122. Alternatively, the external thread section 21 may be omitted, and the inner nozzle 20 may be installed on the first main channel section 122 by means of snap-fit ​​or similar methods.

[0030] In this embodiment, when the high-pressure gas is ejected at high speed through the fluid channel 25 of the inner nozzle 20, it can form a sufficient negative pressure in the gap space S. The negative pressure of the gap space S is transmitted to the liquid flow channel 13, thereby creating a negative pressure environment in the liquid flow channel 13, attracting the liquid to flow into the liquid flow channel 13 through the second connector 40. Furthermore, due to the presence of the gap space S, the liquid is dispersed in the gap space S and is ejected after being fully mixed with the high-pressure gas in the mixing channel 14, resulting in better atomization effect of the nozzle.

[0031] In this embodiment, the liquid flow channel 13 includes a second interface section 131 and a second main flow channel section 132 connected to each other. The second interface section 131 is threaded for connection with the second connector 40. The end of the second main flow channel section 132 is connected to the communication port 123.

[0032] The angle A between the central axis of the gas flow channel 12 and the central axis of the liquid flow channel 13 is preferably 21° to 25°, more preferably 23°. At the above angle, the gas flow channel 12 and the liquid flow channel 13 are reasonably integrated and arranged inside the nozzle body 10, while ensuring a good nozzle atomization effect.

[0033] The outer surface of the reduced-diameter section 22 of the inner nozzle 20 is smooth, and the end of the reduced-diameter section 22 is chamfered 221. The chamfer 221 facilitates smoother fluid flow, thereby further improving the atomization effect. The end of the external threaded section 21 of the inner nozzle 20 is provided with a tool interface 24. The tool interface 24 can be used to connect operating tools, such as a hexagonal wrench. The tool interface 24 has a hexagonal structure, which allows the inner nozzle 20 to be easily screwed onto the first main channel section 122.

[0034] The nozzle body 10 is also provided with a threaded portion 15, which is used to install accessories on the nozzle body 10, such as a flow-limiting nut with an adjustable orifice diameter; or the threaded portion 15 can serve as a mounting structure for the mist spray head 1, used for the overall installation and fixation of the mist spray head 1. The threaded portion 15 is also connected to a nozzle portion 16, which has a fluid outlet connected to the mixing channel 14. The nozzle body 10 is also provided with a mounting hole 17, which is used for the installation and fixation of the mist spray head 1, making installation more convenient.

[0035] In this embodiment, both the first connector 30 and the second connector 40 are straight-through connectors. Optionally, in some other embodiments, the first connector 30 and the second connector 40 can be replaced with a first right-angle connector 30a and a second right-angle connector 40a, such as... Figure 7 As shown; or, the first connector 30 and the second connector 40 can be replaced with the first adjustable connector 30b and the second adjustable connector 40b, as shown. Figure 8 As shown. The first adjustable connector 30b and the second adjustable connector 40b are, for example, SL06-01 speed control throttle valves, which enable convenient control of the spray flow rate.

[0036] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A mist spray head characterized in that, The device includes a nozzle body and an inner nozzle. The nozzle body has a gas flow channel, a liquid flow channel and a mixing flow channel inside. The gas flow channel and the liquid flow channel have a communication port to achieve communication. After the gas flow channel and the liquid flow channel are interconnected, they are connected to the mixing flow channel. A fluid channel is provided through the inner nozzle. The inner nozzle is installed inside the gas flow channel. The communication port is located on one side of the inner nozzle.

2. The misting spray head of claim 1, wherein: The connection port is located on the side wall of the gas flow channel. After passing the connection port, the gas flow channel continues to extend forward and eventually connects to the mixing flow channel. The liquid flow channel extends to the connection port.

3. The misting spray head of claim 1, wherein: The gas flow channel includes at least a first interface section and a first main flow channel section that are interconnected. The first interface section is used to connect with a first connector, and the first main flow channel section is used to install and connect with the inner nozzle. The inner nozzle includes a reduced diameter section, the diameter of which is smaller than that of the first main flow channel section. There is a gap space between the reduced diameter section and the sidewall of the first main flow channel section, and the communication port is located on the sidewall of the gap space.

4. The misting spray head of claim 3, wherein: The first main flow channel section is provided with internal threads; the inner nozzle also includes an external thread section, which is connected to the reduced diameter section. The external thread section is used to engage with the internal thread of the first main flow channel section to screw the inner nozzle onto the first main flow channel section, and the reduced diameter section of the inner nozzle is oriented towards the mixing channel.

5. The misting spray head of claim 4, wherein: The end of the external threaded section of the inner nozzle is provided with a tool interface, which is used to connect an operating tool.

6. The mist spray head of claim 3, wherein: The outer surface of the reduced-diameter section of the inner nozzle has a smooth structure, and the end of the reduced-diameter section is chamfered.

7. The mist spray head of claim 1, wherein: The angle between the central axis of the gas flow channel and the central axis of the liquid flow channel is 21° to 25°.

8. The mist spray head of claim 1, wherein: The liquid flow channel includes a second interface section and a second main flow channel section that are interconnected. The second interface section is used to connect to the second connector, and the end of the second main flow channel section is connected to the communication port.

9. The mist spray head of claim 1, wherein: The mist spray head also includes a first connector and a second connector; the first connector and the second connector are both straight connectors, or the first connector and the second connector are both right-angle connectors, or the first connector and the second connector are both adjustable connectors, and the adjustable connector is a speed regulating throttle valve.

10. The mist spray head of claim 1, wherein: The nozzle body is also provided with a threaded portion and a nozzle portion connected to the threaded portion; the nozzle body is also provided with a mounting hole for mounting and fixing the mist spray head.

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