Nozzle detection device

Abstract

The application belongs to the technical field of detection devices, and discloses a nozzle detection device for detecting a double-fluid nozzle, wherein the double-fluid nozzle comprises a gas channel and a liquid channel, the extension direction of the gas channel intersects with the extension direction of the liquid channel, and the nozzle detection device comprises a container for containing a detection liquid, and a liquid suction assembly, wherein the liquid suction assembly comprises a liquid suction pipe and a flow meter arranged on the liquid suction pipe, the liquid suction pipe comprises a liquid inlet and a liquid outlet, the liquid inlet is located in the container, and the liquid outlet is used for communicating with the liquid channel. The application solves the problem that the product consistency is affected due to the large difference in atomization efficiency of the double-fluid nozzle.

Description

Technical Field

[0001] This application belongs to the field of detection device technology, specifically relating to a nozzle detection device. Background Technology

[0002] Currently, nozzles are widely used in many fields. Taking aroma diffusers as an example, aroma diffusers use dual-fluid nozzles to atomize liquids. A dual-fluid nozzle refers to a nozzle that uses a high-speed airflow in the gas channel to create negative pressure outside the liquid channel, drawing the liquid out of the liquid channel.

[0003] Due to the machining and assembly tolerances during the production process, the atomization efficiency of dual-fluid nozzles varies greatly, affecting product consistency. Utility Model Content

[0004] The purpose of this application is to provide a nozzle detection device that solves the problem of product consistency caused by the large difference in atomization efficiency between two-fluid nozzles.

[0005] To achieve the above objectives, this application provides a nozzle detection device for detecting a dual-fluid nozzle. The dual-fluid nozzle includes a gas channel and a liquid channel, the extension direction of which intersects the extension direction of the liquid channel. The nozzle detection device includes: a container for containing a detection liquid; a liquid suction assembly including a liquid suction tube and a flow meter disposed on the liquid suction tube, the liquid suction tube including an inlet and an outlet, the inlet being located inside the container and the outlet being used to connect to the inlet of the liquid channel; and an air blowing device having an air outlet for connecting to the inlet of the gas channel.

[0006] In some embodiments, the blowing device further includes a housing, and the container, the liquid suction assembly, and the blowing device are respectively connected to the housing and located inside the housing; the housing is provided with a first through hole and a second through hole, one end of the first through hole is connected to the liquid outlet, and the other end of the first through hole is used to connect to the inlet of the liquid channel; one end of the second through hole is connected to the air outlet, and the other end of the second through hole is used to connect to the inlet of the gas channel.

[0007] In some embodiments, the nozzle detection device further includes a controller and an indicator light. The controller is electrically connected to the flow meter and the indicator light, respectively. The controller is used to control the indicator light to illuminate according to the flow value detected by the flow meter. The indicator light is located outside the housing.

[0008] In some embodiments, the air blowing device includes an air pump and an air blowing pipe located within the housing; the air blowing pipe has an air inlet communicating with the air pump and an air outlet located on the air blowing pipe.

[0009] In some embodiments, the nozzle detection device further includes a first elastic pad connected to the housing, the first elastic pad having a liquid suction hole, one end of the liquid suction hole communicating with the end of the first through hole away from the liquid outlet, and the other end of the liquid suction hole being used to communicate with the inlet of the liquid channel; the dual-fluid nozzle includes an inlet end, the inlet of the liquid channel being located at the inlet end, and the end of the first elastic pad away from the first through hole along the extension direction of the liquid suction hole being used to abut against the inlet end.

[0010] In some embodiments, the housing has a liquid collection tank, and a first elastic pad is disposed in the liquid collection tank.

[0011] In some embodiments, the collection tank is located above the container, and the nozzle detection device further includes a return pipe connected between the collection tank and the container, the return pipe being used to introduce the detection liquid in the collection tank into the container.

[0012] In some embodiments, the nozzle detection device further includes a second elastic pad connected to the housing, the second elastic pad having an air blowing hole, one end of the air blowing hole communicating with the end of the second through hole away from the air outlet, and the other end of the air blowing hole being used to communicate with the inlet of the gas channel; the dual-fluid nozzle includes an air inlet end, the inlet of the gas channel being located at the air inlet end, and the end of the second elastic pad along the extension direction of the air blowing hole away from the second through hole being used to abut against the air inlet end.

[0013] In some embodiments, the nozzle detection device further includes a positioning structure connected to the housing, the positioning structure being used to position the position of the dual-fluid nozzle relative to the outlet of the air outlet and the outlet of the suction pipe.

[0014] In some embodiments, the positioning structure includes a plurality of positioning blocks, which are fixedly connected to the housing, and are respectively located on both sides of the first through hole along its own radial direction, and / or, the plurality of positioning blocks are respectively located on both sides of the second through hole along its own radial direction.

[0015] The beneficial effects of the nozzle detection device provided in this application are as follows: The suction tube allows the detection liquid in the container to be introduced into the liquid channel of the dual-fluid nozzle; the blowing device blows air into the gas channel of the dual-fluid nozzle, causing a high-speed airflow to be blown outwards from the liquid channel outlet, thereby drawing the detection liquid out of the container. The flow meter measures the flow rate of the detection liquid flowing through the suction tube. Based on the flow rate measured by the flow meter, the dual-fluid nozzles can be classified according to their flow rate, allowing for the selection of dual-fluid nozzles with similar flow rates. Under the same airflow, the higher the flow rate of the dual-fluid nozzle, the more detection liquid is atomized, resulting in better atomization effect and higher atomization efficiency. Therefore, dual-fluid nozzles with similar flow rates have smaller differences in atomization effect and atomization efficiency. The embodiments of this application can solve the problem of product consistency being affected by large differences in the atomization efficiency of dual-fluid nozzles. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a dual-fluid nozzle provided in some embodiments of this application;

[0018] Figure 2 Schematic diagram of a nozzle detection device provided in some embodiments of this application;

[0019] Figure 3 A schematic diagram of the structure of a dual-fluid nozzle on a nozzle detection device provided in some embodiments of this application;

[0020] Figure 4 A top view of a dual-fluid nozzle on a nozzle detection device provided in some embodiments of this application;

[0021] Figure 5 A cross-sectional view of a dual-fluid nozzle on a nozzle detection device provided in some embodiments of this application;

[0022] Figure 6 for Figure 5 A magnified view of part A in the middle.

[0023] The following are the labeling elements in the figure:

[0024] 100. Nozzle detection device;

[0025] 10. Housing; 11. First through hole; 12. Second through hole; 13. First annular flange; 14. Second annular flange; 15. Liquid collection tank; 16. Liquid filling hole; 17. Power input interface;

[0026] 20. Container;

[0027] 30. Liquid suction assembly; 31. Liquid suction tube; 311. Liquid inlet; 312. Liquid outlet; 32. Flow meter;

[0028] 40. Air blowing device; 41. Air pump; 42. Air blowing pipe; 421. Air inlet; 422. Air outlet;

[0029] 51. Controller; 52. Signal light;

[0030] 60. Positioning block;

[0031] 70. First elastic pad; 71. Liquid suction hole;

[0032] 80. Second elastic pad; 81. Air blowing hole;

[0033] 90. Return pipe;

[0034] 200. Dual-fluid nozzle; 201. Gas passage; 202. Liquid passage; 203. Air inlet; 204. Liquid inlet. Detailed Implementation

[0035] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0036] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0037] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0039] Please refer to Figure 1 , Figure 2 and Figure 5 This application provides a nozzle detection device 100 for detecting a dual-fluid nozzle 200. The dual-fluid nozzle 200 includes a gas channel 201 and a liquid channel 202, and the extending direction of the gas channel 201 intersects the extending direction of the liquid channel 202.

[0040] The nozzle detection device 100 includes a container 20, a liquid suction assembly 30, and an air blowing device 40. The container 20 is used to contain the detection liquid. The liquid suction assembly 30 includes a suction tube 31 and a flow meter 32 disposed on the suction tube 31. The suction tube 31 includes an inlet 311 and an outlet 312. The inlet 311 is located inside the container 20, and the outlet 312 is used to connect to the inlet of the liquid channel 202. The air blowing device 40 has an outlet 422, which is used to connect to the inlet of the gas channel 201.

[0041] The gas channel 201 of the dual-fluid nozzle 200 is used to blow a high-speed airflow to the outside of the outlet of the liquid channel 202, creating a negative pressure outside the outlet of the liquid channel 202 and drawing the liquid out of the liquid channel 202. The dual-fluid nozzle 200 can be used in devices such as aroma diffusers, humidifiers, and atomizers. The dual-fluid nozzle 200 is a nozzle that atomizes liquids using the Venturi atomization principle.

[0042] Optionally, container 20 can be a plastic box, plastic bucket, metal can, etc. The test liquid can be water, oil, etc.

[0043] The suction tube 31 connects the container 20 to the liquid channel 202, allowing the detection liquid to flow into the liquid channel 202. The inlet 311 is located in the detection liquid during use. Optionally, the inlet 311 can be located at the bottom of the container 20, so that after the detection liquid in the upper part of the container 20 is consumed, the inlet 311 remains in the detection liquid, enabling stable discharge of the detection liquid.

[0044] The outlet 312 is used to connect to the inlet of the liquid channel 202, meaning that when testing the dual-fluid nozzle 200, the outlet 312 is connected to the inlet of the liquid channel 202. Optionally, when testing the dual-fluid nozzle 200, the outlet 312 can be directly connected to the inlet of the liquid channel 202. Optionally, when testing the dual-fluid nozzle 200, the outlet 312 can also be connected to the inlet of the liquid channel 202 through other channels. Optionally, the inlet 311 and outlet 312 are located at opposite ends of the suction tube 31 along its extension direction. Optionally, the inlet of the liquid channel 202 of the dual-fluid nozzle 200 is provided with a connecting thread, and the suction tube 31 can be a double-ended inlet tube. The nut on the suction tube 31 can be connected to the dual-fluid nozzle 200 through the thread, so that the suction tube 31 is connected to the liquid channel 202.

[0045] The flow meter 32 is used to measure the flow rate of the detection liquid flowing through the suction tube 31. The flow rate of the detection liquid flowing in the suction tube 31 is also the flow rate of the detection liquid ejected by the dual-fluid nozzle 200.

[0046] The air outlet 422 is used to connect to the inlet of the gas channel 201, meaning that when testing the dual-fluid nozzle 200, the air outlet 422 is connected to the inlet of the gas channel 201. Optionally, when testing the dual-fluid nozzle 200, the air outlet 422 can be directly connected to the inlet of the gas channel 201. Optionally, when testing the dual-fluid nozzle 200, the air outlet 422 can also be connected to the inlet of the gas channel 201 through other channels. Optionally, the blowing device 40 may include an air pump or a fan, capable of blowing out a stable pressure airflow. Optionally, the inlet of the gas channel 201 of the dual-fluid nozzle 200 is provided with a connecting thread, and the blowing device 40 can be provided with a threaded air pipe connector, allowing the blowing device 40 to be connected to the dual-fluid nozzle 200 via the thread.

[0047] When testing the dual-fluid nozzle 200, a test liquid is added to the container 20, and the inlet 311 of the suction tube 31 is positioned within the test liquid. Then, the blowing device 40 and flow meter 32 are activated, connecting the inlet of the liquid channel 202 in the dual-fluid nozzle 200 to the outlet 312 of the suction tube 31, and connecting the inlet of the gas channel 201 in the dual-fluid nozzle 200 to the outlet 422 of the blowing device 40. The airflow from the blowing device 40 flows through the outlet 422 into the gas channel 201 and from the gas channel 201 to the outside of the outlet of the liquid channel 202; a negative pressure is created at the outlet of the liquid channel 202, drawing the test liquid from the container 20 out of the liquid channel 202. As the test liquid flows through the flow meter 32, the flow meter 32 measures the flow rate of the test liquid, and the dual-fluid nozzle 200 is classified based on the flow rate measured by the flow meter 32.

[0048] The beneficial effects of this application embodiment are as follows: the suction tube 31 can guide the detection liquid in the container 20 into the liquid channel 202 of the dual-fluid nozzle 200; the blowing device 40 can blow air into the gas channel 201 of the dual-fluid nozzle 200, causing the gas channel 201 to blow a high-speed airflow to the outside of the outlet of the liquid channel 202, thereby drawing the detection liquid out of the container 20 through the suction tube 31. The flow meter 32 can measure the flow rate of the detection liquid flowing through the suction tube 31. Based on the flow rate value measured by the flow meter 32, the dual-fluid nozzles 200 can be classified according to their flow rate values, and dual-fluid nozzles 200 with similar flow rates can be screened out. Under the same airflow, the larger the flow rate of the dual-fluid nozzle 200, the more detection liquid is atomized, and the better the atomization effect and the higher the atomization efficiency of the dual-fluid nozzle 200. Therefore, the difference in atomization effect and atomization efficiency between dual-fluid nozzles 200 with similar flow rates is small. This application embodiment can solve the problem of product consistency being affected by the large difference in atomization efficiency between dual-fluid nozzles.

[0049] In some embodiments, please refer to Figures 2 to 5The air blowing device 40 also includes a housing 10, with the container 20 and liquid suction assembly 30 respectively connected to and located inside the housing 10. The housing 10 is provided with a first through hole 11 and a second through hole 12. One end of the first through hole 11 is connected to the liquid outlet 312, and the other end of the first through hole 11 is used to connect to the inlet of the liquid channel 202. One end of the second through hole 12 is connected to the air outlet 422, and the other end of the second through hole 12 is used to connect to the inlet of the gas channel 201.

[0050] The enclosure 10 can support the container 20, the liquid suction assembly 30 and the air blowing device 40. The enclosure 10 can also isolate the container 20, the liquid suction assembly 30 and the air blowing device 40 from the environment outside the enclosure 10, and can protect the container 20, the liquid suction assembly 30 and the air blowing device 40.

[0051] The two ends of the first through hole 11 along its own extending direction are located on the inner surface and the outer surface of the housing 10, respectively. Since the suction tube 31 is located inside the housing 10, the end of the first through hole 11 on the inner surface of the housing 10 along its own extending direction communicates with the outlet 312, and the end of the first through hole 11 on the outer surface of the housing 10 along its own extending direction is used to communicate with the inlet of the liquid channel 202. Optionally, when testing the dual-fluid nozzle 200, the first through hole 11 can be directly connected to the inlet of the liquid channel 202. Optionally, when testing the dual-fluid nozzle 200, the first through hole 11 can also be connected to the inlet of the liquid channel 202 through other channels.

[0052] Optionally, a first annular flange 13 coaxial with the first through hole 11 can be provided on the inner surface of the housing 10. One end of the suction tube 31 with the liquid outlet 312 can be sleeved and fixed on the first annular flange 13. A sealing structure, such as sealant, is provided between the outer surfaces of the suction tube 31 and the first annular flange 13. Optionally, one end of the suction tube 31 with the liquid outlet 312 can be fixed inside the first through hole 11, and a sealing structure can be provided between the suction tube 31 and the wall of the first through hole 11.

[0053] The two ends of the second through hole 12 along its own extending direction are located on the inner surface and the outer surface of the housing 10, respectively. Since the air blowing device 40 is located inside the housing 10, the end of the second through hole 12 on the inner surface of the housing 10 along its own extending direction communicates with the air outlet 422, and the end of the second through hole 12 on the outer surface of the housing 10 along its own extending direction is used to communicate with the inlet of the gas channel 201. Optionally, when testing the dual-fluid nozzle 200, the second through hole 12 can be directly connected to the inlet of the gas channel 201. Optionally, when testing the dual-fluid nozzle 200, the second through hole 12 can also be connected to the inlet of the gas channel 201 through other channels.

[0054] The beneficial effects of this embodiment are as follows: With the container 20, liquid suction assembly 30, and air blowing device 40 housed within the housing 10, the external environment of the housing 10 can be prevented from affecting the container 20, liquid suction assembly 30, and air blowing device 40, thus protecting them. Since the container 20, liquid suction assembly 30, and air blowing device 40 are respectively connected to the housing 10, they can remain stable during transportation and use.

[0055] In some embodiments, please refer to Figure 5 The nozzle detection device 100 also includes a controller 51 and an indicator light 52. The controller 51 is electrically connected to the flow meter 32 and the indicator light 52 respectively. The controller 51 is used to control the indicator light 52 to light up according to the flow value detected by the flow meter 32. The indicator light 52 is located outside the housing 10.

[0056] Optionally, the controller 51 can be a programmable logic controller (PLC) or a microcontroller. Optionally, the controller 51 is fixed inside the enclosure 10 to prevent the external environment of the enclosure 10 from affecting the controller 51.

[0057] Under the same airflow, the more test liquid sprayed by the dual-fluid nozzle 200, the better its atomization effect. For example, three indicator lights 52 are provided. When testing the dual-fluid nozzle 200, preset values ​​can be set to aml / min and bml / min, where a is less than b. If the flow rate measured by the flow meter 32 is less than aml / min, the controller 51 controls the first indicator light 52 to illuminate, indicating the dual-fluid nozzle 200 is unqualified. If the flow rate measured by the flow meter 32 is greater than or equal to aml / min and less than bml / min, the controller 51 controls the second indicator light 52 to illuminate, indicating the dual-fluid nozzle 200 is qualified. If the flow rate measured by the flow meter 32 is greater than or equal to bml / min, the controller 51 controls the third indicator light 52 to illuminate, indicating the dual-fluid nozzle 200 is good.

[0058] For example, signal light 52 may also include iridescent LEDs capable of emitting different colors of light, and controller 51 controls one signal light 52 to emit different colors of light based on the flow rate value detected by flow meter 32.

[0059] The beneficial effects of this application embodiment are as follows: the controller 51 controls the indicator light 52 to light up according to the flow value detected by the flow meter 32, which can quickly determine the flow range of the dual-fluid nozzle 200 and quickly classify dual-fluid nozzles 200 in the same flow range, resulting in high detection efficiency.

[0060] In some embodiments, please refer to Figure 5 and Figure 6 The air blowing device 40 includes an air pump 41 and an air blowing pipe 42 located inside the housing 10. The air blowing pipe 42 has an air inlet 421 connected to the air pump 41, and an air outlet 422 located on the air blowing pipe 42.

[0061] The air inlet 421 of the air blowing pipe 42 is connected to the air blowing port of the air pump 41. Optionally, the end of the air blowing pipe 42 with the air inlet 421 can be sealed to the interface on the air pump 41.

[0062] The air outlet 422 communicates with the second through hole 12, and the air outlet 422 is located on the air blowing pipe 42, thus connecting the air pump 41 to the second through hole 12. One end of the air blowing pipe 42 with the air outlet 422 is connected to the housing 10. Optionally, a second annular flange 14 coaxial with the second through hole 12 can be provided on the inner surface of the housing 10. The end of the air blowing pipe 42 with the air outlet 422 can be sleeved and fixed on the second annular flange 14. A sealing structure, such as sealant, can be provided between the outer surfaces of the air blowing pipe 42 and the second annular flange 14. Optionally, the end of the air blowing pipe 42 with the air outlet 422 can be located inside the second through hole 12, and a sealing structure can be provided between the air blowing pipe 42 and the wall of the second through hole 12.

[0063] When testing the dual-fluid nozzle 200, the airflow blown out by the air pump 41 enters the gas channel 201 of the dual-fluid nozzle 200 after passing through the air pipe 42 and the second through hole 12.

[0064] The beneficial effects of this embodiment are as follows: compared with the air pump 41, the air blowing pipe 42 is more easily connected to the first through hole 11 on the housing 10, and the air pump 41 is easily connected to the first through hole 11 through the air blowing pipe 42. The airflow blown out by the air pump 41 can be stably introduced into the first through hole 11 through the air blowing pipe 42.

[0065] In some embodiments, please refer to Figures 2 to 6 The nozzle detection device 100 also includes a first elastic pad 70 connected to the housing 10. The first elastic pad 70 is provided with a liquid suction hole 71. One end of the liquid suction hole 71 is connected to the end of the first through hole 11 away from the liquid outlet 312. The other end of the liquid suction hole 71 is used to connect to the inlet of the liquid channel 202. The dual-fluid nozzle 200 includes an inlet end 204. The inlet of the liquid channel 202 is located at the inlet end 204. The end of the first elastic pad 70 away from the first through hole 11 along the extension direction of the liquid suction hole 71 is used to abut against the inlet end 204.

[0066] The end of the first through hole 11 furthest from the outlet 312 is the end of the first through hole 11 located on the outer surface of the housing 10. One end of the suction hole 71 along its own extending direction is connected to the end of the first through hole 11 furthest from the outlet 312, thus the first elastic pad 70 is located on the outer surface of the housing 10 where the first through hole 11 is located. Optionally, the extending direction of the suction hole 71 is the same as the extending direction of the first through hole 11, resulting in less resistance when the detection liquid flows from the first through hole 11 into the suction hole 71.

[0067] The end of the suction hole 71 extending away from the first through hole 11 along its own extension direction is used to connect to the inlet of the liquid channel 202. The end of the suction hole 71 used to connect to the liquid channel 202 is located at the end of the first elastic pad 70 extending away from the first through hole 11 along the extension direction of the suction hole 71. When testing the dual-fluid nozzle 200, after the liquid inlet end 204 of the dual-fluid nozzle 200 is pressed against the end of the first elastic pad 70 extending away from the first through hole 11 along the extension direction of the suction hole 71, the first elastic pad 70 undergoes elastic deformation, and a seal can be formed between the liquid inlet end 204 and the first elastic pad 70, and the suction hole 71 connects to the liquid channel 202.

[0068] Optionally, the first elastic pad 70 can be a rubber pad, silicone pad, etc. Optionally, the end of the first elastic pad 70 along the length direction of the suction hole 71 near the first through hole 11 can be fixed to the housing 10 and sealed between the housing 10 and the housing 10. Optionally, the end of the first elastic pad 70 along the length direction of the suction hole 71 away from the first through hole 11 can be a flat surface, which can abut against the flat liquid inlet end 204 and then seal.

[0069] The beneficial effects of this embodiment are as follows: The suction hole 71 in the first elastic pad 70 connects the first through hole 11 to the liquid channel 202 of the dual-fluid nozzle 200. When testing the dual-fluid nozzle 200, pressing the inlet end 204 against the first elastic pad 70 connects the suction hole 71 to the liquid channel 202 of the dual-fluid nozzle 200 and seals the inlet end 204 with the first elastic pad 70, enabling rapid and stable connection between the suction hole 71 and the liquid channel 202, thus improving testing efficiency. Furthermore, the first elastic pad 70 is elastic; after the dual-fluid nozzle 200 detaches from the first elastic pad 70, the first elastic pad 70 can reset, allowing for repeated testing of subsequent dual-fluid nozzles 200.

[0070] In other embodiments, the nozzle detection device 100 may also include a liquid connection pipe connected to the housing 10. The liquid connection pipe is located outside the housing 10. One end of the liquid connection pipe along its own extension direction is connected to the end of the first through hole 11 away from the liquid outlet 312, and the other end of the liquid connection pipe is used to connect to the inlet of the liquid channel 202.

[0071] When testing the dual-fluid nozzle 200, the liquid inlet end 204 of the dual-fluid nozzle 200 is connected to the end of the liquid connecting pipe that is away from the first through hole 11 along its own extension direction. The first through hole 11 is connected to the liquid channel 202 through the liquid connecting pipe.

[0072] In some embodiments, please refer to Figure 2 and Figure 3 The box body 10 has a liquid collection tank 15, and the first elastic pad 70 is disposed in the liquid collection tank 15.

[0073] When testing the dual-fluid nozzle 200, the nozzle 200 rests against the first elastic pad 70, thus the nozzle 200 is also located within the collection tank 15. The test liquid ejected by the dual-fluid nozzle 200 can fall into the collection tank 15, facilitating its collection. Optionally, the first elastic pad 70 can be positioned at the bottom of the collection tank 15. When testing the dual-fluid nozzle 200, the nozzle 200 is placed at the bottom of the collection tank 15, ensuring that the test liquid falls stably into the collection tank 15.

[0074] In some embodiments, please refer to Figures 2 to 5 The collection tank 15 is located above the container 20. The nozzle detection device 100 also includes a return pipe 90 connected between the collection tank 15 and the container 20. The return pipe 90 is used to introduce the detection liquid in the collection tank 15 into the container 20.

[0075] The collection tank 15 is located above the container 20, and the return pipe 90 connects the collection tank 15 and the container 20, meaning the return pipe 90 is located below the collection tank 15. The housing 10 is provided with a filling hole 16 connecting the collection tank 15 and the return pipe 90. The return pipe 90 connects the collection tank 15 and the container 20. Under gravity, the detection liquid in the collection tank 15 can flow into the container 20 through the return pipe 90, resulting in a slower consumption rate of the detection liquid in the container 20.

[0076] In some embodiments, please refer to Figures 2 to 6 The nozzle detection device 100 also includes a second elastic pad 80 connected to the housing 10. The second elastic pad 80 is provided with an air blowing hole 81. One end of the air blowing hole 81 is connected to the end of the second through hole 12 away from the air outlet 422, and the other end of the air blowing hole 81 is used to connect to the inlet of the gas channel 201. The dual-fluid nozzle 200 includes an air inlet end 203. The inlet of the gas channel 201 is located at the air inlet end 203. The end of the second elastic pad 80 away from the second through hole 12 along the extension direction of the air blowing hole 81 is used to abut against the air inlet end 203.

[0077] The end of the second through hole 12 furthest from the air outlet 422 is the end of the second through hole 12 located on the outer surface of the housing 10. One end of the blowing hole 81 along its own extension direction communicates with the end of the second through hole 12 furthest from the air outlet 422, thus the second elastic pad 80 is located on the outer surface of the housing 10 where the second through hole 12 is located. Optionally, the extension direction of the blowing hole 81 is the same as the extension direction of the second through hole 12, resulting in less resistance when airflow flows from the second through hole 12 into the blowing hole 81. Based on the structure of the gas channel 201 and the liquid channel 202 in the dual-fluid nozzle 200, the blowing hole 81 and the suction hole 71 can be configured with corresponding structures. Optionally, the extension direction of the blowing hole 81 can be perpendicular to the extension direction of the suction hole 71, adapting to the mutually perpendicular gas channel 201 and liquid channel 202.

[0078] The end of the air inlet 81 extending away from the second through hole 12 along its own extension direction is used to connect to the inlet of the gas channel 201. The end of the air inlet 81 used to connect to the gas channel 201 is located at the end of the second elastic pad 80 extending away from the second through hole 12 along the extension direction of the air inlet 81. When testing the dual-fluid nozzle 200, after the air inlet end 203 of the dual-fluid nozzle 200 is pressed against the end of the second elastic pad 80 extending away from the second through hole 12 along the extension direction of the air inlet 81, the second elastic pad 80 undergoes elastic deformation, and a seal can be formed between the air inlet end 203 and the second elastic pad 80, and the air inlet 81 connects to the gas channel 201.

[0079] Optionally, the second elastic pad 80 can be a rubber pad, silicone pad, etc. Optionally, the end of the second elastic pad 80 along the length of the air hole 81 near the second through hole 12 can be fixed to the housing 10 and sealed between the housing 10 and the housing 10. Optionally, the end of the second elastic pad 80 along the length of the air hole 81 away from the second through hole 12 can be a flat surface, which can abut against the conventional air inlet end 203 and then seal.

[0080] The beneficial effects of this embodiment are as follows: The air inlet 81 in the second elastic pad 80 connects the second through hole 12 to the gas channel 201 of the dual-fluid nozzle 200. When testing the dual-fluid nozzle 200, pressing the inlet end 203 against the second elastic pad 80 connects the air inlet 81 to the gas channel 201 and seals the inlet end 203 with the second elastic pad 80, enabling rapid and stable connection between the air inlet 81 and the gas channel 201, thus improving testing efficiency. Furthermore, the second elastic pad 80 is elastic; after the dual-fluid nozzle 200 detaches from the second elastic pad 80, the second elastic pad 80 can reset, allowing for repeated testing of subsequent dual-fluid nozzles 200.

[0081] In other embodiments, the nozzle detection device 100 may also include a gas connection pipe connected to the housing 10. The gas connection pipe is located outside the housing 10. One end of the gas connection pipe along its own extension direction is connected to the end of the second through hole 12 away from the gas outlet 422. The other end of the gas connection pipe is used to connect to the inlet of the gas channel 201.

[0082] When testing the dual-fluid nozzle 200, connect the air inlet end 203 of the dual-fluid nozzle 200 to the end of the gas connecting pipe that is away from the second through hole 12 along its own extension direction. The second through hole 12 is connected to the gas channel 201 through the gas connecting pipe.

[0083] In some embodiments, please refer to Figures 2 to 4 The nozzle detection device 100 also includes a positioning structure connected to the housing 10. The positioning structure is used to position the dual-fluid nozzle 200 relative to the outlet 422 and the outlet of the suction pipe 31.

[0084] Optionally, the positioning structure can also be a limiting groove formed on the housing 10. Placing the dual-fluid nozzle 200 into the limiting groove can position the dual-fluid nozzle 200 on the housing 10, thereby positioning the position of the dual-fluid nozzle 200 relative to the outlet 422 and the outlet of the suction pipe 31.

[0085] Optionally, the positioning structure may also include multiple cylinders fixed on the housing 10, with the extension directions of the multiple cylinders intersecting; the detection dual-fluid nozzle 200 is placed between the multiple cylinders, and the multiple cylinders can press and fix the dual-fluid nozzle 200 at a designated position on the housing 10, thereby positioning the position of the dual-fluid nozzle 200 relative to the outlet 422 and the outlet of the suction tube 31.

[0086] Optionally, when the nozzle detection device 100 includes a first through hole 11, a second through hole 12, an air blowing hole 81, and a liquid suction hole 71, the positioning structure is also used to position the dual-fluid nozzle 200 relative to the first through hole 11, the second through hole 12, the air blowing hole 81, and the liquid suction hole 71.

[0087] The beneficial effects of this application embodiment are as follows: the positioning structure can position the dual-fluid nozzle 200 relative to the outlet 422 and the outlet of the suction tube 31, which can quickly place the dual-fluid nozzle 200 in the accurate position and connect the gas channel 201 with the outlet 422 and the liquid channel 202 with the outlet of the suction tube 31, thereby improving the detection efficiency.

[0088] In some embodiments, please refer to Figures 2 to 4 The positioning structure includes multiple positioning blocks 60, which are fixedly connected to the housing 10 respectively, and are respectively located on both sides of the first through hole 11 along its own radial direction.

[0089] The first through hole 11 has multiple radial directions. Multiple positioning blocks 60 are respectively disposed on both sides of the first through hole 11 along one of these radial directions. When testing the dual-fluid nozzle 200, the dual-fluid nozzle 200 is placed between the positioning blocks 60 on both sides of the first through hole 11. The positioning blocks 60 can prevent the dual-fluid nozzle 200 from moving radially along the first through hole 11, and the housing 10 can prevent the dual-fluid nozzle 200 from moving axially along the first through hole 11 and the second through hole 12, thus enabling rapid positioning of the dual-fluid nozzle 200. Furthermore, the positioning blocks 60 have a relatively simple structure and are easy to manufacture.

[0090] Optionally, the arrangement direction of the multiple positioning blocks 60, the axial direction of the first through hole 11, and the axial direction of the second through hole 12 are perpendicular to each other, which can accurately position the dual-fluid nozzle 200.

[0091] In some embodiments, please refer to Figures 2 to 4 The positioning structure includes multiple positioning blocks 60, which are fixedly connected to the housing 10 respectively, and are respectively located on both sides of the second through hole 12 along its own radial direction.

[0092] The second through hole 12 has multiple radial directions. Multiple positioning blocks 60 are respectively disposed on both sides of the second through hole 12 along one of these radial directions. When testing the dual-fluid nozzle 200, the dual-fluid nozzle 200 is placed between the positioning blocks 60 on both sides of the second through hole 12. The positioning blocks 60 can prevent the dual-fluid nozzle 200 from moving radially along the second through hole 12, and the housing 10 can prevent the dual-fluid nozzle 200 from moving axially along the second through hole 12, thus enabling rapid positioning of the dual-fluid nozzle 200. Furthermore, the positioning block 60 has a relatively simple structure and is easy to manufacture.

[0093] In some embodiments, please refer to Figures 2 to 4 The positioning structure includes multiple positioning blocks 60, which are fixedly connected to the housing 10. The multiple positioning blocks 60 are respectively located on both sides of the first through hole 11 along its own radial direction. The multiple positioning blocks 60 are respectively located on both sides of the second through hole 12 along its own radial direction.

[0094] In some embodiments, please refer to Figure 4 and Figure 5 The housing 10 is also equipped with a power input interface 17, which can be electrically connected to the control board, flow meter 32, air pump 41, and indicator lights.

[0095] In some embodiments, please refer to Figures 1 to 6The nozzle detection device 100 includes a housing 10, a container 20, a liquid suction assembly 30, an air blowing device 40, a controller 51, and an indicator light 52. The container 20 is used to hold the detection liquid. The liquid suction assembly 30 includes a suction tube 31 and a flow meter 32 mounted on the suction tube 31. The suction tube 31 includes an inlet 311 and an outlet 312. The inlet 311 is located inside the container 20, and the outlet 312 is used to connect to the inlet of the liquid channel 202. The air blowing device 40 has an air pump 41 and an air blowing pipe 42. The air blowing pipe 42 has an outlet 422 and an inlet 421 connected to the air pump 41. The outlet 422 is used to connect to the inlet of the gas channel 201.

[0096] The container 20, the liquid suction assembly 30, the air pump 41, the air blowing pipe 42, and the controller 51 are respectively connected to the housing 10 and located inside the housing 10. The housing 10 is provided with a first through hole 11 and a second through hole 12. One end of the first through hole 11 is connected to the liquid outlet 312, and the other end of the first through hole 11 is used to connect to the inlet of the liquid channel 202; one end of the second through hole 12 is connected to the air outlet 422, and the other end of the second through hole 12 is used to connect to the inlet of the gas channel 201.

[0097] The indicator light 52 is connected to the housing 10 and located outside the housing 10. The controller 51 is electrically connected to the flow meter 32 and the indicator light 52 respectively. The controller 51 is used to control the indicator light 52 to light up according to the flow value detected by the flow meter 32.

[0098] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A nozzle detection device for detecting a dual-fluid nozzle, the dual-fluid nozzle comprising a gas channel and a liquid channel, wherein the extending direction of the gas channel intersects the extending direction of the liquid channel, characterized in that, The nozzle detection device includes: Containers used to hold the test solution; A liquid suction assembly, comprising a liquid suction tube and a flow meter disposed on the liquid suction tube, the liquid suction tube comprising an inlet and an outlet, the inlet being located inside the container, and the outlet being used to connect to the inlet of the liquid channel; An air blowing device having an air outlet for connecting to the inlet of the gas channel.

2. The nozzle detection device as described in claim 1, characterized in that, The air blowing device also includes a housing, and the container, the liquid suction assembly and the air blowing device are respectively connected to the housing and located inside the housing; the housing is provided with a first through hole and a second through hole, one end of the first through hole is connected to the liquid outlet, and the other end of the first through hole is used to connect to the inlet of the liquid channel; one end of the second through hole is connected to the air outlet, and the other end of the second through hole is used to connect to the inlet of the gas channel.

3. The nozzle detection device as described in claim 2, characterized in that, The nozzle detection device further includes a controller and a signal light. The controller is electrically connected to the flow meter and the signal light, respectively. The controller is used to control the signal light to illuminate according to the flow value detected by the flow meter. The signal light is located outside the housing.

4. The nozzle detection device as described in claim 2, characterized in that, The air blowing device includes an air pump and an air blowing pipe located inside the housing; the air blowing pipe has an air inlet communicating with the air pump, and the air outlet is located on the air blowing pipe.

5. The nozzle detection device as described in claim 2, characterized in that, The nozzle detection device further includes a first elastic pad connected to the housing. The first elastic pad is provided with a liquid suction hole. One end of the liquid suction hole is connected to the end of the first through hole away from the liquid outlet. The other end of the liquid suction hole is used to connect to the inlet of the liquid channel. The dual-fluid nozzle includes an inlet end. The inlet of the liquid channel is located at the inlet end. The end of the first elastic pad away from the first through hole along the extension direction of the liquid suction hole is used to abut against the inlet end.

6. The nozzle detection device as described in claim 5, characterized in that, The box has a liquid collection tank, and the first elastic pad is disposed in the liquid collection tank.

7. The nozzle detection device as described in claim 6, characterized in that, The collection tank is located above the container, and the nozzle detection device further includes a return pipe connected between the collection tank and the container, the return pipe being used to introduce the detection liquid in the collection tank into the container.

8. The nozzle detection device as described in claim 2, characterized in that, The nozzle detection device further includes a second elastic pad connected to the housing. The second elastic pad is provided with an air blowing hole. One end of the air blowing hole is connected to the end of the second through hole away from the air outlet, and the other end of the air blowing hole is used to connect to the inlet of the gas channel. The dual-fluid nozzle includes an air inlet end, and the inlet of the gas channel is located at the air inlet end. The end of the second elastic pad away from the second through hole along the extension direction of the air blowing hole is used to abut against the air inlet end.

9. The nozzle detection device as described in any one of claims 2-8, characterized in that, The nozzle detection device further includes a positioning structure connected to the housing, the positioning structure being used to position the dual-fluid nozzle relative to the air outlet and the outlet of the suction tube.

10. The nozzle detection device as described in claim 9, characterized in that, The positioning structure includes multiple positioning blocks, each of which is fixedly connected to the housing. The multiple positioning blocks are respectively located on both sides of the first through hole along its radial direction, and / or... The plurality of positioning blocks are respectively disposed on both sides of the second through hole along its own radial direction.

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