Micro-nano bubble water nozzle structure, cleaning system and water tank thereof

Abstract

The utility model relates to a kind of micro-nano bubble water shower nozzle structure and its cleaning system and sink, micro-nano bubble water shower nozzle structure, including shower nozzle, the shower nozzle includes cylindrical shell, spout piece, shield, first block, second flow channel, control piece and elastic piece respectively.This utility model can form annular air curtain outside the periphery of spray hole, using the air curtain formed can prevent the water flow from splashing around when micro-nano bubble water is sprayed, on the other hand, can prevent bubbles from being precipitated from micro-nano bubble water, beneficial to improve the spray washing effect of micro-nano bubble water, and the inside of shower nozzle can be cleaned, to prevent blockage, in addition, it can realize the spray washing of stubborn dirt, and obtain good spray washing effect.

Description

Technical Field

[0001] This utility model relates to the field of cleaning devices, and in particular to a micro-nano bubble water nozzle structure, its cleaning system, and a water tank. Background Technology

[0002] Micro / nano bubble water refers to water containing a large number of tiny bubbles with diameters ranging from micrometers (less than 1 μm) to nanometers (less than 100 nm). Due to their extremely small size, these bubbles exhibit different physicochemical properties from ordinary bubbles, and therefore have broad application potential in many fields. For example, Chinese utility model patent ZL201922289262.5 (authorization announcement number CN211355306U) discloses a water tank with a micro-nano bubble water generating device, including a water tank body, a bubble generating nozzle, a controller, and a remote control. The outlet end of the bubble generating nozzle is connected to a connecting pipe, the upper end of which penetrates the bottom of the water tank body and extends into the water tank body. The upper end of the connecting pipe is threadedly connected to a spray head, the spray head has a blind hole with an opening at the lower end, and several spray holes are provided on the side wall of the spray head. The upper end of the spray head has a downward-bent annular water-blocking edge. The inlet of the bubble generating nozzle is connected to a water inlet pipe, and a solenoid valve is installed on the water inlet pipe. The air inlet end of the bubble generating nozzle is connected to an air supply device. The air supply device and the solenoid valve are electrically connected to the controller, and the remote control is wirelessly connected to the controller.

[0003] The aforementioned spray nozzles only achieve the cleaning function by spraying micro-nano bubble water. However, after the items (such as tableware) are cleaned, they need to be drained for a relatively long time under natural conditions. Furthermore, after the micro-nano bubble water is sprayed out of the nozzle, the bubbles inside are easily separated, which affects the cleaning effect of the micro-nano bubble water. Summary of the Invention

[0004] The first technical problem to be solved by this utility model is to provide a micro-nano bubble water nozzle structure that can prevent splashing of micro-nano bubble water, which is in contrast to the prior art.

[0005] The second technical problem to be solved by this utility model is to provide a micro-nano bubble water nozzle structure with good cleaning effect compared with the prior art.

[0006] The third technical problem to be solved by this utility model is to provide a cleaning system with the above-mentioned micro-nano bubble water nozzle structure, which is in contrast to the prior art.

[0007] The fourth technical problem to be solved by this utility model is to provide a water tank with the above-mentioned cleaning system in contrast to the prior art.

[0008] The technical solution adopted by this utility model to solve at least one of the above-mentioned technical problems is: a micro-nano bubble water nozzle structure, comprising a nozzle, characterized in that the nozzle comprises:

[0009] The outer shell is cylindrical.

[0010] The injection component, cylindrical in shape, is coaxially inserted into the first end port of the aforementioned housing and can slide back and forth along the axial direction of the housing through the guiding engagement between its outer circumferential surface and the inner circumferential surface of the housing.

[0011] Furthermore, an annular gap is formed between its outer peripheral surface and the inner peripheral surface of the outer shell along the circumferential direction, and a first flow channel is provided axially inside it, with the outlet end of the first flow channel penetrating to its outer end face to form a spray hole.

[0012] The shielding element is annular in shape and is installed in the aforementioned housing to shield the aforementioned annular gap circumferentially.

[0013] The first block is housed in one side of the inner cavity of the second end of the outer shell and forms an airflow channel with the side wall on the other side. The inlet end of the airflow channel is connected to the second end port of the outer shell, while the outlet end is connected to the annular gap.

[0014] The second flow channel is axially disposed in the first block and is directly opposite to the first flow channel. Its outlet end is connected to the inlet end of the first flow channel, and its inlet end is connected to the second end port of the outer shell. Furthermore, a guide hole communicating with the airflow channel is provided on its side wall.

[0015] A control element, protruding from the inner end of the aforementioned injection element and located in the aforementioned airflow channel, is used to open and close the aforementioned guide hole; and

[0016] An elastic element is circumferentially sandwiched between the inner end faces of the aforementioned shielding element and the spraying element;

[0017] In the initial state, the control member shields the guide hole, and the shielding member and the spray member have a first axial gap to open the annular gap. When the elastic member is in the initial state and the spray member is pressed inward relative to the outer shell, the spray member moves inward to shield the annular gap. At the same time, the control member opens the guide hole, and the elastic member is compressed so that the spray member tends to move outward relative to the outer shell and reset.

[0018] Furthermore, the control component is a plate protruding from the inner end face of the aforementioned spraying component. This plate extends axially along the outer shell and has control holes.

[0019] In the initial state, the control hole on the control component is offset from the aforementioned guide hole along the axial direction of the outer shell, thus closing the guide hole. When the injection component is pressed inward, the injection component moves inward, causing the control hole to align with the guide hole and opening the guide hole. In this way, as the injection component slides axially relative to the outer shell, it can realize the opening and closing of the annular gap by the shielding component, and on the other hand, the synchronous movement of the control component can realize the change of the relative position of the control hole and the guide hole. When the control hole and the guide hole are offset from each other, the control component closes the guide hole, and when the control component is aligned with the guide hole, the guide hole opens.

[0020] Furthermore, the shielding member includes a first annular wall extending axially, the thickness of which matches the aforementioned annular gap.

[0021] The outer circumferential surface of the aforementioned spray component is provided with axially extending slide bars at circumferential intervals, while the inner circumferential surface of the aforementioned housing is provided with axially extending slide grooves at circumferential intervals. Each slide groove corresponds to one of the aforementioned slide bars, and each slide bar is fitted into the corresponding slide groove and can slide back and forth along the slide groove.

[0022] One side of the first annular wall is provided with notches at circumferential intervals, each corresponding to one of the slide bars. Each notch extends axially. In the initial state, when the spraying component is pressed inward, the corresponding ends of each slide bar are engaged in the corresponding notches, thereby stopping the spraying component and blocking the annular gap. The cooperation between each slide bar and its corresponding groove guides the spraying component to move smoothly back and forth axially relative to the outer shell. Furthermore, the cooperation between the notches on the blocking component and the corresponding slide bars limits the spraying component to the closed annular gap state, ensuring that the spraying component remains stably in the closed annular gap state.

[0023] Furthermore, a first thread is provided circumferentially on the outer circumferential surface of the first annular wall, while a second thread is provided on the inner circumferential surface of the outer shell, which can form a threaded connection with the first thread.

[0024] Furthermore, the side edge of the other side of the first annular wall extends radially inward to form a second annular wall. The aforementioned elastic element is a spring, which is circumferentially clamped between the second annular wall and the inner end face of the spraying element. The threaded connection of the first and second threads enables the shielding element to be securely installed inside the housing. At the same time, the second annular wall enables the elastic element to be securely installed. Moreover, when the annular gap is closed and the pressure applied to the spraying element is removed, the elastic element can better exert its elastic force to return the spraying element to its initial state.

[0025] Furthermore, the second flow channel is provided with a grid perpendicular to the extending direction of the first flow channel. The grid helps to stabilize the micro-nano bubble water flowing into the second flow channel and prevents gas from escaping from the micro-nano bubble water.

[0026] Furthermore, the first block has a chamfered cross-section, which is arranged along the axial direction of the outer shell. Its arc-shaped outer surface circumferentially fits against the inner circumferential surface of the corresponding side of the second end of the outer shell along its length. The other planar outer surface, along with the inner circumferential surface of the other side of the second end of the outer shell, forms the aforementioned airflow channel, and the aforementioned guide hole is provided. This facilitates the stable placement of the first block within the outer shell and better forms an airflow channel inside the outer shell. Simultaneously, when the guide hole is open, the gas in the airflow channel can smoothly enter the second flow channel through the guide hole.

[0027] Furthermore, a first connecting sleeve extending axially is provided on the end face of the first block, while a second connecting sleeve is provided on the end face of the aforementioned spraying component. The first connecting sleeve and the second connecting sleeve are directly opposite each other and interlocked, so that the first flow channel and the second flow channel are connected. Moreover, the two are always interlocked during the movement of the spraying component, and a first sealing ring is always clamped circumferentially at the connection point between the two. By providing a first connecting sleeve on the first block and a second connecting sleeve on the spraying component, it is ensured that the first flow channel and the second flow channel remain in a connected state during the movement of the spraying component, and leakage at the connection point between the two can be avoided.

[0028] Furthermore, it also includes a long strip-shaped connecting joint, in which air intake channels and water intake channels are arranged side by side, extending along their own length.

[0029] The second port of the aforementioned outer casing extends radially inward along the circumferential direction to form a first annular edge. One end of the aforementioned first block abuts against the aforementioned shielding member, and the other end abuts against the first annular edge. The shape of the central hole of the first annular edge matches the shape of the corresponding end of the aforementioned connecting connector. The corresponding end of the connecting connector is inserted into the central hole of the first annular edge, so that the outlet end of the air inlet channel in the connecting connector is connected to the inlet end of the aforementioned airflow channel, and the outlet end of the water inlet channel is connected to the inlet end of the aforementioned second flow channel. Gas can be introduced into the airflow channel through the connecting connector, and micro-nano bubble water can be introduced into the second flow channel. In addition, the design of the first annular edge helps to achieve a stable installation of the first block in the outer casing.

[0030] Furthermore, the edge of the first end port of the housing extends radially inward in a circumferential direction to form a second annular edge. In the initial state, each slider abuts against this second annular edge. The second annular edge securely restrains the injection component in the initial state.

[0031] The technical solution adopted to further solve the third technical problem mentioned above is: a cleaning system, characterized in that it includes a micro-nano bubble water nozzle structure with cleaning function as described above.

[0032] Furthermore, it also includes a water inlet circuit and an air pump for fluidly connecting the external water source with the inlet end of the second flow channel. The water inlet circuit has a water pump and a booster device sequentially arranged along the fluid flow direction, and the air outlet of the air pump is fluidly connected to the inlet end of the airflow channel. When the water pump is turned on, the external water source (usually tap water) is pumped into the booster device, where it forms micro-nano bubble water that flows into the second flow channel. When the water pump is turned off, no micro-nano bubble water flows into the second flow channel. Similarly, when the air pump is turned on, air flows into the airflow channel; when the air pump is turned off, no air is introduced into the airflow channel.

[0033] The technical solution adopted to further solve the fourth technical problem mentioned above is: a water tank, characterized in that it uses the cleaning system described above.

[0034] Compared with the prior art, the advantages of this utility model are as follows: In the initial state, the control component blocks the guide hole, and the micro-nano air-water entering from the inlet end of the second flow channel flows out through the outlet end of the second flow channel and flows into the first flow channel from the inlet end of the first flow channel, and finally sprays out through the spray hole to achieve spray washing. At the same time, the annular gap opens, and the gas in the airflow channel blows out through the annular gap to form an annular air curtain around the spray hole. The formed air curtain can prevent the water from splashing in all directions during micro-nano bubble water spray washing, and can also prevent bubbles from precipitating out of the micro-nano bubble water, which is conducive to improving the spray washing effect of micro-nano bubble water.

[0035] Furthermore, in the initial state, when the spray nozzle is pressed inward relative to the outer shell, the shielding component covers the annular gap, and the guide hole opens. At this time, if micro-nano bubble water is not introduced into the inlet end of the second flow channel, the gas in the airflow channel enters the second and first flow channels through the guide hole, flushing both with airflow and preventing the first and second flow channels from becoming blocked due to dirt. If micro-nano bubble water is introduced into the inlet end of the second flow channel, the airflow introduced from the guide hole can increase the water flow pressure of the micro-nano bubble water sprayed from the spray hole, thereby achieving the spraying and washing of stubborn dirt and obtaining a good spraying and washing effect. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the water tank structure in an embodiment of this utility model;

[0037] Figure 2 for Figure 1 A structural diagram from another direction;

[0038] Figure 3 This is a schematic diagram of the micro-nano bubble water nozzle structure in an embodiment of the present invention;

[0039] Figure 4 This is a cross-sectional view of the micro / nano bubble water nozzle structure in the initial state in an embodiment of this utility model;

[0040] Figure 5 for Figure 4 Enlarged view of section A;

[0041] Figure 6 This is a cross-sectional view of the micro / nano bubble water nozzle structure in the embodiment of this utility model with the annular gap closed;

[0042] Figure 7 for Figure 6 Enlarged view of section B;

[0043] Figure 8 This is a partial exploded view of the micro-nano bubble water nozzle structure in an embodiment of this utility model;

[0044] Figure 9 for Figure 8 A structural diagram from another direction;

[0045] Figure 10 This is an exploded view of the micro-nano bubble water nozzle structure in the embodiment of this utility model;

[0046] Figure 11 for Figure 10 A structural diagram from another direction. Detailed Implementation

[0047] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0048] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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. Since the embodiments disclosed in this utility model can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0049] like Figure 1 and Figure 2 As shown, a water tank includes a tank body 1, on which a cleaning system is provided, and the cleaning system includes, for example, [details omitted]. Figures 3 to 11The micro / nano bubble water nozzle structure shown.

[0050] Furthermore, such as Figures 3 to 11 As shown, the above-mentioned micro-nano bubble water nozzle structure includes a nozzle 2, which includes a cylindrical outer shell 21, a spraying element 22, a shielding element 23, a first block 24, a second flow channel 240, a control element 25, and an elastic element 26.

[0051] Specifically, the jetting element 22 is cylindrical in shape and coaxially inserted into the first end port of the outer casing 21. It can slide back and forth along the axial direction of the outer casing 21 through the guiding engagement between its outer circumferential surface and the inner circumferential surface of the outer casing 21. A circumferential annular gap 32 is formed between the outer circumferential surface of the jetting element 22 and the inner circumferential surface of the outer casing 21. A first flow channel 221 is axially penetrated inside the jetting element 22, and the outlet end of the first flow channel 221 extends to its outer end face to form a jetting hole 222. The shielding element 23 is annular in shape, installed in the outer casing 21, and can circumferentially shield the annular gap 32. The first block 24 is accommodated on one side of the inner cavity of the second end of the outer casing 21 and forms an airflow channel 4 with the side wall on the other side. The inlet end of the airflow channel 4 communicates with the second end port of the outer casing 21, while the outlet end communicates with the annular gap 32. The second flow channel 240 extends axially through the first block 24 along the outer shell 21 and is directly opposite the first flow channel 221. Its outlet end is connected to the inlet end of the first flow channel 221, while its inlet end is connected to the second end port of the outer shell 21. A guide hole 241 communicating with the airflow channel 4 is provided on its side wall. The control member 25 protrudes from the inner end of the injection member 22 and is located in the airflow channel 4, and is used to open and close the guide hole 241. The elastic member 26 is circumferentially sandwiched between the shielding member 23 and the inner end face of the injection member 22.

[0052] Furthermore, in the initial state, the control member 25 blocks the guide hole 241, the blocking member 23 and the spray member 22 have a first axial gap 31, which opens the annular gap 32, and the elastic member 26 is in the initial state. Further, when the spray member 22 is pressed inward relative to the outer casing 21 in the initial state, the spray member 22 moves inward, causing the blocking member 23 to block the annular gap 32. Simultaneously, the control member 25 opens the guide hole 241, and the elastic member 26 is compressed, causing the spray member 22 to tend to move outward relative to the outer casing 21 and return to its original position.

[0053] As can be seen from the above, in this utility model, such as Figure 5As shown, in the initial state, the control component 25 shields the aforementioned guide hole 241. The micro-nano air-water entering from the inlet end of the second flow channel 240 flows out from the outlet end of the second flow channel 240 and flows into the first flow channel 221 from the inlet end of the first flow channel 221, and finally sprays out through the spray hole 222 to achieve spray washing. At the same time, the annular gap 32 opens, and the gas in the airflow channel 4 is blown out through the annular gap 32 to form an annular air curtain around the spray hole 222. The formed air curtain can prevent the water from splashing in all directions during micro-nano bubble water spray washing, and can also prevent bubbles from precipitating out of the micro-nano bubble water, which is beneficial to improving the spray washing effect of micro-nano bubble water. Furthermore, in the initial state, when the spray component 22 is pressed inward relative to the outer shell 21, as Figure 7 As shown, the shielding member 23 blocks the annular gap 32, and the guide hole 241 is open. At this time, if micro-nano bubble water is not introduced into the inlet end of the second flow channel 240, the gas in the airflow channel 4 enters the second flow channel 240 and the first flow channel 221 through the guide hole 241 to flush both, preventing the first flow channel 221 and the second flow channel 240 from being blocked by dirt. If micro-nano bubble water is introduced into the inlet end of the second flow channel 240, the airflow introduced from the guide hole 241 can increase the water flow pressure of the micro-nano bubble water sprayed from the spray hole 222, thereby achieving the spraying and washing of stubborn dirt.

[0054] Furthermore, the control member 25 is a plate protruding from the inner end face of the spray member 22. This plate extends axially along the outer casing 21 and has a control hole 251. In the initial state, the control hole 251 on the control member 25 is offset from the guide hole 241 along the axial direction of the outer casing 21, thereby closing the guide hole 241 on the corresponding side of the control member 25 (e.g., ...). Figure 5 As shown), when the spray nozzle 22 is pressed inward, the spray nozzle 22 moves inward, causing the control hole 251 to align with the guide hole 241, thus opening the guide hole 241 (as shown). Figure 7 (As shown). Thus, as the jetting component 22 slides axially relative to the outer casing 21, on the one hand, the shielding component 23 can open and close the annular gap 32; on the other hand, as the control component 25 moves synchronously, the relative positions of the control hole 251 and the guide hole 241 can change. When the control hole 251 and the guide hole 241 are misaligned, the control component 25 closes the guide hole 241, and when the control component 25 and the guide hole 241 are opposite each other, the guide hole 241 opens.

[0055] Furthermore, the shielding member 23 includes a first annular wall 231 extending axially, the thickness of which matches the aforementioned annular gap 32. For example... Figure 10 and Figure 11As shown, the outer circumferential surface of the aforementioned spraying component 22 is provided with axially extending slide bars 223 at circumferential intervals, while the inner circumferential surface of the aforementioned housing 21 is provided with axially extending slide grooves 211 at circumferential intervals. Each slide groove 211 corresponds to one of the aforementioned slide bars 223, and each slide bar 223 is fitted into the corresponding slide groove 211 and can slide back and forth along the slide groove 211. Figure 10 and Figure 11 As shown, one side of the first annular wall 231 is provided with notches 2310 at circumferential intervals corresponding to the slide bars 223. Each notch 2310 extends axially. In the initial state, when the spray member 22 is pressed inward, the corresponding ends of each slide bar 223 are respectively engaged in the corresponding notches 2310, so that the spray member 22 stops moving and the blocking member 23 blocks the annular gap 32. Through the cooperation and guidance of each slide bar 223 and the corresponding slide groove 211, the spray member 22 can move back and forth smoothly relative to the axial direction of the outer shell 21. And through the cooperation of each notch 2310 on the blocking member 23 and the corresponding slide bar 223, the spray member 22 is limited to the closed state of the annular gap 32, so as to ensure that the spray member 22 is stably kept in the closed state of the annular gap 32.

[0056] Furthermore, such as Figure 10 and Figure 11 As shown, a first thread 2311 is provided circumferentially on the outer peripheral surface of the first annular wall 231, while a second thread 212 is provided on the inner peripheral surface of the outer shell 21 to form a threaded connection with the first thread 2311. Furthermore, as... Figure 7 As shown, the side edge of the first annular wall 231 extends radially inward along the circumferential direction to form a second annular wall 232. The elastic element 26 is a spring, which is circumferentially clamped between the second annular wall 232 and the inner end face of the spraying element 22. The threaded connection of the first thread 2311 and the second thread 212 enables the shielding element 23 to be securely installed inside the housing 21. At the same time, the second annular wall 232 enables the elastic element 26 to be securely installed. When the pressure applied to the spraying element 22 is removed while the annular gap 32 is closed, the elastic element 26 can better exert its elastic force to reset the spraying element 22 to its initial state.

[0057] like Figure 5 As shown, a grid 5 is radially spaced between the first flow channel 221 and the second flow channel 240. The grid 5 helps stabilize the micro-nano bubble water flowing into the second flow channel 240 and the first flow channel 221, preventing gas from escaping from the micro-nano bubble water. Preferably, the radius of the second flow channel 240 increases towards the grid 5, while the radius of the first flow channel 221 generally increases towards the grid 5, thereby better ensuring the stability of the micro-nano bubble water and thus ensuring the spraying effect of the micro-nano bubble water.

[0058] In this embodiment, the cross-section of the first block 24 is chamfered (e.g., ...). Figure 10 and Figure 11 As shown, the first block 24 is arranged along the axial direction of the outer casing 21, and its arc-shaped outer side is circumferentially attached to the inner circumferential surface of the corresponding side of the second end of the outer casing 21 along the length direction. The other planar outer side and the inner circumferential surface of the other side of the second end of the outer casing 21 form the airflow channel 4, and the guide hole 241 is provided. On the one hand, this helps to achieve a stable installation of the first block 24 in the outer casing 21, and on the other hand, it can better form an airflow channel 4 inside the outer casing 21. At the same time, when the guide hole 241 is open, the gas in the airflow channel 4 can smoothly enter the second flow channel 240 through the guide hole 241.

[0059] Furthermore, such as Figure 5 and Figure 7 As shown, a first connecting sleeve 242 extending axially is provided on the end face of the first block 24, while a second connecting sleeve 227 is provided on the end face of the aforementioned spray member 22. The first connecting sleeve 242 and the second connecting sleeve 227 are directly opposite each other and are sleeved together, so that the aforementioned first flow channel 221 and second flow channel 240 are connected. Furthermore, the two are always sleeved together during the movement of the spray member 22 (the two can undergo relative displacement as the spray member 22 moves), and a first sealing ring 6 is always clamped circumferentially at the connection point between the two. By providing the first connecting sleeve 242 on the first block 24 and the second connecting sleeve 227 on the spray member 22, it can be ensured that the first flow channel 221 and the second flow channel 240 remain in a connected state during the movement of the spray member 22, and leakage at the connection point between the two can be avoided.

[0060] Furthermore, such as Figure 3 , Figure 4 , Figure 6 , Figure 8 as well as Figure 9 As shown, it also includes a long strip-shaped connecting joint 7, in which air inlet channels 71 and water inlet channels 72 are arranged side by side, extending along their own length directions. Figure 5 As shown, the edge of the second port of the aforementioned outer casing 21 extends radially inward in the circumferential direction to form a first annular edge 213. One end of the aforementioned first block 24 abuts against the aforementioned shielding member 23, and the other end abuts against the first annular edge 213. The shape of the central hole 2130 of the first annular edge 213 matches the shape of the corresponding end of the aforementioned connecting joint 7 (e.g., Figure 8As shown, the corresponding end of the connector 7 is inserted into the center hole 2130 of the first ring edge 213, so that the outlet end of the air inlet channel 71 in the connector 7 is connected to the inlet end of the airflow channel 4, and the outlet end of the water inlet channel 72 is connected to the inlet end of the second flow channel 240. Gas can be introduced into the airflow channel 4 through the connector 7, and micro-nano bubble water can be introduced into the second flow channel 240. In addition, the design of the first ring edge 213 helps to achieve a stable installation of the first block 24 in the outer casing 21.

[0061] Furthermore, such as Figure 5 As shown, the edge of the first end port of the outer casing 21 extends radially inward in a circumferential direction to form a second annular edge 214. In the initial state, each slider 223 abuts against the second annular edge 214. The second annular edge 214 securely restrains the injection element 22 in the initial state. In this embodiment, specifically, as shown... Figure 10 and Figure 11 As shown, the outer shell 21 includes a cylindrical shell 21a and a sleeve 21b. One end of the shell 21a is provided with the first annular edge 213, and one end of the sleeve 21b is provided with the second annular edge 214. The other end of the shell 21a is threadedly connected to the other end of the sleeve 21b to form the outer shell 21.

[0062] Furthermore, such as Figure 1 As shown, the rear wall of the aforementioned tank 1 has a notch 11 for the micro-nano bubble water nozzle structure to extend into the tank 1 in the front-to-back direction. The aforementioned cleaning system also includes a water inlet channel 12 and an air pump 13 for connecting an external water source to the inlet end of the water inlet channel 72. The water inlet channel 12 is sequentially equipped with a water valve 123, a water pump 121, and a pressurizing device 122 (specifically a pressurizing tank in this embodiment) along the fluid flow direction. The air outlet of the air pump 13 is connected to the inlet end of the aforementioned air inlet channel 71 through an air inlet pipe 14. When the water pump 121 is turned on, the external water source (generally tap water) is pumped into the pressurizing device 122 under the action of the water pump 121. Under the action of the pressurizing device 122, micro-nano bubble water is formed and enters the water channel 72 through the water inlet pipe 15, and then flows into the second flow channel 240. When the water pump 121 is turned off, no micro-nano bubble water flows into the second flow channel 240. Similarly, when the air pump 13 is turned on, air enters the airflow channel 4 through the air intake pipe 14 and the air intake channel 71; when the air pump 13 is turned off, no air enters the airflow channel 4.

[0063] The term "fluid connectivity" as used in this utility model refers to the spatial relationship between two components or parts (hereinafter referred to as the first part and the second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow from the first part along a flow path and / or be transported to the second part. This can be a direct connection between the first part and the second part, or an indirect connection between the first part and the second part through at least one third party. The third party can be a fluid channel such as a pipe, channel, conduit, guide, hole, or groove, or a chamber or combination thereof that allows fluid to flow through.

Claims

1. A micro / nano bubble water nozzle structure, comprising a nozzle (2), characterized in that, The nozzle (2) includes: The outer shell (21) is cylindrical; The injection component (22) is cylindrical in shape and is coaxially inserted into the first end port of the outer casing (21). It can slide back and forth along the axial direction of the outer casing (21) through the guiding fit between its outer peripheral surface and the inner peripheral surface of the outer casing (21). Furthermore, an annular gap (32) is formed between its outer peripheral surface and the inner peripheral surface of the outer shell (21) in the circumferential direction, and a first flow channel (221) is provided in its interior along the axial direction. The outlet end of the first flow channel (221) extends through to its outer end face to form a jet hole (222). The shielding member (23) is in the shape of a ring and is installed in the outer shell (21) and can shield the annular gap (32) in the circumferential direction; The first block (24) is housed in one side of the inner cavity of the second end of the outer shell (21) and forms an airflow channel (4) with the side wall on the other side. The inlet end of the airflow channel (4) is connected to the second end port of the outer shell (21), while the outlet end is connected to the annular gap (32). The second flow channel (240) is disposed in the first block (24) along the axial direction of the outer shell (21) and is directly opposite to the first flow channel (221). Its outlet end is connected to the inlet end of the first flow channel (221), and its inlet end is connected to the second end port of the outer shell (21). Furthermore, a guide hole (241) communicating with the airflow channel (4) is provided on its side wall. A control element (25) protrudes from the inner end of the injection element (22) and is located in the airflow channel (4), and is used to open and close the guide hole (241); and The elastic element (26) is circumferentially sandwiched between the inner end face of the shielding element (23) and the spraying element (22); In the initial state, the control member (25) shields the guide hole (241), and the shielding member (23) and the spray member (22) have a first gap (31) along the axial direction, which opens the annular gap (32). The elastic member (26) is in the initial state. When the spray member (22) is pressed, the spray member (22) moves inward relative to the outer shell (21), which causes the shielding member (23) to shield the annular gap (32). At the same time, the control member (25) opens the guide hole (241), and the elastic member (26) is compressed, which causes the spray member (22) to tend to move outward relative to the outer shell (21) and reset.

2. The micro / nano bubble water nozzle structure as described in claim 1, characterized in that, The control component (25) is a plate protruding from the inner end face of the spray component (22). The plate extends along the axial direction of the outer shell (21) and has a control hole (251). In the initial state, the control hole (251) on the control member (25) is offset from the above-mentioned guide hole (241) along the axial direction of the outer shell (21), so that the corresponding part of the control member (25) closes the guide hole (241). When the spray member (22) is pressed, the spray member (22) moves inward, so that the control hole (251) and the guide hole (241) are opposite to each other, and the guide hole (241) is opened.

3. The micro / nano bubble water nozzle structure as described in claim 1, characterized in that, The shielding member (23) includes a first annular wall (231) extending axially, the thickness of which matches the aforementioned annular gap (32). The outer circumferential surface of the aforementioned spraying component (22) is provided with axially extending slide bars (223) at circumferential intervals, while the inner circumferential surface of the aforementioned outer shell (21) is provided with axially extending slide grooves (211) at circumferential intervals. The slide grooves (211) correspond one-to-one with the aforementioned slide bars (223), and each slide bar (223) is fitted into the corresponding slide groove (211) and can slide back and forth along the slide groove (211). One side of the first annular wall (231) is provided with notches (2310) that correspond one-to-one with the slide bars (223) along the circumferential direction. Each notch (2310) extends axially. In the initial state, when the spraying member (22) is pressed inward, the corresponding end of each slide bar (223) is inserted into the corresponding notch (2310) so that the spraying member (22) stops moving and the blocking member (23) blocks the annular gap (32).

4. The micro / nano bubble water nozzle structure as described in claim 3, characterized in that, The outer circumferential surface of the first annular wall (231) is provided with a first thread (2311) along the circumferential direction, while the inner circumferential surface of the outer shell (21) is provided with a second thread (212) that can form a threaded connection with the first thread (2311). Furthermore, the side edge of the other side of the first ring wall (231) extends radially inward to form a second ring wall (232), and the elastic element (26) is a spring, which is circumferentially sandwiched between the second ring wall (232) and the inner end face of the jetting element (22).

5. The micro / nano bubble water nozzle structure according to any one of claims 1 to 4, characterized in that, A grid (5) is provided radially between the first flow channel (221) and the second flow channel (240).

6. The micro / nano bubble water nozzle structure as described in claim 1, characterized in that, The first block (24) has a circular cross-section and is arranged along the axial direction of the outer shell (21). Its arc-shaped outer side is in contact with the inner circumferential surface of the corresponding side of the second end of the outer shell (21) along the length direction, while the planar outer side and the inner circumferential surface of the other side of the second end of the outer shell (21) form the airflow channel (4) and are provided with the guide hole (241).

7. The micro / nano bubble water nozzle structure as described in claim 6, characterized in that, The first block (24) has an axially extending first connecting sleeve (242) protruding on its end face, and the spraying member (22) has a second connecting sleeve (227) protruding on its end face. The first connecting sleeve (242) and the second connecting sleeve (227) are directly opposite each other and are connected to each other so that the first flow channel (221) and the second flow channel (240) are connected. Furthermore, the two are always connected during the movement of the spraying member (22), and the connection between the two is always clamped with a first sealing ring (6) in the circumferential direction.

8. The micro / nano bubble water nozzle structure as described in claim 6 or 7, characterized in that, It also includes a long strip-shaped connecting joint (7), in which air inlet channel (71) and water inlet channel (72) extending side by side along their own length direction are arranged. The second port of the outer shell (21) extends inward in the circumferential direction to form a radially extending first ring edge (213). One end of the first block (24) abuts against the shield (23) and the other end abuts against the first ring edge (213). The shape of the central hole (2130) of the first ring edge (213) matches the shape of the corresponding end of the connecting joint (7). The corresponding end of the connecting joint (7) is inserted into the central hole (2130) of the first ring edge (213) so that the outlet end of the air intake channel (71) in the connecting joint (7) is connected to the inlet end of the airflow channel (4), and the outlet end of the water inlet channel (72) is connected to the inlet end of the second flow channel (240).

9. The micro / nano bubble water nozzle structure as described in claim 3 or 4, characterized in that, The first end port of the outer shell (21) extends radially inward along the circumferential direction to form a second ring edge (214). In the initial state, each slider (223) abuts against the second ring edge (214).

10. A cleaning system, characterized in that, Including the micro / nano bubble water nozzle structure as described in any one of claims 1 to 9.

11. The cleaning system as described in claim 10, characterized in that, It also includes an inlet water passage (12) and an air pump (13) for fluid communication between an external water source and the inlet end of the second flow channel (240). The inlet water passage (12) is provided with a water pump (121) and a booster device (122) in sequence along the fluid flow direction. The air outlet airflow channel (4) of the air pump (13) is fluidly connected to the inlet end of the air flow channel (4).

12. A water tank, characterized in that, The application uses the cleaning system as described in claim 10 or 11.

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