Air mixing nozzle and jetting device of intelligent toilet

Abstract

The intelligent toilet's air-mixing nozzle disclosed in this utility model has at least one spray channel, which includes a water inlet chamber, an air-mixing chamber, and a rectifying chamber connected sequentially along the water flow direction. The wall of the water inlet chamber has an inlet hole communicating with one water inlet channel and an acceleration hole communicating with the air-mixing chamber. The air-mixing chamber is connected to the outside through an air inlet channel. The rectifying chamber has a spray nozzle. The water inlet chamber of at least one spray channel contains a core coaxial with the acceleration hole, forming a flow gap between the core and the side wall of the water inlet chamber. The air-mixing chamber is a conical cavity coaxial with the acceleration hole and gradually narrowing along the water flow direction. After passing through the flow gap, the water is accelerated and ejected through the acceleration hole, thus forming a scattered water flow directed towards the air-mixing chamber. The air-mixing nozzle of this utility model has the characteristics of simple structure and good air-mixing effect, reducing manufacturing costs and making the sprayed water column more stable. Furthermore, this utility model also discloses a spray-washing device using the above-mentioned air-mixing nozzle.

Description

Technical Field

[0001] This utility model relates to the field of smart toilet technology, and in particular to the air mixing nozzle and spray washing device of smart toilet. Background Technology

[0002] Smart toilets achieve their cleaning function by spraying water onto the body; the component that enables this function is the toilet's nozzle. Making the water jets from the nozzles more comfortable for users is a goal pursued by manufacturers and a market demand.

[0003] In existing technologies, a common practice is to mix air into the water flow to spray bubble water from a nozzle to rinse the body. One method uses an air pump, which is added to the water path to inject air into the water flow. This method increases the cost of an air pump, and the air pump generates additional noise when it is running. Another method uses a specific structure designed on the nozzle. When normal water flows through, a negative pressure is generated at the nozzle position. Under this negative pressure, the surrounding air is drawn into the water flow to form bubble water that is sprayed out.

[0004] For example, the human body washing device for a toilet (CN209817016U) is characterized by: a main body comprising a water flow channel, a centrifugal chamber, a first spray nozzle, and a second spray nozzle connected sequentially along the water flow direction; wherein the water outlet of the centrifugal chamber forms the first spray nozzle; and a flow guiding unit disposed within the centrifugal chamber, the flow guiding unit having an oblique channel or a spiral channel; the water flow generates centrifugal force under the action of the oblique channel or spiral channel, thereby forming a swirling water flow; the swirling water flow is ejected from the first spray nozzle, thereby forming centrifugal scattered water; the second spray nozzle cooperates with the first spray nozzle to generate negative pressure when the water flow passes through; under the action of the negative pressure, outside air mixes into the water flow; the water flow mixed with air is ejected from the second spray nozzle, thereby forming air-mixed bubble water. Therefore, it can be seen that existing flow guiding units require the design of oblique or spiral channels with high precision angles to ensure the formation of swirling water flow, which increases the processing difficulty of the flow guiding unit. In addition, designing oblique or spiral channels will also increase the processing difficulty of the flow guiding unit, thereby increasing the manufacturing cost of the product. Finally, the negative pressure effect generated by the swirling water flow when entering the second jet is not obvious, resulting in poor air mixing effect, which causes the water column ejected from the second jet to vibrate and make noise. Utility Model Content

[0005] In order to overcome the shortcomings and deficiencies of the existing technology, this utility model provides an air mixing nozzle and spray washing device for a smart toilet, which has the characteristics of simple structure and good air mixing effect, so as to reduce manufacturing costs and make the sprayed water column more stable.

[0006] To achieve the above technical objectives, the present invention provides an air-mixing nozzle for a smart toilet, which has at least one spraying channel. The spraying channel includes a water inlet chamber, an air-mixing chamber, and a rectifier chamber that are sequentially connected along the water flow direction. The wall of the water inlet chamber is provided with an inlet hole connected to a water inlet channel and an acceleration hole connected to the air-mixing chamber. The air-mixing chamber is connected to the outside through an air inlet channel. The rectifier chamber is provided with a spray nozzle. The water inlet chamber of at least one spraying channel contains a core coaxial with the acceleration hole. A flow gap is formed between the core and the side wall of the water inlet chamber. The air-mixing chamber is a conical cavity coaxial with the acceleration hole and gradually narrowing along the water flow direction. After the water flows through the flow gap, it is accelerated and sprayed out by the acceleration hole, thereby forming a scattered water flow that is directed towards the air-mixing chamber.

[0007] Preferably, the water inlet is located on the side wall of the water inlet cavity, and the core is provided with a plurality of rectifier ribs extending along the core axis at intervals in the circumferential direction, forming a rectifier channel between two adjacent rectifier ribs, and the rectifier ribs are separated from the circumferential side wall of the water inlet cavity.

[0008] Preferably, the acceleration hole is located on the top wall of the water inlet cavity and is constructed as a tapered hole that gradually narrows along the water flow direction. The water inlet cavity includes a cylindrical cavity coaxially arranged with the acceleration hole and a first tapered cavity that gradually narrows along the water flow direction. The core is located in the cylindrical cavity and extends to the first tapered cavity.

[0009] Preferably, the core includes a cylinder and a cone arranged sequentially along the water flow direction, the cone gradually contracting along the water flow direction.

[0010] Preferably, the rectifying cavity and the mixing cavity are coaxially arranged, and the rectifying cavity is a tapered cavity that gradually narrows along the water flow direction, and the taper of the rectifying cavity is smaller than the taper of the mixing cavity.

[0011] Preferably, one end of the acceleration hole forms a water spray nozzle, and the end of the mixing chamber facing the acceleration hole forms a water-air inlet. The diameter of the water-air inlet is larger than the diameter of the water spray nozzle. The water-air inlet cooperates with the water spray nozzle to generate negative pressure when the water flows through. Under the action of negative pressure, outside air enters the mixing chamber through the air intake channel and mixes with the water flow.

[0012] Preferably, the mixing nozzle includes a detachably connected nozzle cover and nozzle seat, the rectifier chamber and the mixing chamber are disposed on the nozzle cover, the water inlet chamber is disposed on the nozzle seat, and the air inlet channel is disposed between the nozzle cover and the nozzle seat.

[0013] Preferably, the nozzle seat is provided with a mounting groove, the nozzle cover is limited within the mounting groove, the acceleration hole penetrates the bottom wall of the mounting groove, the air intake channel is located between the nozzle cover and the bottom wall of the mounting groove, and the side wall of the mounting groove is provided with a drain hole communicating with the air intake channel.

[0014] Preferably, the air-mixing nozzle has two spray channels, one for posterior washing and the other for feminine washing, and the core is built into the water inlet chamber of the posterior washing channel and / or the water inlet chamber of the feminine washing channel.

[0015] This utility model also discloses a spray washing device for a smart toilet, including a mixing nozzle and a spray bar. The mixing nozzle adopts the mixing nozzle described in any of the above technical solutions, and the mixing nozzle is located at the front end of the spray bar.

[0016] By adopting the above technical solution, this utility model has the following advantages:

[0017] 1. At least one spraying channel of this utility model has a core coaxial with the acceleration hole in its water inlet chamber. A flow gap is formed between the core and the side wall of the water inlet chamber. The mixing chamber is a conical cavity coaxial with the acceleration hole and gradually narrows along the water flow direction. After the water flows through the flow gap, it is accelerated and sprayed out by the acceleration hole, thereby forming a scattered water flow that is directed toward the mixing chamber. When using the mixing nozzle of this application, after the water flows into the water inlet chamber, it flows along the axial direction of the core through the flow gap to the acceleration hole, and is directly sprayed out from the acceleration hole to form a scattered water flow. Since the acceleration hole is coaxially set with the core, the scattered water flow sprayed from the acceleration hole can be more stable and the degree of dispersion can be more controllable. As a result, after the directly sprayed scattered water flow is directed towards the mixing chamber and comes into contact with the large conical section of the mixing chamber, a dense upward water flow is formed. This creates a strong Venturi effect in the conical chamber, resulting in a larger negative pressure area, higher air intake efficiency, and better air mixing effect. This makes the bubbles in the formed bubble water finer and more uniform. Finally, after being rectified and sprayed out through the rectifier chamber, the water column sprayed from the mixing nozzle can be more concentrated and stable, while also suppressing water splashing during rinsing. Finally, in this application, only the core is set in the water inlet chamber at intervals from the side wall of the water inlet chamber. The structure of the core is simpler and the precision is lower, thereby reducing the manufacturing cost of the product.

[0018] 2. The water inlet is located on the side wall of the water inlet chamber. Multiple flow straightening ribs extending axially along the core are spaced circumferentially around the core body. A flow straightening channel is formed between adjacent ribs, and the ribs are separated from the circumferential side wall of the water inlet chamber. By placing the water inlet on the side wall of the water inlet chamber, the water inlet channel can be arranged radially along the water inlet chamber, facilitating the piping layout of the smart toilet. Since water entering through the side wall easily generates disordered eddies within the water inlet chamber, leading to uneven subsequent scattering, multiple flow straightening channels are designed, and the flow straightening ribs are separated from the circumferential side wall of the water inlet chamber. This allows multiple flow straightening channels to be connected, improving anti-clogging capabilities. Furthermore, the flow straightening channels can divide the water flow into multiple laminar flows parallel to the core body's axis, improving the consistency of the water flow direction entering the acceleration hole. This results in a more stable and uniformly distributed circumferential water flow ejected from the acceleration hole, enhancing the subsequent negative pressure suction effect.

[0019] 3. The acceleration orifice is located on the top wall of the inlet chamber and is constructed as a tapered orifice that gradually narrows along the water flow direction. The inlet chamber includes a cylindrical cavity coaxially arranged with the acceleration orifice and a first tapered cavity that gradually narrows along the water flow direction. The core is located inside the cylindrical cavity and extends to the first tapered cavity. This design guides the water flow to smoothly transition into the first tapered cavity by extending the core to the first tapered cavity, avoiding turbulence at the entrance of the first tapered cavity. In addition, the first tapered cavity can also achieve water flow concentration and pre-acceleration, and the tapered orifice can achieve secondary acceleration of the water flow, thereby forming a high-speed scattering water flow that is stably ejected.

[0020] 4. The core consists of a cylinder and a cone arranged sequentially along the water flow direction, with the cone gradually tapering along the water flow direction. This design allows the water to generate a low-pressure adsorption zone as it flows along the cone surface, forcing the water to move closely to the cone surface and condense, thus forming a preliminary condensed jet before entering the acceleration hole. After being accelerated by the acceleration hole, it is ejected to form a stable, scattered water flow.

[0021] 5. The rectifying chamber and the mixing chamber are coaxially arranged. The rectifying chamber is a tapered cavity that gradually narrows along the water flow direction, and the taper of the rectifying chamber is smaller than that of the mixing chamber. This design makes the water jet from the spray nozzle more stable, less prone to shaking, and more concentrated, increasing the water impact force. At the same time, it can also control the scattering area of ​​the scattered water jet from the spray nozzle, making the scattered water jet more uniform.

[0022] 6. The mixing nozzle includes a detachable nozzle cover and a nozzle seat. The rectifying chamber and the mixing chamber are located on the nozzle cover, the water inlet chamber is located on the nozzle seat, and the air inlet channel is located between the nozzle cover and the nozzle seat. This design, by assembling the separately molded nozzle cover and nozzle seat to form the nozzle, reduces the difficulty of nozzle processing and molding, thereby reducing manufacturing costs. In addition, the detachable connection between the nozzle cover and the nozzle seat facilitates users to disassemble the nozzle cover for replacement or cleaning. Finally, the air inlet channel is located between the nozzle cover and the nozzle seat, eliminating the need for separate processing of the air inlet channel, thus further reducing the processing difficulty of the nozzle.

[0023] 7. The nozzle holder has a mounting groove, and the nozzle cover is confined within the mounting groove. The acceleration hole penetrates the bottom wall of the mounting groove, and the air intake channel is located between the nozzle cover and the bottom wall of the mounting groove. The side wall of the mounting groove has a drain hole that communicates with the air intake channel. This design allows residual water in the air intake channel to drain through the drain hole, preventing water accumulation in the nozzle. Simultaneously, residual wetting water on the material surface forms humid air within the semi-enclosed air intake channel, which is less prone to evaporation, mitigating the problem of scale buildup at the acceleration hole outlet and its potential clogging. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the nozzle structure in Embodiment 1 of this utility model;

[0025] Figure 2 This is a schematic diagram of the nozzle explosion in Embodiment 1 of this utility model;

[0026] Figure 3 This is a schematic diagram of the nozzle cover in Embodiment 1 of this utility model;

[0027] Figure 4 This is a schematic diagram of the nozzle seat body in Embodiment 1 of this utility model;

[0028] Figure 5 This is a cross-sectional view of the nozzle in Embodiment 1 of this utility model;

[0029] Figure 6 This is a schematic diagram of the spray washing device in Embodiment 2 of this utility model;

[0030] In the diagram, 001 is the flow gap; 100 is the water inlet chamber; 101 is the water inlet hole; 110 is the acceleration hole; 120 is the cylindrical cavity; 130 is the first conical cavity; 200 is the air mixing chamber; 300 is the rectifier chamber; 301 is the spray nozzle; 400 is the water inlet channel; 500 is the air inlet channel; 600 is the core; 601 is the cylinder; 602 is the cone; and 610 is the rectifier rib.

[0031] 10. Nozzle cap; 11. First positioning hole; 12. Locking protrusion; 13. Anti-foolproof protrusion; 14. Baffle; 15. Air inlet; 20. Nozzle seat body; 21. Mounting groove; 22. First side wall; 23. Boss; 24. Positioning pin; 25. Locking groove; 26. Anti-foolproof groove; 27. Drain hole; 28. Welding rib; 29. ​​Second positioning hole; 30. Nozzle bottom seal; 31. Welding groove; 32. Positioning post; 40. Spray bar. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," and "bottom," etc., which indicate orientation or positional relationship, are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0033] Example 1

[0034] Combination Figures 1 to 5As shown, in this embodiment, the air-mixing nozzle of the smart toilet is provided with two spray channels. Each spray channel includes an inlet chamber 100, an air-mixing chamber 200, and a rectifier chamber 300 connected sequentially along the water flow direction. The wall of the inlet chamber 100 is provided with an inlet hole 101 connected to an inlet channel 400 and an acceleration hole 110 connected to the air-mixing chamber 200. The air-mixing chamber 200 is connected to the outside through an air inlet channel 500. The rectifier chamber 300 is provided with a spray nozzle 301. At least one spray channel's inlet chamber 100 has a core 600 coaxial with the acceleration hole 110 inside. A flow gap 001 is formed between the core 600 and the side wall of the inlet chamber 100. The air-mixing chamber 200 is a conical cavity coaxial with the acceleration hole 110 and gradually narrowing along the water flow direction. After the water flows through the flow gap 001, it is accelerated and sprayed out by the acceleration hole 110, thereby forming a scattered water flow that is directed toward the air-mixing chamber 200.

[0035] When using the mixing nozzle of this embodiment, after the water flows into the inlet chamber 100, it flows along the axial direction of the core 600 to the acceleration hole 110 through the flow gap 001, and is directly sprayed out from the acceleration hole 110 to form a scattered water flow. Since the acceleration hole 110 is coaxially arranged with the core 600, the scattered water flow sprayed from the acceleration hole 110 can be more stable and the degree of dispersion is more controllable. As a result, after the directly sprayed scattered water flow is subsequently shot into the mixing chamber 200 and comes into contact with the large conical section of the mixing chamber 200, a dense upward water flow is formed, which in turn forms a strong Venturi effect in the conical chamber, resulting in a larger negative pressure area and improved air intake efficiency. The higher efficiency and better air mixing effect result in finer and more uniform bubbles in the formed bubble water. Finally, after being rectified and sprayed out through the rectifier cavity 300, the water column sprayed from the air mixing nozzle is more concentrated and stable, while also suppressing water splashing during rinsing. Finally, compared with the existing technology that forms a rotating and scattering water flow through centrifugal force, this application only requires a core 600 spaced apart from the side wall of the water inlet cavity 100, and the acceleration hole 110 is coaxial with the core 600 to form a direct spray scattering water flow. The structure of the core 600 is simpler and the precision requirement is lower, thereby reducing the manufacturing cost of the product.

[0036] In this embodiment, one of the two spray channels is a posterior wash channel and the other is a gynecological wash channel. Both the inlet chamber 100 of the posterior wash channel and the inlet chamber 100 of the gynecological wash channel contain a core 600; or the inlet chamber 100 of the posterior wash channel contains a core 600, while the inlet chamber 100 of the gynecological wash channel does not contain a core 600; or the inlet chamber 100 of the posterior wash channel does not contain a core 600, while the inlet chamber 100 of the gynecological wash channel contains a core 600.

[0037] Taking the example where the water inlet cavity 100 of the posterior wash channel is equipped with a core 600, while the water inlet cavity 100 of the feminine wash channel is not equipped with a core 600, for the convenience of the following description, in this embodiment, the water inlet cavity 100, water inlet hole 101, acceleration hole 110, air mixing cavity 200 and rectifier cavity 300 in the posterior wash channel are respectively defined as: posterior wash water inlet cavity 100, posterior wash water inlet hole 101, posterior wash acceleration hole 110, posterior wash air mixing cavity 200 and posterior wash rectifier cavity 300, and the water inlet cavity 100, water inlet hole 101, acceleration hole 110, air mixing cavity 200 and rectifier cavity 300 in the feminine wash channel are respectively defined as: feminine wash water inlet cavity 100, feminine wash water inlet hole 101, feminine wash acceleration hole 110, feminine wash air mixing cavity 200 and feminine wash rectifier cavity 300.

[0038] In this embodiment, a posterior wash water inlet hole 101 is provided on the side wall of the posterior wash water inlet cavity 100. At this time, the water inlet channel 400 connected with the posterior wash water inlet hole 101 can extend radially along the posterior wash water inlet cavity 100 to facilitate the pipeline layout of the smart toilet. However, this will cause water to flow radially into the posterior wash water inlet cavity 100 through the posterior wash water inlet hole 101, which is prone to generating disordered eddies in the posterior wash water inlet cavity 100, resulting in uneven subsequent scattering. To address the aforementioned technical issues, in this embodiment, the core 600 is provided with a plurality of rectifier ribs 610 extending axially along the core 600 at uniform intervals in the circumferential direction. The rectifier ribs 610 are arranged radially along the posterior wash water inlet cavity 100 and are separated from the inner sidewall of the posterior wash water inlet cavity 100. A rectifier channel extending axially along the core 600 is formed between two adjacent rectifier ribs 610. By separating the rectifier ribs 610 from the inner sidewall of the posterior wash water inlet cavity 100, multiple rectifier channels can be connected, improving the anti-clogging capability. In addition, the rectifier channel can divide the water flow into multiple laminar flows parallel to the axial direction of the core 600, thereby improving the consistency of the water flow direction entering the posterior wash acceleration hole 110, making the scattered water flow ejected from the posterior wash acceleration hole 110 more stable and the circumferential distribution of the scattered water flow more uniform, thus improving the subsequent negative pressure air intake effect.

[0039] In this embodiment, the posterior wash water inlet cavity 100 includes a cylindrical cavity 120 coaxially arranged with the posterior wash acceleration hole 110 and a first conical cavity 130 that tapers along the water flow direction. A core 600 is disposed within the cylindrical cavity 120 and extends to the first conical cavity 130. The posterior wash acceleration hole 110 is located on the top wall of the posterior wash water inlet cavity 100 and is configured as a tapered hole that tapers along the water flow direction. The first conical cavity 130 connects the cylindrical cavity 120 and the posterior wash acceleration hole 110, and the taper of the conical hole is smaller than the taper of the first conical cavity 130. This design, with the core 600 extending to the first conical cavity 130, guides the water flow smoothly into the first conical cavity 130, avoiding turbulence at the entrance of the first conical cavity 130. Furthermore, the first conical cavity 130 also enables water flow concentration and pre-acceleration, and the conical hole enables secondary acceleration of the water flow, thereby forming a stable high-speed scattering water flow.

[0040] Furthermore, the core 600 in this embodiment includes a cylinder 601 and a cone 602 arranged sequentially along the water flow direction, with the cone 602 gradually contracting along the water flow direction. This design allows the cone 602 to create a low-pressure adsorption zone as the water flows along its conical surface, forcing the water to adhere tightly to the conical surface and condense, thus forming a preliminary condensed jet before entering the acceleration hole 110. After acceleration by the acceleration hole 110, the jet is ejected to form a stable, scattered water flow.

[0041] Furthermore, in this embodiment, the rectifier cavity 300 and the mixing cavity 200 are coaxially arranged. The rectifier cavity 300 is a tapered cavity that gradually narrows along the water flow direction. The taper of the rectifier cavity 300 is smaller than that of the mixing cavity 200. The end of the rectifier cavity 300 facing away from the mixing cavity 200 forms the rinsing nozzle. This design makes the water column ejected from the rinsing nozzle more stable, less prone to shaking, and more concentrated, increasing the water impact force. At the same time, it can also control the scattering area of ​​the scattered water flow ejected from the rinsing nozzle, making the scattered water flow more uniform.

[0042] It should be noted that, whether it is the posterior wash channel or the feminine wash channel, the end of the acceleration hole 110 facing away from the water inlet chamber 100 forms a water spray nozzle, and the end of the mixing chamber 200 facing the acceleration hole 110 forms a water-air inlet. The diameter of the water-air inlet is larger than the diameter of the water spray nozzle. The water-air inlet and the water spray nozzle are separated. The air intake channel 500 is located between the mixing chamber 200 and the acceleration hole 110. In this way, after the scattered water flow sprayed from the acceleration hole 110 flows into the mixing chamber 200, it is combined with the water spray nozzle through the water-air inlet to generate negative pressure when the water flows through. Under the action of negative pressure, the outside air enters the mixing chamber 200 through the air intake channel 500 and mixes with the water flow.

[0043] In this embodiment, the axis of the posterior wash water inlet chamber 100 is parallel to the axis of the feminine wash water inlet chamber 100. The feminine wash acceleration hole 110 is a cylindrical hole, and its axis is inclined relative to the axis of the feminine wash water inlet chamber 100, gradually moving away from the posterior wash acceleration hole 110 along the water flow direction. The feminine wash air mixing chamber 200 and the feminine wash rectifier chamber 300 are both coaxially arranged with the feminine wash acceleration hole 110, and both are tapered cavities that gradually narrow along the water flow direction. The tapering of the feminine wash air mixing chamber 200 is... The taper of the feminine wash rectifier cavity 300 is greater than that of the feminine wash rectifier cavity 300. As a result, the water flow is formed by the unbalanced resistance caused by the inner wall of the water channel formed by the feminine wash inlet cavity 100 and the inclined feminine wash acceleration hole 110. The water flow forms a slightly dispersed water flow that is sprayed out from the feminine wash acceleration hole 110. When the water flow reaches the large conical section of the feminine wash mixing cavity 200, a negative pressure is formed at the air gap. The surrounding air is drawn into the feminine wash mixing cavity 200 through the air inlet channel 500 and mixed. After being rectified by the feminine wash rectifier cavity 300, a stable bubble water is sprayed out.

[0044] To form the air intake channel 500, the mixing nozzle in this embodiment includes a detachably connected nozzle cover 10 and nozzle seat. A rectifier cavity 300 and a mixing cavity 200 are disposed on the nozzle cover 10, i.e., the diaper rectifier cavity 300, the diaper mixing cavity 200, the feminine wash rectifier cavity 300, and the feminine wash mixing cavity 200 are disposed on the nozzle cover 10. The nozzle seat includes a nozzle seat body 20 and a nozzle bottom seal 30, which are welded together. A water inlet cavity 100 is disposed on the nozzle seat body 20, i.e., the diaper water inlet cavity 100 and the feminine wash water inlet cavity 100 are disposed on the nozzle seat body 20. The core 600 and the rectifier rib 610 are disposed on the nozzle bottom seal 30. A gap is provided between the nozzle cover 10 and the nozzle seat body 20, and this gap forms the air intake channel 500. This design, by assembling the nozzle cap 10 and the nozzle seat separately to form the nozzle, reduces the difficulty of nozzle processing and thus lowers manufacturing costs. In addition, the nozzle cap 10 and the nozzle seat are detachably connected, which makes it convenient for users to disassemble the nozzle cap 10 for replacement or cleaning. Finally, the air intake channel 500 is formed by the gap between the nozzle cap 10 and the nozzle seat, eliminating the need for separate processing of the air intake channel, thereby further reducing the processing difficulty of the nozzle.

[0045] To achieve a detachable connection between the nozzle cover 10 and the nozzle seat, such as Figure 2 As shown, in this embodiment, the top of the nozzle seat body 20 is provided with a mounting groove 21. The mounting groove 21 has opposing first sidewalls 22, which extend along the width direction of the nozzle. An opening is formed between the two first sidewalls 22. The bottom wall of the mounting groove 21 is provided with two bosses 23 and several positioning pins 24. Two acceleration holes 110 are respectively provided through the two bosses 23 and communicate with the two water inlet chambers 100 on the nozzle seat. The inner side of the first sidewall 22 is provided with a slot 25. Figure 3 As shown, the nozzle cover 10 is provided with a first positioning hole 11 that engages with the positioning pin 24, and a locking protrusion 12 is provided on the corresponding outer side surface of the nozzle cover 10. The locking protrusion 12 engages with the locking groove 25 to limit the nozzle cover 10 within the mounting groove 21, making assembly simple and convenient. In addition, one of the first side walls 22 is provided with a foolproof groove 26, and a foolproof protrusion 13 is provided on the corresponding outer side surface of the nozzle cover 10. The foolproof protrusion 13 is inserted into the foolproof groove 26 to prevent the nozzle cover 10 from being installed backwards.

[0046] It is understood that in other embodiments of this utility model, the nozzle cover and the nozzle seat can also be detachably connected by screws.

[0047] In this embodiment, the bottom of the nozzle cover 10 is provided with two baffles 14 that are spaced apart and extend downward. Two protrusions 23 are located between the two baffles 14. The baffles 14 extend along the length of the nozzle seat body 20. The baffles 14 are provided with air inlets 15. The two baffles 14 and the two first sidewalls 22 form a semi-closed cavity. The two baffles 14 are supported on the bottom wall of the mounting groove 21 so that the water-air inlet of the mixing chamber 200 is higher than the spray nozzle of the acceleration hole 110, thereby separating the water-air inlet of the mixing chamber 200 from the spray nozzle of the acceleration hole 110 to form a gap. The air inlet 15 communicates with the gap to form an air intake channel 500. In addition, the sidewall of the mounting groove is provided with a drain hole 27 that communicates with the air intake channel 500. Preferably, the drain hole 27 is provided on the first sidewall 22 away from the posterior washing channel. The drain hole 27 is located between the two baffles 14 so that the drain hole 27 communicates with the air intake channel 500. With this design, residual water in the air intake channel 500 can be discharged through the drain hole 27, preventing water accumulation in the nozzle; at the same time, the wetting water remaining on the material surface forms humid air in the semi-enclosed cavity that is not easy to evaporate, which reduces the phenomenon that water evaporates at the water nozzle of the acceleration hole 110, causing scale to precipitate and block the acceleration hole 110.

[0048] Furthermore, in this embodiment, the nozzle seat body 20 has two independent water inlet channels 400 at its bottom. One water inlet channel communicates with the posterior wash water inlet chamber 100, and the other water inlet channel 400 communicates with the feminine wash water inlet chamber 100. The bottoms of both water inlet chambers 100 and the two independent water inlet channels 400 are all open. The bottom of the nozzle seat body 20 has raised welding ribs 28 and second positioning holes 29 around the water inlet channels 400. Figure 2 As shown, the nozzle bottom seal 30 is provided with a welding groove 31 that corresponds to the welding rib 28. A positioning post 32 that mates with the second positioning hole 29 is provided around the welding groove 31. By cooperating with the positioning post 32, the nozzle seat body 20 and the nozzle bottom seal 30 can be positioned during welding to ensure that the welding rib 28 and the welding groove 31 are aligned and welded.

[0049] During assembly, such as Figures 2 to 5 As shown, the nozzle seat body 20 and the nozzle bottom seal 30 are welded together. Positioning is achieved through the second positioning hole 29 and the positioning pin 32. The welding rib 28 and the welding groove 31 are welded together to seal the water inlet channel 400. The nozzle cover 10 is fastened onto the nozzle seat body 20. The first positioning hole 11 and the positioning pin 24 ensure the coaxiality of the acceleration hole 110 and the mixing chamber 200. The assembly of the nozzle cover 10 and the nozzle seat is completed under the snapping action of the slot 25 and the protrusion 12.

[0050] When a user uses the posterior wash function, such as Figure 5As shown, after the water flows through the water inlet channel 400 to the posterior wash water inlet chamber 100, under the action of the core 600, the rectifier 610, and the posterior wash acceleration hole 110, a slightly dispersed water flow is formed and sprayed directly out of the posterior wash acceleration hole 110. When the water flow reaches the posterior wash mixing chamber 200, the water-air inlet and the spray nozzle cooperate to generate negative pressure when the water flow passes through. The surrounding air is drawn into the posterior wash mixing chamber 200 through the air inlet channel 500 and mixed. After being rectified by the posterior wash rectifier chamber 300, stable bubble water is sprayed out.

[0051] When a user uses the feminine wash function, such as Figure 5 As shown, after the water flows through another water inlet channel 400 to the feminine wash water inlet chamber 100, due to the inclination of the axis of the feminine wash acceleration hole 110 relative to the axis of the feminine wash water inlet chamber 100, the water flow forms a slightly dispersed water flow sprayed out from the feminine wash acceleration hole 110 under the action of the unbalanced resistance caused by the inner wall of the water channel formed by the feminine wash water inlet chamber 100 and the inclination of the feminine wash acceleration hole 110. When the water flow reaches the feminine wash air mixing chamber 200, the water air inlet and the spray nozzle cooperate to generate negative pressure when the water flow passes through, and the surrounding air is drawn into the feminine wash air mixing chamber 200 through the air inlet channel 500 and mixed. After being rectified by the feminine wash rectifier chamber 300, stable bubble water is sprayed out.

[0052] After the user finishes using the cleaning function, the water remaining in the nozzle is discharged through the drain hole 27 between the nozzle cover 10 and the nozzle seat body 20, preventing water accumulation in the nozzle. At the same time, the wetting water remaining on the material surface will form humid air in the semi-closed cavity formed between the nozzle cover 10 and the nozzle seat body 20, which is not easy to evaporate. This reduces the phenomenon of scale precipitation and clogging of the nozzle caused by the evaporation of water at the spray nozzle of the acceleration hole 110.

[0053] It is understood that in other embodiments of this utility model, the bottom wall of the water inlet chamber is provided with a water inlet hole, the core is installed in the water inlet chamber by a bracket, and the water inlet channel extends along the axial direction of the core so that the water flow in the water inlet channel can flow into the water inlet chamber along the axial direction of the core through the water inlet hole, thus eliminating the need for a flow straightener.

[0054] It is understood that in other embodiments of this utility model, the air-mixing nozzle has only one spray channel, which can be a posterior wash channel or a feminine wash channel. When the spray channel is a feminine wash channel, the feminine wash acceleration hole is coaxially arranged with the core in the feminine wash water inlet chamber.

[0055] Example 2

[0056] Combination Figure 6This embodiment also provides a spray washing device for a smart toilet, including a mixing nozzle and a spray rod 40. The mixing nozzle is a mixing nozzle with a water inlet hole located on the side wall of the water inlet chamber. That is, the water inlet channel of the mixing nozzle extends radially along the water inlet chamber. The mixing nozzle is welded to the front end of the spray rod 40. At this time, the axis of the water inlet chamber 100 is perpendicular to the extension direction of the spray rod. The axis of the feminine wash acceleration hole 110 is inclined relative to the axis of the feminine wash water inlet chamber 100 and gradually moves away from the buttock wash acceleration hole 110 along the water flow direction.

[0057] It is understood that in other embodiments of this utility model, if the water inlet channel extends along the axial direction of the water inlet chamber, then the spray bar also extends along the axial direction of the water inlet chamber.

[0058] In addition to the preferred embodiments described above, there are other embodiments of this utility model. Those skilled in the art can make various changes and modifications based on this utility model. As long as they do not depart from the spirit of this utility model, they should all fall within the scope defined in the claims of this utility model.

Claims

1. A mixing nozzle for a smart toilet, comprising at least one spray channel, the spray channel including a water inlet chamber, a mixing chamber, and a rectifying chamber sequentially connected along the water flow direction; the wall of the water inlet chamber is provided with a water inlet hole communicating with a water inlet channel and an acceleration hole communicating with the mixing chamber; the mixing chamber is connected to the outside through an air inlet channel; the rectifying chamber is provided with a spray nozzle, characterized in that... At least one spray channel has a core coaxial with the acceleration hole in its water inlet chamber. A flow gap is formed between the core and the side wall of the water inlet chamber. The air mixing chamber is a conical cavity coaxial with the acceleration hole and gradually narrowing along the water flow direction. After the water flows through the flow gap, it is accelerated and ejected by the acceleration hole, thereby forming a scattered water flow that is directed toward the air mixing chamber.

2. The air mixing jet of the intelligent toilet according to claim 1, wherein, The water inlet is located on the side wall of the water inlet cavity. The core is provided with a plurality of rectifier ribs extending along the core axis at intervals in the circumferential direction. A rectifier channel is formed between two adjacent rectifier ribs. The rectifier ribs are separated from the circumferential side wall of the water inlet cavity.

3. The air mixing jet of the intelligent toilet according to claim 1, wherein The acceleration hole is located on the top wall of the water inlet cavity and is constructed as a tapered hole that gradually narrows along the water flow direction. The water inlet cavity includes a cylindrical cavity coaxially arranged with the acceleration hole and a first tapered cavity that gradually narrows along the water flow direction. The core is located in the cylindrical cavity and extends to the first tapered cavity.

4. The air mixing jet of the intelligent toilet according to claim 1, wherein The core includes a cylinder and a cone arranged sequentially along the water flow direction, and the cone gradually tapers along the water flow direction.

5. The air mixing jet of the intelligent toilet according to claim 1, wherein The rectifying cavity and the mixing cavity are coaxially arranged. The rectifying cavity is a tapered cavity that gradually narrows along the water flow direction. The taper of the rectifying cavity is smaller than that of the mixing cavity.

6. The air mixing jet of the intelligent toilet according to claim 5, wherein One end of the acceleration hole forms a water spray nozzle, and the end of the mixing chamber facing the acceleration hole forms a water-air inlet. The diameter of the water-air inlet is larger than the diameter of the water spray nozzle. The water-air inlet and the water spray nozzle cooperate to generate negative pressure when the water flows through. Under the action of negative pressure, outside air enters the mixing chamber through the air intake channel and mixes with the water flow.

7. The air mixing jet of the intelligent toilet according to claim 1, wherein The mixing nozzle includes a detachably connected nozzle cover and nozzle seat. The rectifier chamber and mixing chamber are located on the nozzle cover, the water inlet chamber is located on the nozzle seat, and the air inlet channel is located between the nozzle cover and the nozzle seat.

8. The air mixing jet of the intelligent toilet according to claim 7, wherein, The nozzle seat is provided with a mounting groove, the nozzle cover is limited within the mounting groove, the acceleration hole penetrates the bottom wall of the mounting groove, the air intake channel is located between the nozzle cover and the bottom wall of the mounting groove, and the side wall of the mounting groove is provided with a drain hole communicating with the air intake channel.

9. The air mixing jet of the intelligent toilet according to claim 1, wherein The air-mixing nozzle is provided with two spray channels, one of which is a posterior wash channel and the other is a gynecological wash channel. The core is built into the water inlet chamber of the posterior wash channel and / or the water inlet chamber of the gynecological wash channel.

10. A spray device of a smart toilet comprising an air mixing nozzle and a spray rod, characterized in that, The gas mixing nozzle is the gas mixing nozzle according to any one of claims 1 to 9, and the gas mixing nozzle is located at the front end of the spray bar.

Images