Water outlet nozzle structure

Abstract

The utility model relates to the technical field of drinking water equipment, and discloses a water outlet nozzle structure, which comprises a cavity for liquid to circulate and provided with a water outlet and a first steam exhaust port at the bottom; the cold water pipe is communicated with the cavity and is used for conveying cold water; one end of the first flow path is connected with a hot water pipe used for inputting hot water and steam, and the other end of the first flow path extends to be communicated with the cavity; the flow path section area of the first flow path is smaller than that of the cavity, and a second steam exhaust port is formed in the first flow path. The design of limiting diversion and segmented steam exhaust is adopted, so that steam can be intensively and efficiently exhausted outwards through the first steam exhaust port in the first flow path, the steam exhaust effect is enhanced, the amount of steam flowing into the cavity subsequently is reduced to the maximum extent, the steam spraying phenomenon during water outlet is reduced, the interference of the steam on the water outlet type of the water outlet is reduced, and the service life of the water outlet is prolonged. The water outlet stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a water spout structure. Background Art

[0002] Instant water dispensers integrate hot and cold water supply functions. Users can choose the appropriate water outlet temperature according to their personal needs, which significantly improves the efficiency of use and meets the needs of modern fast-paced life. Therefore, they have gradually been widely welcomed by consumers and have become a leading product in the market.

[0003] When an instant hot water dispenser is heated, it uses a heating element to heat the water rapidly, causing the water to boil rapidly and generate high-temperature steam. When the water is discharged, the high-temperature steam will enter the water outlet of the water dispenser together with the hot water. In order to prevent the water outlet from spraying steam when receiving water and causing a safety hazard, a water vapor separation structure and a steam exhaust port are usually set in the water outlet of the existing instant hot water dispenser. The water vapor separation structure separates the hot water from the water vapor, and the separated high-temperature steam is discharged separately through the steam exhaust port.

[0004] With the development of heating technology, in order to meet the needs of multiple people for fast drinking water, high-power instant hot water dispensers with fast heating speed, high water output efficiency and high temperature limit have gradually appeared on the market. However, with the increase in heating speed, water output temperature and water output flow rate, the steam flow rate and air pressure generated by heating when discharging water also increase synchronously. In addition, since existing instant hot water dispensers usually adopt a dual-pipe water outlet design, that is, the water vapor separation and confluence of hot water and warm water occur in the same large-volume water outlet chamber, these factors work together to result in: when receiving water, the high-temperature steam generated by heating the water will rush into the water outlet chamber at a high flow rate under the action of high air pressure, and escape irregularly therein, so that part of the steam can pass through the exhaust port and be discharged outward through the water outlet, thereby disturbing the water flow, causing the water flow to swing locally and drift, and even causing water droplets to splash, affecting user experience and posing a safety hazard. Utility Model Content

[0005] The utility model aims to provide a water outlet structure to solve the above technical problems.

[0006] To achieve the above objectives, the following technical solutions are provided:

[0007] In the first aspect, the utility model provides a water outlet structure, comprising: a cavity for liquid circulation and a water outlet and a first steam exhaust port are provided at the bottom of the cavity; a cold water pipe connected to the cavity for transporting cold water; a first flow path, one end of which is connected to a hot water pipe for inputting hot water and steam, and the other end extends to connect to the cavity; the flow path cross-sectional area of ​​the first flow path is smaller than the flow path cross-sectional area of ​​the cavity, and a second steam exhaust port is provided in the first flow path.

[0008] As an optional solution for the water outlet structure provided by the present invention, the first flow path extends obliquely downward to the end of the cavity, and the end of the first flow path extends longitudinally to form an air blocking cavity, and the top of the side wall of the air blocking cavity is provided with a flow limiting port connected to the cavity, and the air blocking cavity is used to be filled with hot water to liquid-seal the first flow path and force the steam in the first flow path to be discharged from the first steam exhaust port.

[0009] As an optional solution for the water outlet structure provided by the utility model, a water impact body is provided in the air blocking cavity, and the water impact body is aligned with the flow limiting port, and is used for hot water impact to form a water wall and thereby prevent steam from passing through the flow limiting port.

[0010] As an optional solution for the water outlet structure provided by the present invention, a plurality of water retaining columns are longitudinally extended at the bottom of the inner wall of the first flow path to blow away the hot water for water vapor separation; the top of the water retaining column is spaced apart and aligned with the top of the inner wall of the first flow path, and the first steam exhaust port is formed at the top of the water retaining column and longitudinally penetrates the first flow path.

[0011] As an optional solution for the water outlet structure provided by the present invention, the water outlet structure includes a bottom shell and a plurality of cover bodies, the bottom shell is inwardly recessed to form a plurality of groove bodies, and the cover bodies seal and cover the groove bodies to form the cavity and the first flow path.

[0012] As an optional solution of the water outlet structure provided by the present invention, it also includes a second flow path, one end of which is connected to the cold water pipe, and the other end of which extends parallel to the first flow path and is connected to the cavity.

[0013] As an optional solution for the water outlet structure provided by the utility model, the water outlet includes a first water outlet and at least one group of second water outlets, the first water outlet extends to the outside of the cavity to form a water outlet pipe, the second water outlet is adjacent to the first water outlet and connected to the outer wall of the water outlet pipe, and a flow limiting structure is provided in the cavity to limit the flow of water into the second water outlet.

[0014] As an optional solution for the water outlet structure provided by the present invention, the flow limiting structure includes a flow limiting plate arranged at the bottom of the cavity, and the flow limiting plate separates the bottom of the cavity into a first chamber and a second chamber; the first water outlet is arranged at the bottom of the first chamber, and the second water outlet is arranged at the bottom of the second chamber, and the cold water pipe and the hot water pipe are connected to the first chamber.

[0015] As an optional solution to the water outlet structure provided by the present invention, the inner wall of the second water outlet extends toward the outer wall of the water outlet pipe to form a plurality of guide teeth.

[0016] As an optional solution to the water outlet structure provided by the present invention, the bottom of the first chamber is inclined downward from the input end of the water inlet pipe toward the first water outlet, and the bottom of the second chamber is inclined downward from the flow limiting plate toward the second water outlet.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. On the basis of the cavity, a first flow path with a smaller cross-sectional area is set up, and the "limited flow guide" is adopted.

[0019] The "staged steam exhaust" design limits, gathers, and guides the steam carried by the hot water through the first flow path, maintaining steam pressure and limiting irregular and disordered steam escape. This allows the steam to be discharged more concentratedly and efficiently through the first steam exhaust port in the first flow path, enhancing the steam exhaust effect, minimizing the amount of steam that subsequently flows into the cavity, reducing the occurrence of steam spraying during water discharge, and reducing the interference of steam on the water pattern at the outlet, thereby improving water discharge stability.

[0020] 2. An air blocking cavity is set at the end of the first flow path, and the air blocking cavity is filled with hot water to liquid-seal the first flow path, forcing the steam in the first flow path to be discharged from the first steam exhaust port, thereby improving the steam discharge efficiency, reducing the amount of steam flowing into the cavity, and improving the water outlet effect of the water outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0022] Figure 1 is an exploded view of the water outlet structure provided in this embodiment;

[0023] Figure 2 This is a schematic structural diagram of the water outlet structure provided in this embodiment without being connected to the cover body;

[0024] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 It is a cross-sectional view of the water outlet structure provided in this embodiment.

[0026] In the picture:

[0027] 1. Shell; 11. Bottom shell; 12. Cover; 13. Manifold; 131. Guide teeth; 132. Guide slope; 2. Cold water pipe; 3. Hot water pipe; 4. Cavity; 41. First water outlet; 42. Second water outlet;

[0028] 43. flow limiting plate; 44. first chamber; 45. second chamber; 46. buffer waterway; 461. buffer surface;

[0029] 462. Steering part; 47. Water outlet pipe; 5. First flow path; 51. Air blocking chamber; 511. Water impact body; 512. Flow limiting port; 52. Water retaining column; 6. First steam exhaust port; 7. Second steam exhaust port; 8. Second flow path. DETAILED DESCRIPTION

[0030] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed or detachable connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] Example 1:

[0034] refer to Figures 1 to 4A water outlet structure, which is the same as the water outlet of an existing instant hot water dispenser, includes: a shell 1, to which a cold water pipe 2 and a hot water pipe 3 are connected. A cavity 4 for liquid circulation is formed inside the shell 1, and the cavity 4 is connected to the cold water pipe 2 and the hot water pipe 3. A water outlet is provided at the bottom of the cavity 4, and the shell 1 has a steam exhaust port connected to the cavity 4. The water outlet is used for liquid outflow, and the steam exhaust port is used to discharge high-temperature steam to the outside.

[0035] When receiving water, if boiling water is needed, the hot water pipe 3 independently transports hot water and high-temperature steam to the cavity 4, the hot water flows through the cavity 4 and is discharged through the water outlet for the user to drink, and the high-temperature steam is separated from the hot water and discharged outwardly through the steam exhaust port; if cold water is needed, the cold water pipe 2 independently transports cold water to the cavity 4, and the cold water flows through the cavity 4 and is directly discharged outwardly through the water outlet; if warm water is needed, the cold water pipe 2 and the hot water pipe 3 respectively transport cold water, hot water and high-temperature steam to the liquid outlet pipe, and the cold water and hot water flow through the cavity 4 in a certain proportion and mix to form warm water of a specified temperature, which is then discharged through the water outlet. Similarly, the high-temperature steam is separated from the warm water and discharged outwardly through the steam exhaust port.

[0036] Considering the problems in the application of existing high-power instant hot water dispensers, such as incomplete steam separation and discharge, steam leakage at the water outlet, and poor water flow stability, the improvements of this application are:

[0037] A first flow path 5 for pre-separation of hot water and steam is also formed on the shell 1. One end of the first flow path 5 is connected to and communicates with the hot water pipe 3, and the other end of the first flow path 5 extends obliquely downward from the hot water pipe 3 to communicate with the cavity 4. The flow path cross-sectional area of ​​the first flow path 5 is smaller than the flow path cross-sectional area of ​​the cavity 4. Here, the flow path cross-sectional area should be understood as the cross-sectional area of ​​the passage space perpendicular to the flow direction of the fluid when the liquid or gas fluid flows through a certain passage space. The exhaust port includes a first steam exhaust port 6 arranged in the first flow path 5 and a second steam exhaust port 7 arranged in the cavity 4.

[0038] This application adopts a "limited flow diversion + segmented steam exhaust" design. When a user uses hot or warm water, the hot water flows sequentially through the first flow path 5 and the cavity 4, and then is discharged outward through the water outlet. During this process, because the cross-sectional area of ​​the first flow path 5 is smaller than that of the cavity 4, the steam carried by the hot water can be limited, gathered, and diverted without affecting the transfer of hot water and steam, maintaining steam pressure and limiting irregular and disordered steam escape. This allows the steam to be discharged outward more concentratedly and efficiently through the first steam exhaust port 6 within the first flow path 5, enhancing the steam exhaust effect and minimizing the amount of steam subsequently flowing into the cavity 4. This reduces the occurrence of steam spraying when water is discharged from the water outlet, reduces the interference of steam on the water pattern at the water outlet, avoids localized oscillation, drift, and splashing of the water flow, and improves water discharge stability. In particular, when the water outlet structure of this embodiment is applied to instant hot water dispensers, it can effectively improve the steam emission problem of high-power instant hot water dispensers under high pressure and high flow rates.

[0039] In addition, by arranging a second steam exhaust port 7 in the cavity 4, the remaining steam entering the cavity 4 can be discharged at the bottom, further reducing the disturbance of the water flow by the steam; the advantage of the above-mentioned "first flow path 5 extending obliquely downward and connecting to the cavity 4" is that: when the mixture formed by hot water and steam enters the first flow path 5 inclined downward, due to the effect of gravity, the hot water tends to flow along the bottom of the first flow path 5, while the steam tends to rise due to its lower density. This natural separation phenomenon will be enhanced in the first flow path 5 with a smaller volume, so that most of the steam can be concentrated and pre-discharged through the first steam exhaust port 6 before reaching the cavity 4.

[0040] In order to allow steam to be discharged outward through the first steam outlet 6 as much as possible, the amount of steam flowing into the cavity 4 through the first flow path 5 is reduced, and the water outlet effect of the water outlet is improved. Another improvement of the water outlet structure provided by this embodiment is:

[0041] The first flow path 5 extends obliquely downward to the end of the cavity 4 and extends longitudinally to form an air blocking cavity 51. A flow restriction port 512 is provided at the top of the sidewall of the air blocking cavity 51, which communicates with the cavity 4. The air blocking cavity 51 is filled with hot water to liquid-seal the first flow path 5 and force the steam in the first flow path 5 to be discharged through the first steam exhaust port 6. During operation, hot water output from the hot water pipe 3 flows along the first flow path 5 and enters the air blocking cavity 51 at the end of the first flow path 5 away from the hot water pipe 3. It then enters the cavity 4 through the flow restriction port 512 provided on the sidewall of the air blocking cavity 51. During this period, since the flow limiting port 512 is set at the top of the side wall of the air blocking cavity 51, the hot water will not flow out immediately after entering the air blocking cavity 51, but will gather and fill the air blocking cavity 51 and then flow into the cavity 4 through the flow limiting port 512 at the top of the side wall of the air blocking cavity 51. In this way, the hot water can dynamically fill the air blocking cavity 51 and liquid-seal the air blocking cavity 51, thereby preventing steam from directly entering the air blocking cavity 51 through the first flow path 5, forcing the steam output by the subsequent hot water pipe 3 to be discharged only through the first steam exhaust port 6 in the first flow path 5, thereby improving the steam discharge efficiency, reducing the amount of steam flowing into the cavity 4, and helping to improve the water outlet effect of the water outlet.

[0042] Considering that the air blocking cavity 51 needs to be filled with hot water to liquid-seal the steam, during the period when the air blocking cavity 51 is filled with water, the steam discharged from the hot water pipe 3 in the early stage can still flow into the cavity 4 through the unfilled space at the top of the air blocking cavity 51, affecting the water type.

[0043] In this regard, in this embodiment, a water-impacting body 511 is further provided within the air-blocking cavity 51. The water-impacting body 511 is aligned with the flow restriction port 512. Its function is that when hot water enters the air-blocking cavity 51, the water-impacting body 511 allows the hot water to impact and thereby displace the hot water, forming a water wall around the hot water. This formed water wall not only helps accelerate the filling process of the air-blocking cavity 51, but more importantly, it effectively prevents steam from entering the cavity 4 through the flow restriction port 512. During operation, hot water output from the hot water pipe 3 first enters the first flow path 5 and flows toward the air-blocking cavity 51. When the hot water impacts the water-impacting body 511, a water wall quickly forms around it. As hot water is continuously input, the air-blocking cavity 51 gradually fills, and the water wall becomes thicker and more stable. At this point, the steam is effectively blocked within the first flow path 5 and discharged through the first steam exhaust port 6. When the air-blocking cavity 51 is full, the hot water slowly flows into the cavity 4 through the flow restriction port 512, forming a stable water outflow.

[0044] The shape, size and position of the water-strike body 511 can be adjusted according to actual needs to achieve the best water-strike effect. For example, the water-strike body 511 can be designed to be conical or cylindrical to increase its surface area and impact force, making the water wall more stable and effective.

[0045] In addition, considering that part of the steam will dissolve in the hot water in the form of bubbles during the hot water output process of the hot water pipe 3, this will lead to a problem: that is, when the hot water is output, the hot water and steam mixture will pass through the first flow path 5. Although the steam that is separated from the hot water can be separated and discharged as much as possible through the above-mentioned "dynamic liquid sealing scheme of the air blocking cavity 51 combined with the first steam exhaust port 6", so that the hot water enters the cavity 4 alone, the hot water entering the cavity 4 will be affected by factors such as changes in the flow path space, pressure changes, and water flow impact, so that the steam originally dissolved in the hot water in the form of microbubbles will be released for a second time and separated from the hot water, causing steam to be generated in the cavity 4 or even filled with steam, thereby affecting the water output.

[0046] In this regard, in this embodiment, a plurality of water retaining columns 52 are longitudinally extended from the bottom of the inner wall of the first flow path 5, and the top of the water retaining column 52 is spaced apart from the top of the inner wall of the first flow path 5. The first steam exhaust port 6 is formed at the top of the water retaining column 52 and penetrates the shell 1 longitudinally.

[0047] During operation, the water retaining column 52 can break up the hot water flow when the hot water flows through the first flow path 5, so that the hot water forms more small water droplets or water films during the flow, increasing the contact area between the hot water and the air, and helping the hot water to quickly release and separate its own dissolved micro-bubble steam in advance, avoiding the situation of "hot water releasing steam in the cavity 4, causing the steam and water to be sprayed out of the water outlet together", thereby optimizing the water outlet effect and increasing the water outlet speed. The design of "the top of the water retaining column 52 is spaced apart from the top of the inner wall of the first flow path 5, and the first steam exhaust port 6 is formed at the top of the water retaining column 52 and longitudinally penetrates the shell 1" can provide a path for the discharge of steam. When steam is generated in hot water and rises to the top of the water retaining column 52, they can converge through the path formed by these spaced apart positions, and finally be discharged through the first steam exhaust port 6 longitudinally penetrating the shell 1. This design ensures that the steam can smoothly leave the first flow path 5, avoids the accumulation and backflow of steam in the path, and can realize downward steam exhaust at the same time, preventing water vapor from being discharged upward and contacting electronic devices such as the display screen preset above the shell 1 in the drinking water equipment, thereby protecting the circuit.

[0048] Considering that when existing drinking water equipment uses warm water, its cold water pipe 2 and hot water pipe 3 usually work at the same time to discharge water, allowing the cold water and hot water to mix in the cavity 4 to form warm water and then be discharged through the water outlet. In this embodiment, due to the existence of the first flow path 5, the "time for hot water to enter the cavity 4 from the hot water pipe 3" is extended and is greater than the "time for cold water to enter the cavity 4 from the cold water pipe 2". Therefore, the following problems and risks may exist in actual applications: that is, when the user uses warm water, because the "time for hot water to enter the cavity 4 from the hot water pipe 3" is extended and is greater than the "time for cold water to enter the cavity 4 from the cold water pipe 2", a large amount of cold water will enter the cavity 4 before the hot water and be discharged through the water outlet, causing the user to relax his vigilance and think that the discharged water is at a lower temperature. However, when the hot water enters the cavity 4, the subsequent outlet water temperature will rise sharply, which can easily cause the user to be scalded.

[0049] In this embodiment, a second flow path 8 is further formed on the housing 1. One end of the second flow path 8 is connected to the cold water pipe 2, and the other end extends parallel to the first flow path 5 and is connected to the cavity 4. The presence of the second flow path 8 can balance the time when hot water and cold water enter the cavity 4, so that the hot water and cold water can enter the cavity 4 as synchronously as possible and in a preset ratio. After the hot water is formed in the cavity 4, it is discharged for use, thereby improving water collection safety.

[0050] For the sake of production convenience and cost-effectiveness, in this embodiment, the shell 1 adopts a split design, that is, the shell 1 includes a bottom shell 11 and a plurality of covers 12. One end of the bottom shell 11 is recessed inward to form a plurality of grooves. The covers 12 are connected to the bottom shell 11 and seal the grooves to form the above-mentioned cavity 4, the first flow path 5, and the second flow path 8. Since the shell 1 has multiple independent chambers and flow paths, the combination of the bottom shell 11 and the cover 12 can greatly simplify the production process and reduce the difficulty of production. During the production process, the bottom shell 11 can first be uniformly processed and treated, and the desired groove structure can be formed in one piece or in steps through processes such as stamping, cutting, and injection molding. Then, different covers 12 can be respectively covered on the corresponding grooves as needed to form a complete water outlet structure.

[0051] In addition, to ensure stable water outflow and prevent water outflow from being too rapid or interrupted, in this embodiment, the water outlet includes a first water outlet 41 and at least one set of second water outlets 42. The first water outlet 41 extends to the outside of the cavity 4 to form a water outlet pipe 47. The second water outlet 42 is adjacent to the first water outlet 41 and connected to the outer wall of the water outlet pipe 47. A flow limiting structure is provided in the cavity 4 to limit the flow of water into the second water outlet 42. Through the above technical solution, during operation, when hot water is needed, the hot water pipe 3 is pumped into the cavity 4 at a smaller flux under the action of the external water pump. Under the blocking of the flow limiting structure, the water flow in the cavity 4 can only flow out through the water outlet pipe 47 extending from the first water outlet 41 alone, realizing single-pipe water outlet; when warm water or cold water is needed, the cold water pipe 2 and the hot water pipe 3 are pumped into the cavity 4 at a larger flow rate at the same time under the action of the external water pump. At this time, the water inlet of the cavity 4 is greater than the water outlet of the first water outlet 41. Due to the limited volume of the cavity 4, under the large-flux water supply, the water level in the cavity 4 will rise rapidly and exceed the flow limiting structure, so that part of the water flow can cross the flow limiting structure and enter the second water outlet 42. Since the second water outlet 42 is connected to the outer wall of the outlet pipe 47, the water flow out of the second water outlet 42 will eventually flow to the outer wall of the outlet pipe 47, and finally merge with the water flow out of the outlet pipe 47 into one stream for water outlet.

[0052] In this embodiment, due to the adoption of the above-mentioned "limited flow guidance + segmented steam exhaust" design and the liquid seal drainage design of the air blocking cavity 51, the amount of steam that can enter the cavity 4 in actual applications is already negligible, so the second steam exhaust port 7 in this embodiment may not be additionally provided, that is, the second water outlet 42 in the cavity 4 may be equivalent to the above-mentioned second steam exhaust port 7, playing the role of terminal bottom exhaust.

[0053] The composition and connection method of the flow limiting structure are diverse. This embodiment provides a specific structure of the flow limiting structure: the flow limiting structure includes a flow limiting plate 43 arranged at the bottom of the cavity 4, and the flow limiting plate 43 separates the cavity 4 into a first chamber 44 and a second chamber 45; the first water outlet 41 is arranged at the bottom of the first chamber 44, and the second water outlet 42 is arranged at the bottom of the second chamber 45. The cold water pipe 2 and the hot water pipe 3 are connected to the first chamber 44, and the top of the flow limiting plate 43 is at least partially aligned with the top of the inner wall of the cavity 4. When hot water or other low-flux water outlets are used, the limiting plate 43 blocks the water flow from entering the second chamber 45, restricting the water flow from entering the first water outlet 41 and uniformly discharging the water outward through the outlet pipe 47; when warm water, cold water or other high-flux water outlets are used, the water flow first enters the first chamber 44 and flows out through the first water outlet 41 under the obstruction of the limiting plate 43. Since the drainage efficiency of the first water outlet 41 is lower than the water inlet efficiency of the hot water pipe 3 and the cold water pipe 2 into the cavity 4, the water level in the first chamber 44 will rise rapidly in a short period of time, and the water flow will partially overflow the limiting plate 43 and enter the second chamber 45 through the gap formed by the top of the limiting plate 43 and the top of the inner wall of the cavity 4. This part of the water flow is finally discharged from the cavity 4 through the second water outlet 42 in the second chamber 45.

[0054] Furthermore, a collecting hole 13 is provided on the bottom shell 11 of the shell 1, and the collecting hole 13 is connected to the second water outlet 42 and is closed around the outer wall of the outlet pipe 47. The inner wall of the collecting hole 13 extends toward the outer wall of the outlet pipe 47 to form a plurality of guide teeth 131, and a guide slope 132 is provided between adjacent guide teeth 131. The collecting slope extends obliquely downward from the inner wall of the collecting hole 13 to the outer wall of the outlet pipe 47.

[0055] Through the above technical solution, the water flowing out of the second water outlet 42 can be collected and redistributed through the collecting hole 13, and merged with the water flowing out of the first water outlet 41 in the form of an encirclement, so that the water outflow is more aggregated, which is conducive to speeding up the water outflow speed; in addition, by setting the guide teeth 131, the guide teeth 131 can play the role of a water flow guide, combing the water flow of the collecting hole 13 of the second water outlet 42, guiding the water flow to flow in a specific direction, reducing the turbulence and eddy current of the water flow, and making the water flow closer to the outer wall of the outlet pipe 47, thereby increasing the stability of the water flow. The water flow combed by the guide teeth 131 can be guided by the guide slope 132, flowing from the inner wall of the collecting hole 13 to the outer wall of the outlet pipe 47, forming a uniform water film along the outer wall of the outlet pipe 47, further improving the uniformity and stability of the water outlet.

[0056] Furthermore, to ensure that the cold and hot water are fully mixed in the cavity 4 to form warm water before being uniformly discharged through the water outlet when the drinking water device is using warm water, thereby improving the temperature uniformity and flow stability of the outlet water flow, a buffer water channel 46 is formed in the cavity 4 in this embodiment. The head end of the buffer water channel 46 connects to the second flow channel 8 and the first flow channel 5, and the tail end extends to the water outlet. The head end of the buffer water channel 46 is provided with a buffer surface 461 aligned with the output end of the second flow channel 8. At least one turning portion 462 is provided between the head end and the tail end of the buffer water channel 46.

[0057] Through the above-described technical solution, since the head end of the buffer waterway 46 is connected to both the second flow path 8 and the output end of the first flow path 5, the cold water and hot water begin to mix upon entering the buffer waterway 46. By providing a buffer surface 461, the buffer surface 461 can collide with the cold water after entering the cavity 4, slowing the speed of the cold water entering the buffer waterway 46 and providing the hot water with a certain buffer time, thereby ensuring a more complete and uniform mixing process between the two. Furthermore, the buffer waterway 46 is provided with at least one turning portion 462 between the head end and the tail end. This design further promotes the mixing of the cold and hot water. When the water flows through the turning portion 462, it generates certain eddies and turbulence, which not only helps to break the laminar flow state of the water flow, allowing the cold and hot water to mix more thoroughly in a smaller space, improving the uniformity of the mixing of the cold and hot water and avoiding local overheating or overcooling, but also reduces the linear impact velocity of the water flow, thereby reducing fluctuations during water discharge and stabilizing the pressure, making the outlet water flow more stable and improving the user's drinking experience.

[0058] Specifically, in this embodiment, the buffer water channel 46 is formed in the first chamber 44 of the cavity 4, and is jointly formed by the outer wall of the flow limiting plate 43, the outer wall of the air blocking cavity 51 and the inner wall of the first chamber 44. The buffer surface 461 is formed on the outer wall of one end of the flow limiting plate 43 close to the output end of the second flow path 8, and the turning portion 462 is formed by local bending of the flow limiting plate 43.

[0059] Note that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are readily apparent to those skilled in the art without departing from the scope of protection of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the appended claims.

Claims

1. A water outlet structure, characterized in that: include: A cavity (4) for liquid circulation and a water outlet and a first steam exhaust port (6) are provided at the bottom of the cavity (4); A cold water pipe (2) is connected to the cavity (4) and is used to transport cold water; A first flow path (5) is connected at one end to a hot water pipe (3) for inputting hot water and steam, and the other end extends to the cavity (4); the flow path cross-sectional area of ​​the first flow path (5) is smaller than the flow path cross-sectional area of ​​the cavity (4), and a second steam exhaust port (7) is provided in the first flow path (5).

2. The water outlet structure according to claim 1, characterized in that: The first flow path (5) extends obliquely downward to the end of the cavity (4), and the end of the first flow path (5) extends longitudinally to form an air blocking cavity (51), and a flow limiting port (512) communicating with the cavity (4) is provided at the top of the side wall of the air blocking cavity (51), and the air blocking cavity (51) is used to be filled with hot water to liquid-seal the first flow path (5) and force the steam in the first flow path (5) to be discharged from the first steam exhaust port (6).

3. The water outlet structure according to claim 2, characterized in that: A water impact body (511) is provided in the air blocking cavity (51), and the water impact body (511) is aligned with the flow limiting opening (512) and is used for hot water impact to form a water wall, thereby preventing steam from passing through the flow limiting opening (512).

4. The water outlet structure according to claim 1, wherein: The bottom of the inner wall of the first flow path (5) is longitudinally extended to form a plurality of water retaining columns (52) for blowing away the hot water for water vapor separation; the top of the water retaining column (52) is spaced apart from the top of the inner wall of the first flow path (5), and the first steam exhaust port (6) is formed at the top of the water retaining column (52) and longitudinally penetrates the first flow path (5).

5. The water outlet structure according to claim 1, characterized in that: The water outlet structure comprises a bottom shell (11) and a plurality of covers (12); the bottom shell (11) is inwardly recessed to form a plurality of grooves; the covers (12) seal the grooves to form the cavity (4) and the first flow path (5).

6. The water outlet structure according to claim 1, characterized in that: It also includes a second flow path (8), one end of which is connected to the cold water pipe (2), and the other end of which extends parallel to the first flow path (5) and is connected to the cavity (4).

7. The water outlet structure according to any one of claims 1 to 6, characterized in that: The water outlet comprises a first water outlet (41) and at least one group of second water outlets (42), wherein the first water outlet (41) extends to the outside of the cavity (4) to form a water outlet pipe (47), and the second water outlet (42) is adjacent to the first water outlet (41) and communicates with the outer wall of the water outlet pipe (47), and a flow limiting structure for limiting water flow into the second water outlet (42) is provided in the cavity (4).

8. The water outlet structure according to claim 7, characterized in that: The flow limiting structure comprises a flow limiting plate (43) arranged at the bottom of the cavity (4), and the flow limiting plate (43) separates the bottom of the cavity (4) into a first chamber (44) and a second chamber (45); the first water outlet (41) is arranged at the bottom of the first chamber (44), and the second water outlet (42) is arranged at the bottom of the second chamber (45); the cold water pipe (2) and the hot water pipe (3) are connected to the first chamber (44).

9. The water outlet structure according to claim 7, characterized in that: The inner wall of the second water outlet (42) extends toward the outer wall of the water outlet pipe (47) to form a plurality of guide teeth (131).

10. The water outlet structure according to claim 8, characterized in that: The bottom of the first chamber (44) slopes downward from the input end of the water inlet pipe toward the first water outlet (41), and the bottom of the second chamber (45) slopes downward from the flow limiting plate (43) toward the second water outlet (42).

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