A water outlet structure and drinking water equipment

Abstract

The present invention relates to the technical field of drinking water equipment, and discloses a water outlet structure, including: a shell, which is formed with a liquid outlet cavity, and a water outlet is provided at the bottom of the liquid outlet cavity; a cold water pipe, which is connected to the liquid outlet cavity and used to transport cold water; a hot water pipe, which is used to transport hot water and steam; a heat path for limiting and guiding high-temperature steam and hot water is formed on the shell; one end of the heat path is connected to the hot water pipe, and the other end thereof extends obliquely downward and is connected to the liquid outlet cavity; a first steam exhaust port is provided in the heat path, and a second steam exhaust port is provided in the liquid outlet cavity. The present invention adopts the design of "limited flow guidance + segmented steam exhaust", so that steam can be discharged outwardly through the first steam exhaust port in the heat path in a relatively concentrated and efficient manner, thereby enhancing the steam exhaust effect, minimizing the amount of steam that subsequently flows into the liquid outlet cavity, reducing the occurrence of steam spraying when discharging water, reducing the interference of steam on the water shape of the water outlet, and improving the water outlet stability.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to a water spout structure and drinking water equipment. 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 become widely welcomed by consumers and have become the leading product in the market.

[0003] When an instant hot water dispenser is heated, it uses a heating body to heat quickly, which will cause the water to boil extremely quickly and produce 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 provided 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 of 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 the existing instant hot water dispensers usually adopt a dual-pipeline water outlet design, 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 the heated 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 the user experience and posing a safety hazard. Summary of the invention

[0005] The present invention aims to provide a water spout structure and drinking water equipment to solve the above technical problems.

[0006] In order to achieve the above objectives, the following technical solutions are provided:

[0007] In the first aspect, the present invention provides a water outlet structure, comprising: a shell, which is provided with a liquid outlet cavity, and the bottom of the liquid outlet cavity is provided with a water outlet for liquid to flow out; a cold water pipe, which is connected to the liquid outlet cavity and is used to transport cold water; a hot water pipe, which is used to transport hot water and steam; a thermal path for limiting and guiding high-temperature steam and hot water is provided on the shell; the flow path cross-sectional area of ​​the thermal path is smaller than the flow path cross-sectional area of ​​the liquid outlet cavity, one end of the thermal path is connected to the hot water pipe, and the other end thereof extends obliquely downward and is connected to the liquid outlet cavity; a first steam exhaust port for centralized pre-discharge of steam is provided in the thermal path, and the liquid outlet cavity is provided with a second steam exhaust port for terminal discharge of steam.

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

[0009] As an optional solution for the water outlet structure provided by the present invention, a water impact body is provided in the air blocking cavity, and the water impact body is aligned with the flow limiting port to provide 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 heat passage 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 heat passage, and the first steam exhaust port is formed at the top of the water retaining column and longitudinally penetrates the shell.

[0011] As an optional solution for the water outlet structure provided by the present invention, the shell includes a bottom shell and a plurality of cover bodies, one end of the bottom shell is recessed inward to form a plurality of groove bodies, and the cover body seals and covers the groove bodies to form the liquid outlet cavity and the heat path.

[0012] As an optional solution of the water outlet structure provided by the present invention, a cold passage is formed on the shell, one end of the cold passage is connected to the cold water pipe, and the other end thereof extends parallel to the hot passage and is connected to the liquid outlet cavity.

[0013] As an optional solution for the water outlet structure provided by the present invention, a buffer water channel is formed in the liquid outlet cavity, the head end of the buffer water channel is connected to the cold passage and the hot passage, and the tail end thereof extends to be connected to the water outlet, the head end of the buffer water channel is provided with a buffer surface aligned with the output end of the cold passage, and there is at least one turning portion between the head end and the tail end of the buffer water channel.

[0014] As an optional solution of the water outlet structure provided by the present invention, the water outlet includes a first water outlet and at least one group of second water outlets, the first water outlet extends 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 the liquid outlet cavity is provided with a flow limiting structure for limiting the flow of water into the second water outlet.

[0015] As an optional solution of the water outlet structure provided by the present invention, the flow limiting structure includes a flow limiting plate arranged at the bottom of the liquid outlet cavity, and the flow limiting plate divides the liquid outlet cavity to form 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, the cold water pipe and the hot water pipe are connected to the first chamber, and the top of the flow limiting plate is at least partially spaced apart from the top of the inner wall of the liquid outlet cavity.

[0016] As an optional solution for the water outlet structure provided by the present invention, a collecting hole is provided on the shell, the collecting hole is connected to the second water outlet and surrounds the outer wall of the water outlet pipe in a closed loop, the inner wall of the collecting hole extends toward the outer wall of the water outlet pipe to form a plurality of guide teeth, and a guide slope is provided between adjacent guide teeth, and the collecting slope extends obliquely downward from the inner wall of the collecting hole to the outer wall of the water outlet pipe.

[0017] In a second aspect, the present invention further provides a drinking water device, comprising the water outlet structure as described above.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. On the basis of the liquid outlet cavity, a heat path with a smaller flow path cross-sectional area is set, and a "limited flow guidance + segmented steam exhaust" design is adopted. The heat path limits the gathering and flow guidance of the steam carried by the hot water, maintains the steam pressure and limits the irregular and disordered escape of the steam, so that the steam can be discharged outward through the first steam exhaust port in the heat path in a relatively concentrated and efficient manner, thereby enhancing the steam exhaust effect, minimizing the amount of steam that subsequently flows into the liquid outlet cavity, reducing the occurrence of steam spraying during water discharge, reducing the interference of steam on the water shape of the water outlet, and improving the water discharge stability;

[0019] 2. An air blocking cavity is set at the end of the heat path, and the air blocking cavity is filled with hot water to liquid-seal the heat path, forcing the steam in the heat path to be discharged from the first steam exhaust port, thereby improving the steam discharge efficiency, reducing the amount of steam flowing into the liquid outlet cavity, and improving the water outlet effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces 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.

[0021] Figure 1 is an exploded view of the water outlet structure provided in this embodiment;

[0022] Figure 2 This is a schematic diagram of the structure of the water outlet structure provided in this embodiment without being connected to the cover body;

[0023] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0024] Figure 4 It is a cross-sectional view of the water outlet structure provided in this embodiment.

[0025] In the figure:

[0026] 11. Bottom shell; 12. Cover body; 13. Collecting hole; 131. Guide tooth; 132. Guide slope; 2. Cold water pipe; 3. Hot water pipe; 4. Liquid outlet cavity; 41. First water outlet; 42. Second water outlet; 43. Limiting plate; 44. First chamber; 45. Second chamber; 46. Buffer waterway; 461. Buffer surface; 462. Turning part; 47. Water outlet pipe; 5. Heat passage; 51. Air blocking cavity; 511. Water striking body; 512. Limiting port; 52. Water retaining column; 6. First steam exhaust port; 7. Second steam exhaust port; 8. Cold passage. DETAILED DESCRIPTION

[0027] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Embodiment 1:

[0031] refer to Figure 1~Figure 4 A water outlet structure, which is the same as the water outlet of the existing instant hot water dispenser, includes: a shell, a cold water pipe 2 and a hot water pipe 3 are connected to the shell, a liquid outlet cavity 4 for liquid circulation is formed inside the shell, the liquid outlet cavity 4 is connected to the cold water pipe 2 and the hot water pipe 3, a water outlet is arranged at the bottom of the liquid outlet cavity 4, the shell has a steam outlet connected to the liquid outlet cavity 4, the water outlet is used for liquid to flow out, and the steam outlet is used for discharging high-temperature steam to the outside.

[0032] When receiving water, if boiling water is needed, the hot water pipe 3 independently transports hot water and high-temperature steam to the liquid outlet chamber 4, the hot water flows through the liquid outlet chamber 4 and is discharged through the water outlet for users to drink, and the high-temperature steam is separated from the hot water and discharged to the outside through the exhaust port; if cold water is needed, the cold water pipe 2 independently transports cold water to the liquid outlet chamber 4, the cold water flows through the liquid outlet chamber 4 and is directly discharged to the outside through the water outlet; if warm water is needed, the cold water pipe 2 and the hot water pipe 3 together transport cold water, hot water and high-temperature steam to the liquid outlet pipe respectively, the cold water and hot water flow through the liquid outlet chamber 4 in a certain proportion and mix to form warm water of a specified temperature, and the warm water is discharged through the water outlet. Similarly, the high-temperature steam is separated from the warm water and discharged to the outside through the exhaust port.

[0033] Considering that there are a series of problems in the application process 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 at the outlet, the improvement of this application is:

[0034] A heat passage 5 for pre-separation of hot water and steam is also formed on the shell. One end of the heat passage 5 is connected to and communicates with the hot water pipe 3, and the other end of the heat passage 5 extends obliquely downward from the hot water pipe 3 to communicate with the liquid outlet chamber 4. The flow cross-sectional area of ​​the heat passage 5 is smaller than the flow cross-sectional area of ​​the liquid outlet chamber 4. Here, the flow 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 exhaust port 6 arranged in the heat passage 5 and a second exhaust port 7 arranged in the liquid outlet chamber 4.

[0035] The present application adopts the design of "limited flow diversion + segmented steam exhaust". When the user takes hot water or warm water, the hot water flows through the heat path 5 and the liquid outlet cavity 4 in sequence, and then is discharged outward through the water outlet. During this period, since the cross-sectional area of ​​the heat path 5 is smaller than the liquid outlet 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 the steam pressure and limiting the irregular and disordered escape of steam, so that the steam can be discharged outward through the first steam exhaust port 6 in the heat path 5 in a relatively concentrated and efficient manner, enhancing the steam exhaust effect, and minimizing the amount of steam that subsequently flows into the liquid outlet cavity 4, thereby reducing the occurrence of steam spraying when the water outlet is discharged, reducing the interference of steam on the water shape of the water outlet, avoiding the problems of local swing, drift and splashing of the water flow, and improving the stability of water outlet. In particular, when the water outlet structure in this embodiment is applied to an instant hot water dispenser, it can effectively improve the steam exhaust problem of a high-power instant hot water dispenser under high air pressure and high flow rate.

[0036] In addition, by arranging a second steam exhaust port 7 in the liquid outlet chamber 4, the remaining steam entering the liquid outlet chamber 4 can be discharged at the bottom, further reducing the disturbance of the steam to the water flow; the advantage of the above-mentioned "heat path 5 extending obliquely downward and connecting to the liquid outlet chamber 4" is that when the mixture formed by hot water and steam enters the downward-inclined heat path 5, due to the effect of gravity, the hot water tends to flow along the bottom of the heat path 5, while the steam tends to rise due to its lower density. This natural separation phenomenon will be enhanced in the heat 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 liquid outlet chamber 4.

[0037] 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 liquid outlet chamber 4 through the heat path 5 is reduced, and the water outlet effect of the water outlet is improved. Another improvement of the water outlet structure provided in this embodiment is:

[0038] The heat path 5 extends obliquely downward to the end of the liquid outlet chamber 4 and extends longitudinally to form an air blocking chamber 51. The top of the side wall of the air blocking chamber 51 is provided with a flow restriction port 512 connected to the liquid outlet chamber 4. The air blocking chamber 51 is used to be filled with hot water to seal the heat path 5 and force the steam in the heat path 5 to be discharged from the first steam exhaust port 6. During operation, the hot water output from the hot water pipe 3 will flow along the heat path 5, and enter the air blocking chamber 51 at the end of the heat path 5 away from the hot water pipe 3, and enter the liquid outlet chamber 4 through the flow restriction port 512 provided on the side wall of the air blocking chamber 51. During this period, since the flow limiting port 512 is set at the top of the side wall of the air blocking chamber 51, the hot water will not flow out immediately after entering the air blocking chamber 51, but will gather and fill the air blocking chamber 51 and then flow into the liquid outlet chamber 4 through the flow limiting port 512 at the top of the side wall of the air blocking chamber 51. In this way, the hot water can dynamically fill the air blocking chamber 51 and liquid-seal the air blocking chamber 51, thereby preventing steam from directly entering the air blocking chamber 51 through the heat passage 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 heat passage 5, thereby improving the steam discharge efficiency, reducing the amount of steam flowing into the liquid outlet chamber 4, and helping to improve the water outlet effect of the water outlet.

[0039] Considering that the air blocking chamber 51 needs to be filled with hot water to liquid-seal the steam, during the period when the air blocking chamber 51 is filled with water, the steam discharged from the hot water pipe 3 in the early stage can still flow into the liquid outlet chamber 4 through the unfilled space at the top of the air blocking chamber 51, affecting the outlet water type.

[0040] In this regard, in the present embodiment, a water impact body 511 is further provided in the air blocking cavity 51, and the water impact body 511 is aligned with the flow limiting port 512, and its function is that when hot water enters the air blocking cavity 51, the water impact body 511 can be used for hot water to impact and then impact the hot water, so that the hot water forms a water wall around it, and the formed water wall not only helps to accelerate the water filling process of the air blocking cavity 51, but more importantly, it can effectively prevent steam from entering the liquid outlet cavity 4 through the flow limiting port 512. During operation, the hot water output by the hot water pipe 3 first enters the heat passage 5 and flows to the air blocking cavity 51. When the hot water impacts the water impact body 511, a water wall will be quickly formed around it. With the continuous input of hot water, the air blocking cavity 51 is gradually filled, and the water wall becomes thicker and more stable. At this time, the steam is effectively blocked in the heat passage 5 and discharged through the first exhaust port 6. When the air blocking cavity 51 is full, the hot water slowly flows into the liquid outlet cavity 4 through the flow limiting port 512, forming a stable water outlet flow.

[0041] The design of the water striking body 511 can adjust its shape, size and position according to actual needs to achieve the best water striking effect. For example, the water striking 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.

[0042] In addition, considering that during the process of hot water output from the hot water pipe 3, part of the steam will dissolve in the hot water in the form of bubbles, this will lead to a problem: that is, when hot water is output, when the hot water and steam mixture passes through the heat 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 chamber 51 combined with the first steam exhaust port 6", so that the hot water enters the liquid outlet chamber 4 alone, but the hot water entering the liquid outlet chamber 4, due to the changes in the flow path space, pressure changes, water flow impact and other factors, 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, so that the liquid outlet chamber 4 is generated or even filled with steam, thereby affecting the water output.

[0043] 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 heat passage 5, and the top of the water retaining column 52 is spaced apart from the top of the inner wall of the heat passage 5. The first steam exhaust port 6 is formed at the top of the water retaining column 52 and penetrates the shell longitudinally.

[0044] When working, the water retaining column 52 can break up the hot water flow when the hot water flows through the heat passage 5, so that the hot water forms more fine 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 the microbubble steam dissolved in itself in advance, avoiding the situation of "hot water releasing steam in the liquid outlet chamber 4, so that the steam and water are 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 heat passage 5, and the first steam exhaust port 6 is formed at the top of the water retaining column 52 and penetrates the shell longitudinally" can provide a passage 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 passage formed by these spaced apart positions, and finally be discharged through the first steam exhaust port 6 which penetrates the shell longitudinally. This design ensures that the steam can smoothly leave the heat passage 5, avoiding the accumulation and backflow of steam in the passage, and at the same time can realize downward steam exhaust, preventing water vapor from being discharged upward and contacting electronic equipment such as the display screen preset above the shell in the drinking water equipment, thereby protecting the circuit.

[0045] Considering that when the 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, so that the cold water and hot water are mixed in the liquid outlet chamber 4 to form warm water and then discharged through the water outlet. In the present embodiment, due to the existence of the heat path 5, the "time for hot water to enter the liquid outlet chamber 4 from the hot water pipe 3" is extended and is greater than the "time for cold water to enter the liquid outlet chamber 4 from the cold water pipe 2". Therefore, there may be the following problems and risks in actual application: that is, when the user uses warm water, because the "time for hot water to enter the liquid outlet chamber 4 from the hot water pipe 3" is extended and is greater than the "time for cold water to enter the liquid outlet chamber 4 from the cold water pipe 2", a large amount of cold water will enter the liquid outlet chamber 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 warm water with a lower temperature. However, when the hot water enters the liquid outlet chamber 4, the subsequent outlet water temperature will rise sharply, which can easily cause the user to be scalded.

[0046] In this regard, in this embodiment, a cold passage 8 is further formed on the shell, one end of the cold passage 8 is connected to the cold water pipe 2, and the other end thereof extends parallel to the hot passage 5 and is connected to the liquid outlet chamber 4. Due to the existence of the cold passage 8, the time for hot water and cold water to enter the liquid outlet chamber 4 can be balanced, so that hot water and cold water can enter the liquid outlet chamber 4 as synchronously as possible and in accordance with a preset ratio, and warm water is formed in the liquid outlet chamber 4 before being discharged for use, thereby improving the safety of water intake.

[0047] Considering the convenience of production and cost-effectiveness, in this embodiment, the shell adopts a split design, that is, the shell 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 liquid outlet cavity 4, heat passage 5 and cold passage 8. Since the shell has multiple independent chambers and flow paths, the production process can be greatly simplified and the production difficulty can be reduced by combining the bottom shell 11 with the cover 12. During the production process, the bottom shell 11 can be uniformly processed and treated first, and the required groove structure can be formed in one piece or in steps through stamping, cutting, injection molding and other processes. Then, different covers 12 are respectively covered on the corresponding grooves as needed to form a complete water outlet structure.

[0048] In addition, in order to ensure stable water outlet and prevent the water from being too rapid or interrupted, in this embodiment, the water outlet includes a first water outlet 41 and at least one group of second water outlets 42, and the first water outlet 41 extends to the outside of the liquid outlet 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, and a flow limiting structure is provided in the liquid outlet cavity 4 to limit the water flow into the second water outlet 42. Through the above technical scheme, during operation, when hot water is needed, the hot water pipe 3 conveys water to the liquid outlet chamber 4 at a relatively small flux under the action of an external water pump. Under the blocking of the flow limiting structure, the water flow in the liquid outlet chamber 4 can only flow out through the water outlet pipe 47 extending from the first water outlet 41 alone, thereby realizing single-pipe water outlet; when warm water or cold water is needed, the cold water pipe 2 and the hot water pipe 3 convey water to the liquid outlet chamber 4 at a relatively large flow rate at the same time under the action of an external water pump. At this time, the water inlet of the liquid outlet chamber 4 is greater than the water outlet of the first water outlet 41. Due to the limited volume of the liquid outlet chamber 4, under the large-flux water conveyance, the water level in the liquid outlet chamber 4 will rise rapidly and exceed the flow limiting structure, thereby allowing part of the water flow to pass through 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 water outlet pipe 47, the water flow out of the second water outlet 42 will eventually flow to the outer wall of the water outlet pipe 47, and finally merge with the water flow out of the water outlet pipe 47 into one stream for water outlet.

[0049] In the present 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 chamber 51, the amount of steam that can enter the liquid outlet chamber 4 in actual applications is already negligible, so the second steam exhaust port 7 in the present embodiment may not be additionally provided, that is, the second water outlet 42 in the liquid outlet chamber 4 may be equivalent to the above-mentioned second steam exhaust port 7, thereby playing the role of terminal bottom exhaust.

[0050] The composition and connection method of the flow limiting structure are diverse. This embodiment provides a specific structure of a flow limiting structure: the flow limiting structure includes a flow limiting plate 43 arranged at the bottom of the liquid outlet chamber 4, and the flow limiting plate 43 separates the liquid outlet chamber 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 liquid outlet chamber 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, restricts the water flow from entering the first water outlet 41 and uniformly discharges the water 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 to the liquid outlet chamber 4, the water level in the first chamber 44 will rise rapidly in a short 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 liquid outlet chamber 4. This part of the water flow is finally discharged from the liquid outlet chamber 4 through the second water outlet 42 in the second chamber 45.

[0051] Furthermore, a collecting hole 13 is provided on the bottom shell 11 of the shell body. 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. 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.

[0052] Through the above technical scheme, the water flow out of the second water outlet 42 can be collected and redistributed through the collecting hole 13, and merged with the water flow out of the first water outlet 41 in the form of an enclosure, so that the water flow is more aggregated, which is conducive to accelerating the water flow 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 water 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 water outlet pipe 47, forming a uniform water film along the outer wall of the water outlet pipe 47, further improving the uniformity and stability of the water flow.

[0053] In addition, when the drinking water device uses warm water, cold water and hot water can be more fully mixed into warm water in the liquid outlet chamber 4, and then uniformly discharged outward through the water outlet, thereby improving the temperature uniformity and water flow stability of the outlet water flow. In this embodiment, a buffer waterway 46 is formed in the liquid outlet chamber 4, the head end of the buffer waterway 46 is connected to the cold passage 8 and the hot passage 5, and the end thereof extends to the water outlet, the head end of the buffer waterway 46 is provided with a buffer surface 461 aligned with the output end of the cold passage 8, and there is at least one turning portion 462 between the head end and the end of the buffer waterway 46.

[0054] Through the above technical solution, since the head end of the buffer waterway 46 is connected to the output ends of the cold passage 8 and the hot passage 5 at the same time, the cold water and the hot water begin to mix when entering the buffer waterway 46. By setting the buffer surface 461, the buffer surface 461 can collide with the cold water after the cold water enters the liquid outlet chamber 4, slow down the speed of the cold water entering the buffer waterway 46, and give the hot water a certain buffer time, so that the two are more fully and evenly mixed in the process. In addition, the buffer waterway 46 is provided with at least one turning portion 462 between the head end and the end, and this design can further promote the mixing of the cold water and the hot water. When the water flows through the turning portion 462, certain eddies and turbulences will be generated, which not only helps to break the laminar state of the water flow, so that the cold water and the hot water can be mixed more fully in a smaller space, improve the mixing uniformity of the cold water and the hot water, and avoid the phenomenon of local overheating or overcooling, but also can reduce the linear impact speed of the water flow, thereby reducing the fluctuation when the water is discharged, playing a role in stabilizing the pressure, making the water flow of the water outlet more stable, and improving the user's drinking experience.

[0055] Specifically, in the present embodiment, the buffer water path 46 is formed in the first chamber 44 of the liquid outlet chamber 4, and is formed by the outer wall of the flow limiting plate 43, the outer wall of the air blocking chamber 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 cold passage 8, and the turning portion 462 is formed by partial bending of the flow limiting plate 43.

[0056] Embodiment 2

[0057] A drinking water device comprises the water outlet structure provided in the first embodiment.

[0058] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A water outlet structure, characterized in that: include: A shell body, which is formed with a liquid outlet cavity (4), and a water outlet for liquid to flow out is provided at the bottom of the liquid outlet cavity (4); A cold water pipe (2), which is connected to the liquid outlet cavity (4) and is used to transport cold water; A hot water pipe (3) for conveying hot water and steam; The shell is provided with a heat path (5) for limiting and guiding high-temperature steam and hot water; the cross-sectional area of ​​the flow path of the heat path (5) is smaller than the cross-sectional area of ​​the flow path of the liquid outlet chamber (4); one end of the heat path (5) is connected to the hot water pipe (3), and the other end thereof extends to be connected to the liquid outlet chamber (4); a first steam exhaust port (6) for centralized pre-discharge of steam is provided in the heat path (5), and a second steam exhaust port (7) for terminal discharge of steam is provided in the liquid outlet chamber (4); the heat path (5) extends obliquely downward to the end of the liquid outlet chamber (4) and is longitudinally extended to form an air blocking chamber (51); a flow limiting port (512) connected to the liquid outlet chamber (4) is provided at the top of the side wall of the air blocking chamber (51); the air blocking chamber (51) is used to be filled with hot water to liquid-seal the heat path (5) and force the steam in the heat path (5) to be discharged from the first steam exhaust port (6).

2. The water outlet structure according to claim 1, 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 and thereby prevent steam from passing through the flow limiting opening (512).

3. The water outlet structure according to claim 1, characterized in that: The bottom of the inner wall of the heat passage (5) is longitudinally extended to form a plurality of water retaining columns (52) for blowing out 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 heat passage (5); the first steam exhaust port (6) is formed at the top of the water retaining column (52) and longitudinally penetrates the shell.

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

5. The water outlet structure according to claim 1, characterized in that: A cold passage (8) is formed on the shell, one end of the cold passage (8) is connected to the cold water pipe (2), and the other end of the cold passage (8) extends along the hot passage (5) to be connected to the liquid outlet chamber (4).

6. The water outlet structure according to any one of claims 1 to 5, characterized in that: The water outlet comprises a first water outlet (41) and at least one group of second water outlets (42); the first water outlet (41) extends to form a water outlet pipe (47); 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 liquid outlet cavity (4).

7. The water outlet structure according to claim 6, characterized in that: The flow limiting structure comprises a flow limiting plate (43) arranged at the bottom of the liquid outlet chamber (4), and the flow limiting plate (43) separates the bottom of the liquid outlet chamber (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).

8. The water outlet structure according to claim 6, 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).

9. The water outlet structure according to claim 7, 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).

10. A drinking water device, characterized in that: It comprises a water outlet structure as described in any one of claims 1 to 9.

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