Steam exhaust structure for instant faucet

Abstract

This utility model discloses a steam venting structure for an instant hot water faucet, including a steam inlet pipe, a heating pipe, a connecting assembly, and a hot water discharge component. The connecting assembly has independent hot steam passages and water delivery passages. The hot water discharge component includes a steam-water separation box and a hot steam venting pipe. The steam-water separation box has a first steam vent and a first drain outlet, and the hot steam venting pipe has a second steam vent. The input end of the steam inlet pipe is connected to a heat storage tank, and the output end of the steam inlet pipe is connected to the hot steam passage, which is connected to the hot steam venting pipe. The output end of the heating pipe is connected to the water delivery passage, which is connected to the steam-water separation box. The hot steam generated by the heat storage tank passes through the steam inlet pipe, the hot steam passage, and the hot steam venting pipe, and is directly discharged through the second steam vent. The hot water output from the heating pipe enters the steam-water separation box through the water delivery passage, and air bubbles are discharged through the first steam vent. The hot water is discharged from the first drain outlet, solving the problem of air bubble accumulation in pipes in traditional structures.

Description

Technical Field

[0001] This utility model relates to the field of instant hot water faucet technology, specifically a steam exhaust structure for an instant hot water faucet. Background Technology

[0002] Traditional instant hot water faucets typically consist of a storage tank and the faucet body. Hot water from the storage tank enters the faucet body through the inlet pipe, where it undergoes secondary heating to ensure the hot water dispensed by the faucet meets the user's needs. However, the faucet body itself lacks a corresponding steam venting structure, causing hot steam from the storage tank to flow together with the hot water, resulting in numerous air bubbles within the pipes.

[0003] The faucet's internal fluid channels only have an inlet, heating chamber, and outlet, lacking a corresponding venting structure to address the steam problem during hot water delivery. During storage and initial heating, the hot water in the storage tank generates steam due to temperature increases. This steam cannot completely escape from the tank and enters the inlet pipe along with the hot water. When this mixture of steam and hot water enters the faucet, the lack of a venting path prevents the steam from separating from the water, causing it to continue flowing within the pipes. This ultimately results in a large number of bubbles forming a vapor-liquid mixture throughout the fluid channels.

[0004] A large number of air bubbles will occupy part of the space inside the pipe, resulting in unstable actual water flow, intermittent water flow, and fluctuating water pressure, which seriously affects the user experience. Utility Model Content

[0005] To address the aforementioned shortcomings, this invention proposes a steam venting structure for instant hot water faucets. Hot steam generated by the heat storage tank forms a dedicated venting channel via the steam inlet pipe, the hot steam passage in the connecting assembly, and the hot steam vent pipe, directly exiting through the second vent, thus preventing hot steam from entering the hot water delivery path. Hot water output from the heating element enters the water-steam separator through the water delivery passage in the connecting assembly. Any remaining trace bubbles are discharged separately through the first vent, while the hot water enters the subsequent flow path from the first drain outlet. This source-diversion combined with terminal replenishment and separation design completely solves the core problem of bubble accumulation in pipes in traditional structures.

[0006] To achieve this objective, the present invention adopts the following technical solution: A steam exhaust structure for an instant hot water faucet includes a steam inlet pipe, a heating pipe, a connecting assembly, and a hot water exhaust component. The connecting assembly has an independent hot steam passage and a water delivery passage. A water-steam separator is provided at the front end of the hot water exhaust component, and a hot steam exhaust pipe is provided at the rear end of the hot water exhaust component. The water-steam separator and the hot steam exhaust pipe are independent of each other. A first steam exhaust port and a first drain outlet are provided at the bottom of the water-steam separator, and a second steam exhaust port is provided at the bottom of the hot steam exhaust pipe. The input end of the steam inlet pipe is connected to the external heat storage tank, the output end of the steam inlet pipe is connected to the hot steam passage of the connecting component, and the hot steam passage of the connecting component is connected to the hot steam exhaust pipe to form the exhaust passage of the heat storage tank. The output end of the heating tube is connected to the water supply passage of the connecting component, and the water supply passage of the connecting component is connected to the water vapor separation box to form a steam exhaust channel for hot water.

[0007] The water vapor separation box includes an integrally formed water passage connecting pipe and a bottom box, with the front end of the water passage connecting pipe connected to the bottom box; Each of the bottom boxes is provided with a vertical steam distribution plate, and a water distribution plate is provided on the inner side of the bottom box. The two steam distribution plates are vertically installed on the left and right sides of the water distribution plate. The water distribution plate and the two steam distribution plates form a hot water receiving cavity. The water distribution plate is provided with a downward-facing second ring, which is connected to the hot water receiving cavity. The inner cavity of the second ring is the first drain outlet. The inner wall of the bottom box and the two steam distribution plates form a hot steam receiving cavity. The bottom wall of the bottom box is provided with a first ring, which is located outside the second ring. The first ring and the second ring are coaxially arranged, and the annular gap between the inner wall of the first ring and the outer wall of the second ring forms the second steam outlet. The top of the hot water receiving cavity is connected to the top of the hot steam receiving cavity.

[0008] The top of the steam distribution plate is connected to the top wall of the bottom box, and the top of the steam distribution plate is provided with a notch, which connects the hot water receiving cavity and the hot steam receiving cavity.

[0009] The bottom box is also equipped with a spring, the bottom of which is pressed against the second ring, and the top of which is pressed against the top wall of the bottom box.

[0010] A baffle is provided at the end of the bottom box near the water passage pipe. The top of the baffle is vertically connected to the top of the bottom box, and the baffle connects the water passage pipe and the hot water receiving cavity.

[0011] The connecting assembly includes a first connector and a second connector that are interconnected; the first connector includes a first inner sleeve, a first outer sleeve, and a hot steam connecting pipe. The output end of the heating tube is connected to the input end of the first inner sleeve, the first outer sleeve is sleeved on the top of the first inner sleeve, and the inner cavity of the first inner sleeve forms the input end of the water delivery passage. The output end of the steam inlet pipe is connected to the input end of the hot steam connecting pipe. The hot steam connecting pipe is located on the outside of the first inner sleeve. The output end of the hot steam connecting pipe is connected to the bottom of the first outer sleeve. The annular gap between the outer wall of the first inner sleeve and the inner wall of the first outer sleeve, together with the hot steam connecting pipe, forms the input end of the hot steam passage.

[0012] The second connector includes a second inner sleeve, a second outer sleeve, a hot steam discharge pipe, and a hot water discharge pipe; The second outer sleeve is fitted onto the second inner sleeve. The input end of the second inner sleeve is connected to the output end of the first inner sleeve. The input end of the second outer sleeve is connected to the output end of the first outer sleeve. The input end of the hot water discharge pipe is connected to the output end of the second inner sleeve. The output end of the hot water drain pipe is connected to the input end of the water circuit connecting pipe. The first inner sleeve, the second inner sleeve, and the hot water discharge pipe together form the water delivery passage; The input end of the hot steam exhaust pipe is connected to the output end of the second outer sleeve, and the output end of the hot steam exhaust pipe is connected to the input end of the hot steam exhaust pipe. The annular gap between the outer wall of the first inner sleeve and the inner wall of the first outer sleeve, the hot steam connecting pipe, the space between the outer wall of the second inner sleeve and the inner wall of the second outer sleeve, and the hot steam discharge pipe together form the hot steam passage.

[0013] The water-dividing plate has an arc-shaped plate at the top of the first ring, and the center of the arc-shaped plate is far away from the baffle.

[0014] It also includes multiple waterproof rings. A waterproof ring is provided on the outer side of the first ring. A waterproof ring is provided on the outer side of the hot steam exhaust pipe at the second steam exhaust port. A waterproof ring is provided between the hot water discharge component and the second connecting component. A waterproof ring is provided between the second connecting component and the first connecting component. A waterproof ring is provided between the first connecting component and the steam inlet pipe. A waterproof ring is provided between the first connecting component and the heating pipe.

[0015] The technical solution of this utility model can include the following beneficial effects: 1. The hot steam generated by the thermal storage tank forms a dedicated exhaust channel through the steam inlet pipe, the hot steam passage in the connecting assembly, and the hot steam exhaust pipe, directly exiting through the second exhaust port to prevent hot steam from entering the hot water delivery path. The hot water output from the heating pipe enters the water-vapor separator through the water delivery passage in the connecting assembly. Any remaining trace bubbles are discharged separately through the first exhaust port, while the hot water enters the subsequent flow path from the first drain port. This source-diversion combined with terminal replenishment and separation design completely solves the core problem of bubble accumulation in traditional structures.

[0016] 2. Hot steam, with its lower density, can overcome gravity and float upwards, rising along the gap between the outer wall of the steam distributor and the inner wall of the bottom box, eventually accumulating in the hot steam receiving cavity, thus achieving separation of hot water and hot steam. The hot steam accumulating in the cavity, due to the pressure difference between its internal and external atmosphere, flows downwards along the inner wall of the cavity and is discharged through the annular channel between the first and second rings, achieving independent steam output and avoiding the problem of inconsistent water flow from instant hot water faucets caused by the mixing of hot water and hot steam. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the exhaust structure of one embodiment of the present invention; Figure 2 This is a cross-sectional view of the second connector and the hot water discharge component according to one embodiment of this utility model; Figure 3 This is an exploded schematic diagram of a hot water discharge component according to one embodiment of this utility model; Figure 4 This is a cross-sectional view of the first connector in one embodiment of this utility model; Among them, 1. Steam inlet pipe; 2. Heating pipe; 3. Connecting assembly; 31. First connector; 311. First inner sleeve; 312. First outer sleeve; 313. Hot steam connecting pipe; 32. Second connector; 321. Second inner sleeve; 322. Second outer sleeve; 323. Hot steam discharge pipe; 324. Hot water discharge pipe; 4. Hot water discharge component; 41. Water-vapor separator box; 42. Hot steam discharge pipe; 43. Water circuit connecting pipe; 44. Base box; 45. Steam distribution plate; 46. Water distribution plate; 47. Second ring; 48. First ring; 49. Notch; 50. Spring; 51. Baffle; 52. Arc plate. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] In the description of this utility model, it should be understood that the terms "length", "middle", "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "assembly," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The following is combined Figures 1 to 4 This describes a steam exhaust structure for an instant hot water tap according to an embodiment of the present invention.

[0023] A steam exhaust structure for an instant hot water faucet includes a steam inlet pipe 1, a heating pipe 2, a connecting assembly 3, and a hot water exhaust component 4. The connecting assembly 3 has an independent hot steam passage and a water delivery passage. The front end of the hot water exhaust component 4 is provided with a water-steam separation box 41, and the rear end of the hot water exhaust component 4 is provided with a hot steam exhaust pipe 42. The water-steam separation box 41 and the hot steam exhaust pipe 42 are independent of each other. The bottom of the water-steam separation box 41 is provided with a first steam exhaust port and a first water drain port, and the bottom of the hot steam exhaust pipe 42 is provided with a second steam exhaust port. The input end of the steam inlet pipe 1 is connected to the external heat storage tank, the output end of the steam inlet pipe 1 is connected to the hot steam passage of the connecting component 3, and the hot steam passage of the connecting component 3 is connected to the hot steam exhaust pipe 42, forming the exhaust passage of the heat storage tank. The output end of the heating tube 2 is connected to the water supply passage of the connecting component 3, and the water supply passage of the connecting component 3 is connected to the water vapor separation box 41 to form a steam exhaust channel for hot water.

[0024] The hot steam generated by the thermal storage tank forms a dedicated exhaust channel via the steam inlet pipe 1, the hot steam passage in the connecting assembly 3, and the hot steam exhaust pipe 42. It is then directly discharged through the second exhaust port, preventing hot steam from entering the hot water delivery path. The hot water output from the heating pipe 2 enters the water-vapor separator 41 through the water delivery passage in the connecting assembly 3. Any remaining trace bubbles are discharged separately through the first exhaust port, while the hot water enters the subsequent flow path from the first drain port. This source-diversion + terminal replenishment separation design completely solves the core problem of bubble accumulation in traditional pipe structures.

[0025] The water vapor separation box 41 includes an integrally formed water passage connecting pipe 43 and a bottom box 44, with the front end of the water passage connecting pipe 43 connected to the bottom box 44. Each of the bottom boxes 44 is provided with a vertical steam distribution plate 45, and a water distribution plate 46 is provided on the inner side of the bottom box 44. The two steam distribution plates 45 are vertically installed on the left and right sides of the water distribution plate 46, and the water distribution plate 46 and the two steam distribution plates 45 form a hot water receiving cavity. The water distribution plate 46 is provided with a downward-facing second ring 47, which is connected to the hot water receiving cavity. The inner cavity of the second ring 47 is the first drain outlet. The inner wall of the bottom box 44 and the two steam distribution plates 45 form a hot steam receiving cavity. The bottom wall of the bottom box 44 is provided with a first ring 48, which is located outside the second ring 47. The first ring 48 and the second ring 47 are coaxially arranged. The annular gap between the inner wall of the first ring 48 and the outer wall of the second ring 47 forms the second steam outlet. The top of the hot water receiving cavity is connected to the top of the hot steam receiving cavity.

[0026] When the hot water heated by the heating pipe 2 enters the water-vapor separator 41 through the water supply passage of the connecting component 3, it first flows through the water connecting pipe 43 and is then introduced into the interior of the bottom box 44 from the front end of the water connecting pipe 43. Since the top of the hot water receiving chamber is connected to the top of the hot steam receiving chamber, when the hot water and hot steam enter the bottom box 44 at the same time, the hot water moves towards the second ring 47 under the action of gravity and guided by the water distribution plate 46, and then is discharged to the outside from the second ring 47, completing the discharge of hot water.

[0027] Next, the lower density of the hot steam allows it to overcome gravity and float upwards, rising along the gap between the outer wall of the steam distribution plate 45 and the inner wall of the bottom box 44, eventually accumulating in the hot steam receiving cavity, thus achieving the separation of hot water and hot steam. The hot steam accumulating in the hot steam receiving cavity, due to the pressure difference between the internal and external atmosphere, flows downwards along the inner wall of the cavity and is discharged through the annular channel between the first ring 48 and the second ring 47, achieving independent steam output and avoiding the problem of inconsistent water flow from instant hot water faucets caused by the mixing of hot water and hot steam.

[0028] The first steam vent is located outside the first drain outlet. The leaked hot steam will preferentially come into contact with the air and cool down, and is far away from the water outlet that the user touches, which can effectively avoid the risk of scalding or equipment failure.

[0029] The top of the steam distribution plate 45 is connected to the top wall of the bottom box 44. The top of the steam distribution plate 45 is provided with a notch 49, which connects the hot water receiving cavity and the hot steam receiving cavity.

[0030] If the traditional steam distribution plate 45 is not connected to the top wall, it is prone to shaking or deformation due to the impact when hot water flows in at high speed, which will cause the separation between the two chambers to fail. However, the steam distribution plate 45 is vertically connected to the water distribution plate 46 and the top wall of the bottom box 44, which can enhance the bending strength of the bottom box 44 and withstand the impact of long-term water flow without deformation.

[0031] Tiny air bubbles in hot water have low buoyancy and are easily carried by the water flow. If these tiny air bubbles do not flow in a directional channel, they tend to adhere to the inner wall of the hot water receiving cavity or the surface of the water distribution plate 46, making it difficult for them to float naturally. However, the notch 49 is located at the top of the steam distribution plate 45, and a local low-pressure area is formed at the notch 49. This guides the tiny air bubbles to gather upwards along the inner wall of the steam distribution plate 45 and enter the hot steam receiving cavity through the notch 49, further reducing the amount of residual air bubbles in the hot water.

[0032] The bottom box 44 is also provided with a spring 50, the bottom of the spring 50 is in close contact with the second ring 47, and the top of the spring 50 is in close contact with the top wall of the bottom box 44.

[0033] Spring 50 acts as a buffer. When hot water flows out from the first drain outlet, it collides with spring 50, thereby reducing the flow rate of the water. This makes the water column more stable when hot water flows out from the first drain outlet, and the water column has a rounded shape, preventing hot water from splashing and scalding the user.

[0034] A baffle 51 is provided at the end of the bottom box 44 near the water passage connecting pipe 43. The top of the baffle 51 is vertically connected to the top of the bottom box 44. The baffle 51 connects the water passage connecting pipe 43 and the hot water receiving cavity.

[0035] When hot water is injected from the water connection pipe 43, the baffle 51 dissipates the incident kinetic energy of the fluid through surface contact, effectively suppressing turbulence interference caused by high-speed fluid impact and avoiding disturbance of the bubble trajectory by turbulence. After the turbulence is reduced, the tiny bubbles carried in the hot water can float stably under the drive of buoyancy, and complete the initial separation before entering the hot water receiving chamber, reducing the separation load on the subsequent steam separator 45 and water-vapor separation chamber, and improving the efficiency of the overall water-vapor separation process.

[0036] Moreover, the structural layout of the baffle 51 can block the path of hot water moving into the hot steam receiving chamber due to inertial impact, avoid the problem of water and steam being mixed again due to hot water intruding into the hot steam receiving chamber, ensure that all hot water enters the hot water receiving chamber and hot steam only remains in the hot steam receiving chamber, and maintain the functional independence of the two chambers.

[0037] The connecting component 3 includes a first connector 31 and a second connector 32 that are interconnected; the first connector 31 includes a first inner sleeve 311, a first outer sleeve 312 and a hot steam connecting pipe 313. The output end of the heating tube 2 is connected to the input end of the first inner sleeve 311, the first outer sleeve 312 is sleeved on the top of the first inner sleeve 311, and the inner cavity of the first inner sleeve 311 forms the input end of the water delivery passage. The output end of the steam inlet pipe 1 is connected to the input end of the hot steam connecting pipe 313. The hot steam connecting pipe is located on the outside of the first inner sleeve 311. The output end of the hot steam connecting pipe is connected to the bottom of the first outer sleeve 312. The annular gap between the outer wall of the first inner sleeve 311 and the inner wall of the first outer sleeve 312, together with the hot steam connecting pipe, forms the input end of the hot steam passage.

[0038] The inner cavity of the first inner sleeve 311 serves solely as the input end of the water delivery passage, used only for transmitting hot water output from the heating pipe 2. Its enclosed inner cavity structure prevents external fluid intrusion. The hot steam delivered by the steam inlet pipe 1 is introduced through the hot steam connecting pipe into the annular gap between the outer wall of the first inner sleeve 311 and the inner wall of the first outer sleeve 312, and then flows along an independent path into the hot steam passage in the second connector 32. It has no direct contact with the water delivery passage, effectively avoiding interference from fluid pressure changes in one passage to the other.

[0039] The annular gap between the outer wall of the first inner sleeve 311 and the inner wall of the first outer sleeve 312 serves as a hot steam passage. The hot steam flowing through this annular gap can form a thermal buffer layer on the outside of the first inner sleeve 311, effectively reducing the temperature difference between the hot water inside the first inner sleeve 311 and the external environment, and reducing the convective and radiative heat transfer losses of the hot water through the pipe wall.

[0040] The second connector 32 includes a second inner sleeve 321, a second outer sleeve 322, a hot steam discharge pipe 323, and a hot water discharge pipe 324; The second outer sleeve 322 is fitted onto the second inner sleeve 321. The input end of the second inner sleeve 321 is connected to the output end of the first inner sleeve 311. The input end of the second outer sleeve 322 is connected to the output end of the first outer sleeve 312. The input end of the hot water discharge pipe 324 is connected to the output end of the second inner sleeve 321. The output end of the hot water drain pipe is connected to the input end of the water passage connecting pipe 43. The first inner sleeve 311, the second inner sleeve 321, and the hot water discharge pipe 324 together form the water delivery passage; The input end of the hot steam exhaust pipe 323 is connected to the output end of the second outer sleeve 322, and the output end of the hot steam exhaust pipe 323 is connected to the input end of the hot steam exhaust pipe 42. The annular gap between the outer wall of the first inner sleeve 311 and the inner wall of the first outer sleeve 312, the hot steam connecting pipe, the space between the outer wall of the second inner sleeve 321 and the inner wall of the second outer sleeve 322, and the hot steam discharge pipe 323 together form the hot steam passage.

[0041] The hot water passage (first inner sleeve 311 → second inner sleeve 321 → hot water discharge pipe 324 → water vapor separation box 41) and the hot steam passage (hot steam connecting pipe → first inner / outer sleeve annular gap → second inner / outer sleeve annular gap → hot steam discharge pipe 323 → hot steam exhaust pipe 42) are completely independent flow channels with no shared areas or intersections. Hot steam cannot enter the hot water passage, and hot water will not invade the hot steam passage.

[0042] The water-dividing plate 46 is provided with an arc-shaped plate 52 at the top of the first ring 48, and the center of the arc-shaped plate 52 is far away from the baffle 51.

[0043] Baffle 51 first receives the high-speed hot water injected from the water connection pipe 43, slowing down the initial velocity of the water flow through surface contact, thus initially eliminating impact turbulence and forming a gentle water flow. The arc-shaped plate 52, with its center far from baffle 51 and its convex surface facing the water injection direction, further guides the gentle water flow into a more gradual laminar flow along its arc surface. Under the combined action of baffle 51 and arc-shaped plate 52, the water flow remains undisturbed throughout, and the air bubbles carried in the hot water move along stable trajectories, further improving the water vapor separation effect within the bottom box 44.

[0044] It also includes multiple waterproof rings. A waterproof ring is provided on the outer side of the first ring 48. A waterproof ring is provided on the outer side of the hot steam exhaust pipe 42 at the second steam exhaust port. A waterproof ring is provided between the hot water discharge component 4 and the second connecting component 32. A waterproof ring is provided between the second connecting component 32 and the first connecting component 31. A waterproof ring is provided between the first connecting component 31 and the steam inlet pipe 1. A waterproof ring is provided between the first connecting component 31 and the heating pipe 2.

[0045] This utility model is equipped with multiple waterproof rings to form a full-chain sealing design, which not only prevents the high temperature of the outer shell caused by the leakage of hot steam, but also prevents the internal circuit short circuit caused by the leakage of hot water, while eliminating the problem of fluid leakage between different channels.

[0046] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A steam venting structure for an instant hot water tap, characterized in that, It includes a steam inlet pipe, a heating pipe, a connecting assembly, and a hot water discharge component. The connecting assembly has an independent hot steam passage and a water supply passage inside. The front end of the hot water discharge component is provided with a water-vapor separation box, and the rear end of the hot water discharge component is provided with a hot steam exhaust pipe. The water-vapor separation box and the hot steam exhaust pipe are independent of each other. The bottom of the water-vapor separation box is provided with a first steam outlet and a first water outlet, and the bottom of the hot steam exhaust pipe is provided with a second steam outlet. The input end of the steam inlet pipe is connected to the external heat storage tank, the output end of the steam inlet pipe is connected to the hot steam passage of the connecting component, and the hot steam passage of the connecting component is connected to the hot steam exhaust pipe to form the exhaust passage of the heat storage tank. The output end of the heating tube is connected to the water supply passage of the connecting component, and the water supply passage of the connecting component is connected to the water vapor separation box to form a steam exhaust channel for hot water.

2. The steam exhaust structure for an instant hot water tap according to claim 1, characterized in that, The water vapor separation box includes an integrally formed water passage connecting pipe and a bottom box, with the front end of the water passage connecting pipe connected to the bottom box; Each of the bottom boxes is provided with a vertical steam distribution plate, and a water distribution plate is provided on the inner side of the bottom box. The two steam distribution plates are vertically installed on the left and right sides of the water distribution plate. The water distribution plate and the two steam distribution plates form a hot water receiving cavity. The water distribution plate is provided with a downward-facing second ring, which is connected to the hot water receiving cavity. The inner cavity of the second ring is the first drain outlet. The inner wall of the bottom box and the two steam distribution plates form a hot steam receiving cavity. The bottom wall of the bottom box is provided with a first ring, which is located outside the second ring. The first ring and the second ring are coaxially arranged, and the annular gap between the inner wall of the first ring and the outer wall of the second ring forms the second steam outlet. The top of the hot water receiving cavity is connected to the top of the hot steam receiving cavity.

3. The steam exhaust structure for an instant hot water tap according to claim 2, characterized in that, The top of the steam distribution plate is connected to the top wall of the bottom box, and the top of the steam distribution plate is provided with a notch, which connects the hot water receiving cavity and the hot steam receiving cavity.

4. The steam exhaust structure for an instant hot water tap according to claim 3, characterized in that, The bottom box is also equipped with a spring, the bottom of which is pressed against the second ring, and the top of which is pressed against the top wall of the bottom box.

5. The steam exhaust structure for an instant hot water tap according to claim 4, characterized in that, A baffle is provided at the end of the bottom box near the water passage pipe. The top of the baffle is vertically connected to the top of the bottom box, and the baffle connects the water passage pipe and the hot water receiving cavity.

6. The steam venting structure for an instant hot water tap according to claim 5, characterized in that, The connecting assembly includes a first connector and a second connector that are interconnected; the first connector includes a first inner sleeve, a first outer sleeve, and a hot steam connecting pipe. The output end of the heating tube is connected to the input end of the first inner sleeve, the first outer sleeve is sleeved on the top of the first inner sleeve, and the inner cavity of the first inner sleeve forms the input end of the water delivery passage. The output end of the steam inlet pipe is connected to the input end of the hot steam connecting pipe. The hot steam connecting pipe is located on the outside of the first inner sleeve. The output end of the hot steam connecting pipe is connected to the bottom of the first outer sleeve. The annular gap between the outer wall of the first inner sleeve and the inner wall of the first outer sleeve, together with the hot steam connecting pipe, forms the input end of the hot steam passage.

7. The steam exhaust structure for an instant hot water tap according to claim 6, characterized in that, The second connector includes a second inner sleeve, a second outer sleeve, a hot steam discharge pipe, and a hot water discharge pipe; The second outer sleeve is fitted onto the second inner sleeve. The input end of the second inner sleeve is connected to the output end of the first inner sleeve. The input end of the second outer sleeve is connected to the output end of the first outer sleeve. The input end of the hot water discharge pipe is connected to the output end of the second inner sleeve. The output end of the hot water drain pipe is connected to the input end of the water circuit connecting pipe. The first inner sleeve, the second inner sleeve, and the hot water discharge pipe together form the water delivery passage; The input end of the hot steam exhaust pipe is connected to the output end of the second outer sleeve, and the output end of the hot steam exhaust pipe is connected to the input end of the hot steam exhaust pipe. The annular gap between the outer wall of the first inner sleeve and the inner wall of the first outer sleeve, the hot steam connecting pipe, the space between the outer wall of the second inner sleeve and the inner wall of the second outer sleeve, and the hot steam discharge pipe together form the hot steam passage.

8. The steam exhaust structure for an instant hot water tap according to claim 5, characterized in that, The water-dividing plate has an arc-shaped plate at the top of the first ring, and the center of the arc-shaped plate is far away from the baffle.

9. The steam venting structure for an instant hot water tap according to claim 7, characterized in that, It also includes multiple waterproof rings. A waterproof ring is provided on the outer side of the first ring. A waterproof ring is provided on the outer side of the hot steam exhaust pipe at the second steam exhaust port. A waterproof ring is provided between the hot water discharge component and the second connecting component. A waterproof ring is provided between the second connecting component and the first connecting component. A waterproof ring is provided between the first connecting component and the steam inlet pipe. A waterproof ring is provided between the first connecting component and the heating pipe.

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