Water replenishment assembly for a water inlet valve, water inlet valve and water using device

Abstract

The application relates to the technical field of valves, and discloses a water supplement assembly for a water inlet valve, a water inlet valve and a water-using device. The water supplement assembly comprises a first valve body, a valve core and a pressure relief part. The first valve body is provided with a water inlet, a water supplement channel and a water outlet. One end of the water supplement channel is communicated to the water inlet, and the other end of the water supplement channel is communicated to the water outlet. The valve core is arranged on the first valve body, and the valve core can selectively extend into the water supplement channel to communicate or cut off the water inlet and the water outlet. The pressure relief part is arranged on the first valve body or the valve core, and the pressure relief part is configured to selectively communicate the water supplement channel with the outside. The water supplement assembly according to the application improves water channel safety.

Description

Technical Field

[0001] This application relates to the field of valve technology, and in particular to a water supply component for an inlet valve, an inlet valve, and a water-using device. Background Technology

[0002] A wall-hung boiler water system is a type of water heater that uses natural gas as its energy source. It provides powerful central heating for multiple rooms and also supplies domestic hot water for bathing, kitchens, and other areas. Over time, the water level in the internal circulation system of a wall-hung boiler will gradually decrease, requiring the addition of water through a water inlet valve. During this replenishment process, the inlet pressure may sometimes exceed the limit, potentially damaging the water system.

[0003] Therefore, improving waterway safety is a pressing technical problem that needs to be solved. Utility Model Content

[0004] This application provides a water replenishment component for an inlet valve, an inlet valve, and a water-using device. The water replenishment component according to this application improves the safety of the water circuit.

[0005] To achieve the above objectives, the main technical solutions adopted in this application include:

[0006] In a first aspect, embodiments of this application provide a water supply component for an inlet valve, including a first valve body, a valve core, and a pressure relief part; the first valve body has an inlet, a water supply channel, and an outlet, one end of the water supply channel is connected to the inlet, and the other end of the water supply channel is connected to the outlet; the valve core is disposed on the first valve body, and the valve core can selectively extend into the water supply channel to connect or disconnect the inlet and the outlet; the pressure relief part is disposed on the first valve body or the valve core, and the pressure relief part is configured to selectively connect the water supply channel to the outside.

[0007] According to the embodiment of the first aspect of this application, a water supply component for an inlet valve is provided. This component eliminates the need to drill holes, add pipes, or modify the casing on the wall-hung boiler body. It fully utilizes the space of the original valve core or valve body of the water supply component to achieve the pressure relief function. When the inlet water pressure rises abnormally, it can connect the water supply channel to the outside to quickly reduce the pressure. After the pressure drops to a safe threshold, the pressure relief part can automatically reset and close, and the water supply channel can resume normal water supply. This design reduces the probability of excessive water pressure and improves water circuit safety. On the other hand, it preserves the sealing and structural stability of the original water circuit system of the wall-hung boiler, facilitates replacement, and improves ease of use.

[0008] Optionally, the inlet and outlet are spaced apart along the first direction, and the valve core is movably disposed on the first valve body along the first direction to extend into or out of the water supply channel.

[0009] In the above solution, on the one hand, the water supply channel is made into a straight flow channel, which greatly reduces the turning resistance and pressure loss of the water flow in the channel. This not only improves the water supply speed, but also avoids local pressure accumulation caused by the bend of the flow channel. On the other hand, the movement direction of the valve core is consistent with the water flow direction and the extension direction of the flow channel. When the valve core extends / retracts, it can fit more precisely with the water supply channel, reducing the risk of poor sealing or jamming caused by misalignment of the valve core, and improving the reliability of on / off control.

[0010] Optionally, the water supply channel includes a first water supply channel, a second water supply channel and a third water supply channel, with the inlet located at the inlet end of the first water supply channel and the outlet located at the outlet end of the third water supply channel. The second water supply channel is used to connect the outlet end of the first water supply channel and the inlet end of the third water supply channel.

[0011] In the above scheme, the second water supply channel can connect the first water supply channel and the third water supply channel, allowing the water supply path to be flexibly adjusted according to the internal space of the first valve body. This avoids excessively long flow channels and excessive bends due to the small space of the valve body, making full use of the space in different areas inside the valve body, making the overall structure of the component more compact, and making it easier to adapt to the limited installation space inside the wall-hung boiler.

[0012] Optionally, the pressure relief section includes a pressure relief channel and a sealing seat. The pressure relief channel is disposed on the valve core and its two ends are respectively connected to the water supply channel and the outside. The sealing seat is movably disposed on the valve core to connect or block the pressure relief channel.

[0013] In the above solution, the valve core and the pressure relief section are integrated into one unit, eliminating the need to open a pressure relief hole or arrange an independent pressure relief pipeline on the first valve body. The valve core can control the opening and closing of the water supply channel through its own movement, and can also achieve overpressure protection through its own pressure relief channel and sealing seat. The two share the valve core carrier but have independent functions, eliminating the need to add extra parts, reducing the complexity of component processing and assembly, and taking into account both safety and production practicality.

[0014] Optionally, the pressure relief channel includes a first pressure relief channel and a second pressure relief channel connected in sequence. The first pressure relief channel is connected to the water supply channel, and the second pressure relief channel is connected to the outside. The cross-sectional area of ​​the first pressure relief channel is smaller than that of the second pressure relief channel to form a stepped portion, and the sealing seat may optionally abut against the stepped portion.

[0015] In the above solution, the sealing seat does not need to rely on an additional limiting structure. It can accurately block the first pressure relief channel simply by fitting against the step. The cross-sectional area of ​​the first pressure relief channel is small, and the pressure of the overpressure water flow in the first channel will be more concentrated. Only a small overpressure value is needed to push the sealing seat away from the step, which greatly improves the sensitivity of the pressure relief response and avoids damage to the valve body due to excessive pressure accumulation. The cross-sectional area of ​​the second pressure relief channel is larger, which can effectively reduce the discharge resistance of the overpressure water flow. It can quickly and in large quantities discharge the overpressure water flow to the outside, shorten the pressure relief time, avoid secondary pressure accumulation in the pressure relief channel, and further protect the structural safety of the water supply channel and the first valve body.

[0016] Optionally, the pressure relief section also includes an elastic element and an adjusting seat. The adjusting seat is threaded into the inner wall of the pressure relief channel. Along the axial direction of the valve core, one end of the elastic element is connected to the adjusting seat, and the other end of the elastic element is connected to the sealing seat.

[0017] In the above solution, the elastic element can provide a stable reset force for the sealing seat, avoiding the reset lag caused by the sealing seat's own weight or water flow disturbance, ensuring that it can be quickly and reliably resealed after pressure relief, and improving the operational stability of the pressure relief part. At the same time, the threaded fit of the adjusting seat not only improves the sealing performance between the adjusting seat and the valve core, reducing the probability of liquid leakage, but also facilitates changing the position of the adjusting seat, realizing the adjustable pressure relief threshold. Simply rotating the adjusting seat can adapt to the safety pressure requirements of different wall-hung boiler water circuits, meet the differences in water supply pressure in different regions and the pressure resistance standards of different models of wall-hung boilers, and greatly enhance the versatility and scenario adaptability of the water supply component.

[0018] Optionally, the sealing seat includes a seat body and a sealing gasket. The seat body has a limiting groove, and the sealing gasket is embedded in the limiting groove. The sealing gasket is constructed of an elastic material, and the stepped portion is provided with an annular protrusion surrounding the first pressure relief channel. The sealing gasket may optionally abut against the stepped portion.

[0019] In the above scheme, the combination of elastic sealing gasket and annular protrusion can significantly improve sealing accuracy. Elastic material (such as rubber) itself has good sealing performance, while the annular protrusion concentrates the sealing area in the annular area around the first pressure relief channel, making the contact pressure more concentrated (the pressure per unit area is greater). Combined with the elastic deformation of the sealing gasket, it can effectively compensate for minor errors in processing or assembly, making it more difficult to leak than the sealing method of planar contact, and ensuring the absolute sealing of the pressure relief channel under normal working conditions.

[0020] Secondly, embodiments of this application provide a water inlet valve, including a second valve body and a water replenishment component according to any embodiment; the second valve body has an inlet channel and an outlet channel; the first valve body is connected to the second valve body, the inlet is connected to the inlet channel, and the outlet is connected to the outlet channel.

[0021] According to the second aspect of the present application, an inlet valve is provided that does not require additional independent pressure relief or control components to be installed outside the inlet valve. This greatly simplifies the connection structure between the inlet valve and the water circuit of the wall-hung boiler, reduces the number of external pipes and interfaces, and improves the structural compactness. On the one hand, it reduces the probability of excessive water pressure and improves water circuit safety. On the other hand, it can replenish water when the water pressure is insufficient. Furthermore, the water replenishment component is easy to replace, which improves the convenience of use.

[0022] Optionally, the first valve body and the second valve body are detachably connected.

[0023] In the above solution, when the first valve body, which integrates water replenishment and pressure relief functions, experiences faults such as valve core wear or pressure relief failure, it is not necessary to disassemble or replace the entire inlet valve. Only the first valve body needs to be removed for individual replacement or repair, which greatly reduces maintenance costs and downtime, and avoids wasting the entire component due to local faults.

[0024] Thirdly, embodiments of this application provide a water heater, including the inlet valve of any of the embodiments.

[0025] A water heater according to the third aspect of this application reduces the probability of excessive water pressure, improves water circuit safety, and can replenish water when the water pressure is insufficient. In addition, the water replenishment component is easy to replace, which improves the convenience of use. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of the water replenishment component in some embodiments of this application;

[0028] Figure 2 This is a top view of the water replenishment component in some embodiments of this application;

[0029] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0030] Figure 4 This is a schematic diagram of the overall structure of the water inlet valve in some embodiments of this application;

[0031] Figure 5 This is a top view of the inlet valve in some embodiments of this application;

[0032] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0033] Figure 7 This is a cross-sectional structural diagram of the water replenishment component in some other embodiments of this application.

[0034] [Explanation of Labels in the Attached Image]

[0035] 100. Hydration components;

[0036] 110. First valve body; 111. Inlet; 112. Outlet;

[0037] 113. Water supply channel; 113a. First water supply channel; 113b. Second water supply channel; 113c. Third water supply channel;

[0038] 120. Valve core;

[0039] 130. Pressure relief section;

[0040] 131, pressure relief channel; 131a, first pressure relief channel; 131b, second pressure relief channel; 131c, stepped section; 131cc, annular protrusion;

[0041] 132, Sealing seat; 132a, Sealing body; 132aa, Limiting groove; 132b, Sealing gasket;

[0042] 133. Elastic element; 134. Adjusting seat;

[0043] 200. Second valve body; 210. Inlet channel; 220. Outlet channel;

[0044] X, the first direction. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0047] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" 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 communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0049] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0050] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0051] A wall-hung boiler water system is a type of water heater that uses natural gas as its energy source. It has a powerful central heating function, capable of meeting the heating needs of multiple rooms, and can also provide domestic hot water for bathing, kitchens, and other areas. Over time, the water level in the internal circulation system of a wall-hung boiler will gradually decrease, so it is necessary to replenish the internal circulation system with water through a water inlet valve.

[0052] During the water replenishment process, the inlet water pressure may sometimes exceed the limit, damaging the water circuit. If an overpressure protection device is added to the inlet water pipe, the risk of overpressure will be greatly reduced. However, existing wall-hung boilers usually do not have a pressure relief valve or a reserved pressure relief valve interface. Given the existing interface, it is difficult to add a new interface to install an overpressure protection device. Adding a new interface requires a redesign of the wall-hung boiler structure, which greatly increases the cost.

[0053] Therefore, improving waterway safety is a pressing technical problem that needs to be solved.

[0054] In view of this, in order to improve the safety of the water circuit, this application proposes a water supply component 100 for the water inlet valve. The pressure relief part 130 is disposed in the first valve body 110 or the valve core 120. The pressure relief part 130 is configured to selectively connect the water supply channel 113 to the outside. There is no need to open holes, add pipes or modify the shell on the wall-hung boiler body. The pressure relief function is achieved by making full use of the space of the original valve core 120 or valve body of the water supply component 100. When the water inlet pressure rises abnormally, the water supply channel 113 can be connected to the outside to quickly reduce the pressure. After the pressure drops to the safe threshold, the pressure relief part 130 can automatically reset and close, and the water supply channel 113 can resume normal water supply. This setting reduces the probability of excessive water pressure and improves the safety of the water circuit. On the other hand, it preserves the sealing and structural stability of the original water circuit system of the wall-hung boiler, facilitates replacement, and improves the convenience of use.

[0055] The water replenishment component 100 proposed in this application is described below with reference to the accompanying drawings.

[0056] like Figures 1-3 As shown, the water replenishment component 100 according to the first aspect embodiment of this application includes a first valve body 110, a valve core 120, and a pressure relief part 130.

[0057] The first valve body 110 has an inlet 111, a water replenishment channel 113, and an outlet 112. One end of the water replenishment channel 113 is connected to the inlet 111, and the other end of the water replenishment channel 113 is connected to the outlet 112. It can be understood that when the water circuit needs to be replenished, the water flow can enter the water circuit through the inlet 111, the water replenishment channel 113, and the outlet 112 to replenish the water. In other words, the first valve body 110 can provide a flow channel for water replenishment.

[0058] The valve core 120 is disposed in the first valve body 110. The valve core 120 can be selectively inserted into the water replenishment channel 113 to connect or disconnect the water inlet 111 and the water outlet 112. It can be understood that when the water circuit needs to be replenished, the valve core 120 can be adjusted to not extend into or only partially extend into the water replenishment channel 113, so that the water inlet 111, the water replenishment channel 113 and the water outlet 112 form a complete water flow path, and the external water source can smoothly enter the water circuit through this path.

[0059] When water replenishment is complete, the preset water volume is reached, or water replenishment needs to be paused, the valve core 120 can fully extend into the water replenishment channel 113, directly blocking the water flow between the inlet 111 and the outlet 112, preventing continuous water inflow that could lead to excessive water pressure or water overflow. In other words, the valve core 120 can both open as needed to replenish water and meet the water volume requirements of the water circuit, and promptly cut off the water flow to prevent safety hazards caused by excessive water replenishment, thus improving the reliability of water replenishment control.

[0060] The pressure relief section 130 is located in the first valve body 110 or the valve core 120. The pressure relief section 130 is configured to selectively connect the water supply channel 113 to the outside. It can be understood that when the water supply channel 113 experiences a sudden increase in inlet pressure, exceeding the safe pressure range of the water circuit, the pressure relief section 130 will automatically open to discharge the overpressure water in the water supply channel 113 to the outside and quickly release excess pressure. When the pressure in the water supply channel 113 drops back to the safe threshold, the pressure relief section 130 will automatically close to maintain the sealing of the water supply channel 113 and ensure that the water flow can flow to the outlet 112 during normal water supply without pressure loss.

[0061] In other words, there is no need to make additional holes or install independent pressure relief components in the wall-hung boiler body. The pressure relief function can be achieved by relying solely on the existing space of the first valve body 110 or valve core 120. This reduces the cost of modifying the overall structure and can relieve pressure when there is a risk of overpressure, preventing excessive pressure from damaging the valve body or subsequent water circuit components, thus improving water circuit safety.

[0062] In other embodiments, please refer to Figure 1 , Figure 2 and Figure 3 Along the first direction X, the inlet 111 and the outlet 112 are spaced apart. Along the first direction X, the valve core 120 is movably disposed on the first valve body 110 to extend into or out of the water supply channel 113.

[0063] Understandably, when water needs to be replenished, the valve core 120 moves outward along the first direction X and extends into the water replenishment channel 113. At this time, the inlet 111 and the outlet 112 are spaced apart along the same direction and are not blocked by the valve core 120, forming a straight path extending along the first direction X. After the water enters from the inlet 111, it can flow directly to the outlet 112 along this straight flow path without needing to bend or turn. When water replenishment needs to be stopped, the valve core 120 moves inward along the first direction X and extends into the water replenishment channel 113, which can accurately align with the flow channel area between the inlet 111 and the outlet 112, directly blocking the water flow path and preventing water from leaking through the gap.

[0064] This design creates a straight flow channel in the water supply channel 113, significantly reducing the turning resistance and pressure loss of the water flow. This not only increases the water supply speed but also avoids local pressure buildup caused by the bend in the flow channel.

[0065] On the other hand, by ensuring that the movement direction of the valve core 120 is consistent with the water flow direction and the extension direction of the flow channel, the valve core 120 can fit more precisely with the water supply channel 113 when it extends / retracts, reducing the risk of poor sealing or jamming caused by misalignment of the valve core 120 and improving the reliability of on / off control.

[0066] Meanwhile, the same-direction layout allows for a more compact arrangement of the inlet 111, outlet 112, and valve core 120 within the first valve body 110, making full use of the internal space of the valve body, adapting to the small installation environment of the wall-hung boiler, without the need to additionally expand the valve body volume, thus improving the structural compactness.

[0067] In other embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The water supply channel 113 includes a first water supply channel 113a, a second water supply channel 113b, and a third water supply channel 113c.

[0068] The inlet 111 is located at the inlet end of the first water supply channel 113a, the outlet 112 is located at the outlet end of the third water supply channel 113c, and the second water supply channel 113b is used to connect the outlet end of the first water supply channel 113a and the inlet end of the third water supply channel 113c.

[0069] It is understandable that when the water supply is started, the external water source will first enter the inlet 111 of the first water supply channel 113a, flow steadily along the first water supply channel 113a, and then smoothly connect to the third water supply channel 113c through the second water supply channel 113b, and finally flow into the water supply system to be replenished from the outlet 112 of the third water supply channel 113c.

[0070] The second water supply channel 113b can connect the first water supply channel 113a and the third water supply channel 113c, allowing the water supply path to be flexibly adjusted according to the internal space of the first valve body 110. This avoids excessively long flow channels and bends due to the limited space of the valve body, making full use of the space in different areas of the valve body, making the overall structure of the component more compact and easier to adapt to the limited installation space inside the wall-hung boiler. It also reduces the impact and resistance of water flow at the turning points of the flow channel, avoids local pressure accumulation, and improves reliability.

[0071] As an example, the first water supply channel 113a and the third water supply channel 113c are both spaced apart in the first direction X. The second water supply channel 113b connects one end of the first water supply channel 113a and one end of the third water supply channel 113c. The other end of the first water supply channel 113a is connected to the water inlet 111, and the other end of the third water supply channel 113c is connected to the water outlet 112.

[0072] Meanwhile, the valve core 120 is located in the second water supply channel 113b. With this configuration, on the one hand, the valve core 120 can directly extend into or out of the second water supply channel 113b along the first direction X without having to deal with changes in the flow channel direction. This allows for more precise blocking or guiding of water flow, avoiding problems such as poor sealing and jamming caused by misalignment between the flow channel and the valve core 120's movement direction, and significantly improving the reliability of water supply start and stop.

[0073] As an example, the first direction X is parallel to the vertical direction, the first water supply channel 113a and the third water supply channel 113c are arranged horizontally, and the second water supply channel 113b is arranged vertically. The lower ends of the first water supply channel 113a and the second water supply channel 113b can be connected or blocked, and the upper end of the third water supply channel 113c is connected to the upper end of the second water supply channel 113b. It can be seen that this embodiment is a vertical water supply, the valve core 120 is arranged vertically, and it can reliably cooperate with the bottom plate of the wall-mounted boiler (not shown in the figure), which facilitates the sealing between the valve core 120 and the bottom plate of the wall-mounted boiler. Furthermore, setting the orientation of the valve core 120 and the water inlet connector to be consistent is beneficial to the packaging and transportation of the water inlet valve.

[0074] As an example, the first direction X can intersect with the vertical direction. That is to say, the first water supply channel 113a and the third water supply channel 113c can be arranged at an angle relative to the vertical direction, or partially arranged opposite each other, or curved arc-shaped channels, etc. This application does not limit this.

[0075] In other embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The pressure relief section 130 includes a pressure relief channel 131 and a sealing seat 132. The pressure relief channel 131 is disposed on the valve core 120 and its two ends are respectively connected to the water supply channel 113 and the outside. The sealing seat 132 is movably disposed on the valve core 120 to connect or block the pressure relief channel 131.

[0076] Understandably, when the pressure inside the water supply channel 113 is within a safe range, the sealing seat 132 will remain in the position of blocking the pressure relief channel 131, ensuring that the water flow inside the water supply channel 113 will not leak from the pressure relief channel 131, allowing the water flow to pass completely through the water supply channel 113 to the outlet 112, thus ensuring normal water supply efficiency.

[0077] When the pressure inside the water supply channel 113 exceeds the limit, the overpressure water flow will exert a thrust on the sealing seat 132, pushing the sealing seat 132 to move on the valve core 120, so that the pressure relief channel 131 switches from the blocked state to the open state. At this time, the overpressure water flow can be directly discharged to the outside through the pressure relief channel 131, quickly reducing the pressure inside the water supply channel 113. After the pressure returns to a safe value, the sealing seat 132 can reset and re-seal the pressure relief channel 131.

[0078] With this configuration, the valve core 120 and the pressure relief section 130 are integrated into one unit, eliminating the need to open additional pressure relief holes or arrange independent pressure relief pipelines on the first valve body 110. This saves internal space in the first valve body 110 and allows the pressure relief channel 131 to be directly connected to the water supply channel 113. Overpressure can be directly applied to the sealing seat 132, greatly improving the pressure relief response speed.

[0079] On the other hand, the sealing seat 132 is movably disposed on the valve core 120. The movement path of the sealing seat 132 is restricted inside the valve core 120, and it will not be misaligned or shifted due to factors such as valve body vibration and water flow impact. This ensures both the sealing performance during sealing and prevents leakage during normal water replenishment, and also ensures smooth movement during overpressure, preventing jamming that could lead to pressure relief failure, thus improving the reliability of the pressure relief function.

[0080] Meanwhile, the valve core 120 can control the opening and closing of the water supply channel 113 through its own movement, and can also achieve overpressure protection through its own pressure relief channel 131 and sealing seat 132. The two share the valve core 120 carrier but have independent functions, without the need to add extra parts, reducing the complexity of component processing and assembly, and taking into account both safety and production practicality.

[0081] As an example, please refer to Figure 7 The pressure relief channel 131 can be set in the first valve body 110 and its two ends are respectively connected to the water supply channel 113 and the outside. The sealing seat 132 is movably set in the first valve body 110 to connect or block the pressure relief channel 131.

[0082] In other embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The pressure relief channel 131 includes a first pressure relief channel 131a and a second pressure relief channel 131b connected in sequence. The first pressure relief channel 131a is connected to the water supply channel 113, and the second pressure relief channel 131b is connected to the outside. The cross-sectional area of ​​the first pressure relief channel 131a is smaller than the cross-sectional area of ​​the second pressure relief channel 131b to form a step portion 131c. The sealing seat 132 can be selectively abutted against the step portion 131c.

[0083] Understandably, when the pressure inside the water supply channel 113 is within a safe range, the sealing seat 132 will tightly abut against the step portion 131c, blocking the inlet of the first pressure relief channel 131a with a smaller cross-sectional area. The first pressure relief channel 131a is directly connected to the water supply channel 113. This setting can accurately block the water flow from the water supply channel 113 into the pressure relief channel 131, avoiding the problems of water leakage and pressure relief failure during normal water supply.

[0084] When the pressure inside the water supply channel 113 exceeds the limit, the overpressure water flow will generate a continuous thrust on the sealing seat 132. When the thrust exceeds the stop resistance of the sealing seat 132, the sealing seat 132 will detach from the step portion 131c and move towards the second pressure relief channel 131b. At this time, the overpressure water flow can quickly enter the second pressure relief channel 131b with a larger cross-sectional area through the first pressure relief channel 131a, and smoothly discharge to the outside along the second pressure relief channel 131b until the pressure inside the water supply channel 113 drops to a safe value. Then, the sealing seat 132 will reset to stop the step portion 131c and re-seal the pressure relief channel 131.

[0085] With this configuration, the sealing seat 132 does not need to rely on an additional limiting structure. It can accurately seal the first pressure relief channel 131a simply by fitting against the step portion 131c. This reduces the probability of sealing seat 132 shifting due to displacement, reduces wear caused by excessive compression of the first pressure relief channel 131a by the sealing seat 132, and ensures that the pressure relief channel 131 is always reliably sealed during normal water replenishment, without affecting the water replenishment efficiency.

[0086] On the other hand, the cross-sectional area of ​​the first pressure relief channel 131a is small, and the pressure of the overpressure water flow in the first channel will be more concentrated. Only a small overpressure value is needed to push the sealing seat 132 away from the step portion 131c, which greatly improves the sensitivity of the pressure relief response and avoids damage to the valve body due to excessive pressure accumulation.

[0087] The second pressure relief channel 131b has a larger cross-sectional area, which can effectively reduce the discharge resistance of the overpressure water flow. After the water flow enters the wide channel from the narrow channel, the flow velocity will not be blocked due to the channel restriction. The overpressure water flow can be discharged to the outside quickly and in large quantities, shortening the pressure relief time and avoiding secondary pressure accumulation in the pressure relief channel 131, further protecting the structural safety of the first valve body 110.

[0088] There is no need to set additional components such as the limiting block and guide rod of the sealing seat 132 inside the valve core 120. The stepped part 131c can be formed simply by changing the diameter of the pressure relief channel 131. This reduces the number of parts inside the valve core 120 and saves internal space. It allows the pressure relief part 130 to be more compactly integrated with the valve core 120, improves structural compactness, avoids assembly difficulties caused by additional parts occupying space, and reduces processing and assembly complexity.

[0089] In other embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The pressure relief section 130 also includes an elastic element 133 and an adjusting seat 134. The adjusting seat 134 is threadedly engaged with the inner wall of the pressure relief channel 131. Along the axial direction of the valve core 120, one end of the elastic element 133 is connected to the adjusting seat 134, and the other end of the elastic element 133 is connected to the sealing seat 132.

[0090] Under normal conditions, the elastic element 133 applies a continuous pre-tightening force to the sealing seat 132, pushing the sealing seat 132 to tightly abut against the step portion 131c to block the pressure relief channel 131, ensuring that water does not leak during the water replenishment process. When the pressure in the water replenishment channel 113 exceeds the limit, the thrust of the overpressure water flow on the sealing seat 132 will overcome the pre-tightening force of the elastic element 133, pushing the sealing seat 132 to compress the elastic element 133 and move towards the adjusting seat 134, so that the pressure relief channel 131 is connected to achieve pressure relief. After the pressure is restored, the elastic force of the elastic element 133 will push the sealing seat 132 to reset and re-seal the pressure relief channel 131.

[0091] With this configuration, the position of the adjusting seat 134 can be changed by using the threaded engagement between the adjusting seat 134 and the inner wall of the pressure relief channel 131. By changing the position of the adjusting seat 134 along the axial direction of the valve core 120, the compression amount of the elastic element 133 can be adjusted. The greater the compression amount, the greater the preload of the elastic element 133 on the sealing seat 132, and the higher the pressure threshold required to trigger pressure relief. Conversely, the lower the compression amount, the lower the threshold.

[0092] In other words, the elastic element 133 can provide a stable reset force for the sealing seat 132, avoiding the reset delay of the sealing seat 132 due to its own weight or water flow disturbance, ensuring that it can be quickly and reliably resealed after pressure relief, and improving the operational stability of the pressure relief part 130.

[0093] On the other hand, the threaded fit of the regulating seat 134 not only improves the sealing between the regulating seat 134 and the valve core 120 and reduces the chance of liquid leakage, but also makes it easy to change the position of the regulating seat 134 to achieve adjustable pressure relief threshold. Simply rotating the regulating seat 134 can adapt to the safety pressure requirements of different wall-hung boiler water circuits, meet the differences in water supply pressure in different regions and the pressure resistance standards of different models of wall-hung boilers, and greatly enhance the versatility and scenario adaptability of the water supply component 100.

[0094] Meanwhile, the threaded fit has self-locking properties, and once the position of the adjusting seat 134 is determined, it is not easy to loosen due to factors such as vibration and water flow impact, thus ensuring the stability of the pressure relief threshold and avoiding accidental pressure relief or untimely pressure relief.

[0095] In addition, the elastic element 133 and the adjusting seat 134 are both integrated inside the pressure relief channel 131, without occupying additional space in the valve body. They form a compact integrated structure with the valve core 120, sealing seat 132 and other components, which is convenient for use in the narrow installation environment inside the wall-hung boiler and improves the structural compactness.

[0096] In other embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The sealing seat 132 includes a seat body 132a and a sealing gasket 132b. The seat body 132a has a limiting groove 132aa, and the sealing gasket 132b is embedded in the limiting groove 132aa. The sealing gasket 132b is made of an elastic material. The stepped portion 131c is provided with an annular protrusion 131cc surrounding the first pressure relief channel 131a. The sealing gasket 132b can be selectively abutted against the stepped portion 131c.

[0097] Understandably, when the pressure inside the water supply channel 113 is normal, the sealing gasket 132b made of elastic material will be tightly fitted with the annular protrusion 131cc of the step portion 131c under the thrust of the elastic element 133. The annular protrusion 131cc is set around the first pressure relief channel 131a, and forms an annular line contact with the sealing gasket 132b. The elasticity of the sealing gasket 132b allows it to deform slightly with the shape of the protrusion, and can fill the gap through its own deformation, completely blocking the connection between the first pressure relief channel 131a and the second pressure relief channel 131b, reducing the probability of water leakage from the pressure relief channel 131 during normal water supply. When the pressure exceeds the limit, the sealing gasket 132b detaches from the annular protrusion 131cc along with the seat body 132a, and the pressure relief channel 131 opens. After the pressure is restored, the sealing gasket 132b can accurately reset and re-fit with the annular protrusion 131cc to ensure reliable sealing.

[0098] This design allows the elastic sealing gasket 132b and the annular protrusion 131cc to work together to significantly improve sealing accuracy. The elastic material (such as rubber) itself has good sealing properties, while the annular protrusion 131cc concentrates the sealing area in the annular region surrounding the first pressure relief channel 131a, making the contact pressure more concentrated (higher pressure per unit area). Combined with the elastic deformation of the sealing gasket 132b, it can effectively compensate for minor errors in processing or assembly, making it more difficult for leakage to occur than the sealing method of planar contact, ensuring the absolute sealing of the pressure relief channel 131 under normal operating conditions.

[0099] On the other hand, the fixing effect of the limiting groove 132aa on the sealing gasket 132b can enhance the structural stability. The sealing gasket 132b is embedded in the limiting groove 132aa of the seat body 132a, and will not be displaced or fall off due to water flow impact, movement of the sealing seat 132, etc., thus avoiding misalignment caused by the offset of the sealing gasket 132b. This ensures that the sealing gasket 132b can be accurately aligned with the annular protrusion 131cc every time it is sealed, maintaining a stable sealing effect.

[0100] Meanwhile, the sealing gasket 132b is made of elastic material, and its contact with the annular protrusion 131cc is a "soft contact" rather than the hard contact between the seat body 132a and the step portion 131c. This can buffer the impact force when the sealing seat 132 is reset, reduce mechanical wear between the two, and avoid local damage to the sealing gasket 132b caused by excessive compression or friction. This significantly extends the replacement cycle of the sealing gasket 132b and reduces maintenance costs.

[0101] Secondly, please refer to Figure 4 , Figure 5 and Figure 6 This application provides a water inlet valve, including a second valve body 200 and a water supply component 100 according to any embodiment; the second valve body 200 has an inlet channel 210 and an outlet channel 220; a first valve body 110 is connected to the second valve body 200, an inlet 111 is connected to the inlet channel 210, and an outlet 112 is connected to the outlet channel 220. It is understood that the inlet channel 210 serves to allow water to enter, and the outlet channel 220 serves to allow water to exit.

[0102] As an example, the inlet channel 210 can be used to supply water to the sanitary system, and the outlet channel 220 can be used to supply water to the heating system.

[0103] With this configuration, the water supply component 100 can supply water from the bathroom system to the heating system, thereby improving system reliability.

[0104] According to the second aspect of the present application, an inlet valve is provided. On the one hand, it eliminates the need to install an independent pressure relief or control component outside the inlet valve, which greatly simplifies the connection structure between the inlet valve and the water circuit of the wall-hung boiler, reduces the number of external pipes and interfaces, and improves the structural compactness.

[0105] On the other hand, there is no need to redesign the overall structure of the inlet valve. Based on the existing flow channel layout of the second valve body 200, the proven reliability of the water replenishment component 100 can be directly adapted, which reduces the research and development and production difficulty of the inlet valve. It also makes it easier to replace the water replenishment component 100 separately during subsequent maintenance without disassembling the entire inlet valve, thus improving maintenance convenience.

[0106] In addition, the integrated structure can effectively save the space occupied by the water inlet valve, perfectly adapt to the small installation environment inside the wall-hung boiler, avoid assembly difficulties caused by scattered parts, and take into account both functional integrity and space adaptability.

[0107] In other embodiments, the first valve body 110 is detachably connected to the second valve body 200.

[0108] In the above solution, when the first valve body 110, which integrates water replenishment and pressure relief functions, experiences faults such as wear of the valve core 120 or failure of the pressure relief part 130, it is not necessary to disassemble or replace the entire inlet valve. Only the first valve body 110 needs to be removed for individual replacement or repair, which greatly reduces maintenance costs and downtime and avoids wasting the entire component due to local faults.

[0109] Meanwhile, if different specifications of water supply components 100 need to be replaced according to water circuit requirements, such as the first valve body 110 with different pressure relief thresholds, only the first valve body 110 needs to be replaced. There is no need to modify the second valve body 200 and the connected pipelines, which enhances the adaptability of the inlet valve to different working conditions and reduces the cost and difficulty of system upgrades.

[0110] As an example, the first valve body 110 and the second valve body 200 can be connected by bolts or snap-fit, and this application does not limit this.

[0111] As an example, the first valve body 110 and the second valve body 200 can be connected by a connector, which can be a clamp, a retaining ring, etc. This application does not limit this. The connector is snapped into the connection between the first valve body 110 and the second valve body 200, thereby realizing the detachable connection between the first valve body 110 and the second valve body 200.

[0112] As an example, the first valve body 110 and the second valve body 200 may each be provided with mating flanges and detachably connected by bolts.

[0113] As an example, the first valve body 110 and the second valve body 200 may each be provided with a snap-fit ​​part, and the two snap-fit ​​parts form a plug-in fit to realize the detachable connection of the first valve body 110 and the second valve body 200.

[0114] Thirdly, embodiments of this application provide a water-using device, including an inlet valve according to any of the embodiments.

[0115] According to the third aspect of the present application, a water-using device reduces the probability of excessive water pressure, improves water circuit safety, and can replenish water when the water pressure is insufficient. In addition, the water replenishment component 100 is easy to replace, which improves the convenience of use.

[0116] As an example, water-using equipment includes electric water heaters, gas water heaters, wall-hung boilers, etc., and this application does not limit this.

[0117] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0118] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0119] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

[0120] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A water supply component for an inlet valve, characterized in that, include: The first valve body (110) has an inlet (111), a water supply channel (113) and an outlet (112). One end of the water supply channel (113) is connected to the inlet (111), and the other end of the water supply channel (113) is connected to the outlet (112). A valve core (120) is disposed in the first valve body (110). The valve core (120) can selectively extend into the water supply channel (113) to connect or disconnect the water inlet (111) and the water outlet (112). A pressure relief section (130) is provided on the first valve body (110) or the valve core (120), and the pressure relief section (130) is configured to selectively connect the water supply channel (113) to the outside.

2. The water replenishment component (100) according to claim 1, characterized in that, Along the first direction (X), the inlet (111) and the outlet (112) are spaced apart. Along the first direction (X), the valve core (120) is movably disposed on the first valve body (110) to extend into or out of the water supply channel (113).

3. The water replenishment component (100) according to claim 2, characterized in that, The water supply channel (113) includes a first water supply channel (113a), a second water supply channel (113b), and a third water supply channel (113c). The inlet (111) is located at the inlet end of the first water supply channel (113a), and the outlet (112) is located at the outlet end of the third water supply channel (113c). The second water supply channel (113b) is used to connect the outlet end of the first water supply channel (113a) and the inlet end of the third water supply channel (113c).

4. The water replenishment component (100) according to claim 1, characterized in that, The pressure relief section (130) includes a pressure relief channel (131) and a sealing seat (132). The pressure relief channel (131) is disposed on the valve core (120) and its two ends are respectively connected to the water supply channel (113) and the outside. The sealing seat (132) is movably disposed on the valve core (120) to connect or block the pressure relief channel (113).

5. The water replenishment component (100) according to claim 4, characterized in that, The pressure relief channel (131) includes a first pressure relief channel (131a) and a second pressure relief channel (131b) connected in sequence. The first pressure relief channel (131a) is connected to the water supply channel (113), and the second pressure relief channel (131b) is connected to the outside. The cross-sectional area of ​​the first pressure relief channel (131a) is smaller than that of the second pressure relief channel (131b) to form a stepped portion (131c). The sealing seat (132) can be selectively abutted against the stepped portion (131c).

6. The water replenishment component (100) according to claim 4, characterized in that, The pressure relief section (130) further includes an elastic element (133) and an adjusting seat (134). The adjusting seat (134) is threaded into the inner wall of the pressure relief channel (131) along the axial direction of the valve core (120). One end of the elastic element (133) is connected to the adjusting seat (134), and the other end of the elastic element (133) is connected to the sealing seat (132).

7. The water replenishment component (100) according to claim 5, characterized in that, The sealing seat (132) includes a seat body (132a) and a sealing gasket (132b). The seat body (132a) has a limiting groove (132aa), and the sealing gasket (132b) is embedded in the limiting groove (132aa). The sealing gasket (132b) is constructed of an elastic material. The stepped portion (131c) is provided with an annular protrusion (131cc) surrounding the first pressure relief channel (131a). The sealing gasket (132b) can selectively abut against the annular protrusion (131cc).

8. A water inlet valve, characterized in that, include: The second valve body (200) has an inlet channel (210) and an outlet channel (220); The water replenishment component (100) according to any one of claims 1 to 7, wherein the first valve body (110) is connected to the second valve body (200), the water inlet (111) is connected to the water inlet channel (210), and the water outlet (112) is connected to the water outlet channel (220).

9. The inlet valve according to claim 8, characterized in that, The first valve body (110) is detachably connected to the second valve body (200).

10. A water-using device, characterized in that, Includes the inlet valve as described in claim 8 or 9.

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