Water outlet valve and wall-hanging stove waterway system

Abstract

The utility model discloses a water outlet valve and a wall-hanging stove waterway system, and belongs to the technical field of household appliances. The water outlet valve comprises a valve body, wherein a three-way valve part, a second valve part and a bypass assembly are arranged on the valve body; the three-way valve part is provided with a hot water inlet, a first fluid outlet and a second fluid outlet, the second valve part is internally provided with a first flow channel directly communicated to the second fluid outlet, the second valve part is provided with a mounting interface communicated with the first flow channel, and the mounting interface is used for mounting a sensing element; the bypass assembly is connected to the second valve part and located between the mounting connector and the three-way valve part, the bypass assembly communicates with the first fluid outlet and intersects with the first flow channel, and the area where the bypass assembly intersects with the second valve part coincides with the position where the mounting connector is arranged on the second valve part. The water outlet valve is high in structural compactness, small in size in the width direction and capable of meeting the miniaturization design requirement of the whole wall-hanging stove water way system.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to a water outlet valve and a water circuit system for a wall-hung boiler. Background Technology

[0002] A wall-hung boiler water system is a type of water heater that uses natural gas as its energy source. It boasts powerful central heating capabilities, meeting the heating needs of multiple rooms and providing domestic hot water for bathing, kitchens, and other areas. The outlet valve is an essential component of the wall-hung boiler water system. Its main function is to control the opening and closing of the inlet and outlet, the diversion of water flow, and the direction and flow rate of the water, thereby ensuring the even distribution of hot water within the pipes and the proper heating of the radiators.

[0003] The water system of a wall-hung boiler in related technologies typically includes a combustion chamber, a heat exchange structure, an inlet valve, and an outlet valve. The combustion chamber is usually installed on the indoor wall. The inlet valve supplies water to the combustion chamber. The heat exchange structure includes a heat exchange channel and a water supply channel that work together for heat exchange. The outlet valve includes a valve body and a switching device. The valve body is equipped with a hot water inlet, a heating water outlet, a bathroom water outlet, a heat exchange inlet, and a heat exchange outlet. The hot water inlet is connected to the outlet of the combustion chamber. The heat exchange inlet is connected to the inlet of the heat exchange channel. The heat exchange outlet is connected to the outlet of the water supply channel. The bathroom water outlet is connected to the heat exchange outlet. After heat exchange between the water in the water supply channel and the water in the heat exchange channel, the water flows to the bathroom water outlet through the heat exchange outlet to provide hot water for the user. The hot water inlet is switched by the switching device to selectively connect to either the heating water outlet or the heat exchange inlet. In addition, a bypass valve section is connected to the valve body. A bypass valve is installed in the bypass valve section. The bypass valve is used to replenish water to the heat exchange structure to prevent the heat exchange structure from being damaged due to dry burning due to lack of water. The bypass valve can also be used to relieve pressure by circulating the fluid inside the wall-hung boiler.

[0004] However, the above-mentioned outlet valves usually have the following problems when in use: the bypass valve is often connected to one side of the valve body in the width direction, which makes the entire outlet valve larger in the width direction, and cannot meet the market demand for miniaturization of the wall-hung boiler water circuit system.

[0005] Therefore, there is an urgent need for a water outlet valve and a wall-hung boiler water system to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the purpose of this invention is to provide a water outlet valve and a wall-hung boiler water circuit system that can significantly reduce the width dimension of the valve body, improve the structural compactness of the water outlet valve, and thus meet the miniaturization design requirements of the wall-hung boiler water circuit system.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A water outlet valve includes a valve body, wherein a three-way valve section, a second valve section, and a bypass assembly are provided on the valve body;

[0009] The three-way valve is provided with a hot water inlet and a first fluid outlet and a second fluid outlet that are selectively connected to the hot water inlet.

[0010] The second valve section is provided with a first flow channel that is directly connected to the second fluid outlet. The second valve section is provided with a mounting interface that is connected to the first flow channel. The mounting interface is used to install a sensing element.

[0011] The bypass component is connected to the second valve section and is located between the mounting interface and the three-way valve section. The bypass component is connected to the first fluid outlet and intersects with the first flow channel. The area where the bypass component and the second valve section intersect overlaps with the location of the mounting interface on the second valve section.

[0012] As a preferred embodiment of the outlet valve provided by this utility model, a heat exchange inlet is formed at the outlet of the first flow channel for connecting the heat exchange structure, and the area where the bypass component and the second valve part intersect has a portion that overlaps with the position of the heat exchange inlet on the second valve part.

[0013] As a preferred embodiment of the outlet valve provided by this utility model, the bypass assembly includes a bypass structure and a one-way valve assembly. The bypass structure is integrally formed on the valve body. The bypass structure is provided with a bypass channel and a bypass cavity that are directly connected. One end of the bypass channel away from the bypass cavity is connected to the first fluid outlet. The bypass cavity is connected to the first flow channel. The one-way valve assembly is provided in the bypass cavity.

[0014] As a preferred embodiment of the water outlet valve provided by this utility model, the inner diameter of the bypass cavity is larger than the inner diameter of the bypass channel, so as to form a sealing surface between the bypass channel and the bypass cavity. The one-way valve assembly includes a one-way valve core and an elastic element, and the one-way valve core can press against the sealing surface under the action of the elastic element.

[0015] As a preferred embodiment of the outlet valve provided by this utility model, the one-way valve assembly further includes a first sealing element, which is disposed on the side of the one-way valve core facing the sealing surface.

[0016] As a preferred embodiment of the water outlet valve provided by this utility model, the bypass structure is provided with a bypass port connected to the bypass cavity at one end away from the first fluid outlet. A bypass plug is detachably sealed at the bypass port, and the two ends of the elastic member are respectively pressed against the one-way valve core and the bypass plug.

[0017] As a preferred embodiment of the outlet valve provided by this utility model, the distance between the top of the one-way valve core and the bypass port is 3mm to 10mm.

[0018] As a preferred embodiment of the water outlet valve provided by this utility model, the sealing surface is located below the first flow channel along the height direction of the valve body.

[0019] As a preferred embodiment of the outlet valve provided by this utility model, the bypass component is located on the front side of the valve body.

[0020] This utility model also provides a water circuit system for a wall-hung boiler, including a combustion chamber and a water outlet valve as described above, wherein the hot water inlet of the water outlet valve is connected to the combustion chamber.

[0021] The beneficial effects of this utility model are as follows:

[0022] The water outlet valve provided by this utility model can make full use of the space between the installation interface and the three-way valve by setting the bypass component between the installation interface and the three-way valve, thereby greatly reducing the size of the valve body in the width direction. By setting the area where the bypass component intersects with the second valve and the setting position of the installation interface on the second valve, the size of the valve body in the width direction can be further reduced, improving the structural compactness of the water outlet valve, meeting the miniaturization design requirements of the entire wall-hung boiler water circuit system, and improving the user experience.

[0023] The wall-hung boiler water system provided by this utility model can greatly reduce the size of the valve body in the width direction by applying the above-mentioned outlet valve, thereby meeting the miniaturization design requirements of the wall-hung boiler water system. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0025] Figure 1 This is a water circuit structure diagram of the wall-hung boiler water circuit system provided in this embodiment of the utility model;

[0026] Figure 2 This is a schematic diagram of the first structure of the water outlet valve provided in this embodiment of the utility model;

[0027] Figure 3 This is a schematic diagram of the second structure of the water outlet valve provided in this embodiment of the utility model;

[0028] Figure 4 This is a schematic diagram of the third structure of the water outlet valve provided in this embodiment of the utility model;

[0029] Figure 5 yes Figure 4 Sectional view at AA;

[0030] Figure 6 yes Figure 5 A magnified view of a section at point B.

[0031] Figure label:

[0032] 100. Water outlet valve;

[0033] 1. Valve body; 11. Three-way valve section; 110. Three-way valve chamber; 1101. Main valve chamber; 1102. First chamber; 1103. Second chamber; 111. Hot water inlet; 112. First fluid outlet; 113. Second fluid outlet; 12. Second valve section; 121. First flow channel; 1210. Heat exchange inlet; 1211. First branch channel; 1212. Second branch channel; 122. Second flow channel; 123. Bathroom passage; 124. Installation interface; 13. Bypass structure; 1301. Bypass channel; 1302. Bypass chamber; 1303. Sealing surface; 1304. Annular protrusion; 131. Bypass port; 132. Bypass plug; 1321. Sealing part; 1322. Second positioning post; 133. Second sealing element;

[0034] 2. One-way valve assembly; 21. Valve core; 211. Sealing part; 212. First positioning pin; 22. Elastic element; 23. First sealing element;

[0035] 3. Switching mechanism;

[0036] 200. Combustion chamber; 201. Hot water outlet;

[0037] 300. Heat exchange structure; 310. Heat exchange channel; 320. Water supply channel;

[0038] 400. Inlet valve; 401. Third flow channel; 402. Fourth flow channel;

[0039] 500. Heating system. Detailed Implementation

[0040] Before explaining any embodiment of the present invention in detail, it should be understood that the present invention is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0041] In this invention, the terms "comprising," "including," "having," or any other variations thereof are intended to cover a 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 that element.

[0042] In this invention, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "and / or" relationship.

[0043] In this invention, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0044] In this invention, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0045] In this invention, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can be performed by one part, one component, or a combination of multiple parts.

[0046] In this utility model, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this utility model. Furthermore, in the context, it should be understood that when one element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent the direct orientation but can also be understood as the lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0047] Figure 1 The diagram shows the water circuit structure of the wall-hung boiler water circuit system provided in this embodiment. Figure 2 A first structural schematic diagram of the water outlet valve 100 provided in this embodiment is shown. (See attached diagram.) Figures 1-2 As shown, this embodiment provides a wall-hung boiler water system, which includes a combustion chamber 200, a heat exchange structure 300, an inlet valve 400, and an outlet valve 100. The combustion chamber 200 can heat the water inside; the heat exchange structure 300 includes a heat exchange channel 310 and a water supply channel 320 that cooperate in heat exchange; the inlet valve 400 can supply water to the combustion chamber 200 and the water supply channel 320; the outlet valve 100 includes a valve body 1, which has a hot water inlet 111, a first flow channel 121, and a second flow channel 12. 2. Heating passage and bathroom passage 123; hot water inlet 111 is connected to hot water outlet 201 of combustion chamber 200, and hot water inlet 111 can selectively connect to heating passage or first flow channel 121; first flow channel 121 is connected to inlet of heat exchange passage 310, outlet of heat exchange passage 310 is connected to fourth flow channel 402 of inlet valve 400, inlet of water supply passage 320 is connected to third flow channel 401 of inlet valve 400, and outlet of water supply passage 320 is connected to second flow channel 122.

[0048] In use, when the hot water inlet 111 is connected to the heating channel, the hot water heated by the combustion chamber 200 flows sequentially through the hot water outlet 201, the hot water inlet 111, and the heating channel into the heating system 500 to provide heating for users. The water in the heating system 500, after heat exchange with the outside environment, can flow back to the combustion chamber 200 through the inlet valve 400 for reheating, thus forming a heating water circulation loop. When the hot water inlet 111 is connected to the first flow channel 121, the hot water heated by the combustion chamber 200 flows sequentially through the hot water outlet... 201. Hot water flows from the inlet 111 and the first flow channel 121 into the heat exchange channel 310 of the heat exchange structure 300. After exchanging heat with the water in the supply channel 320, it flows through the inlet valve 400 into the combustion chamber 200 to be reheated, thus forming a heat exchange circulation loop. Water from an external water source can flow into the supply channel 320 of the heat exchange structure 300 through the inlet valve 400. After exchanging heat with the water in the heat exchange channel 310, it flows through the second flow channel 122 and the bathroom channel 123 to the bathroom system to provide domestic water for users.

[0049] It should be explained that the heating system 500 specifically refers to terminal heat dissipation components such as radiators, underfloor heating pipes, or fan coil units. Water heated in the combustion chamber 200 can be pumped to these terminal heat dissipation components through the outlet valve 100, dissipating heat into the indoor air to raise the indoor ambient temperature and meet the user's heating needs. The bathroom system specifically refers to water-using devices for users to shower, wash, and perform other operations. Therefore, both the heating system 500 and the bathroom system are relatively mature technologies in this field, and the specific structures of the heating system 500 and the bathroom system will not be described in detail in this embodiment.

[0050] It should also be noted that the combustion chamber 200, heat exchange structure 300 and water inlet valve 400 are all relatively mature technologies in the field. The specific structure of the combustion chamber 200, heat exchange structure 300 and water inlet valve 400 will not be described in detail in this embodiment.

[0051] Figure 3 A second structural schematic diagram of the outlet valve 100 provided in this embodiment is shown. (See attached diagram.) Figure 3 and combined Figure 2As shown, this embodiment also provides a water outlet valve 100, on which a three-way valve section 11 and a second valve section 12 are provided on the valve body 1; a hot water inlet 111 is provided on the three-way valve section 11, and the three-way valve section 11 is also provided with a first fluid outlet 112 and a second fluid outlet 113 selectively connected to the hot water inlet 111; a first flow channel 121 is provided on the second valve section 12. In this embodiment, the first fluid outlet 112 is connected to the heating channel, and the second fluid outlet 113 is connected to the first flow channel 121. That is, when the hot water inlet 111 is connected to the first fluid outlet 112, the hot water in the combustion chamber 200 can flow through the first fluid outlet 112 to the heating channel to provide heating for the user; when the hot water inlet 111 is connected to the second fluid outlet 113, the hot water in the combustion chamber 200 can flow through the second fluid outlet 113 to the first flow channel 121 to provide domestic hot water for the user or flow to the heat exchange structure 300 for heat exchange.

[0052] It should be noted that, for example Figure 2 and Figure 3 As shown, the height direction of the outlet valve 100 after actual installation is defined as the up-down direction. Specifically, the side of the outlet valve 100 closest to the combustion chamber 200 is defined as up, the side of the outlet valve 100 away from the combustion chamber 200 is defined as down, the side of the outlet valve 100 closest to the heat exchange structure 300 is defined as rear, and the side of the outlet valve 100 away from the heat exchange structure 300 is defined as front. When the user stands facing the outlet valve 100, the side of the outlet valve 100 facing the user's right hand is defined as right, and the side of the outlet valve 100 facing the user's left hand is defined as left. In this embodiment, the height direction of the outlet valve 100 refers to the up-down direction, the width direction of the outlet valve 100 refers to the left-right direction, and the thickness direction of the outlet valve 100 refers to the front-back direction. That is, in this embodiment, the three-way valve part 11 extends in the up-down direction, and the second valve part 12 is connected to the right side of the three-way valve part 11.

[0053] Figure 4 A third structural schematic diagram of the water outlet valve 100 provided in this embodiment is shown. Figure 5 It shows Figure 4 Sectional view at AA. (See example) Figures 4-5 and combined Figure 2As shown, the three-way valve section 11 also has a three-way valve chamber 110. The three-way valve chamber 110 includes a first chamber 1102, a main valve chamber 1101, and a second chamber 1103 connected sequentially along its axial direction. The main valve chamber 1101 is connected to the hot water inlet 111, and the main valve chamber 1101 can selectively connect to the first chamber 1102 or the second chamber 1103. The heating channel is connected to the first chamber 1102, that is, the first fluid outlet 112 is the outlet of the first chamber 1102. The first flow channel 121 is connected to the second chamber 1103, that is, the second fluid outlet 113 is the outlet of the second chamber 1103. When the main valve chamber 1101 is connected to the first chamber 1102, the hot water in the combustion chamber 200 can circulate in the heating water circulation loop; when the main valve chamber 1101 is connected to the second chamber 1103, the hot water in the combustion chamber 200 can circulate in the heat exchange circulation loop.

[0054] Optionally, the outlet valve 100 further includes a switching mechanism 3, which is movably disposed in the three-way valve chamber 110 to selectively connect the three-way valve chamber 110 to the heating channel or the first flow channel 121. That is, through the movement of the switching mechanism 3 in the three-way valve chamber 110, the passage between the main valve chamber 1101 and the first chamber 1102, or the passage between the main valve chamber 1101 and the second chamber 1103, can be selectively opened, thereby achieving three-way switching. The specific structure and working principle of the switching mechanism 3 will not be elaborated in this embodiment. Switching mechanisms applicable to the outlet valve 100 in related technologies to achieve three-way switching in the three-way valve chamber are all within the protection scope of this embodiment.

[0055] Furthermore, the outlet valve 100 also includes a drive mechanism (not shown in the figure), the output end of which is connected to the switching mechanism 3 to drive the switching mechanism 3 to move within the three-way valve chamber 110. In this embodiment, the drive mechanism may be a synchronous motor, a stepper motor, a servo motor, or other drive devices.

[0056] like Figure 2 , Figure 3 and Figure 5As shown, a bypass assembly is also provided on the valve body 1. The bypass assembly includes a bypass structure 13 and a one-way valve assembly 2. The bypass structure 13 is integrally formed on the valve body 1 and located on the side of the three-way valve part 11. The bypass structure 13 is provided with a bypass channel 1301 and a bypass cavity 1302 that are directly connected. One end of the bypass channel 1301 away from the bypass cavity 1302 is connected to the first fluid outlet 112. The bypass cavity 1302 is connected to the first flow channel 121. The one-way valve assembly 2 is provided in the bypass cavity 1302. By setting the bypass structure 13 on the side of the three-way valve section 11, and having the bypass cavity 1302 of the bypass structure 13 intersect and connect with the first flow channel 121, the bypass structure 13 can be set between the three-way valve section 11 and the second valve section 12, so as to make full use of the space between the three-way valve section 11 and the second valve section 12, thereby greatly reducing the size of the outlet valve 100 in the width direction, thus meeting the miniaturization design requirements of the entire wall-hung boiler water circuit system.

[0057] It should be noted that when the hot water inlet 111 is connected to the first fluid outlet 112, the water in the first fluid outlet 112 can flow sequentially through the bypass channel 1301 and the bypass cavity 1302 to the first flow channel 121 to replenish water to the heat exchange structure 300, thereby preventing the heat exchange structure 300 from being damaged due to dry burning due to lack of water. At the same time, it can also achieve the purpose of depressurization by circulating the fluid inside the wall-hung boiler.

[0058] Figure 6 It shows Figure 5 A magnified view of point B. (See image below.) Figure 6 and combined Figure 5As shown, the inner diameter of the bypass cavity 1302 is larger than the inner diameter of the bypass channel 1301, so as to form a sealing surface 1303 between the bypass channel 1301 and the bypass cavity 1302. The one-way valve assembly 2 includes a one-way valve core 21 and an elastic element 22. The one-way valve core 21 can press tightly against the sealing surface 1303 under the action of the elastic element 22. By forming a sealing surface 1303 in the bypass structure 13, the setting of the sealing seat in the one-way valve assembly in the prior art can be omitted, thereby eliminating the restriction that the inner diameter of the bypass cavity 1302 must be greater than or equal to the outer diameter of the sealing seat. In order to minimize the inner diameter of the bypass channel 1301 and the bypass cavity 1302 while ensuring the liquid flow rate in the bypass channel 1301 and the bypass cavity 1302, the size of the valve body 1 in the width direction is further reduced. When in use, when the pressure at the first fluid outlet 112 is high, the one-way valve core 21 can overcome the elastic force of the elastic element 22 and move away from the sealing surface 1303. At this time, the water at the first fluid outlet 112 can flow into the first flow channel 121 through the bypass channel 1301 and the bypass cavity 1302 in sequence, so as to relieve pressure and replenish water to the heat exchange structure 300. After the pressure relief operation is completed, the one-way valve core 21 can also be reset under the action of the elastic restoring force of the elastic element 22 to press against the sealing surface 1303, so as to prevent the water in the first flow channel 121 from flowing back into the heating channel.

[0059] Alternatively, the elastic element 22 can be a compression spring, which is easy to install and has a lower cost.

[0060] Optionally, the one-way valve assembly 2 further includes a first seal 23, which is disposed on the side of the one-way valve core 21 facing the sealing surface 1303. By providing the first seal 23, the sealing effect of the one-way valve core 21 on the sealing surface 1303 when it is in the sealed position can be further improved. The first seal 23 is a rubber gasket, which is readily available, low in cost, and provides a good sealing effect.

[0061] like Figure 6 As shown, an annular protrusion 1304 is provided on the sealing surface 1303, and the annular protrusion 1304 is sealed and fitted with the one-way valve core 21. Specifically, the annular protrusion 1304 and the one-way valve core 21 are sealed and fitted together by the first sealing element 23. The setting of the annular protrusion 1304 can reduce the contact area between the sealing surface 1303 and the first sealing element 23, thereby increasing the clamping force between the two, so as to further ensure the sealing effect between the one-way valve core 21 and the sealing surface 1303.

[0062] To facilitate the disassembly and maintenance of the one-way valve assembly 2, the bypass structure 13, at the end opposite to the first fluid outlet 112, is also provided with a bypass port 131 communicating with the bypass cavity 1302. A bypass plug 132 is detachably sealed at the bypass port 131, and the two ends of the elastic member 22 are respectively pressed against the one-way valve core 21 and the bypass plug 132. When maintenance is required, the operator only needs to remove the bypass plug 132 from the bypass port 131, which is convenient and easy. To ensure the sealing performance of the bypass plug 132 sealing the bypass port 131, a second sealing element 133 is provided between the bypass plug 132 and the bypass port 131 to prevent fluid in the bypass channel 1301 or the first flow channel 121 from leaking from the bypass port 131. In this embodiment, the second sealing element 133 is a rubber sealing ring, which has good sealing effect, is easy to install, and has low cost.

[0063] Optionally, the distance L1 between the top of the one-way valve core 21 and the bypass port 131 is 3mm to 10mm. When maintenance is required, the operator can easily remove the one-way valve core 21 from the bypass channel 1301 after removing the bypass plug 132. For example, L1 can be 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, etc. Of course, the specific value of L1 is not limited to the above range, and the designer can adjust the specific value of L1 according to the actual usage requirements.

[0064] like Figure 2 As shown, the bypass structure 13 is located on the front side of the valve body 1. This arrangement allows operators to inspect and maintain the valve body 1 from the front without having to remove the entire outlet valve 100, further improving the convenience of operation.

[0065] like Figure 5 and Figure 6 As shown, the one-way valve core 21 includes a sealing part 211 and a first positioning post 212 connected together. The sealing part 211 can seal and fit against the sealing surface 1303. One end of the elastic element 22 is sleeved on the first positioning post 212 and abuts against the sealing part 211. The bypass plug 132 includes a blocking part 1321 and a second positioning post 1322 connected together. The blocking part 1321 seals and blocks the bypass port 131. The other end of the elastic element 22 is sleeved on the second positioning post 1322 and abuts against the blocking part 1321. By setting the first positioning post 212 and the second positioning post 1322, the elastic element 22 can be guided and limited, thereby preventing the elastic element 22 from tilting and causing a change in the direction of the elastic force. This ensures that the elastic element 22 applies a more stable force to the one-way valve core 21, ensuring that the one-way valve core 21 can be tightly pressed against the sealing surface 1303 when it is in the sealed position.

[0066] Optionally, along the height direction of the valve body 1, the sealing surface 1303 is located below the first flow channel 121. This arrangement can prevent the force applied to the one-way valve core 21 when the liquid in the second chamber 1103 flows to the first flow channel 121 from causing the one-way valve core 21 to move away from the sealing surface 1303, thereby opening the passage between the first fluid outlet 112 and the first flow channel 121 and affecting the normal operation of the one-way valve assembly 2.

[0067] like Figure 2 As shown, the outlet valve 100 also includes a sensing element (not shown in the figure), and the second valve part 12 is also provided with an installation interface 124, on which the sensing element is installed. The sensing element can be a pressure sensor to monitor the water pressure in the first flow channel 121 in real time, and to promptly remind the user to perform maintenance when the water pressure in the first flow channel 121 is abnormal; the sensing element can also be a temperature sensor to detect the water temperature in the first flow channel 121, and to promptly adjust parameters such as the power of the combustion chamber 200 when the water temperature in the first flow channel 121 exceeds a preset temperature range.

[0068] Optionally, such as Figures 2-4 As shown, the area where the bypass structure 13 intersects with the second valve section 12 overlaps with the location of the mounting interface 124 on the second valve section 12. This design improves the structural compactness of the outlet valve 100 and further reduces the size of the valve body 1 in the width direction.

[0069] Furthermore, a heat exchange inlet 1210 is formed at the outlet of the first flow channel 121. The heat exchange inlet 1210 is used to connect the heat exchange structure 300. The area where the bypass structure 13 intersects with the second valve section 12 overlaps with the location of the heat exchange inlet 1210 on the second valve section 12. This arrangement can further reduce the size of the valve body 1 in the width direction, improve the structural compactness of the outlet valve 100, meet the miniaturization design requirements of the entire wall-hung boiler water circuit system, and enhance the user experience.

[0070] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that the above embodiments do not limit this utility model in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A water outlet valve, characterized in that, It includes a valve body (1), on which a three-way valve section (11), a second valve section (12) and a bypass assembly are provided; The three-way valve section (11) is provided with a hot water inlet (111) and a first fluid outlet (112) and a second fluid outlet (113) selectively connected to the hot water inlet (111); The second valve section (12) is provided with a first flow channel (121) that is directly connected to the second fluid outlet (113). The second valve section (12) is provided with an installation interface (124) that is connected to the first flow channel (121). The installation interface (124) is used to install a sensing element. The bypass assembly is connected to the second valve section (12) and is located between the mounting interface (124) and the three-way valve section (11). The bypass assembly is connected to the first fluid outlet (112) and intersects with the first flow channel (121). The area where the bypass assembly and the second valve section (12) intersect overlaps with the location of the mounting interface (124) on the second valve section (12).

2. The outlet valve according to claim 1, characterized in that, A heat exchange inlet (1210) for connecting the heat exchange structure (300) is formed at the outlet of the first flow channel (121). The area where the bypass component and the second valve section (12) intersect has a portion that overlaps with the position of the heat exchange inlet (1210) on the second valve section (12).

3. The outlet valve according to claim 1, characterized in that, The bypass assembly includes a bypass structure (13) and a one-way valve assembly (2). The bypass structure (13) is integrally formed on the valve body (1). The bypass structure (13) is provided with a bypass channel (1301) and a bypass cavity (1302) that are directly connected. One end of the bypass channel (1301) away from the bypass cavity (1302) is connected to the first fluid outlet (112). The bypass cavity (1302) is connected to the first flow channel (121). The one-way valve assembly (2) is provided in the bypass cavity (1302).

4. The outlet valve according to claim 3, characterized in that, The inner diameter of the bypass cavity (1302) is larger than the inner diameter of the bypass channel (1301) to form a sealing surface (1303) between the bypass channel (1301) and the bypass cavity (1302). The one-way valve assembly (2) includes a one-way valve core (21) and an elastic element (22). The one-way valve core (21) can press against the sealing surface (1303) under the action of the elastic element (22).

5. The outlet valve according to claim 4, characterized in that, The one-way valve assembly (2) further includes a first seal (23), which is disposed on the side of the one-way valve core (21) facing the sealing surface (1303).

6. The outlet valve according to claim 4, characterized in that, The bypass structure (13) is provided with a bypass port (131) connected to the bypass cavity (1302) at one end away from the first fluid outlet (112). A bypass plug (132) is detachably sealed at the bypass port (131). The two ends of the elastic member (22) are respectively pressed against the one-way valve core (21) and the bypass plug (132).

7. The outlet valve according to claim 6, characterized in that, The distance between the top of the one-way valve core (21) and the bypass port (131) is 3mm to 10mm.

8. The outlet valve according to claim 4, characterized in that, Along the height direction of the valve body (1), the sealing surface (1303) is located below the first flow channel (121).

9. The outlet valve according to any one of claims 1 to 8, characterized in that, The bypass assembly is located on the front side of the valve body (1).

10. A water system for a wall-hung boiler, characterized in that, It includes a combustion chamber (200) and a water outlet valve as described in any one of claims 1 to 9, wherein the hot water inlet (111) of the water outlet valve is connected to the combustion chamber (200).

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