Bypass structure and water outlet valve

Abstract

The utility model discloses a bypass structure and a water outlet valve, and belongs to the technical field of household appliances. The bypass structure is used in the water outlet valve of the wall-hanging stove waterway system, a three-way valve part and a first flow channel are arranged on a valve body of the water outlet valve, a three-way valve cavity and a heating channel are arranged in the three-way valve part, the three-way valve cavity selectively communicates with the heating channel and the first flow channel, and the bypass structure is integrally formed on the valve body and located beside the three-way valve part. A bypass channel and a bypass cavity which directly communicate with each other are arranged in the bypass structure, the end, away from the bypass cavity, of the bypass channel communicates with the heating channel, the bypass cavity communicates with the first flow channel in an intersecting mode, and a one-way valve assembly is arranged in the bypass cavity. The bypass structure is small in size, the size of the water outlet valve with the bypass structure in the width direction can be greatly reduced, and therefore the miniaturization design requirement of a wall-hanging stove water way system is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to domestic appliance technical field, concretely relates to a bypass structure and water outlet valve. BACKGROUND

[0002] The wall-hanging stove water system is a water heater taking natural gas as energy, which has powerful home central heating function, can satisfy the heating demand of multi-room, and can provide domestic water for household bathing, kitchen and other places. The water outlet valve is an indispensable structure in the wall-hanging stove water system, which mainly controls the opening and closing of the water inlet and outlet, shunts, and controls the direction and flow of water flow, so as to ensure the uniform delivery of hot water in the pipeline and the normal heating of the radiator.

[0003] The water outlet valve in the related art usually comprises a three-way valve part, a heat exchange valve part and a bypass valve part, the three-way valve part has a three-way valve cavity and a heating passage, the heat exchange valve part has a first inlet channel and a first outlet channel, the first inlet channel and the first outlet channel are used for connecting the heat exchange structure of the wall-hanging stove water system, the bypass valve part is connected to the side of the three-way valve part away from the heat exchange valve part, and has a bypass passage in it, the heating passage and the first inlet channel can be connected through the bypass passage to supply water to the heat exchange structure, so as to avoid damage of the heat exchange structure due to lack of water dry burning. However, the bypass valve part of the above water outlet valve will often exceed the heat exchange structure in the left-right direction of the heat exchange structure after installation, resulting in that the size of the entire water outlet valve in the width direction is large, which cannot meet the miniaturization demand of the wall-hanging stove water system in the market.

[0004] Therefore, there is an urgent need for a bypass structure and water outlet valve to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving or at least alleviating part or all of the above problems. To this end, the utility model aims at providing a bypass structure and water outlet valve, which can greatly reduce the size of the water outlet valve in the width direction, so as to meet the miniaturization design demand of the wall-hanging stove water system.

[0006] In order to achieve the above target, the utility model adopts the following technical scheme:

[0007] A bypass structure for a wall-hanging stove water system, characterized in that the bypass structure is integrally formed on the valve body and located at the side of the three-way valve part, the bypass structure is provided with a bypass channel and a bypass cavity which are directly communicated, one end of the bypass channel away from the bypass cavity is communicated to the heating channel, the bypass cavity is communicated to the first flow channel, and the bypass cavity is provided with a one-way valve assembly.

[0008] As a preferred scheme of the bypass structure, the inner diameter of the bypass cavity is greater 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 comprises a one-way valve core and an elastic member, and the one-way valve core can abut against the sealing surface under the action of the elastic member.

[0009] As a preferred scheme of the bypass structure, along the height direction of the valve body, the sealing surface is located below the first flow channel.

[0010] As a preferred scheme of the bypass structure, the bypass structure is further provided with a bypass opening which is communicated with the bypass cavity at one end away from the heating channel, the bypass opening is detachably sealed and blocked by a bypass plug, and the two ends of the elastic member are respectively abutted against the one-way valve core and the bypass plug.

[0011] As a preferred scheme of the bypass structure, the distance between the top of the one-way valve core and the bypass opening is 3mm-10mm.

[0012] As a preferred scheme of the bypass structure, the one-way valve core comprises a sealing part and a first positioning column which are connected, the sealing part can be sealingly attached to the sealing surface, one end of the elastic member is sleeved on the first positioning column and abutted against the sealing part, and / or

[0013] the bypass plug comprises a blocking part and a second positioning column which are connected, the blocking part is sealingly blocked in the bypass opening, and the other end of the elastic member is sleeved on the second positioning column and abutted against the blocking part.

[0014] As a preferred scheme of the bypass structure, the sealing surface is provided with an annular protrusion, and the annular protrusion is sealingly matched with the one-way valve core.

[0015] As a preferred scheme of the bypass structure provided by the utility model, the one-way valve assembly further comprises a first sealing member, and the first sealing member is arranged on one side of the one-way valve core facing the sealing surface.

[0016] As a preferred scheme of the bypass structure provided by the utility model, the bypass structure is located on the front side of the valve body.

[0017] The utility model further provides a water outlet valve, including valve body and bypass structure as described above, three way valve department and first flow channel are provided with on the valve body, three way valve chamber and heating passage have in the three way valve department, the three way valve chamber can selectivity connect the heating passage with the first flow channel, the bypass structure is integrally formed on the valve body and is located at the side of the three way valve department.

[0018] The utility model has the advantages of:

[0019] The bypass structure provided by the utility model is arranged on the side of the three way valve department, the bypass cavity of the bypass structure is connected with the first flow channel, the bypass structure can be arranged between the three way valve department and the second valve department, the space between the three way valve department and the second valve department can be fully utilized, the size of the water outlet valve in the width direction is greatly reduced, the miniaturization design requirement of the whole wall-mounted stove water system is met, the sealing seat of the one-way valve can be omitted compared with the bypass valve in the prior art, the limitation that the inner diameter of the bypass cavity needs to be greater than or equal to the outer diameter of the sealing seat is cancelled, the inner diameter of the bypass passage and the bypass cavity is minimized under the condition of ensuring the liquid flow in the bypass passage and the bypass cavity, and the size of the valve body in the width direction is further reduced.

[0020] The water outlet valve provided by the utility model can improve the compactness of the structure of the water outlet valve and reduce the size in the width direction by using the bypass structure. The wall-mounted stove water system provided by the utility model can greatly reduce the size of the valve body of the water outlet valve in the width direction by using the water outlet valve, and meet the miniaturization design requirement of the wall-mounted stove water system. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the description of the embodiments of the utility model will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the contents of the embodiments of the utility model and these drawings without paying the creative labor for the person skilled in the art.

[0022] Figure 1 It is the waterway structure diagram of the wall-mounted stove water system provided by the embodiment one of the utility model.

[0023] Figure 2 is a first structure schematic view of the water outlet valve provided by the embodiment one of the utility model;

[0024] Figure 3 is a second structure schematic view of the water outlet valve provided by the embodiment one of the utility model;

[0025] Figure 4 is a third structure schematic view of the water outlet valve provided by the embodiment one of the utility model;

[0026] Figure 5 is Figure 4 sectional view at A-A;

[0027] Figure 6 is Figure 5 enlarged view of B;

[0028] Figure 7 is a first structure schematic view of the valve body of the water outlet valve provided by the embodiment two of the utility model;

[0029] Figure 8 is a second structure schematic view of the valve body of the water outlet valve provided by the embodiment two of the utility model;

[0030] Figure 9 is a sectional view of the valve body of the water outlet valve provided by the embodiment two of the utility model;

[0031] Figure 10 is a structure schematic view of the valve body of the water outlet valve provided by the embodiment three of the utility model;

[0032] Figure 11 is a sectional view of the valve body of the water outlet valve provided by the embodiment three of the utility model.

[0033] Reference signs:

[0034] 100, water outlet valve;

[0035] 1, valve body; 11, three-way valve part; 110, three-way valve cavity; 1101, main valve cavity; 1102, first cavity; 1103, second cavity; 111, hot water inlet; 112, heating passage; 12, second valve part; 121, first flow channel; 1210, heat exchange inlet interface; 1211, first branch flow channel; 1212, second branch flow channel; 122, second flow channel; 123, bathroom passage; 124, mounting interface; 13, bypass structure; 1301, bypass passage; 1302, bypass cavity; 1303, sealing surface; 1304, annular protrusion; 131, bypass port; 132, bypass plug; 1321, plugging part; 1322, second positioning column; 133, second sealing element;

[0036] 2. One-way valve assembly; 21. Valve core; 211. Sealing part; 212. First positioning column; 22. Elastic member; 23. First sealing member;

[0037] 3. Switching mechanism;

[0038] 200. Combustion chamber; 201. Hot water outlet;

[0039] 300. Heat exchange structure; 310. Heat exchange channel; 320. Water supply channel;

[0040] 400. Water inlet valve; 401. Third flow channel; 402. Fourth flow channel;

[0041] 500. Heating system. DETAILED DESCRIPTION

[0042] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above-described accompanying drawings.

[0043] In the present application, the terms "comprise", "contain", "have" or any other variant thereof are intended to cover non-exclusive inclusions, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of another identical element in the process, method, article or device comprising the element.

[0044] In the present application, the term "and / or" is a description of the association relationship between the associated objects, which means that there can be three kinds of relationships. For example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents a "and / or" relationship between the front and rear associated objects.

[0045] In the present application, the terms "connection", "combination", "coupling" and "installation" can be direct connection, combination, coupling or installation, or indirect connection, combination, coupling or installation. Among them, the direct connection means that two parts or components are connected together without setting intermediate parts, and the indirect connection means that two parts or components are connected with at least one intermediate part, and the two parts or components are connected through the intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0046] In the present utility model, the ordinary skilled in the art will understand that the relative terms (for example, "about", "approximately", "substantially" and the like) used in connection with a quantity or a condition are to include the stated value and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with a measurement of a particular value, the tolerance in making, assembling, using the particular value, and the like. Such terms are also to be construed to disclose a range defined by the absolute values of the two endpoints. The relative terms can refer to an addition or subtraction of a certain percentage (for example, 1%, 5%, 10% or more) of the indicated value. The numerical values not using the relative terms should also be disclosed as the particular values with the tolerance. In addition, "substantially" when expressing the relative angular positional relationship (for example, substantially parallel, substantially perpendicular), can refer to an addition or subtraction of a certain degree (for example, 1 degree, 5 degrees, 10 degrees or more) based on the indicated angle.

[0047] In the present utility model, the ordinary skilled in the art will understand that the functions performed by the components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by the parts can also be performed by one part, one component, or multiple parts in combination.

[0048] In the present utility model, the terms "upper", "lower", "left", "right", "front", "back" and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as limiting the embodiments of the present utility model. In addition, it is also understood in the context that when referring to one element connected to another element "on" or "under", it can not only be directly connected to another element "on" or "under", but also indirectly connected to another element "on" or "under" through an intermediate element. It should also be understood that the orientation terms such as upper side, lower side, left side, right side, front side and back side represent not only the positive orientation, but also the lateral orientation. For example, the lower side can include the positive lower side, the left lower side, the right lower side, the front lower side and the back lower side, etc.

[0049] Embodiment One

[0050] Figure 1 The waterway structure diagram of the wall-hanging stove waterway system provided by the present embodiment is shown. Figure 2 The first structure schematic diagram of the water outlet valve 100 provided by the present embodiment is shown. As shown in the figure, Figures 1-2As shown, the embodiment provides a water outlet valve 100 applied to a wall-hanging stove water system. The wall-hanging stove water system comprises a combustion chamber 200, a heat exchange structure 300, a water inlet valve 400 and the water outlet valve 100. The combustion chamber 200 can heat water therein. The heat exchange structure 300 comprises a heat exchange passage 310 and a water supply passage 320 in heat exchange cooperation. The water inlet valve 400 can supply water for the combustion chamber 200 and the water supply passage 320. The water outlet valve 100 comprises a valve body 1. The valve body 1 has a hot water inlet 111, a first flow channel 121, a second flow channel 122, a heating passage 112 and a bathroom passage 123. The hot water inlet 111 is in communication with a hot water outlet 201 of the combustion chamber 200. The hot water inlet 111 can selectively communicate with the heating passage 112 or the first flow channel 121. The first flow channel 121 is in communication with an inlet of the heat exchange passage 310. An outlet of the heat exchange passage 310 is in communication with a fourth flow channel 402 of the water inlet valve 400. An inlet of the water supply passage 320 is in communication with a third flow channel 401 of the water inlet valve 400. An outlet of the water supply passage 320 is in communication with the second flow channel 122.

[0051] In use, when the hot water inlet 111 is in communication with the heating passage 112, hot water heated by the combustion chamber 200 can flow into the heating system 500 through the hot water outlet 201, the hot water inlet 111 and the heating passage 112 in sequence, so as to provide heating demand for users. Water in the heating system 500 after heat exchange with the outside can flow into the combustion chamber 200 through the water inlet valve 400 to be heated again, thereby forming a heating water circulation loop. When the hot water inlet 111 is in communication with the first flow channel 121, hot water heated by the combustion chamber 200 can flow into the heat exchange passage 310 of the heat exchange structure 300 through the hot water outlet 201, the hot water inlet 111 and the first flow channel 121 in sequence. After heat exchange with water in the water supply passage 320, the hot water can flow into the combustion chamber 200 through the water inlet valve 400 to be heated again, thereby forming a heat exchange circulation loop. Water in an external water source can flow into the water supply passage 320 of the heat exchange structure 300 through the water inlet valve 400. After heat exchange with water in the heat exchange passage 310, the water can flow into the bathroom system through the second flow channel 122 and the bathroom passage 123 in sequence, so as to provide domestic water for users.

[0052] It should be explained that the heating system 500 specifically refers to terminal heat dissipation components such as heating radiators, floor heating pipes or fan coil units. Water heated in the combustion chamber 200 can be pumped into the terminal heat dissipation components through the water outlet valve 100, and heat can be dissipated to indoor air through heat dissipation, so as to increase indoor environment temperature to meet the heating demand of users. The bathroom system specifically refers to a water device for users to perform shower, washing and other operations. Therefore, the heating system 500 and the bathroom system are relatively mature technologies in the art, and the specific structures of the heating system 500 and the bathroom system will not be described herein.

[0053] It should be further explained that the combustion chamber 200, the heat exchange structure 300 and the water inlet valve 400 are all relatively mature technologies in the field, and the specific structures of the combustion chamber 200, the heat exchange structure 300 and the water inlet valve 400 will not be described herein.

[0054] Figure 3 A second structural schematic diagram of the water outlet valve 100 provided in the embodiment is shown. Figure 3 And in combination with Figure 2 It is shown that the valve body 1 of the water outlet valve 100 includes a three-way valve part 11 and a second valve part 12 connected with each other, the hot water inlet 111 and the heating passage 112 are both arranged on the three-way valve part 11, and the first flow channel 121, the second flow channel 122 and the bathroom passage 123 are all arranged on the second valve part 12.

[0055] It should be particularly noted that, as Figure 2 And Figure 3 It is shown that the height direction of the water outlet valve 100 after actual installation is defined as the up-down direction, wherein the side of the water outlet valve 100 close to the combustion chamber 200 is defined as up, the side of the water outlet valve 100 away from the combustion chamber 200 is defined as down, the side of the water outlet valve 100 close to the heat exchange structure 300 is defined as back, and the side of the water outlet valve 100 away from the heat exchange structure 300 is defined as front; when a user stands facing the front of the water outlet valve 100, the side of the water outlet valve 100 toward the right hand of the user is defined as right, and the side of the water outlet valve 100 toward the left hand of the user is defined as left. In the embodiment, the height direction of the water outlet valve 100 refers to the up-down direction, the width direction of the water outlet valve 100 refers to the left-right direction, and the thickness direction of the water outlet valve 100 refers to the front-back direction. That is to say, in the embodiment, the three-way valve part 11 extends along the up-down direction, and the second valve part 12 is connected to the right side of the three-way valve part 11.

[0056] Figure 4 A third structural schematic diagram of the water outlet valve 100 provided in the embodiment is shown. Figure 5 A cross-sectional view at A-A is shown. Figure 4 As Figures 4-5 And in combination with Figure 2 It is shown that the three-way valve part 11 further has a three-way valve cavity 110, the three-way valve cavity 110 includes a first cavity 1102, a main valve cavity 1101 and a second cavity 1103 connected in sequence along the axial direction thereof, the main valve cavity 1101 is connected with the hot water inlet 111, and the main valve cavity 1101 can selectively connect the first cavity 1102 or the second cavity 1103; the heating passage 112 is connected with the first cavity 1102, and the first flow channel 121 is connected with the second cavity 1103. When the main valve cavity 1101 is connected with the first cavity 1102, the hot water in the combustion chamber 200 can be circulated in the heating water circulation loop; when the main valve cavity 1101 is connected with the second cavity 1103, the hot water in the combustion chamber 200 can be circulated in the heat exchange circulation loop.

[0057] Optionally, the water outlet valve 100 further comprises a switching mechanism 3 movably arranged in the three-way valve cavity 110 to selectively connect the heating passage 112 or the first flow passage 121 with the three-way valve cavity 110. That is, by moving the switching mechanism 3 in the three-way valve cavity 110, the passage between the main valve cavity 1101 and the first cavity 1102 or the passage between the main valve cavity 1101 and the second cavity 1103 can be selectively opened to achieve three-way switching. The specific structure and working principle of the switching mechanism 3 will not be described here, and any switching mechanism that can be applied to the water outlet valve 100 to achieve three-way switching in the three-way valve cavity is within the protection scope of the present embodiment.

[0058] Further, the water outlet valve 100 further comprises a driving mechanism (not shown in the figure), the output end of the driving mechanism is connected with the switching mechanism 3 to drive the switching mechanism 3 to move in the three-way valve cavity 110. In the present embodiment, the driving mechanism can be a synchronous motor, a stepping motor, a servo motor or other driving devices.

[0059] As shown in Figure 2 , Figure 3 and Figure 5 , the water outlet valve 100 further comprises a bypass structure 13 integrally formed on the valve body 1 and located beside the three-way valve part 11, the bypass structure 13 is provided with a bypass passage 1301 and a bypass cavity 1302 which are directly connected, one end of the bypass passage 1301 away from the bypass cavity 1302 is connected to the heating passage 112, the bypass cavity 1302 is connected to the first flow passage 121, and the bypass cavity 1302 is provided with the one-way valve assembly 2. By arranging the bypass structure 13 beside the three-way valve part 11 and connecting the bypass cavity 1302 of the bypass structure 13 to the first flow passage 121, the bypass structure 13 can be arranged between the three-way valve part 11 and the second valve part 12 to make full use of the space between the three-way valve part 11 and the second valve part 12, thereby greatly reducing the size of the water outlet valve 100 in the width direction and meeting the miniaturization design requirements of the entire wall-mounted stove water system.

[0060] It should be noted that when the hot water inlet 111 is connected to the heating passage 112, the water in the heating passage 112 can flow into the first flow passage 121 through the bypass passage 1301 and the bypass cavity 1302 in sequence to supplement the water in the heat exchange structure 300, thereby avoiding damage to the heat exchange structure 300 due to lack of water and at the same time achieving the purpose of pressure relief by circulating the fluid inside the wall-mounted stove.

[0061] Figure 6 shows Figure 5 a local enlarged view at B. As Figure 6 and in combination with 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 of the bypass valve 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 the pressure in the heating channel 112 is high during use, 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 in the heating channel 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 112.

[0062] Alternatively, the elastic element 22 can be a compression spring, which is easy to install and has a lower cost.

[0063] 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.

[0064] 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.

[0065] To facilitate the disassembly and maintenance of the one-way valve assembly 2, the bypass structure 13 away from the heating channel 112 is provided with a bypass opening 131 communicated with the bypass cavity 1302, and the bypass opening 131 is detachably sealed by a bypass plug 132, and the two ends of the elastic member 22 are abutted against the one-way valve core 21 and the bypass plug 132 respectively. When maintenance is needed, the operator only needs to disassemble the bypass plug 132 from the bypass opening 131, which is convenient and convenient. To ensure the sealing of the bypass plug 132 sealing the bypass opening 131, a second sealing member 133 is arranged between the bypass plug 132 and the bypass opening 131 to prevent the fluid in the bypass passage 1301 or the first flow passage 121 from leaking from the bypass opening 131. In this embodiment, the second sealing member 133 is a rubber sealing ring, which has good sealing effect, is easy to install, and has low cost.

[0066] Optionally, the distance L1 between the top of the one-way valve core 21 and the bypass opening 131 is 3mm-10mm. When maintenance is needed, the operator can easily take out the one-way valve core 21 from the bypass passage 1301 after disassembling the bypass plug 132. Exemplarily, 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 use requirement.

[0067] As shown in Figure 2 , the bypass structure 13 is located on the front side of the valve body 1. This setting can enable the operator to maintain and maintain it from the front of the valve body 1, without the need to disassemble the entire water outlet valve 100, further improving the convenience of the operator's operation.

[0068] As shown in Figure 5 and Figure 6 , the one-way valve core 21 comprises a sealing portion 211 and a first positioning column 212 connected to each other, the sealing portion 211 can be tightly fitted to the sealing surface 1303, one end of the elastic member 22 is sleeved on the first positioning column 212 and abuts against the sealing portion 211; the bypass plug 132 comprises a plugging portion 1321 and a second positioning column 1322 connected to each other, the plugging portion 1321 is sealed and plugged in the bypass opening 131, and the other end of the elastic member 22 is sleeved on the second positioning column 1322 and abuts against the plugging portion 1321. By arranging the first positioning column 212 and the second positioning column 1322, the elastic member 22 can be guided and limited, so as to prevent the elastic member 22 from tilting and changing the direction of the elastic force, thereby ensuring that the elastic member 22 exerts more stable force on the one-way valve core 21, and ensuring that the one-way valve core 21 can be tightly abutted against the sealing surface 1303 when it is in the sealing position.

[0069] 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 avoid the force exerted on the one-way valve core 21 when the liquid in the second cavity 1103 flows to the first flow channel 121, causing the one-way valve core 21 to move away from the sealing surface 1303, thereby opening the passage between the heating passage 112 and the first flow channel 121, affecting the normal use performance of the one-way valve assembly 2.

[0070] As shown in Figure 2 , the water outlet valve 100 further comprises a sensing element (not shown in the figure), and the second valve part 12 is further provided with a mounting interface 124, and the sensing element is mounted on the mounting interface 124. Among them, the sensing element can be a pressure detection element, to monitor the water pressure in the first flow channel 121 in real time, to timely remind the user to maintain when the water pressure in the first flow channel 121 is abnormal; the sensing element can also be a temperature detection element, for detecting the water temperature in the first flow channel 121, to timely adjust the power and other parameters of the combustion chamber 200 when the water temperature in the first flow channel 121 exceeds the preset temperature range.

[0071] Optionally, as shown in Figures 2-4 , the area where the bypass structure 13 and the second valve part 12 intersect has an overlapping part with the setting position of the mounting interface 124 on the second valve part 12. This design can improve the compactness of the structure of the water outlet valve 100, and further reduce the size of the valve body 1 in the width direction.

[0072] Further, the outlet of the first flow channel 121 forms a heat exchange inlet 1210, which is used to connect the heat exchange structure 300, and the area where the bypass structure 13 and the second valve part 12 intersect has an overlapping part with the setting position of the heat exchange inlet 1210 on the second valve part 12. This setting can further reduce the size of the valve body 1 in the width direction, improve the compactness of the structure of the water outlet valve 100, meet the miniaturization design requirements of the entire wall-mounted stove water system, and improve the user experience.

[0073] Embodiment Two

[0074] Figure 7 The first structure schematic diagram of the valve body 1 of the water outlet valve 100 provided by the embodiment is shown. Figure 8 The second structure schematic diagram of the valve body 1 of the water outlet valve 100 provided by the embodiment is shown. Figure 9 The cross-sectional view of the valve body 1 of the water outlet valve 100 provided by the embodiment is shown. As shown in Figures 7-9As shown, the embodiment provides a water outlet valve 100 applied to a wall-hanging stove water system, the wall-hanging stove water system comprising a combustion chamber 200 and the water outlet valve 100, the water outlet valve 100 having a hot water inlet 111, a heating passage 112, a first flow channel 121 and a bathroom passage 123, wherein the hot water inlet 111 of the water outlet valve 100 is in communication with a hot water outlet 201 of the combustion chamber 200, and the hot water inlet 111 is selectively in communication with the first flow channel 121 or the heating passage 112; one end of the first flow channel 121 away from the three-way valve part 11 is directly in communication with the bathroom passage 123. That is, the wall-hanging stove water system in the embodiment does not set a heat exchange structure and a water inlet valve, when the hot water inlet 111 is in communication with the first flow channel 121, water heated by the combustion chamber 200 can directly flow to the bathroom passage 123 through the first flow channel 121 to provide hot water for life to users.

[0075] Specifically, the valve body 1 comprises a three-way valve part 11 and a second valve part 12, the hot water inlet 111 and the heating passage 112 are both arranged in the three-way valve part 11, the first flow channel 121 and the bathroom passage 123 are both arranged in the second valve part 12, and the valve body 1 further integrally has a bypass structure 13. It should be noted that in the embodiment, the specific structure of the three-way valve part 11, the specific structure of the bypass structure 13 and the principle of three-way switching are the same as the corresponding structures in the water outlet valve 100 provided in the first embodiment, and the embodiment will not be repeated here.

[0076] Optionally, the first flow channel 121 comprises a first branch flow channel 1211 and a second branch flow channel 1212 in perpendicular communication, one end of the first branch flow channel 1211 away from the second branch flow channel 1212 is in communication with the second cavity 1103 of the three-way valve cavity 110, and one end of the second branch flow channel 1212 away from the first branch flow channel 1211 is in communication with the bathroom passage 123. This design can facilitate the processing of the first flow channel 121, simplify the processing technology and improve the processing efficiency.

[0077] Embodiment three

[0078] Figure 10 The structure schematic diagram of the valve body 1 of the water outlet valve 100 provided in the embodiment is shown. Figure 11 The cross-sectional view of the valve body 1 of the water outlet valve 100 provided in the embodiment is shown. As shown in the figure, Figures 10-11As shown, the embodiment provides a water outlet valve 100, which is applied to a wall-hanging stove water system, the wall-hanging stove water system comprising a combustion chamber 200 and the water outlet valve 100, the water outlet valve 100 having a hot water inlet 111, a heating passage 112, a first flow channel 121 and a bathroom passage 123, wherein the hot water inlet 111 of the water outlet valve 100 is in communication with a hot water outlet 201 of the combustion chamber 200, and the hot water inlet 111 is selectively in communication with the first flow channel 121 or the heating passage 112; the first flow channel 121 is directly in communication with the bathroom passage 123 at an end away from the three-way valve part 11.

[0079] Specifically, the valve body 1 comprises a three-way valve part 11 and a second valve part 12, the hot water inlet 111 and the heating passage 112 are both arranged in the three-way valve part 11, the first flow channel 121 and the bathroom passage 123 are both arranged in the second valve part 12, and the valve body 1 is further integrally formed with a bypass structure 13.

[0080] Optionally, in the embodiment, the axis direction of the first flow channel 121 is arranged at an angle with the axis direction of the three-way valve cavity 110, that is, the first flow channel 121 is arranged obliquely relative to the three-way valve cavity 110.

[0081] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the above-mentioned embodiments do not limit the utility model in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.

Claims

1. A bypass structure for a water outlet valve of a wall-hanging boiler water system, a valve body (1) of the water outlet valve is provided with a three-way valve part (11) and a first flow channel (121), the three-way valve part (11) has a three-way valve cavity (110) and a heating passage (112) therein, the three-way valve cavity (110) can selectively communicate the heating passage (112) and the first flow channel (121), characterized in that, The bypass structure is integrally formed on the valve body (1) and located at the side of the three-way valve part (11), a bypass channel (1301) and a bypass cavity (1302) are arranged in the bypass structure and communicate directly, one end of the bypass channel (1301) away from the bypass cavity (1302) communicates with the heating channel (112), the bypass cavity (1302) communicates with the first flow passage (121), and a one-way valve assembly (2) is arranged in the bypass cavity (1302).

2. The bypass structure according to claim 1, characterized in that The inner diameter of the bypass cavity (1302) is greater 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) comprises a one-way valve core (21) and an elastic member (22), and the one-way valve core (21) can abut against the sealing surface (1303) under the action of the elastic member (22).

3. The bypass structure of claim 2, wherein, In the height direction of the valve body (1), the sealing surface (1303) is located below the first flow passage (121).

4. The bypass structure of claim 2, wherein The end of the bypass structure away from the heating channel (112) is further provided with a bypass opening (131) communicating with the bypass cavity (1302), the bypass opening (131) is detachably sealed and blocked by a bypass plug (132), and the two ends of the elastic member (22) abut against the one-way valve core (21) and the bypass plug (132) respectively.

5. The bypass structure of claim 4, wherein, The distance between the top of the one-way valve core (21) and the bypass opening (131) is 3mm-10mm.

6. The bypass structure of claim 4, wherein, The one-way valve core (21) comprises a sealing part (211) and a first positioning column (212) connected with each other, the sealing part (211) can be sealingly fitted on the sealing surface (1303), one end of the elastic member (22) is sleeved on the first positioning column (212) and abuts against the sealing part (211), and / or the bypass plug (132) comprises a blocking part (1321) and a second positioning column (1322) connected with each other, the blocking part (1321) is sealingly blocked on the bypass opening (131), and the other end of the elastic member (22) is sleeved on the second positioning column (1322) and abuts against the blocking part (1321).

7. The bypass structure of claim 2, wherein The sealing surface (1303) is provided with an annular protrusion (1304) protruding therefrom, and the annular protrusion (1304) sealingly cooperates with the one-way valve core (21).

8. The bypass structure of claim 2, wherein, The one-way valve assembly (2) further comprises a first sealing member (23), and the first sealing member (23) is arranged on the side of the one-way valve core (21) facing the sealing surface (1303).

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

10. A water outlet valve characterized by The bypass structure is integrally formed on the valve body (1) and located at the side of the three-way valve part (11).

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