Water outlet valve

Abstract

The utility model relates to the technical field of valves, and discloses a water outlet valve. The water outlet valve comprises a valve body, a bypass valve element and a pressure relief valve element, the valve body comprises a valve main body and a bypass valve part connected to the valve main body, the valve main body is provided with a three-way valve cavity, a heating channel and a first heat exchange water inlet runner, the three-way valve cavity selectively communicates with the heating channel or the first heat exchange water inlet runner, and the first heat exchange water inlet runner is used for being connected with a heat exchange structure; the bypass valve part is provided with a bypass flow channel and a pressure relief channel; the bypass valve element and the pressure relief valve element are movably arranged in the bypass flow channel in a spaced mode, a pressure relief main cavity is formed by the gap between the bypass valve element and the pressure relief valve element, the pressure relief main cavity communicates with the side, close to the first heat exchange water inlet flow channel, of the three-way valve cavity, and the bypass valve element can selectively open a channel between the heating channel and the pressure relief main cavity. The pressure relief valve element can selectively open a channel between the pressure relief main cavity and the pressure relief channel. The water outlet valve integrates the bypass valve and the safety valve, and is small in size and convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a water outlet valve. Background Art

[0002] The wall-mounted boiler water system is a water heater that uses natural gas as energy. It has powerful home central heating functions, can meet the heating needs of multiple rooms, and can provide domestic water for use in home bathing, kitchen and other places.

[0003] The water system of a wall-mounted boiler in the related technology usually includes a combustion chamber, a heat exchange structure, a water inlet valve and a water outlet valve. The combustion chamber is usually installed on the wall of the room. The water inlet valve can provide water to the combustion chamber. The heat exchange structure includes a heat exchange channel and a water supply channel for heat exchange; the water outlet valve includes a valve body and a switching device. The valve body is provided with a hot water inlet, a heating water outlet interface, a bathroom water outlet interface, a heat exchange inlet interface and a heat exchange outlet interface. The hot water inlet is connected with the outlet of the combustion chamber, the heat exchange inlet interface is connected with the inlet of the heat exchange channel, the heat exchange outlet interface is connected with the outlet of the water supply channel, and the bathroom water outlet interface is connected with the heat exchange outlet interface. After the water in the water supply channel undergoes heat exchange with the heat exchange channel, it can flow to the bathroom water outlet interface through the heat exchange outlet interface to provide users with bathroom hot water; the hot water inlet is switched by the switching device to selectively connect to the heating water outlet interface or the heat exchange inlet interface.

[0004] The valve body is also equipped with a bypass valve to replenish water into the heat exchange structure, thereby preventing damage to the heat exchange structure due to dry burning due to water shortage. The bypass valve also serves to relieve pressure by circulating the fluid inside the wall-mounted boiler. In addition, some water outlet valves on the market are also equipped with a safety valve. The function of the safety valve is to automatically open when the internal pressure of the water outlet valve exceeds the preset pressure to discharge excess gas or hot water in the water outlet valve, thereby preventing the wall-mounted boiler system from exploding. However, in the prior art, the bypass valve and safety valve are usually two separate structures installed on the water outlet valve, resulting in a large volume of the entire water outlet valve, low space utilization, and inconvenient installation.

[0005] Therefore, it is urgent to propose a water outlet valve to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a water outlet valve which integrates a bypass valve and a safety valve into one body, which can reduce the overall volume of the water outlet valve to a certain extent, is easy to install, and has high safety in use.

[0007] As conceived above, the technical solution adopted by the utility model is:

[0008] A water outlet valve, comprising:

[0009] The valve body includes a valve body and a bypass valve portion connected to the valve body, the valve body having a three-way valve cavity, a heating channel, and a first heat exchange water inlet flow channel, the three-way valve cavity can selectively communicate with the heating channel or the first heat exchange water inlet flow channel, the first heat exchange water inlet flow channel is used to connect to the heat exchange structure; the bypass valve portion has a bypass flow channel and a pressure relief channel, and the pressure relief channel is connected to the outside;

[0010] The bypass valve core and the pressure relief valve core are both spaced apart and movably arranged in the bypass flow channel. The space between the bypass valve core and the pressure relief valve core forms a pressure relief main chamber. The pressure relief main chamber is connected to the side of the three-way valve chamber close to the first heat exchange water inlet flow channel. The bypass valve core can selectively open the passage between the heating channel and the pressure relief main chamber, and the pressure relief valve core can selectively open the passage between the pressure relief main chamber and the pressure relief channel.

[0011] As a preferred solution of the water outlet valve provided by the present invention, the spring preload force of the pressure relief valve core is greater than the spring preload force of the bypass valve core.

[0012] As a preferred solution of the water outlet valve provided by the present invention, a mounting opening is provided at one end of the bypass valve portion away from the valve body, and the pressure relief valve core is sealingly mounted at the mounting opening.

[0013] As a preferred solution of the water outlet valve provided by the present invention, the outlet of the pressure relief channel is arranged downward.

[0014] As a preferred solution of the water outlet valve provided by the present invention, the bypass valve portion is located at the front side of the valve body.

[0015] As a preferred solution of the water outlet valve provided by the present invention, the axial direction of the bypass valve portion extends in the front-to-back direction; or

[0016] The bypass valve portion is gradually inclined downward in a direction away from the valve body.

[0017] As a preferred solution of the water outlet valve provided by the present invention, the bypass valve core is a one-way valve core structure.

[0018] As a preferred solution of the water outlet valve provided by the present invention, the valve body further has a hot water inlet connected to the three-way valve cavity, the hot water inlet is used to connect to the combustion chamber, and the hot water inlet is arranged upward.

[0019] As a preferred solution of the water outlet valve provided by the utility model, the water outlet valve also includes a switching mechanism, which is movably arranged in the three-way valve cavity to enable the three-way valve cavity to selectively connect to the heating channel or the first heat exchange water inlet channel.

[0020] As a preferred solution of the water outlet valve provided by the present invention, the water outlet valve also includes a driving mechanism, the output end of the driving mechanism is connected to the switching mechanism to drive the switching mechanism to move in the three-way valve cavity, and the driving mechanism is located on the front side of the valve body.

[0021] The beneficial effects of the utility model are:

[0022] The utility model provides a water outlet valve, which is provided with a bypass valve portion, and a bypass valve core and a pressure relief valve core are movably provided in the bypass flow channel of the bypass valve portion. When the three-way valve chamber is connected with the heating channel, when the pressure of the water in the heating channel is high, the water in the heating channel can push the bypass valve core to move, so as to open the passage between the heating channel and the pressure relief main chamber, so that the water in the heating channel flows into the heat exchange structure through the pressure relief main chamber, the three-way valve chamber and the first heat exchange water inlet flow channel, thereby playing a role of pressure relief and replenishing water for the heat exchange structure to avoid damage to the heat exchange structure due to dry burning due to lack of water, thereby ensuring the safety of the heat exchange structure. If the pressure in the heating channel is too high, the water circulating inside the wall-mounted boiler water system still cannot achieve the effect of pressure relief. At this time, the water in the pressure relief main chamber can push the pressure relief valve core to move, so as to open the passage between the pressure relief main chamber and the pressure relief passage, so that the pressure in the water outlet valve is discharged from the pressure relief passage to the outside, thereby achieving the effect of pressure relief. When the three-way valve chamber is connected to the first heat exchange water inlet channel, if the internal pressure of the valve body is high, the water in the pressure relief main chamber can also push the pressure relief valve core to move, so as to open the passage between the pressure relief main chamber and the pressure relief passage, so that the pressure in the water outlet valve is discharged from the pressure relief passage to the outside, thereby achieving the effect of pressure relief. This water outlet valve, by arranging both the bypass valve core and the pressure relief valve core in the bypass valve part, is equivalent to integrating the bypass valve and the safety valve in the prior art into one, which can reduce the overall volume of the water outlet valve to a certain extent, facilitate installation, and further ensure the safety of the entire wall-mounted boiler water system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the water channel structure of the wall-mounted boiler water channel system provided by an embodiment of the utility model;

[0024] Figure 2 This is a schematic structural diagram of the water outlet valve provided by an embodiment of the present utility model at one viewing angle;

[0025] Figure 3 This is a schematic structural diagram of the water outlet valve provided by an embodiment of the present utility model from another perspective;

[0026] Figure 4 This is a schematic cross-sectional view of the water outlet valve provided by an embodiment of the present utility model;

[0027] Figure 5 yes Figure 4 A partial enlarged view of point A.

[0028] In the picture:

[0029] 100. Water outlet valve;

[0030] 1. Valve body; 10. Valve main 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; 12. Heating valve section; 121. Heating channel; 13. First valve section; 131. First heat exchange inlet channel; 14. Second valve section; 141. First heat exchange outlet channel; 15. Bypass valve section; 151. Bypass channel; 152. Pressure relief channel;

[0031] 2. Driving mechanism; 3. Switching mechanism; 4. Bypass valve core; 5. Pressure relief valve core;

[0032] 200, combustion chamber; 201, hot water outlet;

[0033] 300, heat exchange structure; 310, heat exchange channel; 320, water supply channel;

[0034] 400, water inlet valve; 401, second heat exchange water inlet flow channel; 402, second heat exchange water outlet flow channel;

[0035] 500. Heating system; 600. Connecting pipes. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0037] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0039] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0040] Figure 1 The figure shows the water channel structure diagram of the wall-mounted boiler water channel system provided in this embodiment. Figure 1 As shown, this embodiment provides a water outlet valve 100, which is used in the water system of a wall-mounted boiler. Figure 1 Briefly describe the specific structure and working principle of the wall-mounted boiler water system. The wall-mounted boiler water system includes a combustion chamber 200, a heat exchange structure 300, a water inlet valve 400, and a water outlet valve 100. The combustion chamber 200 can heat the water therein; the heat exchange structure 300 includes a heat exchange channel 310 and a water supply channel 320 that are thermally matched; the water inlet valve 400 can supply water to the combustion chamber 200 and the water supply channel 320; the water outlet valve 100 includes a valve body 1, which has a hot water inlet 111, a first heat exchange water inlet flow channel 131, a first heat exchange water outlet flow channel 141, a heating channel 121, and a bathroom channel 142; the hot water inlet 1 11 is connected to the hot water outlet 201 of the combustion chamber 200 through a connecting pipe 600, and the hot water inlet 111 can be selectively connected to the heating channel 121 or the first heat exchange water inlet channel 131; the first heat exchange water inlet channel 131 is connected to the inlet of the heat exchange channel 310, the outlet of the heat exchange channel 310 is connected to the second heat exchange outlet channel 402 of the water inlet valve 400, the inlet of the water supply channel 320 is connected to the second heat exchange inlet channel 401 of the water inlet valve 400, and the outlet of the water supply channel 320 is connected to the first heat exchange outlet channel 141.

[0041] During use, when the hot water inlet 111 is connected to the heating channel 121, the hot water heated by the combustion chamber 200 can flow into the heating system 500 through the hot water outlet 201, the connecting pipe 600, the hot water inlet 111, and the heating channel 121 in sequence to provide heating needs for users. The water in the heating system 500 that has exchanged heat with the outside world can then flow into the combustion chamber 200 through the water inlet valve 400 and be heated again, thereby forming a heating water circulation loop; when the hot water inlet 111 is connected to the first heat exchange water inlet channel 131, the hot water heated by the combustion chamber 200 can flow into the heating system 500 through the hot water outlet 201 in sequence to provide heating needs for users. The water flows through the heat exchange channel 310 of the heat exchange structure 300 through the water inlet 201, the connecting pipe 600, the hot water inlet 111, and the first heat exchange water inlet channel 131. After exchanging heat with the water in the water supply channel 320, it flows through the water inlet valve 400 to the combustion chamber 200 and is heated again, thereby forming a heat exchange circulation loop; water in the external water source can flow into the water supply channel 320 of the heat exchange structure 300 through the water inlet valve 400. After exchanging heat with the water in the heat exchange channel 310, it flows through the first heat exchange water outlet channel 141 and the bathroom channel 142 in sequence to the bathroom system to provide domestic water for users.

[0042] It should be explained that the heating system 500 specifically refers to terminal heat dissipation components such as radiators, floor heating pipes, or fan coil units. The water heated in the combustion chamber 200 can be pumped to the above-mentioned terminal heat dissipation components through the water outlet valve 100. The heat is dissipated into the indoor air through heat dissipation, thereby increasing the indoor ambient temperature to meet the user's heating needs. The bathroom system specifically refers to the water-using device for users to perform operations such as showering and washing. Therefore, the heating system 500 and the bathroom system are both relatively mature technologies in this field, and the specific structures of the heating system 500 and the bathroom system are not further described in this embodiment.

[0043] This embodiment does not limit the material of the connecting pipe 600, and it can be a copper pipe, a corrugated pipe, a stainless steel pipe, a plastic pipe, etc.

[0044] It should also be noted that the combustion chamber 200 and the water inlet valve 400 are both relatively mature technologies in this field, and the specific structures of the combustion chamber 200 and the water inlet valve 400 are not described in detail in this embodiment.

[0045] Figure 2 A schematic structural diagram of the water outlet valve 100 provided in this embodiment is shown at one viewing angle. Figure 3 FIG. 1 shows a schematic structural diagram of the water outlet valve 100 provided in this embodiment from another perspective. Figure 4 FIG. 1 shows a schematic cross-sectional structural diagram of the water outlet valve 100 provided in this embodiment. Figure 5 Shown Figure 4 A partial enlarged view at point A. Figure 2-Figure 5 Combined with Figure 1As shown, the outlet valve 100 provided in this embodiment includes a valve body 1, a bypass valve core 4 and a pressure relief valve core 5. The valve body 1 includes a valve body 10 and a bypass valve portion 15. The valve body 10 has a three-way valve cavity 110, a heating channel 121 and a first heat exchange water inlet flow channel 131. The three-way valve cavity 110 can selectively connect to the heating channel 121 or the first heat exchange water inlet flow channel 131; the bypass valve portion 15 is connected to the valve body 10, and the bypass valve portion 15 has a bypass flow channel 151 and a pressure relief channel 15 2. The pressure relief channel 152 is connected to the outside; the bypass valve core 4 and the pressure relief valve core 5 are spaced apart and can be movably arranged in the bypass channel 151. The space between the bypass valve core 4 and the pressure relief valve core 5 forms a pressure relief main chamber, which is connected to the side of the three-way valve chamber 110 close to the first heat exchange water inlet channel 131. The bypass valve core 4 can selectively open the passage between the heating channel 121 and the pressure relief main chamber, and the pressure relief valve core 5 can selectively open the passage between the pressure relief main chamber and the pressure relief channel 152.

[0046] The outlet valve 100 provided in this embodiment is provided with a bypass valve portion 15, and a bypass valve core 4 and a pressure relief valve core 5 are movably provided in the bypass flow channel 151 of the bypass valve portion 15. When the three-way valve chamber 110 is connected to the heating channel 121, when the pressure of the water in the heating channel 121 is high, the water in the heating channel 121 can push the bypass valve core 4 to move, so as to open the passage between the heating channel 121 and the pressure relief main chamber, so that the water in the heating channel 121 flows into the heat exchange structure 300 through the pressure relief main chamber, the three-way valve chamber 110 and the first heat exchange water inlet flow channel 131, thereby playing a role of pressure relief and replenishing water for the heat exchange structure 300 to avoid damage to the heat exchange structure 300 due to dry burning due to lack of water, thereby ensuring the heat exchange structure 300's safety of use; if the pressure in the heating channel 121 is too high, the water circulating inside the wall-mounted boiler water system still cannot achieve the effect of pressure relief. At this time, the water in the pressure relief main chamber can push the pressure relief valve core 5 to move to open the passage between the pressure relief main chamber and the pressure relief channel 152, so that the pressure in the water outlet valve 100 is discharged from the pressure relief channel 152 to the outside, thereby achieving the effect of pressure relief; when the three-way valve chamber 110 is connected to the first heat exchange water inlet channel 131, if the internal pressure of the valve body 1 is high, the water in the pressure relief main chamber can also push the pressure relief valve core 5 to move to open the passage between the pressure relief main chamber and the pressure relief channel 152, so that the pressure in the water outlet valve 100 is discharged from the pressure relief channel 152 to the outside, thereby achieving the effect of pressure relief. The water outlet valve 100, by arranging the bypass valve core 4 and the pressure relief valve core 5 in the bypass valve part 15, is equivalent to integrating the bypass valve and the safety valve in the prior art into one, which can reduce the overall volume of the water outlet valve 100 to a certain extent, facilitate installation, and further ensure the safety of the entire wall-mounted boiler water system.

[0047] Optionally, the spring preload of the pressure relief valve core 5 is greater than the spring preload of the bypass valve core 4. The purpose of this arrangement is that when the internal pressure of the valve body 1 is high, pressure relief can be preferentially achieved by circulating water within the boiler's water system. This means that water in the heating channel 121 opens the bypass valve core 4, allowing water to flow through the main pressure relief chamber, the three-way valve chamber 110, and the first heat exchange water inlet channel 131 to the heat exchange structure 300. If complete pressure relief cannot be achieved by circulating water within the boiler's water system, the pressure relief valve core 5 opens the passage between the main pressure relief chamber and the pressure relief channel 152 to discharge the internal pressure of the valve body 1 to the outside. This design reduces the frequency of activation of the pressure relief valve core 5, thereby extending its service life.

[0048] For ease of description, Figure 2 As shown, the height direction of the water outlet valve 100 after actual installation is defined as the up-down direction. The side of the water outlet valve 100 closer to the combustion chamber 200 is defined as the top, the side of the water outlet valve 100 facing away from the combustion chamber 200 is defined as the bottom, the side of the water outlet valve 100 closer to the heat exchange structure 300 is defined as the rear, and the side of the water outlet valve 100 facing away from the heat exchange structure 300 is defined as the front. When a user stands facing the front of the water outlet valve 100, the side of the water outlet valve 100 facing the user's right hand is defined as the right, and the side of the water outlet valve 100 facing the user's left hand is defined as the left. Furthermore, the height direction of the valve body 1 refers to the up-down direction, the width direction of the valve body 1 refers to the left-right direction, and the thickness direction of the valve body 1 refers to the front-back direction.

[0049] Alternatively, as Figure 5 As shown, the outlet of the pressure relief channel 152 is set downward, so that when the valve body 1 needs to relieve pressure to the outside, the water flowing from the pressure relief main cavity into the pressure relief channel 152 can flow out quickly under the action of its own gravity, thereby ensuring the timeliness of the pressure relief process.

[0050] like Figure 3-Figure 5 As shown, the bypass valve portion 15 has an installation opening at one end away from the valve body 10, and the pressure relief valve core 5 is sealably mounted in the installation opening. It should be noted that in the prior art, the bypass valve portion 15 has an installation opening at one end away from the valve body 10. This installation opening is typically detachably connected to a sealing plug. When the operator needs to inspect the bypass valve portion 15, the sealing plug can be directly removed, which is convenient and quick. In this embodiment, however, by installing the pressure relief valve core 5 at the installation opening of the bypass valve portion 15, the pressure relief valve core 5 functions as a safety valve, further ensuring the safety of the water outlet valve 100 during use. Furthermore, the pressure relief valve core 5 also seals the installation opening of the bypass valve portion 15, eliminating the need for a sealing plug and reducing manufacturing costs to a certain extent. After the pressure relief valve core 5 is installed in the installation opening, the sealing member of the pressure relief valve core 5 tightly engages the inner wall of the installation opening, thereby sealing the opening of the bypass flow channel 151.

[0051] In this embodiment, the bypass valve core 4 is a one-way valve core structure, which only allows water in the heating channel 121 to flow through the main pressure relief chamber into the three-way valve chamber 110, preventing water in the three-way valve chamber 110 from flowing back. The one-way valve core structure is a common valve structure in the art, and the specific structure and operating principle of the bypass valve core 4 are not detailed in this embodiment. Furthermore, this embodiment does not limit the specific structure of the pressure relief valve core 5; any pressure relief valve core that can provide a pressure relief effect in the prior art is within the scope of protection of this embodiment.

[0052] like Figure 2-Figure 4 As shown, the valve body 10 includes a three-way valve portion 11, a heating valve portion 12, a first valve portion 13 and a second valve portion 14, wherein the three-way valve cavity 110 is opened in the three-way valve portion 11 and extends in the front-to-back direction; the heating valve portion 12 is connected to the three-way valve portion 11, and the heating channel 121 is opened in the heating valve portion 12 and extends in the up-down direction; the first valve portion 13 and the second valve portion 14 are spaced apart in the up-down direction and are respectively connected to the right side of the three-way valve portion 11 and the right side of the heating valve portion 12, the first heat exchange inlet channel 131 is opened in the first valve portion 13, the first heat exchange outlet channel 141 and the bathroom channel 142 are both opened in the second valve portion 14, and the two are connected; the bypass valve portion 15 is connected to the heating channel 121. Compared with the solution in the prior art of coaxially arranging the three-way valve part 11 and the heating valve part 12, the three-way valve part 11 and the heating valve part 12 are vertically connected in this embodiment, which can greatly reduce the size of the valve body 1 in the height direction and make full use of the size of the valve body 1 in the thickness direction, thereby achieving the effect of reducing the height of the valve body 1, and then reducing the installation height of the entire wall-mounted boiler water system to meet the miniaturization requirements of the wall-mounted boiler water system.

[0053] It is worth noting that, in this embodiment, the three-way valve portion 11 is arranged along the front-to-back direction, the heating valve portion 12 is connected to the lower part of the three-way valve portion 11, and the first valve portion 13 and the second valve portion 14 are respectively connected to the right side of the three-way valve portion 11 and the right side of the heating valve portion 12, so that the entire valve body 1 is roughly square in layout, making full use of the space of the valve body 1 in the width and thickness directions, greatly reducing the installation height of the entire wall-mounted boiler water system, and optimizing the spatial layout of the entire system.

[0054] To facilitate maintenance of the bypass valve 15 by the operator, in this embodiment, the bypass valve 15 is connected to the front side of the heating channel 121. The operator can perform maintenance on the water outlet valve 100 from the front without having to remove the entire water outlet valve 100, which improves the convenience of the operator's operation.

[0055] In this embodiment, the bypass valve portion 15 is axially parallel to the axial direction of the three-way valve portion 11, meaning that the bypass valve portion 15 also extends in the front-to-back direction. This design allows the bypass valve portion 15 to be located between the three-way valve portion 11 and the heating valve portion 12, making the entire water outlet valve 100 more compact, shortening the bypass distance, and thus reducing response time.

[0056] Of course, in other embodiments, the axial direction of the bypass valve portion 15 can also be set to form an angle with the axial direction of the three-way valve portion 11. In this example, to facilitate the operator's maintenance of the bypass valve portion 15, the extension direction of the bypass valve portion 15 can be set to gradually tilt downward away from the heating valve portion 12 to prevent the end of the pressure relief valve core 5 from interfering with other structures and affecting the operator's operation.

[0057] like Figure 3 and Figure 4 As shown, the three-way valve chamber 110 includes a second chamber 1103, a main valve chamber 1101, and a first chamber 1102, which are arranged in sequence along the front-to-back direction. The first chamber 1102 is connected to the heating channel 121, and the second chamber 1103 is connected to the first heat exchange water inlet channel 131. The main valve chamber 1101 can selectively communicate with the first chamber 1102 or the second chamber 1103. The hot water inlet 111 is provided on the three-way valve portion 11 and is connected to the main valve chamber 1101. 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 to selectively provide domestic water to users or meet their heating needs.

[0058] Optionally, the outlet valve 100 further includes a switching mechanism 3, which is movably disposed in the three-way valve chamber 110 so as to selectively connect the three-way valve chamber 110 to the heating channel 121 or the first heat exchange water inlet channel 131. In other words, 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 further described in this embodiment. All switching mechanisms in the prior art that can achieve three-way switching in the three-way valve chamber 110 are within the scope of protection of this embodiment.

[0059] Furthermore, the water outlet valve 100 also includes a drive mechanism 2, 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 portion 11. In this embodiment, the drive mechanism 2 is a synchronous motor. Of course, in other embodiments, depending on the design of the switching mechanism 3, the drive mechanism 2 can also be a stepper motor or other drive device.

[0060] It should be noted that by arranging the three-way valve portion 11 along the front-to-back direction, the drive mechanism 2 can also be installed on the front side of the valve body 1 (the drive mechanism in the prior art is usually installed between the valve body and the combustion chamber, that is, the drive mechanism is installed on the upper part of the valve body 1) to avoid the spacing area between the valve body 1 and the combustion chamber 200, make full use of the space of the valve body 1 in the thickness direction, further shorten the distance between the valve body 1 and the combustion chamber 200, and reduce the height of the entire wall-mounted boiler water system.

[0061] Alternatively, as Figure 1-Figure 3 As shown, the hot water inlet 111 is disposed upward, and the hot water inlet 111 is directly connected to the hot water outlet 201 via the connecting pipe 600. Compared to the prior art method of disposing the hot water inlet on the side of the valve body 1, the upward disposition of the hot water inlet 111 in this embodiment shortens the distance between the hot water inlet 111 and the hot water outlet 201, thereby reducing the length and material of the connecting pipe 600, thereby reducing material costs to a certain extent. In addition, the above arrangement allows the connecting pipe 600 to be processed into a straight pipe structure, which can achieve communication between the hot water inlet 111 and the hot water outlet 201 without excessive bends, thereby avoiding the phenomenon of large water resistance caused by excessive bends in the connecting pipe 600.

[0062] The above embodiments merely illustrate the basic principles and features of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications are possible without departing from the spirit and scope of the present invention. Such changes and modifications are within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A water outlet valve, characterized in that: include: A valve body (1) comprises a valve body (10) and a bypass valve portion (15) connected to the valve body (10), wherein the valve body (10) comprises a three-way valve cavity (110), a heating channel (121) and a first heat exchange water inlet flow channel (131), wherein the three-way valve cavity (110) can selectively communicate with the heating channel (121) or the first heat exchange water inlet flow channel (131), and the first heat exchange water inlet flow channel (131) is used to connect to a heat exchange structure (300); the bypass valve portion (15) comprises a bypass flow channel (151) and a pressure relief channel (152), and the pressure relief channel (152) is communicated with the outside; A bypass valve core (4) and a pressure relief valve core (5) are spaced apart and movably arranged in the bypass flow channel (151); the space between the bypass valve core (4) and the pressure relief valve core (5) forms a pressure relief main chamber; the pressure relief main chamber is connected to the side of the three-way valve chamber (110) close to the first heat exchange water inlet flow channel (131); the bypass valve core (4) can selectively open the passage between the heating channel (121) and the pressure relief main chamber; and the pressure relief valve core (5) can selectively open the passage between the pressure relief main chamber and the pressure relief channel (152).

2. The water outlet valve according to claim 1, characterized in that: The spring preload force of the pressure relief valve core (5) is greater than the spring preload force of the bypass valve core (4).

3. The water outlet valve according to claim 1, characterized in that: An installation opening is provided at one end of the bypass valve portion (15) away from the valve body (10), and the pressure relief valve core (5) is sealingly installed at the installation opening.

4. The water outlet valve according to claim 1, characterized in that: The outlet of the pressure relief channel (152) is arranged downward.

5. The water outlet valve according to claim 1, characterized in that: The bypass valve portion (15) is located on the front side of the valve body (10).

6. The water outlet valve according to claim 5, characterized in that: The axial direction of the bypass valve portion (15) extends in the front-rear direction; or The bypass valve portion (15) is gradually inclined downward in a direction away from the valve body (10).

7. The water outlet valve according to claim 1, characterized in that: The bypass valve core (4) is a one-way valve core structure.

8. The water outlet valve according to claim 1, characterized in that: The valve body (10) also has a hot water inlet (111) connected to the three-way valve chamber (110). The hot water inlet (111) is used to connect to the combustion chamber (200), and the hot water inlet (111) is arranged upward.

9. The water outlet valve according to any one of claims 1 to 8, characterized in that: The water outlet valve further comprises a switching mechanism (3), wherein the switching mechanism (3) is movably arranged in the three-way valve cavity (110) so as to enable the three-way valve cavity (110) to selectively connect to the heating channel (121) or the first heat exchange water inlet channel (131).

10. The water outlet valve according to claim 9, characterized in that: The water outlet valve further comprises a driving mechanism (2), the output end of the driving mechanism (2) being connected to the switching mechanism (3) to drive the switching mechanism (3) to move in the three-way valve chamber (110), and the driving mechanism (2) is located on the front side of the valve body (1).

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