Water inlet valve and waterway module

Abstract

The utility model relates to wall -hanging stove technical field discloses a kind of water inlet valve and water inlet module, water inlet valve includes valve main body, water flow regulating assembly and water replenishing valve, and water inlet interface and bathroom heat exchange interface are equipped on valve main body, water inlet passage and outlet passage are equipped in valve main body, water flow regulating assembly includes valve seat and driving part, first passage and second passage are equipped in valve seat, water inlet passage and outlet passage are always connected by first passage, simultaneously, it is selectively communicated by second passage, the output end of driving part can open or close second passage, water replenishing passage and water replenishing hole are equipped in valve main body, water replenishing passage and water inlet passage are independently spaced apart and with water pump interface on valve main body intercommunication, and water replenishing valve is used to selectively block water replenishing hole. The water inlet valve can increase the water inlet flow of bathroom waterway, and can also manually replenish water for heating waterway, and cancels a water inlet flow channel, simplifies structure, reduces processing cost, improves economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of wall-hung boiler technology, specifically to a water inlet valve and water circuit module. Background Technology

[0002] A wall-hung boiler is a common type of home heating equipment that provides both domestic hot water and heating. When providing domestic hot water, cold water is continuously supplied to the heat exchanger through the boiler's inlet valve. This cold water exchanges heat with the hot water from the boiler within the heat exchanger to form warm water, which then flows out from the outlet valve for the user's use.

[0003] Currently, the inlet valves used in the market usually rely on flow-limiting rings to restrict the inlet water flow, so as to ensure that the wall-hung boiler can provide domestic hot water in a timely and fast manner under the rated power. However, when multiple water switches are turned on at the same time, the water demand increases, but the inlet water flow is kept constant due to the restriction of the flow-limiting ring in the inlet valve, which causes the water flow at the outlet to become abnormally small.

[0004] To address the aforementioned issues, related technologies integrate a water flow regulating valve within the inlet valve. The valve seat of this regulating valve contains two channels: a first channel that is normally open to maintain a fixed flow rate, and a second channel that serves as a supplementary channel. The output of the drive unit is located on the path of the second channel, thereby controlling its on / off state. Correspondingly, the valve body of the inlet valve is equipped with two independent inlet channels and one outlet channel. The first inlet channel and the outlet channel are normally connected via the first channel, while the second inlet channel and the outlet channel are selectively connected via the second channel, allowing for continuous connection to increase the flow rate of domestic hot water.

[0005] Meanwhile, since there will be water loss during the long-term operation of the heating water circuit, a manual water replenishment valve will be integrated into the inlet valve to ensure the water supply of the heating water circuit. Correspondingly, a water replenishment channel that selectively connects to the second outlet channel will be set in the valve body. By operating the water replenishment valve, the water replenishment channel and the second outlet channel can be connected to achieve the purpose of replenishing water to the heating water circuit at any time.

[0006] Therefore, considering the above structure, in order to simultaneously increase the flow rate of domestic hot water and replenish the heating water circuit, the valve body has many internal channels, resulting in a complex structure of the entire inlet valve, high processing costs, and a lack of market competitiveness.

[0007] Therefore, there is an urgent need to provide an inlet valve and water circuit module to solve the above problems. Utility Model Content

[0008] The purpose of this utility model is to provide an inlet valve and water circuit module that can increase the inlet water flow of the bathroom water circuit, while also allowing manual water replenishment to the heating water circuit of the wall-hung boiler. Furthermore, it eliminates one of the inlet channels on the valve body, simplifying the structure, reducing processing costs, and improving economic efficiency.

[0009] This utility model is achieved through the following technical solution:

[0010] A water inlet valve, comprising:

[0011] The valve body is provided with a water inlet and a bathroom heat exchange interface. The valve body is provided with a water inlet channel communicating with the water inlet and a water outlet channel communicating with the bathroom heat exchange interface.

[0012] A water flow regulating component includes a valve seat mounted on the valve body and a drive unit mounted on the valve seat. The valve seat has a first channel and a second channel. The inlet channel and the outlet channel are normally connected through the first channel and selectively connected through the second channel. The output end of the drive unit can open or close the second channel.

[0013] A water supply valve is installed on the valve body. The valve body has a water supply channel and a water supply hole that connects the water supply channel and the water inlet channel. The water supply channel and the water inlet channel are independently spaced and connected to the water pump interface on the valve body. The water supply valve is used to selectively block the water supply hole.

[0014] As an optional solution, the valve body includes a first valve body and a second valve body. The water flow regulating component, the water supply valve, and the water supply hole are disposed on the first valve body. The water inlet, the bathroom heat exchange interface, and the water pump interface are disposed on the second valve body. The first valve body includes a first insertion pipe and a second insertion pipe arranged at intervals and adjacent to each other. The second valve body includes a first receiving pipe and a second receiving pipe arranged at intervals and adjacent to each other. The first insertion pipe has the water inlet channel and the water outlet channel and is inserted into the first receiving pipe. The second insertion pipe is inserted into the second receiving pipe, and the two together form part of the water supply channel.

[0015] As an optional solution, the first valve body further includes an installation branch pipe arranged at an angle to the second insertion pipe. The installation branch pipe has an installation cavity coaxially connected to the water supply hole. At least part of the water supply valve is disposed in the installation cavity and can selectively block the water supply hole. A communication gap is formed between the side wall of the water supply hole and the inner side wall of the installation branch pipe. The installation cavity and the water supply channel are directly connected through the communication gap.

[0016] As an optional solution, the second insertion pipe is inserted into the second receiving pipe and the two together form the first water supply chamber. The second valve body is also provided with a second water supply chamber that is directly connected to the water pump interface. A communication port connecting the first water supply chamber and the second water supply chamber is opened on the side wall of the second receiving pipe. The first water supply chamber, the communication port and the second water supply chamber together form the water supply channel.

[0017] As an optional solution, the second valve body is also provided with a main inlet and outlet water channel that is perpendicular to and communicates with the first receiving pipe and the second receiving pipe. After the first insertion pipe is inserted into the first receiving pipe, it extends into the main inlet and outlet water channel and divides the main inlet and outlet water channel into an inlet chamber and an outlet chamber. The inlet chamber is connected to the inlet interface and the inlet channel respectively, and the outlet chamber is connected to the outlet channel and the bathroom heat exchange interface respectively.

[0018] As an optional solution, the first water replenishment chamber and the water inlet chamber are arranged adjacent to each other and a baffle plate is provided between them, so that the first water replenishment chamber and the water inlet chamber are isolated from each other.

[0019] As an alternative, the first insertion tube is provided with a partition plate extending along its axis, the partition plate dividing the channel within the first insertion tube into the water inlet channel and the water outlet channel.

[0020] As an optional solution, the cross-sectional area of ​​the water inlet channel is S1, and the cross-sectional area of ​​the water outlet channel is S2, wherein S1 / S2 < 1.

[0021] As an alternative, a flow-limiting ring is installed in the first channel.

[0022] As an alternative, a partition plate is provided at the intersection of the first channel and the second channel, the partition plate being used to separate the first channel and the second channel.

[0023] As an alternative, the first channel has a first outlet connecting the first channel and the water outlet channel, and the second channel has a second outlet connecting the second channel and the water outlet channel, with the first outlet and the second outlet having different orientations.

[0024] As an alternative, the second channel has two second outlets, which are located on opposite sides of the valve seat and are symmetrically arranged about the first outlet.

[0025] As an optional solution, the driving component is a solenoid valve.

[0026] A water circuit module includes a plate heat exchanger, an outlet valve, and the aforementioned inlet valve, wherein the plate heat exchanger is connected between the outlet valve and the inlet valve.

[0027] The beneficial effects of this utility model are as follows:

[0028] This utility model provides a water inlet valve. First, it can adjust the flow rate according to water usage, enabling faster heating of water to the rated temperature when water consumption is low, and timely provision of a large flow rate when water consumption is high. The product is not limited by the flow-limiting ring of the past, ensuring sufficient water supply at the outlets even when multiple outlets are operating simultaneously, meeting user needs and improving the user experience. Second, it integrates a water replenishment valve. The inlet channel of the water inlet valve can increase the water flow in the bathroom circuit, while also allowing manual replenishment of the heating circuit of the wall-mounted boiler. This saves space compared to installing a separate water replenishment valve. Furthermore, it reduces the number of inlet channels in related technologies by using only one inlet channel to achieve the purpose of increasing flow rate. The elimination of one inlet channel and its replacement as a water replenishment channel simplifies the structure of the water inlet valve, reduces processing costs, and improves the product's market competitiveness and economic benefits.

[0029] This utility model also provides a water circuit module. By setting the above-mentioned inlet valve, the water flow rate of the bathroom water circuit can be increased, and the heating water circuit of the wall-hung boiler can be manually replenished. In addition, one of the inlet channels on the valve body is eliminated, which simplifies the structure, reduces the processing cost, and improves economic efficiency. Attached Figure Description

[0030] To more clearly and understandably illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the water inlet valve provided in this embodiment of the present invention from a first-view perspective;

[0032] Figure 2 This is a schematic diagram of the water inlet valve provided in this embodiment of the present invention from a second perspective.

[0033] Figure 3 This is a first sectional view of the water inlet valve provided in this embodiment of the utility model;

[0034] Figure 4 This is a second sectional view of the water inlet valve provided in this embodiment of the utility model;

[0035] Figure 5 This is a cross-sectional view of the valve seat and the flow-limiting ring provided in an embodiment of this utility model;

[0036] Figure 6 This is a schematic diagram of the valve seat provided in an embodiment of the present invention;

[0037] Figure 7 This is a cross-sectional view of the valve seat provided in an embodiment of this utility model;

[0038] Figure 8 This is a schematic diagram of the structure of the valve seat and the flow-limiting ring provided in this embodiment of the utility model.

[0039] In the picture:

[0040] 1. Valve body; 11. First valve body; 111. First insertion pipe; 1111. Water inlet channel; 1112. Water outlet channel; 1113. Partition plate; 112. Second insertion pipe; 113. Installation branch pipe; 1131. Installation cavity; 1132. Connecting gap; 114. Valve cavity; 115. Connecting cavity; 12. Second valve body; 121. Water inlet interface; 122. Bathroom heat exchange interface; 123. Heating heat exchange interface; 124. Water pump interface; 125. First receiving pipe; 126. Second receiving pipe; 127. Main inlet and outlet channels; 1271. Water inlet cavity; 1272. Water outlet cavity; 128. Baffle plate; 13. Water supply channel; 131. First water supply cavity; 132. Second water supply cavity; 133. Connecting port; 14. Water supply hole;

[0041] 2. Water flow regulating assembly; 201. Solenoid valve; 21. Solenoid coil; 22. Sealing component; 221. Sealing seat; 222. Sealing gasket; 23. Valve seat; 231. First channel; 2311. First outlet; 232. Second channel; 2321. Second outlet; 233. Divider plate; 234. Limiting platform; 24. Flow limiting ring;

[0042] 3. Water inlet valve;

[0043] 4. Flow detection component. Detailed Implementation

[0044] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0045] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0048] This embodiment provides an inlet valve that can regulate the inlet flow of bathroom water (i.e., domestic water) and replenish the heating water circuit, adapting to different user needs and providing a comfortable experience. The inlet valve is applied to the water supply module of the wall-hung boiler. This module specifically includes an inlet valve, an outlet valve, and a plate heat exchanger connecting the inlet and outlet valves. The inlet valve is connected to a cold water source, and the outlet valve is connected to the wall-hung boiler. The plate heat exchanger has hot water and cold water channels. In heating mode, the wall-hung boiler supplies hot water to the heating pipes through the outlet valve, and then the hot water is pumped back to the boiler, forming a medium circulation. In bathroom mode, hot water from the wall-mounted boiler flows through the outlet valve to the hot water channel of the plate heat exchanger, while external cold water flows through the inlet valve to the cold water channel of the plate heat exchanger. Thus, the cold water in the cold water channel exchanges heat with the hot water in the hot water channel to form warm water, which then flows from the bathroom water outlet of the outlet valve to the bathroom pipes to supply water for the bathroom to the user. This part is existing technology and will not be elaborated on here.

[0049] Specifically, such as Figure 1 and Figure 3 As shown, the inlet valve includes a valve body 1 and a water flow regulating component 2. The valve body 1 is provided with an inlet port 121, a bathroom heat exchange port 122, a heating heat exchange port 123, and a water pump port 124. The valve body 1 is provided with an inlet channel 1111 communicating with the inlet port 121 and an outlet channel 1112 communicating with the bathroom heat exchange port 122. With the direction in which the inlet port 121 faces forward, the water flow regulating component 2 is located above the valve body 1. The bathroom heat exchange port 122 and the heating heat exchange port 123 are both located at the bottom of the valve body 1, with the heating heat exchange port 123 closer to the inlet port 121 and the bathroom heat exchange port 122 farther away from the inlet port 121. The water pump port 124 is located on the right side of the valve body 1, close to the inlet port 121. The inlet port 121 is used to connect to an external cold water source. The bathroom heat exchange port 122 is used to connect to the inlet of the cold water channel of the plate heat exchanger. The heating heat exchange port 123 is used to connect to the outlet of the hot water channel of the plate heat exchanger. The outlet of the cold water channel and the inlet of the hot water channel of the plate heat exchanger are both connected to the outlet valve. The water pump port 124 is connected to the heating heat exchange port 123 and is used to connect the water pump. The water pump is used to transport the medium back to the wall-hung boiler.

[0050] like Figure 2 As shown, the water flow regulating component 2 includes a valve seat 23 mounted on the valve body 1 and a drive component mounted on the valve seat 23. The valve seat 23 has a first channel 231 and a second channel 232. The inlet channel 1111 and the outlet channel 1112 are normally connected through the first channel 231 and selectively connected through the second channel 232. The output end of the drive component can open or close the second channel 232. The valve seat 23 is provided with a mounting platform for mounting the drive component. The drive component is mounted on the mounting platform, and the output end of the drive component is located on the path of the second channel 232. The drive component can open or close the second channel 232 by controlling the movement of its output end.

[0051] In this embodiment, the driving component is a solenoid valve 201. In other embodiments, the driving component can also be any drive structure capable of moving its output end to open or close the second channel 232, such as a servo motor. In this embodiment, the solenoid valve 201 is used as the driving component for explanation. In bathroom mode, the inlet valve functions as a domestic water inlet. The inlet channel 1111 is a normally open channel and is normally connected to the outlet channel 1112. The opening or closing of the second channel 232 is controlled by the solenoid valve 201 to increase the flow rate at any time.

[0052] like Figure 2 and Figure 3As shown, a flow-limiting ring 24 is installed in the first channel 231. The flow-limiting ring 24 is used to limit the amount of cold water entering the first channel 231, ensuring that the water can be heated to the rated temperature under limited heat power. It should be noted that the specific structure and working principle of the flow-limiting ring 24 are existing technologies and will not be described in detail here.

[0053] Combination Figure 3 When water is introduced, external cold water flows into the inlet channel 1111 from the inlet interface 121. In low flow mode, the solenoid valve 201 is energized to close the second channel 232. The cold water flows from the inlet channel 1111 through the first channel 231 to the outlet channel 1112. Due to the effect of the flow limiting ring 24, the flow rate through the first channel 231 is constant. After the cold water flows out of the outlet channel 1112, it flows through the bathroom heat exchange interface 122 into the cold water channel of the plate heat exchanger, where it exchanges heat with the hot water in the hot water channel to form warm water. Then, it flows from the outlet of the cold water channel to the outlet valve, and finally from the bathroom water outlet of the outlet valve to the bathroom pipes to supply water for the bathroom for users. The hot water after heat exchange in the hot water channel flows through the heating heat exchange interface 123 to the water pump interface 124. The water pump sends the hot water back to the wall-mounted boiler for heating. In high-flow mode, solenoid valve 201 opens the second channel 232 to increase the flow rate. After the cold water flows out from the inlet channel 1111, it splits into two paths. One path of cold water directly enters the outlet channel 1112 through the first channel 231, and the other path of cold water enters the outlet channel 1112 through the second channel 232. The two paths of cold water merge in the outlet channel 1112 and finally flow through the bathroom heat exchange interface 122 into the cold water channel of the plate heat exchanger for heat exchange to form warm water, thereby increasing the flow rate.

[0054] Therefore, the water inlet valve provided in this embodiment can adjust the flow rate according to the water usage, so that the water can be heated to the rated temperature faster when the water usage is small, and a large flow rate can be provided in time when the water usage is large. The product is not limited by the previous flow limiting ring 24, ensuring that there is enough water at the outlet when multiple outlets at the water end are working at the same time, meeting the user's water usage needs and improving the user's user experience.

[0055] Optionally, such as Figure 3 As shown, the solenoid valve 201 includes a solenoid coil 21 and a sealing element 22. The solenoid coil 21 is fixedly mounted on the valve seat 23. The sealing element 22 includes a sealing seat 221 and a sealing gasket 222. The sealing seat 221 is connected to the output end of the solenoid coil 21, and the sealing gasket 222 is fixedly mounted on the lower side of the sealing seat 221. The sealing gasket 222 can be made of rubber, which is soft. The sealing seat 221 supports the sealing gasket 222, thereby achieving a good sealing effect. The specific structure and working principle of the solenoid coil 21 are existing technologies and will not be described in detail here.

[0056] In this embodiment, combined with Figures 2 to 4 The inlet valve also includes a water replenishment valve 3, which is installed on the valve body 1. The valve body 1 has a water replenishment channel 13 and a water replenishment hole 14 connecting the water replenishment channel 13 and the inlet channel 1111. The water replenishment channel 13 and the inlet channel 1111 are independently spaced and connected to the water pump interface 124. The water replenishment valve 3 is used to selectively block the water replenishment hole 14. The water replenishment valve 3 is a manual water replenishment valve. The specific structure of the manual water replenishment valve is prior art and will not be described in detail here.

[0057] When the heating water system is short of water, the water inlet 14 is opened by turning the handle of the water inlet valve 3. At this time, the water inlet channel 13 is connected to the water inlet channel 1111 through the water inlet 14. The water in the water inlet channel 1111 flows into the water inlet channel 13 through the water inlet 14, and then flows to the water pump interface 124. The water is then pumped to the wall-mounted boiler for heating, thus replenishing the heating water system. When the water inlet 14 is closed, the water inlet valve 3 does not function.

[0058] Therefore, the inlet valve provided in this embodiment also integrates a water replenishment valve 3. The water inlet channel 1111 of the inlet valve can increase the water flow of the bathroom water circuit, and at the same time, it can replenish the heating water circuit of the wall-hung boiler. This saves the space of installing a separate water replenishment valve 3, and reduces the number of two water inlet channels 1111 in related technologies. The purpose of increasing the flow can be achieved by using only one water inlet channel 1111. One water inlet channel 1111 is eliminated, and the position of the water inlet channel 1111 is set as the water replenishment channel 13. This simplifies the structure of the inlet valve, reduces the processing cost, and improves the market competitiveness and economic benefits of the product.

[0059] Optionally, such as Figure 2 and Figure 3 As shown, the valve body 1 consists of two parts, including a first valve body 11 and a second valve body 12. The first valve body 11 and the second valve body 12 are inserted and connected. The water flow regulating component 2, the water supply valve 3 and the water supply hole 14 are provided on the first valve body 11. The water inlet interface 121, the bathroom heat exchange interface 122 and the water pump interface 124 are provided on the second valve body 12. The first valve body 11 includes a first insertion pipe 111 and a second insertion pipe 112 arranged in parallel and adjacent. The second valve body 12 includes a first receiving pipe 125 and a second receiving pipe 126 arranged in parallel and adjacent. The first insertion pipe 111 is provided with a water inlet channel 1111 and a water outlet channel 1112 and is sealed and inserted into the first receiving pipe 125. The second insertion pipe 112 is sealed and inserted into the second receiving pipe 126, and the two together form a partial water supply channel 13.

[0060] like Figure 3As shown, the first valve body 11 also includes an installation branch pipe 113 arranged at an angle to the second insertion pipe 112. An installation cavity 1131, coaxially connected to the water supply hole 14, is formed within the installation branch pipe 113. At least a portion of the water supply valve 3 is disposed within the installation cavity 1131 and can selectively block the water supply hole 14. A communication gap 1132 is formed between the sidewall of the water supply hole 14 and the inner sidewall of the installation branch pipe 113. The installation cavity 1131 and the water supply channel 13 are directly connected through the communication gap 1132. Specifically, the installation branch pipe 113 is perpendicular to the second insertion pipe 112. The handwheel of the water supply valve 3 is located outside the installation branch pipe 113 and rotates in cooperation with it. The valve core of the water supply valve 3 is located within the installation cavity 1131 and is used to block the water supply hole 14. Rotating the handwheel can drive the valve core to move axially, thereby opening or closing the water supply hole 14.

[0061] Combination Figure 3 When the heating water system is short of water, the water inlet 14 is opened by turning the handle of the water inlet valve 3. At this time, the water inlet channel 1111 is connected to the mounting cavity 1131 through the water inlet 14. Figure 3 The arrow in the diagram indicates that the water in the inlet channel 1111 flows sequentially through the water inlet hole 14, the mounting cavity 1131, the connecting gap 1132, and the water inlet channel 13 to the water pump interface 124, and is then pumped to the wall-mounted boiler for heating, thus replenishing the heating water circuit.

[0062] In an optional embodiment, such as Figure 3 and Figure 4 As shown, the second insertion pipe 112 is inserted into the second receiving pipe 126, and the two together form the first water supply chamber 131. The first water supply chamber 131 is parallel to and adjacent to the water inlet channel 1111, reducing space occupation. The second valve body 12 also has a second water supply chamber 132 that is directly connected to the water pump interface 124. The second water supply chamber 132 is located beside the first water supply chamber 131. A connecting port 133 is opened on the side wall of the second receiving pipe 126 to connect the first water supply chamber 131 and the second water supply chamber 132. The first water supply chamber 131, the connecting port 133, and the second water supply chamber 132 together form the water supply channel 13. Water in the water inlet channel 1111 flows through the water supply hole 14 to the connecting gap 1132, such as... Figure 4 The water first flows into the first water supply chamber 131, then through the connecting port 133 to the second water supply chamber 132, and finally to the water pump interface 124. The water is then pumped to the wall-mounted boiler for heating, thus replenishing the heating water circuit.

[0063] Optionally, such as Figure 3As shown, a valve cavity 114 is also provided at the top of the first valve body 11. A portion of the valve seat 23 is housed within the valve cavity 114, and the portion of the valve seat 23 located outside the valve cavity 114 is fixed to the first valve body 11 by screws. A connecting cavity 115 is also provided at the bottom of the valve cavity 114. The connecting cavity 115 communicates with the first channel 231, the second channel 232, and the water inlet hole 14. The connecting cavity 115 is located at the top of the water inlet channel 1111. During water intake, external cold water flows in from the water inlet port 121, then flows into the connecting cavity 115 through the water inlet channel 1111. Due to the presence of the flow-limiting ring 24 in the first channel 231, a portion of the cold water in the connecting cavity 115 flows into the water outlet channel 1112 through the first channel 231, and this flow rate is constant. If there is a need to increase the flow rate, the second channel 232 is opened, and some of the cold water in the connecting cavity 115 flows into the outlet channel 1112 through the second channel 232. The cold water from the first channel 231 and the second channel 232 merges in the outlet channel 1112, thereby increasing the inflow rate in the outlet channel 1112. If there is a need to replenish the heating water circuit, the water inlet 14 is opened through the water inlet valve 3, and some of the cold water in the connecting cavity 115 flows into the water inlet channel 13 through the water inlet 14.

[0064] In an optional embodiment, such as Figure 3 As shown, the second valve body 12 is also provided with a main inlet / outlet channel 127 that is perpendicular to and communicates with the first receiving pipe 125 and the second receiving pipe 126. After the first insertion pipe 111 is inserted into the first receiving pipe 125, it extends into the main inlet / outlet channel 127 and divides the main inlet / outlet channel 127 into an inlet chamber 1271 and an outlet chamber 1272. The inlet chamber 1271 is connected to the inlet interface 121 and the inlet channel 1111, respectively. The outlet chamber 1272 is connected to the outlet channel 1112 and the bathroom heat exchange interface 122, respectively. After external cold water flows in from the inlet interface 121, it flows through the inlet chamber 1271 to the inlet channel 1111, then flows from the outlet channel 1112 to the outlet chamber 1272, and then flows to the bathroom heat exchange interface 122.

[0065] In an optional embodiment, such as Figure 3As shown, the first water replenishment chamber 131 and the water inlet chamber 1271 are arranged adjacent to each other, and a baffle plate 128 is provided between them to isolate the first water replenishment chamber 131 from the water inlet chamber 1271. As is known from the background art, in related technologies, two water inlet channels 1111 are provided. The first water replenishment chamber 131 is located in the second water inlet channel 1111, which is connected to the second channel 232. In this case, in order to supply water from the water inlet chamber 1271 to the second water inlet channel 1111, the water inlet chamber 1271 and the water inlet channel 1111 need to be connected, which correspondingly increases the number of leakage points. In this embodiment, the water inlet chamber 1271 and the first water replenishment chamber 131 do not need to be connected. Therefore, a baffle plate 1113 is provided between the water inlet chamber 1271 and the first water replenishment chamber 131 to isolate the channels, reducing the number of leakage points in the product and optimizing the product structure.

[0066] In an optional embodiment, such as Figure 3 As shown, a first insertion pipe 111 is provided on the first valve body 11. The first insertion pipe 111 is a straight pipe with a circular cross-section. A partition plate 1113 extending along its axis is provided inside the first insertion pipe 111, dividing the channel inside the first insertion pipe 111 into an inlet channel 1111 and an outlet channel 1112. After the first insertion pipe 111 is inserted into the first receiving pipe 125, the partition plate 1113 extends into the main inlet and outlet channel 127, dividing the main inlet and outlet channel 127 into an inlet chamber 1271 and an outlet chamber 1272. With the above arrangement, the separated inlet channel 1111 and outlet channel 1112 can be formed within a single first insertion pipe 111, resulting in a compact structure and reducing the overall volume of the inlet valve.

[0067] In one optional embodiment, taking the first connector 111 as a straight pipe as an example, the cross-sectional area of ​​the inlet channel 1111 is S1, and the cross-sectional area of ​​the outlet channel 1112 is S2, where S1 / S2 < 1. That is, the inlet flow rate of the inlet channel 1111 is less than the total outlet flow rate of the outlet channel 1112, thus reducing the water resistance of the outlet channel 1112. It should be noted that in another optional embodiment, when the first connector 111 is not a straight pipe, the inlet flow rate of the inlet channel 1111 should also be controlled to be less than the total outlet flow rate of the outlet channel 1112, thereby still achieving the purpose of reducing water resistance.

[0068] like Figure 5As shown, the second channel 232 is bent and consists of two parts. One part surrounds the outer periphery of the first channel 231 and has a crescent-shaped cross-section. The other part is located on the upper side of the first channel 231 and intersects with it. The first channel 231 has a circular cross-section. Together, the first channel 231 and the second channel 232 form a pipe with a circular cross-section. This design ensures sufficient water intake for both the first and second channels 231 while making the structure more compact and efficient.

[0069] Optionally, such as Figure 5 As shown, a partition plate 233 is provided at the intersection of the first channel 231 and the second channel 232 to separate the first channel 231 and the second channel 232. In related technologies, the partition plate 233 is usually not provided, meaning that the first channel 231 and the second channel 232 are connected to the water outlet channel 1112 after they intersect. However, when the output end of the solenoid valve 201 closes the second channel 232, the water flow from the first channel 231 will flow upward into the second channel 232 and impact the solenoid valve 201, causing the solenoid valve 201 to fail and be unable to close the second channel 232. Therefore, in this embodiment, by providing a partition plate 233 at the intersection of the first channel 231 and the second channel 232, the first channel 231 and the second channel 232 can be separated. When the solenoid valve 201 closes the second channel 232, it can prevent the water flow in the first channel 231 from impacting the solenoid valve 201 through the second channel, thus preventing the solenoid valve 201 from failing.

[0070] Specifically, in combination Figure 5 and Figure 6 The first channel 231 has a first outlet 2311 connecting the first channel 231 and the water outlet channel 1112. The first outlet 2311 is located on the side of the valve seat 23 opposite to the second channel 232. The second channel 232 has a second outlet 2321 connecting the second channel 232 and the water outlet channel 1112. The first outlet 2311 and the second outlet 2321 have different orientations, and the second outlet 2321 is connected to the water outlet channel 1112 through the valve cavity 114. Water in the first channel 231 flows directly into the water outlet channel 1112 through the first outlet 2311. Water in the second channel 232 first flows into the valve cavity 114 through the second outlet 2321, and then flows into the water outlet channel 1112 from the valve cavity 114.

[0071] In an optional embodiment, such as Figure 7As shown, the second channel 232 has two second outlets 2321, which are located on opposite sides of the valve seat 23 and are symmetrically arranged about the first outlet 2311. Water in the second channel 232 can flow to the valve cavity 114 through the second outlets 2321, achieving uniform water output from both sides and ensuring sufficient water flow, before flowing from the valve cavity 114 into the outlet channel 1112.

[0072] In this embodiment, as Figure 5 As shown, the partition plate 233 is located above the first channel 231 and is inclined, with the side of the partition plate 233 closer to the first outlet 2311 being higher than the side farther from the first outlet 2311. This arrangement ensures that the side wall of the valve seat 23 has sufficient area to open a second outlet 2321 that communicates with the second channel 232.

[0073] In an optional embodiment, such as Figure 8 As shown, a limiting platform 234 protrudes from the periphery of the first channel 231, and the outlet end of the flow-limiting ring 24 abuts against the limiting platform 234. The flow-limiting ring 24 is limited by the limiting platform 234, so that the flow-limiting ring 24 can be firmly set in the first channel 231, preventing the water flow from impacting the flow-limiting ring 24 and causing it to move. Furthermore, the limiting platform 234 does not interfere with the first channel 231 and the second channel 232, and the bottom end of the flow-limiting ring 24 is supported by the protruding edge at the bottom of the valve cavity 114 to prevent it from falling off.

[0074] Optionally, in this embodiment, as Figure 8 As shown, two symmetrically distributed limiting platforms 234 are provided in the first channel 231, and the two limiting platforms 234 are located on both sides of the first outlet 2311. The two limiting platforms 234 simultaneously limit the flow-limiting ring 24, so that the flow-limiting ring 24 is subjected to uniform force and can be firmly fixed in the first channel 231, preventing the water flow from impacting the flow-limiting ring 24 and causing it to move. In other embodiments, the number of limiting platforms 234 can also be set to three, four or more evenly arranged circumferentially, which can be flexibly set according to actual needs, and no specific limitation is made here.

[0075] In an optional embodiment, such as Figure 2 and Figure 3 As shown, a flow detection component 4 is installed in the passage between the water outlet chamber 1272 and the bathroom heat exchange interface 122. The flow detection component 4 can be an impeller assembly. After the water flows out of the water outlet chamber 1272, it impacts the impeller assembly. The rotation of the impeller assembly converts the magnetic signal into a flow signal through a Hall element, thereby detecting the flow rate of water entering the bathroom water circuit, facilitating precise flow control. The specific structure and working principle of the impeller assembly are existing technologies and will not be described in detail here.

[0076] This embodiment also provides a water circuit module, including a plate heat exchanger, an outlet valve, and the aforementioned inlet valve. The plate heat exchanger is connected between the outlet valve and the inlet valve. In heating mode, the wall-hung boiler supplies hot water to the heating pipes through the outlet valve, and then the water is pumped back to the wall-hung boiler, forming a medium circulation. At this time, the hot water does not pass through the plate heat exchanger. In bathroom mode, the hot water in the wall-hung boiler flows to the hot water channel of the plate heat exchanger through the outlet valve, and external cold water flows to the cold water channel of the plate heat exchanger through the inlet valve. Thus, the cold water in the cold water channel exchanges heat with the hot water in the hot water channel to form warm water, which flows from the bathroom water outlet of the outlet valve to the bathroom pipes to supply water for the bathroom for user use. This part is prior art and will not be described in detail here.

[0077] The water circuit module provided in this embodiment, by setting the aforementioned inlet valve, firstly, can adjust the flow rate according to water usage, enabling faster heating of water to the rated temperature when water usage is low, and timely provision of a large flow rate when water usage is high. The product is not limited by the previous flow-limiting ring 24, ensuring sufficient water supply at the outlets when multiple outlets at the water end are working simultaneously, meeting the user's water needs and improving the user experience. Secondly, it also integrates a water replenishment valve 3, which can increase the inlet flow rate of the bathroom water circuit using the inlet channel 1111 of the inlet valve, while also allowing manual water replenishment to the heating water circuit of the wall-hung boiler, saving the space required to install a separate water replenishment valve 3. Furthermore, it reduces the number of two inlet channels 1111 in related technologies, using only one inlet channel 1111 to achieve the purpose of increasing the flow rate, eliminating one inlet channel 1111 and setting its position as a water replenishment channel 13, simplifying the structure of the inlet valve, reducing processing costs, and improving the product's market competitiveness and economic benefits.

[0078] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A water inlet valve characterized by, The utility model relates to a valve body (1) is provided with water inlet interface (121) and bathroom heat exchange interface (122), be equipped with water inlet channel (1111) with water inlet interface (121) intercommunication and water outlet channel (1112) with bathroom heat exchange interface (122) intercommunication in the valve body (1), water flow regulation assembly (2) including the valve seat (23) of installation on the valve body (1) and the drive piece of installation on the valve seat (23), be equipped with first channel (231) and second channel (232) in the valve seat (23), water inlet channel (1111) with water outlet channel (1112) through first channel (231) always intercommunication, simultaneously through second channel (232) selective intercommunication, the output of drive piece can open or close second channel (232), water supplement valve (3) is installed on the valve body (1), be equipped with water supplement channel (13) and the water supplement hole (14) of intercommunication water supplement channel (13) with water inlet channel (1111) in the valve body (1), water supplement channel (13) with water inlet channel (1111) independent interval arrangement and water pump interface (124) intercommunication on the valve body (1), water supplement valve (3) is used for selective plugging water supplement hole (14). The valve body (1) includes a first valve body (11) and a second valve body (12), the water flow regulation assembly (2), the water supplement valve (3) and the water supplement hole (14) are arranged on the first valve body (11), the water inlet interface (121), the bathroom heat exchange interface (122) and the water pump interface (124) are arranged on the second valve body (12), the first valve body (11) includes a first plug pipe (111) and a second plug pipe (112) arranged in interval and adjacent, the second valve body (12) includes a first receiving pipe (125) and a second receiving pipe (126) arranged in interval and adjacent, the first plug pipe (111) is arranged in the first receiving pipe (125) and is provided with the water inlet channel (1111) and the water outlet channel (1112), and the second plug pipe (112) is arranged in the second receiving pipe (126) and forms part of the water supplement channel (13) together. The first valve body (11) further includes an installation branch pipe (113) arranged at an angle with the second plug pipe (112), the installation branch pipe (113) is provided with an installation cavity (1131) coaxially communicated with the water supplement hole (14), at least part of the water supplement valve (3) is arranged in the installation cavity (1131) and can selectively plug the water supplement hole (14), a communication gap (1132) is formed between the hole side wall of the water supplement hole (14) and the inner side wall of the installation branch pipe (113), and the installation cavity (1131) is directly communicated with the water supplement channel (13) through the communication gap (1132). ​ 2. The inlet valve of claim 1, wherein ​ 3. The inlet valve of claim 2, wherein ​ 4. The inlet valve of claim 2, wherein The second plug-in pipe (112) is plugged into the second receiving pipe (126) and together forms a first water supplement cavity (131), and the second valve body (12) is further provided with a second water supplement cavity (132) in direct communication with the water pump interface (124), and a communication port (133) is formed in the sidewall of the second receiving pipe (126) to communicate the first water supplement cavity (131) and the second water supplement cavity (132), and the first water supplement cavity (131), the communication port (133) and the second water supplement cavity (132) together form the water supplement channel (13).

5. The inlet valve of claim 4, wherein The second valve body (12) is further provided with a water inlet and outlet main channel (127) perpendicular to and in communication with the first receiving pipe (125) and the second receiving pipe (126), the first plug-in pipe (111) extends into the water inlet and outlet main channel (127) after being plugged into the first receiving pipe (125) and divides the water inlet and outlet main channel (127) into a water inlet cavity (1271) and a water outlet cavity (1272), the water inlet cavity (1271) is in communication with the water inlet interface (121) and the water inlet channel (1111) respectively, and the water outlet cavity (1272) is in communication with the water outlet channel (1112) and the bathroom heat exchange interface (122) respectively.

6. The inlet valve of claim 5, wherein The first water supplement cavity (131) is arranged adjacent to the water inlet cavity (1271) and a partition plate (128) is arranged therebetween to separate the first water supplement cavity (131) from the water inlet cavity (1271).

7. The inlet valve of claim 2, wherein The first plug-in pipe (111) is provided with a partition plate (1113) extending along the axis thereof, and the partition plate (1113) divides the channel in the first plug-in pipe (111) into the water inlet channel (1111) and the water outlet channel (1112).

8. The inlet valve of claim 7, wherein, The cross-sectional area of the water inlet channel (1111) is S1 and the cross-sectional area of the water outlet channel (1112) is S2, and S1 / S2<1.

9. The inlet valve according to any one of claims 1 to 8, characterized in that A flow limiting ring (24) is mounted in the first channel (231).

10. The inlet valve according to any one of claims 1 to 8, characterized in that A partition plate (233) is arranged at the intersection of the first channel (231) and the second channel (232), and the partition plate (233) is used to separate the first channel (231) and the second channel (232).

11. The inlet valve of claim 10, wherein The first channel (231) has a first outlet (2311) in communication with the first channel (231) and the water outlet channel (1112), and the second channel (232) has a second outlet (2321) in communication with the second channel (232) and the water outlet channel (1112), and the first outlet (2311) and the second outlet (2321) are not oriented in the same direction.

12. The inlet valve of claim 11, wherein, The second channel (232) has two second outlets (2321) formed on two opposite sides of the valve seat (23), and the two second outlets (2321) are symmetrically arranged about the first outlet (2311).

13. The inlet valve according to any one of claims 1 to 8, characterized in that The driving member is an electromagnetic valve (201).

14. A waterway module characterized by, The water heating system comprises a plate heat exchanger, a water outlet valve and a water inlet valve as claimed in any one of claims 1 to 13, the plate heat exchanger being connected between the water outlet valve and the water inlet valve.

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