One-in-two-out valve and water heater

Abstract

The application discloses a one-in and two-out valve and a water heater. The one-in and two-out valve comprises a valve body, a first water pipe, a second water pipe and a bypass pipe arranged on the valve body; a valve assembly comprising a connecting rod, a sleeve and a plug, the sleeve and the plug being fixedly arranged on the connecting rod in sequence, and the plug being arranged close to one end of the connecting rod; and a driver for driving the connecting rod to reciprocally move. The connecting rod is slidably arranged in the valve body and is used for driving the sleeve to slide in the valve body. The plug is arranged opposite to the second water pipe and is used for adjusting the opening degree of the second water pipe. The sleeve is arranged on one side of the bypass pipe and is used for adjusting the opening degree of the bypass pipe. The application solves the problem that the water inlet valve and the bypass valve in the related art can only change the opening degree of one opening, and the flow regulation efficiency is low.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of household appliances, and particularly relates to a one-in and two-out valve and a water heater. BACKGROUND

[0002] At present, a gas water heater is a household appliance commonly used in daily life. The gas water heater is widely used due to its characteristics of hot water without waiting and large power. Due to the limitation of the heating mode of the gas water heater, there are still some shortcomings: for safety, the cold water in the pipeline needs to be discharged before starting, and the pre-exhaustion check needs to be performed, and the heating start time is relatively long, and the heat exchanger needs to be heat balanced before the hot water suitable for bathing can be discharged, which affects the bathing comfort; during the bathing process, the water temperature will be cold and hot due to the water fluctuation; and the water is closed and then opened, and the situation of hot first and then cold will occur.

[0003] In the related art, the water heater can have a water inlet end, a hot water end and a water outlet end. The water inlet end can be provided with a water inlet valve, which can adjust the flow of cold water entering the water heater from the water inlet end of the water heater. The cold water can flow out of the hot water end of the water heater after being heated by the water heater. The hot water end can be provided with a bypass valve, which can adjust the flow of cold water mixed with the hot water flowing out of the hot water end. The mixed water can flow out of the water outlet end of the water heater for use by the user.

[0004] However, the water inlet valve and the bypass valve in the related art can only change the opening degree of one opening, and the efficiency of flow regulation is low. SUMMARY

[0005] The embodiments of the present application provide a one-in and two-out valve and a water heater to solve the problem that the water inlet valve and the bypass valve in the related art can only change the opening degree of one opening, and to improve the efficiency of flow regulation.

[0006] To achieve the above technical purposes, the present application adopts the following technical solutions:

[0007] In one aspect, the present application provides a one-in and two-out valve, comprising:

[0008] a valve body, the valve body being provided with a first water pipe, a second water pipe and a bypass pipe;

[0009] a valve assembly, the valve assembly comprising a connecting rod, a sleeve and a plug, the sleeve and the plug being fixedly arranged on the connecting rod in sequence, and the plug being arranged close to an end portion of the connecting rod;

[0010] a driver, the driver being used to drive the connecting rod to reciprocally move;

[0011] The connecting rod is slidably arranged in the valve body and used to drive the sleeve to slide in the valve body, the plug is arranged opposite to the second water pipe and used to adjust the opening of the second water pipe, and the sleeve is arranged on one side of the bypass pipe and used to adjust the opening of the bypass pipe.

[0012] In an embodiment of the present application, a partition plate is arranged in the bypass pipe, a bypass water outlet is arranged on the partition plate, and the sleeve is arranged on one side of the partition plate and used to open and close the bypass water outlet during the sliding of the valve body.

[0013] In an embodiment of the present application, the first water pipe forms a first water passage, and the second water pipe forms a second water passage.

[0014] The inside of the sleeve forms a central hole, the central hole is arranged opposite to the second water passage and communicates with the first water passage, the connecting rod passes through the sleeve, and the plug is arranged opposite to the second water passage.

[0015] In an embodiment of the present application, the driver is a linear motor or a pneumatic cylinder, and the connecting rod is connected with a movable part of the driver.

[0016] In an embodiment of the present application, the driver is a rotary motor, and the driver is used to drive the connecting rod to rotate and move relative to the valve body.

[0017] In an embodiment of the present application, the connecting rod has a first end and a second end, the first end of the connecting rod is provided with a threaded part, the connecting rod is connected with the valve body through the threaded part, and the second end of the connecting rod is provided with the plug.

[0018] In an embodiment of the present application, the rotary motor is provided with an inner ring gear on a rotating shaft, an end portion of the connecting rod extending out of the valve body is provided with a tooth structure, the tooth structure is slidably arranged in the inner ring gear and meshes with the inner ring gear.

[0019] In an embodiment of the present application, the valve body is provided with a shaft sleeve, the shaft sleeve is provided with a threaded hole, and the threaded part is threadedly connected in the threaded hole.

[0020] In an embodiment of the present application, the shaft sleeve comprises a mounting part and a limiting part arranged in sequence, the mounting part is embedded in the valve body and fixed with an inner surface of the valve body, and the connecting rod is threadedly arranged on the mounting part; the limiting part is arranged on the mounting part, the limiting part has a through hole for the connecting rod to pass through, a preset interval is formed between the limiting part and the inner surface of the valve body, and the sleeve is rotatably arranged in the preset interval.

[0021] In an embodiment of the present application, a sealing ring is arranged between the shaft sleeve and the valve body.

[0022] In an embodiment of the present application, a groove is arranged on the outer surface of the shaft sleeve, and the sealing ring is arranged in the groove.

[0023] In an embodiment of the present application, a limiting step surface is further arranged in the valve body, one end of the sleeve is in abutment with the shaft sleeve, and the other end of the sleeve is in abutment with the limiting step surface.

[0024] In an embodiment of the present application, the sleeve is bonded on the connecting rod, or the sleeve is detachably arranged on the connecting rod.

[0025] In an embodiment of the present application, an annular water retaining platform is arranged in the second water passage, a first inclined surface is arranged on the water retaining platform to form a conical hole structure, and a second inclined surface is arranged on the plug to form a conical head structure.

[0026] The present application also provides a water heater, which comprises a water heater body, the water heater body comprising a water inlet end, a hot water end and a water outlet end, and further comprising the one-inlet and two-outlet valve, the one-inlet and two-outlet valve being connected between the water inlet end and the water outlet end.

[0027] The one-inlet and two-outlet valve and the water heater provided by the present application can realize the adjustment of the flow rates of two output water flows through a single one-inlet and two-outlet valve, and improve the efficiency of flow rate adjustment.

[0028] When the one-inlet and two-outlet valve is used in the water heater, the flow rate of cold water flowing into the water inlet end of the water heater can be reduced and the flow rate of cold water mixed with hot water from the hot water end of the water heater can be increased when the user uses water twice in a short time, so as to increase the minimum temperature of water flowing out of the water outlet end of the water heater and decrease the maximum temperature of water flowing out of the water outlet end of the water heater, thereby improving the showering experience of the user. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative labor based on these drawings.

[0030] The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the principles of the application.

[0031] Figure 1 A schematic view of a water heater in accordance with an embodiment of the application;

[0032] Figure 2 A schematic view of a water heater in accordance with another embodiment of the application;

[0033] Figure 3 A schematic view of a water heater in accordance with an embodiment of the application;

[0034] Figure 4 A front view of a one-in-two-out valve in accordance with an embodiment of the application;

[0035] Figure 5 A Figure 4 A partial exploded view of the one-in-two-out valve shown;

[0036] Figure 6 A Figure 4 An exploded view of the valve core assembly shown;

[0037] Figure 7 A Figure 4 A perspective longitudinal section view of the one-in-two-out valve shown in a first state;

[0038] Figure 8 A Figure 4 A longitudinal section view of the one-in-two-out valve shown in a second state;

[0039] Figure 9 A Figure 4 A transverse section view of the one-in-two-out valve shown in a second state;

[0040] Figure 10 A section view of a second one-in-two-out valve in accordance with an embodiment of the application in a first state;

[0041] Figure 11 A Figure 10 A section view of the one-in-two-out valve shown in a second state;

[0042] Figure 12 A transverse section view of a third one-in-two-out valve in accordance with an embodiment of the application in a first state;

[0043] Figure 13 A Figure 10 A transverse section view of the one-in-two-out valve shown in a second state;

[0044] Figure 14 A front view of a further one-in-two-out valve in accordance with an embodiment of the application;

[0045] Figure 15 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application; Figure 14 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application;

[0046] Figure 16 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application; Figure 15 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application;

[0047] Figure 17 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application; Figure 15 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application;

[0048] Figure 18 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application; Figure 14 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application;

[0049] Figure 19 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application; Figure 14 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application;

[0050] Figure 20 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application; Figure 14 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application;

[0051] Figure 21 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application; Figure 14 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application;

[0052] Figure 22 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application; Figure 21 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application;

[0053] Figure 23 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application;

[0054] Figure 24 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application; Figure 23 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application;

[0055] Figure 25 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application; Figure 23 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application;

[0056] Figure 26 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application; Figure 23 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application;

[0057] Figure 27 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application; Figure 21 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application;

[0058] Figure 28 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application; Figure 21 Figure 1 1 is a partial exploded view of a further one-in-two-out valve provided in accordance with embodiments of the present application;

[0059] Figure 29 Figure 2 is a cross-sectional view of the one-in-two-out valve in the second state according to the second embodiment of the present application;

[0060] Figure 30 Figure 3 is a cross-sectional view of the one-in-two-out valve in the first state according to the second embodiment of the present application; Figure 29 Figure 4 is a cross-sectional view of the one-in-two-out valve in the second state according to the second embodiment of the present application.

[0061] Legend of reference numerals:

[0062] 1. valve body; 11. closed end; 12. first water passage; 13. second water passage; 14. bypass water outlet; 15. first water pipe; 16. second water pipe; 17. bypass pipe; 18. cover plate; 181. mounting hole; 19. cylinder body;

[0063] 2. valve core assembly;

[0064] 21. connecting rod;

[0065] 22. sleeve; 221. central hole; 222. communication groove; 223. first communication groove; 224. second communication groove; 225. first end face; 226. second end face; 227. mounting groove; 2271. first part; 2272. second part;

[0066] 23. mounting rod;

[0067] 24. plug;

[0068] 31. mounting plate; 32. water blocking platform;

[0069] 4. shaft sleeve; 41. mounting part; 42. limiting part;

[0070] 5. driver;

[0071] 61. memory; 62. time device;

[0072] 7. controller;

[0073] 8. sealing ring;

[0074] 9. valve; 91. one-in-one-out valve; 92. one-in-two-out valve;

[0075] 10. water heater; 101. water inlet end; 102. hot water end; 103. water outlet end; 104. water inlet branch pipe; 105. water outlet branch pipe; 106. bypass branch pipe; 107. water outlet main pipe; 108. water inlet main pipe.

[0076] The above drawings have shown the specific embodiments of the present application, which will be described in more detail hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application by any means, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0077] In gas water heaters using this technology, when a user uses water, the gas water heater detects the water flow signal, first turning on the fan for pre-purge, expelling exhaust gases from the water heater through the flue. After the air pressure switch is detected and closed, the gas valve is opened for ignition and combustion. The heated water then flows out of the water heater. It takes approximately 3-5 seconds from the user turning on the water to the water heater igniting and burning. From the time the user turns on the water to the time the constant-temperature hot water flows out in the shower, it generally takes 20-30 seconds.

[0078] However, when a gas water heater is used again after a short period of inactivity (i.e., when the user uses water twice in a short time), some water remains in the outlet of the water heater after the previous use. Therefore, the hotter water will flow out of the outlet first. Also, as mentioned above, the fan needs to perform pre-cleaning before ignition, and ignition and combustion take 3-5 seconds. Therefore, after the residual hot water flows out, the cooler water will flow out of the outlet. Once the water heater has completed ignition and combustion, water at the target temperature will flow out of the outlet.

[0079] Figure 1 This is a schematic diagram of a water heater provided in an embodiment of this application. Figure 2 This is a schematic diagram of another water heater provided in an embodiment of this application. Figure 1 and Figure 2 The arrows in the diagram indicate the direction of liquid flow. (Reference) Figure 1 and Figure 2 The water heater 10 may have an inlet 101, a hot water outlet 102, and an outlet 103.

[0080] For example, the inlet end 101 may have an inlet branch pipe 104, the hot water end 102 may have an outlet branch pipe 105, and the outlet end 103 may have an outlet main pipe 107. A bypass branch pipe 106 may be connected between the inlet branch pipe 104 and the outlet branch pipe 105. When the water heater 10 is working, cold water can be delivered through the inlet main pipe 108. The output end of the inlet main pipe 108 may be connected to the inlet branch pipe 104 and the bypass branch pipe 106 respectively. This allows a portion of the cold water to enter the inlet end 101 of the water heater 10 through the inlet branch pipe 104, and a portion of the cold water to mix with the hot water flowing out of the outlet branch pipe 105 through the bypass branch pipe 106. The mixed water can then flow to the user through the outlet main pipe 107.

[0081] However, in actual use, when a user uses water a second time, increasing the amount of cold water mixed with the hot water in the hot water outlet 102 can lower the temperature of the water flowing out of the water heater 10's outlet 103. Conversely, reducing the amount of cold water flowing into the water heater 10 can improve the heat exchange efficiency of the water heater 10's heat exchanger, thereby increasing the temperature of the water flowing out of the water heater 10's outlet 103. This ensures that the water temperature flowing out of the water heater 10's outlet 103 approaches the target temperature when the user uses water a second time, thus improving the user's showering experience.

[0082] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0083] Example 1

[0084] Figure 3 A schematic diagram of a one-inlet, two-outlet valve provided in an embodiment of this application. (Reference) Figures 1-3 The one-inlet, two-outlet valve provided in this application embodiment may include a memory 61, a timer 62, valves 9, and a controller 7. The memory 61 may be installed in the water heater 10 and can record the user's last water usage end time. The timer 62 may be installed in the water heater 10 and can obtain the user's current water usage start time. At least some of the valves 9 may be located at the inlet end 101 and can adjust the water flow rate into the inlet end 101. At least some of the valves 9 may be located at the hot water end 102 and can adjust the water flow rate into the hot water end 102. The controller 7 can calculate the time interval between the user's current water usage start time and the user's last water usage end time, and can control the valves 9 when the time interval is less than a preset time period, so that liquid flows into the water heater 100's inlet end 101 at a smaller flow rate and into the water heater 100's hot water end 102 at a larger flow rate.

[0085] Specifically, the memory 61 can acquire the time of the timer 62 when the user closes the valve 9 of the water outlet 103 (or shower head) of the water heater 10, and save this time as the user's last water usage end time. The memory 61 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory 61 (SRAM), electrically erasable programmable read-only memory 61 (EEPROM), erasable programmable read-only memory 61 (EPROM), programmable read-only memory 61 (PROM), read-only memory 61 (ROM), magnetic storage 61, flash memory 61, magnetic disk or optical disk.

[0086] In addition, the time device 62 can obtain the current time when the user opens the valve 9 of the outlet end 103 of the water heater 10, and the current time is the current water use start time of the user. The time device 62 can be a timer which needs to be calibrated by the user regularly. The time device 62 can also obtain the current time from the server after sending a request message to the server, and the server returns the current time obtained. The time device can also obtain the current time from the network.

[0087] In addition, the controller 7 can obtain the last water use end time sent by the memory 61 and the current water use start time sent by the time device 62 when the user opens the valve 9 of the outlet end 103 of the water heater 10. The controller 7 can calculate the difference between the current water use start time and the last water use end time to obtain the time interval of the adjacent two water uses of the user. The controller 7 can compare the calculated time interval with the preset time period, and if the time interval is less than the preset time period, the controller 7 can control the valve 9 to reduce the water flow into the inlet end 101 and increase the water flow into the hot water end 102. If the time interval is greater than the preset time period, the water flow into the inlet end 101 and the water flow into the hot water end 102 remain unchanged.

[0088] It should be noted that the one-in-two-out valve provided in the present application can have at least two states. In the first state, the liquid flows into the inlet end 101 of the water heater 10 at a large flow rate and flows into the hot water end 102 of the water heater 10 at a small flow rate. That is, the large inlet water amount and small bypass amount state. In the second state, the liquid flows into the inlet end 101 of the water heater 10 at a small flow rate and flows into the hot water end 102 of the water heater 10 at a large flow rate. That is, the small inlet water amount and large bypass amount state. The large and small mentioned in this paragraph are compared between the two states. That is, compared with the first state, the water amount flowing into the inlet end 101 of the water heater 10 is reduced and the water amount flowing into the hot water end 102 of the water heater 10 is increased. When the user uses water twice, the one-in-two-out valve can operate in the second state for a period of time. After the one-in-two-out valve operates for a period of time, the one-in-two-out valve can be switched from the second state to the first state. The period of time during which the one-in-two-out valve operates in the second state can be a preset value. Alternatively, the one-in-two-out valve can be switched from the second state to the first state after ignition and heating.

[0089] Optionally, the controller 7 can control the valve 9 to make the liquid flow into the inlet end 101 of the water heater 10 at a small flow rate and flow into the hot water end 102 of the water heater 10 at a small flow rate when the operating state of the water heater 10 is stable, the heating state of the water heater 10 is at a maximum value, and the temperature of the outlet end 103 of the water heater 10 is less than a preset temperature value.

[0090] Specifically, the two-in-one-out valve provided by the application can also have a third state: liquid flows into the water inlet end 101 of the water heater 10 at a small flow rate, and flows into the hot water end 102 of the water heater 10 at a small flow rate. That is, a small water inlet amount and a small bypass amount state. When the water heater 10 runs in the first state for a period of time or the water outlet end 103 of the water heater 10 flows out hot water at a stable temperature, and the proportional valve of the water heater 10 is adjusted to the maximum gear, but the temperature detector arranged at the water outlet end 103 of the water heater 10 measures that the outlet water temperature of the water heater 10 is lower than the preset temperature value, the two-in-one-out valve can be converted from the first state to the third state to increase the temperature of the water outlet end 103 of the water heater 10.

[0091] Reference Figure 1 Optionally, the valve 9 can be arranged in the following possible ways:

[0092] In one possible implementation, referring to Figure 1 , the valve 9 can be multiple, and each valve 9 can be a one-in-one-out valve 91. The one-in-one-out valve 91 can have a first water passage and a water outlet, and can change the flow rate of the pipeline connected with the openings by adjusting the opening degree of the water outlet or the first water passage. The valve 9 can include two one-in-one-out valves 91. One one-in-one-out valve 91 can be arranged on the bypass branch pipe 106 to adjust the flow rate of the bypass branch pipe 106, and the other one-in-one-out valve 91 can be arranged on the water inlet main pipe 108 or the water inlet branch pipe 104. When the one-in-one-out valve 91 is arranged on the water inlet main pipe 108 as shown in Figure 1 , the one-in-one-out valve 91 can adjust the flow rate of the water inlet main pipe 108. When the one-in-one-out valve 91 is arranged on the water inlet branch pipe 104, the one-in-one-out valve 91 can adjust the flow rate of the water inlet branch pipe 104. Of course, the valve 9 can also include three one-in-one-out valves 91, and the bypass branch pipe 106, the water inlet branch pipe 104 and the water inlet main pipe 108 can be respectively provided with one one-in-one-out valve 91.

[0093] In another possible implementation, referring to Figure 2 , the valve 9 can include at least one two-in-one-out valve 92. The two-in-one-out valve 92 can have a first water passage and two water outlets, and can change the flow rate of the pipeline connected with the openings by adjusting the opening degree of the first water passage and / or the water outlets. The first water passage can be connected with the water inlet main pipe 108, and the two water outlets can be respectively connected with the water inlet branch pipe 104 and the bypass branch pipe 106.

[0094] The two-way valve 92 can adjust the opening degree of two openings, or can adjust the opening degree of three openings. In order to better control the flow, when the two-way valve 92 can only adjust the opening degree of two openings, a one-way valve 91 is arranged on the upstream pipeline or the downstream pipeline of the two-way valve 92. Exemplarily, when the two-way valve 92 can only adjust the opening degree of two openings, a one-way valve 91 can be arranged on the upstream of the two-way valve 92. When the two-way valve 92 can only adjust the opening degree of one outlet and one inlet, and the outlet is communicated with the water inlet branch pipe 104, a one-way valve 91 can be arranged on the bypass branch pipe 106. Similarly, when the two-way valve can only adjust the opening degree of one outlet and one inlet, and the outlet is communicated with the bypass branch pipe 106, a one-way valve 91 can be arranged on the water inlet branch pipe 104.

[0095] Figures 4-28 Five structures of the two-way valve 92 are shown, and possible implementation modes of the two-way valve 92 are described below with reference to Figures 4-28 For ease of description, the direction indicated by the arrow X is the left end of the two-way valve, and the other end is the right end of the two-way valve; the direction indicated by the arrow Y is the front end of the two-way valve, and the other end is the rear end of the two-way valve; the direction indicated by the arrow Z is the upper end of the two-way valve, and the other side is the lower end of the two-way valve.

[0096] Figure 4 A front view of the two-way valve 92 provided by the embodiment of the present application is shown. As shown in Figure 4 , the two-way valve 92 can include a valve body 1, which can have an axial first water passage 12 and a closed end 11, that is, one end of the valve body 1 in the axial direction is closed for mounting the driver 5, and the other end of the valve body 1 in the axial direction has an opening to form the first water passage 12. Exemplarily, Figure 4 , the valve body 1 can include a cylinder 19 and a cover plate 18. The cylinder 19 can be arranged in the vertical direction, and both the upper end and the lower end of the cylinder 19 can have an opening. The cover plate 18 can cover the opening of the cylinder 19 located at the upper end to form the closed end 11 at the upper end of the cylinder 19, and the lower end of the cylinder 19 forms the first water passage 12. Of course, the valve body 1 can also have other structures to form the first water passage 12 and the closed end 11, and the embodiment of the present application here only takes the cylinder 19 structure as an example and does not make specific limitations. Figure 4

[0097] As shown in Figures 4-28 ​The side wall of the valve body 1 between the first water passage 12 and the closed end 11 of the valve body 1 can be provided with a second water passage 13 and a bypass water outlet 14. The valve core assembly 2 is arranged in the valve body 1 and movable relative to the valve body 1, and the valve core assembly 2 is used to change the opening degree of two of the second water passage 13, the bypass water outlet 14 and the first water passage 12. Figures 4-28 The valve body 1 is taken as an example.

[0098] The valve core assembly 2 is taken as an example. Figures 4-13 The valve core assembly 2 is taken as an example. Figures 14-28 The valve core assembly 2 is taken as an example.

[0099] The valve core assembly 2 is taken as an example. Figures 4-13 The second water passage 13 and the bypass water outlet 14 can be arranged on the side wall of the barrel 19, and the valve core assembly 2 can include a sleeve 22. Figures 4-11 The sleeve 22 can change the opening degree of the second water passage 13 and the bypass water outlet 14 by rotating in the valve body 1, or the sleeve 22 can change the opening degree of the second water passage 13 and the bypass water outlet 14 by moving in the valve body 1. Figure 12 Figure 13 The valve core assembly 2 is taken as an example.

[0100] The valve core assembly 2 is taken as an example. Figures 4-11 In one example, the second water passage 13 and the bypass water outlet 14 are arranged at different positions in the circumferential direction of the side wall of the barrel 19. Figures 4-11 The second water passage 13 is arranged on the left side of the barrel 19, and the bypass water outlet 14 is arranged on the right side of the barrel 19.

[0101] The sleeve 22 is rotatably arranged in the accommodating space formed by the barrel 19 and the cover plate 18, and the rotation axis of the sleeve 22 is arranged along the axis of the barrel 19. That is, the rotation axis of the sleeve 22 is parallel to or coincides with the axis of the barrel 19. The inside of the sleeve 22 can have a central hole 221 opposite and communicating with the first water passage 12 of the valve body 1. The side wall of the sleeve 22 has a communication groove 222 communicating with the central hole 221, which can be used to be opposite to the second water passage 13 so that the communication groove 222 communicates with the second water passage 13. The communication groove 222 can be used to be opposite to the bypass water outlet 14 so that the communication groove 222 communicates with the bypass water outlet 14.

[0102] ​Specifically, the communication groove 222 can be in communication with the center hole 221 to communicate the second water inlet 13, the bypass water outlet 14, and the first water inlet 12 of the valve body 1. The communication groove 222 can have the following possible configurations:

[0103] In one possible implementation, Figure 6 To Figure 4 the exploded view of the valve core assembly 2, Figure 7 To Figure 4 the longitudinal sectional view of the two-way inlet valve 92 in the first state, Figure 8 To Figure 4 the longitudinal sectional view of the two-way inlet valve 92 in the second state, Figure 9 To Figure 4 the transverse sectional view of the two-way inlet valve 92 in the second state. Referring to Figures 6-9 , the communication groove 222 can include at least a first communication groove 223 and a second communication groove 224. The first communication groove 223 and the second communication groove 224 can have a predetermined interval in the circumferential direction of the sleeve 22. The first communication groove 223 can be used to communicate the second water inlet 13, and the second communication groove 224 can be used to communicate the bypass water outlet 14.

[0104] Figures 7-9 The hollow arrow in the middle indicates the flow direction of the liquid. Referring to Figures 7-9 , the first water inlet 12 of the valve body 1 can be the first water inlet of a two-way inlet valve, and the first water inlet 12 of the valve body 1 can be in communication with the water inlet main pipe 108 through the first water pipe 15; the second water inlet 13 can be the second water inlet of a two-way inlet valve, and the first water inlet 12 of the valve body 1, the center hole 221 of the sleeve 22, the first communication groove 223 of the sleeve 22, and the second water inlet 13 can form a water inlet flow channel, and the second water inlet 13 can be in communication with the water outlet branch pipe 105 in Figure 2 through the second water pipe 16. The bypass water outlet 14 can be the bypass water outlet of a two-way inlet valve, and the first water inlet 12 of the valve body 1, the center hole 221 of the sleeve 22, the second communication groove 224 of the sleeve 22, and the bypass water outlet 14 can form a bypass flow channel, and the bypass water outlet 14 can be in communication with the bypass branch pipe 106 in Figure 2 through the bypass pipe 17.

[0105] Of course, the second water inlet 13 can also be the first water inlet of a two-way inlet valve, and the first water inlet 12 of the valve body 1 can be the second water inlet of a two-way inlet valve. The second water inlet 13, the first communication groove 223 of the sleeve 22, the center hole 221 of the sleeve 22, and the first water inlet 12 of the valve body 1 can form a water inlet flow channel, and the second water inlet 13 can be in communication with the water outlet branch pipe 105 in Figure 2The bypass outlet 14 can be a bypass outlet of a two-way valve, the second water passage 13, the central hole 221 of the sleeve 22, the second communication groove 224 of the sleeve 22 and the bypass outlet 14 can form a bypass flow channel, and the bypass outlet 14 can be communicated with the bypass pipe 17 through the bypass pipe 17. Figure 2 The bypass branch pipe 106 in the bypass pipe 17 is communicated with the bypass outlet 14. In this way, the flow mode is not described here.

[0106] Hereinafter, the flow mode shown in the drawings will be described, that is, the second water passage 13 can be a second water passage of a two-way valve, the bypass outlet 14 can be a bypass outlet of a two-way valve, and the first water passage 12 of the valve body 1 can be a first water passage of a two-way valve. Figures 7-9 Referring to

[0107] , when the two-way valve 92 is in the first state, the first communication groove 223 can be directly opposite the second water passage 13, and the direct opposite area can be at a larger value. That is, the area of the projection of the first communication groove 223 along the radial direction of the cylinder body 19 on the side wall of the cylinder body 19 coinciding with the second water passage 13 is at a larger value. When the two-way valve 92 is in the first state, the second communication groove 224 can be directly opposite the bypass outlet 14, and the direct opposite area can be at a smaller value. That is, the area of the projection of the first communication groove 223 along the radial direction of the cylinder body 19 on the side wall of the cylinder body 19 coinciding with the second water passage 13 is at a smaller value. Figure 7 Referring to

[0108] and Figure 8 , when the two-way valve 92 is in the second state, the first communication groove 223 can be directly opposite the second water passage 13, and the direct opposite area can be at a smaller value. That is, the area of the projection of the first communication groove 223 along the radial direction of the cylinder body 19 on the side wall of the cylinder body 19 coinciding with the second water passage 13 is at a smaller value. When the two-way valve 92 is in the second state, the second communication groove 224 can be directly opposite the bypass outlet 14, and the direct opposite area can be at a larger value. That is, the area of the projection of the second communication groove 224 along the radial direction of the cylinder body 19 on the side wall of the cylinder body 19 coinciding with the bypass outlet 14 is at a larger value. Figure 9 It should be noted that the area of the bypass outlet 14 can be larger than the area of the second communication groove 224 as shown in

[0109] , of course, the area of the bypass outlet 14 can also be smaller than the area of the second communication groove 224. Figures 7-9 Referring to

[0110] , the bypass outlet 14 can be a bypass outlet of a two-way valve, the second water passage 13, the central hole 221 of the sleeve 22, the second communication groove 224 of the sleeve 22 and the bypass outlet 14 can form a bypass flow channel, and the bypass outlet 14 can be communicated with the bypass pipe 17 through the bypass pipe 17. Figure 8, in order not to excessively affect the water inflow of the water heater 10 in the second state, i.e. in order to ensure the flow rate of the water inflow channel in the second state, the first communication groove 223 can be lower than the second communication groove 224 at the position where the first communication groove 223 communicates with the second water outlet 13. That is, in the second state, only the liquid higher than the lower end of the second communication groove 224 can flow into the bypass pipe 17 through the second communication groove 224 and the bypass water outlet 14.

[0111] Specifically, referring to Figure 9 , in the second state, part of the first communication groove 223 is shielded by the inner surface of the cylinder 19. The part of the first communication groove 223 not shielded by the inner surface of the cylinder 19 can be opposite and communicate with the second water outlet 13. Referring to Figure 8 , the lower end of the part of the first communication groove 223 not shielded by the inner surface of the cylinder 19 can be lower than the second communication groove 224. The upper end of the part of the first communication groove 223 can be higher than the lower end of the second communication groove 224 and lower than the upper end of the second communication groove 224, as shown in Figure 8 . Of course, the upper end of the part of the first communication groove 223 can also be lower than the lower end of the second communication groove 224.

[0112] In order to achieve that the part of the first communication groove 223 not shielded by the inner surface of the cylinder 19, i.e. the part of the first communication groove 223 opposite the second water outlet 13, is lower than the second communication groove 224 in the second state, the shape of the first communication groove 223 can be set as follows in the embodiments of the present application:

[0113] Referring to Figure 5 , optionally, the highest point of at least part of the first communication groove 223 can gradually tilt upward along a preset direction. The preset direction can be the rotation direction of the sleeve 22 from the first state to the second state. Exemplarily, Figure 5 , the arrow W represents the counterclockwise direction. Referring to Figure 2 , the sleeve 22 can rotate from the first state to the second state along the W direction, i.e. the counterclockwise direction. The upper edge line of the first communication groove 223 can gradually tilt upward along the counterclockwise direction.

[0114] , in order to increase the opening size of the first communication groove 223, at least part of the first communication groove 223 can be arranged at the upper portion of the side wall of the sleeve 22, and at least part of the first communication groove 223 can be arranged at the lower portion of the side wall of the sleeve 22. Exemplarily, Figure 5 , the left side edge line of the first communication groove 223 can be arc-shaped, and the center of the arc can be located at the right side of the center of the arc. That is, the first communication groove 223 can be a figure symmetrical about the central axis of the sleeve 22, and the center of the arc can be located on the central axis plane of the sleeve 22. The central axis plane of the sleeve 22 can be parallel to the bottom surface of the sleeve 22, and the distance from the upper end surface of the sleeve 22 to the central axis plane is equal to the distance from the lower end surface of the sleeve 22 to the central axis plane.

[0115] Referring to Figure 7 and Figure 8 Optionally, in order to make the sleeve 22 more stably rotate in the barrel 19, the outer surface of the side wall of the sleeve 22 can be in contact with the inner surface of the barrel 19, and the outer surface of the sleeve 22 can be adapted to the inner surface of the barrel 19. In order to make the outer surface of the side wall of the sleeve 22 in contact with the inner surface of the first water pipe 15, the upper end surface of the sleeve 22 can be higher than the highest end of both the second water passage 13 and the bypass water outlet 14. The lower end surface of the sleeve 22 can be lower than the lowest end of both the second water passage 13 and the bypass water outlet 14.

[0116] Continuing to refer to Figures 5-8 In order to drive the sleeve 22 to rotate, optionally, the sleeve 22 can include a side wall and a top wall, and the top wall of the sleeve 22 can be fixed with a connecting rod 21. The connecting rod 21 can pass through the cover plate 18 and be connected with the driver 5 arranged outside the cover plate 18. The driver 5 can drive the connecting rod 21 to rotate to make the sleeve 22 rotate. The driver 5 can be in communication connection with the controller 7 mentioned above. The driver 5 can be a motor, and the motor can have a motor shaft, which can be directly connected with the connecting rod 21 by welding, interference fit, coupling or the like, or indirectly connected with the connecting rod 21 through a speed reducer or the like.

[0117] In order to make the connecting rod 21 stably rotate, a shaft sleeve 4 can be accommodated in the accommodating space formed by the cover plate 18 and the barrel 19. The outer surface of the shaft sleeve 4 can be fixed with the inner surface of the barrel 19, and the upper surface of the shaft sleeve 4 can be in abutment with the cover plate 18. The connecting rod 21 can pass through the shaft sleeve 4 and can rotate relative to the shaft sleeve 4. The outer surface of the shaft sleeve 4 can be provided with a groove, and the groove can accommodate a sealing ring 8 between the inner surface of the barrel 19 to achieve sealing between the shaft sleeve 4 and the inner surface of the barrel 19.

[0118] Referring to Figure 7 and Figure 8 In order to limit the axial position of the sleeve 22 in the barrel 19, the top wall of the sleeve 22 can be in abutment with the lower surface of the shaft sleeve 4. The lower end of the barrel 19 can be fixed with the first water pipe 15, which can be coaxially arranged with the barrel 19. The diameter of the first water pipe 15 can be smaller than that of the barrel 19, so that the inner surface of the first water pipe 15 can be closer to the axis of the barrel 19, thereby forming a limiting step surface for limiting the lower end surface of the sleeve 22.

[0119] In order to meet the requirement that the connecting rod 21 rotates relative to the valve body 1 while also moving, the end of the connecting rod 21 extending out of the valve body 1 is provided with a tooth structure, and the rotating shaft of the rotating motor is provided with an inner ring gear, the tooth structure is slidingly arranged in the inner ring gear and engaged with the inner ring gear, and the tooth structure cooperates with the ring gear structure to meet the requirement that the connecting rod 21 rotates and also meet the requirement that the connecting rod 21 slides during rotation. Correspondingly, the shaft sleeve 4 is provided with an internal thread, and the connecting rod 21 is provided with an external thread, and the connecting rod 21 is threadedly connected to the shaft sleeve 4.

[0120] Figure 10 A cross-sectional view of a second one-in-two-out valve 92 provided by an embodiment of the present application in a first state, Figure 11 For Figure 10 A cross-sectional view of a second one-in-two-out valve 92 provided by an embodiment of the present application in a second state. Figure 10 And Figure 11 In another example, the second water inlet 13 and the bypass water outlet 14 are arranged at different axial positions of the side wall of the barrel 19. Figure 10 And Figure 11 In the second water inlet 13 is arranged at the lower end of the barrel 19 and the bypass water outlet 14 is arranged at the upper end of the barrel 19 is shown as an example.

[0121] The sleeve 22 is slidingly arranged in the accommodating space formed by the barrel 19 and the cover plate 18, and the sleeve 22 can slide along the axial direction of the barrel 19. The inside of the sleeve 22 can have a central hole 221 which can be opposite to and communicate with the first water inlet 12 of the valve body 1. The side wall of the sleeve 22 can have a first communication groove 223 and a second communication groove 224 which communicate with the central hole 221. The first communication groove 223 and the second communication groove 224 can have a preset interval in the axial direction of the sleeve 22. The first communication groove 223 can be used to communicate with the second water inlet 13, and the second communication groove 224 can be used to communicate with the bypass water outlet 14.

[0122] In addition, the sleeve 22 can include a top wall and a side wall. The top wall of the sleeve 22 can be connected with the connecting rod 21, and the connecting rod 21 can pass through the cover plate 18 and move along the axial direction of the barrel 19 relative to the cover plate 18. The part of the connecting rod 21 outside the cover plate 18 can be connected with the driver 5. The driver 5 can be in communication with the controller 7 mentioned above. The driver 5 can be a linear motor, a pneumatic cylinder or other device that can output an axial force. The driver 5 can also be a rotating motor and a conversion mechanism that converts torque into linear motion.

[0123] In another possible implementation of the communication groove 222, Figure 12 A transverse cross-sectional view of a third one-in-two-out valve provided by an embodiment of the present application in a first state, Figure 13For Figure 10 A transverse sectional view of the one-in-two-out valve in the second state is shown. Reference is made to Figure 12 and Figure 13 At least part of the cross-sectional shape of the sleeve 22 can be semi-circular. The inner surface of the sleeve 22 can be formed with a central hole 221 communicating with the first water passage 12. The sleeve 22 can have a circumferential first end surface 225 and a second end surface 226, that is, one end of the sleeve 22 in the circumferential direction can have the first end surface 225, and the other end of the sleeve 22 in the circumferential direction can have the second end surface 226. A communication groove 222 (not shown in Figure 12 and Figure 13 ) can also be formed between the first end surface 225 and the second end surface 226 of the sleeve 22.

[0124] The circumference of the inner surface between the second end of the second water passage 13 of the cylinder 19 and the first end of the bypass water outlet 14 of the cylinder 19 can be smaller than the circumference of the outer surface of the sleeve 22 (i.e., the circumference between the first end surface 225 of the sleeve 22 and the second end surface 226 of the sleeve 22).

[0125] Specifically, the outer surface of the sleeve 22 can be fitted with the inner surface of the cylinder 19 and can rotate relative to the inner surface of the cylinder 19. When the sleeve 22 is in the first state as shown in Figure 12 , the sleeve 22 can block a small part of the second water passage 13 or not block the second water passage 13, that is, the projection of the sleeve 22 on the cylinder 19 in the radial direction of the cylinder 19 does not fall within the second water passage 13 or only a small part falls within the second water passage 13, so that the opening degree of the second water passage 13 is large; the sleeve 22 can block at least part of the bypass water outlet 14, so that the opening degree of the bypass water outlet 14 is small.

[0126] When the sleeve 22 is in the second state as shown in Figure 13 , the sleeve 22 can block at least part of the second water passage 13, that is, the projection of the sleeve 22 on the cylinder 19 in the radial direction of the cylinder 19 falls at least partially within the second water passage 13, so that the opening degree of the second water passage 13 is small; the sleeve 22 can block a small part of the bypass water outlet 14 or not block the bypass water outlet 14, that is, the projection of the sleeve 22 on the cylinder 19 in the radial direction of the cylinder 19 does not fall within the bypass water outlet 14 or only a small part falls within the bypass water outlet 14, so that the opening degree of the bypass water outlet 14 is large.

[0127] In another embodiment, the control of the bypass water outlet 14 by the sleeve 22 sliding in the cylinder 19 can also be in the manner of Figure 29 and Figure 30 , that is, the sleeve 22 is arranged on one side of the bypass pipe 17 and is used to adjust the opening degree of the bypass water outlet 14 in the bypass pipe 17.

[0128] Specifically, as shown in FIG.Figure 29 As shown, in the first state, the second water inlet 13 is at its maximum opening, while the bypass outlet 14 is closed and at its minimum opening. Figure 30 As shown, as the drive 5 drives the sleeve 22 downward in the cylinder 19, the upper edge of the sleeve 22 will gradually expose the bypass outlet 14, thereby adjusting the opening of the bypass outlet 14. Figure 29 and 30 The dashed arrow indicates the path of the water flow.

[0129] The bypass pipe is equipped with a baffle (unmarked), and a bypass outlet 14 is provided on the baffle. The sleeve 22 is located on one side of the baffle and is used to open and close the bypass outlet during the sliding of the valve body. The baffle blocks the opening of the bypass pipe 15 and leaves the bypass outlet 14 exposed. The sleeve 22 moves up and down on one side of the baffle to adjust the opening degree of the bypass outlet 14.

[0130] In addition, to adjust the opening of the second water inlet 13, a connecting rod 21 passes through the sleeve 22, and a plug 24 is provided at the end of the connecting rod 21. The plug 24 is arranged opposite to the second water inlet 13. As the connecting rod 21 moves the sleeve 22 up and down, the plug 24 moves closer to or further away from the second water inlet 13, thereby changing the opening of the second water inlet 13.

[0131] The following is for reference. Figures 14-22 This describes a one-inlet, two-outlet valve that can change the three openings. Using a one-inlet, two-outlet valve that can change the three openings has the advantage of changing a large range of flow with a small range of drive.

[0132] The similarity between the one-in-two-out valve with two openings described above and the one-in-two-out valve with three openings described below lies in the fact that the valve core assembly 2 may include a sleeve 22, which can change the opening degree of the second water inlet 13 and the bypass water outlet 14 by rotating within the cylinder 19. The difference lies in the fact that the valve core assembly 2 may also include a connecting rod 21, which can pass through the first water inlet 12 of the valve body 1 and can change the opening degree of the first water inlet 12 of the valve body 1 by sliding along the axis of the cylinder 19.

[0133] Figure 19 for Figure 14 The diagram shows a longitudinal sectional view of the one-inlet, two-outlet valve 92 in its first state. Figure 21 for Figure 14 The diagram shows a longitudinal sectional view of the one-inlet, two-outlet valve 92 in its second state. (Reference) Figure 19 and Figure 21The connecting rod 21 can be inserted through the cylinder 19 along its axial direction. Part of the connecting rod 21 can be located outside the cover plate 18 for connection with the actuator 5; another part of the connecting rod 21 can be located inside the cylinder 19 and inserted through the first water inlet 12 of the valve body 1, with the outer surface of this part of the connecting rod 21 forming a flow channel between it and the inner surface of the first water inlet 12 of the valve body 1 for liquid flow. The size of this flow channel can be changed during the axial movement of the connecting rod 21 along the cylinder 19.

[0134] For example, Figure 19 and Figure 21 In this configuration, a plug 24 can be fixed to the connecting rod 21, and an annular baffle 32 can be fixed to the inner surface of the first water inlet 12 of the valve body 1, i.e., the baffle 32 can have a central hole 221 inside. During the transition of the connecting rod 21 from the first state to the second state, the flow path of the valve body 1 decreases as it moves downward. To achieve this trend, at least one of the outer surface of the plug 24 and the inner surface of the baffle 32 has a slope. In one example, refer to... Figure 19 and Figure 21 The center hole 221 of the baffle platform 32 may include an inverted cone section, the diameter of which may be along the end face near the first water inlet 12 of the valve body 1 (i.e., Figure 19 and Figure 21 The lower end face of the cylinder 19 gradually decreases in size, so that as the plug 24 gradually approaches the end face of the first water inlet 12 of the valve body 1, the distance between the plug 24 and the central hole 221 gradually decreases. Optionally, the central hole 221 may also include a cylindrical section, which may be closer to the end face of the first water inlet 12 of the valve body 1 than the inverted conical section, and the diameter of the cylindrical section may be equal to the minimum diameter of the inverted conical section. In the second state, part of the plug 24 may be located within the cylindrical section to extend the length of the smaller flow channel.

[0135] In another example, the plug 24 may be coaxial with the connecting rod 21, and at least a portion of the diameter of the plug 24 gradually decreases along the direction close to the end face of the first water inlet 12 of the valve body 1. In the first state, the smaller diameter end of the plug 24 may be located within the central hole 221 of the baffle platform 32. During the transition from the first state to the second state, the larger diameter end of the plug 24 gradually falls into the central hole 221 of the baffle platform 32, so as to gradually reduce the distance between the plug 24 and the central hole 221 of the baffle platform 32.

[0136] Figure 22 for Figure 21 The cross-sectional view at mounting plate 31 shown is for reference. Figure 21 and Figure 22In order to make the connecting rod 21 move stably relative to the valve body 1, optionally, a mounting plate 31 can be fixed in the first water passage 12 of the valve body 1, the mounting plate 31 can have a limiting hole for the connecting rod 21 to pass through, and part of the connecting rod 21 can slide in the limiting hole. In addition, the mounting plate 31 and the barrel 19 or the water retaining platform 32 can have a flow channel for liquid to flow through.

[0137] In order to simplify the control, a driver 5 can be used to make the connecting rod 21 move and make the sleeve 22 rotate. Referring to Figure 19 and Figure 21 , optionally, the connecting rod 21 can include a first end and a second end, the first end of the connecting rod 21 can be screwed with the valve body 1, so that when the driver 5 drives the connecting rod 21 to rotate, the connecting rod 21 can move along the axial direction while rotating. The second end of the connecting rod 21 can be connected with the sleeve 22, so that the connecting rod 21 drives the sleeve 22 to rotate when moving. Of course, in order to facilitate the connecting rod 21 to change the first water passage 12 of the valve body 1, the second end of the connecting rod 21 can pass out of the sleeve 22 and can pass through the first water passage 12 of the valve body 1.

[0138] In addition, in order to make the diameter of the connecting rod 21 smaller than the diameter of the barrel 19, so as to facilitate the arrangement of the sleeve 22. Optionally, the accommodating space formed by the barrel 19 and the cover plate 18 can accommodate a shaft sleeve 4. The shaft sleeve 4 can include a mounting portion 41. The outer surface of the mounting portion 41 can be fixed with the inner surface of the barrel 19, and the inside of the mounting portion 41 can have a threaded hole screwed with the first end of the connecting rod 21. In order to avoid the leakage of liquid in the accommodating space, a sealing ring 8 can be arranged between the mounting portion 41 and the inner surface of the barrel 19. In addition, in order to facilitate the rotation of the sleeve 22 in the barrel 19, referring to Figure 19 and Figure 21 , the shaft sleeve 4 can further include a limiting portion 42, the limiting portion 42 can be coaxially arranged with the mounting portion 41, and the limiting portion 42 can be located below the mounting portion 41. The diameter of the limiting portion 42 can be smaller than the diameter of the mounting portion 41, so that the limiting portion 42 and the inner surface of the barrel 19 can have a certain spacing. The sleeve 22 can be accommodated in the spacing. That is, the sleeve 22 can be sleeved on the outside of the limiting portion 42 and can be embedded in the inside of the barrel 19, so as to limit the radial displacement of the sleeve 22.

[0139] In addition, the way in which the connecting rod 21 drives the sleeve 22 to move can have the following possible implementation manners:

[0140] In one possible implementation manner, the sleeve 22 can move relative to the connecting rod 21 as shown in Figures 15-21 . Referring to Figures 15-21The side wall of the connecting rod 21 can be fixed with a mounting rod 23, which can be arranged along the radial direction of the connecting rod 21. The side wall of the sleeve 22 can have a mounting groove 227 matched with the mounting rod 23. The mounting groove 227 is approximately L-shaped and can have an opening at one end due to the rotation and movement of the connecting rod 21.

[0141] During the rotation of the sleeve 22 by the connecting rod 21 through the mounting rod 23 and the mounting groove 227, the connecting rod 21 can have a first position as shown in Figure 15 and a second position as shown in Figure 17 . Referring to Figure 16 , the mounting groove 227 can include a first portion 2271 extending along the axial direction of the sleeve 22 and a second portion 2272 extending along the circumferential direction of the sleeve 22, and the second portion 2272 has an opening at one end away from the first portion 2271.

[0142] Referring to Figure 19 , in the first state, the second water outlet 13 has a large opening degree, the bypass water outlet 14 has a small opening degree, and the first water outlet 12 of the valve body 1 has a large opening degree. During the movement of the connecting rod 21 from Figure 19 to Figure 21 , the connecting rod 21 can rotate clockwise and descend, the mounting rod 23 is first in the first position as shown in Figure 15 , so that the connecting rod 21 can drive the sleeve 22 to rotate and descend to form the opening degrees of the bypass water outlet 14 as shown in Figure 20 and Figure 21 . When the lower end surface of the sleeve 22 abuts against the limiting portion 42 in the valve body 1, the mounting rod 23 can start to rotate clockwise from the first position as shown in Figure 15 and slide out of the mounting groove 227 from the opening of the second portion 2272 of the mounting groove 227. After the movement of the mounting rod 23 from the second position as shown in Figure 17 to the first position as shown in Figure 15 , the position of the plug 24 as shown in Figure 20 is formed.

[0143] Similarly, during the rotation of the connecting rod 21 from Figure 21 to Figure 19 , the connecting rod 21 can rotate counterclockwise and ascend, and the mounting rod 23 is moved from the second position as shown in Figure 17 to the first position as shown in Figure 15 . After the movement of the mounting rod 23 to the first position, the connecting rod 21 continues to rotate counterclockwise to drive the sleeve 22 to rotate counterclockwise and ascend to form the opening degrees of the bypass water outlet 14 as shown in Figure 18 and Figure 19 .

[0144] It should be noted that the limiting portion 42 mentioned above can limit the lowest position of the rotation of the sleeve 22, so as to support the sleeve 22 when the mounting rod 23 is separated from the mounting groove 227 of the sleeve 22. Figure 19 and Figure 21 In the water retaining platform 32, the upper end surface can be higher than the second water passage 13, so as to support the sleeve 22.

[0145] The one-in-two-out valve capable of changing the opening degree of three openings will be described below with reference to Figures 23-28 The one-in-two-out valve capable of changing the opening degree of three openings will be described below with reference to

[0146] The one-in-two-out valve capable of changing the opening degree of three openings will be described below with reference to

[0147] The valve core assembly 2 includes a connecting rod 21 and a sleeve 22, one end of the connecting rod 21 is provided with a plug 24, and the sleeve 22 is sleeved on the connecting rod 21 and can intermittently rotate with the connecting rod 21.

[0148] The connecting rod 21 is rotatably arranged on the valve body 1 and can also move relative to the valve body 1 during rotation, the sleeve 22 and the plug 24 are located in the valve body 1, the sleeve 22 is arranged on one side of the bypass water outlet 14 and is used to adjust the opening degree of the bypass water outlet 14, and the plug 24 is arranged opposite to the second water passage 13 and is used to adjust the opening degree of the second water passage 13.

[0149] Specifically, the valve body 1 can include a cylinder 19 and a cover plate 18. The cylinder 19 can be arranged in the vertical direction, and both the upper and lower ends of the cylinder 19 can have openings. The cover plate 18 can cover the opening above the cylinder 19 to form a closed end 11 at the upper end of the cylinder 19, and the lower end of the cylinder 19 forms the second water passage 13. The sidewall of the valve body 1 between the second water passage 13 of the valve body 1 and the closed end 11 of the valve body 1 can be provided with the first water passage 12 and the bypass water outlet 14.

[0150] In use, the connecting rod 21 is rotated to drive the plug 24 to approach or move away from the second water passage 13 to change the opening degree thereof, and at the same time, the connecting rod 21 can also drive the sleeve 22 to rotate in the valve body 1 during rotation of the connecting rod 21, thereby changing the opening degree of the bypass water outlet 14.

[0151] Similarly, the sleeve 22 has a central hole 221 formed in the interior thereof, the central hole 221 is arranged opposite to the second water outlet 13, and the sleeve 22 has a first communication groove 223 formed in the side portion thereof for communicating the central hole 221, and the first communication groove 223 is used for communicating the bypass water outlet 14.

[0152] During the adjustment of the bypass water outlet 14, the overlapping area of the first communication groove 223 and the bypass water outlet 14 will change, and a larger overlapping area will increase the opening degree of the bypass water outlet 14, and vice versa, a smaller overlapping area will decrease the opening degree of the bypass water outlet 14. Correspondingly, the sleeve 22 can block at least part of the bypass water outlet 14 during the rotation of the connecting rod 21, so as to change the opening degree of the bypass water outlet 14.

[0153] Preferably, the sleeve 22 can also change the opening degree of the first water outlet 12 and the bypass water outlet 14 by rotating in the barrel 19. Specifically, the side wall of the sleeve 22 is further provided with a second communication groove 224, and the first water outlet 12 communicates with the central hole 221 through the second communication groove 224.

[0154] During the adjustment of the first water outlet 12, the overlapping area of the second communication groove 224 and the first water outlet 12 will change, and a larger overlapping area will increase the opening degree of the first water outlet 12, and vice versa, a smaller overlapping area will decrease the opening degree of the first water outlet 12. Correspondingly, the sleeve 22 can also block at least part of the first water outlet 12 during the rotation of the connecting rod 21, so as to change the opening degree of the first water outlet 12.

[0155] In addition, Figures 23-28 The lower end surface of the bypass water outlet 14 is higher than the upper end surface of the first water outlet 12, that is, the first water outlet 12 and the bypass water outlet 14 are arranged in a staggered manner along the axial direction of the sleeve 22. For reference Figure 24 、 Figure 26 and Figure 28 The sleeve 22 has the first communication groove 223 and the second communication groove 224 arranged in an up-down manner along the axial direction of the sleeve 22.

[0156] The sleeve 22 can be fixed to the connecting rod 21 as shown in Figures 23-28 The second end of the connecting rod 21 can pass through the sleeve 22 and can be fixed to the sleeve 22. The fixing mode between the connecting rod 21 and the sleeve 22 can be selected from non-detachable connection such as welding and bonding, or detachable connection such as clamping connection and threaded connection. Exemplarily, Figure 23 and Figure 24In the embodiment, the side wall of the sleeve 22 can be provided with a mounting groove 227, which can have an opening facing downward. The side wall of the connecting rod 21 can be fixed with a mounting rod 23, which can be engaged with the mounting groove 227. In order to achieve stable connection between the connecting rod 21 and the sleeve 22, the mounting rod 23 can have at least two, and the plurality of mounting rods 23 can be uniformly distributed on the outer periphery of the connecting rod 21. Figure 23 and Figure 24 The mounting rod 23 is exemplarily taken as two.

[0157] Exemplarily, the connecting rod 21 is fixed with a plug 24, and the inner surface of the second water passage 13 of the valve body 1 can be fixed with an annular water retaining platform 32. In the process of changing the connecting rod 21 from the first state to the second state, the plug 24 moves downward to reduce the water flow cross-sectional area of the second water passage 13 and thus reduce the flow passage.

[0158] In order to achieve this trend, at least one of the outer surface of the plug 24 and the inner surface of the water retaining platform 32 has an inclined surface. That is, the second water passage 13 is provided with an annular water retaining platform 32, and the water retaining platform 32 is provided with a first inclined surface to form a tapered hole structure, and the plug is provided with a second inclined surface to form a tapered head structure.

[0159] Specifically, the central through hole of the water retaining platform 32 can include an inverted tapered section to form a tapered hole structure, and the diameter of the inverted tapered section can gradually decrease in the direction close to the end surface of the second water passage 13 of the valve body 1, so that the distance between the plug 24 and the central hole 221 gradually decreases in the process of gradually approaching the end surface of the second water passage 13 of the valve body 1. Alternatively, the central through hole of the water retaining platform 32 can also include a cylindrical section, which can be closer to the end surface of the second water passage 13 of the valve body 1 than the inverted tapered section, and the diameter of the cylindrical section can be equal to the minimum diameter of the inverted tapered section. In the second state, part of the plug 24 can be located in the cylindrical section, so as to prolong the length of the smaller flow passage.

[0160] In another example, the plug 24 can be coaxial with the connecting rod 21, and the diameter of at least part of the plug 24 gradually decreases in the direction close to the end surface of the second water passage 13 of the valve body 1 to form a tapered head structure. In the first state, the smaller end of the plug 24 can be located in the central through hole of the water retaining platform 32. In the process of changing from the first state to the second state, the larger diameter end of the plug 24 gradually falls into the central through hole of the water retaining platform 32, so as to gradually reduce the distance between the plug 24 and the central through hole of the water retaining platform 32.

[0161] To make the connecting rod 21 move stably relative to the valve body 1, optionally, a mounting plate 31 can be fixed in the second water passage 13 of the valve body 1, the mounting plate 31 can have a limiting hole for the connecting rod 21 to pass through, and part of the connecting rod 21 can slide in the limiting hole. In addition, the mounting plate 31 and the barrel 19 or the water retaining platform 32 can have a flow channel for the liquid to flow through.

[0162] To simplify the control, a driver 5 can be used to move the connecting rod 21 and rotate the sleeve 22. Referring to Figure 19 and Figure 21 , optionally, the connecting rod 21 can include a first end and a second end, the first end of the connecting rod 21 can be screwed with the valve body 1, so that when the driver 5 drives the connecting rod 21 to rotate, the connecting rod 21 can move along the axial direction while rotating. The second end of the connecting rod 21 can be connected with the sleeve 22, so that the connecting rod 21 drives the sleeve 22 to rotate when moving. Of course, in order to facilitate the connecting rod 21 to change the second water passage 13 of the valve body 1, the second end of the connecting rod 21 can pass out of the sleeve 22 and can pass through the second water passage 13 of the valve body 1.

[0163] In addition, in order to make the diameter of the connecting rod 21 smaller than the diameter of the barrel 19, so as to facilitate the arrangement of the sleeve 22. Optionally, the accommodating space formed by the barrel 19 and the cover plate 18 can accommodate a shaft sleeve 4. The shaft sleeve 4 can include a mounting portion 41. The outer surface of the mounting portion 41 can be fixed with the inner surface of the barrel 19, and the inside of the mounting portion 41 can have a threaded hole screwed with the first end of the connecting rod 21. In order to avoid the leakage of the liquid in the accommodating space, a sealing ring 8 can be arranged between the mounting portion 41 and the inner surface of the barrel 19. In addition, in order to facilitate the rotation of the sleeve 22 in the barrel 19, referring to Figure 19 and Figure 21 , the shaft sleeve 4 can further include a limiting portion 42, the limiting portion 42 can be coaxially arranged with the mounting portion 41, and the limiting portion 42 can be located below the mounting portion 41. The diameter of the limiting portion 42 can be smaller than the diameter of the mounting portion 41, so that the limiting portion 42 and the inner surface of the barrel 19 can have a certain spacing. The sleeve 22 can be accommodated in the spacing. That is, the sleeve 22 can be sleeved on the outside of the limiting portion 42, and can be embedded in the inside of the barrel 19, so as to limit the radial displacement of the sleeve 22.

[0164] It is worth noting that Figure 19 , Figure 21 , Figure 26 and Figure 28 the hollow arrows shown in the figures represent the flow direction of the liquid. Figure 19 , Figure 21 , Figure 26 and Figure 28The second water passage 13 can also be a first water passage of a two-way valve, the first water passage 12 of the valve body 1 can be a second water passage of a two-way valve, and the bypass water outlet 14 can be a bypass water outlet of a two-way valve, which are taken as examples. Of course, the second water passage 13 can also be a second water passage of a two-way valve, the bypass water outlet 14 can also be a bypass water outlet of a two-way valve, and the first water passage 12 of the valve body 1 can be a first water passage of a two-way valve.

[0165] It should be noted that the structure of the two-way valve mentioned above can also be in a third state, which can be a state between the first state and the second state.

[0166] Embodiment Two

[0167] The water heater 10 provided by the embodiment of the present application can include a water heater 10 body and a two-way valve provided by the above embodiment. The water heater 10 body includes a water inlet end 101, a hot water end 102, and a water outlet end 103, and the two-way valve includes a valve, at least part of which is arranged at the water inlet end 101 and used to adjust the flow of cold water flowing into the water inlet end 101, and at least part of which is arranged at the hot water end 102 and used to adjust the flow of cold water flowing into the hot water end 102.

[0168] Embodiment Three

[0169] The control method provided by the embodiment of the present application can include:

[0170] Obtaining a last water use end time of a user;

[0171] Obtaining a current water use start time of the user;

[0172] Calculating a time interval between the current water use start time of the user and the last water use end time of the user;

[0173] Comparing the time interval with a preset time period, and when the time interval is less than the preset time period, controlling the valve to reduce the flow of cold water flowing into the water inlet end 101 of the water heater 10 and increase the flow of cold water flowing into the hot water end 102 of the water heater 10.

[0174] Optionally, the control method of the water heater 10 can further include:

[0175] Obtaining an operation state of the water heater 10;

[0176] Obtaining a heating state of the water heater 10;

[0177] Obtaining a temperature of the water outlet end 103 of the water heater 10;

[0178] According to the operating state, the heating state and the temperature of the water outlet end 103, the valve is controlled to adjust the flow of cold water into the water inlet end 101 of the water heater 10 and the flow of cold water into the hot water end 102 of the water heater 10.

[0179] Wherein, the terms such as "upper", "lower" and the like are used to describe the relative positional relationship of various structures in the drawings, and are only for the convenience of clear description, and are not intended to limit the scope of the application. Changes or adjustments of the relative relationship without substantial changes in technical content are also considered as the scope of the application.

[0180] It should be noted that in the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. It can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0181] In addition, in the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0182] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0183] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A one-in-two-out valve characterized by, include: The valve body is provided with a first water pipe, a second water pipe and a bypass pipe; A valve assembly, comprising a connecting rod, a sleeve, and a plug, wherein the sleeve and the plug are sequentially fixedly disposed on the connecting rod, and the plug is arranged near one end of the connecting rod. A driver, used to drive the connecting rod to reciprocate; The connecting rod is slidably disposed in the valve body and is used to drive the sleeve to slide in the valve body; the plug is arranged opposite to the second water pipe and is used to adjust the opening of the second water pipe; the sleeve is arranged on one side of the bypass pipe and is used to adjust the opening of the bypass pipe. In addition, the side wall of the connecting rod is fixed with an installation rod, which is arranged radially along the connecting rod. The side wall of the sleeve has an installation groove that mates with the installation rod. The installation groove includes a first part and a second part. The first part extends axially along the sleeve, and the second part extends circumferentially along the sleeve. The end of the second part opposite to the first part is open.

2. The two-way valve according to claim 1, wherein A baffle is provided in the bypass pipe, and a bypass outlet is provided on the baffle. The sleeve is located on one side of the baffle and is used to open and close the bypass outlet during the sliding of the valve body.

3. The two-way valve according to claim 2, wherein The first water pipe forms the first water inlet, and the second water pipe forms the second water inlet; The sleeve has a central hole inside, which is arranged opposite to the second water inlet and communicates with the first water inlet. The connecting rod passes through the sleeve, and the plug is arranged opposite to the second water inlet.

4. The 1-in-2-out valve of claim 1, wherein The driver is a linear motor or a cylinder, and the connecting rod is connected to the movable part of the driver.

5. The two-way valve of claim 1, wherein The driver is a rotary motor, which drives the connecting rod to rotate while also moving it relative to the valve body.

6. The two-way valve of claim 5, wherein The connecting rod has a first end and a second end. The first end of the connecting rod is provided with a threaded portion, and the connecting rod is threadedly connected to the valve body through the threaded portion. The second end of the connecting rod is provided with the plug.

7. The 1-in-2-out valve of claim 5, wherein, An internal gear ring is provided on the rotating shaft of the rotating motor, and a toothed structure is provided at the end of the connecting rod extending out of the valve body. The toothed structure is slidably disposed in the internal gear ring and meshes with the internal gear ring.

8. The two-way valve of claim 5, wherein The valve body is provided with a bushing, and the bushing is provided with a threaded hole, and the threaded part is threadedly connected to the threaded hole.

9. The 1-in-2-out valve of claim 8, wherein, The bushing includes a mounting part and a limiting part arranged in sequence. The mounting part is embedded in the valve body and fixed to the inner surface of the valve body. The connecting rod is threaded on the mounting part. The limiting part is arranged on the mounting part and has a through hole for the connecting rod to pass through. A preset distance is formed between the limiting part and the inner surface of the valve body. The sleeve is rotatably arranged within the preset distance.

10. The two-way valve of claim 8, wherein A sealing ring is provided between the bushing and the valve body.

11. The two-way valve of claim 10, wherein The outer surface of the bushing is provided with a groove, and the sealing ring is disposed in the groove.

12. The two-way valve of claim 10, wherein, The valve body is also provided with a limiting step surface, one end of the sleeve abuts against the bushing, and the other end of the sleeve abuts against the limiting step surface.

13. The 1-in-2-out valve of claim 1, wherein The sleeve is bonded to the connecting rod, or the sleeve is detachably arranged on the connecting rod.

14. The 1-in-2-out valve of claim 3, wherein, The second water outlet is provided with an annular water retaining platform, the water retaining platform is provided with a first inclined surface to form a conical hole structure, and the plug is provided with a second inclined surface to form a conical head structure.

15. A water heater comprising a water heater body, the water heater body comprising a water inlet end, a hot water end and a water outlet end, characterised in that, Also included is a one-in-two-out valve according to any one of claims 1-14, which is connected between the water inlet end and the water outlet end.

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