A control valve and its control method

Abstract

The present invention discloses a control valve, which relates to the technical field of fluid control. The key points of its technical solution are as follows: It includes a valve body and a main control board. A valve core for controlling the outlet water temperature and the outlet water flow is arranged inside the valve body. An execution unit one and an execution unit two are arranged on the valve body. A detection unit one for detecting the water flow temperature and a detection unit two for detecting the water flow pressure are arranged on the valve body. The main control board can receive the signal of the detection unit one and drive the valve core through the execution unit one to control the outlet water flow. The main control board can receive the signal of the detection unit two and drive the valve core through the execution unit two to control the outlet water temperature. This control valve can still maintain the stability of the outlet water temperature and the outlet water flow even when the water flow pressure fluctuates. The present invention also discloses a control method.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid control, and particularly relates to a control valve and a control method thereof. Background Art

[0002] Conventional faucets used in the market usually adjust the water flow temperature and control the water flow rate manually. When in use, users usually need to manually adjust the opening degree of the control valve core to adjust the water flow temperature and control the water flow rate. However, it is difficult to accurately control the water flow rate and the water outlet temperature by manually adjusting the opening degree of the valve core. Therefore, some control valves are disclosed in the prior art to accurately control the water outlet flow rate and the water outlet temperature. However, a common problem with existing control valves is that due to the existence of water flow pressure, the water outlet temperature and the water flow rate are extremely likely to change, and it is difficult to maintain the stability of the water outlet temperature, which affects the user experience. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a control valve, which has the advantage of maintaining the stability of the water outlet temperature and the water flow rate even when the water flow pressure fluctuates.

[0004] The above technical purpose of the present invention is achieved through the following technical solutions: It includes a valve body and a main control board. A valve core for controlling the water outlet temperature and the water flow rate is arranged inside the valve body. An execution unit one and an execution unit two are arranged on the valve body. A detection unit one for detecting the water flow pressure and a detection unit two for detecting the water flow temperature are arranged on the valve body. The main control board can receive the signal of the detection unit one and drive the valve core through the execution unit one to control the water flow rate. The main control board can receive the signal of the detection unit two and drive the valve core through the execution unit two to control the water outlet temperature.

[0005] Through the above technical solutions, the main control board drives the valve core through the execution unit one. After the valve core is opened, the valve body starts to discharge water. The detection unit one detects the water flow pressure and transmits the detected water flow pressure to the main control board. The detection unit two detects the water flow temperature and transmits the detected water flow temperature to the main control board. The main control board transmits corresponding instructions to the execution unit one according to the received water flow pressure. The execution unit one drives the valve core to control the water flow rate. The main control board transmits corresponding instructions to the execution unit two according to the received water flow temperature. The execution unit two drives the valve core to control the water outlet temperature, ensuring that the water outlet temperature and the water flow rate can still be maintained stable even when the water flow pressure fluctuates.

[0006] Preferably, the first execution unit includes a first rotary drive source, a first gear, and a swing rod. The output end of the first rotary drive source is connected to the first gear. A plurality of first tooth grooves are provided on the swing rod. The first gear can mesh with the first tooth grooves. The first rotary drive source can make the swing rod swing, and the swing rod is connected to the valve core.

[0007] Through the above technical solution, after the first rotary drive source is started, it drives the first gear to rotate. After rotation, the first gear drives the swing rod to swing through cooperation with the first tooth grooves. The swung swing rod drives the valve core, thereby controlling the opening degree of the valve core.

[0008] Preferably, the second execution unit includes a second rotary drive source, a second gear, and a linkage disk. The output end of the second rotary drive source is connected to the second gear. A plurality of second tooth grooves are provided on the linkage disk. The second gear can mesh with the second tooth grooves. The second rotary drive source can make the linkage disk rotate, and the linkage disk is connected to the valve core. The first rotary drive source is connected to the linkage disk.

[0009] Through the above technical solution, after the second rotary drive source is started, it drives the second gear to rotate. After rotation, the second gear drives the linkage disk to rotate through cooperation with the second tooth grooves. The rotated linkage disk drives the valve core, thereby controlling the opening degree of the valve core.

[0010] Preferably, the first detection unit includes a pressure sensor, and the pressure sensor is electrically connected to the main control board.

[0011] Through the above technical solution, the pressure sensor can detect the water flow pressure in real time and transmit it to the main control board. When the water flow pressure changes, the main control board can timely transmit corresponding instructions to the first execution unit, and drive the valve core through the first execution unit to control the water output flow.

[0012] Preferably, the second detection unit includes a temperature sensor, and the temperature sensor is electrically connected to the main control board.

[0013] Through the above technical solution, the temperature sensor can detect the water flow temperature in real time and transmit it to the main control board. When the water flow temperature changes, the main control board can timely transmit corresponding instructions to the second execution unit, and drive the valve core through the second execution unit to control the water output temperature.

[0014] Preferably, a first water inlet channel, a second water inlet channel, and a water outlet channel are provided on the valve body. The valve core can control the communication area between the first water inlet channel and the second water inlet channel and the water outlet channel. The valve core can control the communication area between the first water inlet channel or the second water inlet channel and the water outlet channel.

[0015] Through the above technical solution, the valve core controls the communication area between the first water flow channel, the second water inlet channel and the water outlet channel, or the valve core controls the communication area between the first water flow channel or the second water inlet channel and the water outlet channel, so as to control the water outlet flow rate and the water outlet temperature.

[0016] Preferably, a first limiting block is connected to the valve body, the first limiting block can limit the valve core, a second limiting block is connected to the valve core, and the second limiting block can limit the linkage disk.

[0017] Through the above technical solution, the first limiting block limits the valve core to ensure the relative position stability between the valve core and the valve body, and the second limiting block limits the linkage disk to ensure the position stability of the linkage disk.

[0018] Preferably, the valve core includes a housing, a base, a static porcelain piece, a dynamic porcelain piece, a valve rod and a handle. The housing is connected to the base. The static porcelain piece is circumferentially fixed on the upper end surface of the base. The dynamic porcelain piece is movably arranged on the upper end surface of the static porcelain piece. The valve rod is rotatably connected to the handle. The valve rod is connected to the swing rod and the dynamic porcelain piece. The handle is connected to the linkage disk and the dynamic porcelain piece.

[0019] Through the above technical solution, the swung swing rod drives the valve rod to rotate, and the rotated valve rod drives the dynamic porcelain piece to slide on the upper end surface of the static porcelain piece, so as to control the opening degree of the valve core; the rotated linkage disk drives the handle to rotate, and the rotated handle drives the dynamic porcelain piece to rotate on the upper end surface of the static porcelain piece, so as to control the opening degree of the valve core.

[0020] Preferably, a first water inlet hole, a second water inlet hole and a first water outlet hole are formed in the base. The first water inlet hole is communicated with the first water flow channel, the second water inlet hole is communicated with the second water flow channel, and the first water outlet hole is communicated with the water outlet channel. A third water inlet hole, a fourth water inlet hole and a second water outlet hole are formed in the static porcelain piece. A mixing cavity is formed by the cooperation between the static porcelain piece and the dynamic porcelain piece. The first water inlet hole is communicated with the third water inlet hole, and the third water inlet hole can be communicated with the mixing cavity. The second water inlet hole is communicated with the fourth water inlet hole, and the fourth water inlet hole can be communicated with the mixing cavity. The first water outlet hole is communicated with the second water outlet hole, and the second water outlet hole is communicated with the mixing cavity.

[0021] Through the above technical solution, the water flow in the first water flow channel flows into the mixing cavity through the first water inlet hole and the third water inlet hole in sequence, the water flow in the second water flow channel flows into the mixing cavity through the second water inlet hole and the fourth water inlet hole in sequence, the water flows are mixed in the mixing cavity, and then flow into the water outlet channel through the second water outlet hole and the first water outlet hole in sequence.

[0022] Preferably, a control method for a control valve includes the following steps:

[0023] S1. The main control board controls the first actuator to drive the valve core, and water flows out of the valve body.

[0024] S2. The first detection unit detects the water flow pressure and transmits it to the main control board, and the second detection unit detects the water flow temperature and transmits it to the main control board.

[0025] S3. The main control board receives the signal from the first detection unit and drives the valve core through the first actuator to control the water flow rate, and the main control board receives the signal from the second detection unit and drives the valve core through the second actuator to control the water outlet temperature.

[0026] Through the above technical solution, according to the water flow pressure detected by the first detection unit and the water flow temperature detected by the second detection unit, the main control board can timely drive the valve core through the first actuator to control the water flow rate and drive the valve core through the second actuator to control the water outlet temperature, so as to ensure that the water outlet temperature and the water flow rate remain stable even when the water flow pressure fluctuates.

[0027] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0028] 1. When the water flow pressure fluctuates, the water outlet temperature and the water flow rate can be maintained stable, ensuring the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a cross-sectional view of the embodiment;

[0030] Figure 2 It is a partial structural schematic diagram of the embodiment;

[0031] Figure 3 It is a structural schematic diagram of the valve core of the embodiment;

[0032] Figure 4 It is a cross-sectional view of the valve core of the embodiment;

[0033] Figure 5 It is a structural schematic diagram of the housing of the embodiment;

[0034] Figure 6 It is a structural schematic diagram of the handle of the embodiment;

[0035] Figure 7 It is a structural schematic diagram of the connecting seat of the embodiment;

[0036] Figure 8 It is a structural schematic diagram of the moving porcelain piece of the embodiment;

[0037] Figure 9 It is a structural schematic diagram of the static porcelain piece of the embodiment;

[0038] Figure 10 Schematic structural diagram of the base of the embodiment;

[0039] Figure 11 Schematic structural diagram of the main control board of the embodiment;

[0040] Figure 12 Schematic structural diagram of the swing rod of the embodiment;

[0041] Figure 13 Schematic structural diagram of the linkage disc of the embodiment;

[0042] Figure 14 Schematic external structural diagram of the embodiment.

[0043] Reference numerals: 1, outer shell; 2, valve body; 3, main control board; 4, valve core; 41, housing; 42, base; 43, static porcelain piece; 44, moving porcelain piece; 45, valve rod; 46, handle; 47, connecting seat; 5, execution unit 1; 51, first rotation drive source; 52, first gear; 53, swing rod; 54, first tooth groove; 6, execution unit 2; 61, second rotation drive source; 62, second gear; 63, linkage disc; 64, second tooth groove; 7, first detection unit; 71, pressure sensor; 8, second detection unit; 81, temperature sensor; 9, first water inlet channel; 10, second water inlet channel; 11, water outlet channel; 12, first limit block; 13, second limit block; 14, first water inlet hole; 15, second water inlet hole; 16, first water outlet hole; 17, third water inlet hole; 18, fourth water inlet hole; 19, second water outlet hole; 20, mixing chamber; 21, groove; 22, first protrusion; 23, positioning groove; 24, first limit protrusion; 25, second limit protrusion; 26, second protrusion; 27, connecting groove; 28, third protrusion; 29, fourth protrusion; 30, positioning port; 31, insertion slot; 32, buzzer; 33, third tooth groove; 34, fourth tooth groove; 35, power supply unit. Detailed implementation manners

[0044] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0045] The present invention will be further described in detail below with reference to the accompanying drawings.

[0046] A control valve, as Figures 1 to 14 shown, includes an outer shell 1, a valve body 2, a power supply unit 35 and a main control board 3, and both the valve body 2 and the main control board 3 are arranged inside the outer shell 1.

[0047] The power supply unit 35 includes a battery, which is installed in the housing 1 and electrically connected to the main control board 3. Of course, as another solution, the main control board 3 can also be directly connected to an external power supply.

[0048] A valve core 4 for controlling the outlet water temperature and the outlet water flow rate is arranged in the valve body 2. Specifically, a first inlet water flow channel 9, a second inlet water flow channel 10 and an outlet water flow channel 11 are arranged on the valve body 2. The valve core 4 can control the communication area between the first inlet water flow channel 9 and the second inlet water flow channel 10 and the outlet water flow channel 11, that is, the water flow rate of the first inlet water flow channel 9 and the second inlet water flow channel 10 entering the outlet water flow channel 11 is restricted in this way, so as to realize the control of the outlet water flow rate by the valve core 4; the valve core 4 can control the communication area between the first inlet water flow channel 9 or the second inlet water flow channel 10 and the outlet water flow channel 11. It should be noted that any one of the first inlet water flow channel 9 and the second inlet water flow channel 10 is used for cold water to pass through, and the corresponding other flow channel is used for hot water to pass through. Therefore, by restricting the water flow rate of the first inlet water flow channel 9 entering the outlet water flow channel 11 or the water flow rate of the second inlet water flow channel 10 entering the outlet water flow channel 11, the control of the outlet water temperature by the valve core 4 can be realized.

[0049] A buzzer 32 is arranged on the main control board 3, and the buzzer 32 is electrically connected to the main control board 3. It should be noted that when the voltage is abnormal, such as when the voltage is too high or too low, the buzzer 32 sounds to remind the user.

[0050] The valve core 4 includes a housing 41, a base 42, a static porcelain piece 43, a dynamic porcelain piece 44, a valve stem 45 and a handle 46. The housing 41 is connected to the base 42, and the static porcelain piece 43 is circumferentially fixed on the upper end surface of the base 42. Specifically, a first protrusion 22 is arranged on the upper end surface of the base 42, and a positioning groove 23 is formed on the side wall of the static porcelain piece 43. The first protrusion 22 is inserted into the positioning groove 23 and the two cooperate to circumferentially fix the static porcelain piece 43. The dynamic porcelain piece 44 is movably arranged on the upper end surface of the static porcelain piece 43. Specifically, the dynamic porcelain piece 44 can slide or rotate on the upper end surface of the static porcelain piece 43.

[0051] The valve stem 45 is rotatably connected to the handle 46. Specifically, the valve stem 45 passes through the handle 46, and the valve stem 45 is hinged to the handle 46. The lower end of the valve stem 45 is connected with a connecting seat 47. Preferably, the connecting seat 47 and the valve stem 45 are connected by means of insertion. Of course, other connection methods can also be adopted.

[0052] At least two first limiting protrusions 24 are arranged on the outer side wall of the handle 46, and at least two second limiting protrusions 25 are arranged on the inner side wall of the housing 41. The side wall of the first limiting protrusion 24 can be abutted against the side wall of the second limiting protrusion 25, and the rotation angle of the handle 46 is restricted by the cooperation of the first limiting protrusion 24 and the second limiting protrusion 25.

[0053] The valve stem 45 is connected to the moving porcelain piece 44. Specifically, a second protrusion 26 is provided on the connecting seat 47, and a connecting groove 27 is formed on the upper end surface of the moving porcelain piece 44. The second protrusion 26 is inserted into the connecting groove 27.

[0054] The handle 46 is connected to the moving porcelain piece 44. A third protrusion 28 is provided on the upper end surface of the connecting seat 47. At least two fourth protrusions 29 are spaced apart on the lower end surface of the handle 46, and a positioning port 30 is formed by the cooperation of the two fourth protrusions 29. The positioning port 30 can circumferentially position the third protrusion 28, and the third protrusion 28 is slidably connected to the positioning port 30, that is, the handle 46 can drive the connecting seat 47 to rotate through the cooperation of the positioning port 30 and the third protrusion 28.

[0055] A first water inlet hole 14, a second water inlet hole 15, and a first water outlet hole 16 are formed on the base 42. The first water inlet hole 14 is communicated with the first water inlet channel 9, the second water inlet hole 15 is communicated with the second water inlet channel 10, and the first water outlet hole 16 is communicated with the water outlet channel 11. A third water inlet hole 17, a fourth water inlet hole 18, and a second water outlet hole 19 are formed on the static porcelain piece 43. A mixing cavity 20 is formed by the cooperation between the static porcelain piece 43 and the moving porcelain piece 44. Specifically, a groove 21 is formed on the lower end surface of the moving porcelain piece 44, and the groove 21 and the moving porcelain piece 44 cooperate to form the mixing cavity 20. The first water inlet hole 14 is communicated with the third water inlet hole 17, and the third water inlet hole 17 can be communicated with the mixing cavity 20. The second water inlet hole 15 is communicated with the fourth water inlet hole 18, and the fourth water inlet hole 18 can be communicated with the mixing cavity 20. The first water outlet hole 16 is communicated with the second water outlet hole 19, and the second water outlet hole 19 is communicated with the mixing cavity 20.

[0056] A first limiting block 12 is connected to the valve body 2. The first limiting block 12 can limit the valve core 4. Specifically, the valve body 2 has a receiving groove, the valve core 4 is arranged in the receiving groove, the first limiting block 12 is threadedly connected to the receiving groove, and the lower end surface of the first limiting block 12 can abut against the upper end surface of the housing 41.

[0057] An execution unit one 5 and an execution unit two 6 are provided on the valve body 2. A first detection unit 7 for detecting the water flow pressure and a second detection unit 8 for detecting the water flow temperature are provided on the valve body 2. The main control board 3 can receive the signal of the first detection unit 7 and drive the valve core 4 through the execution unit one 5 to control the water flow rate. The main control board 3 can receive the signal of the second detection unit 8 and drive the valve core 4 through the execution unit two 6 to control the water flow temperature.

[0058] The first detection unit 7 includes a pressure sensor 71. The pressure sensor 71 is electrically connected to the main control board 3. Of course, other detection devices capable of detecting the water flow pressure can also be used. The pressure sensor 71 can detect the water flow pressure in the water outlet channel 11. Of course, as another solution, pressure sensors 71 can also be arranged in both the first water inlet channel 9 and the second water inlet channel 10. Of course, the pressure sensor 71 can also be arranged in a water using device communicated with the water outlet channel 11.

[0059] The second detection unit 8 includes a temperature sensor 81. The temperature sensor 81 is electrically connected to the main control board 3. Of course, other detection devices capable of detecting the water flow temperature can also be used. The temperature sensor 81 can detect the water flow temperature in the water flow channel 11. Of course, the temperature sensor 81 can also be arranged in a water using device communicated with the water outlet channel 11.

[0060] The first execution unit 5 includes a first rotation drive source 51, a first gear 52 and a swing rod 53. The first rotation drive source 51 is preferably a reduction motor, and can also be other ordinary drive sources with a rotation function such as a rotary electromagnet in the prior art. The output end of the first rotation drive source 51 is connected to the first gear 52. A plurality of first tooth grooves 54 are arranged on the swing rod 53. Preferably, the plurality of first tooth grooves 54 are uniformly arranged along an arc. The first gear 52 can be meshed with the first tooth grooves 54. The first rotation drive source 51 can cooperate with the plurality of first tooth grooves 54 through the first gear 52 to make the swing rod 53 swing.

[0061] The swing rod 53 is connected to the valve core 4. Specifically, the upper end of the valve rod 45 is connected to the swing rod 53, that is, a plug-in groove 31 is formed on the lower end surface of the swing rod 53, and the upper end of the valve rod 45 is plugged into the plug-in groove 31. As another solution, the valve rod 45 and the swing rod 53 can also be connected by other means.

[0062] The second execution unit 6 includes a second rotation drive source 61, a second gear 62 and a linkage disk 63. The second rotation drive source 61 is preferably a reduction motor, and can also be other ordinary drive sources with a rotation function such as a rotary electromagnet in the prior art. The output end of the second rotation drive source 61 is connected to the second gear 62. A plurality of second tooth grooves 64 are arranged on the linkage disk 63. Preferably, the plurality of second tooth grooves 64 are uniformly arranged along the outer side wall of the linkage disk 63. The second gear 62 can be meshed with the second tooth grooves 64. The second rotation drive source 61 can cooperate with the plurality of second tooth grooves 64 through the second gear 62 to make the linkage disk 63 rotate.

[0063] The linkage disk 63 is connected to the valve core 4, and the handle 46 is in transmission connection with the linkage disk 63. Specifically, a plurality of third tooth grooves 33 are arranged on the inner side wall of the linkage disk 63, and a plurality of fourth tooth grooves 34 are arranged on the outer side wall of the handle 46. The linkage disk 63 is sleeved on the outer side of the handle 46, and the third tooth grooves 33 can be meshed with the fourth tooth grooves 34. The linkage disk 63 can drive the handle 46 to rotate through the cooperation of the plurality of third tooth grooves 33 and the plurality of fourth tooth grooves 34.

[0064] The first rotation drive source 51 is connected to the linkage disk 63. Specifically, the first rotation drive source 51 is installed on the linkage disk 63, and the rotation of the linkage disk 63 can drive the first rotation drive source 51 to rotate.

[0065] A limit block two 13 is connected to the valve core 4. The limit block two 13 can limit the linkage disk 63. The limit block two 13 is threadedly connected to the handle 46, and the lower end surface of the limit block two 13 can abut against the upper end surface of the linkage disk 63.

[0066] It should be noted that the main control board 3 is connected to an external control unit, that is, the user can set the water flow temperature and water flow rate through the control unit. That is, the user can increase or decrease the water flow rate through the control unit, and can also increase or decrease the outlet water temperature through the control unit. Of course, the control unit can also be directly set on the housing 1.

[0067] A control method for a control valve includes the following steps:

[0068] S1. The main control board 3 controls the execution unit one 5 to drive the valve core 4, and the valve body 2 discharges water.

[0069] S2. The detection unit one 7 detects the water flow pressure and transmits it to the main control board 3, and the detection unit two 8 detects the water flow temperature and transmits it to the main control board 3.

[0070] S3. The main control board 3 receives the signal from the detection unit one 7 and drives the valve core 4 through the execution unit one 5 to control the water discharge flow rate. The main control board 3 receives the signal from the detection unit two 8 and drives the valve core 4 through the execution unit two 6 to control the water discharge temperature.

[0071] The working principle is as follows:

[0072] When the user needs to use water, the main control board 3 transmits corresponding instructions to the rotary drive source one 51. The rotary drive source one 51 starts, and the output end of the rotary drive source one 51 rotates to drive the gear one 52 to rotate. The rotating gear one 52 drives the swing rod 53 to swing through a plurality of tooth grooves one 54 engaged with it. The swinging swing rod 53 drives the valve rod 45 to rotate. The valve rod 45 drives the moving ceramic piece 44 to slide on the upper end surface of the static ceramic piece 43. The water flow in the water inlet channel one 9 flows into the mixing chamber 20 through the water inlet hole one 14 and the water inlet hole three 17 in sequence. The water flow in the water inlet channel two 10 flows into the mixing chamber 20 through the water inlet hole two 15 and the water inlet hole four 18 in sequence. The two water flows are mixed in the mixing chamber 20, and then flow into the water outlet channel 11 through the water outlet hole two 19 and the water outlet hole one 16 in sequence. The water flow in the water outlet channel 11 flows through the pipeline to the water using device for the user to use.

[0073] Since the pressure sensor 71 detects the water flow pressure in the water flow channel 11 in real time and transmits it to the main control board 3, when the main control board 3 determines that the water flow pressure fluctuates according to the water flow pressure transmitted by the pressure sensor 71, the main control board 3 sends a corresponding instruction to the first rotation drive source 51. The first rotation drive source 51 starts, and the output end of the first rotation drive source 51 rotates to drive the first gear 52 to rotate. The rotating first gear 52 drives the swing rod 53 to swing through a plurality of tooth grooves 54 that can mesh with it. The swinging swing rod 53 drives the valve stem 45 to rotate, and the valve stem 45 drives the moving ceramic sheet 44 to slide on the upper end surface of the static ceramic sheet 43. By sliding the moving ceramic sheet 44, the communication area between the third water inlet hole 17 and the fourth water inlet hole 18 and the mixing chamber 20 is adjusted, and the water flow rate entering the mixing chamber 20 is controlled, so as to increase or decrease the water flow rate and maintain the stability of the outlet water flow rate.

[0074] The temperature sensor 81 detects the water flow temperature in the water flow channel 11 in real time and transmits it to the main control board 3. When the main control board 3 determines that the outlet water temperature is changing according to the water flow temperature transmitted by the temperature sensor 81, the main control board 3 sends a corresponding instruction to the second rotation drive source 61. The second rotation drive source 61 starts, and the output end of the second rotation drive source 61 rotates to drive the second gear 62 to rotate. The rotating second gear 62 drives the linkage disk 63 to rotate through a plurality of tooth grooves 64 that can mesh with it. The rotating linkage disk 63 drives the handle 46 to rotate through the cooperation of a plurality of tooth grooves 33 and a plurality of tooth grooves 34. The handle 46 drives the connecting seat 47 to rotate through the cooperation of the positioning port 30 and the third protrusion 28. The connecting seat 47 drives the moving ceramic sheet 44 to rotate on the upper end surface of the static ceramic sheet 43 through the cooperation of the second protrusion 26 and the connecting groove 27. By rotating the moving ceramic sheet 44, the communication area between the third water inlet hole 17 and the mixing chamber 20 and / or the communication area between the fourth water inlet hole 18 and the mixing chamber 20 is adjusted, so as to realize the adjustment of the outlet water temperature and maintain the stability of the outlet water temperature.

[0075] The above is only an exemplary embodiment of the present invention and is not used to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A control valve, comprising a valve body (2) and a main control board (3), characterized in that: A valve core (4) for controlling the outlet water temperature and the outlet water flow is arranged inside the valve body (2). An execution unit one (5) and an execution unit two (6) are arranged on the valve body (2). A detection unit one (7) for detecting the water flow pressure and a detection unit two (8) for detecting the water flow temperature are arranged on the valve body (2). The main control board (3) can receive the signal of the detection unit one (7) and drive the valve core (4) through the execution unit one (5) to control the outlet water flow. The main control board (3) can receive the signal of the detection unit two (8) and drive the valve core (4) through the execution unit two (6) to control the outlet water temperature; Wherein, the valve core (4) includes a housing (41), a base (42), a static porcelain piece (43), a dynamic porcelain piece (44), a valve rod (45) and a handle (46). The housing (41) is connected to the base (42). The static porcelain piece (43) is circumferentially fixed on the upper end surface of the base (42). The dynamic porcelain piece (44) is movably arranged on the upper end surface of the static porcelain piece (43). The valve rod (45) is rotatably connected to the handle (46). The valve rod (45) is connected to the execution unit one (5). The valve rod (45) is connected to the dynamic porcelain piece (44). The handle (46) is connected to the execution unit two (6). The handle (46) is connected to the dynamic porcelain piece (44).

2. The control valve according to claim 1, wherein: The execution unit one (5) includes a rotary drive source one (51), a gear one (52) and a swing rod (53). The output end of the rotary drive source one (51) is connected to the gear one (52). A plurality of tooth grooves one (54) are arranged on the swing rod (53). The gear one (52) can be engaged with the tooth grooves one (54). The rotary drive source one (51) can make the swing rod (53) swing. The swing rod (53) is connected to the valve core (4).

3. A control valve according to claim 2, wherein: The execution unit two (6) includes a rotary drive source two (61), a gear two (62) and a linkage disk (63). The output end of the rotary drive source two (61) is connected to the gear two (62). A plurality of tooth grooves two (64) are arranged on the linkage disk (63). The gear two (62) can be engaged with the tooth grooves two (64). The rotary drive source two (61) can make the linkage disk (63) rotate. The linkage disk (63) is connected to the valve core (4). The rotary drive source one (51) is connected to the linkage disk (63).

4. A control valve according to claim 1, characterized in that: The detection unit one (7) includes a pressure sensor (71). The pressure sensor (71) is electrically connected to the main control board (3).

5. A control valve according to claim 1, characterized in that: The detection unit two (8) includes a temperature sensor (81). The temperature sensor (81) is electrically connected to the main control board (3).

6. A control valve according to claim 1, wherein: The valve body (2) is provided with a first water inlet flow channel (9), a second water inlet flow channel (10) and a water outlet flow channel (11). The valve core (4) can control the communication area between the first water inlet flow channel (9) and the second water inlet flow channel (10) and the water outlet flow channel (11). The valve core (4) can control the communication area between the first water inlet flow channel (9) or the second water inlet flow channel (10) and the water outlet flow channel (11).

7. A control valve according to claim 3, characterized in that: A first limiting block (12) is connected to the valve body (2). The first limiting block (12) can limit the valve core (4). A second limiting block (13) is connected to the valve core (4). The second limiting block (13) can limit the linkage disc (63).

8. A control valve according to claim 6, characterized in that: A first water inlet hole (14), a second water inlet hole (15) and a first water outlet hole (16) are formed in the base (42). The first water inlet hole (14) communicates with the first water inlet flow channel (9). The second water inlet hole (15) communicates with the second water inlet flow channel (10). The first water outlet hole (16) communicates with the water outlet flow channel (11). A third water inlet hole (17), a fourth water inlet hole (18) and a second water outlet hole (19) are formed in the static porcelain piece (43). A mixing water cavity (20) is formed by the cooperation between the static porcelain piece (43) and the dynamic porcelain piece (44). The first water inlet hole (14) communicates with the third water inlet hole (17). The third water inlet hole (17) can communicate with the mixing water cavity (20). The second water inlet hole (15) communicates with the fourth water inlet hole (18). The fourth water inlet hole (18) can communicate with the mixing water cavity (20). The first water outlet hole (16) communicates with the second water outlet hole (19). The second water outlet hole (19) communicates with the mixing water cavity (20).

9. A control method for a control valve according to any one of claims 1-8, characterized in that: It includes the following steps: S1. The main control board (3) controls the execution unit one (5) to drive the valve core (4), and water flows out from the valve body (2). S2. The first detection unit (7) detects the water flow pressure and transmits it to the main control board (3). The second detection unit (8) detects the water flow temperature and transmits it to the main control board (3). S3. The main control board (3) receives the signal from the first detection unit (7) and drives the valve core (4) through the execution unit one (5) to control the water flow rate. The main control board (3) receives the signal from the second detection unit (8) and drives the valve core (4) through the execution unit two (6) to control the water flow temperature.

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