Water temperature regulation and control device

Abstract

The utility model relates to the field of bathroom equipment, in particular to a water temperature regulation and control device. The water temperature regulating device comprises a regulating valve, a water mixing structure, a flow valve and a flow detection structure which are connected in sequence; the adjusting valve comprises a cold water pipeline connector, a hot water pipeline connector, a first cavity, a valve rod and a first linear stepping motor. The first cavity is provided with a first water outlet, a first water inlet and a second water inlet, wherein the first water inlet and the second water inlet are oppositely arranged. The first water outlet, the first water inlet and the second water inlet are respectively communicated with the water mixing structure, the cold water pipeline interface and the hot water pipeline interface; the valve rod is arranged in the first cavity; the first linear stepping motor is connected with the valve rod and used for adjusting the position of the valve rod. The valve rod is used for adjusting the opening degree of the first water inlet and the opening degree of the second water inlet. And a temperature probe is arranged on the water mixing structure. The water temperature regulation and control device can accurately control the temperature and flow of water, so that the shower can stably discharge water, and the use experience is better.

Description

Technical Field

[0001] The utility model relates to the field of bathroom equipment, in particular to a water temperature control device. Background Art

[0002] Currently, there are two main types of control devices for thermostatic showers on the market: the first is a manual flow control valve with a mechanical thermostatic rod. Its disadvantages are that changes in the inlet water pressure and temperature have a significant impact on the outlet water temperature, resulting in poor temperature stability, and the flow rate needs to be adjusted manually, which is inconvenient to operate. The second is a control valve that uses a rotary stepper motor or DC motor to drive the regulating valve stem to achieve temperature and flow regulation. Its disadvantage is that the rotary motor has to drive the valve stem through a conversion structure, and its accuracy is not high, making it impossible to achieve the purpose of precise constant temperature.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a water temperature control device, aiming to solve the technical problem of poor stability of the water outlet temperature of the shower in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A water temperature control device, which includes a regulating valve, a water mixing structure, a flow valve and a flow detection structure connected in sequence; the regulating valve includes a cold water pipe interface, a hot water pipe interface, a first cavity, a valve stem and a first linear stepping motor; the first cavity is provided with a first water outlet and a first water inlet and a second water inlet arranged oppositely; the first water outlet, the first water inlet and the second water inlet are respectively connected to the water mixing structure, the cold water pipe interface and the hot water pipe interface; the valve stem is arranged in the first cavity; the first linear stepping motor is connected to the valve stem for adjusting the position of the valve stem; the valve stem is used to adjust the opening of the first water inlet and the second water inlet; the water mixing structure is provided with a temperature probe.

[0007] The water temperature control device is characterized in that an S pipe is provided in the water mixing structure; the S pipe is connected to the first water outlet and the flow valve.

[0008] The water temperature control device, wherein the flow valve includes a second cavity, a plug and a second linear stepper motor; the second cavity is respectively connected to the water mixing structure and the flow detection structure; the plug is arranged in the second cavity; the second linear stepper motor is connected to the plug for adjusting the position of the plug; a second water outlet is provided on the second cavity; the plug is used to adjust the opening of the second water outlet.

[0009] The water temperature control device, wherein the flow valve also includes a third cavity, and the third cavity is arranged between the second cavity and the flow detection structure; the second cavity and the third cavity are arranged in sequence along the moving direction of the plug; a positioning hole is provided in the third cavity; a positioning shaft is provided on the plug, and the positioning shaft extends along the axial direction of the second linear stepper motor and is inserted into the positioning hole in the third cavity.

[0010] The water temperature control device, wherein a flow rotor is provided in the flow detection structure; a flow sensor is provided on the flow detection structure; and the flow sensor is used to convert the mechanical movement of the flow rotor into an electrical signal.

[0011] The water temperature control device further includes a plurality of water diversion valves arranged downstream of the flow detection structure.

[0012] The water temperature control device further includes a control device, which is electrically connected to the regulating valve, temperature probe, flow valve and flow detection structure respectively.

[0013] The water temperature control device described above, wherein the regulating valve also includes a first tube body and a first valve cover, the first valve cover is detachably connected to the first tube body; the first valve cover is arranged opposite to the first linear stepper motor; the first cavity is located in the first tube body; the first linear stepper motor passes through the first tube body and is connected to the valve stem.

[0014] The water temperature control device, wherein the flow valve also includes a second tube body and a second valve cover, the second valve cover is detachably connected to the second pipe; the second cavity is located in the second tube body; the second linear stepper motor passes through the second valve cover and is connected to the plug.

[0015] The water temperature control device is characterized in that a mounting hole is provided on the water mixing structure; the temperature probe is inserted into the mounting hole; and it also includes a pressing plate, which is fixedly connected to the outer wall of the water mixing structure and is used to fix the temperature probe in the mounting hole.

[0016] Beneficial Effects: This utility model provides a water temperature control device that precisely controls the openings of the first and second water inlets by using a first linear stepper motor to adjust the position of a valve stem. Furthermore, a water mixing mechanism and a temperature probe are provided to ensure that the hot and cold water are thoroughly mixed before measuring the water temperature. The valve stem position is then adjusted based on the water temperature, thereby precisely controlling the ratio of hot and cold water to cold water. Finally, a flow valve and flow detection mechanism are provided to ensure stable water flow, thereby further precisely controlling the water temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The explosion of the water temperature control device Figure 1 .

[0018] Figure 2 Cross-section of the water temperature control device Figure 1 .

[0019] Figure 3 The explosion of the water temperature control device Figure 2 .

[0020] Figure 4 Cross-section of the water temperature control device Figure 2 .

[0021] Figure 5 The explosion of the water temperature control device Figure 3 .

[0022] Explanation of the main component symbols: 1- regulating valve, 2- water mixing structure, 3- flow valve, 4- flow detection structure, 11- cold water pipe interface, 12- hot water pipe interface, 13- first cavity, 14- valve stem, 15- first linear stepper motor, 131- first water inlet, 132- second water inlet, 133- first water outlet, 31- second cavity, 32- plug, 33- second linear stepper motor, 311- second water outlet, 34- third cavity, 341- positioning hole, 321- positioning shaft, 41- flow rotor, 42- flow sensor, 5- water diversion valve, 6- control device, 16- first pipe body, 17- first valve cover, 35- second pipe body, 36- second valve cover, 37- mounting hole, 38- pressing piece, 7- temperature probe, 8- shell, 9- sealing ring. DETAILED DESCRIPTION

[0023] The present invention provides a water temperature control device. To make the purpose, technical solution, and effects of the present invention more clear and explicit, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are only intended to explain the present invention and are not intended to limit the present invention.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means more than two.

[0025] See also Figure 1 and Figure 2 The utility model provides a water temperature control device, which includes a regulating valve 1, a water mixing structure 2, a flow valve 3 and a flow detection structure 4 connected in sequence; the regulating valve 1 includes a cold water pipe interface 11, a hot water pipe interface 12, a first cavity 13, a valve stem 14 and a first linear stepping motor 15; the first cavity 13 is provided with a first water outlet 133 and a first water inlet 131 and a second water inlet 132 arranged oppositely; the first water outlet 133, the first water inlet 131 and the second water inlet 132 are respectively connected to the water mixing structure 2, the cold water pipe interface 11 and the hot water pipe interface 12; the valve stem 14 is arranged in the first cavity 13; the first linear stepping motor 15 is connected to the valve stem 14 for adjusting the position of the valve stem 14; the valve stem 14 is used to adjust the opening of the first water inlet 131 and the second water inlet 132; the water mixing structure 2 is provided with a temperature probe 7.

[0026] Specifically, the first water inlet 131 and the second water inlet 132 are arranged in the moving direction of the valve stem 14 , and the valve stem 14 is located between the first water inlet 131 and the second water inlet 132 .

[0027] In one embodiment, the first water inlet 131 is located on the front side of the valve stem 14, the second water inlet 132 is located on the rear side of the valve stem 14, and the first linear stepper motor 15 is used to move the valve stem 14 forward and backward. When the valve stem 14 moves forward, the opening of the first water inlet 131 decreases until it is blocked by the valve stem 14, and the opening of the second water inlet 132 increases. When the valve stem 14 moves backward, the opening of the second water inlet 132 decreases until it is blocked by the valve stem 14, and the opening of the first water inlet 131 increases. After passing through the regulating valve 1, hot and cold water enter the mixing structure 2 and are fully mixed. The temperature probe 7 measures the outlet water temperature of the mixing structure 2 and provides feedback, thereby regulating the operation of the first linear stepper motor 15. The flow detection structure 4 is used to detect the flow in the pipeline and provide feedback, so that the system can control the operation of the flow valve 3.

[0028] See also Figure 2 In one embodiment, an S-shaped pipe is provided within the water mixing structure 2; the S-shaped pipe connects the first water outlet 133 and the flow valve 3. The S-shaped pipe allows for thorough mixing of hot and cold water, thereby ensuring more accurate data detected by the temperature probe 7. Specifically, the temperature probe 7 is provided at the water outlet of the water mixing structure 2.

[0029] See also Figure 1 and Figure 2In one embodiment, the flow valve 3 includes a second cavity 31, a plug 32, and a second linear stepper motor 33; the second cavity 31 is connected to the water mixing structure 2 and the flow detection structure 4 respectively; the plug 32 is disposed in the second cavity 31; the second linear stepper motor 33 is connected to the plug 32 and is used to adjust the position of the plug 32; a second water outlet 311 is provided on the second cavity 31; the plug 32 is used to adjust the opening of the second water outlet 311. Specifically, the second linear stepper motor 33 is used to move the plug 32 forward and backward. When the plug 32 moves backward, the opening of the water outlet of the second cavity 31 increases, and vice versa. By controlling the second linear stepper motor 33 based on the detection data of the flow detection structure 4, the water flow rate can be changed by the second linear stepper motor 33. The use of a linear stepper motor can directly change the position of the plug 32 without the use of a conversion structure, and the control is more precise.

[0030] See also Figure 2 In one embodiment, the flow valve 3 further includes a third cavity 34 disposed between the second cavity 31 and the flow detection structure 4. The second cavity 31 and the third cavity 34 are sequentially disposed along the movement direction of the plug 32. A positioning hole 341 is disposed within the third cavity 34. A positioning shaft 321 is disposed on the plug 32, extending along the axial direction of the second linear stepping motor 33 and inserted into the positioning hole 341 within the third cavity 34. Positioning the plug 32 by providing the positioning shaft 321 and the positioning hole 341 can prevent resonance during the flow regulation process.

[0031] See also Figure 1 and Figure 2 In one embodiment, a flow rotor 41 is provided in the flow detection structure 4; a flow sensor 42 is provided on the flow detection structure 4; the flow sensor 42 is used to convert the mechanical movement of the flow rotor 41 into an electrical signal.

[0032] See also Figure 3 In one embodiment, the water temperature control device further comprises a plurality of water diverter valves 5 disposed downstream of the flow detection structure 4. Specifically, the plurality of water diverter valves 5 are solenoid valves and can be arranged in series or in parallel.

[0033] See also Figure 3In one embodiment, the water temperature control device further includes a control device 6, which is electrically connected to the regulating valve 1, the temperature probe 7, the flow valve 3, and the flow detection structure 4. Specifically, the temperature probe 7 feeds back collected temperature data to the control device 6, which compares the collected temperature data with the set temperature and further controls the operation of the first linear stepper motor 15. Similarly, the flow detection structure 4 feeds back collected flow data to the control device 6, which compares the collected flow data with the set flow and further controls the operation of the second linear stepper motor 33.

[0034] See also Figure 3 and Figure 4 In one embodiment, the regulating valve 1 further includes a first tube 16 and a first valve cover 17 . The first valve cover 17 is detachably connected to the first tube 16 . The first valve cover 17 is disposed opposite a first linear stepper motor 15 . The first cavity 13 is located within the first tube 16 . The first linear stepper motor 15 passes through the first tube 16 and is connected to the valve stem 14 . Specifically, the first linear stepper motor 15 is detachably connected to the first valve cover 17 .

[0035] See also Figure 3 and Figure 4 In one embodiment, the flow valve 3 further includes a second tube 35 and a second valve cover 36, wherein the second valve cover 36 is detachably connected to the second pipe. The second cavity 31 is located within the second tube 35. The second linear stepper motor 33 passes through the second valve cover 36 and is connected to the plug 32. Specifically, the second linear stepper motor 33 is detachably connected to the second valve cover 36.

[0036] The regulating valve 1 and the flow valve 3 of this embodiment are connected by a plurality of detachable components, which can be easily assembled and maintained.

[0037] Specifically, a plurality of sealing rings 9 are provided between the first tube body 16 and the first valve cover 17 , and between the second tube body 35 and the second valve cover 36 . The sealing rings 9 are used to prevent water leakage.

[0038] See also Figure 3 In one embodiment, a mounting hole 37 is provided on the water mixing structure 2; the temperature probe 7 is inserted into the mounting hole 37; and a pressing piece 38 is also included, which is fixedly connected to the outer wall of the water mixing structure 2 and is used to fix the temperature probe 7 in the mounting hole 37.

[0039] See also Figure 5 Preferably, the water temperature control device also includes a shell 8, and the regulating valve 1, water mixing structure 2, flow valve 3, flow detection structure 4, water diversion valve 5 and control device 6 are all arranged in the shell 8.

[0040] In summary, the present invention precisely controls the position of the valve stem 14 by providing a first linear stepper motor 15, thereby enabling precise control of the amount of cold and hot water entering the device. Furthermore, before using the temperature probe 7 to measure the temperature of the mixed water within the device, the present invention also incorporates a water mixing structure 2 to fully mix the cold and hot water, ensuring accurate temperature detection results and thus enabling precise control of the water temperature.

[0041] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and utility model concept of the present invention, and all these changes or substitutions should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A water temperature control device, characterized in that: It includes a regulating valve, a water mixing structure, a flow valve and a flow detection structure connected in sequence; the regulating valve includes a cold water pipe interface, a hot water pipe interface, a first cavity, a valve stem and a first linear stepping motor; the first cavity is provided with a first water outlet and a first water inlet and a second water inlet arranged opposite to each other; the first water outlet, the first water inlet and the second water inlet are respectively connected to the water mixing structure, the cold water pipe interface and the hot water pipe interface; the valve stem is arranged in the first cavity; the first linear stepping motor is connected to the valve stem for adjusting the position of the valve stem; the valve stem is used to adjust the opening of the first water inlet and the second water inlet; the water mixing structure is provided with a temperature probe.

2. The water temperature control device according to claim 1, characterized in that: An S pipe is provided in the water mixing structure; the S pipe is connected to the first water outlet and the flow valve.

3. The water temperature control device according to claim 1, characterized in that: The flow valve includes a second cavity, a plug and a second linear stepper motor; the second cavity is connected to the water mixing structure and the flow detection structure respectively; the plug is arranged in the second cavity; the second linear stepper motor is connected to the plug for adjusting the position of the plug; a second water outlet is provided on the second cavity; the plug is used to adjust the opening of the second water outlet.

4. The water temperature control device according to claim 3, characterized in that: The flow valve also includes a third cavity, which is arranged between the second cavity and the flow detection structure; the second cavity and the third cavity are arranged in sequence along the moving direction of the plug; a positioning hole is provided in the third cavity; a positioning shaft is provided on the plug, and the positioning shaft extends along the axial direction of the second linear stepper motor and is inserted into the positioning hole in the third cavity.

5. The water temperature control device according to claim 1, characterized in that: A flow rotor is provided in the flow detection structure; a flow sensor is provided on the flow detection structure; and the flow sensor is used to convert the mechanical motion of the flow rotor into an electrical signal.

6. The water temperature control device according to claim 1, characterized in that: It also includes a plurality of water diversion valves arranged downstream of the flow detection structure.

7. The water temperature control device according to claim 1, characterized in that: It also includes a control device, which is electrically connected to the regulating valve, the temperature probe, the flow valve and the flow detection structure respectively.

8. The water temperature control device according to claim 1, characterized in that: The regulating valve further includes a first tube body and a first valve cover, wherein the first valve cover is detachably connected to the first tube body; the first valve cover is arranged opposite to the first linear stepping motor; and the first cavity is located in the first tube body; The first linear stepping motor passes through the first tube body and is connected to the valve stem.

9. The water temperature control device according to claim 3, characterized in that: The flow valve also includes a second tube body and a second valve cover, the second valve cover is detachably connected to the second pipeline; the second cavity is located in the second tube body; the second linear stepper motor passes through the second valve cover and is connected to the plug.

10. The water temperature control device according to claim 1, characterized in that: The water mixing structure is provided with a mounting hole; the temperature probe is inserted into the mounting hole; and a pressing piece is further included, which is fixedly connected to the outer wall of the water mixing structure and is used to fix the temperature probe in the mounting hole.

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