CN115435139A - Flow regulating valve, control method for home appliance, and home appliance - Google Patents

Abstract

The invention discloses a flow regulating valve, a control method of a household appliance and a household appliance, wherein the flow regulating valve includes a valve body, a first regulating assembly, a second regulating assembly and a detection assembly, and the valve body includes a valve seat and a The upper and rotatable valve stem; the first adjustment component can drive the valve stem to rotate; the second adjustment component can drive the valve stem to rotate; the detection component is used to detect the state of the first adjustment component when the second adjustment component is in the adjustment state And output a control signal for controlling the second regulating component. The above-mentioned flow regulating valve not only has the first regulating assembly and the second regulating assembly, but also has the characteristics of high flow regulating accuracy.

Description

Flow regulating valve, control method for home appliance, and home appliance

technical field

The invention relates to the technical field of household appliances, in particular to a flow regulating valve, a control method of household appliances and the household appliances.

Background technique

The gas and liquid flow of household appliances such as gas stoves, gas water heaters, and electric water heaters are driven by flow regulating valves. In the related art, the flow regulating valve has a first regulating component and a second regulating component, and the first regulating component and the second regulating component can respectively adjust the opening of the flow regulating valve, and then adjust the magnitude of the flow. When the flow regulating valve in the related art is used, it is easy to cause conflicts due to the simultaneous adjustment of the first regulating component and the second regulating component, which affects the accuracy of flow regulation.

Contents of the invention

The main purpose of the present invention is to provide a flow regulating valve having a first regulating component and a second regulating component and having high flow regulating accuracy.

In order to achieve the above object, the flow regulating valve proposed by the present invention includes:

a valve body comprising a valve seat and a valve stem mounted on said valve seat and rotatable; and

The first adjustment assembly, the second adjustment assembly and the detection assembly arranged on the valve seat, the first adjustment assembly and the second adjustment assembly can drive the valve stem to rotate, and the detection assembly is used for When the second regulating component is in the regulating state, the state of the first regulating component is detected and a control signal for controlling the second regulating component is output.

In one embodiment, the detection component includes a detection switch and a first trigger structure and a second trigger structure capable of intermittently triggering the detection switch;

When the second adjustment component is in the adjustment state, the first trigger structure and the second trigger structure trigger the detection switch at the same time each time;

When the second adjustment component is in the adjustment state, if the first adjustment component enters the adjustment state, there is a situation that the first trigger structure and the second trigger structure alternately trigger the detection switch.

In one embodiment, both the first triggering structure and the second triggering structure are rotatably arranged on the valve seat;

When the second adjustment component is in the adjustment state, the first trigger structure and the second trigger structure rotate synchronously;

When the second adjustment assembly is in the adjustment state, if the first adjustment assembly enters the adjustment state, the first trigger structure will rotate relative to the second trigger structure.

In one embodiment, a plurality of first triggering parts are arranged in the circumferential direction of the first triggering structure, and the plurality of first triggering parts can trigger the detection switch intermittently;

The circumference of the second trigger structure is provided with a plurality of second trigger parts, and the plurality of second trigger parts can trigger the detection switch intermittently;

When the second adjusting assembly is in the adjusted state, each of the first triggering parts and one of the second triggering parts are arranged correspondingly in the length direction of the valve stem, and constitute a triggering part, and a plurality of the triggering parts trigger the detection switch intermittently;

When the second adjustment component is in the adjustment state, if the first adjustment assembly enters the adjustment state, the first trigger part and the second trigger part alternately trigger the detection switch.

In an embodiment, when the first adjusting component is in an adjusting state, the first triggering structure rotates, and the second triggering structure does not rotate.

In one embodiment, the second adjustment assembly includes a motor, a first gear rotated on the output shaft of the motor, and a second gear fixedly connected to the valve stem and capable of meshing with the first gear ;

The second trigger structure is fixed on the output shaft, the first trigger structure is fixed on the first gear, and is located between the second trigger structure and the first gear;

When the first gear meshes with the second gear, the second trigger structure has a first position and a second position. In the first position, the motor can drive the The first gear is free to rotate, and in the second position, the first adjustment assembly can drive the first gear to rotate freely through the second gear.

In one embodiment, a first protrusion is provided on a side of the second trigger structure close to the first gear, and a second protrusion is provided on a side of the first gear close to the second trigger structure;

In the first position, the first protrusion and the second protrusion contact in the circumferential direction of the output shaft, and in the second position, the first protrusion and the second protrusion contact spaced in the circumferential direction of the output shaft.

The present invention also provides a control method of a household appliance. The household appliance includes a flow regulating valve, and the flow regulating valve includes a valve body with a valve stem, a first regulating assembly and a second regulating assembly for driving the valve stem to rotate. Two adjustment components and a detection component for detecting the state of the first adjustment component, the control method of the household appliance includes the following steps:

When the second adjustment component is in the adjustment state, acquiring the state signal of the first adjustment component detected by the detection component;

When it is determined according to the detected state signal of the first regulating component that the first regulating component enters the regulating state, the second regulating component is controlled to exit the regulating state.

In one embodiment, the detection component includes a detection switch, a first trigger structure capable of intermittently triggering the detection switch, and a second trigger structure. When the second adjustment component is in the adjustment state, the first trigger structure trigger the detection switch at the same time as the second trigger structure each time, when the second adjustment component is in the adjustment state, if the first adjustment component enters the adjustment state, the first trigger structure and the The second trigger structure alternately triggers the detection switch;

The step of acquiring the state signal of the first regulating component detected by the detecting component includes the following steps:

Obtain the first time period of the first trigger and the second trigger of the detection switch, and obtain the second time period of the second trigger and the third trigger of the detection switch;

The step of determining that the first regulating component enters the regulating state according to the detected state signal of the first regulating component comprises the following steps:

comparing the first time period with the second time period;

When the first time period is different from the second time period, it is determined that the first regulation component enters the regulation state.

In one embodiment, the following steps are also included:

When the household appliance starts to work, the second regulating component is controlled to enter the regulating state, and the second regulating component intelligently regulates the rotation of the valve stem with the target flow.

In one embodiment, the flow regulating valve further includes a switch;

Before the step of controlling the second adjustment component to enter the adjustment state, the following steps are also included:

controlling the first adjustment component to enter the adjustment state, and making the valve stem rotate from the closed position to the preset flow position by a preset angle, triggering the switching switch of the flow adjustment valve, so that the second adjustment component enters the pre-adjustment state;

The second regulating component is controlled to enter the regulating state from the pre-regulating state.

In one embodiment, before the step of controlling the second adjustment component to enter the adjustment state, the following steps are further included:

Determine the current flow rate of the flow regulating valve;

After the step of controlling the second adjustment component to enter the adjustment state, the following steps are further included:

The second adjustment component intelligently adjusts the rotation of the valve stem based on the current flow rate and the target flow rate.

The present invention also provides a household appliance, comprising the above-mentioned flow regulating valve and a controller electrically connected to the detection component and the second regulation component;

When the first adjustment component enters the adjustment state, the detection component outputs a control signal, and the controller controls the second adjustment component to exit the adjustment according to the control signal.

The state of the first regulating component of the above-mentioned flow regulating valve includes entering the regulating state and not entering the regulating state. When the second adjustment component is in the adjustment state, if the detection component detects that the first adjustment component enters the adjustment state, then the first adjustment component and the second adjustment component simultaneously adjust the valve stem, and the detection component outputs a first control signal; If the detection component detects that the first adjustment component is not in the adjustment state, the second adjustment component adjusts the valve stem at this time, while the first adjustment component does not adjust the valve stem, and the detection component outputs a second control signal. Therefore, the controller electrically connected to the detection component and the second adjustment component can determine the state of the first adjustment component according to the first control signal and the second control signal, and when it is determined that the first adjustment component does not enter the adjustment state, the controller controls the second adjustment component. The adjustment component continues to adjust; when it is determined that the first adjustment component enters the adjustment state, the controller can control the second adjustment component to exit the adjustment, that is, the controller can control the second adjustment component to stop the adjustment. In this way, it is possible to avoid adjustment disorder caused by simultaneous adjustment of the valve stem by the first adjustment assembly and the second adjustment assembly, that is, to avoid the conflict between the adjustment of the first adjustment assembly and the adjustment of the second adjustment assembly. situation occurs, so that the accuracy of the adjustment can be ensured.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative effort.

Fig. 1 is a three-dimensional structural schematic diagram of a flow regulating valve according to an embodiment of the present invention;

Fig. 2 is a partial exploded view of the flow regulating valve shown in Fig. 1 after the installation box is removed;

Fig. 3 is a partially exploded view of the flow regulating valve shown in Fig. 1;

Fig. 4 is a partially exploded view of the flow regulating valve shown in Fig. 3;

Figure 5 is a partial enlarged view in Figure 4;

Figure 6 is a partial enlarged view in Figure 5;

Fig. 7 is a structural schematic diagram of another viewing angle of Fig. 5;

FIG. 8 is a schematic structural view of the first protrusion and the second protrusion in FIG. 5 in an initial state;

Fig. 9 is a structural schematic view of the second protrusion in Fig. 8 after being driven by the first protrusion and rotated 270° clockwise;

Fig. 10 is a three-dimensional structural schematic diagram of the valve stem, the opening switch and the changeover switch in Fig. 1;

FIG. 11 is a schematic perspective view of the three-dimensional structure of FIG. 10;

FIG. 12 is a flowchart of a control method of a household appliance according to an embodiment of the present invention.

Explanation of reference numbers:

label name label name 10 flow control valve 200 seat 300 Stem 400 first adjustment component 500 second adjustment component 600 Detection components 610 detection switch 620 first trigger structure 630 second trigger structure 622 first trigger 632 second trigger 510 motor 520 first gear 530 second gear 512 Output shaft 630a first bump 520a second bump 514 ontology 700 turn on the switch 310 first paragraph 320 second paragraph 800 toggle switch 330 third paragraph

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second" and so on in the embodiments of the present invention, the descriptions of "first", "second" and so on are only for descriptive purposes, and should not be interpreted as indicating or implying Its relative importance or implicitly indicates the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, if the meaning of "and/or" appearing in the whole text includes three parallel schemes, taking "A and/or B" as an example, it includes scheme A, scheme B, or schemes in which both A and B are satisfied . In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present invention.

The invention provides a flow regulating valve.

In the embodiment of the present invention, as shown in FIGS. 1-4 , the flow regulating valve 10 includes a valve body (including a valve seat 200 and a valve stem 300 ), a first regulating assembly 400 , a second regulating assembly 500 and a detection assembly 600 .

The valve stem 300 is rotatably disposed on the valve seat 200 , that is, the valve stem 300 can rotate relative to the valve seat 200 . The valve stem 300 rotates relative to the valve seat 200 to adjust the opening of the valve core of the flow regulating valve 10 , thereby realizing the adjustment of the flow rate. In this embodiment, the valve body of the flow regulating valve 10 is a ball valve or a plug valve.

In this embodiment, the valve stem 300 can rotate within a first angle range. For gas stoves, gas water heaters, electric water heaters and other household appliances, the difference between the upper limit and the lower limit of the first angle range is usually less than 360°, that is, the difference between the gas stove, gas water heater, electric water heater and other household appliances. The valve stem 300 is generally not capable of 360° rotation. Specifically, in this embodiment, the lower limit of the first angle range is 0°, and the upper limit of the first angle range is less than or equal to 270°. More specifically, in this embodiment, the upper limit of the first angle range is not less than 180°. In this way, it can meet the large-scale adjustment of the flow rate of household appliances such as gas stoves, gas water heaters, and electric water heaters.

The first adjusting component 400 is disposed on the valve seat 200 and can drive the valve stem 300 to rotate. Specifically, in this embodiment, the first adjustment assembly 400 can drive the valve rod 300 to rotate within the first angle range. It can be understood that, in other embodiments, the first adjusting assembly 400 can drive the valve stem 300 to rotate within the second angle range, wherein the lower limit of the second angle range is the same as the lower limit of the first angle range, but the second The upper limit of the second angle range is different from the upper limit of the first angle range.

The second regulating assembly 500 is disposed on the valve seat 200 and can drive the valve stem 300 to rotate. Specifically, in this embodiment, the second adjustment assembly 500 can drive the valve stem 300 to rotate within the first angle range. It can be understood that, in other embodiments, the second adjustment assembly 500 can drive the valve stem 300 to rotate within the third angle range, wherein the lower limit of the third angle range is the same as the lower limit of the first angle range, but the second The upper limit value of the three-angle range is different from the upper limit value of the first angle range. The upper limit of the third angle range may be the same as or different from the upper limit of the second angle range.

The detecting component 600 is arranged on the valve seat 200 and is used for detecting the state of the first regulating component 400 and outputting a control signal for controlling the second regulating component 500 when the second regulating component 500 is in the regulating state.

The state of the first regulating component 400 includes entering a regulating state and not entering a regulating state. When the second adjustment assembly 500 is in the adjustment state, if the detection assembly 600 detects that the first adjustment assembly 400 enters the adjustment state, then the first adjustment assembly 400 and the second adjustment assembly 500 simultaneously adjust the valve stem 300, and the detection assembly 600 outputs the first control signal; if the detection component 600 detects that the first adjustment component 400 is not in the adjustment state, then the second adjustment component 500 adjusts the valve stem 300 at this time, while the first adjustment component 400 does not adjust the valve stem 300 , the detection component 600 outputs a second control signal.

Therefore, the controller of the electrical connection detection component 600 and the second regulating component 500 can determine the state of the first regulating component 400 according to the first control signal and the second control signal, and when it is determined that the first regulating component 400 is not in the regulating state, the control The controller controls the second adjustment component 500 to continue to adjust; when it is determined that the first adjustment component 400 enters the adjustment state, the controller can control the second adjustment component 500 to exit the adjustment, that is, the controller can control the second adjustment component 500 to stop the adjustment. In this way, it is possible to avoid adjustment disorder caused by the first adjustment assembly 400 and the second adjustment assembly 500 adjusting the valve rod 300 at the same time, that is, the adjustment of the first adjustment assembly 400 and the adjustment of the second adjustment assembly 500 can be avoided. In the event of a conflict between the adjustments, the accuracy of the adjustment can be ensured.

In this embodiment, the above-mentioned controller is a controller of a household appliance, at this time, the flow regulating valve 10 may not include a controller. It can be understood that, in other embodiments, the above-mentioned controller may also be the controller of the flow regulating valve 10, and in this case, the flow regulating valve 10 includes a controller.

It should be noted that, in this embodiment, the control signal output by the detection component 600 is used to control the second adjustment component 500, that is, the second adjustment component 500 is an intelligent adjustment component (including motors and other components capable of intelligent control).

In some embodiments, both the first adjustment assembly 400 and the second adjustment assembly 500 are intelligent adjustment assemblies (including motors and other components capable of intelligent control). In this way, when the second regulating component 500 is in the regulating state, it is very convenient for the detection component 600 to detect the state of the first regulating component 400 and output a control signal for controlling the second regulating component 500 . For example, both the motor of the first adjustment assembly 400 and the motor of the second adjustment assembly 500 are electrically connected to the detection assembly 600. When the second adjustment assembly 500 is in the adjustment state, if the detection assembly 600 detects the If the working signal is received, it is determined that the first regulating component 400 enters the regulating state.

When both the first adjustment component 400 and the second adjustment component 500 are intelligent adjustment components, the first adjustment component 400 and the second adjustment component 500 may be completely the same or different. In this embodiment, the first adjustment assembly 400 and the second adjustment assembly 500 are identical, and both the first adjustment assembly 400 and the second adjustment assembly 500 include a motor arranged on the valve seat 200 and fixed on the output shaft of the motor. The first gear and the second gear are fixedly sleeved on the valve stem 300, and the first gear and the second gear can mesh.

In some embodiments, one of the first adjustment component 400 and the second adjustment component 500 is an intelligent adjustment component, and the other is a manual adjustment component. In this way, the flow regulating valve 10 can realize both manual adjustment and intelligent adjustment. The flow regulating valve 10 with a manual adjustment component can realize manual adjustment, and manual adjustment is usually not prone to failure, but it is inconvenient to use. The flow regulating valve 10 with intelligent regulating components can realize intelligent regulation and is very convenient to use, but it is prone to failure (eg, motor failure, power supply interruption, etc.) and cannot be used normally. The flow regulating valve 10 that can realize both manual adjustment and intelligent adjustment can not only solve the problem of convenient use but also solve the problem of normal use when a fault occurs.

In this embodiment, the first adjustment component 400 is a manual adjustment component, and the second adjustment component 500 is an intelligent adjustment component.

In some embodiments, the first adjustment component 400 is located in the extending direction of the valve stem 300 and connected to the end of the valve stem 300 . Taking a gas cooker as an example, the first adjustment assembly 400 is installed on the panel of the gas cooker and connected to the end of the valve stem 300 . At this time, the first adjustment assembly 400 may be a knob of the gas cooker. In some embodiments, the first adjustment assembly 400 includes one end of the valve stem 300 . Taking a gas cooker as an example, the valve stem 300 is installed on the panel of the gas cooker. At this time, the end of the valve stem 300 may be a knob of the gas cooker.

In this embodiment, as shown in FIGS. 2-5 , the detection component 600 includes a detection switch 610 , a first trigger structure 620 and a second trigger structure 630 . The detection switch 610 is disposed on the valve seat 200 . The first trigger structure 620 is disposed on the valve seat 200 and can trigger the detection switch 610 intermittently. The second trigger structure 630 is disposed on the valve seat 200 and can trigger the detection switch 610 intermittently. Wherein, when the second adjustment assembly 500 is in the adjustment state (at this time, the first adjustment assembly 400 is not in the adjustment state), the first trigger structure 620 and the second trigger structure 630 trigger the detection switch 610 at the same time each time, that is, in When the second adjustment component 500 is in the adjustment state, the detection switch 610 may be intermittently triggered multiple times, and each triggering of the detection switch 610 is completed by the first trigger structure 620 and the second trigger structure 630 together. When the second adjustment assembly 500 is in the adjustment state, if the first adjustment assembly 400 enters the adjustment state, the first trigger structure 620 and the second trigger structure 630 alternately trigger the detection switch 610 . In this way, the state of the first regulating component 400 can be determined according to the time period between two adjacent triggers of the detection switch 610 (detailed analysis to follow).

In this embodiment, both the first trigger structure 620 and the second trigger structure 630 are rotatably arranged on the valve seat 200, that is, the first trigger structure 620 can rotate relative to the valve seat 200, and the second trigger structure 630 can rotate relative to the valve seat. 200 can also be rotated.

Wherein, when the second adjustment assembly 500 is in the adjustment state (at this time, the first adjustment assembly 400 is not in the adjustment state), the first trigger structure 620 and the second trigger structure 630 rotate synchronously, and the first trigger structure 620 and the second trigger structure 630 rotate synchronously. During the synchronous rotation of the trigger structure 630 , the first trigger structure 620 and the second trigger structure 630 trigger the detection switch 610 simultaneously each time.

When the second adjustment assembly 500 is in the adjustment state, if the first adjustment assembly 400 enters the adjustment state, the first trigger structure 620 rotates relative to the second trigger structure 630, and there is an alternate trigger detection of the first trigger structure 620 and the second trigger structure 630. The case of switch 610.

In this embodiment, the detection switch 610 is a micro switch. Wherein, the micro switch includes a normally closed micro switch and a normally open micro switch. If the normally closed micro switch is opened at a certain moment, a trigger signal will be generated, and if the normally open micro switch is closed at a certain moment, a trigger signal will be generated. Specifically, in this embodiment, the micro switch is a normally open micro switch.

In this embodiment, the first triggering structure 620 includes a first triggering portion 622 . There are multiple first triggering parts 622 , and the multiple first triggering parts 622 are arranged at intervals along the circumferential direction of the first triggering structure 620 . During the rotation of the first trigger structure 620 , the plurality of first trigger parts 622 can trigger the detection switch 610 intermittently.

The second triggering structure 630 includes a second triggering portion 632 . There are multiple second triggering parts 632 , and the multiple second triggering parts 632 are arranged at intervals along the circumferential direction of the second triggering structure 630 . During the rotation process of the second trigger structure 630 , the plurality of second trigger parts 632 can trigger the detection switch 610 intermittently.

When the second adjustment assembly 500 is in the adjustment state (at this time, when the first adjustment assembly 400 is not in the adjustment state), the first trigger structure 620 and the second trigger structure 630 rotate synchronously. During the synchronous rotation of the first triggering structure 620 and the second triggering structure 630, in the length direction (up and down direction) of the valve stem 300, a plurality of first triggering parts 622 and a plurality of second triggering parts 632 are arranged one-to-one. , that is, each first trigger portion 622 and a second trigger portion 632 are correspondingly arranged in the length direction (up and down direction) of the valve stem 300, wherein each first trigger portion 622 and the corresponding second trigger portion 632 constitute a trigger pieces. During the synchronous rotation of the first trigger structure 620 and the second trigger structure 630 , a plurality of trigger elements can trigger the detection switch 610 intermittently. That is, when the second adjustment assembly 500 is in the adjustment state, when the first trigger part 622 of the first trigger structure 620 triggers the detection switch 610 , the second trigger part 632 of the second trigger structure 630 also triggers the detection switch 610 . In this way, when the second adjustment assembly 500 is in the adjustment state (at this time, the first adjustment assembly 400 is not in the adjustment state), the flow rate can also be determined through the detection switch 610 , the first trigger structure 620 and the second trigger structure 630 . At this time, the time period between two adjacent triggers of the detection switch 610 is T1.

When the second adjustment assembly 500 is in the adjustment state, if the first adjustment assembly 400 suddenly enters the adjustment state, the first trigger structure 620 will rotate relative to the second trigger structure 630, that is, when the second adjustment assembly 500 is in the adjustment state , if the first adjustment component 400 suddenly enters the adjustment state, the first trigger structure 620 and the second trigger structure 630 will not rotate synchronously. At this time, the first trigger part 622 of the first trigger structure 620 and the second trigger part 632 of the second trigger structure 630 will alternately trigger the detection switch 610, and the time period between two adjacent triggers of the detection switch 610 is T2 , the time period T2 is different from the time period T1, and the time period T2 is usually smaller than the time period T1.

In the above-mentioned flow regulating valve 10, when the second regulating assembly 500 is in the regulating state (at this time, the first regulating assembly 400 is not in the regulating state), the time period T1 of two adjacent triggers of the detection switch 610 can be recorded first, and then The time period T2 between two adjacent triggers of the detection switch 610 is obtained in real time. If the time period T1 is the same as the time period T2, the first regulating component 400 is not in the regulating state; if the time period T1 is different from the time period T2, the first regulating component 400 is in the regulating state.

In this embodiment, the plurality of first triggering parts 622 and the plurality of second triggering parts 632 are arranged at equal intervals, and the distance between two adjacent first triggering parts 622 and the distance between two adjacent second triggering parts 632 The spacing between them is the same. In this way, it can be determined whether the first regulating component 400 enters the regulating state when the second regulating component 500 is in the regulating state according to whether the time period T1 is the same or different from the time period T2.

It can be understood that, in other embodiments, the plurality of first triggering parts 622 and the plurality of second triggering parts 632 may also be arranged at unequal intervals. At this time, it may be determined whether the first regulating component 400 enters the regulating state when the second regulating component 500 is in the regulating state according to the change law of the time period T1 and the time period T2.

For example, a plurality of first triggering parts 622 are divided into multiple groups, each group includes three first triggering parts 622, and the distance between two adjacent first triggering parts 622 in a group is smaller than the distance between adjacent two groups . When the second adjustment assembly 500 is in the adjustment state (at this time, the first adjustment assembly 400 is not in the adjustment state), record the time period T3 between adjacent two groups, and record the time periods T4, T3 and T4 in the group different. When the second regulating component 500 is in the regulating state (at this time, the first regulating component 400 is not in the regulating state), the periodic variation rule may be T3, T3, T4, T3, T3, T4.... When the second regulating component 500 is in the regulating state, if the first regulating component 400 suddenly enters the regulating state, the periodic variation law may be T3, T5, T6 . . . . In this way, when T3 and T3 cannot be continuously obtained, it can be considered that the first regulation component 400 suddenly enters the regulation state; when T3, T3 and T4 cannot be continuously obtained, it can also be considered that the first regulation component 400 suddenly enters the regulation state.

In this embodiment, the distance between two adjacent first triggering portions 622 is greater than the distance between two adjacent teeth of the first gear 520 , and the number of first triggering portions 622 is greater than or equal to eight. In this way, the distance between two adjacent first triggering parts 622 can be avoided from being too small or too large, so that the triggering frequency of the detection switch 610 can be moderate, neither too fast nor too slow. Specifically, in this embodiment, the number of the first trigger parts 622 is greater than or equal to ten and less than or equal to twenty.

In this embodiment, both the first triggering structure 620 and the second triggering structure 630 are incomplete gears. The pitch circle diameter of the incomplete gear is smaller than the pitch circle diameter of the first gear 520 . In this way, on the premise that the trigger detection switch 610 is satisfied, the size of the first trigger structure 620 and the second trigger structure 630 can be made smaller, so as to facilitate obtaining the flow regulating valve 10 with a smaller size.

In this embodiment, when the first adjustment assembly 400 is in the adjustment state (at this time, the second adjustment assembly 500 is not in the adjustment state), the first trigger structure 620 rotates, and the second trigger structure 630 does not rotate. That is, in this embodiment, the first adjusting component 400 can drive the first trigger structure 620 to rotate, but cannot drive the second trigger structure 630 to rotate. The second adjustment assembly 500 can drive the first trigger structure 620 and the second trigger structure 630 to rotate synchronously. In this way, when the first adjustment assembly 400 is in the adjustment state (at this time, the second adjustment assembly 500 is not in the adjustment state), the flow rate can be determined through the detection switch 610 and the first trigger structure 620 .

When the second adjustment assembly 500 is in the adjustment state, control the rotation speed of the first trigger structure 620 to be greater than the rotation speed of the second trigger structure 630, or control the rotation speed of the first trigger structure 620 to be lower than the rotation speed of the second trigger structure 630, Both can realize the rotation of the first trigger structure 620 relative to the second trigger structure 630 , that is, realize the asynchronous rotation of the first trigger structure 620 and the second trigger structure 630 . In practical applications, when the first adjustment component 400 is a manual adjustment component and the second adjustment component 500 is an intelligent adjustment component, when the second adjustment component 500 is in the adjustment state, if the first adjustment component 400 suddenly enters the adjustment state, the second adjustment The rotation speed of a trigger structure 620 is greater than the rotation speed of the second trigger structure 630 .

In this embodiment, both the first adjusting assembly 400 and the second adjusting assembly 500 can drive the valve rod 300 to rotate within the first angle range without interfering with each other. That is, the first adjustment assembly 400 can drive the valve stem 300 to rotate within the first angle range, and the second adjustment assembly 500 can also drive the valve stem 300 to rotate within the first angle range, and the first adjustment assembly 400 drives the valve stem to rotate within the first angle range. When 300 rotates within the first angle range, the second adjustment assembly 500 does not interfere with the first adjustment assembly 400 to drive the valve stem 300 to rotate within the first angle range, and the second adjustment assembly 500 drives the valve stem 300 to rotate within the first angle range During internal rotation, the first adjustment component 400 does not interfere with the second adjustment component 500 to drive the valve stem 300 to rotate within the first angle range. In this way, both the adjustment of the first adjustment assembly 400 and the adjustment of the second adjustment assembly 500 can be made smooth.

In this embodiment, the second adjustment assembly 500 includes a motor 510 , a first gear 520 and a second gear 530 . The motor 510 is disposed on the valve seat 200 . The first gear 520 is rotatably disposed on the output shaft 512 of the motor 510 . The second gear 530 is fixedly connected with the valve stem 300 and can mesh with the first gear 520 . The second triggering structure 630 is fixed on the output shaft 512 of the motor 510 . The first trigger structure 620 is fixed on the first gear 520 and is located between the second trigger structure 630 and the first gear 520 . The motor 510 can drive the first gear 520 to rotate freely through the second trigger structure 630 . The first adjusting assembly 400 can drive the first gear 510 to rotate freely through the second gear 530 , that is, the second trigger structure 630 does not interfere with the first adjusting assembly 400 driving the first gear 510 to rotate through the second gear 530 .

The motor 510 can drive the first gear 520 to rotate freely through the second trigger structure 630, so that the first gear 520 can drive the second gear 530 fixed on the valve stem 300 to rotate, and then drive the valve stem 300 to rotate, thereby realizing the intelligence of the flow rate adjust. When manually adjusting the flow rate, manually rotate the first adjustment assembly 400, the valve stem 300 can drive the second gear 530 to rotate, and the second gear 530 can drive the first gear 520 to rotate, at the lower limit of the valve stem 300 from the first angle range During the process of moving to the upper limit of the first angle range and the process of the valve rod 300 moving from the upper limit of the first angle range to the lower limit of the first angle range, there will be no triggering structure 630 Interference causes the first gear 520 to fail to rotate, that is, the second trigger structure 630 will not interfere with the adjustment of the first adjustment assembly 400 . The above-mentioned structure can not only realize intelligent adjustment and manual adjustment, but also judge whether to start manual adjustment during intelligent adjustment, so as to avoid conflict between intelligent adjustment and manual adjustment. In addition, the above-mentioned structure is simple, reliable and easy to install.

In this embodiment, when the first gear 520 meshes with the second gear 530, the second trigger structure 630 has a first position and a second position. In the first position, the motor 510 can drive the first gear through the second trigger structure 630. The gear 520 is free to rotate. In the second position, the first adjusting assembly 400 can drive the first gear 520 to rotate freely through the second gear 530 .

In the first position, the motor 510 can drive the first gear 520 to rotate freely through the second trigger structure 630, so that the first gear 520 can drive the second gear 530 fixed on the valve stem 300 to rotate freely, and then drive the valve stem 300 to rotate, In this way, the intelligent adjustment of the flow is realized, and in the process of the valve stem 300 moving from the lower limit value of the first angle range to the upper limit value of the first angle range and when the valve stem 300 moves from the upper limit value of the first angle range During the process to the lower limit of the first angle range, the first adjustment component (manual adjustment) 400 will not interfere with the adjustment of the second adjustment component (smart adjustment component) 500 .

In the second position, the second trigger structure 630 does not interfere with the first adjustment assembly 400 to drive the first gear 520 to rotate through the second gear 530, that is, when manually adjusting the flow rate, the manual rotation of the valve stem 300 can drive the second gear 530 to rotate freely , the second gear 530 can drive the first gear 520 to rotate freely, when the valve stem 300 moves from the lower limit value of the first angle range to the upper limit value of the first angle range and when the valve stem 300 moves from the first angle range In the process of moving the upper limit value of the upper limit value of the first angle range to the lower limit value of the first angle range, the situation that the first gear 520 cannot rotate freely due to the interference of the second trigger structure 630 will not occur, that is, the second adjustment assembly 500 will not The adjustment of the first adjustment assembly 400 is interfered with.

Moreover, the above-mentioned second adjustment assembly (intelligent adjustment assembly) 500 cooperates with the first adjustment assembly (manual adjustment assembly) 400, no additional fluid pipelines are required, the difficulty of the installation process and the risk of air leakage are reduced, and the originality of the household appliance is not affected. There are installation process and fluid pipeline installation process.

In this embodiment, the first gear 520, the first triggering structure 620 and the second triggering structure 630 are sleeved on the output shaft 512 of the motor 510, and the first triggering structure 620 and the second triggering structure 630 are located on the first between the gear 520 and the body 514 of the motor 510 . In this way, it is more convenient for the motor 510 to drive the first gear 520 to rotate stably through the second trigger structure 630 , and it can avoid the position of the detection switch 610 cooperating with the first trigger structure 620 and the second trigger structure 630 from being too high.

In this embodiment, as shown in FIG. 6 and FIG. 7 , the second trigger structure 630 and the first gear 520 are sleeved on the output shaft 512 of the motor 510 . A side of the second trigger structure 630 close to the first gear 520 is provided with a first protrusion 630a. A side of the first gear 520 close to the second triggering structure 630 is provided with a second protrusion 520a. In the first position, the first protrusion 630 a is in contact with the second protrusion 520 a in the circumferential direction of the output shaft 512 . In the second position, the first protrusion 630 a is spaced apart from the second protrusion 520 a in the circumferential direction of the output shaft 512 . In this way, it is not only convenient for the first adjustment assembly (manual adjustment assembly) 400 and the second adjustment assembly (smart adjustment assembly) 500 to adjust the flow rate, but also for the realization that the first adjustment assembly 400 and the second adjustment assembly 500 do not interfere with each other.

In this embodiment, the second trigger structure 630 is sheathed on the output shaft 512 of the motor 510 through a central through hole such as a D-shaped hole, a hexagonal hole or a U-shaped hole. The shape of the outer wall of the output shaft 512 is adapted to the shape of the central through hole, that is, when the central through hole is a D-shaped hole, the outer wall of the output shaft 512 has a D-shaped outer wall. In this way, the second trigger structure 630 is conveniently fixed on the output shaft 512 of the motor 510 to rotate synchronously with the output shaft 512 of the motor 510 . It can be understood that, in other embodiments, the shape of the outer wall of the output shaft 512 may not match the shape of the central through hole. In this case, the second trigger structure 630 may be fixed to the motor 510 by means of welding or gluing. On the output shaft 512.

In this embodiment, the first gear 520 is sleeved on the output shaft 512 of the motor 510 through a circular hole. In this way, the first gear 520 is facilitated to rotate relative to the output shaft 512 , so that the second trigger structure 630 drives the first gear 520 to rotate on the output shaft 512 . In this embodiment, the first gear 520 is interference-fitted on the output shaft 512 of the motor 510 through a circular hole, and the friction force between the first gear 520 and the output shaft 512 of the motor 510 is smaller than that of the motor 510 through the second gear. The driving force applied by the trigger structure 630 to the first gear 520 . In this way, not only the first gear 520 can be disposed on the output shaft 512 of the motor 510 , but also the first gear 520 can be rotated relative to the output shaft 512 of the motor 510 .

In this embodiment, the second gear 530 is disposed on the valve stem 300 through a central through hole such as a D-shaped hole, a hexagonal hole or a U-shaped socket. The shape of the outer wall of the valve stem 300 is adapted to the shape of the central through hole, that is, when the central through hole is a D-shaped hole, the outer wall of the valve stem 300 has a D-shaped outer wall. In this way, it is convenient for the second gear 530 to be fixed on the valve stem 300 to rotate synchronously with the valve stem 300 . It can be understood that in other embodiments, the shape of the outer wall of the valve stem 300 may not match the shape of the central through hole. In this case, the second gear 530 may be fixed on the valve stem 300 by means of welding or glue. .

In this embodiment, the rotation direction of the first gear 520 is opposite to the rotation direction of the second gear 530, and the diameter of the pitch circle of the first gear 520 is approximately the same as that of the second gear 530, that is, the first The transmission ratio of the gear 520 and the second gear 530 is approximately 1. In this way, assuming that after the first gear 520 rotates clockwise by the first angle, the second gear 530 meshing with the first gear 520 will rotate counterclockwise by the first angle. In this way, it is more convenient to control the first adjustment assembly 400 and the second adjustment assembly 500 without interfering with each other. It can be understood that, in other embodiments, the transmission ratio of the first gear 520 and the second gear 530 may also be greater than 1 or less than 1.

In this embodiment, during the process of manually adjusting the flow rate, when the valve rod 300 rotates in the first direction (for example, counterclockwise) and moves from the lower limit position of the first angle range to the upper limit position of the first angle range At the limit position, the second protrusion 520a can rotate in a second direction (opposite to the first direction, for example, clockwise), and move from the lower limit position of the second angle range to the upper limit of the second angle range value position. The upper limit value of the second angle range is the same as the upper limit value of the first angle range (the numerical value is the same).

In the second position, the first protrusion 630a is located in a third angle range, the lower limit of the third angle range is the same as the upper limit of the second angle range, and the lower limit of the second angle range is in the second direction. 0°, the upper limit of the third angle range is 360° in the second direction. Specifically, in this embodiment, the lower limit of the first angle range is 0° in the first direction, the upper limit of the first angle range is 270° in the first direction, and the lower limit of the third angle range is The value is the same as the upper limit value of the second angle range, which is 270° in the second direction.

In this embodiment, a gas stove is taken as an example for specific description:

The valve stem 200 can rotate within the range of 0°-270°. As shown in Figure 8, in the initial position, the first protrusion 630a is located between 270°-360°, and the second protrusion 520a is located at 0° (that is, 360°). At this time, the first protrusion 630a and the second protrusion 520a The two protrusions 520 a are spaced apart in the circumferential direction of the output shaft 512 .

When the intelligent adjustment is started, after the motor 510 drives the first protrusion 630a to rotate clockwise by a second angle, the second protrusion 520a contacts the first protrusion 630a in the circumferential direction of the output shaft 512 to form a shifting structure, so that the motor 510 The first gear 520 (second protrusion 520a) can be driven to rotate clockwise by the second trigger structure 630 (first protrusion 630a). As shown in Figures 8 and 9, when the second protrusion 520a rotates clockwise from the 0° position to the 270° position, that is, after the first gear 520 rotates 270° clockwise, the second gear 530 and the valve stem 300 rotates 270° counterclockwise, that is, the second gear 530 and the valve stem 300 rotate counterclockwise from the 0° position to the 270° position. At this time, if the second gear 530 and the valve stem 300 need to be rotated from the 270° position to the 0° position, that is, the second gear 530 and the valve stem 300 need to be rotated 270° clockwise:

The motor 510 can be reversed first to drive the first protrusion 630a to rotate counterclockwise by 270° + the second angle, then return to the initial position (between 270°-360°), and then manually adjust so that the second protrusion 520a Rotate 270° counterclockwise so that the 270° position rotates to the 0° position. Since the first protrusion 630a has returned to the initial position at this time, the first protrusion 630a and the second protrusion 520a are always spaced apart from each other in the circumferential direction of the output shaft 512 during the manual adjustment, and no interference will occur.

It is also possible to reverse the motor 510, drive the first protrusion 630a to rotate counterclockwise 360°, rotate to the other side of the second protrusion 520a, and make contact with this side, and then adjust intelligently, the motor 510 passes through the first protrusion 630a drives the second protrusion 520a to rotate counterclockwise by 270°, so that the 270° position rotates to the 0° position. Finally, the motor 510 is reversed to drive the first protrusion 630a to rotate clockwise by 360°-the second angle, and then return to the initial position (between 270°-360°).

In this embodiment, as shown in FIGS. 1-5 , the valve seat 200 includes an installation box 210 . The installation box 210 includes a box body 212 and a box cover 214 . The box body 212 is sheathed on the valve stem 300 . The second adjustment component (intelligent adjustment component) 500 and the detection switch 610 are both arranged in the box body 212 . The box cover 214 is sleeved on the valve stem 300 and closes the open end of the box body 212 . Wherein, the valve rod 300 can rotate relative to the installation box 210 . Setting the installation box 210 can better protect the second adjustment component (smart adjustment component) 500 and the detection switch 610 .

In this embodiment, as shown in FIG. 4 , FIG. 10 and FIG. 11 , the flow regulating valve 10 further includes an activation switch 700 . The start switch 700 is disposed on the valve seat 200 . The valve stem 300 has a flow off position. When the valve stem 300 is in the flow closing position, it can be considered that there is no flow passing through the flow regulating valve 10 . In the flow off position, the valve stem 300 is movable along its length to have a closed position and an activated position. Taking a gas cooker as an example, the start switch 700 is the ignition switch of the gas cooker, the closed position is the fire off position, and the start position is the ignition position.

In the closed position, the second gear 530 is spaced apart from the first gear 520 in the length direction of the valve stem 300 . In the start position, the second gear 530 meshes with the first gear 510, and the valve stem 300 triggers the start switch 700, so that the controller of the household appliance is energized, so that the motor 510, the detection switch 610, etc. are energized (at this time, the motor 510 does not rotate. ). Specifically, pressing the valve stem 300 downwards can switch the position of the valve stem 300 from the closed position to the start position, and when the downward pressure applied to the valve stem 300 is removed (at this time, the valve stem 300 is still in the flow closing position , does not rotate), the position of the valve rod 300 can be switched from the start position to the closed position.

Specifically, in this embodiment, the valve stem 300 has a first segment 310 and a second segment 320 . The second segment 320 is located below the first segment 310 , and the outer diameter of the second segment 320 is smaller than the outer diameter of the yth segment 310 . In the off position, the pressing portion 710 of the activation switch 700 is facing and spaced apart from the outer wall of the second section 320 ; By arranging the first segment 310 and the second segment 320 with different outer diameters, it is very convenient to activate the activation switch 700 .

It can be understood that in other embodiments, the valve stem 300 has a first segment 310 and a second segment 320 . The second segment 320 is located below the first segment 310 , and the outer diameter of the second segment 320 is larger than the outer diameter of the first segment 310 . In the closed position, the pressing portion 710 of the activation switch 700 is directly opposed to and interferes with the outer wall of the second section 320 ;

In this embodiment, the start switch 700 is a micro switch. Wherein, the micro switch includes a normally closed micro switch and a normally open micro switch. If the normally closed micro switch is opened at a certain moment, a trigger signal will be generated, and if the normally open micro switch is closed at a certain moment, a trigger signal will be generated. Specifically, in this embodiment, the micro switch may be a normally open micro switch or a normally closed micro switch.

In this embodiment, the flow regulating valve 10 further includes a switch 800 . The switch 800 is disposed on the valve seat 200 . The switch 800 is electrically connected with the motor 510 .

In this embodiment, the valve stem 300 has a flow closing gear and a preset flow gear after rotating a preset angle. When the valve stem 300 rotates to the preset flow level, the valve stem 300 triggers the switch 800, so that the controller of the household appliance controls the motor 510 to drive the second trigger structure 630 to rotate.

In some embodiments, when the switch 800 is triggered by the valve rod 300 , the controller of the household appliance controls the motor 510 to enter the standby state. At this time, if the controller of the household appliance receives an external instruction (ie, an instruction to start the automatic fire adjustment function) to start the automatic fire adjustment function, the motor 510 in the standby state starts to rotate. Wherein, the control button of the household appliance communicatively connected with the controller can provide external instructions, the remote controller of the household appliance communicatively connected with the controller can also provide external instructions, and the mobile terminal communicatively connected with the controller can also provide external instructions. In this way, it is possible to avoid turning on the automatic fire adjustment function by mistake.

In some embodiments, when the switch 800 is triggered by the valve rod 300 , the controller of the household appliance directly activates the automatic fire adjustment function, and controls the motor 510 to start rotating. In this way, it is very convenient to turn on the automatic fire adjustment function.

In this embodiment, the preset flow gear is the minimum flow gear of the household appliance. Taking a gas stove as an example, after the valve stem 300 rotates 180° counterclockwise from the flow closing position, it can reach the minimum firepower position. In this way, it is very convenient for the user to determine the position of the preset flow gear. In addition, the minimum firepower gear is the starting gear for intelligent adjustment, which can avoid the problem of burning ingredients due to excessive firepower at the starting gear. It can be understood that the preset flow gear can be other flow gears.

In this embodiment, the valve stem 300 also has a third section 330 . The third section 330 is located below the second section 320 . A notch 332 is defined on the third section 330 . During the process of the valve stem 300 rotating from the flow closing position to the preset flow gear, the pressing part 810 of the switch 800 is in contact with the outer wall of the third section 330, and when the valve stem 300 rotates to the preset flow gear, The pressing portion 810 of the switch 800 is located in the notch 332 and is spaced from the inner wall of the notch 332 . It can be understood that, in other embodiments, when the valve stem 300 rotates from the flow closed position to the preset flow position, the contacting portion 810 of the switch 800 is located in the notch 332 and is spaced from the inner wall of the notch 332 , while When the valve stem 300 rotates to a preset flow position, the pressing portion 810 of the switch 800 collides with the outer wall of the third section 330 .

Specifically, in this embodiment, the outer diameter of the third segment 330 is larger than the outer diameter of the second segment 320 . In this way, the valve stem 300 can have better structural strength. More specifically, in this embodiment, the outer diameter of the third segment 330 is substantially the same as the outer diameter of the first segment 310 . It can be understood that, in other embodiments, the outer diameter of the third section 330 may also be equal to the outer diameter of the second section 320 , and in this case, the third section 330 may be regarded as a part of the second section 320 .

The toggle switch 800 is a micro switch. Wherein, the micro switch includes a normally closed micro switch and a normally open micro switch. If the normally closed micro switch is opened at a certain moment, a trigger signal will be generated, and if the normally open micro switch is closed at a certain moment, a trigger signal will be generated. Specifically, in this embodiment, the micro switch may be a normally open micro switch or a normally closed micro switch.

As shown in Fig. 12, the present invention also proposes a control method of a household appliance, the control method of the household appliance includes the following steps:

Step S110, when the second regulating component is in the regulating state, acquire a state signal of the first regulating component detected by the detecting component.

Step S120, when it is determined according to the detected state signal of the first regulating component that the first regulating component enters the regulating state, control the second regulating component to exit the regulating state.

The control method of the above-mentioned household appliances can avoid the conflict between the first regulating component and the second regulating component of the flow regulating valve, thereby ensuring the accuracy of regulation.

In this embodiment, the step of acquiring the status signal of the first adjustment component detected by the detection component includes the following steps:

Step S112, acquiring the first time period of the first trigger and the second trigger of the detection switch, and acquiring the second time period of the second trigger and the third trigger of the detection switch.

The step of determining that the first regulating component enters the regulating state according to the detected state signal of the first regulating component comprises the following steps:

Step S122, comparing the first time period with the second time period.

Step S124, when the first time period is different from the second time period, it is determined that the first regulating component enters the regulating state.

In this embodiment, the control method of the household appliance further includes the following steps:

Step S100, when the household appliance starts to work, control the second regulating component to enter the regulating state, and the second regulating component intelligently regulates the rotation of the valve stem with the target flow rate.

In this embodiment, before the step of controlling the second adjustment component to enter the adjustment state, the following steps are further included:

The control valve stem triggers the start switch.

The valve stem triggers the start switch, so that the controller of the household appliance is energized, so that the motor, the detection switch, etc. are energized (at this time, the motor does not rotate), and the start of the household appliance is completed.

In some embodiments, before the step of controlling the second adjustment component to enter the adjustment state, the following steps are further included:

Step S102, controlling the first adjustment component to enter the adjustment state, and making the valve stem rotate from the closed position to the preset flow position by a preset angle, triggering the switching switch of the flow adjustment valve, so that the second adjustment component enters the preset state. Conditioning state.

Step S104, controlling the second adjustment component to enter the adjustment state from the pre-adjustment state.

In some embodiments, in step S104, the mobile terminal or the remote control controls the second adjustment component to enter the adjustment state from the pre-adjustment state. In some embodiments, in step S104, the second adjustment component is controlled to enter the adjustment state from the pre-adjustment state through the buttons on the control panel of the household appliance.

It can be understood that in other embodiments, the above step S102 and step S104 can be omitted, and at this time, the second adjustment component can be directly controlled to enter the adjustment state through a mobile terminal, a remote control, or a button on a control panel of a household appliance. It can be understood that, in other embodiments, the above step S102 and step S104 can be omitted, and at this time, the second adjustment component can be directly controlled to enter the adjustment state by switching the switch.

In some embodiments, before the step of controlling the second adjustment component to enter the adjustment state, the following steps are further included:

Determine the current flow of the flow regulator valve.

After the step of controlling the second adjustment component to enter the adjustment state, the following steps are further included:

The second adjustment component intelligently adjusts the rotation of the valve stem based on the current flow rate and the target flow rate.

In some embodiments, the user first adjusts the flow through the first adjustment component, but after a period of time, the user needs to adjust the flow through the second adjustment component. At this time, before the step of controlling the second regulating component to enter the regulating state, it is necessary to first determine the current flow rate of the flow regulating valve, and then directly control the second regulating component to enter Adjustment state, after the second adjustment component enters the adjustment state, the second adjustment component intelligently adjusts the rotation of the valve stem with the current flow rate and the target flow rate. In this embodiment, the current flow can be determined according to the first trigger structure and the detection switch.

In this embodiment, after the target flow rate is reached, the second regulating component is controlled to exit regulation.

The present invention also proposes a household appliance, which includes a flow regulating valve 10. The specific structure of the flow regulating valve 10 refers to the above-mentioned embodiments. Since the household appliance adopts all the technical solutions of all the above-mentioned embodiments, it has at least the above-mentioned All the beneficial effects brought by the technical solution of the example are not repeated here.

Household appliances control the flow of gas and liquid through the flow regulating valve 10 . In some embodiments, the household appliance is a gas stove, at this time, the gas flow can be controlled by the above-mentioned flow regulating valve 10 . In some embodiments, the household appliance is a gas water heater. At this time, the gas flow can be controlled by the above-mentioned flow regulating valve 10 . In some embodiments, the household appliance is an electric water heater. At this time, the flow of water can be controlled by the above-mentioned flow regulating valve 10 .

The above descriptions are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformation made by using the description of the present invention and the contents of the accompanying drawings, or direct/indirect Application in other related technical fields is included in the patent protection scope of the present invention.

Claims (13)

1. A flow regulating valve, characterized in that, comprising: a valve body comprising a valve seat and a valve stem mounted on said valve seat and rotatable; and The first adjustment assembly, the second adjustment assembly and the detection assembly arranged on the valve seat, the first adjustment assembly and the second adjustment assembly can drive the valve stem to rotate, and the detection assembly is used for When the second regulating component is in the regulating state, the state of the first regulating component is detected and a control signal for controlling the second regulating component is output. 2. The flow regulating valve according to claim 1, wherein the detection component comprises a detection switch and a first trigger structure and a second trigger structure capable of intermittently triggering the detection switch; When the second adjustment component is in the adjustment state, the first trigger structure and the second trigger structure trigger the detection switch at the same time each time; When the second adjustment component is in the adjustment state, if the first adjustment component enters the adjustment state, there is a situation that the first trigger structure and the second trigger structure alternately trigger the detection switch. 3. The flow regulating valve according to claim 2, characterized in that, both the first trigger structure and the second trigger structure are rotatably arranged on the valve seat; When the second adjustment component is in the adjustment state, the first trigger structure and the second trigger structure rotate synchronously; When the second adjustment assembly is in the adjustment state, if the first adjustment assembly enters the adjustment state, the first trigger structure will rotate relative to the second trigger structure. 4. The flow regulating valve according to claim 3, characterized in that, a plurality of first triggering parts are arranged in the circumferential direction of the first triggering structure, and a plurality of the first triggering parts can intermittently trigger the detection switch; The circumference of the second trigger structure is provided with a plurality of second trigger parts, and the plurality of second trigger parts can trigger the detection switch intermittently; When the second adjusting assembly is in the adjusted state, each of the first triggering parts and one of the second triggering parts are arranged correspondingly in the length direction of the valve stem, and constitute a triggering part, and a plurality of the triggering parts trigger the detection switch intermittently; When the second adjustment component is in the adjustment state, if the first adjustment assembly enters the adjustment state, the first trigger part and the second trigger part alternately trigger the detection switch. 5. The flow regulating valve according to claim 3, wherein when the first regulating assembly is in the regulating state, the first triggering structure rotates, and the second triggering structure does not rotate. 6. The flow regulating valve as claimed in claim 5, characterized in that, the second regulating assembly comprises a motor, a first gear that rotates on the output shaft of the motor and is fixedly connected with the valve stem and capable of a second gear meshing with the first gear; The second trigger structure is fixed on the output shaft, the first trigger structure is fixed on the first gear, and is located between the second trigger structure and the first gear; When the first gear meshes with the second gear, the second trigger structure has a first position and a second position. In the first position, the motor can drive the The first gear is free to rotate, and in the second position, the first adjustment assembly can drive the first gear to rotate freely through the second gear. 7. The flow regulating valve according to claim 6, wherein a first protrusion is provided on a side of the second triggering structure close to the first gear, and a side of the first gear close to the second triggering structure one side is provided with a second protrusion; In the first position, the first protrusion and the second protrusion contact in the circumferential direction of the output shaft, and in the second position, the first protrusion and the second protrusion contact spaced in the circumferential direction of the output shaft. 8. A control method for a household appliance, characterized in that the household appliance comprises a flow regulating valve, and the flow regulating valve comprises a valve body with a valve stem, a first regulating assembly for driving the valve stem to rotate With the second adjustment component and the detection component for detecting the state of the first adjustment component, the control method of the household appliance includes the following steps: When the second adjustment component is in the adjustment state, acquiring the state signal of the first adjustment component detected by the detection component; When it is determined according to the detected state signal of the first regulating component that the first regulating component enters the regulating state, the second regulating component is controlled to exit the regulating state. 9. The control method of a household appliance according to claim 8, wherein the detection component comprises a detection switch, a first trigger structure and a second trigger structure capable of intermittently triggering the detection switch, and in the second When the adjustment component is in the adjustment state, the first trigger structure and the second trigger structure trigger the detection switch at the same time each time, and when the second adjustment component is in the adjustment state, if the first adjustment component enters In the adjustment state, there is a situation where the first trigger structure and the second trigger structure alternately trigger the detection switch; The step of acquiring the state signal of the first regulating component detected by the detecting component includes the following steps: Obtain the first time period of the first trigger and the second trigger of the detection switch, and obtain the second time period of the second trigger and the third trigger of the detection switch; The step of determining that the first regulating component enters the regulating state according to the detected state signal of the first regulating component comprises the following steps: comparing the first time period with the second time period; When the first time period is different from the second time period, it is determined that the first regulation component enters the regulation state. 10. The control method of household appliances as claimed in claim 8, further comprising the steps of: When the household appliance starts to work, the second regulating component is controlled to enter the regulating state, and the second regulating component intelligently regulates the rotation of the valve stem with the target flow. 11. The control method of a household appliance according to claim 10, wherein the flow regulating valve further comprises a switch; Before the step of controlling the second adjustment component to enter the adjustment state, the following steps are also included: controlling the first adjustment component to enter the adjustment state, and making the valve stem rotate from the closed position to the preset flow position by a preset angle, triggering the switching switch of the flow adjustment valve, so that the second adjustment component enters the pre-adjustment state; The second regulating component is controlled to enter the regulating state from the pre-regulating state. 12. The control method of household appliances as claimed in claim 10, characterized in that, Before the step of controlling the second adjustment component to enter the adjustment state, the following steps are also included: Determine the current flow rate of the flow regulating valve; After the step of controlling the second adjustment component to enter the adjustment state, the following steps are further included: The second adjustment component intelligently adjusts the rotation of the valve stem based on the current flow rate and the target flow rate. 13. A household appliance, characterized in that it comprises the flow regulating valve according to any one of claims 1-7 and a controller electrically connecting the detecting component and the second regulating component; When the first adjustment component enters the adjustment state, the detection component outputs a control signal, and the controller controls the second adjustment component to exit the adjustment according to the control signal.

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