CN115435139A

CN115435139A - Flow regulating valve, control method of household appliance and household appliance

Info

Publication number: CN115435139A
Application number: CN202110629273.2A
Authority: CN
Inventors: 王文奇
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2022-12-06

Abstract

The invention discloses a flow regulating valve, a control method of a household appliance and the household appliance, wherein the flow regulating valve comprises a valve body, a first regulating assembly, a second regulating assembly and a detection assembly, and the valve body comprises a valve seat and a valve rod which is arranged on the valve seat and can rotate; the first adjusting component can drive the valve rod to rotate; the second adjusting component can drive the valve rod to rotate; the detection assembly is used for detecting the state of the first adjusting assembly and outputting a control signal for controlling the second adjusting assembly when the second adjusting assembly is in an adjusting state. The flow regulating valve has the characteristics of high flow regulating accuracy while having the first regulating assembly and the second regulating assembly.

Description

Flow regulating valve, control method of household appliance and household appliance

Technical Field

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

Background

The flow of gas and liquid of household appliances such as gas stoves, gas water heaters, electric water heaters and the like is driven by a flow regulating valve. In the related art, the flow regulating valve has a first regulating assembly and a second regulating assembly, and the first regulating assembly and the second regulating assembly can respectively regulate the opening degree of the flow regulating valve, so as to regulate the flow. When the flow regulating valve in the related art is used, the conflict is easily caused due to the fact that the first regulating assembly and the second regulating assembly are simultaneously regulated, and the accuracy of flow regulation is affected.

Disclosure of Invention

The invention mainly aims to provide a flow regulating valve which is provided with a first regulating component and a second regulating component and has high flow regulating accuracy.

In order to achieve the above object, the present invention provides a flow control valve, including:

the valve body comprises a valve seat and a valve rod which is arranged on the valve seat and can rotate; and

locate first adjusting part, second adjusting part and the detection subassembly on the disk seat, first adjusting part with the second adjusting part homoenergetic drives the valve rod is rotatory, the detection subassembly is used for when the second adjusting part is in regulation state, detect first adjusting part's state and output are used for controlling the control signal of second adjusting part.

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

when the second adjusting component is in an adjusting state, the first triggering structure and the second triggering structure trigger the detection switch at the same time each time;

when the second adjusting assembly is in an adjusting state, if the first adjusting assembly enters the adjusting state, the first triggering structure and the second triggering structure alternately trigger the detection switch.

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

when the second adjusting component is in an adjusting state, the first triggering structure and the second triggering structure synchronously rotate;

when the second adjusting component is in the adjusting state, if the first adjusting component enters the adjusting state, the first triggering structure rotates relative to the second triggering structure.

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

a plurality of second trigger parts are arranged on the periphery of the second trigger structure, and can intermittently trigger the detection switch;

when the second adjusting assembly is in an adjusting state, each first triggering part and one second triggering part are correspondingly arranged in the length direction of the valve rod and form triggering parts, and the detecting switches are triggered intermittently by the plurality of triggering parts;

when the second adjusting assembly is in an adjusting state, if the first adjusting assembly enters the adjusting state, the first triggering part and the second triggering part alternately trigger the detection switch.

In one embodiment, when the first adjustment assembly is in the adjustment state, the first trigger structure rotates and the second trigger structure does not rotate.

In one embodiment, the second adjusting assembly comprises a motor, a first gear rotatably arranged on an output shaft of the motor, and a second gear fixedly connected with the valve rod and capable of being meshed with the first gear;

the second triggering structure is fixed on the output shaft, and the first triggering structure is fixed on the first gear and is positioned between the second triggering structure and the first gear;

when the first gear is meshed with the second gear, the second trigger structure is provided with a first position and a second position, in the first position, the motor can drive the first gear to rotate freely through the second trigger structure, and in the second position, the first adjusting component can drive the first gear to rotate freely through the second gear.

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

in the first position, the first projection is in contact with the second projection in the circumferential direction of the output shaft, and in the second position, the first projection is spaced from the second projection in the circumferential direction of the output shaft.

The invention also provides a control method of the household appliance, the household appliance comprises a flow regulating valve, the flow regulating valve comprises a valve body with a valve rod, a first regulating assembly and a second regulating assembly which are used for driving the valve rod to rotate, and a detection assembly which is used for detecting the state of the first regulating assembly, the control method of the household appliance comprises the following steps:

when the second adjusting component is in an adjusting state, acquiring a state signal of the first adjusting component detected by the detecting component;

and controlling the second adjusting component to exit from the adjustment when the first adjusting component is determined to enter the adjustment state according to the detected state signal of the first adjusting component.

In one embodiment, the detection assembly comprises a detection switch, a first trigger structure and a second trigger structure, wherein the first trigger structure and the second trigger structure can intermittently trigger the detection switch, the detection switch is triggered by the first trigger structure and the second trigger structure each time when the second adjustment assembly is in an adjustment state, and when the second adjustment assembly is in the adjustment state, if the first adjustment assembly enters the adjustment state, the detection switch is triggered by the first trigger structure and the second trigger structure alternately;

the step of acquiring the state signal of the first adjusting component detected by the detecting component comprises the following steps:

acquiring first time periods of first triggering and second triggering of the detection switch, and acquiring second time periods of second triggering and third triggering of the detection switch;

the step of determining that the first adjustment assembly enters the adjustment state based on the detected state signal of the first adjustment assembly comprises the steps of:

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 adjustment component enters an adjustment state.

In one embodiment, the method further comprises the following steps:

when the household appliance is started to work, the second adjusting assembly is controlled to enter an adjusting state, and the second adjusting assembly rotates with the target flow intelligent adjusting valve rod.

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

before the step of controlling the second adjusting component to enter the adjusting state, the method further comprises the following steps:

controlling the first adjusting assembly to enter an adjusting state, enabling the valve rod to rotate from a closing gear by a preset angle and then reach a preset flow gear, and triggering a change-over switch of the flow adjusting valve to enable the second adjusting assembly to enter a pre-adjusting state;

and controlling the second regulating assembly to enter a regulating state from the pre-regulating state.

In one embodiment, before the step of controlling the second adjustment assembly to enter the adjustment state, the method further comprises the following steps:

determining the current flow of the flow regulating valve;

after the step of controlling the second adjusting component to enter the adjusting state, the method further comprises the following steps:

the second adjustment assembly intelligently adjusts valve stem rotation at the current flow rate and the target flow rate.

The invention also provides a household appliance, which comprises the flow regulating valve and a controller electrically connected with the detection assembly and the second regulating assembly;

when the first adjusting assembly enters an adjusting state, the detecting assembly outputs a control signal, and the controller controls the second adjusting assembly to exit from adjustment according to the control signal.

The states of the first regulating component of the flow regulating valve comprise a regulating state and a non-regulating state. When the second adjusting assembly is in an adjusting state, if the detecting assembly detects that the first adjusting assembly enters the adjusting state, the first adjusting assembly and the second adjusting assembly simultaneously adjust the valve rod, and the detecting assembly outputs a first control signal; if the detection assembly detects that the first adjusting assembly does not enter the adjusting state, the second adjusting assembly adjusts the valve rod at the moment, the first adjusting assembly does not adjust the valve rod, and the detection assembly outputs a second control signal. The controller is electrically connected with the detection assembly and the second adjusting assembly, can determine the state of the first adjusting assembly according to the first control signal and the second control signal, and controls the second adjusting assembly to continue adjusting when the first adjusting assembly is determined not to enter the adjusting state; when it is determined that the first adjustment assembly enters the adjustment state, the controller may control the second adjustment assembly to exit the adjustment, i.e., the controller may control the second adjustment assembly to stop the adjustment. So, can avoid appearing adjusting the condition emergence that leads to adjusting in disorder because of first adjusting part and second adjusting part adjust the valve rod simultaneously, also can avoid appearing the condition emergence that the regulation of first adjusting part and second adjusting part's regulation conflict mutually to can ensure the accuracy of adjusting.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a flow control valve according to an embodiment of the present invention;

FIG. 2 is a partially exploded view of the flow control valve of FIG. 1 with the mounting cartridge removed;

FIG. 3 is a partially exploded view of the flow control valve shown in FIG. 1;

FIG. 4 is a partially exploded view of the flow control valve shown in FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4;

FIG. 6 is an enlarged view of a portion of FIG. 5;

FIG. 7 is a schematic view of the structure of FIG. 5 from another perspective;

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

fig. 9 is a schematic structural view of the second protrusion in fig. 8 rotated by 270 ° clockwise under the driving of the first protrusion;

FIG. 10 is a schematic perspective view of the valve stem of FIG. 1 with the on switch and the diverter switch;

FIG. 11 is a perspective view of the FIG. 10;

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

The reference numbers indicate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Flow regulating valve	200	Valve seat
300	Valve rod	400	First adjusting component
				500	Second regulating assembly	600	Detection assembly
610	Detection switch	620	First trigger structure
				630	Second trigger structure	622	First trigger part
632	Second trigger part	510	Electric machine
				520	First gear	530	Second gear
512	Output shaft	630a	First bump
				520a	Second projection	514	Noumenon
700	Opening switch	310	First stage
				320	Second section	800	Change-over switch
330	Third stage

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a flow regulating valve.

In an embodiment of the present invention, as shown in fig. 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 sensing assembly 600.

The valve stem 300 is rotatably disposed on the valve seat 200, that is, the valve stem 300 is rotatable with respect to the valve seat 200. The valve stem 300 is rotated relative to the valve seat 200 to adjust the opening degree of the valve element of the flow rate adjustment valve 10, thereby adjusting the flow rate. In this embodiment, the valve body of the flow control valve 10 is a ball valve or a plug valve.

In the present embodiment, the valve stem 300 is rotatable within a first angular range. For household appliances such as a gas stove, a gas water heater, an electric water heater, etc., the difference between the upper limit value and the lower limit value of the first angle range is usually smaller than 360 °, that is, the valve stem 300 of the household appliance such as the gas stove, the gas water heater, the electric water heater, etc. can not rotate 360 ° usually. Specifically, in the present embodiment, the lower limit value of the first angle range is 0 °, and the upper limit value of the first angle range is 270 ° or less. More specifically, in the present embodiment, the upper limit value of the first angle range is not less than 180 °. Therefore, the flow can be adjusted in a large range by household appliances such as a gas stove, a gas water heater, an electric water heater and the like.

The first adjustment assembly 400 is disposed on the valve seat 200 and is capable of rotating the valve stem 300. Specifically, in the present embodiment, the first adjustment assembly 400 is capable of rotating the valve stem 300 through a first range of angles. It is appreciated that in other embodiments, the first adjustment assembly 400 can drive the valve stem 300 to rotate within a second angular range, wherein a lower limit of the second angular range is the same as a lower limit of the first angular range, but an upper limit of the second angular range is different from an upper limit of the first angular range.

The second adjustment assembly 500 is disposed on the valve seat 200 and is capable of driving the valve stem 300 to rotate. Specifically, in the present embodiment, the second adjustment assembly 500 is capable of rotating the valve stem 300 through a first range of angles. It is appreciated that in other embodiments, the second adjustment assembly 500 can drive the valve stem 300 to rotate within a third angular range, wherein a lower value of the third angular range is the same as a lower value of the first angular range, but an upper value of the third angular range is different from an upper value of the first angular range. The upper limit value of the third angle range may be the same as or different from the upper limit value of the second angle range.

The sensing assembly 600 is disposed on the valve seat 200 and is configured to sense a condition of the first adjustment assembly 400 and output a control signal for controlling the second adjustment assembly 500 when the second adjustment assembly 500 is in an adjustment condition.

The states of the first adjustment assembly 400 include an adjusted state and an un-adjusted state. When the second adjusting assembly 500 is in the adjusting state, if the detecting assembly 600 detects that the first adjusting assembly 400 enters the adjusting state, the first adjusting assembly 400 and the second adjusting assembly 500 simultaneously adjust the valve rod 300, and the detecting assembly 600 outputs a first control signal; if the detecting assembly 600 detects that the first adjusting assembly 400 does not enter the adjusting state, the second adjusting assembly 500 adjusts the valve rod 300, the first adjusting assembly 400 does not adjust the valve rod 300, and the detecting assembly 600 outputs the second control signal.

Thereby electrically connecting the sensing assembly 600 and the second adjusting assembly 500, the controller may determine the state of the first adjusting assembly 400 according to the first control signal and the second control signal, and when it is determined that the first adjusting assembly 400 does not enter the adjusting state, the controller controls the second adjusting assembly 500 to continue adjusting; when it is determined that the first adjustment assembly 400 enters the adjustment state, the controller may control the second adjustment assembly 500 to exit the adjustment, i.e., the controller may control the second adjustment assembly 500 to stop the adjustment. Therefore, the situation that the adjustment is disordered due to the fact that the first adjusting assembly 400 and the second adjusting assembly 500 simultaneously adjust the valve rod 300 can be avoided, the situation that the adjustment of the first adjusting assembly 400 conflicts with the adjustment of the second adjusting assembly 500 can be avoided, and the accuracy of the adjustment can be ensured.

In this embodiment, the controller is a controller of a household appliance, and in this case, the flow control valve 10 may not include a controller. It is understood that in other embodiments, the controller may 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 detecting component 600 is used for controlling the second adjusting component 500, that is, the second adjusting component 500 is an intelligent adjusting component (including a motor and other components capable of implementing intelligent control).

In some embodiments, the first adjustment assembly 400 and the second adjustment assembly 500 are both smart adjustment assemblies (including motors and the like that enable smart control). In this manner, it is highly convenient for the detection assembly 600 to detect the state of the first adjustment assembly 400 and output a control signal for controlling the second adjustment assembly 500 when the second adjustment assembly 500 is in the adjustment state. For example, the motor of the first adjustment assembly 400 and the motor of the second adjustment assembly 500 are both electrically connected to the detection assembly 600, and when the second adjustment assembly 500 is in the adjustment state, if the detection assembly 600 detects an operation signal of the motor of the first adjustment assembly 400, it is determined that the first adjustment assembly 400 enters the adjustment state.

When the first adjustment assembly 400 and the second adjustment assembly 500 are both intelligent adjustment assemblies, the first adjustment assembly 400 and the second adjustment assembly 500 may be identical or different. In this embodiment, the first adjusting assembly 400 and the second adjusting assembly 500 are identical, and each of the first adjusting assembly 400 and the second adjusting assembly 500 includes a motor disposed on the valve seat 200, a first gear fixedly disposed on an output shaft of the motor, and a second gear fixedly disposed on the valve rod 300, and the first gear and the second gear can be engaged with each other.

In some embodiments, one of the first adjustment assembly 400 and the second adjustment assembly 500 is a smart adjustment assembly and the other is a manual adjustment assembly. Thus, the flow control valve 10 can realize both manual adjustment and intelligent adjustment. The flow regulating valve 10 with the manual regulating assembly can realize manual regulation, and the manual regulation is not easy to break down, but has the problem of inconvenient use. The flow regulating valve 10 with the intelligent regulating assembly can realize intelligent regulation, is very convenient to use, is easy to have faults (such as motor faults, power supply interruption and the like) and cannot be normally used. The flow regulating valve 10 which can realize both manual regulation and intelligent regulation can solve the problem of convenience in use and the problem of normal use when a fault occurs.

In this embodiment, the first adjustment assembly 400 is a manual adjustment assembly and the second adjustment assembly 500 is a smart adjustment assembly.

In some embodiments, the first adjustment assembly 400 is located in the extension direction of the valve stem 300 and is connected to an end of the valve stem 300. Taking a gas stove as an example, the first adjusting assembly 400 is disposed on a panel of the gas stove in a penetrating manner and connected to an end of the valve rod 300, and at this time, the first adjusting assembly 400 may be a knob of the gas stove. In some embodiments, the first adjustment assembly 400 includes one end of the valve stem 300. Taking a gas stove as an example, the valve rod 300 is inserted into a panel of the gas stove, and at this time, the end of the valve rod 300 may be a knob of the gas stove.

In the present embodiment, as shown in fig. 2-5, the detection assembly 600 includes a detection switch 610, a first trigger structure 620, and a second trigger structure 630. The detection switch 610 is provided on the valve seat 200. The first trigger structure 620 is provided on the valve seat 200 and is capable of intermittently triggering the detection switch 610. The second trigger structure 630 is provided on the valve seat 200 and can intermittently trigger the detection switch 610. When the second adjustment assembly 500 is in the adjustment state (at this time, the first adjustment assembly 400 does not enter the adjustment state), the first trigger structure 620 and the second trigger structure 630 trigger the detection switch 610 simultaneously each time, that is, when the second adjustment assembly 500 is in the adjustment state, the detection switch 610 may be triggered intermittently 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, there is a case where the first trigger structure 620 and the second trigger structure 630 alternately trigger the detection switch 610. In this manner, the state of the first adjustment assembly 400 can be determined based on the time period of two adjacent activations of the detection switch 610 (detailed analysis follows).

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

When the second adjustment assembly 500 is in the adjustment state (at this time, the first adjustment assembly 400 does not enter the adjustment state), the first trigger structure 620 and the second trigger structure 630 rotate synchronously, and during the synchronous rotation of the first trigger structure 620 and the second trigger structure 630, the first trigger structure 620 and the second trigger structure 630 simultaneously trigger the detection switch 610 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 triggering structure 620 rotates relative to the second triggering structure 630, and the first triggering structure 620 and the second triggering structure 630 alternately trigger the detection switch 610.

In this embodiment, the detection switch 610 is a microswitch. Wherein, the micro-gap switch includes normally closed micro-gap switch and normally open micro-gap switch. The normally closed micro switch generates a trigger signal if opened at a certain time, and the normally open micro switch generates a trigger signal if closed at a certain time. Specifically, in the present embodiment, the microswitch is a normally open microswitch.

In the present embodiment, the first triggering structure 620 includes a first triggering portion 622. The number of the first triggering portions 622 is plural, and the plural first triggering portions 622 are arranged at intervals along the circumferential direction of the first triggering structure 620. The plurality of first triggering parts 622 can intermittently trigger the detection switch 610 during the rotation of the first triggering mechanism 620.

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

The first trigger structure 620 rotates synchronously with the second trigger structure 630 when the second adjustment assembly 500 is in the adjustment state (at which time the first adjustment assembly 400 does not enter the adjustment state). In the process of synchronous rotation of the first triggering mechanism 620 and the second triggering mechanism 630, the first triggering portions 622 and the second triggering portions 632 are disposed one-to-one in the length direction (vertical direction) of the valve rod 300, that is, each first triggering portion 622 and each second triggering portion 632 are disposed in the length direction (vertical direction) of the valve rod 300, wherein each first triggering portion 622 and each corresponding second triggering portion 632 form a triggering member. The plurality of trigger members can intermittently trigger the detection switch 610 during the synchronous rotation of the first trigger structure 620 and the second trigger structure 630. That is, while the first triggering portion 622 of the first triggering mechanism 620 triggers the detection switch 610 in the adjustment state of the second adjustment assembly 500, the second triggering portion 632 of the second triggering mechanism 630 also triggers the detection switch 610. As such, the flow rate may also be determined by detecting the switch 610, the first trigger structure 620, and the second trigger structure 630 while the second adjustment assembly 500 is in the adjustment state (at which time the first adjustment assembly 400 is not entering the adjustment state). At this time, the time period of two adjacent activations of the detection switch 610 is T1.

In the adjustment state of the second adjustment assembly 500, if the first adjustment assembly 400 suddenly enters the adjustment state, the first triggering mechanism 620 rotates relative to the second triggering mechanism 630, that is, if the second adjustment assembly 500 is in the adjustment state, if the first adjustment assembly 400 suddenly enters the adjustment state, the first triggering mechanism 620 and the second triggering mechanism 630 rotate asynchronously. At this time, the first triggering portion 622 of the first triggering structure 620 and the second triggering portion 632 of the second triggering structure 630 trigger the detection switch 610 alternately, a time period of 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 flow regulating valve 10, when the second regulating assembly 500 is in the regulating state (at this time, the first regulating assembly 400 does not enter the regulating state), the time period T1 of two adjacent triggers of the detecting switch 610 may be recorded first, and then the time period T2 of two adjacent triggers of the detecting switch 610 may be obtained in real time. If the time period T1 is the same as the time period T2, the first adjusting assembly 400 does not enter the adjusting state; if the time period T1 is different from the time period T2, the first adjusting component 400 enters the adjusting state.

In this embodiment, the first triggering portions 622 and the second triggering portions 632 are arranged at equal intervals, and the interval between two adjacent first triggering portions 622 is the same as the interval between two adjacent second triggering portions 632. In this manner, it may be determined whether the first adjustment assembly 400 enters the adjustment state while the second adjustment assembly 500 is in the adjustment state based on whether the time period T1 is the same as or different from the time period T2.

It is understood that, in other embodiments, the first triggering portions 622 and the second triggering portions 632 may also be arranged at different intervals. At this time, it can be determined whether the first adjusting assembly 400 enters the adjusting state while the second adjusting assembly 500 is in the adjusting state according to the variation rule of the time period T1 and the time period T2.

For example, the plurality of first triggering parts 622 are divided into a plurality of groups, each group includes three first triggering parts 622, and the distance between two adjacent first triggering parts 622 in the group is smaller than the distance between two adjacent groups. While the second adjustment assembly 500 is in the adjustment state (at which time the first adjustment assembly 400 is not brought into the adjustment state), the time period T3 between two adjacent sets is recorded, and the time periods T4 within the sets, T3 and T4, are recorded to be different. 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 periodic variation law may be T3, T4, T3, T4. If the first adjustment assembly 400 suddenly enters the adjustment state while the second adjustment assembly 500 is in the adjustment state, the periodic variation law may be T3, T5, and T6. In this manner, when T3, T3 cannot be obtained continuously, it can be considered that the first regulation assembly 400 suddenly enters the regulation state; when T3, T4 are not continuously obtained, it can also be considered that the first regulation assembly 400 suddenly enters the regulation state.

In the present 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 the first triggering portions 622 is equal to or greater than eight. In this way, the distance between two adjacent first triggering portions 622 can be prevented from being too small or too large, so that the triggering frequency of the detection switch 610 can be moderate, and cannot be too fast or too slow. Specifically, in the present embodiment, the number of the first triggering portions 622 is equal to or greater than ten and equal to or less than twenty.

In this embodiment, the first and

second trigger structures

620, 630 are each partial gears. The reference circle diameter of the partial gear is smaller than that of the first gear 520. In this way, the first trigger structure 620 and the second trigger structure 630 can be made smaller in size on the premise that the trigger detection switch 610 is satisfied, thereby facilitating the obtainment of a smaller-sized flow rate adjustment valve 10.

In the present embodiment, when the first adjustment assembly 400 is in the adjustment state (at this time, the second adjustment assembly 500 does not enter the adjustment state), the first trigger structure 620 rotates, and the second trigger structure 630 does not rotate. That is, in the present embodiment, the first adjustment assembly 400 can drive the first triggering structure 620 to rotate, but cannot drive the second triggering structure 630 to rotate. The second adjustment assembly 500 can rotate the first trigger structure 620 and the second trigger structure 630 synchronously. As such, when the first adjustment assembly 400 is in the adjustment state (at which time the second adjustment assembly 500 does not enter the adjustment state), the flow rate may be sized by the detection switch 610 and the first trigger structure 620.

When the second adjustment assembly 500 is in the adjustment state, the rotation speed of the first trigger structure 620 is controlled to be greater than the rotation speed of the second trigger structure 630, or the rotation speed of the first trigger structure 620 is controlled to be less than the rotation speed of the second trigger structure 630, so that the first trigger structure 620 rotates relative to the second trigger structure 630, that is, the first trigger structure 620 rotates asynchronously with the second trigger structure 630. In practical applications, when the first adjustment assembly 400 is a manual adjustment assembly and the second adjustment assembly 500 is a smart adjustment assembly, when the second adjustment assembly 500 is in an adjustment state, if the first adjustment assembly 400 suddenly enters the adjustment state, the rotation speed of the first triggering mechanism 620 is greater than that of the second triggering mechanism 630.

In the present embodiment, the first adjustment assembly 400 and the second adjustment assembly 500 are each capable of driving the valve stem 300 to rotate within a first angular range without interfering with each other. That is, the first adjustment assembly 400 can drive the valve rod 300 to rotate within the first angle range, the second adjustment assembly 500 can drive the valve rod 300 to rotate within the first angle range, and when the first adjustment assembly 400 drives the valve rod 300 to rotate within the first angle range, the second adjustment assembly 500 does not interfere with the first adjustment assembly 400 to drive the valve rod 300 to rotate within the first angle range, and when the second adjustment assembly 500 drives the valve rod 300 to rotate within the first angle range, the first adjustment assembly 400 does not interfere with the second adjustment assembly 500 to drive the valve rod 300 to rotate within the first angle range. In this way, the adjustment of the first adjustment assembly 400 and the adjustment of the second adjustment assembly 500 can be both made smooth.

In the present embodiment, the second adjustment assembly 500 includes a motor 510, a first gear 520, and a second gear 530. The motor 510 is provided 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 coupled to the valve stem 300 and can be engaged with the first gear 520. The second trigger structure 630 is fixed to the output shaft 512 of the motor 510. The first trigger structure 620 is fixed on the first gear 520 and 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 adjustment 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 adjustment assembly 400 to drive 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 rod 300 to rotate, and then the valve rod 300 is driven to rotate, and thus the intelligent adjustment of the flow is realized. When the flow is manually adjusted, the first adjusting assembly 400 is manually rotated, the valve rod 300 can drive the second gear 530 to rotate, the second gear 530 can drive the first gear 520 to rotate, and in the process that the valve rod 300 moves from the lower limit value of the first angle range to the upper limit value of the first angle range and in the process that the valve rod 300 moves from 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 due to interference of the second triggering structure 630 cannot occur, that is, the second triggering structure 630 cannot interfere with the adjustment of the first adjusting assembly 400. Above-mentioned structure can not only realize intelligent regulation and manual regulation, and when intelligent regulation, can also judge whether start manual regulation moreover, avoids intelligent regulation and manual regulation conflict mutually, and above-mentioned simple structure, reliable in addition easily installs.

In this embodiment, when the first gear 520 is engaged 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 520 to rotate freely through the second trigger structure 630, and in the second position, the first adjustment 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 rod 300 to rotate freely, and further drive the valve rod 300 to rotate, thereby realizing the intelligent adjustment of the flow rate, and the first adjustment assembly (manual adjustment) 400 does not interfere with the adjustment of the second adjustment assembly (intelligent adjustment assembly) 500 in the process that the valve rod 300 moves from the lower limit value of the first angle range to the upper limit value of the first angle range and in the process that the valve rod 300 moves from the upper limit value of the first angle range to the lower limit value of the first angle range.

In the second position, the second trigger structure 630 does not interfere the first adjustment assembly 400 to drive the first gear 520 to rotate through the second gear 530, that is, when the flow rate is manually adjusted, the second gear 530 can be driven to rotate freely by manually rotating the valve rod 300, and the first gear 520 can be driven to rotate freely by the second gear 530, so that the first gear 520 cannot rotate freely due to interference of the second trigger structure 630 does not occur in the process that the valve rod 300 moves from the lower limit value of the first angle range to the upper limit value of the first angle range and in the process that the valve rod 300 moves from the upper limit value of the first angle range to the lower limit value of the first angle range, that is, the second adjustment assembly 500 does not interfere the adjustment of the first adjustment assembly 400.

In addition, the second adjusting assembly (intelligent adjusting assembly) 500 is matched with the first adjusting assembly (manual adjusting assembly) 400, so that a fluid pipeline does not need to be additionally arranged, the difficulty and the air leakage risk of the installation process are reduced, and the original installation process of the household appliance and the installation process of the fluid pipeline are not influenced.

In this embodiment, the first gear 520, the first triggering structure 620 and the second triggering structure 630 are all sleeved on the output shaft 512 of the motor 510, and the first triggering structure 620 and the second triggering structure 630 are both located between the first gear 520 and the body 514 of the motor 510. In this way, the motor 510 drives the first gear 520 to rotate stably through the second trigger structure 630, and the position of the detection switch 610 cooperating with the first trigger structure 620 and the second trigger structure 630 can be prevented from being too high.

In this embodiment, as shown in fig. 6 and 7, the second triggering structure 630 and the first gear 520 are both sleeved on the output shaft 512 of the motor 510. A first protrusion 630a is disposed on a side of the second trigger structure 630 close to the first gear 520. A second protrusion 520a is disposed on a side of the first gear 520 close to the second trigger structure 630. In the first position, the first projection 630a is in contact with the second projection 520a in the circumferential direction of the output shaft 512. In the second position, the first projection 630a is spaced from the second projection 520a in the circumferential direction of the output shaft 512. As such, not only is it convenient to achieve that the first adjustment assembly (manual adjustment assembly) 400 and the second adjustment assembly (smart adjustment assembly) 500 adjust the flow rate, but it is also convenient to achieve 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 disposed on the output shaft 512 of the motor 510 through a center through hole such as a D-hole, a hexagonal hole or a U-hole. The shape of the outer wall of the output shaft 512 is matched with 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. As such, the second trigger structure 630 is conveniently secured to the output shaft 512 of the motor 510 for synchronous rotation with the output shaft 512 of the motor 510. It is understood that in other embodiments, the shape of the outer wall of the output shaft 512 may not be matched with the central through hole, and in this case, the second triggering structure 630 may be fixed on the output shaft 512 of the motor 510 by welding, gluing, or the like.

In this embodiment, the first gear 520 is sleeved on the output shaft 512 of the motor 510 through a circular hole. In this manner, rotation of the first gear 520 relative to the output shaft 512 is facilitated, thereby facilitating rotation of the first gear 520 on the output shaft 512 by the second trigger structure 630. In this embodiment, the first gear 520 is disposed on the output shaft 512 of the motor 510 through the circular hole, and the friction between the first gear 520 and the output shaft 512 of the motor 510 is smaller than the driving force applied to the first gear 520 by the motor 510 through the second triggering structure 630. In this manner, not only the first gear 520 may be provided on the output shaft 512 of the motor 510, but also the first gear 520 may be made rotatable with respect to the output shaft 512 of the motor 510.

In this embodiment, the second gear 530 is provided on the valve stem 300 through an isocentric through-hole of a D-hole, a hexagonal hole, or a U-shaped bushing. 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 manner, the second gear 530 is fixed to the valve stem 300 so as to be rotated in synchronization with the valve stem 300. It will be appreciated that in other embodiments, the outer wall of the valve stem 300 may not be shaped to fit the central through hole, and the second gear 530 may be fixed to the valve stem 300 by welding, gluing, or the like.

In the present embodiment, the rotation direction of the first gear 520 is opposite to the rotation direction of the second gear 530, and the pitch circle diameter of the first gear 520 is substantially the same as the pitch circle diameter of the second gear 530, i.e. the transmission ratio of the first gear 520 to the second gear 530 is substantially 1. Thus, assuming that the first gear 520 rotates clockwise by the first angle, the second gear 530 engaged with the first gear 520 will rotate counterclockwise by the first angle. In this manner, it is more convenient to control the first adjusting assembly 400 and the second adjusting assembly 500 not to interfere with each other. It is understood that in other embodiments, the transmission ratio of the first gear 520 to the second gear 530 may be greater than 1, and may be less than 1.

In the present embodiment, during manual adjustment of the flow rate, when the valve stem 300 is rotated in a first direction (e.g., counterclockwise) and moved from the lower limit position of the first angular range to the upper limit position of the first angular range, the second protrusion 520a can be rotated in a second direction (opposite to the first direction, e.g., clockwise) and moved from the lower limit position of the second angular range to the upper limit position of the second angular range. The upper limit value of the second angle range is the same as (the same magnitude as) the upper limit value of the first angle range.

In the second position, the first protrusion 630a is located within a third angular range having a lower limit value that is the same as an upper limit value of the second angular range, the lower limit value of the second angular range being 0 ° in the second direction, and the upper limit value of the third angular range being 360 ° in the second direction. Specifically, in the present embodiment, the lower limit value of the first angle range is 0 ° in the first direction, the upper limit value of the first angle range is 270 ° in the first direction, and the lower limit value of the third angle range is 270 ° in the second direction, which is the same as the upper limit value of the second angle range.

In the present embodiment, a gas range is taken as an example to specifically describe:

the valve stem 200 can be rotated within the range of 0-270. As shown in fig. 8, in the initial position, the first projection 630a is located between 270 ° and 360 ° and the second projection 520a is located at 0 ° (i.e., 360 °), at which time the first projection 630a is spaced from the second projection 520a 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 with the first protrusion 630a in the circumferential direction of the output shaft 512 to form a gear engaging structure, so that the motor 510 can drive the first gear 520 (the second protrusion 520 a) to rotate clockwise through the second trigger structure 630 (the first protrusion 630 a). As shown in fig. 8 and 9, when the second protrusion 520a is rotated clockwise from the 0 ° position to the 270 ° position, that is, after the first gear 520 is rotated clockwise by 270 °, the second gear 530 and the valve stem 300 are rotated counterclockwise by 270 °, that is, the second gear 530 and the valve stem 300 are rotated counterclockwise from the 0 ° position to the 270 ° position. At this time, if it is necessary to rotate the second gear 530 and the valve stem 300 from the 270 ° position to the 0 ° position, that is, it is necessary to rotate the second gear 530 and the valve stem 300 clockwise by 270 °:

the motor 510 may be reversed to rotate the first protrusion 630a counterclockwise 270 ° + a second angle, and then returned to the initial position (between 270 ° -360 °), and then manually adjusted to rotate the second protrusion 520a counterclockwise 270 °, such that the 270 ° position is rotated to the 0 ° position. Since the first projection 630a has returned to the initial position at this time, the first projection 630a is always spaced from the second projection 520a in the circumferential direction of the output shaft 512 during manual adjustment, and interference does not occur.

Or the motor 510 may be reversely rotated to drive the first protrusion 630a to rotate 360 ° counterclockwise, rotate to the other side of the second protrusion 520a, and contact the side, and then intelligently adjust, the motor 510 drives the second protrusion 520a to rotate 270 ° counterclockwise through the first protrusion 630a, so that the 270 ° position rotates to the 0 ° position. Finally, the motor 510 is rotated reversely to rotate the first protrusion 630a clockwise by 360 ° to a second angle, and then returns to the initial position (between 270 ° and 360 °).

In the present embodiment, as shown in fig. 1-5, the valve seat 200 includes a mounting cartridge 210. The mounting box 210 includes a box body 212 and a box cover 214. The box body 212 is sleeved on the valve rod 300. The second adjustment assembly (intelligent adjustment assembly) 500 and the detection switch 610 are both disposed in the box body 212. The cap 214 is fitted over the stem 300 and closes the open end of the body 212. Wherein the valve stem 300 can be rotated with respect to the mounting box 210. The installation box 210 is provided to protect the second adjustment assembly (intelligent adjustment assembly) 500 and the detection switch 610.

In the present embodiment, as shown in fig. 4, 10 and 11, the flow rate adjustment valve 10 further includes a start switch 700. The start switch 700 is provided on the valve seat 200. The valve stem 300 has a flow closing position. When the valve stem 300 is in the flow off position, no flow may be considered to pass through the flow control valve 10. In the flow off position, the valve stem 300 is movable along its length to have an off position and an on position. Taking a gas stove as an example, the start switch 700 is an ignition switch of the gas stove, the closed position is a fire-off position, and the start position is an ignition position.

In the closed position, the second gear 530 is spaced from the first gear 520 in the length direction of the valve stem 300. In the actuating position, the second gear 530 is engaged with the first gear 510, and the valve stem 300 triggers the actuating switch 700 to energize the controller of the home appliance, thereby energizing the motor 510, the detection switch 610, etc. (at this time, the motor 510 does not rotate). Specifically, pressing the valve stem 300 downward may cause the position of the valve stem 300 to switch from the closed position to the activated position, and when the downward force applied to the valve stem 300 is removed (at this time, the valve stem 300 is still in the flow rate closing position and is not rotated), the position of the valve stem 300 may be switched from the activated position to the closed position.

Specifically, in the present embodiment, the valve stem 300 has a first section 310 and a second section 320. The second section 320 is located below the first section 310, and the outer diameter of the second section 320 is smaller than the outer diameter of the y-th section 310. In the closed position, the pressing part 710 of the start switch 700 is opposite to and spaced from the outer wall of the second section 320; and in the actuating position, the pressing part 710 of the actuating switch 700 is opposite to and abutted against the outer wall of the first section 310. By providing the first section 310 and the second section 320 with different outer diameters, it is very convenient to activate the start switch 700.

It is understood that in other embodiments, the valve stem 300 has a first section 310 and a second section 320. The second section 320 is located below the first section 310, and the outer diameter of the second section 320 is greater than the outer diameter of the first section 310. In the closed position, the pressing portion 710 of the start switch 700 faces and abuts against the outer wall of the second section 320; and in the starting position, the pressing part 710 of the starting switch 700 is opposite to and spaced from the outer wall of the first section 310.

In this embodiment, the start switch 700 is a microswitch. Wherein, the micro-gap switch includes normally closed micro-gap switch and normally open micro-gap switch. The normally closed micro switch generates a trigger signal if opened at a certain time, and the normally open micro switch generates a trigger signal if closed at a certain time. Specifically, in the present embodiment, the micro switch may be a normally open micro switch or a normally closed micro switch.

In this embodiment, the flow control valve 10 further includes a switch 800. The diverter switch 800 is provided on the valve seat 200. The switch 800 is electrically connected to the motor 510.

In the present embodiment, the valve lever 300 has a flow rate off position and a preset flow rate position rotated by a preset angle. When the valve rod 300 rotates to a preset flow gear, the valve rod 300 triggers the switch 800 to control the motor 510 to drive the second trigger structure 630 to rotate through the controller of the household appliance.

In some embodiments, when the switch 800 is triggered by the valve stem 300, the controller of the home appliance controls the motor 510 to enter a standby state. At this time, if the controller of the home appliance receives an external instruction (i.e., an instruction to start the automatic fire-adjusting function), and the automatic fire-adjusting function is started, the motor 510 entering the standby state starts to rotate. The control keys of the household appliance in communication connection with the controller can provide external instructions, the remote controller of the household appliance in communication connection with the controller can also provide the external instructions, and the mobile terminal in communication connection with the controller can also provide the external instructions. Therefore, the automatic fire adjusting function can be prevented from being started by mistake.

In some embodiments, when the switch 800 is triggered by the valve stem 300, the controller of the household appliance directly activates the automatic fire-adjusting function and controls the motor 510 to start rotating. Therefore, the automatic fire adjusting function can be conveniently started.

In this embodiment, the preset flow gear is a minimum flow gear of the household appliance. Taking a gas stove as an example, after the valve rod 300 rotates 180 degrees counterclockwise from the flow closing gear, the minimum fire gear can be reached. Thus, the user can conveniently determine the position of the preset flow gear. In addition, the minimum firepower gear is used as the intelligent adjustment starting gear, so that the problem that the food materials are burnt due to overlarge firepower of the starting gear can be avoided. It is understood that the preset flow gear may 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. The third section 330 is provided with a notch 332. In the process that the valve rod 300 rotates from the flow closing gear to the preset flow gear, the pressing part 810 of the switch 800 abuts against the outer wall of the third section 330, and when the valve rod 300 rotates to the preset flow gear, the pressing part 810 of the switch 800 is located in the notch 332 and is spaced from the inner wall of the notch 332. It is understood that in other embodiments, during the rotation of the valve rod 300 from the flow-off position to the preset flow position, the pressing part 810 of the switch 800 is located in the notch 332 and spaced from the inner wall of the notch 332, and when the valve rod 300 is rotated to the preset flow position, the pressing part 810 of the switch 800 is abutted against the outer wall of the third segment 330.

Specifically, in the present embodiment, the third section 330 has an outer diameter greater than that of the second section 320. In this manner, the valve stem 300 may be made to have a better structural strength. More specifically, in the present embodiment, the outer diameter of the third section 330 is substantially the same as the outer diameter of the first section 310. It is understood that in other embodiments, the outer diameter of the third segment 330 may be equal to the outer diameter of the second segment 320, and the third segment 330 may be considered to be part of the second segment 320.

The switch 800 is a microswitch. Wherein, the micro-gap switch includes normally closed micro-gap switch and normally open micro-gap switch. The normally closed micro switch generates a trigger signal if opened at a certain time, and the normally open micro switch generates a trigger signal if closed at a certain time. Specifically, in the present 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 home appliance, including the steps of:

step S110, when the second adjusting component is in the adjusting state, acquiring a state signal of the first adjusting component detected by the detecting component.

And step S120, controlling the second adjusting component to exit from the adjustment when the first adjusting component is determined to enter the adjustment state according to the detected state signal of the first adjusting component.

According to the control method of the household appliance, the first adjusting component and the second adjusting component of the flow adjusting valve can be prevented from conflicting, and therefore the adjusting accuracy can be guaranteed.

In this embodiment, the step of acquiring the status signal of the first adjusting assembly detected by the detecting assembly includes the following steps:

step S112, a first time period of the first trigger and the second trigger of the detection switch is obtained, and a second time period of the second trigger and the third trigger of the detection switch is obtained.

step S122, compare 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 adjusting component enters the adjusting state.

In this embodiment, the method for controlling a home appliance further includes the steps of:

and S100, when the household appliance is started to work, controlling a second adjusting assembly to enter an adjusting state, wherein the second adjusting assembly rotates with the target flow intelligent adjusting valve rod.

In this embodiment, before the step of controlling the second adjustment assembly to enter the adjustment state, the method further includes the following steps:

the control valve rod triggers the start switch.

The valve rod triggers the starting switch, so that a controller of the household appliance is electrified, the motor, the detection switch and the like are electrified (at the moment, the motor does not rotate), and the household appliance is started.

In some embodiments, before the step of controlling the second adjustment assembly to enter the adjustment state, the method further comprises the steps of:

and S102, controlling the first adjusting assembly to enter an adjusting state, enabling the valve rod to rotate from a closing gear by a preset angle to reach a preset flow gear, and triggering a change-over switch of the flow adjusting valve to enable the second adjusting assembly to enter a pre-adjusting state.

And step S104, controlling the second regulating component to enter a regulating state from the pre-regulating state.

In some embodiments, in step S104, the second conditioning component is controlled by the mobile terminal or the remote controller to enter the conditioning state from the pre-conditioning state. In some embodiments, in step S104, the second conditioning assembly is controlled from the pre-conditioning state to the conditioning state by a key on a control panel of the household appliance.

It is understood that in other embodiments, the steps S102 and S104 may be omitted, and in this case, the second adjustment component may be directly controlled to enter the adjustment state through a mobile terminal, a remote controller, a key on a control panel of the household appliance, or the like. It is understood that in other embodiments, the above steps S102 and S104 may be omitted, and in this case, the second adjusting component may be directly controlled to enter the adjusting state by switching the switch.

and determining the current flow of the flow regulating valve.

In some embodiments, the user first adjusts the flow rate through the first adjustment assembly, but after a period of time, the user needs to adjust the flow rate through the second adjustment assembly. At this time, before the step of controlling the second adjusting assembly to enter the adjusting state, the current flow of the flow adjusting valve needs to be determined, then the second adjusting assembly is directly controlled to enter the adjusting state through a mobile terminal, a remote controller, keys on a control panel of the household appliance and the like, and after the second adjusting assembly enters the adjusting state, the second adjusting assembly intelligently adjusts the valve rod to rotate according to the current flow and the target flow. In this embodiment, the current flow rate may be determined based on the first trigger structure and the detection switch.

In this embodiment, the second adjustment assembly is controlled to exit the adjustment after the target flow rate is reached.

The invention further provides a household appliance, which comprises a flow regulating valve 10, the specific structure of the flow regulating valve 10 refers to the above embodiments, and since the household appliance adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.

The household appliance controls the flow of gas and liquid through the flow regulating valve 10. In some embodiments, the household appliance is a gas range, and in this case, the flow of gas can be controlled by the flow control valve 10. In some embodiments, the household appliance is a gas water heater, and in this case, the flow of gas can be controlled by the flow control valve 10. In some embodiments, the household appliance is an electric water heater, and in this case, the flow rate of water can be controlled by the flow regulating valve 10.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A flow control valve, comprising:

2. The flow control valve of claim 1, wherein the detection assembly includes a detection switch and first and second trigger structures capable of intermittently triggering the detection switch;

when the second adjusting component is in an adjusting state, the first trigger structure and the second trigger structure trigger the detection switch at the same time each time;

3. The flow control valve of claim 2, wherein the first trigger structure and the second trigger structure are both rotatably disposed on the valve seat;

when the second adjusting component is in an adjusting state, the first trigger structure and the second trigger structure rotate synchronously;

when the second adjusting assembly is in an adjusting state, if the first adjusting assembly enters the adjusting state, the first triggering structure rotates relative to the second triggering structure.

4. The flow control valve according to claim 3, wherein a plurality of first trigger parts are arranged in the circumferential direction of the first trigger structure, and the plurality of first trigger parts can intermittently trigger the detection switch;

a plurality of second trigger parts are arranged in the circumferential direction of the second trigger structure and can intermittently trigger the detection switch;

5. The flow control valve of claim 3, wherein the first trigger structure rotates and the second trigger structure does not rotate when the first adjustment assembly is in the adjustment state.

6. The flow control valve of claim 5, wherein the second adjustment assembly includes a motor, a first gear rotatably disposed on an output shaft of the motor, and a second gear fixedly coupled to the valve stem and engageable with the first gear;

7. The flow control valve of claim 6, wherein a first protrusion is disposed on a side of the second trigger structure adjacent to the first gear, and a second protrusion is disposed on a side of the first gear adjacent to the second trigger structure;

8. A control method of a household appliance is characterized in that the household appliance comprises a flow regulating valve, the flow regulating valve comprises a valve body with a valve rod, a first regulating assembly and a second regulating assembly which are used for driving the valve rod to rotate, and a detection assembly which is used for detecting the state of the first regulating assembly, and the control method of the household appliance comprises the following steps:

9. The control method of the household appliance according to claim 8, wherein the detection assembly comprises a detection switch, a first trigger structure and a second trigger structure, wherein the first trigger structure and the second trigger structure can intermittently trigger the detection switch, the detection switch is triggered by the first trigger structure and the second trigger structure at the same time each time when the second adjustment assembly is in the adjustment state, and when the second adjustment assembly is in the adjustment state, if the first adjustment assembly enters the adjustment state, the detection switch is triggered by the first trigger structure and the second trigger structure alternately;

acquiring first time periods of first triggering and second triggering of a detection switch, and acquiring second time periods of second triggering and third triggering of the detection switch;

comparing the first time period with the second time period;

10. The control method of a home appliance according to claim 8, further comprising the steps of:

11. The control method of a home appliance according to claim 10, wherein the flow rate adjustment valve further comprises a switch;

12. The control method of a home appliance according to claim 10,

determining the current flow of the flow regulating valve;

13. An electric household appliance comprising a flow regulating valve according to any one of claims 1 to 7 and a controller electrically connecting the sensing assembly and the second regulating assembly;