CN111121891A - Flow metering device and water purifying dispenser - Google Patents

Abstract

The application provides a flow metering device and clean drink machine, comprising a water pipe, valve body and timing subassembly, the axial both ends of water pipe are equipped with first water inlet and first delivery port respectively, the valve body is installed in the water pipe, the valve body includes that the valve barrel of second water inlet and second delivery port is seted up respectively to both sides, rotate the valve block of locating in the valve barrel and be used for the elastic component of elasticity ejection valve block shutoff second water inlet, the timing subassembly includes the magnetic element who links to each other with the valve block, a controller that is used for responding to magnetic element and converts the magnetic signal into the magnetic inductor of signal of telecommunication and is used for carrying out the timing according to the signal of telecommunication of magnetic inductor conversion to the opening time of valve body, the magnetic inductor sets up on the water pipe, the controller links to. The application provides a flow metering device can carry out the accurate timing to the system water live time of filter core, can carry out accurate measurement effectively to the system water total amount of filter core again, and the user of being convenient for accurately judges the life of clean drink machine filter core, in time renew cartridge.

Description

Flow metering device and water purifying dispenser

Technical Field

The application belongs to the technical field of water purification metering, and more particularly relates to a flow metering device and a water purification dispenser.

Background

With the increasing severity of water pollution, people need to use a water purifier to deeply filter and purify domestic water to remove impurities such as bacteria, germs, toxins, heavy metals and the like in water in order to ensure the safety and health of drinking water. The service life of a filter element of a water purifier is generally linearly related to the water production flow of the filter element: the larger the water flow of the filter element is, the shorter the service life of the filter element is. At present, the flow metering mode of impeller pulse is generally adopted to meter the water production flow of the filter element of the water purifying drinking machine. However, since the filter element of the water purifier is not continuous and uninterrupted, the flow metering mode of the impeller pulse is not only easy to have a large error, but also has a small range, and it is generally difficult to accurately and effectively meter the water flow of the filter element, so that the user cannot accurately judge the service life of the filter element of the water purifier, and is inconvenient for the user to replace the filter element in time. When the service life of the filter element is prolonged and the filter element is used for producing water continuously, the quality of the water discharged by the water purifying dispenser is influenced, and the drinking water health of people is seriously threatened.

Disclosure of Invention

An objective of this application lies in providing a flow metering device to solve the system water flow of the clean drink machine filter core that exists among the correlation technique and be difficult to the accurate measurement effectively, cause the problem that the user can't accurately judge clean drink machine filter core life.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: provided is a flow rate metering device including:

a valve body;

the water pipe is axially provided with a first water inlet and a first water outlet at two ends respectively; and

the timing assembly is used for timing the opening time of the valve body;

the valve body comprises a valve sleeve, a valve plate and an elastic piece, wherein the two sides of the valve sleeve are respectively provided with a second water inlet and a second water outlet; the timing assembly comprises a magnetic element connected with the valve plate, a magnetic inductor used for sensing the magnetic element and converting a magnetic signal into an electric signal, and a controller used for timing the opening time of the valve body according to the electric signal converted by the magnetic inductor, wherein the magnetic inductor is arranged on the water pipe, and the controller is electrically connected with the magnetic inductor.

In one embodiment, the flow metering device further includes a slide rheostat for detecting the swing position information of the valve plate and a detector for detecting voltage signals at two ends of the slide rheostat to obtain the swing angle of the valve plate, and the detector is electrically connected with the slide rheostat and the controller respectively.

In one embodiment, the flow metering device further comprises a tubular connector fixed on the water pipe, the tubular connector is communicated with the water pipe, one end of the valve sleeve is arranged in the tubular connector, and the other end of the valve sleeve extends into the water pipe.

In one embodiment, a positioning groove for positioning the valve sleeve is concavely arranged on the inner wall of the water pipe, and the other end of the valve sleeve is arranged in the positioning groove.

In one embodiment, a mounting seat is sleeved on a port of one end, away from the water pipe, of the tubular joint, and a containing groove for containing the magnetic inductor is formed in the mounting seat.

In one embodiment, a buffer groove for buffering water flow is concavely arranged on one surface of the valve plate close to the second water inlet.

In one embodiment, the valve plate is pivotally mounted in the valve housing.

In one embodiment, the valve plate is provided with a support plate for supporting the magnetic element, the support plate is connected with the valve plate, and the support plate is provided with a placing groove for placing the magnetic element.

In one embodiment, the included angle between the support plate and the valve plate is a right angle or an obtuse angle.

The second objective of the present application is to provide a water purifier to solve the problem that the water flow of the filter element of the water purifier is difficult to be measured accurately and effectively, which results in the user being unable to accurately determine the service life of the filter element of the water purifier.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: a water purifying drinking machine is provided, which comprises the flow metering device.

One or more technical solutions in the embodiments of the present application have at least one of the following technical effects:

the application provides a flow metering device and clean drink machine's beneficial effect lies in: compared with the prior art, the flow metering device and the water purification drinking machine provided by the application automatically open or close the valve body according to the preset flow through the installation in the water pipe, and are provided with the magnetic element on the valve block of the valve body, and the magnetic inductor inducing the magnetic element is arranged on the water pipe, so that when the water flow in the water pipe reaches the preset flow value, the water flow filters the water making work through the filter element. When the valve block swings to open the second water inlet on the valve sleeve, the magnetic inductor senses the magnetic element swinging along with the valve block, the controller accurately times the opening time of the valve body according to information sensed by the magnetic inductor, and therefore water flow passing through the valve body can be accurately calculated, the water making service time of the filter element can be accurately counted, the total water making amount of the filter element can be accurately and effectively measured, a user can accurately judge the service life of the filter element of the water purifying dispenser, and the filter element can be replaced in time.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a flow rate metering device according to an embodiment of the present disclosure;

fig. 2 is an exploded view of a flow metering device according to an embodiment of the present disclosure;

FIG. 3 is an enlarged, fragmentary, schematic view of FIG. 2;

FIG. 4 is an enlarged, fragmentary, schematic view of FIG. 2;

FIG. 5 is a schematic structural diagram of a valve body provided in an embodiment of the present application;

FIG. 6 is a schematic cross-sectional view of a flow metering device provided in an embodiment of the present application;

FIG. 7 is an enlarged, fragmentary, schematic view of FIG. 6;

fig. 8 is an equivalent circuit diagram of a sliding rheostat of a flow metering device according to an embodiment of the present application.

Wherein, in the drawings, the reference numerals are mainly as follows:

1-a water pipe; 11-a first water inlet; 12-a first water outlet; 13-locating slot

2-a valve body; 21-a valve housing; 211-a second water inlet; 212-a second water outlet; 22-a valve plate; 221-a buffer tank; 23-an elastic member; 24-a pivot; 25-a support plate; 26-placing a groove;

3-a timing component; 31-a magnetic element; 32-a magnetic inductor; 33-a controller;

4-a slide rheostat;

5-a detector;

6-tubular joint;

7-mounting seats; 71-a receiving groove; 72-cover.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "connected" or "disposed" to another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1, fig. 2 and fig. 6 together, the flow rate metering device provided by the present application will now be described. The application provides a flow metering device, including water pipe 1, valve body 2 and timing subassembly 3, the axial both ends of water pipe 1 form first water inlet 11 and first delivery port 12 respectively, and valve body 2 sets up in water pipe 1, and valve body 2 can be according to the automatic opening or closing of flow of predetermineeing of rivers in the water pipe 1. Timing component 3 is used for timing the opening time of valve body 2 to accessible timing component 3 can time the single opening time and the accumulative total opening time of valve body 2 respectively, so that realize timing the accumulative system water time of filter core. Specifically, the valve body 2 comprises a valve sleeve 21, a valve plate 22 and an elastic part 23, wherein the two sides of the valve sleeve 21 are respectively provided with a second water inlet 211 and a second water outlet 212, the valve plate 22 is rotatably arranged in the valve sleeve 21, the elastic part is used for elastically pushing the valve plate 22 to block the second water inlet 211, and the valve sleeve 21 is arranged in the water pipe 1; the timing assembly 3 comprises a magnetic element 31 connected with the valve plate 22, a magnetic inductor 32 used for inducing the magnetic element 31 and converting a magnetic signal into an electric signal, and a controller 33 used for timing the opening time of the valve body 2 according to the electric signal converted by the magnetic inductor 32, wherein the magnetic inductor 32 is arranged on the water pipe 1, and the controller 33 is electrically connected with the magnetic inductor 32.

The application provides a basic operating principle of flow metering device: when the water flow in the water pipe 1 reaches the preset flow value, the water flow pressure in the water pipe 1 overcomes the ejection acting force of the elastic piece 23 on the valve plate 22, the valve plate 22 swings by a certain angle and then opens the second water inlet 211 on the valve sleeve 21, the water flow entering the water pipe 1 through the first water inlet 11 can flow to the filter element through the second water inlet 211, the valve sleeve 21, the second water outlet 212 and the first water outlet 12 in sequence, and the water filtering and water making work can be performed through the filter element. When the valve plate 22 swings to open the second water inlet 211 on the valve sleeve 21, the magnetic element 31 changes its position along with the swing of the valve plate 22, and the magnetic sensor 32 can sense the magnetic field of the magnetic element 31. After the magnetic sensor 32 senses the magnetic element 31, the magnetic signal is converted into an electrical signal and transmitted to the controller 33, and the controller 33 starts to time the opening time of the valve body 2 according to the converted electrical signal sensed by the magnetic sensor 32. When the water flow in the water pipe 1 does not reach the preset flow value, the water flow pressure in the water pipe 1 cannot overcome the ejection acting force of the elastic piece 23 on the valve plate 22, the elastic piece 23 elastically ejects the valve plate 22 to block the second water inlet 211, namely, the valve plate 22 resets and closes the second water inlet 211, the valve body 2 blocks the water flow in the water pipe 1 to pass through, and at the moment, the filter element stops filtering water making work. When the valve plate 22 is reset and the second water inlet 211 on the valve sleeve 21 is closed, the magnetic element 31 swings to the initial position along with the valve plate 22, the magnetic sensor 32 cannot sense the magnetic field of the magnetic element 31, and the controller 33 finishes timing the opening time of the valve body 2 according to the information sensed by the magnetic sensor 32. Therefore, the controller 33 precisely counts the opening time of the valve body 2 according to the information sensed by the magnetic sensor 32, and by calculating the product of the opening time of the valve body 2 and the preset flow in the water pipe 1, the water flow passing through the valve body 2 can be accurately calculated, and the opening time of the valve body 2 is also equal to the water making time of the filter element, so that the water making use time of the filter element and the total water making amount of the filter element can be accurately and effectively measured. The flow metering device provided by the application can accurately time the service time of water production of the filter element, can also accurately and effectively meter the total water production amount of the filter element, ensures the accuracy of service life representation of the filter element, is convenient for a user to accurately judge the service life of the filter element of the water purifying dispenser and replace the filter element in time,

the application provides a flow metering device compares with prior art, through set up in water pipe 1 according to the water pipe 1 in the automatic valve body 2 of opening or closing of flow of predetermineeing of rivers to be equipped with magnetic element 31 on valve block 22 of valve body 2, be equipped with the magnetic inductor 32 of response magnetic element 31 on water pipe 1, then only when the rivers flow in water pipe 1 reaches the flow value of predetermineeing, rivers in water pipe 1 pass through the filter core and filter system water work. When the valve plate 22 swings to open the second water inlet 211 on the valve sleeve 21, the magnetic inductor 32 senses the magnetic element 31 swinging along with the valve plate 22, the controller 33 accurately times the opening time of the valve body 2 according to the information sensed by the magnetic inductor 32, and the water flow passing through the valve body 2 can be accurately calculated, so that the water making service time of the filter element can be accurately timed, the total water making amount of the filter element can be accurately and effectively measured, a user can accurately judge the service life of the filter element of the water purifying and drinking machine, and the filter element can be replaced in time.

Specifically, the magnetic element 31 employs a permanent magnet that is field stable and retains a high remanence for a long period of time in an open circuit state, which may be, but is not limited to, an alloy permanent magnetic material. The magnetic element 31 is preferably made of a rare earth permanent magnet material (neodymium iron boron Nd2Fe14B), samarium cobalt (SmCo), AlNiCo (AlNiCo), or a Ferrite permanent magnet material (Ferrite), and the magnetic element 31 may be specifically selected according to the actual application requirement, and is not limited herein. Correspondingly, the magnetic inductor 32 is a magnetic induction sensor capable of inducing a magnetic field of the permanent magnet, the magnetic induction sensor is preferably a reed switch or a hall element (a hall switch or a hall sensor), and the magnetic inductor 32 may be specifically selected according to actual application requirements, and is not limited herein.

In an embodiment, referring to fig. 8, as a specific implementation manner of the flow meter device provided by the present application, the flow meter device further includes a sliding rheostat 4 for detecting the swing position information of the valve plate 22 and a detector 5 for detecting a voltage signal at two ends of the sliding rheostat 4 to obtain the swing angle of the valve plate 22, and the detector 5 is electrically connected to the sliding rheostat 4 and the controller 33, respectively. The detector 5 is implemented by a voltage detection chip or a voltage detection device known to those skilled in the art, which will be described herein for brevity.

In this embodiment, when the water flow in the water pipe 1 reaches the preset flow value, the water flow pressure in the water pipe 1 overcomes the ejection acting force of the elastic element 23 on the valve plate 22, and the valve plate 22 swings by a certain angle and opens the second water inlet 211 on the valve housing 21, the swing position information of the valve plate 22 is detected in real time by setting the slide rheostat 4, the detector 5 detects the voltage signals at the two ends of the slide rheostat in real time and converts the voltage signals into the swing angle of the valve plate 22 (the opening angle of the valve plate 22, that is, the opening degree of the valve body 2), the controller 33 can obtain the real-time flow rate of the water flow in the water pipe 1 according to the opening angle of the valve plate 22, and the average flow rate in unit time is multiplied by the total time of the water flow passing through the valve body 2, so as to calculate the total water production amount of the filter element accurately and effectively, and facilitate, and the filter element is replaced in time.

In the embodiment, the slide rheostat 4 is arranged to detect the swing position information of the valve plate 22 in real time, the detector 5 detects the voltage signals at two ends of the slide rheostat in real time and converts the voltage signals into the swing angle of the valve plate 22, so that the influence of the change of the elastic force of the elastic piece 23 or the water flow acting force in the water pipe 1 on the swing angle of the valve plate 22 in the opening process of the valve plate 22 can be eliminated, the error of nonlinear change of the opening degree of the valve body 2 can be reduced, the error of the swing instability of the valve plate 22 can be eliminated, the accurate detection of the actual opening degree of the valve body 2 is realized, the accuracy of flow measurement cannot be reduced even if the water flow in the water pipe 1 changes, the accuracy and the reliability of flow measurement and flow estimation are ensured, the total water production amount of the filter element can be effectively measured more accurately, and the, and the filter element is replaced in time.

In one embodiment, referring to fig. 8, as an embodiment of the flow meter device provided by the present application, the sliding rheostat 4 is also called a sliding rheostat, which is an ideal three-wire resistance sensor. When the position of the valve plate 22 changes, the slide rheostat 4 can accurately reflect the swing position of the valve plate 22 along with the swing of the valve plate 22, and send out different resistance data, so that the opening angle of the air valve plate 22 (the opening degree of the valve body 2) can be judged. In particular, the slide rheostat 4 is arranged near the valve body 2 and a probe (not shown in the figure) of the slide rheostat 4 is connected with the valve plate 22 of the valve body 2, during the automatic opening or closing of the valve body 2 under the action of the water flow in the water pipe 1, when the swing position of the valve plate 22 changes, the valve plate 22 will drive the probe connected with it to move, so that the resistance value of the slide rheostat 4 changes, when the valve body 2 is opened (the valve plate 22 opens the second water inlet 211), the opening angle of the valve plate 22 is in direct proportion to the resistance value of the slide rheostat 4, when the resistance value of the slide rheostat 4 changes, the voltage is divided by the voltage dividing resistor R2, the voltage signal of the MCU detection port will change accordingly, and the current voltage value of the slide rheostat 4 can be obtained through the dc voltage sampling port of the MCU, the current resistance value of the slide rheostat 4 can be obtained through calculation, so that the current opening angle of the valve plate 22 of the valve body 2 can be known.

Wherein, MCU is the abbreviation of english Microcontroller Unit, and the name is little the control Unit or singlechip wherein. The controller 33 is an MCU integrally disposed on the control board, and has functions of storing data, performing data operation, analyzing, timing, and the like, and the specific structure and function thereof are known to those skilled in the art and will not be described herein.

In one embodiment, as a specific implementation of the flow metering device provided by the present application, the flow metering device further includes a display unit (not shown in the figure) for displaying the flow value passing through the valve body 2 and/or the opening time of the valve body 2, and the display unit is electrically connected to the controller 33.

In this embodiment, through setting up the display element, alright show the flow value of valve body 2 and/or the opening time of valve body 2 on the display element, be convenient for the user learn the accumulative total service life of filter core and the discharge of accumulative total water directly perceivedly to make the user can accurately judge the life of water purifying dispenser filter core, in time change filter core. Specifically, the display unit may be a display or a display screen (such as a liquid crystal display screen) having a display function, and the display unit may be any display device having a display function in the prior art, and a specific structure thereof is a technical means known to those skilled in the art and is not described herein again.

In one embodiment, referring to fig. 1, 2 and 6, as an embodiment of the flow rate metering device provided by the present application, the flow rate metering device further includes a tubular joint 6 fixed on the water pipe 1, the tubular joint 6 is communicated with the water pipe 1, one end of the valve sleeve 21 is disposed in the tubular joint 6, and the other end of the valve sleeve 21 extends into the water pipe 1.

In this embodiment, the valve housing 21 can be conveniently and rapidly inserted into the water pipe 1 through the tubular joint 6 by fixedly arranging the tubular joint 6 on the water pipe 1. In the installation, only need place the one end of valve barrel 21 in tubulose joint 6 to stretch into water pipe 1 with the other end of valve barrel 21, alright swiftly realize the installation of valve body 2, improve the installation effectiveness of valve body 2, and can make things convenient for the later stage maintenance and the change of valve body 2.

In an embodiment, referring to fig. 4 and 7, as an embodiment of the flow rate metering device provided by the present application, a positioning groove 13 for positioning the valve sleeve 21 is concavely formed on an inner wall of the water pipe 1, and the other end of the valve sleeve 21 is disposed in the positioning groove 13.

In this embodiment, through being equipped with constant head tank 13 on the inner wall of water pipe 1 is concave, with the other end holding of valve barrel 21 in constant head tank 13, be convenient for on the one hand valve barrel 21 can install fast accurately in place, on the other hand can be to valve barrel 21 play the positioning action, the steadiness of reinforcing valve barrel 21 installation, be favorable to the reliable and stable nature of valve body 2 work.

In an embodiment, referring to fig. 2, fig. 4 and fig. 6, as an embodiment of the flow meter device provided by the present application, a mounting seat 7 is sleeved on a port of one end of the tubular joint 6 away from the water pipe 1, and a receiving groove 71 for receiving the magnetic sensor 32 is disposed on the mounting seat 7.

In this embodiment, the mounting base 7 is sleeved on the end opening of the tubular joint 6 far from the water pipe 1, and the mounting base 7 is provided with the accommodating groove 71 for accommodating the magnetic inductor 32, so that the magnetic inductor 32 can be conveniently accommodated in the accommodating groove 71 to protect the magnetic inductor 32 and prevent the magnetic inductor 32 from being damaged. Moreover, the magnetic inductor 32 is fixed on the tubular joint 6 through the mounting seat 7, so that the magnetic inductor 32 can be conveniently mounted, the product assembly efficiency is improved, and the magnetic inductor 32 is prevented from shaking during working to influence the flow metering precision.

In an embodiment, please refer to fig. 2 and fig. 6, as a specific implementation manner of the flow rate measuring device provided by the present application, a cover 72 covering the accommodating groove 71 is disposed on the mounting base 7, and the cover 72 is fixedly connected to a position of the mounting base 7 corresponding to the notch of the accommodating groove 71 through a bolt, so as to perform a dust-proof and water-proof function, so as to form a good protection function for the magnetic sensor 32.

In an embodiment, referring to fig. 2, fig. 3 and fig. 5, as an embodiment of the flow metering device provided by the present application, a buffer groove 221 for buffering water flow is concavely disposed on a surface of the valve plate 22 close to the second water inlet 211.

In this embodiment, through the one side that valve block 22 is close to second water inlet 211, that is to say valve block 22's the upstream face goes up the concave dashpot 221 that is equipped with again, when the water current in water pipe 1 overcomes the elasticity ejection effort of elasticity spare and pushes away valve block 22, play certain cushioning effect to water current through dashpot 221, make valve block 22 atress balanced stable, avoid the water current to cause stronger impact to the part of valve block 22, lead to valve block 22 can not stably open second water inlet 211, and influence the accuracy of water flow measurement.

Referring to fig. 2 and 5, in one embodiment, valve plate 22 is pivotally mounted in valve housing 21 via pivot 24 as one embodiment of the flow metering device provided herein.

In this embodiment, the pivot 24 is rotatably installed in the valve housing 21, and the pivot 24 rotatably installs the valve plate 22 in the valve housing 21, so that the valve plate 22 is rotatably installed in the valve housing 21, thereby reducing the loss of water flow pressure, facilitating the valve plate 22 to open the second water inlet 211 under the water flow pushing action, and enhancing the stability and reliability of flow measurement.

In an embodiment, please refer to fig. 2, as a specific implementation manner of the flow rate metering device provided by the present application, the elastic member 23 is a torsion spring, the torsion spring is sleeved on the pivot 24, and the torsion spring elastically pushes the valve plate 22, so as to improve the stability of the valve plate 22 for opening or closing the second water inlet 211, which is beneficial to the accuracy of water flow rate metering. Of course, the elastic element 23 may also be an elastic component such as a spring or a spring plate, which can realize the pushing action on the valve plate 22, and may be specifically selected and arranged according to actual needs, which is not limited herein.

In an embodiment, please refer to fig. 5, as a specific implementation manner of the flow rate measuring device provided by the present application, a supporting plate 25 for supporting a magnetic element 31 is disposed on the valve plate 22, the supporting plate 25 is connected to the valve plate 22, and a placing groove 26 for placing the magnetic element 31 is disposed on the supporting plate 25.

In this embodiment, by providing the support plate 25 on the valve plate 22 and providing the placing groove 26 on the support plate 25 for placing the magnetic element 31, the magnetic element 31 can be quickly mounted only by placing and fixing the magnetic element 31 in the placing groove 26 during use.

In this embodiment, place magnetic element 31 and be fixed in reinforcing magnetic element 31 along with the stability of valve block 22 wobbling in standing groove 26, when magnetic element 31 takes place the position change, be favorable to magnetic inductor 32 can sense magnetic element 31 accurately, improve the accuracy nature of water flow measurement and valve body 2 opening time timing.

In this embodiment, through setting up support magnetic element 31 backup pad 25, increase the distance of magnetic element 31 and valve block 22, the equilibrium when reinforcing valve block 22 swings, when valve block 22 swings, makes magnetic element 31 have great swing amplitude to when magnetic element 31 takes place position change, be favorable to magnetic inductor 32 can sense magnetic element 31 accurately, improve the accuracy nature of water flow measurement and valve body 2 opening time timing.

In one embodiment, please refer to fig. 5, as a specific implementation of the flow metering device provided in the present application, an included angle between the support plate 25 and the valve plate 22 is a right angle or an obtuse angle.

In this embodiment, the contained angle between backup pad 25 and the valve block 22 is right angle or obtuse angle, and when valve block 22 swung, be favorable to magnetic element 31 to produce great range and more stable swing along with backup pad 25, makes magnetic inductor 32 can sense magnetic element 31 accurately, improves the accuracy nature of water flow measurement and valve body 2 opening time timing.

The application also provides a water purifying and drinking machine which comprises the flow metering device.

The application provides a clean drink machine, compare with prior art, be provided with flow metering device, flow metering device is through setting up the valve body 2 that opens or close according to the flow automation of predetermineeing of rivers in the water pipe 1 in water pipe 1, and be equipped with magnetic element 31 on valve block 22 of valve body 2, be equipped with the magnetic inductor 32 of response magnetic element 31 on water pipe 1, then only when the rivers flow in water pipe 1 reaches and predetermines the flow value, rivers in the water pipe 1 pass through the filter core and filter system water work. When the valve plate 22 swings to open the second water inlet 211 on the valve sleeve 21, the magnetic inductor 32 senses the magnetic element 31 swinging along with the valve plate 22, the controller 33 accurately times the opening time of the valve body 2 according to the information sensed by the magnetic inductor 32, and the water flow passing through the valve body 2 can be accurately calculated, so that the water making service time of the filter element can be accurately timed, the total water making amount of the filter element can be accurately and effectively measured, a user can accurately judge the service life of the filter element of the water purifying and drinking machine, and the filter element can be replaced in time.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A flow metering device, comprising:

a valve body;

the water pipe is axially provided with a first water inlet and a first water outlet at two ends respectively; and

the timing assembly is used for timing the opening time of the valve body;

the valve body comprises a valve sleeve, a valve plate and an elastic piece, wherein the two sides of the valve sleeve are respectively provided with a second water inlet and a second water outlet; the timing assembly comprises a magnetic element connected with the valve plate, a magnetic inductor used for sensing the magnetic element and converting a magnetic signal into an electric signal, and a controller used for timing the opening time of the valve body according to the electric signal converted by the magnetic inductor, wherein the magnetic inductor is arranged on the water pipe, and the controller is electrically connected with the magnetic inductor.

2. The flow metering device of claim 1, further comprising a slide rheostat for detecting the swing position information of the valve plate and a detector for detecting a voltage signal at two ends of the slide rheostat to obtain the swing angle of the valve plate, wherein the detector is electrically connected to the slide rheostat and the controller respectively.

3. The flow metering device of claim 1 further comprising a tubular fitting secured to the water line, the tubular fitting communicating with the water line, one end of the valve housing disposed within the tubular fitting, the other end of the valve housing extending into the water line.

4. The flow metering device of claim 3, wherein the inner wall of the water tube is recessed with a positioning groove for positioning the valve housing, and the other end of the valve housing is disposed in the positioning groove.

5. The flow metering device according to claim 3, wherein a mounting seat is sleeved on a port of one end of the tubular joint far away from the water pipe, and a containing groove for containing the magnetic inductor is formed in the mounting seat.

6. A flow metering device according to any one of claims 1 to 5, wherein a buffer groove for buffering water flow is concavely arranged on one surface of the valve plate close to the second water inlet.

7. A flow metering device according to any one of claims 1 to 5, wherein the valve member is pivotally mounted in the valve housing.

8. The flow metering device according to any one of claims 1 to 5, wherein a support plate for supporting the magnetic element is provided on the valve plate, the support plate is connected to the valve plate, and a placement groove for placing the magnetic element is provided on the support plate.

9. The flow metering device of claim 8, wherein the angle between the support plate and the valve plate is a right angle or an obtuse angle.

10. A water purifying dispenser comprising a flow metering device as claimed in any one of claims 1 to 9.

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