CN211611836U

CN211611836U - Novel water purifier

Info

Publication number: CN211611836U
Application number: CN201921930485.9U
Authority: CN
Inventors: 李磊
Original assignee: Shandong Renzihang Environmental Protection Technology Co ltd
Current assignee: Shandong Renzihang Environmental Protection Technology Co ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-10-02
Anticipated expiration: 2029-11-11

Abstract

A novel water purifier comprises a water purifier body with two filter elements, an electromagnetic water valve, a switching power supply, a one-way water valve, a first control circuit and a second control circuit; the switching power supply, the first control circuit and the second control circuit are arranged on the circuit board and are connected with the electromagnetic water valve through leads; the electromagnetic water valve and the one-way water valve are respectively connected with the first filter element and the second filter element, a bypass water pipe is arranged at the lower part of one end of the water outlet pipeline of the second three-way pipe, the third electromagnetic water valve is connected with the bypass water pipe, and a water receiving groove is arranged in the lower side end of the shell of the water purifier body. In this novel application, damage filtration purification waterborne ability variation, the aquatic impurity conductivity that exceeds standard and risees when first single-stage filter core, the second single-stage filter core continues to provide filtration purification back water for the user, and takes place filtration purification performance variation, the aquatic impurity can give the user suggestion respectively the very first time when exceeding standard at two filter cores, and the user just can in time wash and change the filter core that filtration purification performance variation.

Description

Novel water purifier

Technical Field

The utility model relates to a drinking water equipment field, especially a novel water purifier.

Background

The water purifier is also called water purifier and water quality purifier, and is water treatment equipment for deeply filtering and purifying water according to the use requirement of water. Under the action of the filter element in the water purifier, rust, sand, colloid in water can be effectively filtered, and chemical agents such as residual chlorine, odor, abnormal color, pesticide and the like in water can be adsorbed. And can effectively remove impurities such as bacteria, germs, toxins, heavy metals and the like in water. The main structure of the water purifier comprises a filter element, a shell and necessary corollary equipment, wherein the filter element of the water purifier is generally divided into a multi-stage or single-stage filter element, in the application, tap water enters the filter element, and after the filter element filters and purifies water, a user can drink the filtered water by opening a water valve.

When the existing water purifier is used, the filter element is generally required to be cleaned or replaced at certain intervals due to the influence of impurities in water. At present, when the filter element is cleaned or replaced, generally, the water flow rate after the water purifier filters and purifies the water is obviously reduced (for example, impurities in the water accumulate in the filter element every month), a user can clean or replace the water by himself or a professional, and when the water flow rate is not obviously changed, the user can not actively clean the water. In the in-service use, the filter core filters behind the purification performance variation because of various reasons (for example filter core internal damage), and when filtering back discharge not obviously diminishing, the user is because unknown, that is to say and do not know the quality of filtering back water, continues to drink for a long time and does not have effective filtration purification to contain the water of more impurity, can make the water purifier lose the effect of filtration purification water so, also can bring the influence to user's drinking water health simultaneously.

SUMMERY OF THE UTILITY MODEL

In order to overcome the limitation of the existing water purifier due to the structure, when the effect of filtering and purifying water of the water purifier becomes poor, the user cannot give timely prompt, the user continues to drink water which is not effectively filtered and purified and contains more impurities for a long time, so that the water purifier can lose the effect of filtering and purifying water, and simultaneously, the drinking water health of the user can also be influenced, and before the filter element is replaced and cleaned, the user cannot drink the filtered and purified water The novel water purifier that aquatic impurity exceeded standard, can give the user suggestion in the very first time respectively.

The utility model provides a technical scheme that its technical problem adopted is:

a novel water purifier comprises a water purifier body with two filter elements, an electromagnetic water valve, a switching power supply and a one-way water valve, and is characterized by also comprising a first control circuit and a second control circuit; the switching power supply, the first control circuit and the second control circuit are arranged on the circuit board; the water outlet ends of the first electromagnetic water valve and the second electromagnetic water valve are respectively connected with the water inlet ends of the first filter element and the second filter element, the water inlet ends of the first electromagnetic water valve and the second electromagnetic water valve are respectively connected with the two water outlet ends of a three-way pipe, and the water inlet end of the three-way pipe is connected with a tap water pipe; the water inlet ends of the first one-way water valve and the second one-way water valve are respectively connected with the water outlet ends of the first filter element and the second filter element, the water outlet ends of the first one-way water valve and the second one-way water valve are respectively connected with the two water inlet ends of the second three-way pipe, and the water outlet end of the second three-way pipe is connected with a water outlet pipeline; a bypass water pipe is arranged at the lower part of one end of the water outlet pipeline, the water inlet end of the third electromagnetic water valve is connected with the water outlet end of the bypass water pipe, a water receiving tank is arranged in the lower side end of the shell of the water purifier body, and the water outlet end of the third electromagnetic water valve is positioned at the upper part of the water receiving tank; the lower end of the water outlet pipeline is provided with a water valve, the lower part of one side of the shell of the water purifier body is provided with an opening, and the front end of the water receiving tank is positioned in the opening; the power output ends of the first control circuit and the second control circuit are connected with the power input ends of the first electromagnetic water valve and the third electromagnetic water valve through leads respectively, the control power output end of the first control circuit and the control power input end of the second control circuit are connected with each other through leads, and the power output end of the second control circuit and the power input end of the second electromagnetic water valve are connected with each other through leads.

Furthermore, the inner valve core of the first electromagnetic water valve is of a normally open structure, and the inner valve cores of the second electromagnetic water valve and the third electromagnetic water valve are of a normally closed structure.

Further, the switch power supply is a switch power supply module for converting alternating current to direct current of the brand bright weft.

Furthermore, the one-way water valve is a straight-through type check water valve.

Furthermore, the first control circuit comprises an adjustable resistor, a resistor, an electrolytic capacitor, an NPN triode, a PNP triode, a relay, a light emitting diode and two metal rods, wherein the two metal rods are connected through circuit board wiring and a lead, two openings are respectively formed in one side of the water outlet pipe of the two filter elements, each metal rod is installed with a cylindrical ceramic pipe with external threads at the outer side end when being manufactured, and the two metal rods are respectively installed in the two openings at the side end of the water outlet pipe of the first filter element; one end of a first metal rod is connected with one end of an adjustable resistor, the other end of the adjustable resistor is connected with a base electrode of a first NPN triode, a collector electrode of the first NPN triode is connected with a base electrode of a PNP triode, the collector electrode of the PNP triode is connected with an anode power input end of a first relay, a normally open contact end of the first relay is connected with one end of a third resistor, an anode power input end of a second relay, a control power input end and one end of a first resistor, the other end of the third resistor is connected with an anode of a light emitting diode, the other end of the first resistor is connected with one end of a second resistor and an anode of an electrolytic capacitor, the other end of the second resistor is connected with a base electrode of the second NPN triode, a collector electrode of the second NPN triode is connected with a cathode power input end of the second relay, an emitting electrode of the first NPN triode, a cathode power input, The cathode of the light-emitting diode is connected, and one end of the second metal rod is connected with the emitting electrode of the PNP triode and the input end of the control power supply of the first relay.

Furthermore, the second control circuit comprises an adjustable resistor, a resistor, an NPN triode, a PNP triode, a relay, a light emitting diode and two metal rods, wherein the two metal rods are connected through circuit board wiring and a wire; one end of the first metal rod is connected with one end of the adjustable resistor, the other end of the adjustable resistor is connected with the base electrode of the NPN triode, the collector electrode of the NPN triode is connected with the base electrode of the PNP triode, the collector electrode of the PNP triode is connected with the positive power input end of the relay, the normally open contact end of the first relay is connected with one end of the resistor, the other end of the resistor is connected with the positive electrode of the light emitting diode, the emitting electrode of the NPN triode is connected with the negative power input end of the relay and the negative electrode of the light.

The utility model has the advantages that: in the novel practical application, the first single-stage filter element filters and purifies water at ordinary times to provide purified drinking water for a user; when the first single-stage filter element damages the filtering and purifying water, the performance of the filtering and purifying water is poor, the conductivity of impurities in the water exceeds the standard and rises, the first control circuit can control the first electromagnetic water valve to be closed, and the second electromagnetic water valve to be opened, so that tap water can automatically continuously provide the filtered and purified water for a user through the second single-stage filter element, and simultaneously, before the first single-stage filter element and the second single-stage filter element are switched to filter and purify water, the third electromagnetic water valve can be opened to discharge the water which is not effectively filtered and purified and is between the water outlet valve and the water outlet pipeline, so that the user is prevented from drinking the water which is remained in the water outlet pipeline and is. This is novel in the use, take place the filtering purification effect variation when one of them filter core, aquatic impurity is when exceeding standard, another filter core can continue to provide the water after purifying for the user automatically (can temporarily not change and wash first set of filter core in a period), guaranteed to change and wash before first filter core, the user can also normally drink the water after the filtering purification, and take place the filtering purification performance variation at two filter cores, aquatic impurity can give the user suggestion respectively the very first time when exceeding standard, the user just can in time wash and change the filter core that filtering purification performance variation. This is novel can bring the convenience for the user to guaranteed that user's drinking water is healthy, and improved product market competition, based on the aforesaid, this is novel to have good application prospect.

Drawings

The invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a circuit diagram of the present invention.

Detailed Description

As shown in fig. 1, a novel water purifier comprises a water purifier body 3 with two single-

stage filter elements

1 and 2,

electromagnetic water valves

4, 5 and 6, a switching power supply 7 and one-way water valves 8 and 9, wherein the two single-

stage filter elements

1 and 2 are respectively arranged at the upper part in a shell of the water purifier body 3, and the novel water purifier also comprises a first control circuit 10 and a second control circuit 11; the switching power supply 7, the first control circuit 10 and the second control circuit 11 are arranged on a circuit board, and the circuit board is arranged at the upper right part in the shell of the water purifier body 3; the water outlet ends of the first and second

electromagnetic water valves

4 and 5 are respectively connected with the water inlet ends of the first and

second filter elements

1 and 2 through a pipeline and a pipeline joint, the water inlet ends of the first and second

electromagnetic water valves

4 and 5 are respectively connected with the two water outlet ends of a three-way pipe 12 through a pipeline and a pipeline joint, and the water inlet end of the three-way pipe 12 is positioned at the outer side of the left middle part of the rectangular shell of the water purifier body 3 and is connected with a tap water pipe through a pipeline and a pipeline joint (or a hose); the water inlet ends of the first and second one-way water valves 8 and 9 are respectively connected with the water outlet ends of the first and

second filter elements

1 and 2 through pipelines and pipeline joints, the water outlet ends of the first and second one-way water valves 8 and 9 are respectively connected with the two water inlet ends of the second three-way pipe 13 through pipelines and pipeline joints, and the water outlet end of the second three-way pipe 13 is connected with a water outlet pipeline 14 through threads; a bypass water pipe 15, the interior of which is communicated with the inner space of the water outlet pipeline, is welded at the lower part of the left end of the water outlet pipeline 14, the water inlet end of the third electromagnetic water valve 6 is connected with the left water outlet end of the bypass water pipe 15 through a pipeline and a pipeline joint, a rectangular water receiving tank 16 is placed in the left end of the shell of the water purifier body 3, and the water outlet end of the third electromagnetic water valve 6 is positioned at the upper part of the water receiving tank 16; an elbow fitting is installed to outlet conduit 14's lower extreme, a water valve 17 is installed through the pipe joint before the elbow fitting, water valve 17 is located before the casing of water purifier body 3 outside the middle part rear side of lower extreme rectangle recess 31, there is a rectangle opening 32 casing left side lower part at

water purifier body

3, 16 front ends of water receiving tank are located opening 32 (both front ends are in a plane), and have certain gap (1mm) all around with opening 32, the front end welding of water receiving tank has a spherical operation handle 161, do benefit to and pull out water receiving tank 16 from the casing of water purifier body 3. The single-

stage filter elements

1 and 2 of the water purifier body are U409-1000 UF, and are provided with a water inlet end and a water outlet end. The one-way water valves 8 and 9 are straight-through check water valves made of copper material under the brand JYK/Yijia.

As shown in fig. 1 and 2, the first electromagnetic water valve DC1 is a finished electromagnetic water valve product with a working voltage of direct current 12V and a normally open internal valve core, and has a power of 2W, and the second and third electromagnetic water valves DC2 and DC3 are finished electromagnetic water valves with a working voltage of direct current 12V and a normally closed internal valve core, and have a power of 2W. The switch power supply A1 is a switch power supply module finished product of brand Ming latitude, which is used for converting alternating current 220V into direct current 12V and has the power of 200W. The first control circuit comprises an adjustable resistor RP1, resistors R1, R2 and R3, an electrolytic capacitor C1, NPN triodes Q1 and Q5, a PNP triode Q2, a relay J1, a light emitting diode VL1 and two copper rods T1 which are connected through circuit board wiring and conducting wires, two openings with internal threads are respectively arranged on the right sides of the water outlet pipes of the two single-

stage filter elements

1 and 2 at intervals from top to bottom, each copper rod T1 is sintered with a cylindrical ceramic pipe 18 with external threads on the outer side end (the left side end and the right side end of the copper rod T1 are not wrapped by ceramics) when being manufactured, the two copper rods T1 are respectively screwed into the two openings on the right side of the water outlet pipe of the first single-stage filter element 1 through the external threads on the outer side of the ceramic pipe 18, the two copper rods T1 (which are 1cm apart from each other) are respectively arranged in the two openings on the water outlet pipe side end of the first single-stage filter element, the left side and the right side of the two copper rods T1 are respectively positioned in the water outlet pipe and outside the water outlet pipe; one end of a first copper rod T1 is connected with one end of an adjustable resistor RP1, the other end of the adjustable resistor RP1 is connected with the base of a first NPN triode Q1, the collector of the first NPN triode Q1 is connected with the base of a PNP triode Q2, the collector of the PNP triode Q2 is connected with the positive power input end of a first relay J1, the normally open contact end of the first relay J1 is connected with one end of a third resistor R3, the positive power input end of a second relay J2, the control power input end and one end of a first resistor R1, the other end of the third resistor R3 is connected with the positive electrode of an NPN light-emitting diode VL1, the other end of the first resistor R1 is connected with one end of a second resistor R2 and the positive electrode of an electrolytic capacitor C1, the other end of the second resistor R2 is connected with the base of a second triode Q5, the collector of the second NPN triode Q5 is connected with the negative power input end of a second relay J2, and the first emitter of the first triode, An emitting electrode of a second NPN triode Q5, a negative power supply input end of a first relay J1 and a negative electrode of a light emitting diode VL1 are connected, and one end of a second copper rod T1 is connected with an emitting electrode of a PNP triode Q2 and a control power supply input end of a first relay J1. The second control circuit comprises an adjustable resistor RP2, an NPN triode Q3, a PNP triode Q4, a relay J3, a light-emitting diode VL2, a resistor R4 and two copper rods T2, wherein the two copper rods T2 of the second control circuit are connected with the two copper rods T1 of the first control circuit through circuit board wiring and wires, the two copper rods T2 are screwed into two internal threads of the right side of the water outlet pipe of the second single-stage filter element 2 through external threads on the outer side of a ceramic pipe 18 respectively, the two copper rods T2 are installed in two open holes at the side end of the water outlet pipe of the second single-stage filter element 2 respectively, the two copper rods T2 and the water outlet pipe are insulated and are insulated respectively, and the left side and the right side of the two copper rods T2 (spaced by 1cm) are respectively positioned in the water outlet; one end of a first copper rod T2 is connected with one end of an adjustable resistor RP2, the other end of the adjustable resistor RP2 is connected with a base electrode of an NPN triode Q3, a collector electrode of the NPN triode Q3 is connected with a base electrode of a PNP triode Q4, a collector electrode of a PNP triode Q4 is connected with an anode power supply input end of a relay J3, a normally open contact end of the first relay J3 is connected with one end of a resistor R4, a light emitting diode VL2 at the other end of the resistor R4 is connected with an anode of a light emitting diode VL2, an emitting electrode of the NPN triode Q3 is connected with a cathode power supply input end of the relay J3 and a cathode of the light. A power switch SK is connected in series in front of the positive power input end of the switching power supply a1, and the operation button of the power switch SK and the front ends of the two light emitting diodes VL1 and VL2 of the first and second control circuits are respectively positioned outside the three openings at the front upper right end of the shell of the water purifier body 3.

Pins

1 and 2 of a power input end of a switch power supply A1 and two poles of an alternating current 220V power supply are respectively connected through leads,

pins

3 and 4 of a power output end of a switch power supply A1, emitting electrodes of a PNP triode Q2 and an NPN triode Q1 at power input ends of a first control circuit, emitting electrodes of a PNP triode Q4 and an NPN triode Q3 at power input ends of a second control circuit are respectively connected through leads, two power output ends of a first control circuit, a relay J1 normally open contact end, a relay J1 negative power input end, a relay J2 normally closed contact end, a relay J2 negative power input end are respectively connected with two power input ends of a first electromagnetic water valve DC1 and a third electromagnetic water valve DC3 through leads, a control power output end of the first control circuit, a normally open contact of a relay J2, a control power input end of a second control circuit, two power output ends of the relay J3 normally closed contact and a negative power input end of the relay J3 are connected through leads, and a second control circuit The two ends of the power supply input of the electromagnetic water valve DC2 are connected through leads.

As shown in fig. 1 and 2, after the power switch SK is turned on, the 220V ac power enters the two power input terminals of the switching power supply a1, so that the two

power output terminals

3 and 4 of the switching power supply a1 output stable 12V power into the two power input terminals of the first path and the second path of control circuits, and the first path and the second path of control circuits are in a power-on working state. At ordinary times, the electromagnetic water valve DC1 is in a power-off state, the inner valve core is opened, so that external tap water enters the first single-stage filter element 1 through the inner valve core of the electromagnetic water valve DC1, water filtered and purified by the single-stage filter element 1 flows out of the one-way water valve 8 (the one-way water valve 9 prevents the water from flowing reversely into the second single-stage filter element 2), and in practical application, after a user opens the water valve 17, the filtered and purified water can be drunk. When the interior of the first single-stage filter element 1 is not damaged and the filtered and purified water is qualified, impurities in the water flowing out of a water outlet pipe of the first single-stage filter element are low, the conductivity is low, at the moment, a base electrode of an NPN triode Q1 is subjected to voltage reduction and current limitation through two copper rods T1, water and an adjustable resistor RP1, the voltage obtained from a pin 3 of a switching power supply A1 is lower than 0.7V, a collector of the NPN triode Q1 is in a cut-off state and has no output, a PNP triode Q2 is not conducted, a relay J1 cannot be electrified and attracted, and an electromagnetic water valve DC1 is in a power-off state, so that a user can normally drink the. In practical use, when the interior of the first single-stage filter element 1 is damaged and water after filtration and purification is unqualified, impurities in the water flowing out of a water outlet pipe of the first single-stage filter element are high, the conductivity is high, at the moment, a base electrode of an NPN triode Q1 is subjected to voltage reduction and current limitation through two copper rods T1, water and an adjustable resistor RP1, the voltage obtained from a pin 3 of a switching power supply A1 is higher than 0.7V, the NPN triode Q1 is in a conducting state, a collector electrode of the NPN triode Q1 outputs low level to enter a base electrode of a PNP triode Q2, the PNP triode Q2 is conducted, a collector electrode of the PNP triode Q2 outputs high level to enter an anode power supply input end of a relay J1 (a cathode power supply input end of the relay J1; because the control power supply input end of the relay J1 is connected with the 3 feet of the switch power supply A1, the normally open contact end of the relay J1 is connected with the electromagnetic water valve DC1 and the anode of the light-emitting diode VL1 (the electromagnetic water valve DC1 and the cathode of the light-emitting diode VL1 are connected with the 4 feet of the switch power supply A1), one end of the resistor R1 is connected with the anode power supply input end of the relay J2 and the control power supply input end, the electromagnetic water valve DC1 can be used as an electric tool to close the inner valve core thereof (the light-emitting diode VL1 is powered on to emit light to prompt a user that the inside of the first single-stage filter element 1 is damaged and needs to be replaced or cleaned, and the resistor R3 is a light-emitting diode VL1 for reducing the voltage and limiting current), so that tap water does not enter the first single-stage filter element; the 12V power supply charges an electrolytic capacitor C1 through a resistor R1; within 5 seconds of the initial charging, when the electrolytic capacitor C1 is not fully charged, the base voltage of a power supply entering an NPN triode Q5 after voltage reduction and current limitation through resistors R1 and R2 is lower than 0.7V, the NPN triode Q5 is cut off, the collector of the NPN triode Q5 is not output, and the input end of a control power supply of the relay J2 is communicated with a normally closed contact end when the relay J2 is in a power-off state; because the normally closed contact end of the relay J2 is connected with the positive electrode of the electromagnetic water valve DC3 (the negative electrode of the electromagnetic water valve DC3 is connected with the 4 feet of the switching power supply A1), the electromagnetic water valve DC3 can be used as an electric tool to open the inner valve core thereof within 5 seconds, thus, the unqualified water remained in the single-stage filter element 1 after the first single-stage filter element 1 is damaged and the electromagnetic water valve DC1 is closed can flow out into the water receiving tank 16 through the bypass water pipe 15 and the one-way water valve DC3 with the opened valve core, and the problem that the unqualified water remained in the single-stage filter element 1 and the water outlet pipeline thereof is drunk when a user drinks purified water filtered by the subsequent. After the electrolytic capacitor C1 is charged for 5 seconds and fully charged, the base voltage of the power supply entering the NPN triode Q5 is higher than 0.7V after the voltage is reduced and the current is limited by the resistors R1 and R2, the NPN triode Q5 conducts the collector of the NPN triode Q5 to output low level and enters the negative power supply input end of the relay J2 (the positive power supply input end of the relay J2 is communicated with the pin 3 of the switch power supply A1 through the normally open contact end of the relay J1), therefore, the relay J2 is in an electric-on pull-in state, the control power supply input end and the normally closed contact end are open, and the control power supply input end and the normally; because the normally closed contact end of the relay J2 is connected with the positive electrode of the electromagnetic water valve DC3, after 5 seconds, the electromagnetic water valve DC3 loses power and does not work any more, and the inner valve core is closed, so that water cannot flow out of the bypass water pipe 16 when the subsequent second single-stage filter element 2 filters and purifies water; because the control power supply input end of the relay J3 of the second control circuit is connected with the normally open contact end of the relay J2 (the negative power supply input end of the relay J3 is connected with the 4 pins of the switching power supply A1), the control power supply input end of the relay J3 of the second control circuit can be electrified after the internal valve core of the electromagnetic water valve DC3 is closed for 5 seconds.

As shown in fig. 1 and 2, after the relay J3 of the second control circuit controls the power input end to be powered on, because the normally closed contact end and the negative power input end of the relay J3 of the second control circuit are respectively connected with the power input ends of the second electromagnetic water valve DC2, at this moment, the electromagnetic water valve DC2 can be used as an open internal valve core of the electromagnetic water valve DC2, so that external tap water enters the second single-stage filter element 2 through the internal valve core of the electromagnetic water valve DC2, and water filtered and purified by the single-stage filter element 2 flows out from the one-way water valve 9 (the one-way water valve 8 prevents the water from flowing backwards into the first single-stage filter element 1). When the interior of the second single-stage filter element 2 is not damaged and the filtered and purified water is qualified, the water flowing out of the water outlet pipe has low impurities and low conductivity, at the moment, the base electrode of the NPN triode Q3 is subjected to voltage reduction and current limitation through the two copper rods T2, the water and the adjustable resistor RP2, the voltage obtained from the pin 3 of the switching power supply A1 is lower than 0.7V, the NPN triode Q3 is in a cut-off state, the collector electrode of the NPN triode Q3 has no output, the PNP triode Q4 is not conducted, the relay J3 cannot be electrified for attraction, the electromagnetic water valve DC2 is continuously in an electrified state, and a user normally drinks the filtered and purified water of. In practical use, when the interior of the second single-stage filter element 2 is damaged and the filtered and purified water is unqualified, impurities in the water flowing out of a water outlet pipe of the second single-stage filter element are high, the conductivity is high, at the moment, the base electrode of an NPN triode Q3 is subjected to voltage reduction and current limitation through two copper rods T2, water and an adjustable resistor RP2, the voltage obtained from a pin 3 of a switching power supply A1 is higher than 0.7V, the NPN triode Q3 is in a conducting state, the collector electrode of the NPN triode Q3 outputs low level to enter the base electrode of a PNP triode Q4, the PNP triode Q4 is conducted, the collector electrode of the PNP triode Q4 outputs high level to enter the anode power supply input end of a relay J3 (the cathode power supply input end of the relay J3 is connected with a pin 4 of the switching; because the relay J3 controls the power input end to communicate with the 12V power positive pole through the relay J2, J1, the relay J3 normally closed contact end is connected with the electromagnetic water valve DC2 positive pole, so the electromagnetic water valve DC2 will lose electricity and no longer work its internal valve core to close at this moment, has prevented users from drinking the water after not having been effectively filtered and purified; because the anode of the light emitting diode VL2 is connected with the normally open contact end of the relay J3 through the resistor R4 (voltage reduction and current limitation), and the cathode of the light emitting diode VL2 is communicated with the 4 pins of the switching power supply A1, the light emitting diode VL2 can be powered to emit light at the moment, and a user is prompted that the second single-stage filter element 2 is damaged and needs to be replaced or cleaned. Through the above, in the novel practical application, the first single-stage filter element 1 filters and purifies water at ordinary times, so that purified drinking water is provided for a user; when the first single-stage filter element 1 damages the filtering and purifying water, the filtering and purifying water performance is poor, the conductivity of impurities in water exceeds the standard and is increased, the first control circuit can control the first electromagnetic water valve DC1 to be closed and the second electromagnetic water valve DC2 to be opened, so that tap water can automatically continuously provide filtered and purified water for a user through the second single-stage filter element 2, and simultaneously, before the first single-stage filter element and the second single-stage filter element are switched to filter and purify water, the third electromagnetic water valve DC3 can be opened to discharge water which is not effectively filtered and purified and is arranged between the water outlet valve 17 and the water outlet pipeline 14, and the situation that the water which is remained in the water outlet pipeline and is not effectively filtered and purified is drunk by. This is novel in the use, take place the filtering purification effect variation when one of them filter core 1, aquatic impurity exceeds standard, another filter core 2 can continue to provide the water after purifying for the user automatically (can temporarily not change and wash first set of filter core in a period), guaranteed to change and wash before first filter core 1, the user can also normally drink the water after the filtering purification, and take place the filtering purification performance variation at two filter cores, the aquatic impurity can give the user suggestion respectively the very first time when exceeding standard, the user just can in time wash and change the filter core that the filtering purification performance variation. This is novel can bring the convenience for the user to guaranteed that user's drinking water is healthy, and improved product market competition, (second filter core 2 damages the back and in time need change or wash, before second filter core 2 does not damage, does not change first filter core 1 for the user and continues the water and provide the assurance). The novel water dispenser can bring convenience to users, ensures the drinking water health of the users and improves the market competitiveness of products. The novel water receiving tank 16 can be pulled out and poured after being filled with water and then put into the shell.

As shown in fig. 2, during production, a manufacturer needs to determine the resistance values of the adjustable resistors RP1 and RP2, specifically, two one-way water valves 8 and 9 are directly connected to two water outlet pipes at the lower end of a clean water tank, then other qualified water purifiers are placed in the water tank for treatment, and water quality detection equipment detects qualified water, and then part of tap water (the proportion of tap water to qualified water is about 1:1.5, which is equivalent to that the effect of subsequent filter element treatment water is poor, and the treated water is slightly better than the tap water and lower than the water quality of normal filtered water) is added into the water tank; then, the user firstly adjusts the resistance value of the adjustable resistor RP1, and when the light emitting diode VL1 is just adjusted to emit light, the resistance value of the adjustable resistor RP1 is adjusted to be required (about 3.76M); then the user adjusts the resistance value of the adjustable resistor RP2, and when the light emitting diode VL2 is just adjusted to emit light, the resistance value of the adjustable resistor RP2 is adjusted to be required (about 3.76M); finally, the user disconnects the adjustable resistors RP1 and RP2 from the circuit respectively, measures the resistance value by using a resistance meter, the measured resistance value is the resistance values of the adjustable resistors RP1 and RP2 required by production, the subsequent production does not need to be adjusted, the resistors of the adjustable resistors RP1 and RP2 are adjusted in place before direct production, or fixed resistors with the same resistance value are used for replacing the resistors.

As shown in FIG. 2, the resistors RP1, RP2 are sized at 4.7M (adjusted to about 3.76M); the resistances of the resistors R1, R2, R3 and R4 are 1M, 470K, 1.8K and 1.8K respectively; the model of the electrolytic capacitor C1 is 4.7 uF/25V; relays J1, J2, J3 are DC4123 type 12V miniaturised relays; the models of NPN triodes Q1, Q5 and Q3 are 9014, 9013 and 9014 respectively; the model numbers of NPN triodes Q2 and Q4 are 9012; the light emitting diodes VL1, VL2 are red light emitting diodes.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A novel water purifier comprises a water purifier body with two filter elements, an electromagnetic water valve, a switching power supply and a one-way water valve, and is characterized by also comprising a first control circuit and a second control circuit; the switching power supply, the first control circuit and the second control circuit are arranged on the circuit board; the water outlet ends of the first electromagnetic water valve and the second electromagnetic water valve are respectively connected with the water inlet ends of the first filter element and the second filter element, the water inlet ends of the first electromagnetic water valve and the second electromagnetic water valve are respectively connected with the two water outlet ends of a three-way pipe, and the water inlet end of the three-way pipe is connected with a tap water pipe; the water inlet ends of the first one-way water valve and the second one-way water valve are respectively connected with the water outlet ends of the first filter element and the second filter element, the water outlet ends of the first one-way water valve and the second one-way water valve are respectively connected with the two water inlet ends of the second three-way pipe, and the water outlet end of the second three-way pipe is connected with a water outlet pipeline; a bypass water pipe is arranged at the lower part of one end of the water outlet pipeline, the water inlet end of the third electromagnetic water valve is connected with the water outlet end of the bypass water pipe, a water receiving tank is arranged in the lower side end of the shell of the water purifier body, and the water outlet end of the third electromagnetic water valve is positioned at the upper part of the water receiving tank; the lower end of the water outlet pipeline is provided with a water valve, the lower part of one side of the shell of the water purifier body is provided with an opening, and the front end of the water receiving tank is positioned in the opening; the power output ends of the first control circuit and the second control circuit are connected with the power input ends of the first electromagnetic water valve and the third electromagnetic water valve through leads respectively, the control power output end of the first control circuit and the control power input end of the second control circuit are connected with each other through leads, and the power output end of the second control circuit and the power input end of the second electromagnetic water valve are connected with each other through leads.

2. The novel water purifier as claimed in claim 1, wherein the first electromagnetic water valve has a normally open type structure, and the second and third electromagnetic water valves have normally closed type structures.

3. The novel water purifier according to claim 1, wherein the switch power supply is a brand bright weft AC-to-DC switch power supply module.

4. The novel water purifier as claimed in claim 1, wherein the one-way water valve is a straight-through check water valve.

5. The novel water purifier as claimed in claim 1, wherein the first control circuit comprises an adjustable resistor, a resistor, an electrolytic capacitor, an NPN triode, a PNP triode, a relay, a light emitting diode and two metal rods, which are connected with each other through circuit board wiring and a lead, two openings are respectively arranged on one side of the water outlet pipe of the two filter elements, each metal rod is installed with a cylindrical ceramic pipe with external threads on the outer side end when being manufactured, and the two metal rods are respectively installed in the two openings on the side end of the water outlet pipe of the first filter element; one end of a first metal rod is connected with one end of an adjustable resistor, the other end of the adjustable resistor is connected with a base electrode of a first NPN triode, a collector electrode of the first NPN triode is connected with a base electrode of a PNP triode, the collector electrode of the PNP triode is connected with an anode power input end of a first relay, a normally open contact end of the first relay is connected with one end of a third resistor, an anode power input end of a second relay, a control power input end and one end of a first resistor, the other end of the third resistor is connected with an anode of a light emitting diode, the other end of the first resistor is connected with one end of a second resistor and an anode of an electrolytic capacitor, the other end of the second resistor is connected with a base electrode of the second NPN triode, a collector electrode of the second NPN triode is connected with a cathode power input end of the second relay, an emitting electrode of the first NPN triode, a cathode power input, The cathode of the light-emitting diode is connected, and one end of the second metal rod is connected with the emitting electrode of the PNP triode and the input end of the control power supply of the first relay.

6. The novel water purifier as claimed in claim 1, wherein the second control circuit comprises an adjustable resistor, a resistor, an NPN triode, a PNP triode, a relay, a light emitting diode and two metal rods, which are connected with each other through circuit board wiring and a lead, the two metal rods of the second control circuit are consistent with the two metal rods of the first control circuit in structure, and the two metal rods are respectively installed in two openings at the side end of the water outlet pipe of the second filter element; one end of the first metal rod is connected with one end of the adjustable resistor, the other end of the adjustable resistor is connected with the base electrode of the NPN triode, the collector electrode of the NPN triode is connected with the base electrode of the PNP triode, the collector electrode of the PNP triode is connected with the positive power input end of the relay, the normally open contact end of the first relay is connected with one end of the resistor, the other end of the resistor is connected with the positive electrode of the light emitting diode, the emitting electrode of the NPN triode is connected with the negative power input end of the relay and the negative electrode of the light.