CN215161218U

CN215161218U - Water purifier

Info

Publication number: CN215161218U
Application number: CN202120009865.XU
Authority: CN
Inventors: 杨浩; 张辉; 王洪坤; 刘陶; 朱萍萍; 贺素平
Original assignee: Zhejiang Supor Kitchen and Bathroom Electrical Appliance Co Ltd
Current assignee: Zhejiang Supor Kitchen and Bathroom Electrical Appliance Co Ltd
Priority date: 2020-07-03
Filing date: 2021-01-04
Publication date: 2021-12-14
Anticipated expiration: 2031-01-04
Also published as: CN215161219U

Abstract

The utility model provides a water purifier, including the main water pipeline, its water inlet and the intake of intercommunication purifier have set gradually booster pump and reverse osmosis filter core according to the rivers direction on the main water pipeline, still include water storage device, and water storage device includes: the water storage device comprises a power cavity and a water storage cavity, wherein the power cavity and the water storage cavity can change respective volume ratio according to water pressure in the cavities; the water storage cavity is communicated with a pure water port of the reverse osmosis filter element through a water inlet pipeline, the water storage cavity is further communicated with a raw water port of the reverse osmosis filter element through a water outlet pipeline, a first check valve is arranged on the water outlet pipeline, and the communication direction of the first check valve is from the water storage cavity to the raw water port. The purifier that has this structure can reduce the TDS value of first section water to, the device that sets up on the water route is small in quantity, can reduce the risk of leaking.

Description

Water purifier

Technical Field

The utility model relates to a technical field of aqueous cleaning specifically, relates to a purifier.

Background

With the pursuit of the public for quality of life, the water quality is getting more attention. Reverse osmosis water purifiers are becoming more popular because the purified water produced by them is fresher, more sanitary and safer.

The raw water has higher TDS (total dissolved solids) more, and the reverse osmosis filter core can block a large amount of ions in the raw water before the osmotic membrane under the effect of booster pump, and makes the TDS of the water through the osmotic membrane accord with the standard of straight drinking water. However, after the water preparation is finished, a small amount of concentrated water in the reverse osmosis filter element still exists in front of the reverse osmosis membrane. After long-time shutdown, according to the principle that ions are diffused from high-concentration solution to low-concentration solution, the ions in the concentrated water in front of the membrane can be diffused into the directly drinking water purified behind the membrane, so that the purified directly drinking water is polluted. When the water is taken next time, the polluted direct drinking water can be mixed with new direct drinking water to flow out together, so that the TDS of the first section of water taken by the user is higher than the standard value.

In order to solve the problem, the method in the prior art is to arrange a water path between the pure water port of the reverse osmosis filter element and the water inlet of the booster pump, and a plurality of valves are arranged in the water path to control the communication of the water path. After the user stops getting water, the pressure in the booster pump is utilized to extrude the pure water out of the reverse osmosis filter element and return the pure water to the upstream of the booster pump, so that the booster pump and the reverse osmosis filter element are flushed and soaked. Thereby reducing the TDS value of the first section of water taken by the water purifier after long-time standby.

However, the water path structure of the water purifier is complex, a plurality of valves on the water path need to be controlled based on time, and the control logic is correspondingly complex.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that exists among the prior art at least partially, the embodiment of the utility model provides a water purifier, including the main water pipeline, the water inlet and the intake of main water pipeline intercommunication water purifier have set gradually booster pump and reverse osmosis filter core according to the rivers direction on the main water pipeline, and the water purifier still includes water storage device, and water storage device includes: the total volume of the power cavity and the water storage cavity is fixed and can change the volume ratio of the power cavity and the water storage cavity according to the water pressure in the cavities; the water storage cavity is communicated with a pure water port of the reverse osmosis filter element through a water inlet pipeline, the water storage cavity is further communicated with a raw water port of the reverse osmosis filter element through a water outlet pipeline, a first check valve is arranged on the water outlet pipeline, and the communication direction of the first check valve is from the water storage cavity to the raw water port.

In conclusion, the water purifier with the structure can automatically utilize the pure water prepared in the water storage device before the reverse osmosis filter element to flush and soak the reverse osmosis filter element after standby. The influence of diffusion phenomenon after the long-time standby of purifier has been avoided, the TDS value of the pure water side behind the reverse osmosis filter element membrane risees. Thereby reducing the TDS value of the head cup water which is taken by the user next time. Moreover, the number of the devices arranged on the water path is small, and the water leakage risk can be reduced.

Illustratively, the water purifier also comprises a controller, the controller is electrically connected to the booster pump, and the controller is used for controlling the booster pump to stop working according to the electric signal for stopping water taking from the water outlet control device.

The water purifier with the controller can store pure water into the water storage cavity after the water outlet device is closed by a user so as to be used for flushing the reverse osmosis filter element. Reliability and precision of each execution component in the water purifier are improved.

Illustratively, a second check valve and a high-pressure switch are sequentially arranged on the main water pipeline between the pure water port and the water intake according to the water flow direction, the communication direction of the second check valve is from the pure water port to the water intake, and the high-pressure switch is electrically connected to the controller to serve as a water outlet control device.

Therefore, the water purifier with the water purifying device can be communicated with the mechanical faucet, the starting and stopping of the water purifier are controlled by opening and closing the mechanical faucet, the operation is simple and feasible, and the application range of the water purifier can be expanded.

Illustratively, the water outlet control device is an electrically controlled faucet, and the controller is also used for electrically connecting the electrically controlled faucet.

Therefore, the water purifier for the external electric control faucet is simple in water path, clear in control logic and easy to realize.

Illustratively, a flow meter is arranged on the main water pipeline between the booster pump and the reverse osmosis filter element, the water inlet pipeline or the concentrated water pipeline arranged at the concentrated water port of the reverse osmosis filter element, and the flow meter is electrically connected to the controller.

Therefore, the water purifier with the flow meter can calculate the water amount flowing into the water storage cavity, can also have other application functions, and lays a hardware foundation for the expansion of the functions of the water purifier.

Illustratively, a pressure sensor is arranged on the water inlet pipeline or the main water pipeline between the pure water port and the water intake, and the pressure sensor is electrically connected to the controller to be used as a water outlet control device.

Through the water purifier using the pressure sensor, the control logic of the controller is simple, the calculated amount is small, and the performance requirement on the controller is low.

Illustratively, the water storage device is a pressure barrel and the power chamber includes an air bladder.

The power cavity comprises the water storage device of the air bag, the water path connection of the water storage device can be reduced, the power for discharging water in the water storage cavity can be generated through the elasticity of the air bag, the structure is simple, and the connection is more convenient.

Illustratively, the power chamber communicates with a water inlet of the water purifier.

When the water storage device is used, the power cavity is communicated with the water inlet of the water purifier, and the power cavity provides power for discharging water in the water storage cavity by utilizing water pressure generated by water flow from the water inlet of the water purifier. The power provided by the power cavity is relatively stable, so that the water outlet speed of the water storage cavity can be kept constant in the process of discharging the pure water from the water storage cavity. In addition, this setting can also utilize the power chamber to discharge all pure water in the water storage chamber, avoids the pure water to produce in the water storage chamber and remains, has improved the utilization ratio of pure water.

Illustratively, a pressure reducing valve is provided at the water inlet.

Therefore, the pressure reducing valve arranged at the water inlet can stabilize the impact effect of water pressure on the pipeline of the water purifier, reduce the water leakage risk and prolong the service life of the water purifier. The water purifier with the high-voltage switch is provided with the pressure reducing valve at the water inlet, so that the water purifier can smoothly enter a stage of storing water in the water storage cavity. Meanwhile, the risk of cost increase and water leakage caused by the increase of the disconnection pressure value of the high-voltage switch can be avoided.

Illustratively, a water inlet electromagnetic valve is arranged on a main water pipeline between the water inlet and the booster pump.

The water inlet electromagnetic valve can prevent water at the water inlet from flowing through the booster pump after the water purifier enters a standby state, entering the raw water side of the reverse osmosis filter element and flowing out of the concentrated water outlet. Thereby reducing the waste of water resources.

Illustratively, the concentrate port of the reverse osmosis filter element is provided with a concentrate solenoid valve.

When the purifier washed the reverse osmosis filter core, the dense water solenoid valve would switch on, like this, can utilize the rivers of big flux to wash the reverse osmosis filter core, improved the filter effect of reverse osmosis filter core, also prolonged the life of reverse osmosis filter core.

Illustratively, a third check valve is arranged on the water inlet pipeline, and the communication direction of the third check valve is from the pure water port to the water storage cavity.

This setting can wash the in-process at the water storage chamber to the reverse osmosis filter core, prevents that the water in the water storage chamber from entering into the pure water side of reverse osmosis filter core, and the play water of control water storage chamber only flows in the reverse osmosis filter core through outlet pipe way, makes the in-process of washing, and the direction of rivers is more clear and definite and clear.

Illustratively, a preposed filter element is arranged at the water inlet of the main water pipeline.

The front filter element is a first coarse filter device of the water purifier, can remove visible solid impurities in a pipeline, mainly comprises rust, silt, algae, colloid and the like, and plays an active role in protecting a faucet, an inner pipeline of the water purifier and the like.

A series of concepts in a simplified form are introduced in the disclosure, which will be described in further detail in the detailed description section. The summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

The advantages and features of the present invention are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles of the invention. In the drawings, there is shown in the drawings,

fig. 1 is a schematic water path diagram of a water purifier according to a first exemplary embodiment of the present invention;

fig. 2 is a schematic water path diagram of a water purifier according to a second exemplary embodiment of the present invention;

fig. 3 is a schematic water path diagram of a water purifier according to a third exemplary embodiment of the present invention; and

fig. 4 is a schematic water path diagram of a water purifier according to a fourth exemplary embodiment of the present invention.

Wherein the figures include the following reference numerals:

100. a main water line; 101. a water inlet; 102. a water intake; 110. a booster pump; 120. a reverse osmosis filter element; 121. a raw water port; 122. a pure water port; 123. a dense water port; 200. a water storage device; 210. a power cavity; 220. a water storage cavity; 230. a water inlet pipeline; 240. a water outlet pipeline; 250. a first check valve; 310. a second check valve; 320. a high voltage switch; 410. a flow meter; 420. a pressure sensor; 510. a water inlet electromagnetic valve; 520. a concentrated water electromagnetic valve; 530. a third check valve; 600. a front filter element; 700. a pressure reducing valve.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the present invention. One skilled in the art, however, will understand that the following description illustrates only a preferred embodiment of the invention and that the invention may be practiced without one or more of these details. In addition, some technical features that are well known in the art are not described in detail in order to avoid obscuring the present invention.

As shown in fig. 1-2, the present invention provides a water purifier, which comprises a main water pipeline 100, wherein the main water pipeline 100 is connected between a water inlet 101 and a water intake 102 of the water purifier. Generally, the water inlet 101 may be connected to a water source such as a municipal water pipe, and the water intake 102 may be used to be connected to a water outlet device, which may include a mechanical faucet, an electric faucet, a pipeline machine, and the like. The main water line 100 is provided with a booster pump 110 and a reverse osmosis filter 120. The booster pump 110 is used to increase the pressure in the main water line 100 downstream thereof, so that water having a certain pressure passes through the reverse osmosis filter element 120, and is filtered by the reverse osmosis filter element 120 to generate drinkable direct drinking water. The reverse osmosis filter element 120 is a prior art, and the filtering process of the reverse osmosis filter element 120 is a technical means well known to those skilled in the art, and the specific principle will not be described in detail.

The water purifier further comprises a water storage device 200. The water storage device 200 includes a power chamber 210 and a water storage chamber 220. The power chamber 210 and the water storage chamber 220 are not communicated with each other, and the volume thereof can be changed according to the water pressure in the chambers. Specifically, the total volume of both is fixed. The total volume may be set based on the amount of water required to flush the reverse osmosis cartridge 120. Moreover, the two can change their respective volume ratios according to the water pressure in the chamber. The water storage means 200 may be, for example, a water drive means as in the prior art.

The power chamber 210 serves to provide power for discharging the water stored in the water storage chamber 220. The water stored in the water storage chamber 220 is discharged out of the chamber by the pressing or pushing of the power chamber 210.

The water storage chamber 220 is provided with an inlet pipe 230 and an outlet pipe 240. The water inlet pipe 230 communicates the water storage chamber 220 with the pure water port 122 of the reverse osmosis filter element 120. The water outlet pipeline 240 connects the water storage cavity 220 with the raw water port 121 of the reverse osmosis filter element 120. The water storage chamber 220 is used to store pure water filtered by the reverse osmosis filter element 120 to flush the reverse osmosis filter element 120. The water outlet pipe 240 is provided with a first check valve 250, and the first check valve 250 is communicated from the water storage chamber 220 to the raw water port 121.

The water inlet pipeline 230 and the water outlet pipeline 240 may be two pipelines branched from one water outlet on the water storage cavity 220, or two pipelines respectively communicated with two water outlets on the water storage cavity 220. The two communication modes do not influence the use condition of the device.

The water purifier with the above arrangement can realize that a user can take pure water prepared by the reverse osmosis filter element 120 after opening the water outlet device. After the user closes the water outlet device and stops taking water, the water purifier continues to prepare pure water, storing the pure water into the water storage cavity 220. Then, the raw water side before the membrane of the reverse osmosis filter element 120 is washed with the pure water in the water storage chamber 220, and the raw water before the membrane is replaced with the pure water, thereby functioning as a pure water bubble membrane.

The following will describe the specific working process of the water purifier in detail.

The standby state of the water purifier is a state that water is not produced for a user. Specifically, the standby state of the water purifier starts when the booster pump 110 stops working after the previous water production for the user is finished, and ends when the booster pump 110 starts to produce water for the user next time. In other words, the standby state is a state before the water purifying operation is started each time, and is a state after the water purifying operation is completed each time. After a period of time after the user stops taking water, the water purifier will complete the water purifying operation and enter a standby state until the next water purifying operation is started. When the water purifier is in standby, the water outlet device is closed.

Optionally, the power chamber 210 of the water storage device 200 may have a structure for transmitting power therein, for example, the power chamber 210 may communicate with the water inlet 101 of the water purifier. Alternatively, the power chamber 210 may also have a structure capable of storing energy, such as an air bag or a spring.

In one embodiment, the power chamber 210 communicates with the water inlet 101 of the water purifier, as shown in FIG. 1. The user opens the water outlet device to take water, the booster pump 110 is started, the reverse osmosis filter element 120 filters the water, and the pure water is discharged from the water inlet 102 through the pure water port 122. In a normal case, the water inlet 101 of the water purifier is connected to a water circuit with pressure, such as a municipal water circuit, wherein the water pressure can be maintained between 0.1MPa and 0.6 MPa. At the intake 102 end, since the intake 102 is open to the atmosphere, the pressure at the intake 102 will be less than the pressure at the intake 101. The pure water discharged from the pure water inlet 122 will not flow into the water storage cavity 220 to press the power cavity 210, but will completely flow out from the water outlet device and be received by the user.

When the user closes the water outlet device and stops taking water, the booster pump 110 continues to work. Because the first check valve 250 is disposed on the water outlet pipeline 240, the raw water discharged from the water outlet of the booster pump 110 does not directly enter the water storage chamber 220, but is continuously filtered by the reverse osmosis filter element 120 and discharged from the pure water outlet 122.

The pressure generated by the booster pump 110 during operation is much higher than the pressure of the water inlet 101 of the water purifier. At this time, the pure water prepared by the reverse osmosis filter element 120 is filled into the water storage chamber 220 through the water inlet pipe 230, and the raw water in the power chamber 210 is extruded and discharged. The discharged raw water may flow into the water inlet of the booster pump 110 to be circulated and filtered.

After the water purifier meets the preset conditions, the booster pump 110 stops working. The preset condition is, for example, a time threshold reached since the user stopped taking water. After the booster pump 110 stops operating, the pressure provided by the booster pump 110 to the water storage chamber 220 is also eliminated. Under the influence of the pressure at the water inlet 101 of the water purifier, the raw water enters the power chamber 210 to press the water storage chamber 220, so that the pure water prepared in the water storage chamber 220 flows into the raw water port 121 of the reverse osmosis filter element 120 through the water outlet pipeline 240. The raw water on the raw water side before the reverse osmosis filter element 120 is replaced, and the reverse osmosis membrane is washed and immersed in pure water.

In use, the water storage device 200 of fig. 1 is in communication with the water inlet 101 of the water purifier, and the power chamber 210 provides power for discharging water in the water storage chamber 220 by using water pressure generated by water flow from the water inlet 101 of the water purifier. The power provided by the power cavity 210 is relatively stable, so that the water outlet speed of the water storage cavity 220 can be kept constant in the process of discharging the pure water from the water storage cavity 220. In addition, this setting can also guarantee to discharge all pure water in the water storage chamber 220, avoids the pure water to produce in the water storage chamber 220 and remains, has improved the utilization ratio of pure water.

In another embodiment, as shown in FIG. 2, the water storage device 200 may be a pressure tank, wherein the power chamber 210 includes an air bladder. That is, the power chamber 210 is provided with an air bag filled with gas. When water is stored in the water storage cavity 220, the air bag is squeezed, and the pressure in the air bag is increased. When the water in the water storage cavity 220 needs to be discharged to the external water path, the air bag converts the air pressure in the water storage cavity 220 into power to push the water in the water storage cavity 220 to be discharged. This embodiment differs from the embodiment of FIG. 1 described above in that the power source for the power cavity 210 is different. The rest of the working principle and the action flow of the two are similar, and the foregoing description can be used as a reference for the embodiment and is not described in detail.

The water storage device 200 with the power chamber 210 including the air bag may reduce the water connection of the water storage device 200. Need not to communicate power chamber 210 with the water inlet 101 of purifier, just can produce the power with the water exhaust in the water storage chamber 220, simple structure is convenient for connect more.

In summary, the water purifier with this structure can automatically flush and soak the reverse osmosis filter element 120 with the pure water prepared in the water storage device 200 before the reverse osmosis filter element 120 after a certain period of time after the water purifying operation. The influence of diffusion phenomenon after the long-time standby of purifier has been avoided, the TDS value of the pure water side behind the reverse osmosis filter core 120 membrane risees. Thereby reducing the TDS value of the head cup water which is taken by the user next time.

For convenience, the embodiment of fig. 1, that is, the power chamber 210 of the water storage device 200 is connected to the water inlet 101 of the water purifier, is described below.

Illustratively, a controller (not shown) may be provided in the water purifier, the controller being electrically connected to the booster pump 110, the controller being configured to control the booster pump 110 to stop operating according to the electric signal for stopping taking water.

The stop water getting electrical signal may come from a high voltage switch provided on the main water line 100. In this case, the purifier can external mechanical tap. The high voltage switch is caused to issue the water intake stop signal, for example, by the pressure in the main water line 100. The preset condition for the water purifier to control the booster pump 110 to stop working may be that the controller receives an electric signal for stopping water intake from the high-voltage switch.

Alternatively, the controller may also directly control the booster pump 110 based on an electrical signal from the electrically controlled faucet to stop water intake. In this example, the controller may control the booster pump 110 based on an electrical signal received from an electronic faucet to stop water intake, by timing with time, or by determining the amount of water stored into the water storage chamber 220. In other words, the preset condition for the water purifier to control the booster pump 110 to stop working may be that the controller determines, by a timing operation, that a time threshold has been reached since the electric signal for stopping water intake was received from the electric faucet or that the water storage amount has reached a water amount threshold.

The water purifier with the controller can store pure water into the water storage cavity 220 after the water outlet device is closed by a user so as to be used for flushing the reverse osmosis filter element 120. Reliability and precision of each execution component in the water purifier are improved.

In one embodiment, the water purifier is provided with a second check valve 310 and a high-pressure switch 320 in sequence along the water flow direction on the main water pipeline 100 between the pure water port 122 and the water intake port 102. The second check valve 310 is connected from the purified water inlet 122 to the water intake 102, and the high-pressure switch 320 is electrically connected to the controller to serve as a water outlet control device for sending an electric signal to the controller. The switching-off threshold of the high-pressure switch 320 is greater than the back pressure on the clean water side of the reverse osmosis filter element 120, for example, by 2.5 MPa. The preset value allows the water pressure in the waterway to fluctuate without causing misoperation of the water purifier.

The water purifier with the above arrangement can be communicated with a mechanical faucet at the water intake 102. When the mechanical faucet is turned on to take water, the high-voltage switch 320 is turned on to send an electric signal for starting water taking to the controller, and the controller can control the booster pump 110 to start up to perform the above water making process.

When the user closes the mechanical faucet and stops taking water, the pressure in the waterway in which the high pressure switch 320 is located does not rise immediately. Instead, after the water storage chamber 220 is filled with pure water, the pressure in the main water line 100 is continuously increased from the water pressure at the water inlet 101 of the water purifier to the cut-off threshold value and then is cut off. At this time, the high voltage switch 320 sends an electric signal to the controller to stop water intake. The controller can control the booster pump 110 to stop working immediately according to the received water taking stopping electric signal, and the water purifier enters a standby state. And due to the arrangement of the second check valve 310, after standby, even if the booster pump 110 does not provide pressure to the main water pipeline 100 any more, the pressure between the second check valve 310 where the high-pressure switch 320 is located and the water intake 102 is still maintained, and the error conduction operation of the high-pressure switch 320 is avoided.

Further, the water purifier with the high-pressure switch 320 may further be provided with a pressure reducing valve 700 at the water inlet 101. The water inlet of the pressure reducing valve 700 is communicated with the water inlet 101. Raw water supplied from a municipal water pipe may be introduced into the downstream main water pipe 100 through the pressure reducing valve 700. The pressure reducing valve 700 may be used to stabilize the pressure value at its outlet, and when water above its set pressure value passes through the pressure reducing valve 700, the pressure of the water in the waterway will be reduced to its set pressure value.

There are pressure fluctuations due to the difficulty of setting the pressure in the tap water line at a constant value. If the water pressure in the tap water pipe is higher than the disconnection threshold of the high-voltage switch 320, after the water taking by the user is finished, in the process of storing water in the water storage cavity 220, because the back pressure provided by the power cavity 210 to the water storage cavity 220 is higher than the disconnection threshold of the high-voltage switch 320, the water storage process cannot be carried out, the high-voltage switch 320 is disconnected, and the water purifier directly enters a standby state.

Of course, in order to complete the water storage process, the turn-off threshold of the high-voltage switch 320 may also be increased, but in this way, the pressure inside the whole water purifier during standby is also increased, which increases the risk of water leakage, and in addition, the high-voltage switch 320 needs to be specially customized, which increases the cost.

Therefore, the water purifier with the high-pressure switch 320 can improve the working stability of the water purifier by arranging the pressure reducing valve 700 at the water inlet 101.

It should be understood that although the pressure reducing valve 700 is shown as being provided in the main water line 100, it may be provided in a line in which the water storage device 200 is provided, and the above function may be achieved as long as it is provided in a water line communicating with the power chamber 210.

Further, if the pressure reducing valve 700 is arranged in the water purifier without the high-pressure switch 320, although the standby state of the water purifier is not critical, the pressure reducing valve can also stabilize the water pressure, reduce the impact of water flow on a pipeline of the water purifier, reduce the risk of water leakage, and prolong the service life of the water purifier.

In another embodiment, the water outlet control device is an electrically controlled faucet, and the controller is further used for electrically connecting the electrically controlled faucet. An electrically controlled faucet may be externally connected to the intake 102.

When the user opens the electric control faucet, the electric control faucet sends an electric signal for starting water taking to the controller, and the controller controls the booster pump 110 to start, so as to perform the water making process.

For example, the controller may set a time threshold. When the user closes the electric control faucet, the electric control faucet sends an electric signal for stopping water taking to the controller. The controller starts timing after receiving the electric signal for stopping taking water, and controls the booster pump 110 to stop working after the time threshold value is reached, so that the water purifier enters a standby state. The water storage chamber 220 may be filled after the time threshold is reached. The time threshold can be set according to the total volume of the reverse osmosis filter element 120 and the water outlet speed of the pure water port 122.

For example, a flow meter may be disposed on the main water line 100 between the booster pump 110 and the reverse osmosis filter element 120, the water inlet line 230, or the concentrate line disposed at the concentrate inlet 123 of the reverse osmosis filter element 120. Fig. 3 shows that a flow meter 410 is provided on the water inlet line 230. The flow meter 410 is electrically connected to the controller. Similarly to the above, after the user closes the electric control faucet, the electric control faucet sends an electric signal for stopping water intake to the controller, and pure water is filled into the water storage cavity 220. The flow meter 410 records the flow of water and sends a flow signal to the controller as pure water begins to enter the water storage chamber 220. When the controller determines that the water flow reaches the preset flow threshold value, the booster pump 110 is controlled to stop working, and the water purifier enters a standby state. The water storage chamber 220 may be filled after the flow threshold is reached. The flow threshold may be set based on the total volume of the reverse osmosis cartridge 120. In the above description, the flow meter is provided in the water inlet line 230, and alternatively, the flow meter 410 may be provided in the main water line 100 and the concentrated water line, so that the volume of pure water entering the water storage chamber 220 may be indirectly calculated from the proportional relationship between the raw water, the pure water, and the concentrated water in the reverse osmosis filter element 120.

Therefore, the water purifier with the flow meter 410 can not only calculate the water amount flowing into the water storage cavity 220, but also has other application functions, and makes a hardware basis for the expansion of the functions of the water purifier.

Illustratively, as shown in fig. 4, a pressure sensor 420 is provided on the water inlet line 230 or on the main water line 100 between the pure water port 122 and the water intake port 102, and the pressure sensor 420 is electrically connected to the controller. When the pressure in the pipeline where the pressure sensor 420 is located rises to the set value, an electric signal for stopping water taking is sent to the controller. The working flow is similar to that described above and is not repeated.

By using the water purifier with the pressure sensor 420, the control logic of the controller is simple, the calculation amount is small, and the requirement on the performance of the controller is low.

Illustratively, on the main water line 100 between the water inlet 101 and the booster pump 110, a water inlet solenoid valve 510 is provided. The water inlet solenoid valve 510 may have two states of on and off, and may be linked with the booster pump 110, that is, the booster pump 110 is started, and the water inlet solenoid valve 510 is opened; the booster pump 110 is stopped and the water inlet solenoid valve 510 is closed.

Because the concentrate inlet 123 of the reverse osmosis filter element 120 is provided with a waste water ratio device communicated with the atmosphere. The water on the raw water side of the reverse osmosis cartridge 120 may be discharged through a waste water ratio device. Therefore, the water inlet solenoid valve 510 can prevent the water from the water inlet 101 from flowing through the booster pump 110, entering the raw water side of the reverse osmosis filter element 120, and flowing out from the concentrate water inlet 123 after the water purifier enters the standby state. Thereby reducing the waste of water resources.

Illustratively, a concentrate solenoid valve 520 is provided at the concentrate port 123 of the reverse osmosis cartridge 120. The concentrate solenoid valve 520 has on and off states, and the concentrate solenoid valve 520 is in the off state during standby and water production. When the purifier washed reverse osmosis filter core 120, concentrated water solenoid valve 520 would switch on, like this, can utilize the rivers of big flux to wash reverse osmosis filter core 120, improved reverse osmosis filter core 120's filter effect, also prolonged reverse osmosis filter core 120's life.

Illustratively, a third check valve 530 is disposed on the water inlet pipe 230, and the third check valve 530 is communicated from the pure water port 122 to the water storage cavity 220.

This setting can be in the water storage chamber 220 to the reverse osmosis filter core 120 in-process of washing, and the water that prevents in the water storage chamber 220 enters into the pure water side of reverse osmosis filter core 120, and the play water of control water storage chamber 220 only flows into reverse osmosis filter core 120 through outlet pipe 240, makes the in-process of washing, and the direction of rivers is more clear and definite and clear.

Illustratively, a pre-filter cartridge 600 is provided at the water inlet 101 of the main water line 100. Leading filter core 600 is the first coarse filtration equipment to the purifier, can get rid of visible solid impurity in the pipeline, mainly has rust, silt, alga, colloid etc. to leading and purifier internal pipeline etc. play positive guard action.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front", "rear", "upper", "lower", "left", "right", "horizontal", "vertical", "horizontal" and "top", "bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner" and "outer" refer to the interior and exterior relative to the contours of the components themselves.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe the spatial relationship of one or more components or features shown in the figures to other components or features. It is to be understood that the spatially relative terms are intended to encompass not only the orientation of the component as depicted in the figures, but also different orientations of the component in use or operation. For example, if an element in the drawings is turned over in its entirety, the articles "over" or "on" other elements or features will include the articles "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". Further, these components or features may also be positioned at various other angles (e.g., rotated 90 degrees or other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a water purifier, includes the main water pipeline, the main water pipeline intercommunication the water inlet and the intake of water purifier main water pipeline has set gradually booster pump and reverse osmosis filter core, its characterized in that according to the rivers direction:

the purifier still includes water storage device, water storage device includes: the total volume of the power cavity and the water storage cavity is fixed and can change the volume ratio of the power cavity and the water storage cavity according to the water pressure in the cavities;

the water storage chamber pass through the inlet line with the pure water mouth intercommunication of reverse osmosis filter core, the water storage chamber still pass through outlet pipe way with the former water mouth intercommunication of reverse osmosis filter core, be provided with first check valve on the outlet pipe way, the direction of intercommunication of first check valve be by the water storage chamber extremely former mouth of a river.

2. The water purifier of claim 1, further comprising a controller electrically connected to the booster pump, the controller configured to control the booster pump to stop operating in response to an electrical signal from the outlet control device to stop water intake.

3. The water purifier as claimed in claim 2, wherein a second check valve and a high-pressure switch are sequentially arranged on the main water pipeline between the purified water inlet and the water intake in the water flow direction, the second check valve is communicated from the purified water inlet to the water intake, and the high-pressure switch is electrically connected to the controller to serve as the water outlet control device.

4. The water purifier of claim 2, wherein the water outlet control device is an electrically controlled faucet, and the controller is further configured to electrically connect the electrically controlled faucet.

5. The water purifier as recited in claim 4, wherein a flow meter is disposed on a main water line between said booster pump and said reverse osmosis filter element, said water inlet line or a concentrate line disposed at a concentrate port of said reverse osmosis filter element, said flow meter being electrically connected to said controller.

6. The water purification machine according to claim 2, wherein a pressure sensor is provided on said water inlet line or on said main water line between said pure water port and said water intake port, said pressure sensor being electrically connected to said controller as said water outlet control means.

7. The water purifier of claim 1, wherein the water storage device is a pressure barrel and the power chamber comprises an air bladder.

8. The water purifier of claim 1, wherein the power chamber is in communication with a water inlet of the water purifier.

9. The water purifier as claimed in any one of claims 1 to 8, wherein a pressure reducing valve is provided at said water inlet.

10. The water purifier as claimed in any one of claims 1 to 8, wherein a water inlet solenoid valve is provided on said main water line between said water inlet and said booster pump.

11. The water purifier according to any one of the claims 1 to 8, wherein the concentrate port of the reverse osmosis filter element is provided with a concentrate solenoid valve.

12. The water purifier as claimed in any one of claims 1 to 8, wherein a third check valve is provided on said water inlet line, and said third check valve is communicated from said purified water port to said water storage chamber.

13. The water purifier as claimed in any one of claims 1 to 8, wherein a pre-filter element is provided at said water inlet of said main water line.