CN213387905U

CN213387905U - Water purifier

Info

Publication number: CN213387905U
Application number: CN202021652602.2U
Authority: CN
Inventors: 成吉会; 官阔荣
Original assignee: Zhejiang Supor Kitchen and Bathroom Electrical Appliance Co Ltd
Current assignee: Zhejiang Supor Kitchen and Bathroom Electrical Appliance Co Ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-06-08
Anticipated expiration: 2030-08-10

Abstract

An embodiment of the utility model provides a water purifier. The purifier is including the main water pipeline of intercommunication income water end and end of fetching water, booster pump and reverse osmosis filter core have set gradually along the rivers direction on main water pipeline, the purifier is still including washing the pipeline, it communicates between the water inlet of the pure water mouth of reverse osmosis filter core and booster pump to wash the pipeline, water storage device and washing solenoid valve have set gradually along the direction of the water inlet of pure water mouth to booster pump on washing the pipeline, wherein, be provided with the float that can float along with the water level change in the water storage device, the float has the second work position of closing the first work position of water storage device's water inlet and opening water storage device's water inlet, still be provided with the choked flow piece on water storage device's water inlet department or the washing pipeline between water storage device and the pure water mouth. After the water intaking is finished, the pure water can be stored in the water storage device, and the reverse osmosis filter element is positively washed by the pure water, so that the TDS value of the first section of water is avoided being too high.

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. After the water preparation is finished, a small amount of concentrated water is remained in the reverse osmosis filter element before 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.

To solve this problem, the prior art generally flushes the reverse osmosis filter element periodically with raw water from the water inlet end to ensure that the user can obtain water with a TDS that meets the standards each time he takes water. However, this results in frequent start-up of the water purifier, reduces the service life, and also causes waste of water resources.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that exists among the prior art at least partially, the utility model provides a water purifier, main water pipeline including the income water end of intercommunication water purifier and water intaking end, booster pump and reverse osmosis filter core have set gradually along the rivers direction on main water pipeline, water purifier still includes the flushing line, the flushing line intercommunication is between the pure water mouth of reverse osmosis filter core and the water inlet of booster pump, water storage device and flushing solenoid valve have set gradually in the direction of the water inlet of pure water mouth to booster pump on the flushing line, wherein, be provided with the float in water storage device, the float can float along with the water level change in the water storage device, the float has the first work position of closing water storage device's water inlet and the second work position of opening water storage device's water inlet, when the water level in the water storage device is higher than the water level threshold value, the float is in first work position, still on water storage device's water inlet department or the flushing line between water storage device and the pure water mouth in the A flow choking part is arranged.

Therefore, the water purifier with the structure can store the pure water in the water storage device after the water taking of the user is finished. And then, the stored pure water enters the reverse osmosis filter element from a raw water port of the reverse osmosis filter element, and the pure water is discharged from a concentrated water port of the reverse osmosis filter element, so that the reverse osmosis filter element is positively flushed. Thereby can reduce in the reverse osmosis filter core because the ion of membrane preceding former aquatic is too much, avoid its obvious diffusion phenomenon to appear, and then when can making next water intaking, the TDS value of first section water is lower. Meanwhile, the frequent starting of the water purifier due to the flushing of the reverse osmosis filter element is avoided. The service life of the water purifier is prolonged. And, set up the float in the water storage device, can utilize the water level in the water storage device to realize opening and closing of water storage device's water inlet. The water purifier has the advantages that devices such as valves are not arranged at the water inlet of the water storage device, and the internal structure of the water purifier is simplified.

Illustratively, the float has a protrusion that blocks the water inlet of the water storage device when the float is in the first operating position.

The floater with the structure has simple structure and is easy to realize. The shape of the protrusion may be determined according to the shape of the water inlet of the water storage device. Because of the presence of the protrusion, there may be no shape requirement for the portion of the float floating on the water surface, so that it only has a low density, without shape restrictions.

Illustratively, a guide member is further disposed within the water storage device, along which the float is translatable between the first and second operating positions.

Therefore, the water purifier with the structure can limit the translation path of the floater in the water storage device. The float has directional translation during the process of rising with rising water level and falling with falling water level, thereby ensuring the success rate of opening and closing the water inlet of the water storage device.

Illustratively, the guide comprises a pipe body connected to the water inlet of the water storage device, the diameter of the water inlet of the water storage device is smaller than the inner diameter of the pipe body, the protrusion is located at a first position in the pipe body when the float is located at a first working position, the protrusion is located at a second position in the pipe body when the float is located at a second working position, and the pipe body is provided with a through hole.

The water purifier with the structure has a simple structure and is easy to realize.

Illustratively, the tip of the protrusion is conical or hemispherical in shape.

The protruding part with the structure can play a good sealing effect on the water inlet of the water storage device when the water inlet of the water storage device is blocked.

Illustratively, the float is pivotably connected to the water storage device, the float being rotatable between a first operating position and a second operating position.

Therefore, the water purifier with the structure is simple in structure, and due to the fact that the floater is in pivot connection with the water storage device, a guide piece does not need to be arranged in the water storage device, and the structure inside the water purifier is simplified.

The flow blocking element may comprise a resilient element connected between the float and the water storage means, the resilient element having a first elastic potential energy when the float is in the first operating position and a second elastic potential energy when the float is in the second operating position, the first elastic potential energy being less than the second elastic potential energy.

Therefore, the water purifier with the structure can integrate the flow resisting part on the floater, improve the integration level of the floater and reduce the space occupied by the flow resisting part in the water purifier.

Illustratively, the choke piece includes the first check valve that has the opening pressure value, and first check valve sets up on the flushing line, and the direction of opening of first check valve is by the pure water mouth of reverse osmosis filter core to water storage device.

The water purifier with the structure can generate resistance on the flushing pipeline by using the check valve with resistance. The check valves have various specifications and types and complete products, so the check valves can be arranged in water purifiers with various diameters and flow rates. The time for selecting the model is reduced, the design period is shortened, and the cost of the product is reduced.

Exemplarily, the water purifier further comprises a controller and a water outlet control device, wherein the controller is electrically connected with the booster pump and the water outlet control device; the controller is used for starting the booster pump when receiving a starting electric signal of the water outlet control device and controlling the booster pump to stop working after a first time period from the time when the starting electric signal is received.

The water purifier with the structure has the advantages that a user can control the working state of the booster pump through the controller and the water outlet control device, the logic is simple, and the realization is easy.

Illustratively, the water outlet control device is a high-pressure switch, the high-pressure switch is arranged on a main water pipeline between a pure water port and a water taking end of the reverse osmosis filter element, and the controller is also electrically connected with the flushing electromagnetic valve; the controller is also used for controlling the flushing solenoid valve to be opened when receiving a shutdown electric signal of the high-pressure switch, and controlling the flushing solenoid valve to be closed when the booster pump stops working or receiving a startup electric signal.

In the water purifier with the structure, the whole machine control can be realized by utilizing the high-voltage switch, the water path structure is simple, and the cost is lower.

Exemplarily, the purifier still includes the drainage solenoid valve, and the drainage solenoid valve sets up in the dense water mouth department of reverse osmosis filter core, and the controller still electricity is connected the drainage solenoid valve, and the controller still is used for controlling the drainage solenoid valve and switches on in first time quantum.

Therefore, the water purifier with the water discharge electromagnetic valve can ensure that the raw water in the reverse osmosis filter element can be discharged as soon as possible without damaging the reverse osmosis filter element.

Illustratively, the water outlet control device is an electric control faucet which is arranged at the water taking end, a liquid level sensor is arranged in the water storage device or a flow sensor is arranged on a flushing pipeline between the water storage device and the pure water port, the liquid level sensor is used for detecting liquid level information in the water storage device, and the flow sensor is used for detecting flow information in the pipeline; the controller is also electrically connected with a liquid level sensor or a flow sensor, and the controller is also electrically connected with a flushing electromagnetic valve; the controller is also used for controlling the flushing solenoid valve to be opened according to the liquid level information from the liquid level sensor or the flow information from the flow sensor, and controlling the flushing solenoid valve to be closed when the booster pump stops working or when a starting electric signal is received.

In the water purifier with the structure, the electric control faucet and the sensor are matched together to realize the control of the whole machine, so that the control result is more accurate. Therefore, effective utilization of electric energy and water energy can be guaranteed, and waste is avoided.

Illustratively, a second check valve is arranged on the flushing pipeline, the second check valve is arranged between the flushing electromagnetic valve and the water inlet of the booster pump, and the conduction direction of the second check valve is from the flushing electromagnetic valve to the water inlet of the booster pump.

Therefore, raw water flowing from the water inlet end of the water purifier can be prevented from entering the water storage device, the water in the water storage device is prevented from being polluted by the raw water, and the water quality in the water storage device is ensured. Furthermore, the washing of the reverse osmosis filter element by the pure water is ensured, and the water quality of the water purifier is ensured.

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 an exemplary embodiment of the present invention;

fig. 2 is a schematic view of a float and water storage device according to an exemplary embodiment of the present invention;

fig. 3A and 3B are schematic views of a float and water storage device according to another exemplary embodiment of the present invention, wherein fig. 3A shows the float in a first working position, and fig. 3B shows the float in a second working position.

Wherein the figures include the following reference numerals:

100. a main water line; 101. a water inlet end; 102. a water taking end; 110. a booster pump; 111. a water inlet; 120. a reverse osmosis filter element; 121. a pure water port; 123. a dense water port; 130. a water discharge electromagnetic valve; 200. flushing the pipeline; 210. a water storage device; 211. a water inlet; 220. flushing the electromagnetic valve; 230. a guide member; 231. a through hole; 240. a second check valve; 300. a float; 310. a protrusion; 400. 400' and a flow resisting element.

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, an embodiment of the present invention provides a water purifier. The water purifier includes a main water line 100 communicating a water inlet 101 and a water outlet 102 of the water purifier. A booster pump 110 and a reverse osmosis filter 120 are sequentially provided in the main water line 100 in a water flow direction. The booster pump 110 is used to increase the pressure of raw water, and to press the raw water into the reverse osmosis filter element 120, so that the reverse osmosis filter element 120 filters the raw water. The water purifier further comprises a flushing pipeline 200, and the flushing pipeline 200 is communicated between the pure water port 121 of the reverse osmosis filter element 120 and the water inlet 111 of the booster pump 110. A water storage device 210 and a flushing solenoid valve 220 are sequentially disposed on the flushing line 200 in a direction from the pure water port 121 to the water inlet 111 of the booster pump 110.

The water storage device 210 is used for storing the pure water filtered by the reverse osmosis filter element 120, and the pure water is used for flushing the reverse osmosis filter element 120 after the user finishes the water taking operation. The flushing solenoid valve 220 is used to connect or disconnect the water storage device 210 and the main water pipeline 100. A float 300 is provided in the water storage device 210. At least a portion of the float 300, which is less dense than water, has the ability to float on the surface of the water, which can float as the water level within the water storage device 210 changes, to change the position of the float 300 within the water storage device 210. On the path along which the float 300 moves, there are a first operation position closing the water inlet 211 of the water storage device 210 and a second operation position opening the water inlet 211 of the water storage device 210. When the water level in the water storage device 210 is higher than the water level threshold value, the floater 300 moves up to the first working position along with the water level, and the water inlet 211 of the water storage device 210 is closed. Therefore, the float 300 can be used to close off the water inlet 211 of the water storage device 210.

A flow blocking member 400 is further provided at the water inlet 211 of the water storage device 210 in the water storage device 210 or on the flushing line 200 between the water storage device 210 and the pure water port 121 of the reverse osmosis filter element 120. The choke 400 serves to generate a certain resistance to the pure water flowing into the water storage 210 from the pure water port 121 so that a certain pressure may be generated in the water in the rinsing line between the pure water port 121 and the water inlet 211 of the water storage 210. When the water pressure in the section of the flushing line reaches a level that can overcome the resistance of the flow resisting member 400, water can flow into the water storage device 210. The choke 400 may be a damper or even a valve. When water needs to be stored in the water storage device 210, the valve is opened; when it is not necessary to store water in the water storage device 210, the valve is closed. If the choke 400 is provided on the flushing line 200, the float 300 will drop with the water level to open the water inlet 211 of the water storage device 210 when the water level in the water storage device 210 is not above the water level threshold, but water will also need to overcome the resistance to enter the water storage device 210 due to the choke 400 on the flushing line 200. Whereas, if the choke 400 is disposed at the water inlet 211 of the water storage device 210, in one example, the choke 400 may control the float 300 such that the float 300 is in the first operational position even if the water level within the water storage device 210 is not above the water level threshold, thereby closing the water inlet 211 of the water storage device 210. In this example, the float does not open the water inlet 211 of the water storage device 210 as the water level decreases. Which will also be described in detail below.

In the process of taking water from a user, the booster pump 110 is started, and raw water passes through the reverse osmosis filter element 120 to generate pure water. The pure water port 121 is respectively communicated with the flushing pipeline 200 and a water outlet device at the water taking end 102, and the water outlet device can be a tap and the like. However, since the choke 400 is provided at the flushing line 200 or at the water inlet 211 in the water storage device 210 communicating with the flushing line 200, pure water is discharged from the water discharge device to be taken by the user according to the principle that water flows in a direction of low pressure, and cannot flow into the water storage device 210. After the user stops getting water and closes the faucet, the booster pump 110 continues to operate, and the pure water generated by the reverse osmosis filter element 120 at this time will continuously raise the water pressure downstream thereof. When the water pressure is higher than the resistance of the flow blocking member 400, the pure water generated from the reverse osmosis filter element 120 flows into the water storage device 210 through the flushing line 200 against the resistance of the flow blocking member 400. The water level in the water storage means 210 will rise. The water storage device 210 may be a water tank or a pressure tank. Taking the example where the choke 400 is disposed on the flushing line 200, the water level in the water storage device 210 is not higher than the water level threshold value when water is not stored in the water storage device 210. The float 300 will be in the second operating position with the water inlet 211 of the water storage means 210 open. When the water level in the water storage device 210 is higher than the water level threshold, the float 300 is at the first working position, and the water inlet 211 of the water storage device 210 is closed. At this point, the flush solenoid valve 220 may be opened. The condition for the flushing solenoid valve 220 to open may be time controlled, i.e. the time threshold for water to be stored in the water storage means 210 determines the moment of opening of the flushing solenoid valve 220. The condition under which the flush solenoid valve 220 is open may also be determined by pressure. A pressure sensor may be provided in the main water line 100. When the float 300 closes the water inlet 211 of the water storage device 210, the pure water generated by the reverse osmosis filter element 120 will increase the pressure in the downstream pipeline, such as the downstream main water pipeline 100. The flush solenoid valve 220 may be opened when the pressure in the downstream line rises to a pressure threshold set by the pressure sensor. At the time when the flush solenoid valve 220 is opened, the water storage phase for storing water into the water storage device 210 is completed.

At this time, the water purifier enters a flushing stage. The water storage device 210 is communicated with the water inlet 111 of the booster pump 110 through a flushing solenoid valve 220. The pressurizing pump 110 presses the pure water in the water storage device 210 into the reverse osmosis filter element 120 to flush the reverse osmosis filter element 120. In other words, it can be understood that the pure water in the water storage device 210 is used to replace the raw water in the reverse osmosis filter element 120, thereby achieving the purpose of pure water bubble membrane. And the flushing stage is finished, the booster pump 110 stops working, the flushing electromagnetic valve 220 is closed, and the water purifier enters a standby state. The end of the flushing stage can be achieved in various ways, for example, by providing a liquid level sensor in the water storage device 210, and when the liquid level in the water storage device 210 is lower than a liquid level threshold, the above-mentioned actions are completed, so that the water purifier enters a standby state. For example, the flushing time may be accumulated by a timer, and the flushing stage may be ended based on the accumulated flushing time. When the user takes the next time, the user can take the first stage of water with a lower TDS value because the reverse osmosis filter element 120 has been flushed of pure water.

Accordingly, the water purifier having this configuration can store pure water in the water storage device 210 after the user finishes taking water. And then, the stored pure water enters the reverse osmosis filter element from a raw water port of the reverse osmosis filter element, and the pure water is discharged from a concentrated water port of the reverse osmosis filter element, so that the reverse osmosis filter element is positively flushed. Thereby can reduce in the reverse osmosis filter core because the ion of membrane preceding former aquatic is too much, avoid its obvious diffusion phenomenon to appear, and then when can making next water intaking, the TDS value of first section water is lower. Meanwhile, the frequent starting of the water purifier due to the flushing of the reverse osmosis filter element 120 is avoided. The service life of the water purifier is prolonged. Further, the float 300 is provided in the water storage device 210, and the water inlet 211 of the water storage device 210 can be opened and closed by the water level in the water storage device 210. The water inlet 211 of the water storage device 210 is not separately provided with a valve and other devices, and the internal structure of the water purifier is simplified.

A second check valve 240 is also illustratively provided on the flush line 200. The second check valve 240 is disposed between the rinse solenoid valve 220 and the water inlet 111 of the booster pump 110. The second check valve 240 is conducted from the flushing solenoid valve 220 to the water inlet 111 of the booster pump 110. That is, the water flow can only flow from the water reservoir 210 to the main water line 100, but not in the reverse direction.

Therefore, raw water flowing from the water inlet end 101 of the water purifier can be prevented from entering the water storage device 210, the raw water is prevented from polluting water in the water storage device 210, and the water quality in the water storage device 210 is ensured. Furthermore, the pure water is ensured to flush the reverse osmosis filter element 120, and the water quality of the water purifier is ensured.

Illustratively, the water purifier further comprises a controller and a water outlet control device, wherein the controller is electrically connected with the booster pump 110 and the water outlet control device. The controller is used for starting the booster pump 110 when receiving a starting electric signal of the water outlet control device so as to supply water to the reverse osmosis filter element 120. The controller is also configured to control the booster pump 110 to stop operating after a first time period T1 since the shutdown electrical signal is received. Thus, water can be stored in the water storage device 210 for flushing the reverse osmosis filter element 120 after the user stops taking water.

The controller can be built by adopting electronic elements such as a timer, a comparator, a register, a digital logic circuit and the like, or can be realized by adopting processor chips such as a singlechip, a microprocessor, a Programmable Logic Controller (PLC), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), a Programmable Logic Array (PLA), an Application Specific Integrated Circuit (ASIC) and the like and peripheral circuits thereof.

The water purifier with the structure has the advantages that a user can control the working state of the booster pump 110 through the controller and the water outlet control device, the logic is simple, and the realization is easy.

Illustratively, the water outlet control device may be a high-pressure switch. The high-pressure switch may be disposed on the main water line 100 between the pure water port 121 of the reverse osmosis cartridge 120 and the water intake end 102 of the water purifier. The controller is also electrically connected with the flushing solenoid valve. The controller is also used to control the flushing solenoid valve 220 to be opened when receiving a shutdown electric signal of the high-pressure switch, and to control the flushing solenoid valve 220 to be closed while controlling the booster pump 110 to stop operating or when receiving a startup electric signal.

When the user begins to take water, the high-voltage switch sends a power-on electric signal to the controller. After receiving the power-on signal, the controller controls the booster pump 110 to start, and the user can receive the pure water generated by the filtration of the reverse osmosis filter element 120. This stage is the user's water intake stage. As previously described, during the water intake phase, the water flows to the water intake end 102 instead of the water storage device 210 due to the choke. After the user stops taking water, the booster pump 110 continues to operate to store water into the water storage device 210 until the float 300 closes the water inlet 211 of the water storage device 210. The booster pump 110 continues to operate until the pressure in the pipe where the high-pressure switch is located rises to the actuation pressure value of the high-pressure switch, at which point the water storage device 210 is considered to be full. This stage is the water storage stage of the water storage device 210. When the pressure value in the pipeline where the high-voltage switch is located reaches the action pressure value of the high-voltage switch, the high-voltage switch sends a shutdown electric signal to the controller. It will be appreciated that the timing at which the high voltage switch sends the shutdown electrical signal lags behind the time at which the user stops getting water. During this lag time, water is stored in the water storage device 210. The controller will control the flush solenoid valve 220 to open upon receiving a power off signal. At this point, the purifier enters the reverse osmosis cartridge 120 flush stage. The booster pump 110 may press the pure water in the water storage device 210 into the reverse osmosis filter element 120 to flush the reverse osmosis filter element 120. After the first time period T1 from the reception of the shutdown electric signal, the controller will control the booster pump 110 to stop working, and the flushing stage is completed. During this first time period T1, the purifier completes the flushing operation of the reverse osmosis cartridge 120. The first time period T1 may be determined according to a timer. In this case, the controller is also electrically connected to the timer. Alternatively, the first time period T1 may also be determined from a level sensor. A first liquid level sensor may be disposed in the water storage device 210, and when the liquid level in the water storage device 210 is lower than a first liquid level threshold, it is determined that the first time period T1 is reached, the flushing operation is completed, and the water purifier enters a standby state. Alternatively, the flushing solenoid valve 220 may be controlled to close simultaneously after the first time period T1 is reached. Of course, the flushing solenoid valve 220 may be controlled to close to prepare for the water storage device 210 to store water when the user gets water next time and receives the power-on signal.

It will be understood that the actuation pressure value of the high-pressure switch should be greater than the resistance value of the resistive element 400, i.e. the maximum pressure value that the resistive element 400 is able to bring to the pressure in the line in which it is located. The pure water discharged from the pure water port 121 of the reverse osmosis filter element should be able to overcome the resistance of the flow blocking member 400 and store the water in the water storage device 210. When the water storage device 210 is full, the high voltage switch is turned off only when the pressure is further increased, so that the high voltage switch sends a shutdown electric signal to the controller.

Illustratively, the water purifier further comprises a drain solenoid valve 130, and the drain solenoid valve 130 is disposed at the concentrate inlet 123 of the reverse osmosis filter element 120. The controller is also electrically connected to a drain solenoid valve 130. The controller may also be configured to control the drain solenoid valve 130 to conduct during the first time period T1. In other words, when the water purifier is in the flushing stage, the water discharge solenoid valve 130 is turned on, so that the pure water entering the reverse osmosis filter element 120 can be utilized to discharge the raw water previously entering the reverse osmosis filter element 120 through the concentrate inlet 123. And the drain solenoid valve 130 is turned on only in the flushing stage, so that the filtering operation of the reverse osmosis cartridge 120 is not affected when water is taken.

Therefore, the water purifier with the water discharge solenoid valve 130 can ensure that the raw water in the reverse osmosis filter element 120 is discharged as soon as possible without damaging the reverse osmosis filter element 120.

Alternatively, the water outlet control device can also be an electric control faucet, a pipeline machine and the like. An electrically controlled faucet or line machine may be provided at the water intake end 102 of the water purifier. A liquid level sensor is arranged in the water storage device 210, or a flow sensor is arranged on the flushing pipeline 200 and between the water storage device 210 and the pure water port 121 of the reverse osmosis filter element 120. The liquid level sensor is used for detecting liquid level information in the water storage device 210. The flow sensor is used for detecting flow information in the pipeline. The controller is also electrically connected to the flush solenoid valve 220, and the controller is also electrically connected to a level sensor or flow sensor. The controller is also used to control the flushing solenoid valve 220 to be opened according to the liquid level information from the liquid level sensor or the flow rate information from the flow rate sensor, and to control the flushing solenoid valve 220 to be closed while controlling the booster pump 110 to stop operating or upon receiving a power-on electric signal.

Taking the electric control faucet as an example, the controller starts the booster pump 110 when receiving the power-on electric signal of the electric control faucet, and starts the water intake stage. When the electric control faucet is turned off, the water storage stage of the water storage device 210 is started. It will be appreciated that the time at which the electrically controlled tap sends the electrical shut-off signal is substantially equivalent to the time at which the user stops getting water. In one example, a second liquid level sensor may be disposed within the water storage device 210. The second liquid level sensor is used for detecting liquid level information in the water storage device 210. The second liquid level sensor is electrically connected with the controller. When the liquid level in the water storage device 210 is higher than the water level threshold, the water storage device 210 may be considered to be full, and the controller may control the flushing solenoid valve 220 to open when the liquid level is higher than the water level threshold according to the liquid level information from the second liquid level sensor. In another example, a flow sensor is provided on the flushing line 200 between the water storage 210 and the pure water port 121. The controller may determine the amount of water flowing into the water storage device 210 from the reception of the power-off signal of the electrically controlled faucet according to the flow information from the flow sensor. When the amount of water reaches the preset flow value, it may be considered that the water storage means 210 is full. The purifier enters the reverse osmosis cartridge 120 flush stage. The booster pump 110 may press the pure water in the water storage device 210 into the reverse osmosis filter element 120 to flush the reverse osmosis filter element 120. After the first time period T1 from the reception of the shutdown electric signal, the controller will control the booster pump 110 to stop working, and the flushing stage is completed. During the first time period T1 of the present example, the water purifier completes the water storage operation of water storage device 210 and the flushing operation of reverse osmosis cartridge 120. Similarly to the example of the high voltage switch, the first period T1 may be determined according to a timer. Alternatively, the first time period T1 may also be determined based on the first liquid level sensor. A first liquid level sensor may be disposed in the water storage device 210, and when the liquid level in the water storage device 210 is lower than a first liquid level threshold, it is determined that the first time period T1 is reached, the flushing operation is completed, and the water purifier enters a standby state. Likewise, the flush solenoid valve 220 may be simultaneously controlled to close after the first time period T1. Of course, the flushing solenoid valve 220 may be controlled to close to prepare for the water storage device 210 to store water when the user gets water next time and receives the power-on signal.

It will be appreciated that in the example where the outlet control device is an electrically controlled faucet, a pipeline machine, etc., the water purifier may also include a drain solenoid valve 130. When the water purifier is in the flushing stage, the water discharge solenoid valve 130 is turned on, so that the pure water entering the reverse osmosis filter element 120 can be utilized to discharge the raw water previously entering the reverse osmosis filter element 120 through the concentrate inlet 123. And the drain solenoid valve 130 is turned on only in the flushing stage, so that the filtering operation of the reverse osmosis cartridge 120 is not affected when water is taken.

Illustratively, as shown in fig. 2, the float 300 disposed in the water storage device 210 has a protrusion 310, and the protrusion 310 blocks the water inlet 211 of the water storage device 210 when the float 300 is in the first operating position. The protrusion 310 may have a larger cross-section than the water inlet 211 cross-section of the water storage device 210. When the float 300 rises to the water level threshold value with the water level, the protrusion 310 blocks the water inlet 211 of the water storage device 210. Alternatively, the protrusion 310 may be made of a material having elasticity, such as silicon gel, so as to more desirably block the water inlet 211 of the water storage device 210.

The float 300 having this structure is simple in structure and easy to implement. The shape of the protrusion 310 may be determined according to the shape of the water inlet 211 of the water storage device 210. Because of the presence of the protrusion 310, there may be no shape requirement for the portion of the float 300 floating on the water surface, so that it only has a low density, without limitation in shape.

Illustratively, a guide 230 may also be provided within the water storage device 210. The float 300 is translatable along the guide 230 between a first operating position and a second operating position. The guide 230 can be of various types, such as a tube that fits over the exterior of the float 300. The tube may be disposed at the bottom of the water storage device 210. The float 300 may translate along the axis of the tube as the water level within the water storage device 210 changes. For another example, the guide 230 may be a guide rail, and the float 300 may be provided with a sliding member that can slide along the guide rail. With the guide rail, the moving path of the float 300 can be made directional.

Therefore, the water purifier with the structure can limit the translation path of the floater 300 in the water storage device 210. The translation of the float 300 is directional in the process of rising as the water level rises and falling as the water level falls, thereby ensuring a success rate of opening and closing the water inlet 211 of the water storage means 210 by the float 300.

Illustratively, as shown in fig. 2, the guide 230 includes a tube body connected to the water inlet 211 of the water storage device 210. The water inlet 211 of the water storage device 210 may be disposed at the top of the water storage device 210. The water inlet 211 of the water storage device 210 has a diameter smaller than the inner diameter of the tube, and when the float 300 is at the first working position, the protrusion 310 is located at the first position in the tube, i.e. the position shown in fig. 2. When the float 300 is in the second operating position, the protrusion 310 is in a second position (not shown) within the body, the second position being lower than the first position. The pipe body is provided with a through hole 231. When the protrusion 310 is located at the first position, the float 300 may block the water inlet 211 of the water storage device 210 using the protrusion 310. When the protrusion 310 is located at the second position, the protrusion 310 and the water inlet 211 of the water storage device 210 are spaced apart from each other, and the water storage device 210 is communicated with the flushing pipe 200 due to the through hole 231 on the pipe body.

Illustratively, the tip of the protrusion 310 is conical or hemispherical in shape. When the water inlet 211 of the water storage device 210 is blocked, the top of the cone or the top of the hemisphere may extend into the water inlet 211 of the water storage device 210, and the water inlet 211 of the water storage device 210 is blocked by the surfaces of the cone and the hemisphere. The protrusion 310 having this structure can provide a good sealing effect with respect to the water inlet 211 of the water storage device 210 when the water inlet 211 of the water storage device 210 is closed.

Illustratively, as shown in fig. 3A and 3B, the float 300 is pivotably connected to the water storage device 210, the float 300 being rotatable between a first operating position and a second operating position. Illustratively, the float 300 is pivotably connected to the water inlet 211 of the water storage device 210, and the black dots at the water inlet 211 of the water storage device 210 in fig. 3A and 3B represent the pivot axis of the float 300 with the water inlet 211 of the water storage device 210. Fig. 3B shows the float 300 in the second operating position with the water inlet 211 of the water storage means 210 open. During the process of storing water into the water storage device 210, the float 300 can rotate counterclockwise around the pivot shaft, thereby changing from the first working position to the second working position, and opening the water inlet 211 of the water storage device 210. When the water level in the water storage device 210 rises to the high water level threshold, as shown in fig. 3A, the float 300 rises with the water level and rotates clockwise, so that the water level will change to the first working position, and the water inlet 211 of the water storage device 210 is blocked.

Therefore, the water purifier with the structure has a simple structure, and the floater 300 is pivotally connected with the water storage device 210, so that a guide part does not need to be arranged in the water storage device 210, and the structure in the water purifier is simplified.

For example, the choke 400 may be a first check valve having a value of opening pressure, which may be provided on the flushing line 200, as shown in fig. 1. The first check valve is conducted from the pure water port 121 of the reverse osmosis filter element 120 to the water storage device 210.

The water purifier with the structure can generate resistance on the flushing pipeline 200 by using the check valve with resistance. The check valves have various specifications and types and complete products, so the check valves can be arranged in water purifiers with various diameters and flow rates. The time for selecting the model is reduced, the design period is shortened, and the cost of the product is reduced.

Illustratively, the spoilers 400' also include springs. The elastic member is connected between the float 300 and the water storage device 210, and has a first elastic potential energy when the float 300 is at the first working position, and a second elastic potential energy when the float 300 is at the second working position, and the first elastic potential energy is smaller than the second elastic potential energy. As shown in fig. 3B, the elastic member may be a spring, both ends of which are respectively provided on the float 300 and the water storage means 210. The spring can make the float 300 have a movement tendency to close the water inlet 211 of the water storage means 210 by its own elastic potential energy. During the process of storing water into the water storage device 210, the water flow pushes the float 300 to overcome the first elastic potential energy, and the water inlet 211 of the water storage device 210 is opened. The elastic member may pull the float 300 such that the float 300 closes the water inlet 211 of the water storage device 210. It will be appreciated that an elastic member (not shown) may be provided between the float 300 and the water storage device 210 as shown in fig. 2 to act as a flow blocking member to provide resistance to the flow of water through the flush line 200 into the water storage device 210.

Therefore, the water purifier with the structure can integrate the choker 400 'on the floater 300, improve the integration level of the floater 300 and reduce the space occupied by the choker 400' in the water purifier.

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. A water purifier comprises a main water pipeline (100) communicated with a water inlet end (101) and a water outlet end (102) of the water purifier, a booster pump (110) and a reverse osmosis filter element (120) are sequentially arranged on the main water pipeline along the water flow direction, and the water purifier is characterized in that,

the water purifier also comprises a flushing pipeline (200), the flushing pipeline is communicated between a pure water port (121) of the reverse osmosis filter element and a water inlet (111) of the booster pump, a water storage device (210) and a flushing electromagnetic valve (220) are sequentially arranged on the flushing pipeline along the direction from the pure water port to the water inlet of the booster pump, wherein,

a float (300) is arranged in the water storage device, the float can float along with the water level change in the water storage device, the float is provided with a first working position for closing a water inlet (211) of the water storage device and a second working position for opening the water inlet of the water storage device, when the water level in the water storage device is higher than a water level threshold value, the float is in the first working position,

a flow blocking piece is further arranged at the water inlet of the water storage device in the water storage device or on a flushing pipeline between the water storage device and the pure water port.

2. The water purifier according to claim 1, wherein the float (300) has a protrusion (310) that blocks the water inlet (211) of the water storage means (210) when the float is in the first operating position.

3. The water purification machine according to claim 2, wherein a guide (230) is further provided inside said water storage means (210), along which said float (300) is translatable between said first work position and said second work position.

4. The water purification machine according to claim 3, wherein the guide (230) comprises a tubular body connected to the water inlet (211) of the water storage device (210), the diameter of the water inlet of the water storage device being smaller than the inner diameter of the tubular body, the protrusion (310) being located in a first position inside the tubular body when the float (300) is in the first working position, the protrusion being located in a second position inside the tubular body when the float is in the second working position, the tubular body being provided with a through hole (231).

5. The water purifier according to any one of claims 2-4, wherein the top end of the protrusion (310) is conical or hemispherical.

6. Water purifier according to claim 1 or 2, wherein the float (300) is pivotably connected to the water storage means (210), the float being rotatable between the first operating position and the second operating position.

7. Water purifier according to any one of claims 1 to 4, wherein said obstructing element comprises a spring connected between said float (300) and said water storage means (210), said spring having a first elastic potential energy when said float is in said first working position, said spring having a second elastic potential energy when said float is in said second working position, said first elastic potential energy being smaller than said second elastic potential energy.

8. The water purification machine according to any one of claims 1 to 4, wherein the flow-obstructing element comprises a first non-return valve having a value of opening pressure, said first non-return valve being arranged on the flushing line (200), said first non-return valve being in a direction leading from a clean water port (121) of the reverse osmosis cartridge (120) to the water storage means (210).

9. The water purifier according to any one of claims 1-4, further comprising a controller and a water outlet control device, wherein the controller is electrically connected with the booster pump (110) and the water outlet control device;

the controller is used for starting the booster pump when receiving the starting electric signal of the water outlet control device, and controlling the booster pump to stop working after a first time period since the starting electric signal of the water outlet control device is received.

10. The water purifier according to claim 9, wherein the outlet control device is a high pressure switch disposed on the main water line (100) between the pure water port (121) of the reverse osmosis cartridge (120) and the water intake (102), and the controller is further electrically connected to the flushing solenoid valve (220);

the controller is also used for controlling the flushing electromagnetic valve to be opened when receiving a power-off electric signal of the high-voltage switch, and controlling the flushing electromagnetic valve to be closed when controlling the booster pump (110) to stop working or receiving the power-on electric signal.

11. The water purification machine according to claim 10, further comprising a drain solenoid valve (130) disposed at a concentrate port (123) of the reverse osmosis cartridge (120), wherein the controller is further electrically connected to the drain solenoid valve, and wherein the controller is further configured to control the drain solenoid valve to conduct during the first time period.

12. The water purifier according to claim 9, wherein the water outlet control device is an electrically controlled faucet disposed at the water intake end (102), a liquid level sensor is disposed in the water storage device (210) or a flow sensor is disposed on the flushing pipe (200) between the water storage device and the purified water port (121), the liquid level sensor is used for detecting liquid level information in the water storage device, and the flow sensor is used for detecting flow information in the pipe;

the controller is also electrically connected to the level sensor or the flow sensor, and the controller is also electrically connected to the flush solenoid valve (220);

the controller is also used for controlling the flushing electromagnetic valve to be opened according to liquid level information from a liquid level sensor or flow information from the flow sensor, and controlling the flushing electromagnetic valve to be closed when the booster pump (110) stops working or when the power-on electric signal is received.

13. The water purifier as recited in claim 1, characterized in that a second non-return valve (240) is arranged on said flushing line (200), said second non-return valve being arranged between said flushing solenoid valve (220) and said water inlet (111) of said booster pump (110), said second non-return valve being conducted in a direction from said flushing solenoid valve to said water inlet of said booster pump.