CN212315651U

CN212315651U - Water purifier

Info

Publication number: CN212315651U
Application number: CN202020887986.XU
Authority: CN
Inventors: 杨浩; 张辉; 王洪坤; 刘陶; 朱萍萍; 贺素平
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-01-08
Anticipated expiration: 2030-05-22

Abstract

The utility model provides a water purifier, which comprises a main water pipeline, wherein a reverse osmosis filter element is arranged on the main water pipeline, and a first resistance valve is arranged between a pure water port of the reverse osmosis filter element and a water intake of the water purifier on the main water pipeline; with the parallelly connected water storage pipeline of main water pipeline, set up water storage solenoid valve and water storage device on the water storage pipeline, water storage device includes: the water storage device comprises a first water storage cavity and a second water storage cavity, wherein the first water storage cavity is communicated to a pure water port through a water storage electromagnetic valve, the second water storage cavity is communicated with a water intake, and the water storage electromagnetic valve is arranged between the first water storage cavity and the pure water port; a first end of the drainage pipeline is communicated with the first water storage cavity, and a valve is arranged on the drainage pipeline; and the first high-pressure switch is arranged between the pure water opening and the first water storage cavity or between the pure water opening and the first resistance valve. This purifier is when solving first section water quality, and water control logic is simple, and the device is convenient for the lectotype, is favorable to reduce cost.

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 water drive device is arranged in the water purifier, pure water stored in the water drive device in advance is discharged by utilizing water with higher first-stage TDS for users to use, and the water drive device is stored for the next use after the users take the water. However, most of the conventional water purifiers having a water drive device control the switching of the water path by time, or switch the water path by detecting the flow of water using a water quality detector, a flow meter, or the like, which directly increases the product cost.

SUMMERY OF THE UTILITY MODEL

In order to at least partially solve the problems in the prior art, the utility model provides a water purifier, which comprises a main water pipeline, wherein the main water pipeline is communicated with a water inlet and a water intake of the water purifier, a reverse osmosis filter element is arranged on the main water pipeline, and a first resistance valve is also arranged between the reverse osmosis filter element and the water intake on the main water pipeline; the purifier still includes: water storage pipeline, water storage pipeline and main water pipeline are parallelly connected between the pure water mouth of reverse osmosis filter core and the intake, are provided with water storage solenoid valve and water storage device on the water storage pipeline, and water storage device includes: the water storage device comprises a first water storage cavity and a second water storage cavity, wherein the first water storage cavity is communicated to a pure water port through a water storage electromagnetic valve, the second water storage cavity is communicated to a water intake port, the respective volumes of the first water storage cavity and the second water storage cavity can be changed according to the water pressure in the cavities, the total volume of the first water storage cavity and the total volume of the second water storage cavity are unchanged, and the water storage electromagnetic valve is arranged between the first water storage cavity and the pure water port; a first end of the drainage pipeline is communicated to the first water storage cavity, and a valve is arranged on the drainage pipeline; and the first high-pressure switch is arranged between the pure water port and the first water storage cavity or between the pure water port and the first resistance valve.

The water purifier with the structure can utilize the first section of water with higher TDS controlled by the water storage electromagnetic valve to discharge pure water prepared in advance in the water storage device for the user to take, and after the first section of water is taken, under the combined action of the first high-pressure switch, the water storage electromagnetic valve and the first resistance valve, the water channel is automatically switched, so that the user can take pure water newly prepared by the reverse osmosis filter element. And after the user stops getting water, the water way is switched through the action of the first resistance valve and the valve, and pure water is fully stored in the water storage device for the user to take next time. Compared with the prior art, the water path control logic of the water purifier is simple, and only the basic device, the first resistance valve, the water storage electromagnetic valve and the first high-pressure switch of the existing water purifier are involved. And the product specifications of the resistance valve and the high-pressure switch are complete, the model selection is convenient, and the price is low. The valve 420 can also be replaced by a resistance valve, which is beneficial to reducing the cost of the water purifier.

Illustratively, a booster pump is further arranged on the upstream of the reverse osmosis filter element on the main water pipeline, and the second end of the drain pipeline is communicated to a water inlet of the booster pump.

Like this, the hydroenergy that has higher TDS can be through the water inlet that the drain line flows back to the booster pump to it filters once more to get into the reverse osmosis filter core, and the pure water of production holds in the second water storage chamber, makes the first segment water cycle who has higher TDS use, has avoided the waste to the water resource.

The water purifier further comprises a controller, the controller is electrically connected with the first high-voltage switch and the water storage electromagnetic valve, and the water storage electromagnetic valve is controlled to be closed after the controller receives an electric signal generated by the first high-voltage switch.

The controller is used for controlling each execution component in the water purifier, so that the control operation is more reliable and accurate.

Illustratively, the controller controls the water storage solenoid valve to be conducted after receiving the closing electric signal of the first high-voltage switch.

Therefore, the water storage electromagnetic valve can be controlled by a single device, control errors are avoided, and the stability of the water purifier is improved.

Exemplarily, a second high-voltage switch is further arranged between the first resistance valve and the water intake port on the main water pipeline, the controller is further electrically connected with the second high-voltage switch, and the water storage electromagnetic valve is controlled to be switched on after the controller receives a closing electric signal of the second high-voltage switch.

Therefore, the delay time of pressure conduction can be reduced, the sensitivity of the water purifier is improved, and the water quality of a user is ensured.

Illustratively, the first high pressure switch is disposed between the water storage solenoid valve and the first water storage chamber.

Therefore, the first high-pressure switch is arranged between the water storage electromagnetic valve and the first water storage cavity, so that the water pressure in the water storage device can be reduced at the moment that a user opens the water outlet device, the response is fast, the water storage electromagnetic valve is controlled to be switched on by the first high-pressure switch, and the delay time of pressure conduction is reduced.

Illustratively, the valve is a resistance valve, and the second on pressure value P2 of the valve is greater than both the first off pressure value P1' of the first high pressure switch and the first on pressure value P1 of the first resistance valve.

Therefore, the water path switching action of the water purifier can be accurate and error-free due to the valve arranged above, and the valve can also automatically open and close the pipeline of the water purifier, so that the control logic of the water purifier is simplified.

Illustratively, the valve is a resistance valve, and the second on pressure value P2 of the valve, the first off pressure value P1' of the first high pressure switch, and the first on pressure value P1 of the first resistance valve are sequentially decreased.

Therefore, the water flow direction of the water flow and the on-off state of each device on the water path can be more definite in the water production and storage processes of the water purifier.

Illustratively, a check valve is further arranged on the water storage pipeline at the upstream of the water storage device, and the communication direction of the check valve is the direction from the pure water port to the water storage device.

In the field of water purifiers, in order to improve the stopping capacity of the electromagnetic valve in a stopping state and prevent water leakage, when the electromagnetic valve is switched on, a water path can flow in two directions; in the off state, the water is not bidirectionally turned off but is in a unidirectional on state, but the on direction is opposite to the normal water flow direction. In order to prevent the water in the first water storage cavity from flowing back to the main water pipeline through the water storage electromagnetic valve when the water storage electromagnetic valve is closed, a check valve is arranged on the pipeline from the first water storage cavity to the main water pipeline.

Illustratively, a second water storage chamber communicates to the main water line downstream of the first resistance valve.

Therefore, when a user directly receives the pure water generated by the reverse osmosis filter element, the water flow can be prevented from being pressed into the second water storage cavity due to the action of the first resistance valve, so that the user is difficult to receive the water.

Illustratively, the first resistance valve and/or valve includes a valve housing and a valve spool disposed within the valve housing, the valve spool including a sealing member having a first position and a second position and a return member; when the sealing element is at the first position, the sealing element seals off the water inlet of the first resistance valve and/or the valve, and the resistance valve is closed; when the sealing member is at the second position, the sealing member is spaced from the first resistance valve and/or the water inlet of the valve, the resistance valve is conducted, and a force capable of moving the sealing member to the first position exists between the resetting member and the sealing member.

The resistance valve with the type can be replaced by a one-way valve with an opening pressure value in the prior art, and the resistance valve is complete in model, rich in variety, high in selectivity and capable of reducing product cost in the market.

Illustratively, the return member includes a spring portion.

The resistance valve with the spring part is simple in structure and easy to realize.

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; and

fig. 3 is a schematic view of a resistance valve according to 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 reverse osmosis filter element; 111. a pure water port; 112. a dense water port; 120. a booster pump; 200. a water storage pipeline; 210. a water storage solenoid valve; 220. a water storage device; 221. a first water storage cavity; 222. a second water storage cavity; 230. a check valve; 300. a drain line; 301. a first end of a drain line; 302. a second end of the drain line; 410. a first resistance valve; 420. a valve; 401. a valve housing; 402. a valve core; 403. a seal member; 404. a reset member; 510. a first high voltage switch; 520. a second high voltage switch; 600. a concentrated water electromagnetic 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 having a water inlet 101 and a water intake 102, and a main water pipe 100 communicating between the water inlet 101 and the water intake 102. Typically, the water inlet 101 may be connected to a water source such as a municipal water pipe, and the water intake 102 may be connected to a water outlet device, which may include a mechanical faucet, an electrically controlled faucet, and a pipeline machine. The main water line 100 is provided with a reverse osmosis filter element 110, and raw water may pass through the reverse osmosis filter element 110 and be filtered to generate drinkable pure water.

A first resistance valve 410 is also provided in the main water line 100 between the reverse osmosis cartridge 110 and the water intake 102. The resistance valve can be regarded as a one-way valve with a value of the through pressure. The resistance valve can be conducted only when the pressure difference between the water inlet and the water outlet of the resistance valve is larger than the conducting pressure value of the resistance valve; the pressure difference is less than or equal to the conducting pressure value, and the pressure difference is in a cut-off state. The first resistance valve 410 is connected in the main water line 100 from the reverse osmosis cartridge 110 to the water intake 102. The first resistance valve 410 has a first on pressure value. It will be appreciated that, since the first resistance valve 410 has a certain effective cross-sectional area, in other words, the first resistance valve 410 has a first value of the break-over pressure P1, for example any value between 0.15 and 0.2 MPa. One embodiment of the structure of the first resistance valve 410 will also be described in detail below.

The water purifier further comprises a water storage pipeline 200. The water storage line 200 is connected between the pure water port 111 and the water intake port 102 of the reverse osmosis filter element 110, and the water storage line 200 is connected in parallel to the main water line 100. The water storage line 200 is provided with a water storage solenoid valve 210 and a water storage device 220. The water storage solenoid valve 210 has on and off states. The water storage device 220 includes a first water storage chamber 221 and a second water storage chamber 222, the first water storage chamber 221 is connected to the pure water port 111, and the second water storage chamber 222 is connected to the water intake port 102. The first water storage chamber 221 and the second water storage chamber 222 are not communicated with each other, and the respective volumes thereof can be changed according to the water pressure in the chambers without changing the total volume of the two chambers. Specifically, the water storage device 220 having this structure may include a water drive device and the like in the related art. The water storage solenoid valve 210 may be disposed downstream of the water storage device 220, i.e., between the first water storage chamber 221 and the pure water port 111.

The water purifier further comprises a water discharge line 300. The first end 301 of the water discharge line is connected to the first water storage chamber 221, and the second end 302 of the water discharge line can be connected to a water inlet of the booster pump 120 described below, or can be directly connected to a water outlet (not shown) of the water purifier, which will be described in detail below. A valve 420, which may be a manual valve or an electric valve having an opening and closing function, or a resistance valve having an opening pressure value, which will be described in detail below, is further disposed on the drain line 300.

The water purifier also has a first high voltage switch 510. The first high pressure switch 510 may be disposed between the pure water port 111 and the first water storage chamber 221 or between the pure water port 111 and the first resistance valve 410. The working characteristic of the high-voltage switch is that when the water pressure in the pipeline where the high-voltage switch is located is greater than a set value, a disconnection electric signal is sent out; when the water pressure in the pipeline is smaller than the set value, a closing electric signal is sent out. Wherein the set point may be referred to as its trip pressure value. The first high voltage switch 510 has a first off pressure value. Since the effective area of the first high-pressure switch 510 is fixed, this pressure value corresponds uniquely to the first opening pressure value P1', for example, any value between 0.1 and 0.15 MPa.

With the water purifier arranged above, after the user opens the water taking device, the first section of water prepared by the reverse osmosis filter element 110 is filled into the first water storage cavity 221 of the water storage device 220, and the first water storage cavity 221 is utilized to extrude the pure water stored in the second water storage cavity 222 in advance, so that the pure water is received by the user. The user is prevented from accessing the first section of water with higher TDS. After the user finishes taking water, the second water storage cavity 222 can be fully stored by newly prepared pure water to wait for the next time the user takes water.

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

The standby state of the water purifier is a state before the water purifier starts the water purifying operation each time, and certainly is a state after the water purifier finishes the water purifying operation 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 to wait for the next water purifying operation.

When the water outlet device is closed and the water purifier is in standby, the second water storage cavity 222 of the water storage device 220 is filled with the prepared pure water. The water storage solenoid valve 210 is in a cut-off state. Valve 420 is also in the off state. The line in which the first high voltage switch 510 is located is in an open state.

In one embodiment, as shown in fig. 1, a water storage solenoid valve 210 is provided in the water storage line 200 in communication with the pure water port 111 of the reverse osmosis filter element 110. The first high pressure switch 510 is disposed between the water storage solenoid valve 210 and the first water storage chamber 221.

When the user opens the water outlet device to take water, the water intake 102 is communicated with the atmosphere. Therefore, the second water storage cavity 222 of the water storage device 220 is communicated with the atmosphere, which causes the water pressure in the first water storage cavity 221 to start to decrease from the water pressure maintained by the water purifier in the standby state, so that the water pressure in the pipeline where the first high-pressure switch 510 is located decreases. The first high-pressure switch 510 is closed, so that the water storage solenoid valve 210 is turned on. The water flow will flow out from the pure water port 111 of the reverse osmosis filter element 110. But is affected by the first resistance valve 410 of the main water line 100 and the valve 420 of the drain line 300, the water flow will only enter the first reservoir chamber 221 through the water storage solenoid valve 210. The first water flowing into the first water storage chamber 221 pushes the pre-stored pure water in the second water storage chamber 222 to flow out from the water intake 102 with the least resistance, and is received by the user. Therefore, the condition that the user receives the first section of water with higher TDS is avoided, and the water quality of the water is ensured.

In one example, after the water in the second water storage chamber 222 is completely drained and the first water storage chamber 221 is completely filled, the user still does not stop getting the water. The water flowing out of the pure water port 111 is subjected to the resistance of the second water storage chamber 222 in the water storage line 200, the first resistance valve 410 in the main water line 100 and the valve 420 in the drain line 300, and the water pressure at the pure water port 111 is continuously raised.

Illustratively, the valve 420 is also a resistance valve. And the second on pressure value P2 of the valve 420 is greater than both the first off pressure value P1' of the first high pressure switch 510 and the first on pressure value P1 of the first resistance valve (410). Thus, when the water in the second water storage cavity 222 is completely extruded and discharged by the water in the first water storage cavity 221, the pressure in the first water storage cavity 221 will reach the first off pressure value P1' of the first high-pressure switch 510, and after receiving the electric signal of the first high-pressure switch 510, the water storage solenoid valve 210 will be turned off, so that the newly prepared pure water flows to the water intake 102; or the pressure at the pure water port 111 reaches the conducting pressure value P1 of the first resistance valve 410 first, so that the user can smoothly take in the pure water. The situation that the pure water newly prepared by the reverse osmosis filter element 110 is discharged through the valve 420 when the first water storage cavity 221 just discharges the water in the second water storage cavity 222 does not occur.

Therefore, the parameters of the valve 420, the first high-pressure switch 510 and the first resistance valve 410 are set according to the above rules, so that not only can the waterway switching action of the water purifier be accurate and error-free, but also the valve 420 can automatically open and close the pipeline, and the control logic of the water purifier is simplified.

The following two situations that may occur in the water purifier after the water pressure at the purified water port 111 is continuously increased will be described in detail.

In the first case, the first off pressure value P1' of the first high pressure switch 510 is less than the first on pressure value P1 of the first resistance valve 410.

The water pressure at the pure water port 111 continuously rises and reaches the first cut-off pressure value P1' of the first high-pressure switch 510, the first high-pressure switch 510 is cut off, and the water storage solenoid valve 210 is turned off. The water flowing in from the pure water port 111 causes the water pressure in the pipeline to continuously rise, and when the water reaches the first conducting pressure value P1 of the first resistance valve 410, the water flow is discharged from the water intake 102 through the first resistance valve 410. At this time, the water received by the user is pure water directly prepared by the reverse osmosis filter element 110, not water previously stored in the second water storage chamber 222.

At this time, if the user stops getting water, the water purifier enters a water storage stage in the second water storage cavity 222 after the water outlet device is closed.

In the second case, the first off pressure value P1' of the first high pressure switch 510 is greater than the first on pressure value P1 of the first resistance valve 410.

During the rising water pressure of the pure water port 111, the first conduction pressure value P1 of the first resistance valve 410 will be reached first. The water discharged from the pure water port 111 first opens the first resistance valve 410, and is discharged from the intake port 102. At this time, the water received by the user is pure water directly prepared by the reverse osmosis filter element 110. If the user stops taking water, the water outlet device is closed, and a closed water path is formed from the pure water port 111 to the first water storage cavity 221 and from the pure water port 111 to the second water storage cavity 222. The water pressure in the waterway continues to rise. When the water pressure reaches the first off pressure value P1' of the first high pressure switch 510, the first high pressure switch 510 is turned off and the water storage solenoid valve 210 is turned off. The pure water discharged from the pure water port 111 will only flow into the main water line 100, and the water purifier will enter the water storage stage into the second water storage chamber 222.

After the user closes the water outlet device, the water storage stage of the second water storage cavity 222 is entered. In the stage of storing water in the second water storage cavity 222, the pure water port 111 is connected to the second water storage cavity 222, and the pressure of the second water storage cavity 222 is continuously increased. At this time, the valve 420 may be controlled to be opened, and of course, in the case that the valve 420 is a resistance valve, when the pressure in the second water storage chamber 222 reaches the second opening pressure value P2 of the resistance valve, the water in the first water storage chamber 221 will be pressed into the drain line 300 by the pure water in the second water storage chamber 222, so that the newly prepared pure water will be filled into the second water storage chamber 222.

After the volume of the first water storage chamber 221 cannot be compressed any more and the second water storage chamber 222 is filled with the newly prepared pure water, the water pressure in the main water line 100 continues to increase again.

Illustratively, a second high-pressure switch 520 may be further disposed on the main water line 100, and is located between the first resistance valve 410 and the water intake 102, for controlling the operation state of the water purifier. The second high pressure switch 520 has a second opening pressure value P2'. When the water pressure in the main water line 100 continues to rise to reach the second cut-off pressure value P2', the second high-pressure switch 520 is turned off, and the water purifier enters a standby state.

The second off pressure value P2' may be greater than the second on pressure value P2 of the valve 420. Thus, the water purifier can enter a standby state after the second water storage cavity 222 is full.

In another example, the water in second water storage chamber 222 is not completely drained, and the user turns off the water outlet device and stops taking water before the user receives pure water directly prepared by the water purifier. The whole working process of each device in the water purifier still can refer to the two working flows, and the detailed description is not provided.

Therefore, the first high-pressure switch 510 is disposed between the water storage solenoid valve 210 and the first water storage cavity 221, so that the water pressure in the water storage device 220 can be reduced at the moment when the user opens the water outlet device, thereby achieving quick response, turning on the water storage solenoid valve 210, and reducing the delay time of pressure conduction.

In another embodiment, as shown in FIG. 2, a first high pressure switch 510 is provided between the pure water port 111 and the first resistance valve 410. The first off pressure value P1' of the first high pressure switch 510 is greater than the first on pressure value P1 of the first resistance valve 410.

When the user opens the outlet to take water, the main water line 100 is open to the atmosphere downstream of the first resistance valve 410. The pressure difference between the water inlet and the water outlet of the first resistance valve 410 increases and the first resistance valve 410 is turned on. And the water pressure between the pure water port 111 and the first resistance valve 410 is reduced, and the water pressure between the pure water port 111 and the first resistance valve 410 is not lower than the first conducting pressure value P1 at the lowest under the influence of the resistance of the first resistance valve 400.

As the water pressure between the pure water port 111 and the first resistance valve 410 decreases, when the line water pressure at which the first high pressure switch 510 is located is lower than the first off pressure value P1', the first high pressure switch 510 is closed, so that the water storage solenoid valve 210 is turned on. The water discharged from the pure water port 111 enters the first water storage chamber 221, and the pure water in the second water storage chamber 222 is extruded and discharged for the user to take. The above process, while triggering multiple devices, is understood to be completed in a very brief period of time. The amount of water discharged by the intake 102 during this time period is almost negligible. The water getting and water getting stopping processes after the process are the same as those described above, and are not described again.

Therefore, the position of the first high-voltage switch 510 has multiple choices, the flexibility is high, the water purifier can be suitable for water purifiers with different water routes, and the application range is expanded.

The water purifier with the structure can utilize the water storage solenoid valve 210 to control the first section of water with higher TDS to discharge pure water prepared in advance in the water storage device 220 for the user to take, and after the first section of water is taken, under the combined action of the first high-pressure switch 510, the water storage solenoid valve 210 and the first resistance valve 410, the waterway can be automatically switched, so that the user can take pure water newly prepared by the reverse osmosis filter element 110. After the user stops taking water, the water path is switched by the operation of the first resistance valve 410 and the valve 420, and pure water is filled in the water storage device 220 for the user to take next time. Compared with the prior art, the water path control logic of the water purifier is simple, and only the basic devices, the first resistance valve 410, the valve 420 and the first high-pressure switch 510 of the existing water purifier are involved. And the product specifications of the resistance valve and the high-pressure switch are complete, the model selection is convenient, and the price is low. The valve 420 can also be replaced by a resistance valve, which is beneficial to reducing the cost of the water purifier.

In the above embodiment, the second on pressure value P2 of the valve 420, the first off pressure value P1' of the first high pressure switch 51, and the first on pressure value P1 of the first resistance valve 410 may be sequentially decreased. The above embodiments have been described in detail and are not repeated herein. Therefore, the water flow direction of the water flow and the on-off state of each device on the water path can be more definite in the water production and storage processes of the water purifier.

Illustratively, the second reservoir chamber 222 communicates to the main water line 100 downstream of the first resistance valve 410. Thus, the water flow can not enter the second reservoir chamber 222 until it passes through the first resistance valve 410. Thus, when a user directly accesses pure water generated by the reverse osmosis filter element 110, the water flow is prevented from being pressed into the second water storage cavity 222 due to the first resistance valve 410, so that the user cannot easily access the water.

Illustratively, the water purifier may further include a controller (not shown) that may be electrically connected to the first high-pressure switch 510 and the water storage solenoid valve 210. The first high-pressure switch 510 and the water storage solenoid valve 210 are controlled by the controller, and the water storage solenoid valve 210 is controlled to be turned off after the first high-pressure switch 510 is turned off. The controller may be implemented with a Micro Control Unit (MCU). The controller is used for controlling each execution component in the water purifier, so that the control operation is more reliable and accurate.

In addition to the controller, other existing technologies may be used to control the operation of the water purifier, for example, the operation may be completed by a relay, or the high-voltage switch may be directly connected to the water storage solenoid valve 210 to perform a single-action control.

In the above-described embodiment, when the water pressure in the pipe in which the first high pressure switch 510 is located drops, the first high pressure switch 510 is closed. The controller may control the water storage solenoid valve 210 to be turned on after receiving the closing electric signal sent by the first high voltage switch 510. The water getting flow and the flow after stopping the water getting are the same as the above, and are not repeated.

Therefore, the controller may control the water storage solenoid valve 210 not only to be turned off but also to be turned on according to the electric signal from the first high voltage switch 510. Therefore, the water storage electromagnetic valve 210 can be controlled by a single device, control errors are avoided, and the stability of the water purifier is improved.

As previously mentioned, a second high pressure switch 520 may also be provided between the first resistance valve 410 and the intake 102. The second high voltage switch 520 is electrically connected to the controller. Also, a second high pressure switch 520 may be associated with the water storage solenoid valve 210 to control the water storage solenoid valve 210 according to an electrical signal from the second high pressure switch 520. When the outlet device is opened, the second high-pressure switch 520 is closed immediately according to the pressure reduction of the water intake 102, and sends out a closing electric signal. The controller receives the closing electric signal from the second high-voltage switch 520 and then controls the water storage solenoid valve 210 to be conducted. Therefore, the delay time of pressure conduction can be reduced, the sensitivity of the water purifier is improved, and the water quality of a user is ensured.

Illustratively, a booster pump 120 is further disposed on the main water line 100 upstream of the reverse osmosis filter element 110, and a second end 302 of the drain line 300 is connected to a water inlet of the booster pump 120. Stopping the water intaking at the user, the purifier begins to hold the water in-process to second water storage chamber 222, and the hydroenergy that has higher TDS in the first water storage chamber 221 can be through the water inlet that water discharge line 300 flows back to booster pump 120 to it filters once more to get into reverse osmosis filter core 110, and the pure water of production is held in second water storage chamber 222, makes the first segment water cycle who has higher TDS use, has avoided the waste to the water resource.

In another embodiment, the second end 302 of the water discharge pipe 300 may not be connected to the water inlet of the booster pump 120, but directly discharge the water purifier, thereby reducing the water connection inside the water purifier.

Illustratively, the water storage pipeline 200 is further provided with a check valve 230 upstream of the water storage device 220, and the communication direction of the check valve 230 is the direction from the pure water port 111 to the water storage device 220. In the field of water purifiers, in order to improve the stopping capacity of the electromagnetic valve in a stopping state and prevent water leakage, when the electromagnetic valve is switched on, a water path can flow in two directions; in the off state, the water is not bidirectionally turned off but is in a unidirectional on state, but the on direction is opposite to the normal water flow direction. In order to prevent the water in the first water storage chamber 221 from flowing back to the main water pipe 100 through the water storage solenoid valve 210 when the water storage solenoid valve 210 is turned off, a check valve 230 is provided on the pipe from the first water storage chamber 221 to the main water pipe 100. Although the check valve 230 is shown as two separate valves from the water storage solenoid valve 210 in fig. 1 and 2, the check valve 230 may be a combination valve integrated with the water storage solenoid valve 210. The check valve 230 effectively prevents the water in the first water storage chamber 221 from flowing back to the main water pipeline 100 through the water storage solenoid valve 210, and ensures the water quality of the user.

Alternatively, the water storage solenoid valve 210 having a bidirectional shut-off capability may be employed, and thus, the provision of the check valve 230 may be omitted.

Illustratively, the water purifier further comprises a concentrate solenoid valve 600, and the concentrate solenoid valve 600 is communicated with the concentrate port 112 of the reverse osmosis filter element 110. The concentrated water solenoid valve 600 has a turn-on and turn-off state, and in the standby process of the water purifier, the concentrated water solenoid valve 600 is in the turn-off state, so that the concentrated water outlet of the reverse osmosis filter element 110 is prevented from being communicated with the outside, and the long flow of wastewater is prevented. When purifier system water, wash reverse osmosis filter core 110, dense water solenoid valve 600 will switch on, like this, can utilize the rivers of big flux to wash reverse osmosis filter core 110, has improved reverse osmosis filter core 110's filter effect, has also prolonged reverse osmosis filter core 110's life.

Fig. 3 shows a schematic view of a resistance valve according to an embodiment of the invention. As previously described, the valve 420 may also be a resistance valve in addition to the first resistance valve 410. As shown in fig. 3, the resistance valve includes a valve housing 401 and a valve spool 402, the valve spool 402 being disposed within the valve housing 401, the valve spool 402 including a sealing member 403 and a return member 404, the sealing member 403 having a first position and a second position within the valve housing 401; when the sealing member 403 is at the first position, the sealing member 403 seals off the water inlet of the resistance valve, so that the resistance valve is in a stop state; when the seal 403 is in the second position, the seal 403 is spaced from the inlet of the resistance valve, placing the resistance valve in a conductive state. And a force exists between the restoring member 404 and the sealing member 403 to move the sealing member 403 to the first position.

The resistance valve is in a conducting state only when the pressure of the water inlet is larger than the acting force of the resetting piece 404 pushing the sealing piece 403. The resistance valve can be considered to be a one-way valve having a cracking pressure value that is related to the force with which the return member 404 pushes against the seal 403. If the urging force of the returning member 404 in the off state against the seal 403 is F, the on pressure value of the resistance valve should satisfy the relationship of P and F.

Further, the restoring member 404 may include a spring portion. The resistance valve with the spring part is simple in structure and easy to realize.

Moreover, the resistance valve can be replaced by a one-way valve with an opening pressure value in the prior art, the product is complete in model and rich in variety in market, the selectivity is high, and the product cost can be reduced.

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 purification machine comprising a main water line (100) communicating a water inlet (101) and a water intake (102) of said water purification machine, a reverse osmosis cartridge (110) being provided on said main water line, characterized in that:

a first resistance valve (410) is further arranged between the reverse osmosis filter element and the water intake on the main water pipeline;

the water purifier further comprises:

water storage pipeline (200), water storage pipeline with main water pipeline is in pure water mouth (111) of reverse osmosis filter core with parallelly connected between the water intaking mouth, water storage pipeline is provided with water storage solenoid valve (210) and water storage device (220) on the way, water storage device includes: a first water storage cavity (221) and a second water storage cavity (222), wherein the first water storage cavity is communicated to the pure water port through the water storage solenoid valve, the second water storage cavity is communicated to the water intake port, the respective volumes of the first water storage cavity and the second water storage cavity can be changed according to the water pressure in the cavities, the total volume of the first water storage cavity and the total volume of the second water storage cavity is unchanged, and the water storage solenoid valve is arranged between the first water storage cavity and the pure water port;

a first end (301) of the drainage pipeline is communicated to the first water storage cavity, and a valve (420) is arranged on the drainage pipeline;

a first high pressure switch (510) disposed between the pure water port and the first water storage chamber or between the pure water port and the first resistance valve.

2. The water purification machine according to claim 1, wherein a booster pump (120) is further arranged on the main water line (100) upstream of the reverse osmosis filter element (110), and the second end (302) of the drain line (300) is connected to a water inlet of the booster pump.

3. The water purifier according to claim 1, further comprising a controller electrically connected to the first high-voltage switch (510) and the water storage solenoid valve (210), wherein the controller controls the water storage solenoid valve to be turned off after receiving an electrical signal for turning off the first high-voltage switch.

4. The water purifier according to claim 3, wherein the controller controls the water storage solenoid valve (210) to conduct after receiving the closing electric signal of the first high-voltage switch (510).

5. Water purifier according to claim 3, wherein a second high pressure switch (520) is further arranged on the main water line (100) between the first resistance valve (410) and the water intake (102),

the controller is also electrically connected with the second high-voltage switch, and controls the water storage electromagnetic valve (210) to be conducted after receiving a closing electric signal of the second high-voltage switch.

6. The water purifier according to any one of claims 1 to 5, wherein the first high pressure switch (510) is arranged between the water storage solenoid valve (210) and the first water storage chamber (221).

7. Water purifier according to claim 6, wherein the valve (420) is a resistance valve, the second break pressure value P2 of the valve (420) being greater than both the first break pressure value P1' of the first high pressure switch (510) and the first break pressure value P1 of the first resistance valve (410).

8. Water purifier according to any one of claims 1 to 5, wherein the valve (420) is a resistance valve, the second value of the pressure at break P2 of the valve (420), the first value of the pressure at break P1' of the first high pressure switch (510) and the first value of the pressure at break P1 of the first resistance valve (410) decreasing in sequence.

9. The water purifier according to any one of claims 1 to 5, wherein a check valve (230) is further disposed on the water storage pipeline (200) upstream of the water storage device (220), and the communication direction of the check valve is the direction from the purified water port (111) to the water storage device.

10. A water purification machine according to any one of claims 1 to 5, wherein said second water storage chamber (222) is connected to said main water line (100) downstream of said first resistance valve (410).

11. Water purifier according to any one of claims 1-5, wherein the first resistance valve (410) and/or the valve (420) comprises a valve housing (401) and a valve core (402) arranged in the valve housing, the valve core comprising a sealing element (403) and a return element (404), the sealing element having a first position and a second position; when the sealing member is at the first position, the sealing member seals off the water inlet of the first resistance valve and/or the valve, and the resistance valve is closed; when the sealing member is at the second position, the sealing member is spaced from the first resistance valve and/or the water inlet of the valve, the resistance valve is conducted, and a force capable of moving the sealing member to the first position exists between the resetting member and the sealing member.

12. The water purification machine according to claim 11, wherein said return element (404) comprises a spring portion.