CN212315650U - Water drive device and water purification system with same - Google Patents

Abstract

The utility model provides a water drive device and water purification system who has it. The water drive device comprises a main water pipeline which is communicated with a pure water inlet and a water intake, and a first resistance valve is arranged on the main water pipeline; water storage pipeline, it and main water pipeline connect in parallel between pure water entry and intake, are provided with water storage solenoid valve and water storage device on the water storage pipeline, and water storage device includes: the water dispenser comprises a first water storage cavity and a second water storage cavity, wherein the first water storage cavity is communicated with a pure water inlet 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 inlet; a first end of the drainage pipeline is communicated with the first water storage cavity, a second end of the drainage pipeline is communicated with the water outlet, and a valve is arranged on the drainage pipeline; and a first high-pressure switch disposed between the pure water inlet and the first water storage chamber or between the pure water inlet and the first resistance valve. This water drive device can be external in the purifier, solves the high problem of its first section water TDS.

Description

Water drive device and water purification system with same

Technical Field

The utility model relates to a technical field of aqueous cleaning specifically, relates to a water drive device and water purification system who has it.

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. The normal operation of these water drives depends on other devices and water paths in the water purifier, such as a high-voltage switch in the water purifier. Therefore, it cannot be independent of the water purifier. In other words, these water drive apparatuses cannot be mounted on an existing water purifier. To the old purifier that does not have the water drive device, can't utilize above-mentioned water drive device to solve the high problem of first section water TDS.

SUMMERY OF THE UTILITY MODEL

In order to at least partially solve the problems in the prior art, according to one aspect of the present invention, a water drive device is provided, which comprises a main water pipeline, wherein the main water pipeline is communicated with a pure water inlet and a water intake of the water drive device, and a first resistance valve is arranged on the main water pipeline; water storage pipeline, water storage pipeline and main water pipeline are parallelly connected between pure water entry and 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 inlet through a water storage electromagnetic valve, the second water storage cavity is communicated to a water intake, 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 inlet; a first end of the drainage pipeline is communicated to the first water storage cavity, a second end of the drainage pipeline is communicated to the drainage port, and a valve is arranged on the drainage pipeline; and the first high-voltage switch is arranged between the pure water inlet and the first water storage cavity or between the pure water inlet and the first resistance valve.

The water drive device with the structure can utilize the water storage electromagnetic valve to control the first section of water with higher TDS discharged by the water purifier to discharge pure water prepared in advance in the water storage device for a user to take, and after the first section of water is taken, under the combined action of the first high-voltage switch, the water storage electromagnetic valve and the first resistance valve, the water channel can be automatically switched, so that the user can directly take pure water newly prepared by the water purifier. 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. This water drive device is independent work, can be external in the purifier that does not have built-in water drive device, solves the high problem of first section water TDS of this type of purifier. The user improves the water quality of the used water and reduces the upgrading cost of the equipment on the premise of not replacing the water purifying device and not changing the water path therein. The water drive device has simple control logic and only relates to a first resistance valve, a water storage electromagnetic valve and a first high-pressure switch. And the product specifications of the resistance valve and the high-voltage switch are complete, the type selection is convenient, the price is low, and the cost of the water drive device is favorably reduced. Besides, the water way and the circuit of the water driving device are relatively independent, and the water driving device can be externally connected with other devices with the requirements.

The water drive device further comprises a controller, the controller is electrically connected to the first high-voltage switch and the water storage solenoid valve, and the controller controls the water storage solenoid valve to be turned off after receiving an electric signal for turning off the first high-voltage switch.

The controller is utilized to control each execution component in the water drive device, so that the control operation is more reliable and accurate.

The controller is electrically connected to the first high-voltage switch and the water storage solenoid valve, and the controller controls the water storage solenoid valve to be conducted after receiving a closing electric signal of the first high-voltage switch.

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

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

Therefore, the first high-voltage 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 conducted, 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 parameters of the valve, the first high-pressure switch and the first resistance valve are set according to the above rule, so that the waterway switching action of the water drive device is accurate and error-free, and the valve can automatically open and close the pipeline, thereby simplifying the control logic of the water drive device.

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 flowing direction of water flow in the water driving device and the on-off state of each device on the water path can be more definite in the water making and storing processes.

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 inlet to the water storage device.

In the field of water purification, 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, the water channel can flow in two directions; in the off state, the water flow is not bidirectionally turned off but is in a unidirectional on state, but the on direction is opposite to the 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.

Like this, when the user directly connect the pure water stage of getting the real-time production of purifier, can prevent to make rivers pressed the second water storage chamber because the effect of first resistance valve, make the user be difficult to receive and get 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.

According to another aspect of the utility model, still provide a water purification system, including the purifier, still include any kind of water drive device as above, the pure water export intercommunication water drive device's of purifier pure water entry.

Therefore, the water purification system with the water drive device is connected, and the problem of high TDS of the first stage of water is solved on the basis of not changing the control logic of the water purifier; and the water purifier can be used only by communicating the pure water outlet of the water purifier with the pure water inlet of the water drive device, and the installation is convenient. The problem of old purifier function upgrading is solved.

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 drive according to a first exemplary embodiment of the present invention;

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

fig. 3 is a schematic water circuit diagram of a water purification system including a water drive according to an embodiment of the present invention; and

fig. 4 is a schematic view of a resistance valve according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

100. a main water line; 101. a pure water inlet; 102. a water intake; 103. a water outlet; 104. a pure water outlet; 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.

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 utility model provides a water drive device. This water drive arrangement can be used for external equipment such as purifier to the higher problem of first paragraph water TDS of solving this equipment. The water drive device has a pure water inlet 101 and a water intake 102, and a main water line 100 communicates between the pure water inlet 101 and the water intake 102. Usually, the pure water inlet 101 may be communicated with a pure water outlet of an external device such as a water purifier, and the water intake 102 may be communicated with a water outlet device, where the water outlet device may include a mechanical faucet, an electrically controlled faucet, a pipeline device, and other devices.

In the main water line 100, a first resistance valve 410 is provided. 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 to the main water line 100 in a direction from the pure water inlet 101 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 drive apparatus further includes a water storage line 200. The water storage line 200 is connected between the pure water inlet 101 and the water intake 102, 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 inlet 101, and the second water storage chamber 222 is connected to the water intake 102. The first water storage chamber 221 and the second water storage chamber 222 are not communicated with each other, and the total volume of the first water storage chamber and the second water storage chamber can be changed according to the water pressure in the chambers, and the total volume of the first water storage chamber and the second water storage chamber is not changed. 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 inlet 101.

The water drive apparatus further includes a drain line 300. A first end 301 of the drain line may be connected to the first reservoir chamber 221 and a second end 302 of the drain line may be connected to the drain port 103. 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 drive also has a first high voltage switch 510. The first high pressure switch 510 may be disposed between the pure water inlet 101 and the first water storage chamber 221 or between the pure water inlet 101 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 driving device arranged above, after the user opens the water taking device, the first section of water entering through the pure water inlet 101 is filled into the first water storage cavity 221 of the water storage device 220, and the pure water stored in the second water storage cavity 222 in advance is squeezed out by the first water storage cavity 221 and is taken 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 chamber 222 may be filled with pure water entering the pure water inlet 101 to wait for the next time the user takes water.

The detailed operation of the water drive device will be described in detail below.

Since the water drive device does not have the filtering capability, the pure water inlet 101 of the water drive device is communicated with the pure water outlet of the external equipment, and the water drive device works along with the operation of the external equipment. The following describes the operation process of the water drive device by taking the water drive device communicating with the water purifier as an example. The standby state 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 a standby state, the water drive device is also in a standby working state, and the second water storage cavity 222 of the water storage device 220 is filled with the prepared pure water in advance. 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 inlet 101. 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 purifier is also started up as the pressure of the pure water inlet 101 decreases, and starts to prepare pure water to the pure water inlet 101. 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 situation that a user receives the first section of water with higher TDS prepared by the water purifier is avoided, and the water quality of the water purifier 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 introduced through the pure water inlet 101 is subjected to the resistance of the second water storage chamber 222 of the water storage line 200, the first resistance valve 410 of the main water line 100 and the valve 420 of the drain line 300, and the water pressure of the pure water inlet 101 is continuously increased.

Illustratively, the valve 420 may also be 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 inlet 101 reaches the conducting pressure value P1 of the first resistance valve 410 first, so that the user can smoothly take in the pure water. Without the situation that pure water introduced into the water drive device through the pure water inlet 101 is discharged through the valve 420 as soon as the water in the second water storage chamber 222 is discharged from the first water storage chamber 221.

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 drive device be accurate and error-free, but also the valve 420 can automatically open and close the pipeline, and the control logic of the water drive device is simplified.

Two possible situations in the water drive apparatus after the water pressure at the pure water inlet 101 is continuously increased will be described in detail below.

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 inlet 101 continuously rises to first reach 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 water flowing from the pure water inlet 101 causes the water pressure in the pipeline to rise continuously, 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 prepared by the water purifier in real time, not the water stored in the second water storage chamber 222.

At this time, if the user stops getting water, the water driving device will enter the stage of storing water in the second water storage cavity 222 after the water outlet device is turned off.

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

In the course of the water pressure of the pure water inlet 101 rising, the first conducting pressure value P1 of the first resistance valve 410 will be reached first. The water flowing from the pure water inlet 101 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 the pure water prepared by the water purifier in real time. If the user stops taking water, the water outlet device is turned off, and a closed water path is formed from the pure water inlet 101 to the first water storage chamber 221 and from the pure water inlet 101 to the second water storage chamber 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 flowing in through the pure water inlet 101 will only flow into the main water line 100 and the water drive will enter the stage of storing water 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 into the second water storage cavity 222, the pure water inlet 101 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.

When the pressure in the main water pipeline 100 is increased to a pressure value at which the water purifier connected with the main water pipeline stops working, the water purifier enters a standby state, and the water drive device also enters the standby state. The workflow of the water purifier entering the standby state is the same as the prior art, and is well known by those skilled in the art, and is not described herein for brevity.

Optionally, the water purifier is provided with a second high voltage switch (not shown) for controlling the working state of the water purifier. The second high-pressure switch has a second opening pressure value P2'. When the water pressure in the pipeline where the water pressure is located continuously rises to reach a second cut-off pressure value P2', the second high-pressure switch is switched off, and the water purifier enters a standby state.

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 prepared by the water purifier in real time. The working processes of the water purifier and the water drive device can still refer to the two working flows, and will not be described in detail.

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 inlet 101 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 inlet 101 and the first resistance valve 410 is decreased, and is influenced by the resistance of the first resistance valve 400, and the water pressure between the pure water inlet 101 and the first resistance valve 410 is not higher than the first conduction pressure value P1 at most.

As the water pressure between the pure water inlet 101 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 its first off pressure value P1', the first high pressure switch 510 is closed, so that the water storage solenoid valve 210 will be turned on. Pure water enters the first water storage cavity 221 through the pure water inlet 101, and pure water in the second water storage cavity 222 is extruded and discharged for a 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 drive device with the structure can utilize the water storage solenoid valve 210 to control the first section of water with higher TDS discharged by the water purifier to discharge pure water prepared in advance in the water storage device 220 for a user to take, and after the first section of water is taken, under the combined action of the first high-voltage switch 510, the water storage solenoid valve 210 and the first resistance valve 410, a water path can be automatically switched, so that the user can directly take pure water newly prepared by the water purifier. 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. This water drive device is independent work, can be external in the purifier that does not have built-in water drive device, solves the high problem of first section water TDS of this type of purifier. The user improves the water quality of the used water and reduces the upgrading cost of the equipment on the premise of not replacing the water purifying device and not changing the water path therein. The control logic of the water drive device is simple and only involves the first resistance valve 410, the valve 420, the water storage solenoid valve 210 and the first high-pressure switch 510. And the product specifications of the resistance valve and the high-voltage switch are complete, the type selection is convenient, the price is low, and the cost of the water drive device is favorably reduced. Besides, the water way and the circuit of the water driving device are relatively independent, and the water driving device can be externally connected with other devices with the requirements.

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 flowing direction of water flow in the water driving device and the on-off state of each device on the water path can be more definite in the water making and storing processes.

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 the user directly accesses the pure water generated by the water purifier in real time, the water flow can be prevented from being pressed into the second water storage cavity 222 due to the action of the first resistance valve 410, so that the user is difficult to access the water.

Illustratively, the water drive apparatus may further include a controller (not shown) that may electrically connect 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 utilized to control each execution component in the water drive device, so that the control operation is more reliable and accurate.

In addition to the controller, the operation of the water drive apparatus may be controlled by using other conventional techniques, for example, by a relay, or by directly connecting a high-voltage switch to the water storage solenoid valve 210 to perform a single operation.

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 drive device is improved.

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 inlet 101 to the water storage device 220. In the field of water purification, 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, the water channel can flow in two directions; in the off state, the water flow is not bidirectionally turned off but is in a unidirectional on state, but the on direction is opposite to the 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.

Fig. 4 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. 4, 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.

According to the utility model discloses another aspect still provides a water purification system. As shown in fig. 3, the water purification system comprises a water purifier and any one of the water drive devices described above. The water purifier comprises a pure water outlet 104, and the pure water outlet 104 is communicated with a pure water inlet 101 of the water drive device.

Optionally, the water purifier further comprises a second high-pressure switch (not shown), which may be disposed at the pure water outlet 104 or on a water path in communication with the pure water outlet 104, for controlling the start and stop of the water purifier.

Thus, the water purifier with the second high-voltage switch can control the water purifier according to the pressure value of the main water pipeline 100 of the water drive device. When the pressure value of the main water pipeline 100 is reduced to the second high-pressure switch, the water purifier starts to work, and pure water is prepared to the pure water outlet 104; when the pressure value of the main water pipeline 100 is increased to the point that the second high-voltage switch is turned off, the water purifier stops producing water and enters a standby state.

Therefore, the water purification system with the water drive device is connected, and the problem of high TDS of the first stage of water is solved on the basis of not changing the control logic of the water purifier; and the water purifier can be used only by communicating the pure water outlet 104 of the water purifier with the pure water inlet 101 of the water drive device, and the installation is convenient. The problem of old purifier function upgrading is solved.

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 (11)

1. A water drive device, characterized by comprising a main water pipeline (100) which is communicated with a pure water inlet (101) and a water intake (102) of the water drive device, wherein a first resistance valve (410) is arranged on the main water pipeline;

water storage pipeline (200), water storage pipeline with main water pipeline is in the pure water entry with parallelly connected between the intake, be provided with water storage solenoid valve (210) and water storage device (220) on the water storage pipeline, water storage device includes: the first water storage cavity (221) is communicated to the pure water inlet through the water storage electromagnetic valve, the second water storage cavity is communicated to the water intake, the respective volumes of the first water storage cavity and the second water storage cavity can be changed according to water pressure in the cavities, the total volume of the first water storage cavity and the second water storage cavity is unchanged, and the water storage electromagnetic valve is arranged between the first water storage cavity and the pure water inlet;

a first end (301) of the drainage pipeline is communicated with the first water storage cavity, a second end (302) of the drainage pipeline is communicated with a drainage port, and a valve (420) is arranged on the drainage pipeline;

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

2. The water drive as recited in claim 1, further comprising a controller electrically connected to said first high voltage switch (510) and said water storage solenoid valve (210), said controller controlling said water storage solenoid valve to be turned off upon receiving an electrical signal for turning off said first high voltage switch.

3. The water drive as recited in claim 1, further comprising a controller electrically connected to said first high-pressure switch (510) and said water storage solenoid valve (210), said controller controlling said water storage solenoid valve to conduct upon receiving said first high-pressure switch closing electrical signal.

4. A water drive as claimed in any one of claims 1-3, wherein said first high pressure switch (510) is arranged between said water storage solenoid valve (210) and said first water storage chamber (221).

5. A water drive as claimed in claim 4, characterized in that the valve (420) is a resistance valve, the second value of the on-pressure P2 of the valve (420) being greater than both the first value of the off-pressure P1' of the first high pressure switch (510) and the first value of the on-pressure P1 of the first resistance valve (410).

6. A water drive as claimed in claim 4, wherein said valve (420) is a resistance valve, and wherein the second value of the on-pressure P2 of said valve (420), the first value of the off-pressure P1' of the first high pressure switch (510) and the first value of the on-pressure P1 of the first resistance valve (410) decrease in sequence.

7. A water drive as claimed in any one of claims 1 to 3, wherein a non-return valve (230) is provided in said storage line (200) upstream of said storage means (220), said non-return valve being in communication in the direction from said pure water inlet (101) to said storage means.

8. A water drive as claimed in any one of claims 1 to 3, wherein said second water storage chamber (222) communicates with said main water line (100) downstream of said first resistance valve (410).

9. A water drive arrangement as claimed in any one of claims 1-3, wherein said first resistance valve (410) and/or said valve (420) comprises a valve housing (401) and a valve spool (402), said valve spool being arranged in said valve housing, said valve spool comprising a sealing member (403) and a return member (404), said sealing member 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.

10. A water drive unit as defined in claim 9, wherein said return member (404) comprises a spring portion.

11. A water purification system comprising a water purifier, characterized in that it further comprises a water drive according to any one of claims 1-10, wherein the pure water outlet (104) of the water purifier is connected to the pure water inlet (101) of the water drive.

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