Water purifier

Abstract

The water purifier comprises a water tank and a liquid level sensor, a water box is arranged outside the water tank, a water inlet and a water outlet which are communicated with the inside of the water box are formed in the water box, a water inlet pipe is connected to the water inlet, a water inlet electromagnetic valve is installed on the water inlet pipe in series, and the water outlet of the water box is in fluid communication with the water inlet of the water tank. A water wheel is rotatably arranged in the water box and can rotate under the driving of water flow; a rotating speed sensor used for detecting the rotating speed of the water wheel is arranged on the water wheel, the rotating speed sensor and the liquid level sensor are both electrically connected with the input end of the controller, and the output end of the controller is electrically connected with the water inlet electromagnetic valve. And after the controller sends a signal for controlling the closing of the water inlet electromagnetic valve, the signal transmitted to the controller by the rotating speed sensor still shows that the water wheel rotates, which indicates that the water inlet electromagnetic valve leaks water and needs to be maintained by a user, otherwise, the water tank leaks water.

Description

Technical Field

[0001] The utility model relates to a water purifier. Background Art

[0002] Water purifiers, also known as water purifiers and water purifiers, are water treatment equipment that deeply filters and purifies water according to the requirements for water use. The core technology is the filter membrane in the filter element device. Currently, the main technologies come from ultrafiltration membranes and RO reverse osmosis membranes. Water purifiers can effectively filter out rust, sand, and colloids in water, as well as absorb residual chlorine, odor, discoloration, pesticides and other chemical agents in water, and can effectively remove bacteria, germs, toxins, heavy metals and other impurities in water.

[0003] For example, the Chinese utility model patent with patent number CN201710940090.6 (publication number CN107540111A) discloses a desktop reverse osmosis water purifier system, which includes: an electric three-way valve, a pre-filter, a water inlet solenoid valve, a booster pump, a composite filter and an RO membrane filter connected in sequence through pipes. The pure water end of the RO membrane filter is divided into two water pipelines. The first water pipeline is connected to the water inlet of the 1# water supply pump and the bottom of the water storage tank in sequence, and the second water pipeline is connected to the water inlet of the 2# water supply pump. The 1# water supply pump is connected to the 2# water supply pump, and a faucet is installed between the two. The water storage tank is installed with a float level switch. The outlet waterway of the 2# water supply pump is divided into two routes, the first route is used to output normal temperature water, and the other route is used to output hot water.

[0004] Although this patent is provided with a float level switch to detect the water level in the water tank to prevent the water purifier from leaking, when the water inlet solenoid valve leaks, if this situation cannot be detected, the water purifier will still leak. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a water purifier capable of detecting whether a water inlet solenoid valve is leaking, in view of the current status of the prior art.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a water purifier, comprising a water tank and a liquid level sensor for detecting the liquid level in the water tank, the water tank having a water inlet and a water outlet, characterized in that a water box is arranged outside the water tank, the water box is provided with a water inlet and a water outlet connected with the interior thereof, the water inlet is connected with a water inlet pipe, a water inlet solenoid valve is serially mounted on the water inlet pipe, the water outlet of the water box is in phase fluid communication with the water inlet of the water tank, a water wheel is rotatably arranged in the water box, the water wheel is located on the path of water flow from the water inlet to the water outlet, so that the water wheel can rotate under the drive of the water flow;

[0007] The water purifier also includes a controller. The water wheel is provided with a speed sensor for detecting its speed. The speed sensor and the liquid level sensor are both electrically connected to the input end of the controller. The output end of the controller is electrically connected to the water inlet solenoid valve.

[0008] Preferably, the water purifier further comprises a water wheel generator, the water wheel is a water wheel of a water wheel generator, the generator of the water wheel generator is arranged outside the water box and connected to the water wheel, the generator is electrically connected to a battery, and the battery is used to be electrically connected to the electrical components of the water purifier. In this way, the water wheel can not only be used to detect whether the water inlet solenoid valve is leaking, but also generate electricity, which is a dual purpose.

[0009] Preferably, the electrical component comprises an ultraviolet lamp arranged inside the water tank. The ultraviolet lamp plays a role of sterilization to prevent the growth of microorganisms in the water tank.

[0010] The liquid level sensor can have a variety of structural forms. In the above scheme, a through hole is provided on the bottom plate of the water tank, and the liquid level sensor is a weighing sensor arranged below the through hole, and the upper surface of the weighing sensor faces the through hole. The weighing sensor is a conversion device used to convert a weight signal or a pressure signal into an electrical quantity signal. The weighing sensor uses a metal resistance strain gauge to form a measuring bridge circuit, and is made by using the principle that the metal resistance wire elongates and becomes thinner under the action of tension, and the resistance increases, that is, the effect that the metal resistance changes with the strain it is subjected to. Therefore, the weight of the clean water in the water tank can be measured to detect the content of the clean water in the water tank, and the liquid level can be determined by calculation. The weighing sensor can adopt the existing structure; in addition, the weighing sensor can also be used to determine whether the water inlet solenoid valve is damaged. If the weight detected by the weighing sensor is getting larger and larger when the controller has controlled the water inlet solenoid valve to be closed, it means that the water inlet solenoid valve is faulty and the water tank may leak, further improving the reliability of judging the leakage of the water inlet solenoid valve.

[0011] Preferably, the bottom plate is provided with a receiving cavity below the through hole, the receiving cavity is connected with the through hole, the weighing sensor is arranged in the receiving cavity, and a sealing plate covering the weighing sensor and closing the through hole is also provided in the receiving cavity. The function of the sealing plate is to prevent water from flowing onto the weighing sensor and damaging the weighing sensor.

[0012] In order to further improve the sealing reliability of the sealing plate, a first sealing ring is provided around the outer periphery of the through hole between the sealing plate and the top wall of the accommodating cavity, and a second sealing ring is provided between the sealing plate and the top wall of the weighing sensor.

[0013] In order to facilitate the placement of the sealing plate and the weighing sensor in the accommodating cavity, the bottom of the accommodating cavity is open, and a cover plate capable of closing the bottom opening is provided at the bottom opening of the accommodating cavity. In this way, the sealing plate and the weighing sensor can be placed in the accommodating cavity first, and then the cover plate is covered.

[0014] In order to facilitate the water in the water tank to flow to the through hole and improve the working reliability of the weighing sensor, the bottom plate of the water tank includes a flat plate and a conical plate extending from the bottom to the top around the flat plate, and the conical plate gradually expands from the bottom to the top. The through hole is arranged on the flat plate, so that the water flow will move along the conical plate toward the flat plate under the action of gravity to flow into the through hole.

[0015] Preferably, the drain outlet of the water tank is arranged on the flat plate, and the drain outlet is located beside the through hole, so as to facilitate the discharge of water in the water tank.

[0016] In the above scheme, the water tank includes a box body with an open top and a top cover covering the top opening of the box body. The top cover of the water tank is provided with a water inlet, and the bottom plate of the box body is provided with a drain outlet.

[0017] Compared with the prior art, the utility model has the following advantages: the utility model sets a liquid level sensor and a water wheel, the speed sensor and the liquid level sensor on the water wheel are electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the water inlet solenoid valve. When the liquid level sensor detects that the liquid level in the water tank reaches the set value and the controller sends a signal to control the water inlet solenoid valve to close, the signal transmitted to the controller by the speed sensor still shows that the water wheel is rotating. At this time, it means that the water inlet solenoid valve is leaking and needs to be repaired by the user, otherwise the water tank will leak. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the local structure;

[0020] Figure 3 for Figure 2 An exploded schematic diagram of a hydro-generator in FIG.

[0021] Figure 4 for Figure 1 A partial cross-sectional view of

[0022] Figure 5 for Figure 4 A magnified image of point A;

[0023] Figure 6 This is a control principle diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0025] like Figures 1 to 6As shown, the water purifier of this preferred embodiment includes a water tank 1, a liquid level sensor, a water box 2, a water inlet solenoid valve (not shown in the figure), a controller, a speed sensor (not shown in the figure), and a hydro-turbine generator 3. The water inlet solenoid valve, the controller, the speed sensor, and the hydro-turbine generator 3 can all adopt existing structures.

[0026] The water tank 1 has a water inlet 11 and a drain outlet 12, and a drain pipe 13 is connected to the drain outlet 12. The liquid level sensor is used to detect the liquid level in the water tank 1. A water box 2 is provided outside the water tank 1, and the water box 2 is provided with a water inlet and a water outlet connected to the inside thereof. The water inlet is connected to a water inlet pipe 23, and a water inlet solenoid valve is serially installed on the water inlet pipe 23. The water outlet is in fluid communication with the water inlet 11 of the water tank 1 through the water outlet pipe 22. The water wheel 31 of the hydro-generator 3 is rotatably provided in the water box 2, and the water wheel 31 is located on the path of water flow from the water inlet to the water outlet, so that the water wheel 31 can rotate under the drive of the water flow.

[0027] The water wheel 31 is provided with a speed sensor for detecting its speed. The speed sensor and the liquid level sensor are both electrically connected to the input end of the controller. The output end of the controller is electrically connected to the water inlet solenoid valve. The electrical connection method between the aforementioned components adopts the existing technology and is not repeated here. When the liquid level sensor detects that the liquid level in the water tank 1 reaches the set value, and the controller sends a signal to control the water inlet solenoid valve to close, the signal transmitted by the speed sensor to the controller still shows that the water wheel 31 is rotating. At this time, it means that the water inlet solenoid valve is leaking and needs to be repaired by the user, otherwise it will cause the water tank 1 to leak. For the control principle, see Figure 6 .

[0028] The generator 32 of the water wheel generator 3 is arranged outside the water box 2 and connected to the water wheel 31. The generator 32 is electrically connected to the battery, and the battery is electrically connected to the electrical components of the water purifier. In this way, the water wheel 31 can not only be used to detect whether the water inlet solenoid valve is leaking, but also generate electricity, which is a dual purpose.

[0029] In this embodiment, the electrical components include an ultraviolet lamp 4 disposed inside the water tank 1. The ultraviolet lamp 4 has a sterilizing effect to prevent the growth of microorganisms in the water tank 1. The ultraviolet lamp 4 can be an LED ultraviolet lamp.

[0030] A through hole 14 is provided on the bottom plate 16 of the water tank 1. The liquid level sensor is a weighing sensor 5 provided below the through hole 14, and the upper surface of the weighing sensor 5 faces the through hole 14. The weighing sensor 5 is a conversion device used to convert a weight signal or a pressure signal into an electrical quantity signal. The weighing sensor 5 can adopt an existing structure. In addition, the weighing sensor 5 can also be used to determine whether the water inlet solenoid valve is damaged. If the weight detected by the weighing sensor 5 increases when the controller has controlled the water inlet solenoid valve to be closed, it means that the water inlet solenoid valve is faulty and the water tank 1 may leak water, which further improves the reliability of determining the leakage of the water inlet solenoid valve.

[0031] The bottom plate is provided with a receiving cavity 15 located below the through hole 14, the receiving cavity 15 is connected with the through hole 14, the weighing sensor 5 is provided in the receiving cavity 15, and the receiving cavity 15 is also provided with a sealing plate 51 covering the weighing sensor 5 and closing the through hole 14, a first sealing ring 52 surrounding the outer periphery of the through hole 14 is provided between the sealing plate 51 and the top wall of the receiving cavity 15, and a second sealing ring 53 is provided between the sealing plate 51 and the top wall of the weighing sensor 5. The sealing plate 51, the first sealing ring 52, and the second sealing ring 53 play a sealing role to prevent water from flowing onto the weighing sensor 5 and damaging the weighing sensor 5.

[0032] The bottom of the accommodating chamber 15 is open, and a cover plate 6 is provided at the bottom opening of the accommodating chamber 15 to close the bottom opening, and the cover plate 6 is connected to the bottom plate 16 of the water tank 1 through a connecting member (such as a screw). In this way, the sealing plate 51 and the weighing sensor 5 can be placed in the accommodating chamber 15 first, and then the cover plate 6 is covered.

[0033] The bottom plate 16 of the water tank 1 includes a flat plate 161 and a conical plate 162 extending from bottom to top around the flat plate 161. The conical plate 162 gradually expands in diameter from bottom to top. The through hole 14 and the drain port 12 are arranged on the flat plate 161 at intervals, and the drain port 12 is located next to the through hole 14. In this way, under the action of gravity, the water flow will move along the conical plate 162 toward the flat plate 161 to flow into the through hole 14 and the drain port 12.

[0034] The water tank 1 includes a box body 17 with an open top and a top cover 18 covering the top opening of the box body 17 . The top cover 18 of the water tank 1 is provided with a water inlet 11 , the bottom plate 16 of the box body 17 is provided with a drain outlet 12 , and the ultraviolet lamp 4 is also provided on the top cover 18 .

[0035] In addition, the water box 2 includes a box body 24 with an open side and a box cover 25 that can be arranged on the open side of the box body 24 to facilitate installation of the water wheel 31 in the water box 2 .

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0037] The "fluid communication" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A water purifier, comprising a water tank (1) and a liquid level sensor for detecting the liquid level in the water tank (1), wherein the water tank (1) has a water inlet (11) and a water outlet (12), and is characterized in that: A water box (2) is provided outside the water tank (1), and a water inlet and a water outlet are provided on the water box (2) which are connected to the inside of the water tank (1). The water inlet is connected to a water inlet pipe (23), and a water inlet solenoid valve is installed in series on the water inlet pipe (23). The water outlet of the water box (2) is in fluid communication with the water inlet (11) of the water tank (1). A water wheel (31) is rotatably provided in the water box (2), and the water wheel (31) is located on the path of water flowing from the water inlet to the water outlet, so that the water wheel (31) can rotate under the drive of the water flow; The water purifier also includes a controller. The water wheel (31) is provided with a rotation speed sensor for detecting its rotation speed. The rotation speed sensor and the liquid level sensor are both electrically connected to the input end of the controller. The output end of the controller is electrically connected to the water inlet solenoid valve.

2. The water purifier according to claim 1, characterized in that: The water purifier further comprises a water wheel generator (3); the water wheel (31) is a water wheel (31) of the water wheel generator (3); a generator (32) of the water wheel generator (3) is arranged outside the water box (2) and connected to the water wheel (31); the generator (32) is electrically connected to a battery; and the battery is used to be electrically connected to electrical components of the water purifier.

3. The water purifier according to claim 2, characterized in that: The electrical component comprises an ultraviolet lamp (4) arranged inside the water tank (1).

4. The water purifier according to any one of claims 1 to 3, characterized in that: A through hole (14) is provided on the bottom plate (16) of the water tank (1), and the liquid level sensor is a weighing sensor (5) arranged below the through hole (14), with the upper surface of the weighing sensor (5) facing the through hole (14).

5. The water purifier according to claim 4, characterized in that: The bottom plate (16) is provided with a receiving cavity (15) located below the through hole (14); the receiving cavity (15) is communicated with the through hole (14); the weighing sensor (5) is arranged in the receiving cavity (15); and the receiving cavity (15) is also provided with a sealing plate (51) covering the weighing sensor (5) and closing the through hole (14).

6. The water purifier according to claim 5, characterized in that: A first sealing ring (52) is provided between the sealing plate (51) and the top wall of the accommodating cavity (15) and is arranged around the outer periphery of the through hole (14); and a second sealing ring (53) is provided between the sealing plate (51) and the top wall of the weighing sensor (5).

7. The water purifier according to claim 5, characterized in that: The bottom of the accommodating cavity (15) is open, and a cover plate (6) capable of closing the bottom opening is provided at the bottom opening of the accommodating cavity (15).

8. The water purifier according to claim 5, characterized in that: The bottom plate (16) of the water tank (1) comprises a flat plate (161) and a conical plate (162) extending from bottom to top around the flat plate (161); the conical plate (162) gradually expands in diameter from bottom to top; and the through hole (14) is provided on the flat plate (161).

9. The water purifier according to claim 8, characterized in that: The water outlet (12) of the water tank (1) is arranged on the flat plate (161), and the water outlet (12) is located beside the through hole (14).

10. The water purifier according to any one of claims 1 to 3, characterized in that: The water tank (1) comprises a box body (17) with an open top and a top cover (18) arranged on the top open portion of the box body (17); a water inlet (11) is arranged on the top cover (18) of the water tank (1), and a drain outlet (12) is arranged on the bottom plate (16) of the box body (17).

Images