Wastewater recovery device for pure water preparation

Abstract

The utility model relates to the technical field of wastewater recovery, in particular to a wastewater recovery device for pure water preparation, which comprises a pressure tank and a water storage tank, and is characterized in that the top of the water storage tank is fixedly connected with a water inlet pipe and an exhaust pipe, the top of one side of the water storage tank is fixedly connected with a drainage pipe, and a submersible pump is arranged in the water storage tank. The output end of the submersible pump is fixedly connected with a conveying pipe, the end, away from the submersible pump, of the conveying pipe is fixedly connected with a water inlet of the pressure tank, and a one-way valve is arranged on the conveying pipe. The device has the advantages that by arranging the pressure switch, when the pressure in the pressure tank is smaller than the lower limit of the pressure switch, the submersible pump is started to convey a water source into the pressure tank, when the pressure in the pressure tank reaches the upper limit of the pressure switch, the pressure switch is switched off, the submersible pump stops conveying water, and when the water storage tank is full of water, the water is discharged into a sewer through the drainage pipe. Therefore, the system is simple in overall structure and principle and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater recovery, in particular to a pure water preparation wastewater recovery device. Background Art

[0002] During the water purification process, the water purifier will discharge a large amount of wastewater through the wastewater pipe. This wastewater contains partially purified tap water, which is suitable for daily purposes such as watering flowers, washing vegetables, mopping the floor, washing clothes and flushing toilets. Therefore, by collecting and reusing this wastewater, water resources can be effectively saved.

[0003] A wastewater recovery device for a water purifier disclosed in Chinese patent CN218879485U is connected to the wastewater pipe of the water purifier to collect wastewater generated during the water purification process of the water purifier, thereby preventing the wastewater from being directly discharged into the sewer pipe and outputting it to the outside, thereby achieving the effect of recycling the wastewater. However, while solving the problem, the wastewater recovery device for a water purifier has the following defects:

[0004] The controller needs to receive information from the first water immersion sensor, the second water immersion sensor and the pressure sensor, and then control the start and stop of the water pump and the conversion of the three-way solenoid valve. The overall structure and principle are relatively complex. Utility Model Content

[0005] The purpose of the present invention is to at least solve one of the technical defects described in the background technology.

[0006] To this end, one purpose of the present invention is to propose a pure water preparation wastewater recovery device, aiming to solve the problem that the overall structure and principle of the wastewater recovery device for pure water machines in the prior art are relatively complex.

[0007] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the present invention provides a pure water preparation wastewater recovery device, including a pressure tank and a water tank, the top of the water tank is fixedly connected with a water inlet pipe and an exhaust pipe, the top of one side of the water tank is fixedly connected with a drain pipe, a submersible pump is arranged inside the water tank, the output end of the submersible pump is fixedly connected with a delivery pipe, the end of the delivery pipe away from the submersible pump is fixedly connected to the water inlet of the pressure tank, and a one-way valve is arranged on the delivery pipe, a water outlet pipe is arranged at the bottom of one side of the pressure tank, a pressure switch is fixedly installed on the surface of the pressure tank, and the pressure switch is connected in series in the circuit of the submersible pump.

[0008] The beneficial effect is: by setting a pressure switch, when the pressure in the pressure tank is lower than the lower limit of the pressure switch, the submersible pump starts to transport water into the pressure tank. When the pressure in the pressure tank reaches the upper limit of the pressure switch, the pressure switch is disconnected and the submersible pump stops supplying water. When the water tank is full of water, the water is discharged into the sewer through the drain pipe. No other electronic equipment is required for control, so the overall structure and principle are simple and easy to use.

[0009] Preferably, from any of the above solutions, the exhaust pipe is in an inverted J-shape, with its outlet facing downward.

[0010] The beneficial effect is that the outlet of the exhaust pipe faces downward, which can prevent debris from falling into the water tank through the exhaust pipe.

[0011] Preferably, any of the above schemes is that the bottom of the water tank is fixedly connected to a closing opening, the bottom of the closing opening is fixedly connected to a sink, and the submersible pump is located in the sink.

[0012] The beneficial effect is that when the amount of water in the water tank is small, the water can be gathered in the closing mouth and the sump, thereby ensuring that when the amount of water is small, the submersible pump can still ensure sufficient water absorption, thereby ensuring the normal operation of the submersible pump.

[0013] Preferably, one side wall of the trough is rotatably connected to a rotating shaft, one end of the rotating shaft is fixedly connected to a rocker, the end of the rocker is fixedly connected to a buoyancy ball, the end of the rotating shaft away from the rocker is fixedly connected to a pressure rod, one side of the trough is fixedly connected to a support, a button switch is fixedly installed on the top of the support, and the button switch is connected in series with the pressure switch.

[0014] The beneficial effect is: when the water in the water storage tank drops into the sink, the buoyancy ball sinks, and the pressure rod will rotate and press the button switch, causing the button switch to disconnect the circuit. At this time, even if the pressure in the pressure tank is too low, the submersible pump will not start, thus avoiding the problem of heat damage caused by the submersible pump working in a waterless state.

[0015] Preferably, a limiting plate is fixedly connected to one side of the trough.

[0016] The beneficial effect is: when there is sufficient water in the water tank, after the buoyancy ball floats to a certain height, the pressure rod is restricted by the limit plate, so that the buoyancy ball cannot continue to rise, thereby avoiding the problem that the rocker is vertical, resulting in the buoyancy ball not rotating in the specified direction after the water level drops, causing the pressure rod to be unable to press the button switch, thereby improving the reliability of the structure.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 It is a schematic cross-sectional view of the water storage tank of the utility model.

[0021] Figure 3 This is a schematic cross-sectional structural diagram of the water storage tank in Example 3 of the present utility model.

[0022] Among them: 1. Pressure tank, 11. Outlet pipe, 12. Pressure switch, 13. Sewage pipe, 2. Water storage tank, 21. Inlet pipe, 22. Exhaust pipe, 23. Drain pipe, 24. Closure, 25. Sink, 3. Submersible pump, 31. Delivery pipe, 32. One-way valve, 4. Rotating shaft, 41. Rocker, 42. Buoyancy ball, 43. Pressure rod, 44. Support, 45. Push button switch, 46. Limit plate. DETAILED DESCRIPTION

[0023] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] The utility model provides a pure water preparation wastewater recovery device.

[0026] Example 1:

[0027] like Figure 1-2As shown, it includes a pressure tank 1 and a water tank 2. The top of the water tank 1 is fixedly connected with a water inlet pipe 21 and an exhaust pipe 22. The water inlet pipe 21 is connected to the wastewater discharge pipe of the water purifier. The wastewater discharged by the water purifier can enter the water tank 2 through the water inlet pipe 21 for collection. After the wastewater enters the water tank 2, the air in the water tank 2 can be discharged through the exhaust pipe 22, avoiding the problem that the pressure in the water tank 2 is too high and the wastewater cannot enter. The top of one side of the water tank 1 is fixedly connected with a drain pipe 23, and the drain pipe 23 is connected to the sewer. When there is too much wastewater in the water tank 2, the excess wastewater will be discharged into the sewer through the drain pipe 23, and a check valve can be set on the drain pipe 23 to prevent the odor in the sewer from entering the water tank 2. A submersible pump 3 is provided inside the water tank 2, and the output end of the submersible pump 3 is fixedly connected to the delivery pipe 31. The end of the delivery pipe 31 away from the submersible pump 3 is connected to the The water inlet of the pressure tank 1 is fixedly connected, and a one-way valve 32 is provided on the delivery pipe 31. The submersible pump 3 can deliver water to the pressure tank 1 through the delivery pipe 31, and the one-way valve 32 prevents water from flowing back. A water outlet pipe 11 is provided at the bottom of one side of the pressure tank 1. The water outlet pipe 11 is used to connect the pipelines of the bathroom or the pipelines in the green belt and other locations, and is used to deliver water to the bathroom or the green belt and other locations, thereby achieving the purpose of wastewater reuse. A pressure switch 12 is fixedly installed on the surface of the pressure tank 1. The pressure switch 12 is connected in series with the submersible pump 3. The pressure switch 12 is used to monitor the pressure in the pressure tank 1, and the pressure range can be set. When the pressure in the pressure tank 1 reaches the lower limit, the submersible pump 3 can be started to deliver water to the pressure tank 1, thereby increasing the pressure in the pressure tank 1. When the pressure in the pressure tank 1 reaches the upper limit, the submersible pump 3 stops delivering water, thereby achieving the purpose of instant water replenishment.

[0028] Specifically, a drain pipe 13 is provided at the bottom of the pressure tank 1. A valve is provided on the drain pipe 13. The valve can be opened regularly to quickly discharge the water in the pressure tank 1, thereby flushing out the stains deposited at the bottom of the pressure tank 1 and achieving the purpose of draining.

[0029] Preferably, Figure 1 As shown, the exhaust pipe 22 is in an inverted J shape, with its outlet facing downward, which can prevent debris from falling into the water tank 2 through the exhaust pipe 22.

[0030] It should be noted that the pressure tank 1 and the pressure switch 12 are both existing technologies and are well known to technicians in the field. Therefore, their structures and working principles will not be described in detail in this application.

[0031] Example 2:

[0032] like Figure 2As shown, on the basis of embodiment one, the bottom of the water tank 2 is fixedly connected with a closing opening 24, and the bottom of the closing opening 24 is fixedly connected with a sink 25. The submersible pump 3 is located in the sink 25, so that the bottom of the water tank 2 is tilted. When the amount of water is small, the water in the water tank 2 will gather in the sink 25, thereby ensuring that the submersible pump 3 can pump water.

[0033] Example 3:

[0034] like Figure 3 As shown, on the basis of the second embodiment, a side wall of the trough 25 is rotatably connected to a rotating shaft 4, and the rotating shaft 4 is rotatably connected to the side wall of the trough 25 through a sealed bearing, and the rotating shaft 4 passes through the side wall of the trough 25, and one end of the rotating shaft 4 is fixedly connected to a rocker 41, and the end of the rocker 41 is fixedly connected to a buoyancy ball 42, and the end of the rotating shaft 4 away from the rocker 41 is fixedly connected to a pressure rod 43. When the water volume in the water tank 2 is sufficient, the buoyancy ball 42 floats, and the inclination angle of the pressure rod 43 is fixed. When the water volume in the water tank 2 is less and gradually decreases, the buoyancy ball 42 drops, so that the rotating shaft 4 rotates , the inclination angle of the pressure rod 43 changes accordingly. A support 44 is fixedly connected to one side of the sink 25, and a button switch 45 is fixedly installed on the top of the support 44. When the water volume in the water tank 2 is small, the buoyancy ball 42 drops, and the pressure rod 43 rotates through the rotating shaft 4. The end of the pressure rod 43 can press down the button switch 45. The button switch 45 is connected in series with the pressure switch 12. When the button switch 45 is pressed, the circuit is broken. Under normal circumstances, the button switch 45 is in a closed path state. Therefore, under normal circumstances, the switch of the pressure switch 12 controls the start and stop of the submersible pump 3.

[0035] Specifically, a limit plate 46 is fixedly connected to one side of the trough 25. When there is sufficient water in the water tank 2, the buoyancy ball 42 floats to a certain height, and the pressure rod 43 rotates and hits the bottom of the limit plate 36, so that the buoyancy ball 42 cannot continue to float. At this time, the rocker 41 connected to the buoyancy ball 42 is in a tilted state. Therefore, when there is no water in the water tank 2, the rocker 41 can rotate in the specified direction to ensure that the pressure rod 43 can accurately press the button switch 45.

[0036] The working principle of the utility model is as follows: the water storage tank 2 can be buried underground, the exhaust pipe 22 extends above the ground, and the pressure tank 1 is installed above the ground. When in use, the waste water generated by the pure water machine enters the water storage tank 2 through the water inlet pipe 21, and the submersible pump 3 transports the water source in the water storage tank 2 to the pressure tank 1. When the pressure in the pressure tank 1 reaches the upper limit of the pressure switch 12, the pressure switch 12 is disconnected, the submersible pump 3 stops supplying water, and the pressure tank 1 transports the water to the toilet or green belt and other locations through the internal air pressure. When the pressure in the pressure tank 1 is lower than the lower limit of the pressure switch 12, the submersible pump 3 starts to transport water to the pressure tank 1.

[0037] When the water in the water storage tank 2 drops to the sink 25, the buoyancy ball 42 sinks, and the pressure rod 43 will rotate and press the button switch 45, causing the button switch 45 to disconnect the circuit. At this time, when the pressure in the pressure tank 1 drops to the lower limit of the pressure switch 12, the pressure switch 12 is closed and energized. Since the button switch 45 is open, the submersible pump 3 will not be powered on and started, thereby avoiding the problem of heat damage caused by the submersible pump 3 working in a waterless state.

Claims

1. A pure water preparation wastewater recovery device, comprising a pressure tank (1) and a water storage tank (2), characterized in that: The top of the water storage tank (1) is fixedly connected to a water inlet pipe (21) and an exhaust pipe (22); the top of one side of the water storage tank (1) is fixedly connected to a drain pipe (23); a submersible pump (3) is provided inside the water storage tank (2); the output end of the submersible pump (3) is fixedly connected to a delivery pipe (31); one end of the delivery pipe (31) away from the submersible pump (3) is fixedly connected to the water inlet of the pressure tank (1); and a one-way valve (32) is provided on the delivery pipe (31); a water outlet pipe (11) is provided at the bottom of one side of the pressure tank (1); a pressure switch (12) is fixedly installed on the surface of the pressure tank (1); and the pressure switch (12) is connected in series with the submersible pump (3).

2. The pure water preparation wastewater recovery device according to claim 1, characterized in that: A sewage pipe (13) is provided at the bottom of the pressure tank (1).

3. The pure water preparation wastewater recovery device according to claim 1, characterized in that: The exhaust pipe (22) is in an inverted J shape, with its outlet facing downward.

4. The pure water preparation wastewater recovery device according to claim 1, characterized in that: The bottom of the water storage tank (2) is fixedly connected to a closing opening (24), the bottom of the closing opening (24) is fixedly connected to a sink (25), and the submersible pump (3) is located in the sink (25).

5. The pure water preparation wastewater recovery device according to claim 4, characterized in that: A side wall of the trough (25) is rotatably connected to a rotating shaft (4), one end of the rotating shaft (4) is fixedly connected to a rocker (41), and the end of the rocker (41) is fixedly connected to a buoyancy ball (42).

6. The pure water preparation wastewater recovery device according to claim 5, characterized in that: The end of the rotating shaft (4) away from the rocker (41) is fixedly connected to a pressure rod (43), one side of the sink (25) is fixedly connected to a support (44), and a button switch (45) is fixedly installed on the top of the support (44), and the button switch (45) is connected in series with the pressure switch (12).

7. The pure water preparation wastewater recovery device according to claim 6, characterized in that: One side of the sink (25) is fixedly connected to a limiting plate (46).

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