A device for recycling wastewater from a direct drinking water machine

Abstract

This application relates to a wastewater recycling device for direct drinking water machines, belonging to the technical field of wastewater treatment and recycling for direct drinking water machines. It includes an RO reverse osmosis membrane tube, with a wastewater discharge pipe fixedly installed on the outside of the RO reverse osmosis membrane tube. This application automatically stores the wastewater discharged from the RO reverse osmosis membrane tube by setting a wastewater collection tank, eliminating the need for manual collection. Then, a wastewater pump transports the wastewater to the filter cartridge through a connecting pipe. The activated carbon cartridge in the filter assembly efficiently purifies the wastewater. A perforated water tank and a fixed plate form a stable wastewater flow path, ensuring that the wastewater is purified. Simultaneously, a drive motor of the cleaning component rotates the rotating disc, connecting plate, and cleaning brush, preventing the activated carbon cartridge from clogging and eliminating the need for manual cleaning. An ultraviolet sterilizer in the water tank then sterilizes the wastewater. Finally, a water pump transports the wastewater to external equipment through a drain pipe, achieving wastewater recycling and reuse, avoiding water waste, and significantly reducing the user's operational burden.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment and recycling technology for drinking water machines, and in particular to a wastewater recycling device for drinking water machines. Background Technology

[0002] With increasing water pollution, tap water quality is often failing to meet direct drinking standards, and secondary pollution problems exist in water distribution systems. As a water purification device, direct drinking water machines are gradually becoming mainstream in the market. These machines use a multi-stage filtration system, including PP cotton filters, activated carbon filters, and RO reverse osmosis membranes, to purify tap water to a level suitable for direct drinking.

[0003] Currently, most direct drinking water machines on the market are not equipped with a dedicated wastewater recycling system. The wastewater generated is mostly discharged directly into the sewer, resulting in water waste. Although the wastewater generated during the operation of direct drinking water machines does not meet drinking standards, it still has non-drinking reuse value. Direct discharge leads to the loss of recyclable water resources. Although a few high-end devices come with simple collection devices, users need to manually empty the wastewater regularly. If the operation is not timely, it can easily cause wastewater to overflow and pollute the environment. In addition, the collection device lacks a convenient maintenance structure, and bacteria can easily grow with long-term use, making the user's cleaning and maintenance process cumbersome. Utility Model Content

[0004] The purpose of this application is to provide a wastewater recycling device for direct drinking water machines, which has the advantages of transporting wastewater to external equipment, realizing wastewater recycling and reuse, avoiding water waste, and greatly reducing the user's operating burden, thus solving the problems mentioned in the background art.

[0005] This application provides a wastewater recycling device for a direct drinking water machine, employing the following technical solution: A wastewater recycling device for a direct drinking water machine includes an RO reverse osmosis membrane tube. A wastewater discharge pipe is fixedly installed on the outer side of the RO reverse osmosis membrane tube. A wastewater collection tank is fixedly installed at the other end of the wastewater discharge pipe. A wastewater pump is fixedly installed on the outer side of the wastewater collection tank. A connecting pipe is fixedly connected to the output end of the wastewater pump. A filter cartridge is fixedly connected to the other end of the connecting pipe. A cleaning assembly is provided on the inner side of the filter cartridge. A maintenance cover is fixedly connected to the outer side of the filter cartridge. A water outlet pipe is fixedly connected to the inner side of the filter cylinder. A filter assembly is provided inside the filter cylinder. The filter assembly includes two fixed discs. An installation cylinder is fixedly connected between the two fixed discs. Multiple circumferentially arrayed water permeable grooves are opened on the outer side of the installation cylinder. An activated carbon cylinder is sleeved on the outer side of the installation cylinder. A water storage tank is fixedly connected to the other end of the water outlet pipe. An ultraviolet sterilizer is fixedly installed inside the lid of the water storage tank. A reuse water pump is fixedly installed on the outer side of the water storage tank. A drain pipe is fixedly connected to the output end of the reuse water pump. The drain pipe is connected to external non-potable water equipment.

[0006] By adopting the above technical solution, the wastewater collection tank can store the wastewater discharged from the RO reverse osmosis membrane tube without the need for manual temporary collection. Then, the wastewater pump can actively transport the wastewater in the wastewater collection tank to the filter cartridge through the connecting pipe. At this time, the activated carbon cartridge in the filter component can adsorb the odor and impurities in the wastewater to purify the wastewater. The permeable tank facilitates the entry of the purified wastewater into the installation cartridge, and the cleaning component can automatically clean the impurities on the surface of the activated carbon cartridge. The inspection cover is easy to open for maintenance, eliminating the need for users to manually pour out wastewater or frequently disassemble and clean it, greatly reducing the user's operational burden. After that, the purified wastewater is transported to the storage tank through the outlet pipe. At this time, the ultraviolet sterilizer on the inside of the storage tank cover can further sterilize the wastewater to prevent bacterial growth. Then, the water pump can transport the treated wastewater in the storage tank to the external non-potable water equipment through the drain pipe, realizing the recycling, purification and reuse of wastewater, and avoiding the waste of water resources caused by direct discharge of wastewater.

[0007] Preferably, the inspection cover and the filter cartridge are fixedly connected by bolts.

[0008] By adopting the above technical solution, the inspection cover and the filter cartridge are fixedly connected by bolts. The bolt connection can not only ensure the connection stability between the inspection cover and the filter cartridge, but also prevent wastewater leakage.

[0009] Preferably, one end of the water outlet pipe is fixedly connected to a flange, and the flange and the fixed plate are fixedly connected by bolts.

[0010] By adopting the above technical solution, the water outlet pipe is bolted to the fixed plate through a flange. The flange can increase the contact area between the water outlet pipe and the fixed plate, ensuring a tight connection between the two and effectively preventing wastewater leakage at the connection.

[0011] Preferably, the middle part of the mounting cylinder is a hollow structure, and one of the fixing plates has a through hole in the middle that is adapted to the hollow structure of the mounting cylinder. The inner wall of the mounting cylinder is connected to the inner wall of the water outlet pipe through the through hole.

[0012] By adopting the above technical solution, the middle part of the installation cylinder is designed as a hollow structure and is connected to the water outlet pipe through the perforation of the fixing plate, so that the flow path of wastewater in the filter cylinder is more reasonable, and the flow of wastewater must pass through the activated carbon cylinder.

[0013] Preferably, the cleaning assembly includes a drive motor fixedly embedded in the outside of the filter cartridge, a rotating disk fixedly connected to the output end of the drive motor, a connecting plate fixedly connected to the outside of the rotating disk, two springs fixedly connected to the outside of the connecting plate, a fixing plate fixedly connected to one end of the two springs, and a cleaning brush fixedly connected to the outside of the fixing plate.

[0014] By adopting the above technical solution, the drive motor can drive the rotating disk to rotate. The rotating disk drives the spring, the fixing plate and the cleaning brush to rotate synchronously through the connecting plate, which ensures that the impurities attached to the surface of the activated carbon cylinder are thoroughly cleaned, avoiding the impurities from clogging the activated carbon cylinder and affecting the filtration effect. At the same time, the spring can provide elastic force to keep the cleaning brush in contact with the surface of the activated carbon cylinder, ensuring the cleaning effect.

[0015] Preferably, the cleaning brush is made of nylon, and its shape is adapted to the shape of the activated carbon cartridge.

[0016] By adopting the above technical solution, the cleaning brush is made of nylon material. Nylon material has moderate hardness, which can effectively scrape off impurities on the surface of the activated carbon cartridge without scratching the outer structure of the activated carbon cartridge, thus ensuring that the filtration performance of the activated carbon cartridge is not damaged.

[0017] Preferably, two guide telescopic rods are fixedly connected to the bottom surface of the connecting plate, and the telescopic ends of the guide telescopic rods are fixedly connected to the outside of the fixed plate.

[0018] By adopting the above technical solution, the guide telescopic rod can restrict and guide the movement direction of the fixed plate, preventing the fixed plate from shifting or shaking. Combined with the spring push, it ensures that the cleaning brush always remains in contact with the surface of the activated carbon cylinder.

[0019] Preferably, the cleaning assembly further includes a guide ring fixedly connected to the inner side of the filter cartridge, a slider slidably connected to the inner side of the guide ring, and the outer side of the slider fixedly connected to the outer side of the connecting plate.

[0020] By adopting the above technical solution, the cooperation between the guide ring and the slider allows the slider to slide along the inner side of the guide ring when the connecting plate rotates, which can limit the rotation trajectory of the connecting plate and prevent the connecting plate from shaking or deviating during rotation.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This direct drinking water machine wastewater recycling device automatically stores wastewater discharged from the RO reverse osmosis membrane tube by setting a wastewater collection tank, eliminating the need for manual collection. The wastewater is then pumped to the filter cartridge via a connecting pipe. The activated carbon cartridge in the filter assembly efficiently purifies the wastewater. A perforated water tank and fixed plate form a stable wastewater flow path, ensuring purification. Simultaneously, the drive motor of the cleaning component rotates the rotating disc, connecting plate, and cleaning brush. Springs keep the cleaning brush in contact with the activated carbon cartridge, preventing clogging and eliminating the need for manual cleaning. An ultraviolet sterilizer in the storage tank then sterilizes the wastewater. Finally, a water pump pumps the wastewater through a drain pipe to external equipment, achieving wastewater recycling and reuse, avoiding water waste, and significantly reducing the user's operational burden. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the entire application; Figure 2 This is a cross-sectional structural diagram of the filter cartridge of this application; Figure 3 This is an exploded structural diagram of the filter assembly and water outlet pipe of this application; Figure 4 This is a three-dimensional structural diagram of the cleaning component of this application; Figure 5 This is a schematic diagram of the internal structure of the water tank in this application.

[0023] In the picture: 1. RO reverse osmosis membrane tubing; 2. Wastewater discharge pipe; 3. Wastewater collection tank; 4. Wastewater pump; 5. Connecting pipe; 6. Filter cartridge; 7. Cleaning assembly; 701. Drive motor; 702. Rotating disc; 703. Connecting plate; 704. Spring; 705. Fixing plate; 706. Cleaning brush; 707. Guide telescopic rod; 708. Guide ring; 709. Sliding block; 8. Inspection cover; 9. Outlet pipe; 10. Flange; 11. Filter assembly; 1101. Fixing disc; 1102. Mounting cylinder; 1103. Permeable tank; 1104. Activated carbon cartridge; 12. Water storage tank; 13. Reuse water pump; 14. Drain pipe; 15. Ultraviolet sterilizer. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0025] Example 1: A wastewater recycling device for direct drinking water machines, please refer to... Figure 1 , Figure 2 and Figure 4The system includes an RO reverse osmosis membrane tube 1, a wastewater discharge pipe 2 fixedly installed on the outside of the RO reverse osmosis membrane tube 1, and a wastewater collection tank 3 fixedly installed at the other end of the wastewater discharge pipe 2. The wastewater collection tank 3 can store the wastewater discharged from the RO reverse osmosis membrane tube 1, eliminating the need for manual temporary collection. A wastewater pump 4 is fixedly installed on the outside of the wastewater collection tank 3, and a connecting pipe 5 is fixedly connected to the output end of the wastewater pump 4. A filter cartridge 6 is fixedly connected to the other end of the connecting pipe 5. A cleaning component 7 is provided inside the filter cartridge 6. The cleaning component 7 can automatically clean impurities on the surface of the activated carbon cartridge 1104. The cleaning component 7 includes a drive motor 701 fixedly embedded on the outside of the filter cartridge 6, and a rotating disk 702 fixedly connected to the output end of the drive motor 701. A connecting plate 703 is fixedly connected to the outer side of the disc 702. Two springs 704 are fixedly connected to the outer side of the connecting plate 703. A fixing plate 705 is fixedly connected to one end of the two springs 704. A cleaning brush 706 is fixedly connected to the outer side of the fixing plate 705. The drive motor 701 can drive the disc 702 to rotate. The disc 702 drives the springs 704, the fixing plate 705 and the cleaning brush 706 to rotate synchronously through the connecting plate 703. This ensures that the impurities attached to the surface of the activated carbon cylinder 1104 are thoroughly cleaned, preventing impurities from clogging the activated carbon cylinder 1104 and affecting the filtration effect. At the same time, the springs 704 can provide elastic force to keep the cleaning brush 706 in contact with the surface of the activated carbon cylinder 1104, ensuring the cleaning effect.

[0026] Please refer to Figure 1 , Figure 3 and Figure 5 A maintenance cover 8 is fixedly connected to the outer side of the filter cartridge 6. The maintenance cover 8 is easy to open for maintenance, eliminating the need for users to manually empty wastewater or frequently disassemble and clean it, greatly reducing the user's operational burden. A water outlet pipe 9 is fixedly connected to the inner side of the maintenance cover 8. A filter assembly 11 is provided inside the filter cartridge 6. The filter assembly 11 includes two fixing discs 1101, and an installation cylinder 1102 is fixedly connected between the two fixing discs 1101. The outer side of the installation cylinder 1102 has multiple circumferentially arrayed water permeable grooves 1103. An activated carbon cylinder 1104 is sleeved on the outer side of the installation cylinder 1102. The activated carbon cylinder 1104 in the filter assembly 11 can adsorb odors and impurities in the wastewater. Wastewater is purified by a water tank 12 fixedly connected to the other end of the outlet pipe 9. An ultraviolet sterilizer 15 is fixedly installed inside the lid of the water tank 12. The ultraviolet sterilizer 15 can further sterilize the wastewater and prevent bacterial growth. A reuse water pump 13 is fixedly installed on the outside of the water tank 12. A drain pipe 14 is fixedly connected to the output end of the reuse water pump 13. The drain pipe 14 is connected to external non-potable water equipment. The reuse water pump 13 can transport the treated wastewater in the water tank 12 to the external non-potable water equipment through the drain pipe 14, realizing the recycling, purification and reuse of wastewater and avoiding the waste of water resources caused by direct discharge of wastewater.

[0027] Example 2: A wastewater recycling device for direct drinking water machines, please refer to... Figure 2 and Figure 3 The inspection cover 8 and the filter cartridge 6 are fixedly connected by bolts. This bolted connection not only ensures the stability of the connection between the inspection cover 8 and the filter cartridge 6, preventing wastewater leakage, but also facilitates maintenance of the internal components of the filter cartridge 6. The outlet pipe 9 is bolted to the fixing plate 1101 via the flange 10. Removing the corresponding bolts allows for opening the inspection cover 8 or separating the outlet pipe 9 from the filter assembly 11, facilitating maintenance. One end of the outlet pipe 9 is fixedly connected to the flange 10, which is bolted to the fixing plate 1101. The flange 10 is bolted to the fixed plate 1101. The flange 10 can increase the contact area between the water outlet pipe 9 and the fixed plate 1101, ensuring a tight connection between the two and effectively preventing wastewater leakage at the connection. The middle part of the mounting cylinder 1102 is hollow. One of the fixed plates 1101 has a through hole in the middle that matches the hollow structure of the mounting cylinder 1102. The inner wall of the mounting cylinder 1102 is connected to the inner wall of the water outlet pipe 9 through the through hole. The middle part of the mounting cylinder 1102 is hollow and is connected to the water outlet pipe 9 through the through hole of the fixed plate 1101, making the flow path of wastewater in the filter cylinder 6 more reasonable, so that the flow of wastewater must pass through the activated carbon cylinder 1104.

[0028] Please refer to Figure 2 and Figure 4 The cleaning brush 706 is made of nylon. Its shape matches the shape of the activated carbon cartridge 1104. The nylon material provides moderate hardness, effectively removing impurities from the surface of the activated carbon cartridge 1104 without damaging its outer structure, thus ensuring its filtration performance is not compromised. Two guide telescopic rods 707 are fixedly connected to the bottom surface of the connecting plate 703, with their telescopic ends fixedly connected to the outside of the fixed plate 705. These guide telescopic rods 707 restrict and guide the movement of the fixed plate 705, preventing... If the fixed plate 705 shifts or shakes, it will be pushed by the spring 704 to ensure that the cleaning brush 706 always remains in contact with the surface of the activated carbon cartridge 1104. The cleaning assembly 7 also includes a guide ring 708 fixedly connected to the inside of the filter cartridge 6. A slider 709 is slidably connected to the inside of the guide ring 708, and the outside of the slider 709 is fixedly connected to the outside of the connecting plate 703. The cooperation between the guide ring 708 and the slider 709 allows the slider 709 to slide along the inside of the guide ring 708 when the connecting plate 703 rotates, which can limit the rotation trajectory of the connecting plate 703 and prevent the connecting plate 703 from shaking or shifting during rotation.

[0029] The implementation principle of this application embodiment is as follows: When the direct drinking water machine is running, the wastewater from the RO reverse osmosis membrane tube 1 flows directly into the wastewater collection tank 3 through the wastewater discharge pipe 2. The wastewater collection tank 3 temporarily stores the wastewater. When a certain amount of wastewater is stored in the wastewater collection tank 3, the wastewater pump 4 on the outside of the wastewater collection tank 3 is started. The wastewater pump 4 generates power to transport the wastewater in the tank to the inside of the filter cartridge 6 through the connecting pipe 5. After the wastewater enters the filter cartridge 6, it will first contact the inner filter component 11. Due to the installation of the cartridge 11... The middle part of the 02 is hollow, and the perforation of the fixed plate 1101 is connected to the outlet pipe 9, which forces the wastewater to permeate through the activated carbon cylinder 1104. During this process, the activated carbon cylinder 1104 adsorbs odors and impurities in the wastewater, completing the wastewater purification. The purified wastewater then enters the interior of the installation cylinder 1102 through the water permeable groove 1103 on the outside of the installation cylinder 1102, and then flows into the outlet pipe 9 through the perforation of the fixed plate 1101. During the wastewater filtration process, the cleaning component inside the filter cylinder 6 is activated. 7. The drive motor 701 drives the rotating disk 702 to rotate. The rotating disk 702 drives the spring 704, the fixing plate 705 and the cleaning brush 706 to rotate synchronously through the connecting plate 703. At this time, the spring 704 provides elastic force to keep the cleaning brush 706 in contact with the surface of the activated carbon cylinder 1104. The guide telescopic rod 707 prevents the fixing plate 705 from shifting. At the same time, the guide ring 708 cooperates with the slider 709 to ensure the stable rotation of the connecting plate 703, realizing the automatic cleaning of impurities on the surface of the activated carbon cylinder 1104. After that, the purified wastewater is transported to the water storage tank 12 through the outlet pipe 9. The ultraviolet sterilizer 15 inside the cover of the water storage tank 12 is activated to sterilize the wastewater to prevent bacterial growth. When the external non-potable water equipment needs water, the reuse water pump 13 outside the water storage tank 12 is activated. The reuse water pump 13 transports the treated wastewater in the water storage tank 12 to the external non-potable water equipment through the drain pipe 14, finally completing the wastewater recycling, purification, sterilization and reuse process.

Claims

1. A wastewater recycling device for direct drinking water machines, comprising an RO reverse osmosis membrane tube (1), characterized in that: A wastewater discharge pipe (2) is fixedly installed on the outside of the RO reverse osmosis membrane tube (1). A wastewater collection tank (3) is fixedly installed at the other end of the wastewater discharge pipe (2). A wastewater pump (4) is fixedly installed on the outside of the wastewater collection tank (3). A connecting pipe (5) is fixedly connected to the output end of the wastewater pump (4). A filter cartridge (6) is fixedly connected to the other end of the connecting pipe (5). A cleaning assembly (7) is provided on the inside of the filter cartridge (6). An inspection cover (8) is fixedly connected to the outside of the filter cartridge (6). A water outlet pipe (9) is fixedly connected to the inside of the inspection cover (8). A filter assembly (11) is provided on the inside of the filter cartridge (6). The filter assembly (11) includes two... A fixed plate (1101) is fixedly connected to two fixed plates (1101), and an installation cylinder (1102) is fixedly connected between them. Multiple permeable grooves (1103) in a circular array are opened on the outside of the installation cylinder (1102). An activated carbon cylinder (1104) is sleeved on the outside of the installation cylinder (1102). A water storage tank (12) is fixedly connected to the other end of the water outlet pipe (9). An ultraviolet sterilizer (15) is fixedly installed on the inside of the tank cover of the water storage tank (12). A reuse water pump (13) is fixedly installed on the outside of the water storage tank (12). A drain pipe (14) is fixedly connected to the output end of the reuse water pump (13). The drain pipe (14) is connected to an external non-potable water equipment.

2. The wastewater recycling device for a direct drinking water machine according to claim 1, characterized in that: The inspection cover (8) and the filter cylinder (6) are fixedly connected by bolts.

3. The wastewater recycling device for a direct drinking water machine according to claim 1, characterized in that: One end of the water outlet pipe (9) is fixedly connected to a flange (10), and the flange (10) and the fixing plate (1101) are fixedly connected by bolts.

4. The wastewater recycling device for a direct drinking water machine according to claim 3, characterized in that: The middle part of the mounting cylinder (1102) is hollow, and one of the fixing plates (1101) has a through hole in the middle that is compatible with the hollow structure of the mounting cylinder (1102). The inner wall of the mounting cylinder (1102) is connected to the inner wall of the water outlet pipe (9) through the through hole.

5. The wastewater recycling device for a direct drinking water machine according to claim 1, characterized in that: The cleaning assembly (7) includes a drive motor (701) fixedly embedded on the outside of the filter cartridge (6). The output end of the drive motor (701) is fixedly connected to a rotating disk (702). A connecting plate (703) is fixedly connected to the outside of the rotating disk (702). Two springs (704) are fixedly connected to the outside of the connecting plate (703). One end of the two springs (704) is fixedly connected to a fixing plate (705). A cleaning brush (706) is fixedly connected to the outside of the fixing plate (705).

6. The wastewater recycling device for a direct drinking water machine according to claim 5, characterized in that: The cleaning brush (706) is made of nylon, and its shape is compatible with the shape of the activated carbon cylinder (1104).

7. The wastewater recycling device for a direct drinking water machine according to claim 5, characterized in that: The bottom surface of the connecting plate (703) is fixedly connected to two guide telescopic rods (707), and the telescopic ends of the guide telescopic rods (707) are fixedly connected to the outside of the fixed plate (705).

8. The wastewater recycling device for a direct drinking water machine according to claim 7, characterized in that: The cleaning assembly (7) also includes a guide ring (708) fixedly connected to the inner side of the filter cylinder (6), and a slider (709) is slidably connected to the inner side of the guide ring (708), and the outer side of the slider (709) is fixedly connected to the outer side of the connecting plate (703).

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