A pressure-free water supply device with water purification function

Abstract

This utility model relates to the technical field of public facility water supply equipment, and discloses a negative pressure-free water supply device with water purification, including a flow stabilizing tank. A first fixing block is fixedly connected to the bottom of the flow stabilizing tank, and a second fixing block is fixedly connected to the bottom of the first fixing block. A permanent magnet is rotatably connected to the inner wall of the second fixing block. A housing is fixedly connected to the side of the second fixing block away from the first fixing block. A storage battery is fixedly connected to the outside of the housing. A rotating shaft is rotatably connected inside the housing. A fixing column is fixedly connected to the outer wall of the rotating shaft, and a fan blade is fixedly connected to the outer wall of the fixing column. In this utility model, an emergency power supply is achieved by using the kinetic energy of water flow through a generator to ensure stable water supply. The water purification component improves the quality of the effluent through multi-stage filtration to meet safe water use requirements. Quick disassembly of components simplifies maintenance operations and reduces operating costs. The synergy of these three aspects significantly improves the practicality and economy of the equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of public facility water supply equipment, and in particular to a negative pressure-free water supply equipment with water purification function. Background Technology

[0002] The negative pressure-free water supply equipment with water purification is an integrated water supply equipment that combines negative pressure-free water supply technology with water purification function. Without generating negative pressure or affecting the normal pressure of the municipal water supply network, it removes impurities, adsorbs odors, and inactivates microorganisms from municipal tap water through built-in or integrated water purification modules such as pretreatment, filtration, and disinfection.

[0003] The existing negative pressure-free water supply equipment with water purification mainly consists of a municipal water supply network access point, a negative pressure-free flow stabilizing tank, a pre-treatment structure, a core purification module, a variable frequency pump set, a pipeline delivery structure, and an intelligent control system. The municipal water supply network access point serves as the initial power source, driving the negative pressure-free flow stabilizing tank. The water output from the flow stabilizing tank drives the pre-treatment structure to remove large suspended solids from the water. Subsequently, the water flow continues to drive the core purification module. The purified clean water then drives the variable frequency pump set. The speed is dynamically adjusted by the instructions of the intelligent control system to deliver clean water with stable water pressure to the end user.

[0004] Existing negative pressure-free water supply equipment with water purification features core functions interrupted and uninterrupted water supply during power outages. Pumps cease operation after a power outage, directly cutting off the water supply power source. The pretreatment structure and core purification module both require electricity to ensure normal operation. Power outages disrupt the water purification process; even with water from the municipal network, impurity removal and microbial inactivation cannot be completed. The intelligent control system requires electricity to monitor and send commands for parameters such as water pressure, flow rate, and water quality. While the negative pressure-free flow stabilizing tank can temporarily buffer water pressure, it cannot achieve continuous water supply and purification on its own. Therefore, a negative pressure-free water supply equipment with water purification is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a negative pressure-free water supply device with water purification, aiming to improve the problems of water supply devices being unusable during power outages, substandard water purification effects, and difficulty in disassembly in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A negative pressure-free water supply device with water purification includes a flow stabilizing tank. A first fixing block is fixedly connected to the bottom of the flow stabilizing tank. A second fixing block is fixedly connected to the bottom of the first fixing block. A permanent magnet is rotatably connected to the inner wall of the second fixing block. A housing is fixedly connected to the side of the second fixing block away from the first fixing block. A storage battery is fixedly connected to the outside of the housing. A first rotating shaft is rotatably connected inside the housing. A fixing column is fixedly connected to the outer wall of the first rotating shaft. A fan blade is fixedly connected to the outer wall of the fixing column. A main flow pipe is fixedly connected to the outer wall of the first fixing block. Pipe joints are fixedly connected to both ends of the main flow pipe. A primary branch pipe is fixedly connected to the outer wall of the main flow pipe. A secondary branch pipe is fixedly connected to the side of the primary branch pipe away from the main flow pipe. A variable frequency pump is fixedly connected to the outside of the secondary branch pipe. A water purification component is installed at the output end of the variable frequency pump. A quick-release component is installed on the outer wall of the pipe joint.

[0007] As a further description of the above technical solution: The water purification assembly includes a filter housing 1, which is fixedly connected to the outside of the variable frequency pump. A filter screen is fixedly connected inside the filter housing 1. A bottom cover 1 is slidably connected to the side of the filter housing 1 away from the variable frequency pump. A filter housing 2 is fixedly connected to the outside of the bottom cover 1. A fixing block 3 is slidably connected inside the filter housing 2. A pleated polypropylene filter element is fixedly connected to the inner wall of the fixing block 3. A bottom cover 2 is slidably connected to the inner wall of the filter housing 2. A filter housing 3 is fixedly connected to the outside of the bottom cover 2. Coconut shell activated carbon, hollow fiber ultrafiltration membrane and alloy filter media are fixedly connected inside the filter housing 3. A bottom cover 3 is slidably connected to the inner wall of the filter housing 3. A threaded rubber ring is fixedly connected to the outer wall of the bottom cover 3.

[0008] As a further description of the above technical solution: The quick-release assembly includes an upper half-ring that snaps onto the outer wall of the pipe joint. A lower half-ring is fixedly connected to the bottom of the upper half-ring. A protrusion is fixedly connected to the inner wall of the lower half-ring. A fixing block is fixedly connected to the outer wall of the upper half-ring. A rotating shaft is rotatably connected inside the fixing block. Limiting blocks are fixedly connected to both ends of the rotating shaft. An O-ring is fixedly connected between the upper and lower half-rings. A protrusion is fixedly connected to the outer wall of the lower half-ring. A groove is formed on the outer wall of the protrusion. An eccentric handle lock is slidably connected to the top of the protrusion. A handle is fixedly connected to the side of the bottom cover away from the filter screen. A protrusion is fixedly connected to the outer wall of the bottom cover. A groove is formed inside the filter housing.

[0009] As a further description of the above technical solution: The variable frequency pump has a secondary diversion pipe fixedly connected to both its input and output ends. The main flow pipe is fixedly connected to the bottom of the outer casing. The top of the flow stabilizing tank has a water inlet, and both ends of the primary diversion pipe have water outlets.

[0010] As a further description of the above technical solution: A vacuum controller is fixedly connected to the top of the flow stabilizer, an electrical control system is fixedly connected to the outer wall of the flow stabilizer, the fan blades are evenly connected to the outer wall of the fixed column, and the permanent magnet is rotatably connected to the inside of the outer shell.

[0011] As a further description of the above technical solution: Both ends of the folded polypropylene filter element are fixedly connected to fixing blocks three, and the coconut shell activated carbon is fixedly connected to the hollow fiber ultrafiltration membrane on the side away from the bottom cover three.

[0012] As a further description of the above technical solution: The hollow fiber ultrafiltration membrane and the alloy filter media are sequentially fixedly connected to the coconut shell activated carbon on the side away from the bottom cover along the water flow direction.

[0013] As a further description of the above technical solution: The inner walls of the filter housing 1, the filter housing 2, and the filter housing 3 are all provided with groove 2, and the outer walls of the bottom cover 1, the bottom cover 2, and the bottom cover 3 are all fixedly connected with handrails.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the fan blades rotate in place due to the fixed action of the water flow under the shell, fixed column and rotating shaft. The fan blades synchronously drive the permanent magnet to rotate synchronously, thereby generating direct current. The generated direct current is then stored in the battery. When the power is off, the electric power stored in the battery can drive the variable frequency pump, which can efficiently recover the residual pressure energy in the negative pressure water supply pipeline, realize the secondary use of energy, reduce the overall energy consumption of the water supply system, and eliminate the need for additional energy consumption. It does not generate pollutants such as waste gas and wastewater, and effectively solves the problem of the water supply equipment being unable to operate due to power failure in the face of emergencies.

[0015] 2. In this utility model, water flows through filter housing one, filter housing two, and filter housing three. It is pre-treated by the filter screen inside filter housing one, and then the pre-treated water is filtered a second time by the pleated polypropylene filter element inside filter housing two. After secondary filtration, the water is further finely filtered by coconut shell activated carbon, hollow fiber ultrafiltration membrane, and alloy filter media on the inner wall of filter housing three, achieving overall precision filtration. This addresses the problem that traditional two-stage filtration systems of coarse filtration plus fine filtration are prone to clogging or insufficient precision due to their limited capacity to handle only conventional water quality. This invention achieves precise stratified treatment of impurities and pollutants of different types and particle sizes, resulting in a comprehensive improvement in filtration efficiency, water quality precision, equipment durability, and adaptability to various scenarios.

[0016] 3. In this utility model, by merging the upper and lower half rings, and with the cooperation of the fixing block four, the rotating shaft two, and the limiting block, the upper and lower half rings are closed, and the upper and lower half rings are in contact with the two protrusions on the outside of the lower half ring. The eccentric handle lock is inserted into the groove one. When the eccentric handle lock moves to the fixed position, it is rotated and tightened to complete the installation. Conversely, the eccentric handle lock is rotated out to open the upper and lower half rings, thus completing the disassembly. By inserting the bottom cover one into the filter housing one, rotating the handle, the handle drives the bottom cover one to rotate, and the bottom cover one drives the protrusion three to rotate. The protrusion three engages with the groove two. Under the elastic action of the threaded rubber ring, the engaging force is increased. Conversely, rotating the handle drives the bottom cover one and the protrusion three to rotate, thus removing them to complete the disassembly. By designing a quick disassembly structure for key components, and eliminating easily worn spring components in each quick disassembly structure, the disassembly time is greatly shortened, and the operation threshold for maintenance personnel is lowered. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a negative pressure-free water supply device with water purification proposed in this utility model. Figure 2 This is a schematic diagram of the outer shell structure of a negative pressure-free water supply device with water purification proposed in this utility model. Figure 3 This is a schematic diagram of the main pipe structure of a negative pressure-free water supply device with water purification proposed in this utility model; Figure 4 This is a schematic diagram of the primary distribution pipe structure of a negative pressure-free water supply device with water purification proposed in this utility model; Figure 5 This is a schematic diagram of the water purification component structure of a negative pressure-free water supply device with water purification proposed in this utility model. Figure 6 This is a schematic diagram of the quick-disassembly component structure of a negative pressure-free water supply device with water purification proposed in this utility model. Figure 7 for Figure 3 Enlarged view of point A in the middle; Figure 8 for Figure 5 Enlarged view of point B in the middle; Figure 9 for Figure 6 Enlarged view of point C in the middle; Figure 10 for Figure 6 Enlarged view of point D in the middle.

[0018] Legend: 1. Flow stabilizer; 2. Vacuum controller; 3. Electrical control system; 4. Fixing block one; 5. Main flow pipe; 6. Pipe joint; 7. Variable frequency pump; 8. Water purification components; 801. Filter housing one; 802. Filter screen; 803. Bottom cover one; 804. Filter housing two; 805. Fixing block three; 806. Pleated polypropylene filter element; 807. Bottom cover two; 808. Filter housing three; 809. Coconut shell activated carbon; 810. Hollow fiber ultrafiltration membrane; 811. Alloy filter media; 812. Bottom cover three; 813. Threaded rubber ring; 9. Quick disassembly assembly Components; 901, Upper half ring; 902, Lower half ring; 903, Protrusion 1; 904, Fixing block 4; 905, Rotating shaft 2; 906, Limiting block; 907, O-ring; 908, Protrusion 2; 909, Groove 1; 910, Eccentric handle lock; 911, Handrail; 912, Protrusion 3; 913, Groove 2; 10, Primary diversion pipe; 11, Secondary diversion pipe; 12, Inlet; 13, Outlet; 14, Fixing block 2; 15, Outer shell; 16, Battery; 17, Rotating shaft 1; 18, Fixing column; 19, Fan blade; 20, Permanent magnet. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 ,and Figure 7This utility model provides an embodiment of a negative pressure-free water supply device with water purification, comprising a flow stabilizing tank 1, a fixing block 4 fixedly connected to the bottom of the flow stabilizing tank 1, a fixing block 24 fixedly connected to the bottom of the fixing block 4, a permanent magnet 20 rotatably connected to the inner wall of the fixing block 24, a housing 15 fixedly connected to the side of the fixing block 24 away from the fixing block 4, a battery 16 fixedly connected to the outside of the housing 15, a rotating shaft 17 rotatably connected inside the housing 15, a fixing column 18 fixedly connected to the outer wall of the rotating shaft 17, a fan blade 19 fixedly connected to the outer wall of the fixing column 18, a main flow pipe 5 fixedly connected to the outer wall of the fixing block 4, pipe joints 6 fixedly connected to both ends of the main flow pipe 5, and a fan blade 19 fixedly connected to the outer wall of the main flow pipe 5. A primary diversion pipe 10 is fixedly connected to a secondary diversion pipe 11 on the side of the primary diversion pipe 10 away from the main flow pipe 5. A variable frequency pump 7 is fixedly connected to the outside of the secondary diversion pipe 11. A water purification component 8 is provided at the output end of the variable frequency pump 7. A quick disassembly component 9 is provided on the outer wall of the pipe joint 6. The input and output ends of the variable frequency pump 7 are both fixedly connected to the secondary diversion pipe 11. The main flow pipe 5 is fixedly connected to the bottom of the outer shell 15. The top of the flow stabilizing tank 1 has an inlet 12. The two ends of the primary diversion pipe 10 have outlets 13. The top of the flow stabilizing tank 1 is fixedly connected to a vacuum controller 2. The outer wall of the flow stabilizing tank 1 is fixedly connected to an electrical control system 3. Fan blades 19 are evenly connected to the outer wall of the fixed column 18. The permanent magnet 20 is rotatably connected to the inside of the outer shell 15.

[0021] Specifically, the kinetic energy of the flowing water, under the coordinated fixing and limiting action of the outer shell 15, the fixed column 18, and the rotating shaft 17, drives the fan blade 19 to rotate stably in place. During the rotation of the fan blade 19, the permanent magnet 20 rotates in the same direction simultaneously, continuously generating direct current using the principle of electromagnetic induction. The generated electricity is then efficiently stored in the battery 16 to form an energy reserve. In the event of a power outage or other sudden power failure, the stored electrical energy in the battery 16 can be quickly activated to provide stable power support for the variable frequency pump 7, ensuring its normal operation. This fully utilizes water flow as a clean energy source, achieving efficient energy conversion and storage, reducing dependence on traditional electricity, and ensuring the emergency operation of the variable frequency pump 7 in the event of a power outage. This effectively improves the operational stability and risk resistance of the relevant system, and has the dual benefits of energy saving, environmental protection, and emergency support.

[0022] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8The water purification component 8 includes a filter housing 801, which is fixedly connected to the outside of the variable frequency pump 7. A filter screen 802 is fixedly connected inside the filter housing 801. A bottom cover 803 is slidably connected to the side of the filter housing 801 away from the variable frequency pump 7. A filter housing 804 is fixedly connected to the outside of the bottom cover 803. A fixing block 805 is slidably connected inside the filter housing 804. A pleated polypropylene filter element 806 is fixedly connected to the inner wall of the fixing block 805. A bottom cover 807 is slidably connected to the inner wall of the filter housing 804. A filter outer... Shell 3 808, the filter shell 3 808 has coconut shell activated carbon 809, hollow fiber ultrafiltration membrane 810 and alloy filter media 811 fixedly connected inside. The filter shell 3 808 has a bottom cover 3 812 slidably connected to the inner wall. The bottom cover 3 812 has a threaded rubber ring 813 fixedly connected to the outer wall. The pleated polypropylene filter element 806 has fixing blocks 3 805 fixedly connected to both ends. Coconut shell activated carbon 809 is fixedly connected to the hollow fiber ultrafiltration membrane 810 on the side away from bottom cover 3 812. Hollow fiber ultrafiltration membrane 810 and alloy filter media 811 are fixedly connected in sequence along the water flow direction to the side of coconut shell activated carbon 809 away from bottom cover 2 807.

[0023] Specifically, water flows sequentially through filter housing 1 (801), filter housing 2 (804), and filter housing 3 (808). First, pre-treatment is completed inside filter housing 1 (801) by the filter screen 802, initially intercepting larger particles of impurities in the water. Then, the water enters filter housing 2 (804), where a secondary filtration process is performed by the pleated polypropylene filter element 806 inside, further removing suspended solids, colloids, and other fine impurities. The water after secondary filtration finally enters filter housing 3 (808), where it is filtered by coconut shell activated carbon 809, hollow fiber ultrafiltration membrane 810, and alloy filter elements installed on the inner wall of filter housing 3 (808). The 811 materials work synergistically to complete fine filtration. Among them, coconut shell activated carbon 809 can adsorb odors and some organic pollutants in the water, hollow fiber ultrafiltration membrane 810 can intercept tiny particles, bacteria, etc., and alloy filter media 811 assists in deepening the filtration effect, ultimately achieving high-precision purification of water flow. Through multi-stage, multi-media synergistic filtration design, it can not only remove impurities and pollutants of different types and particle sizes in the water layer by layer, greatly improving the purity of the effluent and meeting higher water standards, but also effectively extend the service life of the overall filtration system and reduce subsequent maintenance costs due to the complementary functions and clear division of labor of each filter media, thus possessing good practicality and economy.

[0024] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 9 and Figure 10The quick-release assembly 9 includes an upper half-ring 901, which is snapped onto the outer wall of the pipe joint 6. A lower half-ring 902 is fixedly connected to the bottom of the upper half-ring 901. A protrusion 903 is fixedly connected to the inner wall of the lower half-ring 902. A fixing block 904 is fixedly connected to the outer wall of the upper half-ring 901. A rotating shaft 905 is rotatably connected inside the fixing block 904. Limiting blocks 906 are fixedly connected to both ends of the rotating shaft 905. An O-ring 907 is fixedly connected between the upper half-ring 901 and the lower half-ring 902. A protrusion 908 is fixedly connected to the outer wall of the lower half-ring 902. The outer wall of protrusion 2 908 has a groove 1 909. The top of protrusion 2 908 is slidably connected to an eccentric handle lock 910. The bottom cover 1 803 is fixedly connected to a handle 911 on the side away from the filter screen 802. The outer wall of bottom cover 1 803 is fixedly connected to protrusion 3 912. The inside of filter housing 1 801 has a groove 2 913. The inner walls of filter housing 1 801, filter housing 2 804 and filter housing 3 808 all have groove 2 913. The outer walls of bottom cover 1 803, bottom cover 2 807 and bottom cover 3 812 are all fixedly connected to handle 911.

[0025] Specifically, by first aligning the upper half ring 901 with the lower half ring 902, precise closure is achieved through the coordinated action of the fixing block 904, the rotating shaft 905, and the limiting block 906, ensuring a tight fit between the protrusions 908 on the outer sides of the two rings. Then, the eccentric handle lock 910 is inserted into the groove 909 and, after moving to the fixed position, it is tightened by rotation. This completes the assembly of the upper half ring 901 and the lower half ring 902. For disassembly, the eccentric handle lock 910 is rotated in the opposite direction and pulled out, opening the upper half ring 901 and the lower half ring 902 to complete the separation. For the assembly of the bottom cover and the filter housing, after inserting the bottom cover into the filter housing, the handle 911 is rotated. The handle 911 drives the bottom cover to rotate synchronously, thereby causing the protrusions 908 on the bottom cover to fit together. Block 3 912 engages with groove 2 913 on the filter housing. At the same time, the threaded rubber ring 813 enhances the engagement stability with its own elasticity, ensuring a firm connection. When removing the bottom cover, rotate the handle 911 in the opposite direction. The handle 911 drives the bottom cover and protrusion 3 912 to rotate. After the engagement between protrusion 3 912 and groove 2 913 is released, the bottom cover can be removed to complete the disassembly. Through modular docking and elastic auxiliary engagement mechanism, the installation and disassembly process is not only simple and clear, but also does not require complicated tools, greatly improving the efficiency of assembly and maintenance. The limit block 906 and threaded rubber ring 813 ensure the accuracy and firmness of the connection of each component, effectively preventing loosening, and taking into account both ease of operation and structural stability.

[0026] Working principle: When the negative pressure water supply equipment utilizes energy, it uses the kinetic energy of water flow to drive the fan blade 19 to rotate stably in place under the coordinated fixed limit of the outer shell 15, the fixed column 18 and the rotating shaft 17. The fan blade 19 synchronously drives the permanent magnet 20 to rotate, continuously generating DC power through the principle of electromagnetic induction and efficiently storing it in the battery 16. In the event of a power outage, the power of the battery 16 can be quickly activated to provide stable power for the variable frequency pump 7. When the negative pressure-free water supply equipment purifies the water flow, the water flows through filter housing 1 801, filter housing 2 804 and filter housing 3 808 in sequence. First, it is pre-treated by the filter screen 802 in filter housing 1 801 to intercept larger particulate impurities. Then, it is filtered a second time by the pleated polypropylene filter element 806 in filter housing 2 804 to remove suspended solids and colloids. Finally, it is finely filtered by the coconut shell activated carbon 809, hollow fiber ultrafiltration membrane 810 and alloy filter media 811 on the inner wall of filter housing 3 808 to achieve high-precision purification of the water flow. When assembling and disassembling components of the negative pressure water supply equipment, the upper half ring 901 and the lower half ring 902 are closed by connecting and closing the fixing block four 904, the rotating shaft two 905 and the limiting block 906. After the protrusion two 908 is in contact, the eccentric handle lock 910 is aligned with the groove one 909, inserted and rotated to tighten to complete the assembly. The bottom cover can be disassembled by reversing the operation. When assembling the bottom cover and the filter housing, after inserting the bottom cover, rotate the handle 911 to drive the bottom cover and the protrusion three 912 to rotate, so that the protrusion three 912 is engaged with the groove two 913. The threaded rubber ring 813 enhances the engagement stability with its elasticity. The bottom cover can be removed by reversing the rotation of the handle 911.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressureless water supply device with water purification, comprising a flow stabilizing tank (1), characterized in that: The bottom of the stabilizing tank (1) is fixedly connected to a fixing block one (4), and the bottom of the fixing block one (4) is fixedly connected to a fixing block two (14). A permanent magnet (20) is rotatably connected to the inner wall of the fixing block two (14). A shell (15) is fixedly connected to the side of the fixing block two (14) away from the fixing block one (4). A storage battery (16) is fixedly connected to the outside of the shell (15). A rotating shaft one (17) is rotatably connected inside the shell (15). A fixing column (18) is fixedly connected to the outer wall of the rotating shaft one (17). The outer wall of the fixing column (18) is fixedly connected to... A fan blade (19) is attached. A main pipe (5) is fixedly connected to the outer wall of the fixed block (4). Pipe joints (6) are fixedly connected to both ends of the main pipe (5). A primary branch pipe (10) is fixedly connected to the outer wall of the main pipe (5). A secondary branch pipe (11) is fixedly connected to the side of the primary branch pipe (10) away from the main pipe (5). A variable frequency pump (7) is fixedly connected to the outside of the secondary branch pipe (11). A water purification component (8) is provided at the output end of the variable frequency pump (7). A quick disassembly component (9) is provided on the outer wall of the pipe joint (6).

2. The pressureless water supply device with water purification according to claim 1, characterized in that: The water purification component (8) includes a filter housing (801), which is fixedly connected to the outside of the variable frequency pump (7). A filter screen (802) is fixedly connected inside the filter housing (801). A bottom cover (803) is slidably connected to the side of the filter housing (801) away from the variable frequency pump (7). A second filter housing (804) is fixedly connected to the outside of the bottom cover (803). A third fixing block (805) is slidably connected inside the second filter housing (804). The inner wall of the filter housing is fixedly connected to a pleated polypropylene filter element (806). The inner wall of the filter housing is slidably connected to a bottom cover (807). The bottom cover (807) is fixedly connected to the outside of the filter housing (808). The filter housing (808) is fixedly connected to a coconut shell activated carbon (809), a hollow fiber ultrafiltration membrane (810), and an alloy filter material (811). The inner wall of the filter housing (808) is slidably connected to a bottom cover (812). The outer wall of the bottom cover (812) is fixedly connected to a threaded rubber ring (813).

3. The negative pressure-free water supply device with water purification according to claim 2, characterized in that: The quick-release assembly (9) includes an upper half-ring (901), which is snapped onto the outer wall of the pipe joint (6). A lower half-ring (902) is fixedly connected to the bottom of the upper half-ring (901). A protrusion (903) is fixedly connected to the inner wall of the lower half-ring (902). A fixing block (904) is fixedly connected to the outer wall of the upper half-ring (901). A rotating shaft (905) is rotatably connected inside the fixing block (904). Limiting blocks (906) are fixedly connected to both ends of the rotating shaft (905). The upper half-ring (901) and the lower half-ring (902) are connected to each other. An O-ring (907) is fixedly connected between the rings (902). A second protrusion (908) is fixedly connected to the outer wall of the lower half ring (902). A groove (909) is opened on the outer wall of the second protrusion (908). An eccentric handle lock (910) is slidably connected to the top of the second protrusion (908). A handrail (911) is fixedly connected to the side of the bottom cover (803) away from the filter screen (802). A third protrusion (912) is fixedly connected to the outer wall of the bottom cover (803). A groove (913) is opened inside the filter housing (801).

4. The negative pressure-free water supply device with water purification according to claim 1, characterized in that: The variable frequency pump (7) has a secondary diversion pipe (11) fixedly connected to both its input and output ends. The main pipe (5) is fixedly connected to the bottom of the outer shell (15). The stabilizing tank (1) has an inlet (12) at the top and outlets (13) at both ends of the primary diversion pipe (10).

5. A negative pressure-free water supply device with water purification according to claim 1, characterized in that: The top of the flow stabilizer (1) is fixedly connected to a vacuum controller (2), the outer wall of the flow stabilizer (1) is fixedly connected to an electrical control system (3), the fan blades (19) are evenly connected to the outer wall of the fixed column (18), and the permanent magnet (20) is rotatably connected to the inside of the outer shell (15).

6. A negative pressure-free water supply device with water purification according to claim 2, characterized in that: The folded polypropylene filter element (806) is fixedly connected to two ends of a fixing block three (805), and the coconut shell activated carbon (809) is fixedly connected to the hollow fiber ultrafiltration membrane (810) on the side away from the bottom cover three (812).

7. A negative pressure-free water supply device with water purification according to claim 2, characterized in that: The hollow fiber ultrafiltration membrane (810) and the alloy filter media (811) are sequentially fixedly connected to the coconut shell activated carbon (809) on the side away from the bottom cover (807) along the water flow direction.

8. A negative pressure-free water supply device with water purification according to claim 3, characterized in that: The inner walls of the first filter housing (801), the second filter housing (804), and the third filter housing (808) are all provided with grooves (913), and the outer walls of the first bottom cover (803), the second bottom cover (807), and the third bottom cover (812) are all fixedly connected with handrails (911).

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