Non-negative pressure water supply device with cleaning structure
By introducing a cleaning structure into the negative pressure-free water supply equipment, and utilizing the cooperation of connecting shafts, connecting rods, and cleaning frames, the problem of difficult scale removal from the water storage tank is solved, enabling comprehensive scale removal and rapid replacement of filter components, thereby improving the equipment's cleaning efficiency and maintenance convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG CHENFENG GENERATING EQUIP CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-09
AI Technical Summary
Existing negative pressure-free water supply equipment has difficulty cleaning scale in the water storage tank, making it difficult to remove scale effectively.
A negative pressure-free water supply device with a cleaning structure was designed. The connecting shaft drives the connecting rod to slide and the cleaning frame to rotate. Combined with the threaded cleaning plate, the scale is scraped off and discharged through the drain port. At the same time, the threaded slider and clamping plate structure are set to facilitate the quick replacement of the filter components.
It enables thorough cleaning of scale inside the water tank and rapid replacement of filter components, improving the cleaning efficiency and maintenance convenience of the equipment.
Smart Images

Figure CN224338341U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water supply equipment technology, and in particular relates to a negative pressure-free water supply equipment with a cleaning structure. Background Technology
[0002] In my country, drinking water is disinfected using chlorine, chlorine dioxide, and chloramine. However, due to the existence of secondary water supply in urban high-rise residential buildings, the water source provided by the secondary water supply is the same water source that has been disinfected using chlorine, chlorine dioxide, and chloramine. Due to differences in water consumption, the water supply equipment in the secondary water supply will store water for a long time.
[0003] For example, patent CN220266716U discloses a negative pressure-free water supply device with a sterilization structure, including a flow compensator and a water softener body. The flow compensator is equipped with filter elements, which include the water softener body, a first filter screen, a second filter screen, a third filter screen, a turbine blade, and a connecting shaft. The water softener body is installed at the inlet of the flow compensator, and the first, second, and third filter screens are sequentially installed inside the water softener body. This negative pressure-free water supply device with a sterilization structure, through the coordinated use of the water softener body, the first, second, and third filter screens, the turbine blade, and the connecting shaft, can improve water supply quality. Using multiple filter layers effectively reduces suspended solids, heavy metals, and organic pollutants in tap water, thereby improving water quality and ensuring users' needs for healthy drinking water.
[0004] Existing negative pressure-free water supply systems with built-in cleaning mechanisms tend to accumulate scale in the water tank during use, making cleaning difficult. Therefore, we propose a negative pressure-free water supply system with an integrated cleaning mechanism. Utility Model Content
[0005] The purpose of this invention is to address the aforementioned technical problems by providing a negative pressure-free water supply device with a cleaning structure, thereby avoiding the difficulty of cleaning scale from the water storage tank.
[0006] In view of this, the present invention provides a negative pressure-free water supply device with a cleaning structure, including a base, a water storage tank fixedly connected to the top edge of the base, a water inlet installed at the top of the water storage tank, a water outlet installed at the bottom of the water storage tank, a cleaning motor fixedly connected to one end of the water storage tank, a connecting shaft fixedly connected to the output end of the cleaning motor, a connecting rod fixedly connected to one end of the connecting shaft, a cleaning frame fixedly connected to one end of the connecting rod, cleaning plates fixedly connected to the outer walls of both the connecting rod and the cleaning frame, a drain outlet fixedly connected to the bottom edge of the water storage tank, a filter frame connected to one end of the water outlet via a pipe, a water pump connected to the output end of the filter frame via a pipe, and a pipe connected to the output end of the water pump via a pipe network interface.
[0007] Based on the above structure, the connecting shaft rotates, causing the connecting rod to slide along both sides of the water tank to clean the scale on both sides of the water tank. Then, the connecting rod rotates, causing the cleaning plate on the outer wall of the cleaning frame to rotate, scraping off the scale on the inner wall of the water tank. At the same time, the loose scale is discharged from the drain port through the threaded cleaning frame, realizing a comprehensive cleaning operation of the scale in the water tank.
[0008] Preferably, the central axis of the connecting shaft coincides with the central axis of the water tank, and the connecting rod is semi-circular in shape. In this embodiment, it is beneficial for the cleaning motor to drive the connecting shaft to rotate, and the rotation of the connecting shaft to drive the connecting rod to slide along both sides of the water tank to clean the scale on both sides of the water tank.
[0009] Preferably, the cleaning frame is spiral in shape, and the cleaning plate is in close contact with the inner wall of the water tank. In this embodiment, the connecting rod can rotate to drive the cleaning plate on the outer wall of the cleaning frame to rotate, thereby scraping off the scale on the inner wall of the water tank.
[0010] Preferably, the drain outlet coincides with the tangent of the water tank. In this embodiment, the loose scale is discharged from the drain outlet through a threaded cleaning rack, thereby achieving a comprehensive cleaning operation of the scale in the water tank.
[0011] Preferably, a filter assembly is fitted into the inner wall of the filter frame, a filter screen is fixedly connected to the inner wall of the filter assembly, a mounting base is fixedly connected to the top of the filter assembly, a screw is provided on the inner wall of the mounting base, a threaded slider is threadedly connected to the outer wall of the screw, a support rod is screwed to both ends of the threaded slider, a telescopic plate is screwed to one end of the support rod, a retaining plate is fixedly connected to the outer wall of the telescopic plate, and a grooved plate fixedly connected to the top of the filter frame is fitted into the outer wall of the retaining plate. In this embodiment, the filter assembly is embedded in the filter frame, and then the operator rotates the screw, which drives the threaded slider to slide. The sliding of the threaded slider drives the telescopic plate to slide horizontally through the support rod, and the sliding of the telescopic plate causes the retaining plate to engage with the grooved plate, realizing a quick replacement operation of the filter assembly.
[0012] Preferably, the filter screen is provided in three sets, and the three sets of filter screens are distributed at equal intervals along the inner wall of the filter assembly. In this embodiment, by providing three sets of filter screens, it is beneficial to improve the filtration performance of the water source.
[0013] Preferably, the mounting base forms a fixed structure with the filter frame through the clamping plate and the groove plate. In this embodiment, the threaded slider slides through the support rod to drive the telescopic plate to slide horizontally. The sliding of the telescopic plate causes the clamping plate to engage with the groove plate, realizing the quick replacement operation of the filter assembly.
[0014] The beneficial effects of this utility model are:
[0015] 1. This negative pressure-free water supply equipment with a cleaning structure uses a cleaning plate. The rotating connecting shaft drives the connecting rod to slide along both sides of the water tank to clean the scale on both sides of the water tank. Then, the rotating connecting rod drives the cleaning plate on the outer wall of the cleaning frame to rotate, scraping off the scale on the inner wall of the water tank. At the same time, the threaded cleaning frame discharges the loose scale from the drain port, achieving a comprehensive cleaning operation of the scale in the water tank.
[0016] 2. This negative pressure-free water supply equipment with a cleaning structure embeds the filter components into the filter frame by setting up a card plate and a groove plate. Then, the operator rotates the screw, which drives the threaded slider to slide. The sliding of the threaded slider drives the telescopic plate to slide horizontally through the support rod. The sliding of the telescopic plate causes the card plate and the groove plate to engage, realizing the quick replacement of the filter components. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a cross-sectional view of the water storage tank of this utility model;
[0019] Figure 3 This is a schematic diagram of the internal structure of the filter frame of this utility model;
[0020] Figure 4 This is a cross-sectional view of the filter assembly of this utility model.
[0021] The markings in the diagram are as follows:
[0022] 1. Base; 2. Water tank; 3. Inlet; 4. Outlet; 5. Cleaning motor; 6. Connecting shaft; 7. Connecting rod; 8. Cleaning frame; 9. Cleaning plate; 901. Drain outlet; 10. Filter frame; 11. Water pump; 12. Pipeline interface; 13. Filter assembly; 14. Filter screen; 15. Mounting base; 16. Screw; 17. Threaded slider; 18. Support rod; 19. Telescopic plate; 20. Clamping plate; 21. Slot plate. Detailed Implementation
[0023] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.
[0024] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0025] This application discloses a negative pressure-free water supply device with a cleaning structure, including a base 1, a water storage tank 2 fixedly connected to the top edge of the base 1, a water inlet 3 installed at the top of the water storage tank 2, a water outlet 4 installed at the bottom of the water storage tank 2, a cleaning motor 5 fixedly connected to one end of the water storage tank 2, a connecting shaft 6 fixedly connected to the output end of the cleaning motor 5, a connecting rod 7 fixedly connected to one end of the connecting shaft 6, a cleaning frame 8 fixedly connected to one end of the connecting rod 7, cleaning plates 9 fixedly connected to the outer walls of both the connecting rod 7 and the cleaning frame 8, a drain outlet 901 fixedly connected to the bottom edge of the water storage tank 2, a filter frame 10 connected to one end of the water outlet 4, a water pump 11 connected to the output end of the filter frame 10, and a pipe network interface 12 connected to the output end of the water pump 11.
[0026] Based on the above structure, the connecting shaft 6 rotates, causing the connecting rod 7 to slide along both sides of the water tank 2 to clean the scale on both sides of the water tank 2. Then, the connecting rod 7 rotates, causing the cleaning plate 9 on the outer wall of the cleaning frame 8 to rotate, scraping off the scale on the inner wall of the water tank 2. At the same time, the scale that has fallen off is discharged from the drain port 901 through the threaded cleaning frame 8, thus realizing a comprehensive cleaning operation of the scale in the water tank 2.
[0027] In one embodiment, the central axis of the connecting shaft 6 coincides with the central axis of the water tank 2, and the connecting rod 7 is semi-circular in shape.
[0028] In this embodiment, it is beneficial for the motor 5 to work and drive the connecting shaft 6 to rotate. The rotation of the connecting shaft 6 causes the connecting rod 7 to slide along both sides of the water tank 2, thereby cleaning the scale on both sides of the water tank 2.
[0029] In one embodiment, the cleaning rack 8 is spiral in shape, and the cleaning plate 9 is tightly fitted to the inner wall of the water tank 2.
[0030] In this embodiment, the connecting rod 7 rotates to drive the cleaning plate 9 on the outer wall of the cleaning frame 8 to rotate, thereby scraping off the scale on the inner wall of the water tank 2.
[0031] In one embodiment, the drain outlet 901 coincides with the tangent of the water storage tank 2.
[0032] In this embodiment, the scale that has fallen off is discharged from the drain port 901 through the threaded cleaning frame 8, thereby achieving a comprehensive cleaning operation of the scale in the water storage tank 2.
[0033] In one embodiment, a filter assembly 13 is fitted into the inner wall of the filter frame 10, a filter screen 14 is fixedly connected to the inner wall of the filter assembly 13, a mounting base 15 is fixedly connected to the top of the filter assembly 13, a screw 16 is provided on the inner wall of the mounting base 15, a threaded slider 17 is threadedly connected to the outer wall of the screw 16, a support rod 18 is screwed to both ends of the threaded slider 17, a telescopic plate 19 is screwed to one end of the support rod 18, a clamping plate 20 is fixedly connected to the outer wall of the telescopic plate 19, and a groove plate 21 fixedly connected to the top of the filter frame 10 is fitted into the outer wall of the clamping plate 20.
[0034] In this embodiment, the filter assembly 13 is embedded in the filter frame 10. Then, the operator rotates the screw 16, which drives the threaded slider 17 to slide. The sliding of the threaded slider 17 drives the telescopic plate 19 to slide horizontally through the support rod 18. The sliding of the telescopic plate 19 causes the clamping plate 20 to engage with the slot plate 21, thereby realizing the quick replacement operation of the filter assembly 13.
[0035] In one embodiment, the filter 14 is provided in three sets, which are equidistantly distributed along the inner wall of the filter assembly 13.
[0036] In this embodiment, by setting three sets of filter screens 14, the filtration performance of the water source can be improved.
[0037] In one embodiment, the mounting base 15 is fixed to the filter frame 10 via the clamping plate 20 and the slot plate 21.
[0038] In this embodiment, the threaded slider 17 slides through the support rod 18 to drive the telescopic plate 19 to slide horizontally. The sliding of the telescopic plate 19 causes the clamping plate 20 to engage with the slot plate 21, thereby realizing the quick replacement operation of the filter assembly 13.
[0039] In this embodiment, the negative pressure-free water supply equipment with a cleaning structure is used as follows: First, the water source is pumped into the water storage tank 2 through the water inlet interface 3 for water storage. Then, the water pump 11 pumps the water source in the water storage tank 2 into the filter frame 10. The water source is filtered through the three sets of filter screens 14 inside the filter assembly 13. Finally, the water source is pumped into the pipeline network through the pipeline interface 12 to achieve negative pressure-free water supply.
[0040] Next, the scale on the inner wall of the water tank 2 is cleaned. The cleaning motor 5 drives the connecting shaft 6 to rotate, and the rotation of the connecting shaft 6 drives the connecting rod 7 to slide along both sides of the water tank 2 to clean the scale on both sides of the water tank 2. Then, the rotation of the connecting rod 7 drives the cleaning plate 9 on the outer wall of the cleaning frame 8 to rotate, scraping off the scale on the inner wall of the water tank 2. At the same time, the scale that has fallen off is discharged from the drain port 901 through the threaded cleaning frame 8, realizing a comprehensive cleaning operation of the scale in the water tank 2.
[0041] Finally, the filter screen 14 is replaced by inserting the filter assembly 13 into the filter frame 10. Then, the operator rotates the screw 16, which drives the threaded slider 17 to slide. The sliding of the threaded slider 17 drives the telescopic plate 19 to slide horizontally through the support rod 18. The sliding of the telescopic plate 19 causes the clamping plate 20 to engage with the slot plate 21, thus realizing the quick replacement of the filter assembly 13.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A negative pressure-free water supply device with a cleaning structure, characterized in that, The system includes a base (1), a water tank (2) fixedly connected to the top edge of the base (1), a water inlet (3) installed at the top of the water tank (2), a water outlet (4) installed at the bottom of the water tank (2), a cleaning motor (5) fixedly connected to one end of the water tank (2), a connecting shaft (6) fixedly connected to the output end of the cleaning motor (5), a connecting rod (7) fixedly connected to one end of the connecting shaft (6), a cleaning frame (8) fixedly connected to one end of the connecting rod (7), a cleaning plate (9) fixedly connected to the outer wall of both the connecting rod (7) and the cleaning frame (8), a drain outlet (901) fixedly connected to the bottom edge of the water tank (2), a filter frame (10) connected to one end of the water outlet (4), a water pump (11) connected to the output end of the filter frame (10), and a pipe network interface (12) connected to the output end of the water pump (11).
2. The negative pressure-free water supply equipment with a cleaning structure according to claim 1, characterized in that: The central axis of the connecting shaft (6) coincides with the central axis of the water tank (2), and the connecting rod (7) has a semi-circular shape.
3. The negative pressure-free water supply equipment with a cleaning structure according to claim 1, characterized in that: The cleaning rack (8) is spiral in shape, and the cleaning plate (9) is tightly fitted to the inner wall of the water tank (2).
4. The negative pressure-free water supply equipment with a cleaning structure according to claim 1, characterized in that: The drain outlet (901) coincides with the tangent of the water storage tank (2).
5. The negative pressure-free water supply equipment with a cleaning structure according to claim 1, characterized in that: The filter frame (10) has a filter assembly (13) fitted into its inner wall. A filter screen (14) is fixedly connected to the inner wall of the filter assembly (13). A mounting base (15) is fixedly connected to the top of the filter assembly (13). A screw (16) is provided on the inner wall of the mounting base (15). A threaded slider (17) is threadedly connected to the outer wall of the screw (16). A support rod (18) is screwed to both ends of the threaded slider (17). A telescopic plate (19) is screwed to one end of the support rod (18). A clamping plate (20) is fixedly connected to the outer wall of the telescopic plate (19). A groove plate (21) fixedly connected to the top of the filter frame (10) is fitted into the outer wall of the clamping plate (20).
6. The negative pressure-free water supply equipment with a cleaning structure according to claim 5, characterized in that: The filter screen (14) is provided in three sets, and the three sets of filter screens (14) are equidistantly distributed along the inner wall of the filter assembly (13).
7. The negative pressure-free water supply equipment with a cleaning structure according to claim 5, characterized in that: The mounting base (15) forms a fixed structure with the filter frame (10) through the clamping plate (20) and the slot plate (21).