Non-negative pressure water supply equipment
By introducing a water tank inner wall cleaning device into the negative pressure-free water supply equipment, scale is removed mechanically, solving the problem of needing to disassemble the water tank for cleaning and improving the convenience and efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-17
AI Technical Summary
Existing negative pressure water supply equipment requires disassembly and scale removal from the storage tank after use, which leads to equipment downtime and cleaning inconvenience, affecting normal use.
The design includes a water tank inner wall cleaning device, comprising a rotating shaft, a T-shaped cleaning scraper, a large gear, a drive motor, and an auger, which cleans scale mechanically without disassembling the water tank.
It enables convenient cleaning of scale on the inner wall of the negative pressure water supply equipment, reduces labor intensity and time requirements, and ensures normal use of the equipment.
Smart Images

Figure CN224002022U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of negative pressure-free variable frequency water supply technology, and in particular to a negative pressure-free water supply device. Background Technology
[0002] Current residential water supply systems typically employ two secondary pressurization methods: variable frequency water supply or pressurized pipe network water supply. The secondary pressurization equipment's inlet main pipe is connected to the municipal water network, and the secondary pressurized water outlet main pipe supplies water to the water supply area.
[0003] The currently published patent, CN221645898U, discloses a negative pressure-free water supply device. By horizontally and alternately installing a first float and a second float on the valve handle, the weight of the first and second floats is increased, causing them to float upwards unaffected by air pressure. This improves the sensitivity of the float valve, increases the thrust of the valve handle, effectively improves the venting effect of the valve handle, and further enhances the performance of the negative pressure-free water supply device.
[0004] Based on the above search results, it was found that the water supply equipment needs to store water in a storage tank during use. After a long period of use, a lot of scale will be attached to the inner wall of the storage tank. At this time, the staff needs to disassemble the storage tank to clean the scale from the inside to the outside. Disassembling the storage tank takes a lot of time, which not only affects the normal use of the water supply equipment, but also affects the convenience of cleaning the inner wall of the storage tank. Utility Model Content
[0005] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a negative pressure-free water supply device that can solve the problem that requires workers to disassemble the water tank in order to clean the scale on its inner wall to the outside. The disassembly of the water tank requires a lot of time, which not only affects the normal use of the water supply device, but also affects the convenience of cleaning the inner wall of the water tank.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a negative pressure-free water supply device, including a mounting base and a water tank inner wall cleaning device; a water supply control cabinet is fixedly installed on the top of the mounting base, a pressure stabilizing tank is fixedly connected to the top of the mounting base, and a water supply pipe is fixedly connected to the left end of the pressure stabilizing tank; the water tank inner wall cleaning device includes a rotating shaft, five T-shaped cleaning scrapers, a large gear, a drive motor, and a drive gear, the rotating shaft is rotatably connected inside the pressure stabilizing tank, the five T-shaped cleaning scrapers are all fixedly connected to the surface of the rotating shaft, the five T-shaped cleaning scrapers are all in contact with the inner wall of the pressure stabilizing tank, the right end of the rotating shaft extends to the outside of the pressure stabilizing tank, the large gear is fixedly sleeved on the right end of the rotating shaft, and the drive motor is fixedly installed on the top of the mounting base.
[0007] Preferably, a water pump is fixedly installed on the top of the mounting base, and a water pumping pipe is fixedly installed on the water pumping end.
[0008] Preferably, a drain pipe is fixedly installed at the drain end of the water pump, and the end of the drain pipe away from the water pump is fixedly connected to the top of the pressure stabilizing tank.
[0009] Preferably, the drive gear is fixedly connected to the output end of the drive motor, and the drive gear meshes with the large gear.
[0010] Preferably, a cleaning box is fixedly connected to the surface of the pressure stabilizing tank, and an auger is rotatably connected inside the cleaning box, with the right end of the auger extending to the outside of the cleaning box.
[0011] Preferably, a pinion gear is fixedly sleeved on the right end of the auger, and the pinion gear meshes with the drive gear.
[0012] Preferably, a slag discharge bend is fixedly connected to the left end of the cleaning box, and a storage tank is threaded onto the lower end of the slag discharge bend.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This negative pressure-free water supply equipment eliminates the need for staff to disassemble the pressure stabilizing tank to clean the scale from its inner wall to the outside. This simplifies the process of cleaning the scale inside the pressure stabilizing tank, reduces the labor intensity of staff, and shortens the time required for cleaning the scale inside the pressure stabilizing tank. This not only ensures the normal use of the water supply equipment but also improves the convenience of cleaning the inner wall of the pressure stabilizing tank. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0016] Figure 1 This is a schematic diagram of the overall structure of a negative pressure-free water supply device according to this utility model;
[0017] Figure 2 This is a schematic diagram of the left side structure of a negative pressure-free water supply device according to this utility model;
[0018] Figure 3 This is a schematic diagram of the internal structure of the pressure stabilizing tank of this utility model;
[0019] Figure 4 This is a schematic diagram of the surface structure of the rotating shaft of this utility model.
[0020] Attached reference numerals: 1. Mounting base; 2. Water pump; 3. Pumping pipe; 4. Drain pipe; 5. Water supply control cabinet; 6. Pressure stabilizing tank; 7. Water delivery pipe; 8. Rotating shaft; 9. T-shaped cleaning scraper; 10. Large gear; 11. Drive motor; 12. Drive gear; 13. Cleaning box; 14. Screw auger; 15. Small gear; 16. Slag discharge bend; 17. Storage tank. Detailed Implementation
[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the description of the textual part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0023] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.
[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0025] Please see Figure 1-4This utility model provides a technical solution: a negative pressure-free water supply device, including a mounting base 1 and a water tank inner wall cleaning device. A water pump 2 is fixedly installed on the top of the mounting base 1. A water pump pipe 3 is fixedly installed on the water pump 2's water pump end, and a drain pipe 4 is fixedly installed on the water pump 2's drain end. A water supply control cabinet 5 is fixedly installed on the top of the mounting base 1. A pressure stabilizing tank 6 is fixedly connected to the top of the mounting base 1. The end of the drain pipe 4 away from the water pump 2 is fixedly connected to the top of the pressure stabilizing tank 6. A water delivery pipe 7 is fixedly connected to the left end of the pressure stabilizing tank 6. The water tank inner wall cleaning device includes a rotating... The system comprises a rotating shaft 8, five T-shaped cleaning scrapers 9, a large gear 10, a drive motor 11, and a drive gear 12. The rotating shaft 8 is rotatably connected inside the pressure stabilizing tank 6. The five T-shaped cleaning scrapers 9 are all fixedly connected to the surface of the rotating shaft 8 and all five T-shaped cleaning scrapers 9 are in contact with the inner wall of the pressure stabilizing tank 6. The right end of the rotating shaft 8 extends to the outside of the pressure stabilizing tank 6. The large gear 10 is fixedly sleeved on the right end of the rotating shaft 8. The drive motor 11 is fixedly installed on the top of the mounting base 1. The drive gear 12 is fixedly connected to the output end of the drive motor 11 and meshes with the large gear 10.
[0026] When using this water supply equipment, the operator can start the water pump 2, which draws water through the water pipe 3 and discharges it into the pressure tank 6 through the drain pipe 4. The pressure tank 6 stores water, and the water stored in the pressure tank 6 is regulated by the water supply control cabinet 5. The water in the pressure tank 6 can be discharged to the outside through the water pipe 7. When scale adheres to the inner wall of the pressure tank 6 after long-term use, the operator can start the drive motor 11. The output end of the drive motor 11 rotates, which drives the drive gear 12 to rotate. The rotation of the drive gear 12 drives the large gear 10 and the rotating shaft 8 to rotate simultaneously. The rotation of the rotating shaft 8 drives the five T-shaped cleaning scrapers 9 to rotate simultaneously and clean the scale adhering to the inner wall of the pressure tank 6, preventing scale from adhering to the inner wall of the pressure tank 6 for a long time.
[0027] A cleaning box 13 is fixedly connected to the surface of the pressure stabilizing tank 6. An auger 14 is rotatably connected inside the cleaning box 13. The right end of the auger 14 extends to the outside of the cleaning box 13. A pinion 15 is fixedly sleeved on the right end of the auger 14. The pinion 15 meshes with the drive gear 12. A slag discharge bend 16 is fixedly connected to the left end of the cleaning box 13. A storage tank 17 is threaded onto the lower end of the slag discharge bend 16.
[0028] After the T-shaped cleaning scraper 9 rotates and removes the scale from the inner wall of the pressure tank 6, the scale automatically falls downwards into the cleaning box 13 due to its own gravity. During the rotation of the drive gear 12, the pinion 15 and the auger 14 are simultaneously driven to rotate. The rotation of the auger 14 pushes the scale inside the cleaning box 13 to gradually move to the left. The scale gradually moves to the left and is discharged into the storage tank 17 through the slag discharge bend 16. After the scale on the inner wall of the pressure tank 6 is cleaned, the operator rotates the storage tank 17 to detach it from the lower end of the slag discharge bend 16. The operator can then pour out the scale inside the storage tank 17. The operator no longer needs to disassemble the pressure tank 6 to clean the scale from its inner wall to the outside. This simplifies the convenience of cleaning the scale on the inner wall of the pressure tank 6, reduces the labor intensity of the operator, and reduces the time required for cleaning the scale on the inner wall of the pressure tank 6. This not only ensures the normal use of the water supply equipment but also improves the convenience of cleaning the inner wall of the pressure tank 6.
[0029] Working principle: This negative pressure-free water supply equipment allows operators to start the water pump 2, which draws water through the pumping pipe 3 and discharges it through the drain pipe 4 into the pressure tank 6. The pressure tank 6 stores water, and the water level is regulated by the water supply control cabinet 5. Water can be discharged from the pressure tank 6 to the outside via the water delivery pipe 7. When the operator starts the drive motor 11, the output of the drive motor 11 rotates the drive gear 12, which in turn rotates the large gear 10 and the rotating shaft 8. The rotation of the rotating shaft 8 then drives the five T-shaped cleaning... The scraper 9 rotates simultaneously to clean the scale adhering to the inner wall of the pressure tank 6. The scale automatically falls to the side under its own gravity and into the cleaning box 13. During the rotation of the drive gear 12, the pinion 15 and the auger 14 are driven to rotate. The rotation of the auger 14 pushes the scale inside the cleaning box 13 to gradually move to the left. The scale gradually moves to the left and is discharged into the storage tank 17 through the slag discharge bend 16. After the scale on the inner wall of the pressure tank 6 is cleaned, the operator rotates the storage tank 17 to disengage it from the lower end of the slag discharge bend 16, and the operator can then pour out the scale inside the storage tank 17.
[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A non-negative pressure water supply device, characterized by, Include: The installation base (1) and the water storage tank inner wall cleaning device; The top of the installation base (1) is fixedly provided with a water supply control cabinet (5), and the top of the installation base (1) is fixedly connected with a pressure stabilizing tank (6), and the left end of the pressure stabilizing tank (6) is fixedly connected with a water delivery pipe (7); The water storage tank inner wall cleaning device comprises a rotating shaft (8), five T-shaped cleaning scrapers (9), a large gear (10), a driving motor (11) and a driving gear (12), the rotating shaft (8) is rotatably connected in the interior of the pressure stabilizing tank (6), the five T-shaped cleaning scrapers (9) are all fixedly connected on the surface of the rotating shaft (8), the five T-shaped cleaning scrapers (9) are all in contact with the inner wall of the pressure stabilizing tank (6), the right end of the rotating shaft (8) extends to the outside of the pressure stabilizing tank (6), the large gear (10) is fixedly sleeved on the right end of the rotating shaft (8), and the driving motor (11) is fixedly installed on the top of the installation base (1).
2. The non-negative pressure water supply device according to claim 1, characterized in that: The top of the installation base (1) is fixedly provided with a water pump (2), and the water pump (2) is fixedly provided with a water pump (2).
3. The non-negative pressure water supply device according to claim 2, characterized in that: The drainage end of the water pump (2) is fixedly provided with a drainage pipe (4), and the end of the drainage pipe (4) away from the water pump (2) is fixedly connected to the top of the pressure stabilizing tank (6).
4. The non-negative pressure water supply device according to claim 1, characterized in that: The driving gear (12) is fixedly connected to the output end of the driving motor (11), and the driving gear (12) is engagedly connected with the large gear (10).
5. The non-positive water supply device according to claim 4, characterized in that: The surface of the pressure stabilizing tank (6) is fixedly connected with a cleaning box (13), and the inside of the cleaning box (13) is rotatably connected with an auger (14), and the right end of the auger (14) extends to the outside of the cleaning box (13).
6. The non-positive water supply device according to claim 5, characterized in that: The right end of the auger (14) is fixedly sleeved with a small gear (15), and the small gear (15) is engagedly connected with the driving gear (12).
7. The non-positive water supply device according to claim 6, characterized in that The left end of the cleaning box (13) is fixedly connected with a slag discharge elbow (16), and the lower end of the slag discharge elbow (16) is threadedly installed with a storage tank (17).
Citation Information
Patent Citations
Non-negative pressure water supply equipment
CN221645898U