Backwashing device of non-negative pressure water supply equipment

Abstract

The utility model provides a backwashing device of non-negative pressure water supply equipment, which relates to the technical field of water supply equipment and comprises a water supply tank, a first partition plate and a second partition plate are respectively arranged at the top and the bottom of the inner side of the water supply tank, a filter component is arranged between the first partition plate and the second partition plate, and the filter component is annular. Two movable grooves are symmetrically formed in the inner wall, threaded rods are installed in the two movable grooves, and the bottom ends of the two threaded rods are rotationally connected with the second partition plate; according to the utility model, through the arrangement of the scraping ring and the brush ring, before the filter screen of the non-negative pressure water supply equipment is backwashed, impurities on the inner side of the filter screen can be brushed off through the rotating brush ring, and then the impurities on the inner side of the filter screen are scraped off through the scraping ring, so that the mass of the impurities on the inner side of the filter screen is effectively reduced; therefore, the water consumption in the backwashing process is reduced, and dead angles in the backwashing process are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of water supply equipment, in particular to a backwashing device for non-negative pressure water supply equipment. Background Art

[0002] Non-negative pressure water supply equipment is a secondary pressurized water supply equipment in which the pressurized water supply unit is directly connected to the municipal water supply network, and the water is supplied in series and superimposed on the residual pressure of the municipal network to ensure that the pressure of the municipal network is not less than the set protection pressure.

[0003] In the non-negative pressure water supply equipment, a backwashing device is provided, which is mainly used to flush the cleaning liquid from the water outlet to the water inlet to clean the sediment accumulated inside the filter. However, cleaning the inside of the filter only by backwashing not only consumes a lot of water, but also some dead corners inside the filter are difficult to be thoroughly flushed.

[0004] Therefore, the utility model provides a backwashing device for non-negative pressure water supply equipment to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a backwashing device for non-negative pressure water supply equipment to solve the problems of large water consumption and incomplete cleaning in the prior art for backwashing non-negative pressure water supply equipment.

[0006] A backwashing device for a non-negative pressure water supply equipment comprises a water supply tank, wherein a first partition and a second partition are respectively arranged at the top and the bottom of the inner side of the water supply tank, a filter assembly is arranged between the first partition and the second partition, the filter assembly is annular in style, and two movable grooves are symmetrically arranged on the inner wall, threaded rods are installed inside the two movable grooves, the bottom ends of the two threaded rods are rotatably connected to the second partition, the second partition is provided with a through groove inside the filter assembly, a fixing frame is installed inside the through groove, a spline shaft is rotatably installed on the top of the fixing frame, and the top ends of the spline shaft and the threaded rod both penetrate the first partition , and one end thereof is respectively connected with the first gear and the second gear, and the two second gears are meshed with the first gear, and the surface of the threaded rod located in the movable groove is provided with a movable block, and the opposite sides of the two movable blocks are commonly connected with a scraper ring on the inner side of the filter assembly, and a movable frame is arranged on the inner side of the scraper ring, and a spline sleeve is rotatably installed in the middle part of the movable frame, and the spline sleeve is sleeved on the surface of the spline shaft, and the bottom end of the spline sleeve passes through the bottom of the movable frame, and the end thereof is connected with a rotating frame, and a brush ring is arranged on the outer side of the rotating frame, and a plurality of brush plates are arranged in an array on the outer surface of the brush ring.

[0007] Furthermore, the movable block is threadedly connected to the threaded rod.

[0008] Furthermore, the spline shaft and the spline sleeve are meshed and connected.

[0009] Furthermore, the brush plates are all arranged obliquely.

[0010] Furthermore, a motor is fixedly mounted on the top of the water supply tank, and an output end of the motor penetrates into the water supply tank and is transmission-connected to the first gear.

[0011] Furthermore, a water supply inlet pipe and a backwash drain pipe are provided at the bottom of the water supply tank, and a backwash inlet pipe and a water supply outlet pipe are provided on the surface of the water supply tank between the first partition plate and the second partition plate.

[0012] Furthermore, a plurality of supporting feet are evenly arranged on the bottom of the water supply tank.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model provides a scraper ring and a brush ring, and before backwashing the filter screen of the non-negative pressure water supply equipment, the impurities on the inner side of the filter screen can be brushed off by the rotating brush ring, and then the impurities on the inner side of the filter screen can be scraped off by the scraper ring, thereby effectively reducing the amount of impurities on the inner side of the filter screen, thereby reducing the water consumption during the backwashing process and reducing the dead angles in the backwashing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the utility model;

[0017] Figure 3 It is a schematic plan cross-sectional view of the utility model;

[0018] Figure 4 It is a three-dimensional schematic diagram of a partial structure of the utility model;

[0019] Figure 5 This utility model Figure 2 A local enlarged schematic diagram of point B in the middle.

[0020] In the figure:

[0021] 1. Water supply tank; 2. First baffle; 3. Second baffle; 4. Filter assembly; 5. Movable groove; 6. Threaded rod; 7. Through groove; 8. Fixed frame; 9. Spline shaft; 10. First gear; 11. Second gear; 12. Movable block; 13. Scraper ring; 14. Movable frame; 15. Spline sleeve; 16. Rotating frame; 17. Brush ring; 18. Brush plate; 19. Motor; 20. Water supply inlet pipe; 21. Backwash drain pipe; 22. Backwash inlet pipe; 23. Water supply outlet pipe; 24. Support foot. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0023] like Figure 1-5 As shown, the utility model provides a backwashing device for a non-negative pressure water supply equipment, including a water supply tank 1, a first partition 2 and a second partition 3 are respectively arranged on the top and bottom of the inner side of the water supply tank 1, a filter assembly 4 is arranged between the first partition 2 and the second partition 3, the filter assembly 4 can filter the water flow passing through the water supply tank 1, the filter assembly 4 is annular, and two movable grooves 5 are symmetrically arranged on the inner wall, threaded rods 6 are installed inside the two movable grooves 5, the bottom ends of the two threaded rods 6 are rotatably connected to the second partition 3, the second partition 3 is provided with a through groove 7 on the inner side of the filter assembly 4, a fixing frame 8 is installed on the inner side of the through groove 7, a spline shaft 9 is rotatably installed on the top of the fixing frame 8, the spline shaft 9 and the top ends of the threaded rod 6 both penetrate the first partition 2, and the penetrated ends are respectively connected to the first gear 10 and the second gear 11, the two The second gears 11 are meshed and connected with the first gears 10, and the first gear 10 can drive the two second gears 11 to rotate. The surface of the threaded rod 6 located in the inner part of the movable groove 5 is covered with a movable block 12, and the opposite sides of the two movable blocks 12 are connected to a scraper ring 13 on the inner side of the filter assembly 4. During the downward movement of the scraper ring 13, the impurities on the inner wall of the filter assembly 4 can be scraped off. A movable frame 14 is arranged on the inner side of the scraper ring 13, and a spline sleeve 15 is rotatably installed in the middle part of the movable frame 14, and the spline sleeve 15 is mounted on the surface of the spline shaft 9. The bottom end of the spline sleeve 15 passes through the bottom of the movable frame 14, and the protruding end is connected to a rotating frame 16. A brush ring 17 is arranged on the outer side of the rotating frame 16, and a plurality of brush plates 18 are arranged in an array on the outer surface of the brush ring 17. The brush plate 18 is used to brush off the impurities on the inner wall of the filter assembly 4.

[0024] The movable block 12 is threadedly connected to the threaded rod 6 , and during the rotation of the threaded rod 6 , the movable block 12 can be driven to move up and down.

[0025] The spline shaft 9 is meshed with the spline sleeve 15 so that the spline shaft 9 can drive the spline sleeve 15 to rotate.

[0026] The brush plates 18 are all arranged obliquely. When the brush ring 17 rotates, the obliquely arranged brush plates 18 are more conducive to brushing off impurities on the inner wall of the filter assembly 4.

[0027] Among them, a motor 19 is fixedly installed on the top of the water supply tank 1, and the output end of the motor 19 penetrates into the water supply tank 1 and is transmission-connected with the first gear 10, and the motor 19 is used to drive the first gear 10 to rotate.

[0028] Among them, a water supply inlet pipe 20 and a backwash drain pipe 21 are arranged at the bottom of the water supply tank 1, and a backwash inlet pipe 22 and a water supply outlet pipe 23 are respectively arranged on the surface of the water supply tank 1 between the first partition 2 and the second partition 3. The water flow in the water supply system enters from the water supply inlet pipe 20 and is discharged from the water supply outlet pipe 23. The water flow for backwashing the filter component 4 inside the water supply tank 1 enters from the backwash inlet pipe 22 and is discharged from the backwash drain pipe 21.

[0029] Among them, a plurality of supporting feet 24 are evenly arranged at the bottom of the water supply tank 1, and the supporting feet 24 are used to provide support and fixation for the utility model.

[0030] Specific working principle:

[0031] Before using the utility model, first connect the utility model to an external power supply and a control panel, and connect the utility model to a water supply system. During the use of the utility model, the water in the water supply system enters the water supply tank 1 through the water supply inlet pipe 20, and then enters the inner side of the filter assembly 4 from the inner side of the through groove 7 of the first partition plate 2. In the process of passing through the filter assembly 4, the water is filtered to remove larger impurities in the water path and then discharged from the water supply outlet pipe 23. When there are many impurities accumulated inside the filter assembly 4, the motor 19 in the utility model is started through the external control panel to drive the first gear 10 to rotate, thereby rotating the spline shaft 9. The spline shaft 9 drives the spline sleeve 15 to rotate, thereby rotating the rotating frame 16 and the brush ring 17 outside the rotating frame 16. When the brush ring 17 rotates, it drives the brush plate 18 on its surface to rotate, and the brush plate 18 set obliquely is used to brush the inner wall of the filter assembly 4. The impurities are brushed off. At the same time, the first gear 10 will drive the second gear 11 to rotate, and the second gear 11 will drive the threaded rod 6 to rotate. The threaded rod 6 will drive the movable block 12 threadedly connected thereto to move in the movable groove 5, thereby realizing the lifting and lowering of the movable block 12. The movable frame 14 is driven by the movable block 12 to move from top to bottom. During the movement, the brush ring 17 can comprehensively clean the inside of the filter component 4. At the same time, the scraper ring 13 on the outside of the movable frame 14 can scrape off the impurities brushed off by the brush ring 17, thereby cleaning most of the impurities on the inside of the filter component 4, saving the amount of water required for the backwashing process, and then the movable frame 14 returns to the top of the filter component 4. At the same time, the backwash water flow enters the water supply tank 1 from the backwashing water inlet pipe 22, and enters the inside of the filter component 4 from the outside of the filter component 4 to backwash the filter component 4, thereby further cleaning the impurities remaining in the filter component 4.

[0032] The implementation modes of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A backwashing device for non-negative pressure water supply equipment, characterized in that: The invention comprises a water supply tank (1), wherein the top and bottom of the inner side of the water supply tank (1) are respectively provided with a first partition (2) and a second partition (3), a filter assembly (4) is provided between the first partition (2) and the second partition (3), the filter assembly (4) is annular in shape, and two movable grooves (5) are symmetrically provided on the inner wall, threaded rods (6) are installed inside the two movable grooves (5), the bottom ends of the two threaded rods (6) are rotatably connected to the second partition (3), the second partition (3) is provided with a through groove (7) on the inner side of the filter assembly (4), a fixing frame (8) is installed inside the through groove (7), a spline shaft (9) is rotatably installed on the top of the fixing frame (8), the top ends of the spline shaft (9) and the threaded rod (6) both pass through the first partition (2), and the ends passing through are respectively connected to a first gear ( 10) and a second gear (11), the two second gears (11) are meshed and connected with the first gear (10), the surface of the threaded rod (6) located in the inner part of the movable groove (5) is sleeved with a movable block (12), the opposite sides of the two movable blocks (12) are commonly connected with a scraper ring (13) on the inner side of the filter assembly (4), a movable frame (14) is arranged on the inner side of the scraper ring (13), a spline sleeve (15) is rotatably installed in the middle part of the movable frame (14), and the spline sleeve (15) is sleeved on the surface of the spline shaft (9), the bottom end of the spline sleeve (15) passes through the bottom of the movable frame (14), and the protruding end is connected to a rotating frame (16), a brush ring (17) is arranged on the outer side of the rotating frame (16), and a plurality of brush plates (18) are arranged in an array on the outer surface of the brush ring (17).

2. The backwashing device of the non-negative pressure water supply equipment according to claim 1, characterized in that: The movable block (12) is threadedly connected to the threaded rod (6).

3. The backwashing device of the non-negative pressure water supply equipment according to claim 1, characterized in that: The spline shaft (9) is meshingly connected with the spline sleeve (15).

4. The backwashing device of the non-negative pressure water supply equipment according to claim 1, characterized in that: The brush plates (18) are all arranged obliquely.

5. The backwashing device of the non-negative pressure water supply equipment according to claim 1, characterized in that: A motor (19) is fixedly mounted on the top of the water supply tank (1), and an output end of the motor (19) penetrates into the water supply tank (1) and is transmission-connected to the first gear (10).

6. The backwashing device of the non-negative pressure water supply equipment according to claim 1, characterized in that: A water supply inlet pipe (20) and a backwash drain pipe (21) are arranged at the bottom of the water supply tank (1), and a backwash inlet pipe (22) and a water supply outlet pipe (23) are respectively arranged on the surface of the water supply tank (1) between the first partition plate (2) and the second partition plate (3).

7. The backwashing device of the non-negative pressure water supply equipment according to claim 1, characterized in that: A plurality of supporting feet (24) are evenly arranged on the bottom of the water supply tank (1).

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