Sewage treatment device with backwashing protection function

Abstract

The utility model discloses a sewage treatment device with a backflushing protection function, which comprises a treatment box and a filter screen cover, the filter screen cover is rotatably arranged in the treatment box, and the utility model relates to the technical field of sewage treatment. According to the sewage treatment device with the backflushing protection function, the water pump is arranged on one side of the treatment box, the spraying pipe connected with the water pump is arranged at the bottom of the filter screen cover, and the driving mechanism is arranged between the water pump and the filter screen cover, so that the filter screen cover can filter sewage through cooperation of the spraying pipe and the driving mechanism during sewage filtration; secondly, a shifting plate is arranged between the treatment box and the filter screen cover, so that impurities stacked in the filter screen cover can be concentrated to one position by matching with the shifting plate in the rotary blockage dredging period of the filter screen cover, the filter surface is exposed, and the blockage dredging effect is improved. Impurities are prevented from covering the filter holes.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment device with backwash protection. Background Art

[0002] Sewage treatment usually involves pre-coarse filtration of sewage to reduce the retention of solid impurities in the water. In order to facilitate the separation of solid impurities, it is inevitable to use a sewage treatment device. When separating solid impurities, the sewage treatment device usually uses a filter screen.

[0003] Although this method can achieve the effect of separating sewage and solid impurities, it is inevitable that there are still some shortcomings in its actual use. For example, the device lacks a recoil mechanism, so that impurities are easily blocked in the filter holes of the filter screen, resulting in a decrease in the filtering capacity of the filter screen. In order to avoid such problems, a sewage treatment device with recoil protection is proposed to solve the existing problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a sewage treatment device with backwash protection, which solves the problem that filter holes of a filter screen plate in the sewage treatment device are prone to clogging.

[0005] To achieve the above purpose, the utility model is implemented through the following technical scheme: a sewage treatment device with backwash protection, including a treatment box and a filter screen cover, the filter screen cover is rotatably arranged inside the treatment box, one side of the treatment box is fixedly connected to a water pump through a bracket, the inlet end of the water pump is connected to a water inlet pipe, the outlet end of the water pump is connected to a spray pipe used in conjunction with the filter screen cover, and the spray pipe extends to the interior of the treatment box, and a driving mechanism is arranged between the water pump and the filter screen cover.

[0006] Preferably, the driving mechanism includes a rotating rod, which is rotatably arranged on one side of the processing box through a bearing, the top of the rotating rod is fixedly connected to a gear, the outer surface of the filter cover is fixedly connected to a gear ring meshing with the gear, the surface of the rotating rod and the surface of the water pump output shaft are both fixedly connected to bevel gears, and the two bevel gears are meshed with each other.

[0007] Preferably, a sliding sleeve is fixedly connected to the other side of the processing box, and a sliding column is slidably arranged inside the sliding sleeve.

[0008] Preferably, a paddle is fixedly connected to one side of the slide column and located inside the filter screen cover.

[0009] Preferably, an annular slide groove is formed on the inner surface of the processing box, and an annular slip ring slidably matched with the annular slide groove is fixedly connected to the outer surface of the filter screen cover.

[0010] Preferably, the bottom of the processing box is connected to a lower discharge pipe.

[0011] Beneficial Effects

[0012] The utility model provides a sewage treatment device with backwash protection. Compared with the existing technology, the utility model has the following beneficial effects: the utility model provides a water pump on one side of the treatment box and a spray pipe connected to the water pump at the bottom of the filter screen cover, and provides a driving mechanism between the water pump and the filter screen cover, so that during the filtering of sewage, the filter screen cover can cooperate with the spray pipe and the driving mechanism to promote the filter holes at the bottom of the filter screen cover to be fully high-pressure washed to achieve the effect of unblocking, and secondly, a paddle is provided between the treatment box and the filter screen cover, so that during the rotation of the filter screen cover to unblock, the filter screen cover can cooperate with the paddle to promote the impurities stacked inside the filter screen cover to be concentrated to one place, thereby exposing the filter surface, avoiding the problem that the impurities cover the filter holes inside the filter screen cover, resulting in a decrease in filtering capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the processing box structure of the utility model;

[0015] Figure 3 It is an expanded view of the sliding sleeve and sliding column structure of the utility model.

[0016] In the figure: 1. treatment box; 2. filter screen; 3. water pump; 4. water inlet pipe; 5. spray pipe; 6. driving mechanism; 7. rotating rod; 8. gear; 9. gear ring; 10. bevel gear; 11. sliding sleeve; 12. sliding column; 13. paddle; 14. annular slide groove; 15. annular slip ring; 16. lower discharge pipe. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] See also Figure 1-3The utility model provides a technical solution: a sewage treatment device with backwash protection, comprising a treatment box 1 and a filter screen cover 2, the filter screen cover 2 is rotatably arranged inside the treatment box 1, the inner surface of the treatment box 1 is provided with an annular slide groove 14, the outer surface of the filter screen cover 2 is fixedly connected with an annular slip ring 15 that slidably cooperates with the annular slide groove 14, the bottom of the treatment box 1 is connected with a lower discharge pipe 16, one side of the treatment box 1 is fixedly connected with a water pump 3 through a bracket, the inlet end of the water pump 3 is connected with a water inlet pipe 4, the outlet end of the water pump 3 is connected with a spray pipe 5 used in conjunction with the filter screen cover 2, and the spray pipe 5 extends to the inside of the treatment box 1.

[0019] Furthermore, in order to facilitate the full backwashing and unblocking of the filter holes at the bottom of the filter screen cover 2, a driving mechanism 6 is arranged between the water pump 3 and the filter screen cover 2. The driving mechanism 6 includes a rotating rod 7, and the rotating rod 7 is rotatably arranged on one side of the treatment box 1 through a bearing. The top of the rotating rod 7 is fixedly connected to a gear 8, and the outer surface of the filter screen cover 2 is fixedly connected to a gear ring 9 meshing with the gear 8. The surface of the rotating rod 7 and the surface of the output shaft of the water pump 3 are both fixedly connected to bevel gears 10, and the two bevel gears 10 are meshed with each other.

[0020] Furthermore, in order to avoid the problem that the filter holes of the filter cover 2 will be covered by impurities due to the accumulation of impurities, resulting in poor water filtering, a sliding sleeve 11 is fixedly connected to the other side of the processing box 1, and a sliding column 12 is slidingly arranged inside the sliding sleeve 11. A paddle 13 is fixedly connected to one side of the sliding column 12 and located inside the filter cover 2.

[0021] When in use, as the filter screen cover 2 filters the sewage, impurities will be blocked in the filter holes of the filter screen cover 2. At this time, the water pump 3 is started, and the water pump 3 starts to absorb external water through the water inlet pipe 4, and supplies the water source to the spray pipe 5, and the water is sprayed out at high pressure from the spray hole on the top of the spray pipe 5, and the sprayed water source flushes the filter holes at the bottom of the filter screen cover 2. During the start-up of the water pump 3, its output shaft drives the bevel gear 10 to rotate, and through the meshing of two adjacent bevel gears 10, the rotating rod 7 is driven to rotate. The rotation of the rotating rod 7 drives the gear 8 to mesh with the gear ring 9, so that the gear ring 9 drives the filter screen cover 2 to rotate slowly in a circle. The filter screen cover 2 rotates and its bottom filter hole continuously cooperates with the water source sprayed from the spray pipe 5 for backwashing and unblocking. Secondly, during the rotation of the filter screen cover 2, due to the fixed-point installation of the paddle plate 13, the impurities trapped in the filter screen cover 2 will be concentrated to one place by the paddle plate 13, leaving a relatively smooth filtering surface for the filter screen cover 2 to avoid being covered by impurities.

Claims

1. A sewage treatment device with backwash protection, comprising a treatment box (1) and a filter screen (2), wherein the filter screen (2) is rotatably arranged inside the treatment box (1), characterized in that: A water pump (3) is fixedly connected to one side of the treatment box (1) via a bracket, the inlet end of the water pump (3) is connected to a water inlet pipe (4), the outlet end of the water pump (3) is connected to a spray pipe (5) used in conjunction with the filter screen cover (2), and the spray pipe (5) extends to the interior of the treatment box (1), and a driving mechanism (6) is provided between the water pump (3) and the filter screen cover (2).

2. A sewage treatment device with backwash protection according to claim 1, characterized in that: The driving mechanism (6) comprises a rotating rod (7), the rotating rod (7) being rotatably arranged on one side of the processing box (1) via a bearing, the top of the rotating rod (7) being fixedly connected to a gear (8), the outer surface of the filter screen cover (2) being fixedly connected to a gear ring (9) meshing with the gear (8), the surface of the rotating rod (7) and the surface of the output shaft of the water pump (3) being fixedly connected to a bevel gear (10), and the two bevel gears (10) being meshed with each other.

3. A sewage treatment device with backwash protection according to claim 1, characterized in that: A sliding sleeve (11) is fixedly connected to the other side of the processing box (1), and a sliding column (12) is slidably arranged inside the sliding sleeve (11).

4. A sewage treatment device with backwash protection according to claim 3, characterized in that: A shift plate (13) is fixedly connected to one side of the slide column (12) and is located inside the filter screen cover (2).

5. A sewage treatment device with backwash protection according to claim 1, characterized in that: The inner surface of the processing box (1) is provided with an annular sliding groove (14), and the outer surface of the filter screen cover (2) is fixedly connected with an annular sliding ring (15) which is slidably matched with the annular sliding groove (14).

6. A sewage treatment device with backwash protection according to claim 1, characterized in that: The bottom of the processing box (1) is connected to a lower discharge pipe (16).

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