V-shaped filter tank for sewage treatment
By designing a water spray pipe and a rotating ring structure inside the support pipe in the V-shaped filter, the problem of the small backwashing range of the water spray pipe is solved, achieving full coverage cleaning of the bottom of the filter and protection of the water spray holes, thus improving the filter's performance and stability.
Patent Information
- Application Number
- CN202520655339.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-09
AI Technical Summary
The existing V-type filter's spray pipes have a small backwashing range after the protection is removed, making it impossible to thoroughly clean the bottom of the filter and affecting its performance.
The design incorporates a water spray pipe and a rotating ring structure within the support tube. The opening and closing of the cover plate is controlled by a drive mechanism to ensure that the water spray holes are connected to the strip holes, achieving comprehensive backwashing and protecting the water spray holes from clogging when not in use.
It achieves comprehensive backwashing of the bottom of the filter bed, improves the filter bed's performance and stability, prevents the spray nozzles from clogging, and ensures the normal operation of the filter bed.
Smart Images

Figure CN223887489U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of V-type filter technology, specifically to a V-type filter for wastewater treatment. Background Technology
[0002] V-type filters are a common type of rapid filter, named for their unique V-shaped inlet design. The bottom of the filter can be backwashed, ensuring continuous and stable filtration. For example, patent document CN220142777U discloses a V-type filter for wastewater treatment. When cleaning the filter plates, the electromagnet is energized, causing two sliding rings to slide away from each other on the surface of the spray pipe. The sliding rings then retract the telescopic rod, fully exposing the spray pipe. The water pump is then turned on, spraying water through the spray pipe to the bottom of the filter plates. Simultaneously, the drive rod rotates the spray pipe, cleaning the bottom of the filter plates as it rotates, preventing filter residue from clogging the bottom and affecting the filtration effect. After cleaning, the electromagnet is de-energized, and the two sliding rings slide closer together under the spring force. The sliding rings also clean impurities on the surface of the spray pipe as they slide, preventing blockage and ensuring effective cleaning.
[0003] However, the aforementioned spray pipes are protected by the telescopic rods, but the initial length of the telescopic rods is relatively long, resulting in a limited spray range provided to the spray pipes after the two telescopic rods extend and retract. This makes it impossible to perform a comprehensive backwash of the bottom of the filter, thus reducing the effectiveness of the filter. Utility Model Content
[0004] In view of the problems existing in the V-type filter for sewage treatment, this utility model is proposed.
[0005] Therefore, the purpose of this utility model is to provide a V-shaped filter for sewage treatment, which solves the problem that the backwashing range of the bottom spray pipe of the filter is small after the protection is removed, making it inconvenient to perform a more comprehensive backwashing of the bottom of the filter.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A V-shaped filter for wastewater treatment includes a V-shaped trough disposed inside the trough, a support pipe at the bottom of each of the V-shaped troughs, a strip-shaped hole in the wall of the support pipe, a water spray pipe inside the support pipe, and a plurality of spaced water spray holes in the wall of the water spray pipe, the water spray holes and the strip-shaped holes being on the same vertical line.
[0008] The support pipe has a rotating ring rotatably fitted on its wall. The side wall of the rotating ring is fixedly fitted with a cover plate, which extends into the support pipe and cooperates with the multiple water spray holes.
[0009] Preferably, the outer walls of both rotating rings are fixedly fitted with spherical gears, and the outer walls of the two spherical gears are jointly fitted with a drive rack. The drive rack is provided with a drive mechanism for driving the drive rack to move.
[0010] Preferably, the driving mechanism includes a driving screw, and two symmetrically arranged mounting plates are fixedly provided on the outer wall of the groove. The driving screw is rotatably disposed within the two mounting plates. The end of the driving screw passes through the mounting plate and is fixedly fitted with a rotating block. The driving screw is threaded through the inside of the driving rack.
[0011] Preferably, a guide plate is fixedly provided on the side of the drive rack, and the end of the guide plate is in contact with the outer wall of the groove.
[0012] Furthermore, both sides of the inner wall of the strip-shaped hole are angled.
[0013] Preferably, the swivel ring is rotatably engaged with the support tube via its internal rotating bearing.
[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0015] This utility model, through the provided tank, V-shaped groove, support pipe, spray pipe, strip hole, swivel ring and cover plate, can ensure that the spray nozzle has a sufficiently long spray backwash range, while covering and protecting the spray holes on the pipe wall to prevent clogging, thus improving the use effect of the filter.
[0016] This utility model, through the provided rotating ring, cover plate, spur gear, drive rack and drive mechanism, enables multiple cover plates to rotate simultaneously to open the strip hole, ensuring the stable operation of backwashing inside the filter tank. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a top view of the structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the connection structure between the support pipe and the spray pipe of this utility model;
[0021] Figure 4 For the present utility model Figure 3 Exploded view of the internal structure.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Tank body; 2. V-groove; 3. Support pipe; 4. Strip hole; 5. Water spray pipe; 6. Water spray hole; 7. Rotary ring; 8. Cover plate; 9. Circular gear; 10. Drive rack; 11. Drive screw; 12. Mounting plate; 13. Rotating block; 14. Guide plate. Detailed Implementation
[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0025] This utility model discloses a V-shaped filter for sewage treatment.
[0026] This utility model provides, for example Figure 1-4 A V-shaped filter for wastewater treatment is shown, comprising a tank body 1 and V-shaped troughs 2 inside the tank body 1. Support pipes 3 are provided at the bottom of multiple V-shaped troughs 2. The pipe wall of the support pipes 3 is provided with strip-shaped holes 4. The inner walls of the strip-shaped holes 4 are inclined on both sides. A water spray pipe 5 is provided inside the support pipe 3. The pipe wall of the water spray pipe 5 is provided with multiple water spray holes 6 arranged at intervals. The water spray holes 6 and the strip-shaped holes 4 are on the same vertical line.
[0027] The support pipe 3 is fitted with a rotating ring 7 on its pipe wall. The rotating ring 7 is rotatably engaged with the support pipe 3 through its internal rotating bearing. The side wall of the rotating ring 7 is fixed with a cover plate 8, which extends into the support pipe 3 and is engaged with multiple water spray holes 6.
[0028] In order to enable multiple cover plates 8 to rotate simultaneously and open the strip hole 4 for backflush operation, such as Figure 2 As shown, the outer walls of the two rotating rings 7 are fixedly fitted with spherical gears 9, and the outer walls of the two spherical gears 9 are jointly fitted with a drive rack 10. The drive rack 10 is provided with a drive mechanism for driving the drive rack 10 to move. The drive mechanism includes a drive screw 11. The outer wall of the groove 1 is fixedly fitted with two symmetrically arranged mounting plates 12. The drive screw 11 is rotatably mounted in the two mounting plates 12. The end of the drive screw 11 passes through the mounting plate 12 and is fixedly fitted with a rotating block 13. The drive screw 11 is threaded through the inside of the drive rack 10. The side of the drive rack 10 is fixedly fitted with a guide plate 14. The end of the guide plate 14 is in contact with the outer wall of the groove 1.
[0029] Working principle: During the normal filtration stage of the filter tank, the spray holes 6 on the spray pipe 5 are covered by the cover plate 8. At this time, the sewage flows into the filter tank from the V-shaped groove 2. After the filtration effect of the filter material layer, the purified water flows out from the bottom of the filter tank. During this process, since the spray holes 6 are protected by the cover plate 8, impurities are prevented from entering the spray holes 6 and causing blockage, thus ensuring the normal use of the spray pipe 5.
[0030] When backwashing of the filter is required, the operator rotates the rotating block 13, which drives the drive screw 11 to rotate. Since the drive screw 11 is threaded inside the drive rack 10 and the end of the guide plate 14 is in contact with the outer wall of the tank 1, the rotation of the drive rack 10 is restricted, so that the drive rack 10 can only move along the axial direction of the drive screw 11.
[0031] When the drive rack 10 moves, the two spur gears 9 that mesh with it will rotate simultaneously. Since the two spur gears 9 are fixedly sleeved on the outer walls of the two rotating rings 7 respectively, the rotating rings 7 will rotate with the rotation of the spur gears 9. When the rotating rings 7 rotate, the cover plate 8 fixed on its side wall will also rotate, thereby opening the cover plate 8 that originally covered the water spray hole 6, so that the water spray hole 6 can be connected with the strip hole 4.
[0032] At this time, high-pressure water is introduced into the spray pipe 5, and the water is sprayed out from the spray hole 6. It passes through the strip hole 4 to backwash the bottom of the filter. Since the strip hole 4 has a certain length and the spray hole 6 and the strip hole 4 are on the same vertical line, it ensures that the spray nozzle has a sufficiently long spray backwash range, which can backwash the bottom of the filter more comprehensively.
[0033] After backwashing is completed, the rotating block 13 is rotated in the opposite direction, driving the screw 11 to reverse, driving the rack 10 to move in the opposite direction, driving the spur gear 9 and the rotating ring 7 to rotate in the opposite direction, so that the cover plate 8 covers the spray hole 6 again, preparing for the next filtration process, preventing impurities from clogging the spray hole 6, improving the use effect of the filter, and ensuring the stable operation of the filter.
[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A V-shaped filter for wastewater treatment, comprising a tank body (1) and a V-shaped trough (2) disposed inside the tank body (1), characterized in that, The bottom of each of the V-shaped grooves (2) is provided with a support pipe (3), the wall of the support pipe (3) is provided with a strip hole (4), the inside of the support pipe (3) is provided with a water spray pipe (5), the wall of the water spray pipe (5) is provided with a plurality of spaced water spray holes (6), the water spray holes (6) and the strip hole (4) are on the same vertical line. The support pipe (3) is rotatably fitted with a rotating ring (7), and the side wall of the rotating ring (7) is fixedly fitted with a cover plate (8). The cover plate (8) extends into the support pipe (3) and is fitted and cooperates with the multiple water spray holes (6).
2. The V-type filter for wastewater treatment according to claim 1, characterized in that, Both of the two rotating rings (7) are fixedly fitted with spherical gears (9) on their outer walls. The outer walls of the two spherical gears (9) are fitted with a drive rack (10). The drive rack (10) is provided with a drive mechanism inside for driving the drive rack (10) to move.
3. The V-type filter for wastewater treatment according to claim 2, characterized in that, The driving mechanism includes a driving screw (11), and two symmetrically arranged mounting plates (12) are fixedly provided on the outer wall of the groove (1). The driving screw (11) is rotatably disposed in the two mounting plates (12). The end of the driving screw (11) passes through the mounting plate (12) and is fixedly sleeved with a rotating block (13). The driving screw (11) is threaded through the inside of the driving rack (10).
4. The V-type filter for wastewater treatment according to claim 2, characterized in that, The drive rack (10) is fixedly provided with a guide plate (14) on its side, and the end of the guide plate (14) is in contact with the outer wall of the groove (1).
5. The V-type filter for wastewater treatment according to claim 1, characterized in that, The inner walls of the strip hole (4) are both angled.
6. The V-type filter for wastewater treatment according to claim 1, characterized in that, The rotating ring (7) is rotatably engaged with the support tube (3) through its internal rotating bearing.
Citation Information
Patent Citations
V-shaped filter tank for sewage treatment
CN220142777U