Novel rotary rake type bar screen

Abstract

This utility model relates to the technical field of sewage treatment equipment and discloses a novel rotary rake-type bar screen cleaner, including a top box. Support plates are fixedly connected to both sides of the top box. A first device box is fixedly connected to the top of the right side wall of the right support plate. A first fixing plate is fixedly connected to the bottom of the first device box. A motor is installed on the top of the first fixing plate. Racks are installed inside both support plates. This utility model, through the installation of a motor, racks, a first gear, and a second gear, solves the problems of increased labor, spare parts, and downtime losses, as well as reduced equipment operating efficiency. Because the connecting plate moves with the connecting ring, it ultimately drives the concave plate and rake blades on the front side of the connecting plate to move synchronously, thereby effectively reducing downtime caused by manual cleaning, improving equipment operating efficiency, increasing the interception and removal rate of solid impurities, and reducing the risk of impurities entering subsequent treatment equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage treatment equipment, and in particular to a novel rotary rake bar screen cleaner. Background Technology

[0002] The new rotary rake bar screen is a device used for sewage treatment and solid-liquid separation. It is mainly used to intercept and remove impurities such as suspended solids, floating objects, fibers, and branches from water. It is usually installed at the inlet of a sewage treatment plant or before the pumping station to protect downstream treatment equipment (such as water pumps and pipelines) from blockage and damage.

[0003] During processing, solid impurities such as twigs, fibers, and plastics gradually accumulate on the screen, preventing water from flowing through normally. Severe clogging can lead to sewage overflow, polluting the environment. Increased water level differences before and after the screen can cause siltation and flow interruption in the inlet channel, resulting in increased labor, spare parts, and downtime losses, increased equipment load, and reduced equipment operating efficiency. Some of the debris intercepted by the screen is sticky; without spray washing, this debris will adhere to the surface of the rake blades, the gaps between the rake teeth, and the chain links, gradually accumulating into clumps. In severe cases, this can cause rake blade jamming, chain breakage, or even motor overload and shutdown, shortening its service life, making cleaning more difficult, and potentially requiring shutdown and component disassembly, affecting continuous equipment operation. Utility Model Content

[0004] The main purpose of this utility model is to provide a new type of rotary rake bar screen cleaner, which can effectively solve the problems of increased labor, spare parts and downtime losses, increased equipment load, reduced equipment operating efficiency and shortened service life, greater cleaning difficulty, possible shutdown for disassembly of parts, and impact on continuous operation of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel rotary rake-type bar screen cleaner, comprising a top box, with support plates fixedly connected to both the left and right sides of the top box, a first device box fixedly connected to the top of the right side wall of the right support plate, a first fixing plate fixedly connected to the bottom of the first device box, a motor mounted on the top of the first fixing plate, racks mounted inside the two support plates, a first rotating rod fixedly connected to the output end of the motor, the left end of the first rotating rod rotatably connected to the inside of the right side wall of the left support plate, and first gears fixedly connected to the outer sides of both ends of the first rotating rod, with the outer sides of the two first gears meshing with the inner sides of the two racks.

[0006] Furthermore, a second rotating rod is rotatably connected to the bottom of the inner sidewall of the two support plates. A second gear is fixedly connected to the outer side of both ends of the second rotating rod. The outer side of the two second gears meshes with the inner bottom wall of the two racks. A connecting ring is fixedly connected to the outer side of the two racks. An installation groove is provided on the inner sidewall of each of the two connecting rings.

[0007] Furthermore, each of the mounting slots is provided with a connecting block inside, and a connecting plate is fixedly connected to the other side of every two connecting blocks. A concave plate is threadedly connected to the front side wall of each connecting plate, and a rake blade is fixedly connected to the front side wall of each concave plate. A grid plate is fixedly connected to the front inner side wall of the two support plates, and the grid plate is correspondingly arranged with multiple rake blades inside.

[0008] Furthermore, a fixing seat is fixedly connected to the rear side of the inner sidewall of the two support plates, and a first guide plate is fixedly connected to the top of the fixing seat. An inclined plate is fixedly connected to the rear side of the inner side of the top box, and the bottom of the inclined plate is located at the top of the first guide plate.

[0009] Furthermore, a feeding box is fixedly connected to the rear side wall of the fixed base, a second guide plate is fixedly connected inside the feeding box, and a discharge port is opened on the rear side wall of the feeding box.

[0010] Furthermore, a second device box is fixedly connected to the left side wall of the support plate on the left side, a second fixing plate is fixedly connected inside the second device box, a diverter pump is provided on the top of the second fixing plate, and a connecting pipe is fixedly connected to the input end of the diverter pump through the outer side wall of the second device box.

[0011] Furthermore, the top output end of the diversion pump is fixedly connected to a first adapter pipe, the right end of the first adapter pipe passes through the interior of the left support plate and is connected to a first spray pipe, the right end of the first spray pipe is fixedly connected to the inner side wall of the right support plate, and the bottom of the first spray pipe is connected to a first nozzle.

[0012] Furthermore, a second adapter pipe is fixedly connected to the rear output end of the diversion pump, and a second spray pipe is connected to the other end of the second adapter pipe. The front side wall of the second spray pipe is fixedly connected to the rear side wall of the two support plates, and a second nozzle is connected to the bottom of each of the second spray pipes. Multiple second nozzles are arranged on the rear top of the first guide plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model, through its motor, rack, first gear, second gear, connecting block, concave plate, rake blade, and grating plate, solves the problems of increased labor, spare parts, and downtime losses, increased equipment load, and reduced equipment operating efficiency. Therefore, the connecting plate moves with the connecting ring, ultimately driving the concave plate and rake blade on the front side of the connecting plate to move synchronously. The grating plate is fixed to the inner front wall of the two support plates, and its grid gaps are used to intercept suspended debris in the water. When the rake blade moves with the transmission structure, it slides against the surface of the grating plate, scraping off the debris intercepted by the grating plate and carrying it to the slag discharge area, completing the debris removal process. This effectively reduces downtime caused by manual cleaning, improves equipment operating efficiency, increases the interception and removal rate of solid impurities, and reduces the risk of impurities entering subsequent treatment equipment.

[0014] 2. By using the second fixed plate, diversion pump, first adapter pipe, first nozzle, second spray pipe, and second nozzle, the problems of shortened service life, greater cleaning difficulty, and the need for machine shutdown and disassembly of parts, which affect the continuous operation of the equipment, can be solved. The first adapter pipe connected to the top output end passes through the left support plate and communicates with the first spray pipe fixed to the inner wall of the two support plates. Water flows out through multiple first nozzles at the bottom of the first spray pipe and acts directly on the surface of the grid plate and rake blades, promptly washing away the dirt adhering to the rake blades during scraping, preventing dirt from accumulating and caking on the rake blades or grid plate, thereby effectively reducing the frequency of downtime maintenance, ensuring continuous and stable operation of the equipment, slowing down the aging of the equipment, and reducing the need for frequent replacement of spare parts.

[0015] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the novel rotary rake bar screen cleaner proposed in this utility model; Figure 2 This is a structural diagram of the first fixed plate of the novel rotary rake bar screen cleaner proposed in this utility model; Figure 3 This is a structural diagram of the connecting ring of the novel rotary rake bar screen cleaner proposed in this utility model; Figure 4 This is a structural diagram of the first rotating rod of the novel rotary rake bar screen cleaner proposed in this utility model; Figure 5 This is a structural diagram of the rake blade of the novel rotary rake-type bar screen cleaner proposed in this utility model; Figure 6 This is a rear structural diagram of the novel rotary rake bar screen cleaner proposed in this utility model; Figure 7This is a schematic diagram of the first guide plate of the novel rotary rake bar screen cleaner proposed in this utility model; Figure 8 This is a structural diagram of the second transfer pipe of the novel rotary rake bar screen cleaner proposed in this utility model; Figure 9 This is a structural diagram of the second nozzle of the novel rotary rake-type bar screen cleaner proposed in this utility model.

[0017] Legend: 1. Top box; 2. Support plate; 3. First device box; 4. First fixing plate; 5. Motor; 6. Rack; 7. First rotating rod; 8. First gear; 9. Second rotating rod; 10. Second gear; 11. Connecting ring; 12. Mounting groove; 13. Connecting block; 14. Connecting plate; 15. Concave plate; 16. Rake blade; 17. Grating plate; 18. Fixing seat; 19. First guide plate; 20. Inclined plate; 21. Feed box; 22. Second guide plate; 23. Discharge port; 24. Second device box; 25. Second fixing plate; 26. Diverter pump; 27. Connecting pipe; 28. First transfer pipe; 29. ​​First spray pipe; 30. First nozzle; 31. Second transfer pipe; 32. Second spray pipe; 33. Second nozzle. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figure 1 - Figure 4 As shown: A novel rotary rake-type bar screen cleaner includes a top box 1. Support plates 2 are fixedly connected to both the left and right sides of the top box 1. The support plates 2 serve as the overall support structure, and the top box 1 provides protection to prevent waste from being thrown out through the top during operation. A first device box 3 is fixedly connected to the top of the right side wall of the right support plate 2. A first fixing plate 4 is fixedly connected to the bottom of the first device box 3. A motor 5 is mounted on the top of the first fixing plate 4. The first device box 3 and the first fixing plate 4 provide external and bottom support and protection for the motor 5. Both support plates 2 have racks 6 inside. The output end of the motor 5 is fixedly connected to a first rotating rod 7. The left end of the first rotating rod 7 is rotatably connected to the inside of the right side wall of the left support plate 2. The outer sides of both ends of the first rotating rod 7 are fixedly connected to first gears 8. The outer sides of the two first gears 8 mesh with the inside of the two racks 6. After the motor 5 is started, its output end drives the first rotating rod 7 to rotate. As the first rotating rod 7 rotates, the two outer first gears 8 will also rotate synchronously. After the two first gears 8 are driven, they mesh with the inside of the two racks 6 to drive the two racks 6 to rotate.

[0020] like Figure 1 - Figure 5 As shown, a second rotating rod 9 is rotatably connected to the bottom of the inner sidewall of the two support plates 2. A second gear 10 is fixedly connected to the outer sides of both ends of the second rotating rod 9. The outer sides of the two second gears 10 mesh with the inner bottom walls of the two racks 6. The outer sides of the two first gears 8 mesh with the racks 6 inside the support plates 2. Furthermore, at the bottom of the inner sidewall of the two support plates 2, the second gears 10 at both ends of the second rotating rod 9 also mesh with the inner bottom walls of the racks 6. Under the combined action of the first gears 8 and the second gears 10, the racks 6 obtain a stable driving force and move along the inner side of the support plates 2. This meshing structure of the double gears and racks 6 ensures the smoothness and accuracy of the rack 6's movement.

[0021] Two racks 6 are fixedly connected to connecting rings 11 on their outer sides. The inner sidewalls of the two connecting rings 11 are provided with mounting grooves 12. Each mounting groove 12 is provided with a connecting block 13 inside. Each pair of connecting blocks 13 is fixedly connected to a connecting plate 14 on the other side. Each connecting plate 14 is threadedly connected to a concave plate 15 on its front sidewall. Each concave plate 15 is fixedly connected to a rake blade 16 on its front sidewall. The inner sidewalls of the two support plates 2 are fixedly connected to a grid plate 17. The inside of the grid plate 17 corresponds to the multiple rake blades 16. When the racks 6 move, the connecting rings 11 move synchronously. The inner wall of the connecting ring 11 is provided with an installation groove 12. The connecting block 13 in the installation groove 12 fixes the connecting ring 11 to the connecting plate 14. Therefore, the movement of the connecting ring 11 drives the connecting plate 14 to move together. The connecting plate 14 is connected by a threaded plate 15 on the outer side of the connecting plate 14, so that the rake blade 16 moves synchronously with the movement of the connecting plate 14. When it is necessary to disassemble and replace, the concave plate 15 and the rake blade 16 can be removed and replaced by removing the bolts on the concave plate 15 and the connecting plate 14. In addition, the grid plate 17 is fixed inside the front side of the two support plates 2, and the interior of the grid plate 17 is correspondingly arranged with multiple rake blades 16. During the movement of the rake blades 16, they can accurately contact the grid plate 17 and efficiently scrape off the dirt attached to the grid plate 17.

[0022] like Figure 1 - Figure 8As shown, a fixed base 18 is fixedly connected to the rear side of the inner sidewall of the two support plates 2. A first guide plate 19 is fixedly connected to the top of the fixed base 18. An inclined plate 20 is fixedly connected to the rear side of the inner side of the top box 1. The bottom of the inclined plate 20 is located at the top of the first guide plate 19. The scraped dirt is transported to the rear of the equipment as the rake blade 16 continues to move. At this time, the first guide plate 19 fixed to the top of the fixed base 18 on the rear side of the inner sidewall of the two support plates 2 plays a role. The dirt carried by the rake blade 16 is guided to the first guide plate 19. The bottom of the inclined plate 20 on the rear side of the inner side of the top box 1 is located at the top of the first guide plate 19, further smoothly guiding the dirt to the first guide plate 19.

[0023] A feeding box 21 is fixedly connected to the rear side wall of the fixed base 18. A second guide plate 22 is fixedly connected inside the feeding box 21. A discharge port 23 is opened on the rear side wall of the feeding box 21. The dirt enters the interior of the feeding box 21 through the slope of the first guide plate 19. The second guide plate 22 inside the feeding box 21 guides the dirt entering the interior of the feeding box 21 again, causing the dirt to flow to the rear side and be discharged from the interior of the feeding box 21 through the second guide plate 22.

[0024] like Figure 1 - Figure 9 As shown, a second device box 24 is fixedly connected to the left side wall of the left support plate 2. A second fixing plate 25 is fixedly connected inside the second device box 24. A diversion pump 26 is installed on the top of the second fixing plate 25. The diversion pump 26 is externally protected by the second device box 24 and the second fixing plate 25. A connecting pipe 27 is fixedly connected to the input end of the diversion pump 26 through the outer side wall of the second device box 24. The diversion pump 26 is connected to external pipes through the connecting pipe 27 at the input end to draw water from the outside.

[0025] The top output end of the diversion pump 26 is fixedly connected to a first adapter pipe 28. The right end of the first adapter pipe 28 passes through the interior of the left support plate 2 and is connected to a first spray pipe 29. The right end of the first spray pipe 29 is fixedly connected to the inner wall of the right support plate 2. The bottom of the first spray pipe 29 is connected to a first nozzle 30. After the water flow is diverted by the diversion pump 26, it is delivered through two output ends: Firstly, the water flow is introduced into the first spray pipe 29 through the first adapter pipe 28 at the top output end. The first spray pipe 29 is horizontally fixed to the inner wall of the two support plates 2. Multiple first nozzles 30 at its bottom spray water vertically downwards, which precisely acts on the surface of the moving rake blade 16 to wash away the dirt left by the rake blade 16 during scraping, so as to prevent dirt from sticking to the rake blade 16 and causing blockage, and to ensure that the rake blade 16 continues to operate efficiently.

[0026] The rear output end of the diversion pump 26 is fixedly connected to a second adapter pipe 31. The other end of the second adapter pipe 31 is connected to a second spray pipe 32. The front side wall of the second spray pipe 32 is fixedly connected to the rear side wall of the two support plates 2. The bottom of the second spray pipe 32 is connected to a second nozzle 33. Multiple second nozzles 33 are set on the rear top of the first guide plate 19. Through the second adapter pipe 31 at the rear output end, water is introduced into the second spray pipe 32. The second spray pipe 32 is fixed to the rear side wall of the two support plates 2. Multiple second nozzles 33 at its bottom are correspondingly set on the rear top of the first guide plate 19. The water is sprayed obliquely on the surface of the first guide plate 19 to perform secondary rinsing on the dirt guided here, preventing dirt from remaining and accumulating on the first guide plate 19, and ensuring that the dirt can slide smoothly into the feed box 21.

[0027] It should be noted that this utility model is a new type of rotary rake bar screen cleaner. First, the motor 5 and the diversion pump 26 are connected to the external power supply and control terminal to supply power to the device and control the whole system.

[0028] The motor 5, serving as the power source, is mounted on the first fixed plate 4, and its output end drives the first rotating rod 7 to rotate. The first gears 8 at the left and right ends of the first rotating rod 7 rotate accordingly. Since the first gear 8 meshes with the rack 6 inside the support plate 2, the rotation of the gear is converted into movement along the direction of the rack 6, thereby driving the entire transmission structure to move up and down along the support plate 2.

[0029] While the first gear 8 rotates, the second rotating rod 9 connected to the bottom of its inner wall moves synchronously, causing the second gear 10 at both ends of the second rotating rod 9 to mesh and rotate with the bottom of the rack 6, forming auxiliary support and guidance for the transmission structure, ensuring the stability of the overall movement, and avoiding deviation due to excessive force on a single set of gears. The connecting ring 11 on the outer side of the rack 6 moves synchronously with the rack 6. The connecting ring 11 is fixed to the connecting plate 14 through the connecting block 13 in the mounting groove 12. Therefore, the connecting plate 14 moves together with the connecting ring 11, ultimately driving the concave plate 15 and the rake blade 16 on the front side of the connecting plate 14 to move synchronously. The grid plate 17 is fixed to the inner front wall of the two support plates 2, and its grid gaps are used to intercept suspended dirt in the water. When the rake blade 16 moves with the transmission structure, it slides against the surface of the grid plate 17, scraping off the dirt intercepted by the grid plate 17 and carrying it to the sludge discharge area, completing the dirt removal process.

[0030] The second device box 24 is fixed to the left side wall of the left support plate 2, and the internal second fixing plate 25 provides a stable mounting base for the diversion pump 26. The diversion pump 26 serves as the power source for the sprinkler system and obtains clean water from the outside through the connecting pipe 27 at the input end. After pressurizing the water flow, the diversion pump 26 delivers it to different pipelines through two output ends: the first adapter pipe 28 connected to the top output end passes through the left support plate 2 and communicates with the first spray pipe 29 fixed on the inner side wall of the two support plates 2. The water flows out through multiple first nozzles 30 at the bottom of the first spray pipe 29 and acts directly on the surface of the grid plate 17 and the rake blade 16 to wash away the dirt adhering to the rake blade 16 during the scraping process in time, and to prevent the dirt from accumulating and caking on the rake blade 16 or the grid plate 17. The second adapter pipe 31 connected to the rear output end is connected to the second spray pipe 32 fixed on the rear side wall of the two support plates 2. Water flows through the multiple second nozzles 33 at the bottom of the second spray pipe 32 and sprays out from the top of the rear side of the first guide plate 19 to perform secondary rinsing on the dirt that moves to the slag discharge area with the rake plate 16, ensuring that the dirt can be smoothly removed from the rake plate 16 and fall into the subsequent guide or collection structure, while reducing the possibility of the rake plate 16 carrying residual dirt on its return trip.

[0031] 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 illustrative of the principles of this 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel rotary rake-type bar screen cleaner, comprising a top box (1), characterized in that: Support plates (2) are fixedly connected to both the left and right sides of the top box (1). A first device box (3) is fixedly connected to the top of the right side wall of the right support plate (2). A first fixing plate (4) is fixedly connected to the bottom of the first device box (3). A motor (5) is provided on the top of the first fixing plate (4). A rack (6) is provided inside both support plates (2). A first rotating rod (7) is fixedly connected to the output end of the motor (5). The left end of the first rotating rod (7) is rotatably connected to the inside of the right side wall of the left support plate (2). A first gear (8) is fixedly connected to the outer sides of both the left and right ends of the first rotating rod (7). The outer sides of the two first gears (8) mesh with the inside of the two racks (6).

2. The novel rotary rake-plate bar screen cleaner according to claim 1, characterized in that: The bottom of the inner sidewalls of the two support plates (2) are rotatably connected to a second rotating rod (9). The outer sides of the left and right ends of the second rotating rod (9) are fixedly connected to a second gear (10). The outer sides of the two second gears (10) mesh with the inner bottom walls of the two racks (6). The outer sides of the two racks (6) are fixedly connected to a connecting ring (11). The inner sidewalls of the two connecting rings (11) are provided with mounting grooves (12).

3. The novel rotary rake-plate bar screen cleaner according to claim 2, characterized in that: Each of the mounting slots (12) is provided with a connecting block (13) inside. A connecting plate (14) is fixedly connected to the other side of every two connecting blocks (13). A concave plate (15) is threadedly connected to the front side wall of each connecting plate (14). A rake blade (16) is fixedly connected to the front side wall of each concave plate (15). A grid plate (17) is fixedly connected to the front inner side wall of the two support plates (2). The grid plate (17) is correspondingly arranged with multiple rake blades (16).

4. The novel rotary rake-plate bar screen cleaner according to claim 1, characterized in that: A fixed seat (18) is fixedly connected to the rear side of the inner side wall of the two support plates (2). A first guide plate (19) is fixedly connected to the top of the fixed seat (18). An inclined plate (20) is fixedly connected to the rear side of the inner side of the top box (1). The bottom of the inclined plate (20) is located at the top of the first guide plate (19).

5. The novel rotary rake-plate bar screen cleaner according to claim 4, characterized in that: The rear side wall of the fixed base (18) is fixedly connected to the feeding box (21), the interior of the feeding box (21) is fixedly connected to the second guide plate (22), and the rear side wall of the feeding box (21) is provided with a discharge port (23).

6. The novel rotary rake-plate bar screen cleaner according to claim 1, characterized in that: A second device box (24) is fixedly connected to the left side wall of the support plate (2) on the left side. A second fixing plate (25) is fixedly connected inside the second device box (24). A diversion pump (26) is provided on the top of the second fixing plate (25). A connecting pipe (27) is fixedly connected to the input end of the diversion pump (26) through the outer side wall of the second device box (24).

7. The novel rotary rake-plate bar screen cleaner according to claim 6, characterized in that: The top output end of the diversion pump (26) is fixedly connected to a first adapter pipe (28). The right end of the first adapter pipe (28) passes through the interior of the left support plate (2) and is connected to a first spray pipe (29). The right end of the first spray pipe (29) is fixedly connected to the inner wall of the right support plate (2). The bottom of the first spray pipe (29) is connected to a first nozzle (30).

8. The novel rotary rake-plate bar screen cleaner according to claim 7, characterized in that: The rear output end of the diverter pump (26) is fixedly connected to a second adapter pipe (31), and the other end of the second adapter pipe (31) is connected to a second spray pipe (32). The front side wall of the second spray pipe (32) is fixedly connected to the rear side wall of the two support plates (2). The bottom of the second spray pipe (32) is connected to a second nozzle (33), and multiple second nozzles (33) are arranged on the rear top of the first guide plate (19).

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