Integrated domestic sewage treatment equipment
By designing a mechanical grid structure with sleeves and scrapers, the problem of brushes being unable to clean the debris on the hooks was solved, achieving all-around cleaning and efficient sewage filtration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN QINGWO ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-26
AI Technical Summary
In existing technologies, brushes cannot effectively clean debris tangled on mechanical bar screen hooks, affecting the filtration effect and efficiency of wastewater.
A mechanical grid structure including a sleeve and a scraper was designed. The brush on the sleeve is driven by a motor to clean the garbage on the hook from all directions, and the scraper removes the residual garbage on the brush. Combined with a spring and slider structure, the garbage is prevented from getting stuck on the scraper, ensuring high cleaning efficiency.
It achieves comprehensive cleaning of the garbage on the hooks, ensuring the efficiency and effectiveness of sewage filtration, avoiding garbage entanglement and residue, and improving the cleaning capacity of the mechanical bar screen.
Smart Images

Figure CN224279997U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of domestic sewage treatment technology, specifically to an integrated domestic sewage treatment device. Background Technology
[0002] Domestic sewage refers to wastewater generated by humans in their daily lives, mainly from households, schools, commercial establishments, and public facilities. It contains a variety of pollutants, and if discharged directly without treatment, it will harm the environment and human health.
[0003] Domestic sewage treatment refers to the process of removing pollutants from wastewater generated in daily life through physical, biological, and chemical technologies, so that it meets discharge standards or reuse requirements. Integrated domestic sewage treatment equipment is now commonly used.
[0004] Before treating sewage, a mechanical screen is used to isolate and filter the garbage mixed in the sewage, and then the garbage falls into a designated location. Currently, the hooks of the mechanical screen are cleaned by rotating a brush, but the brush cannot remove the garbage tangled on the hooks. The garbage accumulated on the hooks will affect the effectiveness and efficiency of the sewage isolation and filtration. Utility Model Content
[0005] The purpose of this utility model is to provide an integrated domestic sewage treatment device to overcome the aforementioned defects in the prior art. According to this utility model, an integrated domestic sewage treatment device includes a tank, within which, from left to right, are arranged an equalization tank, an anoxic tank, a membrane bioreactor, a sludge tank, and a disinfection tank. A filter box is installed on the side closest to the equalization tank, and a mechanical bar is bolted into the filter box. A storage basket is installed below the mechanical bar, and an effluent pipe is installed on one side of the disinfection tank.
[0006] A rotating shaft is rotatably installed inside the mechanical grid, a sleeve is slidably installed on the rotating shaft, several bristles are installed on the sleeve, a connecting rod is slidably installed on one side of the sleeve, a connecting rod is rotatably installed on the connecting rod, the connecting rod is connected to the turntable, and a motor is installed below the turntable.
[0007] Preferably, the mechanical grid includes a frame, in which a drive shaft and a driven shaft are rotatably mounted respectively. Grid chains are installed at both ends of the drive shaft and the driven shaft respectively. Several hooks are installed between the two grid chains. A motor is installed on the top of the frame. A transmission wheel is installed on the motor. A transmission wheel is installed at one end of the drive shaft. A belt is installed between the transmission wheel and the transmission wheel.
[0008] Preferably, a rotating shaft is rotatably installed inside the frame, several brush bristles are installed on the rotating shaft, and a motor is installed on one side of the rotating shaft.
[0009] Preferably, a sleeve is slidably installed on the rotating shaft, and several bristles are installed on the sleeve. A first groove is opened inside the sleeve, and a first slider is fixedly installed on the rotating shaft. The first slider is slidably connected to the first groove. A second groove is opened on one side of the sleeve, and a second slider is slidably installed in the second groove. A through hole is opened on the side of the frame, and a connecting rod is installed on the second slider. The connecting rod is slidably installed in the through hole. A connecting rod is rotatably installed at the other end of the connecting rod. A fixing plate is fixedly installed below the through hole, and a third motor is installed on the fixing plate. A turntable is installed on the third motor, and a connecting column is fixedly installed on the top of the turntable. The connecting column is spaced a certain distance from the center of the turntable, and the connecting rod is connected to the connecting column.
[0010] Preferably, a scraper is installed below the sleeve, with the scraper positioned between the bristles.
[0011] Preferably, a sliding groove three is formed on both sides of the frame, a slider three is fixedly installed on both sides of the scraper, a sliding hole is formed through the slider three, a sliding rod is fixedly installed in the sliding groove three, the slider three is slidably installed on the sliding rod, springs are respectively installed between the top and bottom of the slider three and the sliding groove three, a placement groove one is formed through the sliding groove three on one side, a fixing rod is fixedly installed on the slider three on the same side, a rotating groove is formed in the placement groove one, a rotating blade is installed in the rotating groove, a placement groove two is formed in the placement groove one, a motor four is installed in the placement groove two, and the rotating blade is installed on the motor four.
[0012] The beneficial effects of this utility model are:
[0013] 1. A sleeve is slidably installed on the rotating shaft, and several bristles are installed on the sleeve. A connecting rod is slidably installed on one side of the sleeve. A through hole is opened on the side of the frame, and the connecting rod is slidably installed in the through hole. A connecting rod is rotatably installed on the other end of the connecting rod. A motor is installed below the through hole, and a turntable is installed on the motor. A connecting column is fixedly installed on the top of the turntable. The connecting column is spaced a certain distance from the center of the turntable. The connecting rod is installed on the connecting column. The motor is started to drive the turntable to rotate, which in turn drives the connecting rod to reciprocate. The connecting rod drives the sleeve to slide repeatedly on the rotating shaft. By controlling the reciprocating motion of the sleeve, the bristles can clean the garbage on the hooks from all sides, ensuring the cleaning efficiency of the mechanical bar for sewage and preventing garbage from getting tangled on the hooks.
[0014] 2. A scraper is installed below the sleeve. The scraper is positioned between the bristles. When the rotating shaft is rotated and the sleeve is slid, the bristles come into contact with the tip of the scraper, scraping off the debris remaining on the bristles. This prevents the debris remaining on the bristles from affecting the cleaning effect on the hook.
[0015] 3. Slide grooves are made on both sides of the frame. Slide blocks are fixedly installed on both sides of the scraper. A slide rod is fixedly installed in the slide groove. The slide blocks are slidably installed on the slide rod. Springs are installed between the top and bottom of the slide blocks and the slide groove. A placement groove is made in one side of the slide groove. A fixing rod is fixedly installed on the slide blocks. A rotating groove and a placement groove are made in the placement groove. A rotating blade is installed in the rotating groove. A motor is installed in the placement groove. The rotating blade is installed on the motor. The motor is started to control the rotating blade to rotate. The rotating blade presses the fixing rod in sequence, causing the slide blocks to press and stretch the upper and lower springs. After the rotating blade leaves the surface of the fixing rod, the slide blocks slide up and down under the action of the two springs, causing the scraper to vibrate. This can prevent garbage from sticking on the scraper and ensure the high efficiency of cleaning the brush bristles. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the appearance of this utility model;
[0017] Figure 2 This is a side sectional view of the present invention;
[0018] Figure 3 This is a schematic diagram of the mechanical grille.
[0019] Figure 4 yes Figure 3 Enlarged view of point A;
[0020] Figure 5 This is a schematic diagram of the first side view section of the mechanical grille;
[0021] Figure 6 yes Figure 5 Enlarged view of point B;
[0022] Figure 7 This is a front view cross-sectional diagram of a mechanical grille;
[0023] Figure 8 yes Figure 7 Enlarged view of point C;
[0024] Figure 9 yes Figure 7Enlarged diagram of point D;
[0025] Figure 10 yes Figure 7 Enlarged view of point E;
[0026] Figure 11 This is a schematic diagram of the second side cross-section of the mechanical grille;
[0027] Figure 12 yes Figure 11 Enlarged schematic diagram at point F;
[0028] In the diagram: 1. Equalization tank; 2. Anoxic tank; 3. Membrane bioreactor; 4. Sludge tank; 5. Disinfection tank; 6. Box body; 7. Filter box; 9. Effluent pipe; 10. Collection basket; 11. Active drive shaft; 12. Driven drive shaft; 13. Grille chain; 14. Frame; 15. Hook; 16. Motor 1; 17. Drive wheel 1; 18. Drive wheel 2; 19. Belt; 20. Rotating shaft; 21. Brush bristles; 22. Motor 2; 23. Chute 1; 2 4. Slider 1; 25. Slide 2; 26. Slider 2; 27. Through hole; 28. Connecting rod; 29. Connecting rod; 30. Turntable; 31. Connecting column; 32. Fixing plate; 33. Motor 3; 34. Sleeve; 35. Scraper; 36. Slide 3; 37. Slider 3; 38. Fixing rod; 39. Spring; 40. Slide rod; 41. Slide hole; 42. Placement slot 1; 43. Rotating slot; 44. Motor 4; 45. Rotating blade; 46. Placement slot 2. Detailed Implementation
[0029] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe an integrated domestic sewage treatment device or several specific implementation methods of this utility model, and does not strictly limit the scope of protection specifically claimed by this utility model. As used herein, the terms up and down and left and right are not limited to their strict geometric definitions, but rather include tolerances for reasonable and inconsistent machining or human errors. The specific features of this integrated domestic sewage treatment device are described in detail below:
[0030] Reference Figures 1-12 An integrated domestic sewage treatment device according to an embodiment of the present invention includes a housing 6. Inside the housing 6, from left to right, an equalization tank 1, an anoxic tank 2, a membrane bioreactor 3, a sludge tank 4, and a disinfection tank 5 are arranged sequentially. A filter box 7 is installed on the side near the equalization tank 1. A mechanical bar is installed in the filter box 7 by bolting. A storage basket 10 is installed below the mechanical bar. An outlet pipe 9 is installed on one side of the disinfection tank 5. This is a conventional structure of an integrated domestic sewage treatment device.
[0031] The mechanical bar screen includes a frame 14, within which a drive shaft 11 and a driven shaft 12 are rotatably mounted. Bar screen chains 13 are mounted at both ends of the drive shaft 11 and the driven shaft 12. Several hooks 15 are installed between the two bar screen chains 13. A motor 16 is mounted on the top of the frame 14, and a drive wheel 17 is mounted on the motor 16. A drive wheel 18 is mounted at one end of the drive shaft 11, and a belt 19 is installed between the drive wheel 17 and the drive wheel 18. Starting the motor 16 drives the drive wheel 17 to rotate, which in turn drives the drive wheel 18 via the belt 19, thereby rotating the drive shaft 11. This, in turn, drives the driven shaft 12 via the bar screen chains 13, causing the hooks 15 to repeatedly rotate within the frame 14, filtering and isolating the introduced wastewater. Upon reaching the top, the hooks 15 flip, causing the waste to fall into the collection basket 10.
[0032] A rotating shaft 20 is rotatably installed inside the frame 14, and several brush bristles 21 are installed on the rotating shaft 20. A second motor 22 is installed on one side of the rotating shaft 20. When the second motor 22 is started, the rotating shaft 20 is controlled to rotate, and the brush bristles 21 brush the object off the hook 15.
[0033] Currently, the hook 15 is cleaned by rotating the bristles 21, but the bristles 21 cannot brush off the debris wrapped around the hook 15. The debris accumulated on the hook 15 will affect the effect and efficiency of sewage isolation and filtration. In order to solve this problem, the inventors have considered making the following improvements.
[0034] A sleeve 34 is slidably mounted on the rotating shaft 20. Several bristles 21 are mounted on the sleeve 34. A first groove 23 is formed inside the sleeve 34. A first slider 24 is fixedly mounted on the rotating shaft 20, and the first slider 24 is slidably connected to the first groove 23. A second groove 25 is formed on one side of the sleeve 34. A second slider 26 is slidably mounted in the second groove 25. A through hole 27 is formed on the side of the frame 14. A connecting rod 28 is mounted on the second slider 26 and slidably mounted in the through hole 27. A connecting rod 29 is rotatably mounted on the other end of the connecting rod 28. A fixing plate 32 is fixedly mounted below the through hole 27. A third motor 33 is mounted on the fixing plate 32. A turntable 30 is mounted on the third motor 33. A connecting post 31 is fixedly installed on the top of the turntable 30. The connecting post 31 is a certain distance away from the center of the turntable 30. The connecting rod 29 is connected to the connecting post 31. The motor 33 is started to drive the turntable 30 to rotate, thereby driving the connecting rod 28 to reciprocate in the through hole 27. The connecting rod 28 drives the sleeve 34 to slide repeatedly on the rotating shaft 20. The motor 22 drives the rotating shaft 20 to rotate, causing the slider 26 to slide in the groove 25. The sleeve 34 is controlled to reciprocate, so that the bristles 21 can clean the garbage on the hook 15 from all sides, ensuring the cleaning efficiency of the mechanical screen 8 for sewage and avoiding the situation where garbage is entangled on the hook 15.
[0035] Furthermore, to prevent debris from remaining on the bristles 21 after cleaning, a scraper 35 is installed below the sleeve 34, with the scraper 35 positioned between the gaps in the bristles 21. When the rotating shaft 20 is rotated and the sleeve 34 is slid, the bristles 21 come into contact with the tips of the scraper 35, scraping off any debris remaining on the bristles 21, thus preventing any debris remaining on the bristles 21 from affecting the cleaning effect on the hook 15.
[0036] Furthermore, to prevent waste from sticking to the scraper 35, three grooves 36 are formed on both sides of the frame 14, and three sliders 37 are fixedly installed on both sides of the scraper 35. A sliding hole 41 is formed through the slider 37, and a sliding rod 40 is fixedly installed in the groove 36. The slider 37 is slidably mounted on the sliding rod 40. Springs 39 are installed between the top and bottom of the slider 37 and the groove 36, respectively. A placement groove 42 is formed in one side of the groove 36, and a fixing rod 38 is fixedly installed on the slider 37 on the same side. A rotating groove 43 is formed in the placement groove 42, and a rotating blade 45 is installed in the rotating groove 43. A second placement slot 46 is provided inside the 42, and a fourth motor 44 is installed in the second placement slot 46. The rotating blade 45 is installed on the fourth motor 44. During the operation of the device, the fourth motor 44 is started to control the rotation of the rotating blade 45. The rotating blade 45 sequentially presses the fixed rod 38, causing the third slider 37 to press and stretch the upper and lower springs 39. After the rotating blade 45 leaves the surface of the fixed rod 38, the third slider 37 slides up and down under the action of the two springs 39, causing the scraper 35 to vibrate. This can prevent the garbage from getting stuck on the scraper 35 when scraping the bristles 21, ensuring the high efficiency of cleaning the bristles 21.
[0037] The specific implementation method is as follows:
[0038] When the mechanical grille is running, the motor 33 is started to control the turntable 30 to rotate. Through the cooperation of the connecting rod 28 and the connecting rod 29, the sleeve 34 is driven to slide repeatedly on the rotating shaft 20, so that the bristles 21 can clean the hook 15 from all directions. At the same time, the motor 44 is started to control the rotating blade 45 to rotate, repeatedly squeezing the fixed rod 38. The fixed rod 38 squeezes the spring 39. Under the force of the spring 39, the scraper 35 is shaken to prevent the cleaned-up garbage from sticking on the scraper 35.
[0039] Those skilled in the art will appreciate that various modifications to the above embodiments can be made without departing from the overall spirit and concept of this utility model. All such modifications fall within the protection scope of this utility model. The protection scheme of this utility model is defined by the appended claims.
Claims
1. An integrated domestic sewage treatment device, comprising a housing (6), wherein an equalization tank (1), an anoxic tank (2), a membrane bioreactor (3), a sludge tank (4), and a disinfection tank (5) are arranged sequentially from left to right within the housing (6); a filter box (7) is installed on the side near the equalization tank (1); a mechanical bar is installed in the filter box (7) by bolts; a collection basket (10) is installed below the mechanical bar; and an effluent pipe (9) is installed on one side of the disinfection tank (5), characterized in that: A rotating shaft (20) is rotatably installed inside the mechanical grid. A sleeve (34) is slidably installed on the rotating shaft (20). Several bristles (21) are installed on the sleeve (34). A connecting rod (28) is slidably installed on one side of the sleeve (34). A connecting rod (29) is rotatably installed on the connecting rod (28). The connecting rod (29) is connected to the turntable (30). A motor (33) is installed below the turntable (30).
2. The integrated domestic sewage treatment equipment according to claim 1, characterized in that: The mechanical grid includes a frame (14), in which a drive shaft (11) and a driven shaft (12) are rotatably mounted respectively. Grid chains (13) are installed at both ends of the drive shaft (11) and the driven shaft (12). Several hooks (15) are installed between the two grid chains (13). A motor (16) is installed on the top of the frame (14). A transmission wheel (17) is installed on the motor (16). A transmission wheel (18) is installed at one end of the drive shaft (11). A belt (19) is installed between the transmission wheel (17) and the transmission wheel (18).
3. The integrated domestic sewage treatment equipment according to claim 2, characterized in that: A rotating shaft (20) is rotatably installed inside the frame (14), a number of brush bristles (21) are installed on the rotating shaft (20), and a motor (22) is installed on one side of the rotating shaft (20).
4. The integrated domestic sewage treatment equipment according to claim 3, characterized in that: A sleeve (34) is slidably mounted on the rotating shaft (20), and several bristles (21) are mounted on the sleeve (34). A first groove (23) is opened inside the sleeve (34), and a first slider (24) is fixedly mounted on the rotating shaft (20). The first slider (24) is slidably connected to the first groove (23). A second groove (25) is opened on one side of the sleeve (34), and a second slider (26) is slidably mounted inside the second groove (25). A through hole (27) is opened on the side of the frame (14), and a connecting rod (2) is mounted on the second slider (26). 8) The connecting rod (28) is slidably installed in the through hole (27). A connecting rod (29) is rotatably installed at the other end of the connecting rod (28). A fixing plate (32) is fixedly installed below the through hole (27). A motor (33) is installed on the fixing plate (32). A turntable (30) is installed on the motor (33). A connecting column (31) is fixedly installed on the top of the turntable (30). The connecting column (31) and the center of the turntable (30) are separated by a certain distance. The connecting rod (29) is connected to the connecting column (31).
5. The integrated domestic sewage treatment equipment according to claim 4, characterized in that: A scraper (35) is installed below the sleeve (34), with the scraper (35) positioned between the gaps in the bristles (21).
6. The integrated domestic sewage treatment equipment according to claim 5, characterized in that: Slide grooves (36) are formed on both sides of the frame (14). Slide blocks (37) are fixedly installed on both sides of the scraper (35). Slide holes (41) are formed through the slide blocks (37). Slide rods (40) are fixedly installed in the slide grooves (36). The slide blocks (37) are slidably mounted on the slide rods (40). Springs (39) are installed between the top and bottom of the slide blocks (37) and the slide grooves (36). A placement groove 1 (42) is opened through the groove 3 (36). A fixing rod (38) is fixedly installed on the slider 3 (37) on the same side. A rotating groove (43) is opened in the placement groove 1 (42). A rotating blade (45) is installed in the rotating groove (43). A placement groove 2 (46) is opened in the placement groove 1 (42). A motor 4 (44) is installed in the placement groove 2 (46). The rotating blade (45) is installed on the motor 4 (44).