Construction site wastewater zero discharge purification device

Abstract

The application discloses a construction site wastewater zero-discharge purification device and relates to the technical field of purification devices. The device comprises a bottom plate, a sewage pool is installed on the top left side of the bottom plate, a water inlet pipe is installed on the front side of the sewage pool, a one-way valve one is installed in the water inlet pipe, a water pump is installed on the right side of the water inlet pipe, a pipeline one is installed on the output end of the water pump, a stirring bin is installed on the right side of the pipeline one, a pipeline two is installed on the back of the stirring bin, a one-way valve two is installed in the pipeline two, and a filter barrel is installed on the back of the pipeline two. In the application, the wastewater is stirred, the reaction between the pollutants and the treatment agent is improved, the wastewater treatment efficiency is improved, the filter plate is cleaned, the flowability of the wastewater is improved, the wastewater is recycled and reused, and the waste of water resources is reduced.

Description

Technical Field

[0001] This invention relates to the field of purification equipment technology, specifically a zero-discharge purification device for construction site wastewater. Background Technology

[0002] A purification device is a piece of equipment or system designed to remove or reduce pollutants, impurities, or harmful substances from media such as air, water, wastewater, exhaust gas, and solid waste, in order to improve their quality, enhance environmental quality, or meet specific quality standards and regulations. Construction sites may be located in water-scarce areas or operate in environments with prolonged drought. Zero-discharge wastewater purification devices can be used to recycle and reuse wastewater, thereby conserving water resources.

[0003] Stirring is commonly used to promote biodegradation or chemical reactions in wastewater. However, some current technologies make it difficult to stir wastewater, making it difficult for pollutants in the wastewater to fully contact the treatment agents or bioreactors. This results in low wastewater treatment efficiency and the generation of foul odors or unpleasant substances, which can have adverse effects on the environment and the health of workers. Summary of the Invention

[0004] The purpose of this invention is to provide a zero-discharge purification device for construction site wastewater to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A base plate is included, a sewage tank is installed on the top left side of the base plate, an inlet pipe is installed on the front side of the sewage tank, a water pump is installed on the right side of the inlet pipe, a first pipe is installed at the output end of the water pump, a mixing chamber is installed on the right side of the first pipe, a second pipe is installed at the rear of the mixing chamber, a filter bucket is installed at the rear of the second pipe, an outlet pipe is installed at the rear of the filter bucket, and a clean water tank is installed at the rear of the outlet pipe.

[0006] A motor is installed on the top of the mixing chamber. A fixed rod is installed on the drive end of the motor. A drive gear is installed on the outside of the fixed rod. A connecting rod is installed at the bottom of the fixed rod. Sleeves are installed on both the left and right sides of the connecting rod. A rotating rod is rotatably connected inside the sleeve. A driven gear is installed on the outside of the rotating rod. Multiple stirring blades are installed on the outside of the rotating rod. A gear ring is installed on the top of the inner wall of the mixing chamber.

[0007] The filter barrel contains a filter plate and a cleaning assembly. The cleaning assembly includes a support plate and a housing at the rear of the support plate. A second motor is installed inside the housing, and a second fixing rod is installed at the drive end of the second motor. A rotating plate is installed outside the second fixing rod. The rotating plate has internal cavities on both its left and right sides. Multiple springs are installed on the front inner wall of each cavity. A sliding plate is slidably connected inside the cavity, and a brush is installed at the rear of the sliding plate.

[0008] The water purification tank includes a lever. A drive motor is installed in the center of the water purification tank. A drive wheel is mounted on the output shaft of the drive motor via bearings. Driven wheels mesh on both sides of the drive wheel. A middle tank is installed below the drive wheel and is mounted on the water purification tank. The middle tank is hollow inside and contains a central support. The central support has a disc-shaped structure and is mounted on the output shaft of the drive motor via bearings. A lever is rotatably connected to the outside of the central support. Six sets of levers are provided. A first rotating shaft is provided on one side of each lever. A first through hole is provided on the middle tank. The first rotating shaft is installed in the first through hole, and a first spring is mounted on the first rotating shaft. A spring is provided, with one side of the first spring contacting the middle barrel. A support wheel is rotatably mounted on the middle barrel. A first rectangular groove is provided on the outer side of the middle part of the support wheel. A gear ring is installed in the first rectangular groove. The gear ring is concentrically arranged with the middle barrel. A first transmission shaft is provided on the outer side of the gear ring. The first transmission shaft is provided with six sets. A rotating component is installed on one side of the first rotating shaft. A first sliding groove is provided on the rotating component. The first sliding groove is slidably connected to the first transmission shaft. A brush plate is installed below the output shaft of the drive motor. A lifting plate is installed below the brush plate. A guide shaft is installed below the lifting plate. A return spring is installed on the guide shaft. The guide shaft is mounted on the middle barrel.

[0009] Starting motor one causes the fixed rod one to rotate, which in turn drives the drive gear to rotate, which in turn drives the connecting rod to rotate. The connecting rod then drives the sleeve, which in turn drives the rotating rod. Through the gear ring, the drive gear drives the driven gear in both linear and axial motion, which in turn drives the rotating rod. The rotating rod then drives the stirring blades, thus agitating the wastewater. This improves the reaction between pollutants and the treatment agent, increases wastewater treatment efficiency, and reduces odors. Starting motor two causes the fixed rod two to rotate, which in turn drives the connecting rod to rotate. The rotating plate is driven to rotate, and the reaction force of the spring causes the sliding plate to slide, which in turn drives the brush to move. The brush contacts the filter plate, cleaning it and improving the flow of wastewater. This reduces the need for manual cleaning of the filter plate. By starting the water pump, wastewater from the sewage tank enters the pump and then flows into the mixing chamber. The wastewater in the mixing chamber then enters the filter tank, where it passes through the filter plate and becomes purified water before entering the purification tank. This achieves wastewater recycling and reuse, reducing water waste and improving the effective use of water resources.

[0010] Water purification in a water purification tank can easily lead to the formation of scale and other impurities at the bottom of the tank. This device can clean these impurities. The specific working process is as follows: The drive motor drives the active wheel to rotate, which in turn drives the driven wheels on both sides to rotate. The driven wheels drive the first vertical shaft to rotate, which in turn drives the gear ring to rotate at a certain angle. The first transmission shaft on the gear ring drives the rotating component to rotate, which in turn drives the first rotating shaft to rotate. The first rotating shaft rotates within the first through hole on the middle tank, which in turn drives the paddle to rotate. Since the paddle and the middle support are rotatably connected, the paddle can rotate at a certain angle. The angle of rotation of the paddle is determined by the size of the first sliding groove on the rotating component. When cleaning is required, the paddle is rotated at a certain angle using the above method. At the same time, the compressed brush plate is moved downwards so that the brush plate contacts the underside of the paddle, allowing the paddle that needs cleaning after being flipped over to be cleaned. The drive motor drives the brush plate to rotate, performing a rotational cleaning.

[0011] The upper part of the drive wheel is provided with a first ratchet tooth profile and a second ratchet tooth profile, with the first ratchet tooth profile positioned above the second ratchet tooth profile. A drive disc is mounted in the middle of the drive wheel. A pawl A is rotatably mounted on one side of the drive disc, and an electromagnet A is mounted on one side of the pawl A. A pawl B is mounted on the other side of the drive disc, and an electromagnet B is mounted on one side of the pawl B. A first torsion spring is mounted on both pawl A and pawl B. The electromagnets A and B are mounted on the rotating disc. Pawl A and pawl B are mirror images of each other, and the first ratchet tooth profile is mirror image of the second ratchet tooth profile.

[0012] The rear part of the second fixing rod is rotatably connected to the inside of the filter plate, and the outside of the second fixing rod is rotatably connected to the rear part of the housing.

[0013] The second fixing rod is externally rotatably connected to the inside of the support plate, and the upper and lower sides of the support plate are installed on the upper and lower inner walls of the filter barrel.

[0014] The filter barrel has a sliding groove inside, and the outer left and right sides of the rotating plate are slidably connected to the inner walls of the sliding groove.

[0015] One end of the spring is installed on the rear inner wall of the cavity, and the other end of the spring is installed on the front side of the sliding plate.

[0016] The external teeth of the driven gear are meshed with the external teeth of the driving gear, and the external teeth of the driven gear are meshed with the internal teeth of the gear ring. A one-way valve is installed inside the water inlet pipe, and a one-way valve is installed inside the pipe.

[0017] The external rotatable connection of the first fixing rod is to the top of the mixing chamber, and the feed inlet is fixed on the right side of the mixing chamber.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0019] 1. Through the cooperation of the motor, fixed rod, drive gear, connecting rod, sleeve, rotating rod, stirring blade, gear ring, driven gear, and other structures, the wastewater is stirred, thereby improving the reaction between pollutants and treatment agents, increasing the efficiency of wastewater treatment, and reducing odor substances.

[0020] 2. Through the cooperation of the motor, fixed rod, rotating plate, spring, sliding plate, brush, filter plate and other structures, the filter plate is cleaned, thereby improving the flow of wastewater and reducing the need for manual cleaning of the filter plate.

[0021] 3. Through the coordinated operation of the sewage tank, inlet pipe, one-way valve, water pump, pipeline one, mixing chamber, pipeline two, one-way valve two, filter barrel, outlet pipe, and purification tank, wastewater is recycled and reused, thereby reducing water waste and improving the effective utilization of water resources.

[0022] 4. It can clean the water purification tank, reducing labor intensity. The drive motor drives the active wheel to rotate, which in turn drives the driven wheels on both sides to rotate. The driven wheels drive the first vertical shaft to rotate, which in turn drives the gear ring to rotate at a certain angle. The first transmission shaft on the gear ring drives the rotating component to rotate, which in turn drives the first rotating shaft to rotate. The first rotating shaft rotates within the first through hole on the middle barrel, and the first rotating shaft drives the paddle to rotate. Since the paddle and the middle support are rotatably connected, the paddle can rotate at a certain angle, and the angle of rotation of the paddle is determined by the size of the first sliding groove on the rotating component. When cleaning is required, the paddle is rotated at a certain angle, and at the same time, the compressed brush plate is moved downward so that the brush plate contacts the underside of the paddle. The paddle that needs cleaning after being flipped can be cleaned. The drive motor drives the brush plate to rotate for rotational cleaning. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the mixing chamber;

[0026] Figure 3 This is a schematic diagram of the internal structure of the filter barrel;

[0027] Figure 4 This is a schematic diagram of the internal structure of the box;

[0028] Figure 5 This is a schematic diagram of the sliding plate structure;

[0029] Figure 6 This is a top view of the water purification tank without its upper structure.

[0030] Figure 7 This is a full sectional view of the water purification tank;

[0031] Figure 8 yes Figure 7 Full sectional view of region AA in the middle;

[0032] Figure 9 yes Figure 7 A structural schematic diagram of components such as the de-energized drive motor;

[0033] Figure 10 yes Figure 9 A schematic diagram of the structure of the center paddle rotating at a certain angle.

[0034] In the diagram: 1. Base plate; 2. Sewage tank; 3. Inlet pipe; 4. One-way valve 1; 5. Water pump; 6. Pipe 1; 7. Mixing chamber; 8. Pipe 2; 9. One-way valve 2; 10. Filter barrel; 11. Outlet pipe; 12. Clean water tank; 13. Motor 1; 14. Fixing rod 1; 15. Drive gear; 16. Connecting rod; 17. Sleeve; 18. Rotating rod; 19. Mixing blade; 20. Gear ring; 21. Feed inlet; 22. Support plate; 23. Box body; 24. Motor 2; 25. Fixing rod 2; 26. Rotating... 27. Moving plate; 28. Inner cavity; 29. ​​Spring; 30. Sliding plate; 31. Brush; 32. Filter plate; 33. Driven gear; 44. Slide groove; 401. Drive motor; 41. Intermediate support; 42. Paddle; 43. Driven wheel; 44. Drive wheel; 45. Pawl A; 451. Electromagnet A; 46. Pawl B; 461. Electromagnet B; 501. Intermediate barrel; 51. Support wheel; 52. Gear ring; 53. Rotating component; 54. Brush plate; 55. Lifting plate; 56. Guide shaft; 57. Return spring. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figures 1-10This invention provides a technical solution: a zero-discharge purification device for construction site wastewater, comprising a base plate 1, a wastewater tank 2 installed on the top left side of the base plate 1, an inlet pipe 3 installed on the front side of the wastewater tank 2, a one-way valve 4 installed inside the inlet pipe 3 to prevent wastewater from flowing back into the wastewater tank 2, a water pump 5 installed on the right side of the inlet pipe 3, the wastewater in the wastewater tank 2 entering the water pump 5, a pipe 6 installed at the output end of the water pump 5, a mixing chamber 7 installed on the right side of the pipe 6, the wastewater in the water pump 5 entering the mixing chamber 7, and the mixing chamber 7... A second pipe 8 is installed at the rear of the mixing chamber 7. A one-way valve 9 is installed inside the second pipe 8. A filter tank 10 is installed at the rear of the second pipe 8. Wastewater from the mixing chamber 7 enters the filter tank 10. A water outlet pipe 11 is installed at the rear of the filter tank 10. A water purification tank 12 is installed at the rear of the water outlet pipe 11. The wastewater is transformed into purified water and enters the water purification tank 12, realizing the recycling and reuse of wastewater, thereby reducing water waste and improving the effective utilization of water resources. A motor 13 is installed at the top of the mixing chamber 7. A fixing rod is installed at the drive end of the motor 13. 14. Motor 13 drives the rotation of fixed rod 14. A drive gear 15 is mounted on the outside of fixed rod 14, causing it to rotate. A connecting rod 16 is mounted at the bottom of fixed rod 14, causing it to rotate. Sleeves 17 are mounted on both sides of connecting rod 16, causing them to move. A rotating rod 18 is rotatably connected inside sleeves 17, causing it to move. A driven rod is mounted on the outside of rotating rod 18. Gear 32, driven by the driven gear 32, drives the rotation rod 18. Multiple stirring blades 19 are installed on the outside of the rotating rod 18, and the rotating rod 18 drives the stirring blades 19 to move. A gear ring 20 is installed on the top of the inner wall of the mixing chamber 7. The fixed rod 14 is externally rotatably connected to the top of the mixing chamber 7. A feed inlet 21 is fixed on the right side of the mixing chamber 7. The feed inlet 21 facilitates the addition of treatment agents, realizes the stirring of wastewater, thereby improving the reaction between pollutants and treatment agents, improving the efficiency of wastewater treatment, and reducing odor substances.

[0037] The filter barrel 10 has a filter plate 31 installed inside. A cleaning assembly is also installed inside the filter barrel 10. The cleaning assembly includes a support plate 22, a housing 23 installed at the rear of the support plate 22, a motor 24 installed inside the housing 23, and a fixed rod 25 installed at the drive end of the motor 24. The motor 24 drives the fixed rod 25 to rotate. A rotating plate 26 is installed outside the fixed rod 25, and the fixed rod 25 drives the rotating plate 26 to rotate. The rotating plate 26 has internal cavities 27 on both its left and right sides. Multiple springs 28 are installed on the front inner wall of the internal cavity 27. A sliding plate 29 is slidably connected inside the internal cavity 27. The springs 28 drive the sliding plate 29 to slide. A brush 30 is installed at the rear of the sliding plate 29, and the sliding plate 29 drives the brush 30 to move. The brush 30 contacts the filter plate 31, thus cleaning the filter plate 31, thereby improving the flowability of wastewater and reducing the need for manual cleaning of the filter plate 31.

[0038] The rear of the second fixing rod 25 is rotatably connected to the inside of the filter plate 31 to prevent it from shaking during movement. The outside of the second fixing rod 25 is rotatably connected to the rear of the housing 23, improving its stability. The outside of the second fixing rod 25 is also rotatably connected to the inside of the support plate 22 to prevent it from shaking during movement. The upper and lower sides of the support plate 22 are installed on the upper and lower inner walls of the filter barrel 10, improving its stability. The filter barrel 10 has a sliding groove 33 inside, and the left and right sides of the rotating plate 26 are slidably connected to the sliding groove 33. The inner walls on both sides improve the stability of the rotating plate 26. One end of the spring 28 is installed on the rear inner wall of the inner cavity 27 to prevent the spring 28 from deviating during movement. The other end of the spring 28 is installed on the front side of the sliding plate 29. The spring 28 drives the sliding plate 29 to slide. The external teeth of the driven gear 32 are meshed with the external teeth of the driving gear 15. The driving gear 15 drives the driven gear 32 to perform linear movement. The external teeth of the driven gear 32 are meshed with the internal teeth of the gear ring 20. The gear ring 20 drives the driven gear 32 to move axially.

[0039] Water purification in the water purification tank 12 can easily lead to scale and other impurities forming at the bottom. This device can clean these impurities. The specific working process is as follows: The drive motor 401 drives the active wheel 44 to rotate, which in turn drives the driven wheels 43 on both sides to rotate. The driven wheels 43 drive the first vertical shaft to rotate, which in turn drives the gear ring 52 to rotate at a certain angle. The first transmission shaft on the gear ring 52 drives the rotating component 53 to rotate, which in turn drives the first rotating shaft to rotate. The first rotating shaft rotates within the first through hole on the intermediate tank 501, which in turn drives the paddle 42 to rotate. Since the paddle 42 and the intermediate support 41 are rotatably connected, the paddle 42 can rotate at a certain angle. The angle of rotation of the paddle 42 is determined by the size of the first sliding groove on the rotating component 53. When cleaning is required, the paddle 42 is rotated 180 degrees using the above method. At the same time, the compressed brush plate 54 is moved downwards, causing the brush... Plate 54 contacts the underside of the paddle 42, which can clean the paddle 42 after it has been flipped over. The drive motor 401 drives the brush plate 54 to rotate for cleaning. Whether the drive wheel 44 rotates is controlled by electromagnets A451 and B461. When cleaning is needed, electromagnet A451 is energized, and the telescopic rod on electromagnet A451 extends to push out the pawl A45 and engage it with the first ratchet tooth. At the same time, the pawl A45 will compress the first torsion spring, that is, the drive motor 401 drives the drive disc to rotate, and the drive disc drives the drive wheel 44 to rotate. When the drive wheel 44 needs to rotate in the opposite direction, electromagnet A451 is de-energized. Under the tension of the first torsion spring, the pawl A45 disengages from the first ratchet tooth, electromagnet B461 is energized, and the telescopic rod on electromagnet B461 extends to engage the pawl B46 with the second ratchet tooth. Similarly, the drive wheel 44 is driven to rotate in the opposite direction.

[0040] Working principle of the invention:

[0041] Starting motor 13 causes the fixed rod 14 to rotate, which in turn drives the drive gear 15 to rotate, which in turn drives the connecting rod 16 to rotate. The connecting rod 16 then drives the sleeve 17, which in turn drives the rotating rod 18. Through the gear ring 20, the drive gear 15 drives the driven gear 32 in both linear and axial motion, which in turn drives the rotating rod 18. The rotating rod 18 then drives the stirring blades 19, thus agitating the wastewater. This improves the reaction between pollutants and the treatment agent, increases wastewater treatment efficiency, and reduces odors. Starting motor 24 causes the fixed rod 25 to rotate, achieving the same effect as the previous motor. Rod 25 drives the rotation of rotating plate 26, and the reaction force of spring 28 causes sliding plate 29 to slide, which in turn drives brush 30 to move. Brush 30 contacts filter plate 31, cleaning filter plate 31 and improving wastewater flow. This reduces the need for manual cleaning of filter plate 31. By starting water pump 5, wastewater in sewage tank 2 enters water pump 5 and then enters mixing chamber 7. Wastewater in mixing chamber 7 then enters filter tank 10. After passing through filter plate 31, the wastewater in filter tank 10 becomes clean water and enters water purification tank 12, achieving wastewater recycling and reuse, reducing water waste and improving the effective use of water resources.

[0042] Water purification in the water purification tank 12 can easily lead to scale and other impurities forming at the bottom. This device can clean these impurities. The specific working process is as follows: The drive motor 401 drives the active wheel 44 to rotate, which in turn drives the driven wheels 43 on both sides to rotate. The driven wheels 43 drive the first vertical shaft to rotate, which in turn drives the gear ring 52 to rotate at a certain angle. The first transmission shaft on the gear ring 52 drives the rotating component 53 to rotate, which in turn drives the first rotating shaft to rotate. The first rotating shaft rotates within the first through hole on the intermediate tank 501, which in turn drives the paddle 42 to rotate. Since the paddle 42 and the intermediate support 41 are rotatably connected, the paddle 42 can rotate at a certain angle. The angle of rotation of the paddle 42 is determined by the size of the first sliding groove on the rotating component 53. When cleaning is required, the paddle 42 is rotated 180 degrees using the above method. At the same time, the compressed brush plate 54 is moved downwards, causing the brush... Plate 54 contacts the underside of the paddle 42, which can clean the paddle 42 after it has been flipped over. The drive motor 401 drives the brush plate 54 to rotate for cleaning. Whether the drive wheel 44 rotates is controlled by electromagnets A451 and B461. When cleaning is needed, electromagnet A451 is energized, and the telescopic rod on electromagnet A451 extends to push out the pawl A45 and engage it with the first ratchet tooth. At the same time, the pawl A45 will compress the first torsion spring, that is, the drive motor 401 drives the drive disc to rotate, and the drive disc drives the drive wheel 44 to rotate. When the drive wheel 44 needs to rotate in the opposite direction, electromagnet A451 is de-energized. Under the tension of the first torsion spring, the pawl A45 disengages from the first ratchet tooth, electromagnet B461 is energized, and the telescopic rod on electromagnet B461 extends to engage the pawl B46 with the second ratchet tooth. Similarly, the drive wheel 44 is driven to rotate in the opposite direction.

[0043] The device lost power, and all parts stopped working.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A zero-discharge purification device for construction site wastewater, characterized in that: Includes a base plate (1), a sewage tank (2) is installed on the top left side of the base plate (1), an inlet pipe (3) is installed on the front side of the sewage tank (2), a water pump (5) is installed on the right side of the inlet pipe (3), a pipe (6) is installed at the output end of the water pump (5), a mixing chamber (7) is installed on the right side of the pipe (6), a pipe (8) is installed at the rear of the mixing chamber (7), a filter barrel (10) is installed at the rear of the pipe (8), an outlet pipe (11) is installed at the rear of the filter barrel (10), and a clean water tank (12) is installed at the rear of the outlet pipe (11). The water purification tank (12) includes a lever (42). A drive motor (401) is installed in the middle of the water purification tank (12). A drive wheel (44) is mounted on the output shaft of the drive motor (401) through a bearing. Driven wheels (43) mesh on both sides of the drive wheel (44). A first vertical shaft is provided below the driven wheel (43). An intermediate bucket (501) is installed on the lower side of the drive wheel (44). The intermediate bucket (501) is installed on the water purification tank (12). The interior of the intermediate bucket (501) is hollow. An intermediate support (41) is installed inside the intermediate barrel (501). The intermediate support (41) has a disc-shaped structure and is mounted on the output shaft of the drive motor (401) via bearings. A lever (42) is rotatably connected to the outside of the intermediate support (41). Six sets of levers (42) are provided. A first rotating shaft is provided on one side of the lever (42). A first through hole is provided on the intermediate barrel (501). The first rotating shaft is installed in the first through hole. A first spring is mounted on the shaft, with one side of the first spring contacting the intermediate barrel (501). A support wheel (51) is rotatably mounted on the intermediate barrel (501). A first rectangular slot is provided on the outer side of the middle of the support wheel (51). A gear ring (52) is installed in the first rectangular slot. One side of the first vertical shaft is mounted on the gear ring (52). The gear ring (52) is concentrically arranged with the intermediate barrel (501). A first drive shaft is provided on the outer side of the gear ring (52). The first drive shaft has six sets. A rotating component (53) is installed on one side of the first rotating shaft. A first sliding groove is provided on the rotating component (53). The first sliding groove is slidably connected to the first transmission shaft. A brush plate (54) is installed below the output shaft of the drive motor (401). A lifting plate (55) is installed below the brush plate (54). A guide shaft (56) is installed below the lifting plate (55). A reset spring (57) is installed on the guide shaft (56). The guide shaft (56) is installed on the intermediate barrel (501). When the paddle (42) needs cleaning, the paddle (42) is flipped at a certain angle, and the paddle (42) presses the brush plate (54) to move downward, so that the brush plate (54) contacts the lower side of the paddle (42). The drive motor (401) drives the brush plate (54) to rotate, and the brush plate (54) cleans the flipped paddle (42). The upper part of the drive wheel (44) is provided with a first ratchet tooth profile and a second ratchet tooth profile. The first ratchet tooth profile is located above the second ratchet tooth profile. The drive wheel (44) is equipped with a drive disc in the middle. A pawl A (45) is rotatably mounted on one side of the drive disc. An electromagnet A (451) is mounted on one side of the pawl A (45). A pawl B (46) is mounted on the other side of the drive disc. An electromagnet B (461) is mounted on one side of the pawl B (46). A first torsion spring is mounted on both the pawl A (45) and the pawl B (46). The electromagnets A (451) and B (461) are mounted on the rotating disc. The pawl A (45) and the pawl B (46) are mirror images of each other. The first ratchet tooth profile and the second ratchet tooth profile are mirror images of each other.

2. The zero-discharge purification device for construction site wastewater according to claim 1, characterized in that: A motor (13) is installed on the top of the mixing chamber (7). A fixed rod (14) is installed on the drive end of the motor (13). A drive gear (15) is installed on the outside of the fixed rod (14). A connecting rod (16) is installed at the bottom of the fixed rod (14). Sleeves (17) are installed on both the left and right sides of the connecting rod (16). A rotating rod (18) is rotatably connected inside the sleeve (17). A driven gear (32) is installed on the outside of the rotating rod (18). Multiple stirring blades (19) are installed on the outside of the rotating rod (18). A gear ring (20) is installed on the top of the inner wall of the mixing chamber (7).

3. The zero-discharge purification device for construction site wastewater according to claim 2, characterized in that: The filter barrel (10) is equipped with a filter plate (31) inside. The filter barrel (10) is equipped with a cleaning assembly. The cleaning assembly includes a support plate (22). A box (23) is installed at the rear of the support plate (22). A motor (24) is installed inside the box (23). A fixing rod (25) is installed at the drive end of the motor (24). A rotating plate (26) is installed outside the fixing rod (25). An inner cavity (27) is opened on both the left and right sides of the rotating plate (26). A plurality of springs (28) are provided on the front inner wall of the inner cavity (27). A sliding plate (29) is slidably connected inside the inner cavity (27). A brush (30) is installed at the rear of the sliding plate (29).

4. The zero-discharge purification device for construction site wastewater according to claim 3, characterized in that: The rear part of the second fixing rod (25) is rotatably connected to the inside of the filter plate (31), and the outside of the second fixing rod (25) is rotatably connected to the rear part of the box body (23).

5. A zero-discharge purification device for construction site wastewater according to claim 4, characterized in that: The external rotatable connection of the second fixing rod (25) is to the inside of the support plate (22), and the upper and lower sides of the support plate (22) are installed on the upper and lower inner walls of the filter barrel (10).

6. The zero-discharge purification device for construction site wastewater according to claim 5, characterized in that: The filter barrel (10) has a sliding groove (33) inside, and the outer left and right sides of the rotating plate (26) are slidably connected to the inner walls of the sliding groove (33).

7. A zero-discharge purification device for construction site wastewater according to claim 6, characterized in that: One end of the spring (28) is installed on the rear inner wall of the inner cavity (27), and the other end of the spring (28) is installed on the front side of the sliding plate (29).

8. A zero-discharge purification device for construction site wastewater according to claim 7, characterized in that: The external teeth of the driven gear (32) are meshed with the external teeth of the driving gear (15), and the external teeth of the driven gear (32) are meshed with the internal teeth of the gear ring (20). A one-way valve (4) is installed inside the water inlet pipe (3), and a one-way valve (9) is installed inside the pipe (8).

9. A zero-discharge purification device for construction site wastewater according to claim 8, characterized in that: The fixed rod (14) is externally rotatably connected to the top of the mixing chamber (7), and the feed inlet (21) is installed on the right side of the mixing chamber (7).

Images