A self-cleaning wastewater treatment device

Abstract

The present invention relates to the technical field of wastewater treatment, and specifically to a self-cleaning wastewater treatment device, comprising a treatment pool, one end of which is provided with a drain outlet, a middle portion of which is provided with a filter structure, the filter structure is connected with a drive structure, a connection structure is connected between the drive structure and the treatment pool, a closing structure is provided on the side of the treatment pool, a switching structure is connected between the closing structure and the treatment pool, and a water inlet structure is provided at the other end of the treatment pool; the filter net can be continuously cleaned by the filter structure, the device can be automatically cleaned by the drive structure, the direction of the screening belt can be conveniently switched by the connection structure to maintain the filtering effect, the two sides of the filter can be closed by the closing structure to facilitate the cleaning of the inside of the treatment pool, the gates on both sides can be freely controlled by the switching structure, and the height of the wastewater entering can be adjusted by the water inlet structure.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a self-cleaning wastewater treatment device. Background Art

[0002] Wastewater treatment is a measure or technology that uses physical or chemical means to purify wastewater. With the development of science and technology, human life and industrial production will cause water pollution. At present, water pollution caused by industrial production is relatively serious. Industrial wastewater contains more pollutants and is difficult to treat. The development of today's society is inseparable from industrial production. Therefore, wastewater treatment equipment plays a vital role.

[0003] However, existing wastewater will breed a large amount of algae after eutrophication. When this type of wastewater is initially filtered, the algae will clog the filter, slowing down or even stopping the filtration speed. At the same time, the existing filtration device needs to replace the filter regularly, which is inconvenient to operate. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a self-cleaning wastewater treatment device.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a self-cleaning wastewater treatment device, comprising a treatment pool, one end of the treatment pool is provided with a drain outlet, the middle of the treatment pool is provided with a filter structure, the filter structure is connected with a drive structure, a connection structure is connected between the drive structure and the treatment pool, a closing structure is provided on the side of the treatment pool, a switching structure is connected between the closing structure and the treatment pool, and the other end of the treatment pool is provided with a water inlet structure;

[0006] The filtering structure includes a transmission shaft, and the two sides of the treatment tank are respectively connected to a transmission shaft in rotation, and the two transmission shafts are sleeved with screening belts, and a cleaning column is provided in the middle of the screening belt, and the cleaning column is connected to the bottom side of the treatment tank in rotation, and the side of the cleaning column is provided with a plurality of embedded heads, and the embedded heads are meshed with the screening belt through the sieve holes provided on the screening belt;

[0007] The driving structure includes a gear, the end of the transmission shaft is fixedly connected to a gear, the side of the gear is meshed with a rack, the top side of the rack is provided with a translation plate, the translation plate is slidably connected to the treatment tank, a motor is installed on the top side of the treatment tank, the end of the motor is fixedly connected to a driving wheel through a coupling, the bottom side of the driving wheel is fixedly connected to a sliding column, a driving groove is opened in the middle of the translation plate, and the sliding column is slidably connected to the translation plate through the driving groove;

[0008] The connecting structure includes a first inclined rod, the first inclined rod is slidably connected to the inner side of the treatment pool, the second inclined rod is slidably connected to the side of the first inclined rod, the second inclined rod is fixedly connected to the treatment pool, the first inclined rod and the second inclined rod both pass through the translation plate, the rack is slidably connected to the translation plate, a pushing block is fixedly connected to the side of the rack, a first spring is fixedly connected between the pushing block and the translation plate, and the end of the pushing block conflicts with the side of the first inclined rod.

[0009] Specifically, a traction block is slidably connected to the side of the treatment pool, a groove is provided on the side of the traction block, a pulley is rotatably connected to the end of the first inclined rod, the pulley is rollingly connected to the traction block through the groove, a first screw is rotatably connected to the side of the traction block, and the first screw is threadedly connected to the treatment pool.

[0010] Specifically, the closed structure includes a gate plate, and a gate plate is respectively provided on both sides of the screening belt. The gate plate is slidably connected to the processing tank. A sealing strip is fixedly connected to the inner side of the processing tank. The side of the gate plate is slidably connected to the processing tank through the sealing strip. A threaded groove is provided on the side of the gate plate. A second screw is rotatably connected to the inner side of the processing tank, and the second screw is threadedly connected to the gate plate through the threaded groove.

[0011] Specifically, a first pulley is fixedly connected to the middle of the second screw, a worm wheel is rotatably connected to the inner side of the treatment tank, a second pulley is fixedly connected to the side of the worm wheel, a transmission belt is sleeved between the first pulley and the second pulley, and a worm is meshed with the side of the worm wheel.

[0012] Specifically, the switching structure includes a driving shaft, which is rotatably connected to the inner side of the treatment tank. The driving shaft is rotatably connected to the worm gears arranged on both sides respectively. A connecting groove is provided at the end of the worm gear. A connecting shaft is provided between the two worm gears. The connecting shaft is slidably connected to the driving shaft, and the connecting shaft is rotatably connected to the treatment tank. A synchronization block is slidably connected to each of the two ends of the connecting shaft, and a third spring is fixedly connected between the synchronization block and the connecting shaft. The synchronization block is slidably connected to the worm gear through the connecting groove.

[0013] Specifically, the two sides of the connecting shaft are rotatably connected with interference blocks, a switching block is provided between the two interference blocks, the switching block is rotatably connected to the treatment pool, a matching groove is provided on the side of the interference block, and the end of the switching block is in conflict with the adjacent interference block through the matching groove, and the two ends of the driving shaft are fixedly connected with rockers.

[0014] Specifically, the water inlet structure includes a water inlet pipe, the end of the treatment tank is rotatably connected to the water inlet pipe, a plurality of positioning grooves are opened on the side of the water inlet pipe, a positioning block is slidably connected to the inner side of the treatment tank, a second spring is fixedly connected between the positioning block and the treatment tank, the end of the positioning block is in conflict with the water inlet pipe through the positioning groove, a third screw is threadedly connected to the top side of the treatment tank, and the end of the third screw is in conflict with the positioning block.

[0015] The beneficial effects of the present invention are:

[0016] (1) A self-cleaning wastewater treatment device described in the present invention comprises a filtering structure in the middle of the treatment tank, and the filtering structure is connected to a driving structure. The filtering structure can be used to quickly clean the filter screen to ensure the filtering effect, and the driving structure can keep the device in a cleaning state.

[0017] (2) In the self-cleaning wastewater treatment device described in the present invention, a connecting structure is connected between the driving structure and the treatment tank, and the direction of the screening belt can be easily switched through the connecting structure to maintain the filtering effect.

[0018] (3) In the self-cleaning wastewater treatment device described in the present invention, a closing structure is provided on the side of the treatment tank, and a switching structure is connected between the closing structure and the treatment tank. The closing structure can be used to close both sides of the filter to facilitate cleaning inside the treatment tank, and the gates on both sides can be freely controlled by the switching structure.

[0019] (4) In the self-cleaning wastewater treatment device described in the present invention, a water inlet structure is provided at the other end of the treatment tank, and the height of the wastewater entering can be adjusted by the water inlet structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 A schematic diagram of the overall structure provided by the present invention;

[0022] Figure 2 for Figure 1 The schematic diagram of the connection structure between the treatment tank and the motor shown;

[0023] Figure 3 for Figure 1 The schematic diagram of the connection structure between the treatment tank and the gate shown;

[0024] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A shown;

[0025] Figure 5 for Figure 1The schematic diagram of the connection structure between the treatment tank and the screening belt is shown;

[0026] Figure 6 for Figure 5 The enlarged structural diagram of part B is shown;

[0027] Figure 7 for Figure 1 The schematic diagram of the structure of the gate shown;

[0028] Figure 8 for Figure 7 The enlarged structural diagram of the C part shown;

[0029] Fig. 9 for Figure 1 The schematic diagram of the connection structure of the treatment tank and the cleaning column shown;

[0030] Fig.10 for Fig. 9 The enlarged structural diagram of the D part shown;

[0031] Fig.11 for Fig.10 A schematic diagram of the connection structure between the treatment tank and the worm shown;

[0032] Fig.12 for Figure 1 The schematic diagram of the connection structure between the treatment tank and the water inlet pipe shown;

[0033] Fig.13 for Figure 2 The schematic diagram of the connection structure of the conflict block and the switching block is shown.

[0034] In the figure: 1, treatment tank; 2, filtering structure; 201, screening belt; 202, cleaning column; 203, fitting head; 204, transmission shaft; 3, driving structure; 301, motor; 302, driving wheel; 303, translation plate; 304, gear; 305, rack; 306, driving groove; 307, sliding column; 4, connecting structure; 401, first screw; 402, pushing block; 403, first spring; 404, first inclined rod; 405, second inclined rod; 406, traction block; 407, notch; 408, pulley; 5, drainage outlet; 6, closing structure; 60 1. Gate; 602. Sealing strip; 603. Second screw; 604. First pulley; 605. Transmission belt; 606. Second pulley; 607. Worm wheel; 608. Worm; 609. Thread groove; 7. Water inlet structure; 701. Third screw; 702. Water inlet pipe; 703. Positioning block; 704. Positioning groove; 705. Second spring; 8. Switching structure; 801. Resistance block; 802. Switching block; 803. Connecting shaft; 804. Connecting groove; 805. Drive shaft; 806. Rocker; 807. Synchronous block; 808. Third spring; 809. Matching groove. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] like Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 8 As shown, a self-cleaning wastewater treatment device described in the present invention includes a treatment tank 1, a drain outlet 5 is opened at one end of the treatment tank 1, a filtering structure 2 is provided in the middle of the treatment tank 1, the filtering structure 2 is connected to a driving structure 3, a connecting structure 4 is connected between the driving structure 3 and the treatment tank 1, a closing structure 6 is provided on the side of the treatment tank 1, a switching structure 8 is connected between the closing structure 6 and the treatment tank 1, and a water inlet structure 7 is provided at the other end of the treatment tank 1.

[0037] Specifically, Figure 1 , Figure 2 , Figure 3 , Figure 5 , Fig. 9 , Fig.10 As shown, the filtering structure 2 includes a transmission shaft 204, and the two sides of the treatment tank 1 are respectively rotatably connected with a transmission shaft 204, and the two transmission shafts 204 are sleeved with a screening belt 201, and a cleaning column 202 is provided in the middle of the screening belt 201, and the cleaning column 202 is rotatably connected to the bottom side of the treatment tank 1, and a plurality of embedded heads 203 are provided on the side of the cleaning column 202, and the embedded heads 203 are meshed with the screening belt 201 through the sieve holes opened on the screening belt 201;

[0038] In order to reduce the interference of impurities in the wastewater on the filtering effect, a screening belt 201 is set in the middle of the treatment pool 1 to filter the wastewater. The screening belt 201 can be rotated by rotating the transmission shafts 204 on both sides. The cleaning column 202 arranged in the middle of the screening belt 201 is tangent to the inner side of the screening belt 201. At the same time, the engaging head 203 arranged on the surface of the cleaning column 202 will cooperate with the sieve holes on the screening belt 201. When the transmission shaft 204 rotates, the cleaning column 202 will mesh with the screening belt 201, so that the screening belt 201 moves with the rotation of the cleaning column 202. In this process, the dredging effect of the engaging head 203 keeps the sieve holes on the surface of the screening belt 201 unobstructed, thereby maintaining the filtering effect of the screening belt 201.

[0039] Specifically, Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 7As shown, the driving structure 3 includes a translation plate 303. When the translation plate 303 located on the top side of the transmission shaft 204 slides back and forth inside the processing tank 1, it can drive the cleaning column 202 to continuously reciprocate within a certain range, thereby achieving a continuous cleaning effect on the screening belt 201. A motor 301 is installed on the top side of the processing tank 1. The end of the motor 301 is fixedly connected to the driving wheel 302 through a coupling. The bottom side of the driving wheel 302 is fixedly connected to a sliding column 307. A driving groove 306 is opened in the middle of the translation plate 303. The sliding column 307 is slidably connected to the translation plate 303 through the driving groove 306.

[0040] A motor 301 is provided on the top side of the treatment tank 1, and the motor 301 is electrically connected to an external power supply. After the motor 301 is started, the motor 301 will drive the driving wheel 302 at the end to rotate, and the sliding column 307 on the bottom side of the driving wheel 302 will slide in the driving groove 306 opened on the translation plate 303, and at the same time drive the translation plate 303 to slide back and forth inside the treatment tank 1. At this time, the rack 305 arranged on the bottom side of the translation plate 303 will drive the transmission shaft 204 to rotate back and forth in the forward and reverse directions through the gear 304 through the meshing effect. As the transmission shaft 204 reciprocates, the screening belt 201 will repeatedly mesh with the cleaning column 202, thereby continuously cleaning the sieve holes on the screening belt 201 and maintaining the filtering effect of the screening belt 201 on wastewater.

[0041] Specifically, Figure 1 , Figure 2 , Figure 4 , Figure 6 As shown, the connection structure 4 includes a first inclined rod 404, the inner side of the treatment pool 1 is slidably connected to the first inclined rod 404, the side of the first inclined rod 404 is slidably connected to the second inclined rod 405, the second inclined rod 405 is fixedly connected to the treatment pool 1, the first inclined rod 404 and the second inclined rod 405 both penetrate the translation plate 303, the rack 305 is slidably connected to the translation plate 303, the side of the rack 305 is fixedly connected to the pushing block 402, the pushing block 402 is fixedly connected to the translation plate 303 3, the end of the pushing block 402 is in conflict with the side of the first inclined rod 404, the side of the treatment tank 1 is slidably connected with a traction block 406, the side of the traction block 406 is provided with a notch 407, the end of the first inclined rod 404 is rotatably connected with a pulley 408, the pulley 408 is rollingly connected with the traction block 406 through the notch 407, the side of the traction block 406 is rotatably connected with a first screw 401, and the first screw 401 is threadedly connected to the treatment tank 1;

[0042] When one side of the screening belt 201 is seriously blocked or the position of the screening belt 201 needs to be adjusted, the user can rotate the first screw 401 located on the side of the treatment tank 1 so that the first screw 401 pulls the traction block 406 to one side. When the traction block 406 slides, the traction block 406 drives the first inclined rod 404 to slide to one side through the notch 407 and the inner pulley 408. At this time, the inclined protrusions on the sides of the first inclined rod 404 and the second inclined rod 405 are staggered. At the same time, through the push of the pushing block 402 The first inclined rod 404 and the second inclined rod 405 will collide with each other, and the rack 305 fixed on the bottom side of the pushing block 402 will also slide to one side and release the meshing state with the gear 304. At this time, the user can directly rotate the transmission shaft 204 to rotate the screening belt 201 and switch the filtering side of the screening belt 201 to facilitate manual cleaning of the screening belt 201. After cleaning, re-tightening the first screw 401 can make the rack 305 mesh with the tooth block again, thereby restoring the self-cleaning effect of the screening belt 201.

[0043] Specifically, Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 As shown, the closed structure 6 includes a gate plate 601, a gate plate 601 is provided on both sides of the screening belt 201, the gate plate 601 is slidably connected to the processing tank 1, a sealing strip 602 is fixedly connected to the inner side of the processing tank 1, the side of the gate plate 601 is slidably connected to the processing tank 1 through the sealing strip 602, a thread groove 609 is provided on the side of the gate plate 601, a second screw 603 is rotatably connected to the inner side of the processing tank 1, the second screw 603 is threadedly connected to the gate plate 601 through the thread groove 609, a first pulley 604 is fixedly connected to the middle part of the second screw 603, a worm wheel 607 is rotatably connected to the inner side of the processing tank 1, a second pulley 606 is fixedly connected to the side of the worm wheel 607, a transmission belt 605 is sleeved between the first pulley 604 and the second pulley 606, and a worm 608 is meshed on the side of the worm wheel 607;

[0044] In order to facilitate the cutting off of wastewater and thus the cleaning of the treatment tank 1, a gate plate 601 is provided on both sides of the screening belt 201, and a threaded groove 609 is provided on the side of the gate plate 601. When the worm 608 located in the treatment tank 1 rotates, the worm 608 will drive the worm wheel 607 engaged on the side to rotate, and the worm wheel 607 will further drive the second screw 603 to rotate through the transmission effect of the first pulley 604, the second pulley 606 and the transmission belt 605. The rotation of the second screw 603 will drive the gate plate 601 to rise and fall, so as to control the on and off of the wastewater in the treatment tank 1. The side of the gate plate 601 is in contact with the treatment tank 1 through the sealing strip 602 to ensure the sealing effect.

[0045] Specifically, Figure 2 , Figure 3 , Figure 7 , Figure 8 , Fig.10 , Fig.11 , Fig.13 As shown, the switching structure 8 includes a driving shaft 805, the inner side of the treatment tank 1 is rotatably connected with the driving shaft 805, the driving shaft 805 is rotatably connected with the worms 608 arranged on both sides, the ends of the worms 608 are provided with connecting grooves 804, a connecting shaft 803 is provided between the two worms 608, the connecting shaft 803 is slidably connected with the driving shaft 805, the connecting shaft 803 is rotatably connected with the treatment tank 1, and the two ends of the connecting shaft 803 are slidably connected with a synchronization block 807, the synchronization block 807 and the connecting shaft 8 03 is fixedly connected with a third spring 808, the synchronization block 807 is slidably connected with the worm 608 through the connecting groove 804, and the two sides of the connecting shaft 803 are rotatably connected with the contact blocks 801, and a switching block 802 is provided between the two contact blocks 801, and the switching block 802 is rotatably connected with the treatment tank 1, and the side of the contact block 801 is provided with an anastomotic groove 809, and the end of the switching block 802 is in conflict with the adjacent contact block 801 through the anastomotic groove 809, and the two ends of the driving shaft 805 are respectively fixedly connected with rocking arms 806;

[0046] In order to facilitate the control of the two gates 601 on both sides of the screening belt 201, a switching block 802 is provided on the side of the treatment tank 1. When the user rotates the switching block 802, the end of the switching block 802 will push the interference block 801 on one side, thereby causing the connecting shaft 803 on the inner side of the treatment tank 1 to slide until the synchronous block 807 at the end of the connecting shaft 803 conflicts with the worm 608 set on the same side. At this time, the user can rotate the rocker 806 on the side of the treatment tank 1. Since the driving shaft 805 is slidably connected to the connecting shaft 803 in the middle, the driving shaft 805 can drive the connecting shaft 803 to rotate. As the connecting shaft 803 rotates, the synchronous block 807 at the end of the connecting shaft 803 will slide into the matching groove 809 at the end of the worm 608 on the same side. At this time, the gate 601 on the current side can be driven to rise and fall by rotating the driving rod, which is convenient for controlling the on and off of wastewater on either side of the screening belt 201 and convenient for cleaning the screening belt 201 and the treatment tank 1.

[0047] Specifically, Figure 1 , Figure 3 , Figure 5 , Fig. 9 , Fig.12 As shown, the water inlet structure 7 includes a water inlet pipe 702, the end of the treatment tank 1 is rotatably connected to the water inlet pipe 702, a plurality of positioning grooves 704 are provided on the side of the water inlet pipe 702, a positioning block 703 is slidably connected to the inner side of the treatment tank 1, a second spring 705 is fixedly connected between the positioning block 703 and the treatment tank 1, the end of the positioning block 703 is in conflict with the water inlet pipe 702 through the positioning groove 704, the top side of the treatment tank 1 is threadedly connected to a third screw 701, and the end of the third screw 701 is in conflict with the positioning block 703;

[0048] The water inlet pipe 702 for introducing wastewater can be rotated with the treatment tank 1. The user unscrews the third screw 701 on the top side. At this time, the user can freely rotate the direction of the water inlet pipe 702. After the adjustment is completed, the positioning block 703 is in conflict with the corresponding positioning groove 704, and then the third screw 701 is re-tightened to fix the current rotation direction of the water inlet pipe 702. By adjusting the height of the water inlet pipe 702, the wastewater can be prevented from flowing back.

[0049] When the present invention is in use, firstly, in order to reduce the interference of impurities in the wastewater on the filtering effect, a screening belt 201 is arranged in the middle of the treatment tank 1 to filter the wastewater. The screening belt 201 can be rotated by the rotation of the transmission shafts 204 on both sides. The cleaning column 202 arranged in the middle of the screening belt 201 is tangent to the inner side surface of the screening belt 201. At the same time, the engaging head 203 arranged on the surface of the cleaning column 202 will be engaged with the sieve holes on the screening belt 201. When the transmission shaft 204 rotates, the cleaning column 202 will mesh with the screening belt 201, and the sieve holes on the surface of the screening belt 201 are kept unobstructed by the push of the engaging head 203, so as to maintain the filtering effect of the screening belt 201. A motor 301 is arranged on the top side of the treatment tank 1. The motor 301 is electrically connected to an external power source. After the motor 301 is started, the motor 301 will drive the driving wheel 302 at the end to rotate, and the sliding column 307 on the bottom side of the driving wheel 302 will slide in the driving groove 306 provided on the translation plate 303, and at the same time drive the translation plate 303 to slide back and forth inside the treatment tank 1. At this time, the rack 305 provided on the bottom side of the translation plate 303 will drive the transmission shaft 204 to rotate back and forth in the forward and reverse directions through the gear 304 through the meshing effect. With the reciprocating rotation of the transmission shaft 204, the screening belt 201 will repeatedly mesh with the cleaning column 202, thereby continuously cleaning the sieve holes on the screening belt 201 and maintaining the filtering effect of the screening belt 201 on the wastewater. As a result, when one side of the screening belt 201 is seriously blocked or the position of the screening belt 201 needs to be adjusted, the user can rotate the first screw 401 located on the side of the processing tank 1 so that the first screw 401 pulls the traction block 406 to one side. While the traction block 406 slides, the traction block 406 drives the first inclined plane rod 404 to slide to one side through the notch 407 and the inner pulley 408. At this time, the inclined plane protrusions on the sides of the first inclined plane rod 404 and the second inclined plane rod 405 are staggered. At the same time, the push of the pushing block 402 will cause the first inclined plane rod 404 and the second inclined plane rod 405 to collide with each other, and at the same time, the rack 305 fixed on the bottom side of the pushing block 402 will also slide to one side. And the meshing state with the gear 304 is released. At this time, the user can directly rotate the transmission shaft 204 to rotate the screening belt 201, switch the filtering side of the screening belt 201, and manually clean the screening belt 201. After cleaning, re-tighten the first screw 401 to make the rack 305 mesh with the tooth block again, and restore the self-cleaning effect of the screening belt 201. In order to facilitate the cutting off of wastewater and cleaning of the treatment tank 1, a gate plate 601 is provided on both sides of the screening belt 201, and a threaded groove 609 is provided on the side of the gate plate 601. When the worm 608 located in the treatment tank 1 rotates, the worm 608 will drive the worm wheel 607 meshing on the side to rotate.The worm gear 607 will further drive the second screw 603 to rotate through the transmission effect of the first pulley 604, the second pulley 606 and the transmission belt 605. The rotation of the second screw 603 will drive the gate plate 601 to rise and fall to control the on and off of the wastewater in the treatment tank 1. The side of the gate plate 601 is in conflict with the treatment tank 1 through the sealing strip 602 to ensure the sealing effect. In order to facilitate the control of the two gate plates 601 on both sides of the screening belt 201, a switching block 802 is provided on the side of the treatment tank 1. When the user rotates the switching block 802, the end of the switching block 802 will push the conflicting block 801 on one side, thereby causing the connecting shaft 803 on the inner side of the treatment tank 1 to slide until the synchronous block 807 at the end of the connecting shaft 803 conflicts with the worm 608 set on the same side. At this time, the user can rotate the rocker 806 on the side of the treatment tank 1. The connecting shaft 803 is slidably connected, so that the driving shaft 805 can drive the connecting shaft 803 to rotate. As the connecting shaft 803 rotates, the synchronous block 807 at the end of the connecting shaft 803 will slide into the matching groove 809 at the end of the worm 608 on the same side. At this time, the gate plate 601 on the current side can be driven to rise and fall by rotating the driving rod, which is convenient for controlling the on and off of wastewater on either side of the screening belt 201, and convenient for cleaning the screening belt 201 and the treatment tank 1. The water inlet pipe 702 for introducing wastewater can be rotated with the treatment tank 1. The user unscrews the third screw 701 on the top side. At this time, the user can freely rotate the direction of the water inlet pipe 702. After the adjustment is completed, the positioning block 703 conflicts with the corresponding positioning groove 704, and then the third screw 701 is re-tightened to fix the rotation direction of the current water inlet pipe 702. By adjusting the height of the water inlet pipe 702, the wastewater can be prevented from flowing back.

[0050] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0051] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A self-cleaning wastewater treatment device, characterized in that: The invention comprises a treatment pool (1), wherein a drainage port (5) is provided at one end of the treatment pool (1), a filtering structure (2) is provided in the middle of the treatment pool (1), the filtering structure (2) is connected to a driving structure (3), a connecting structure (4) is connected between the driving structure (3) and the treatment pool (1), a closing structure (6) is provided on the side of the treatment pool (1), a switching structure (8) is connected between the closing structure (6) and the treatment pool (1), and a water inlet structure (7) is provided at the other end of the treatment pool (1); The filtering structure (2) comprises a transmission shaft (204), and each of the two sides of the treatment tank (1) is rotatably connected to a transmission shaft (204), and a screening belt (201) is sleeved on the two transmission shafts (204). A cleaning column (202) is provided in the middle of the screening belt (201), and the cleaning column (202) is rotatably connected to the bottom side of the treatment tank (1). A plurality of engaging heads (203) are provided on the side of the cleaning column (202), and the engaging heads (203) are meshed with the screening belt (201) through sieve holes provided on the screening belt (201); The driving structure (3) comprises a gear (304), the end of the transmission shaft (204) is fixedly connected to the gear (304), the side of the gear (304) is meshed with a rack (305), the top side of the rack (305) is provided with a translation plate (303), the translation plate (303) and the treatment tank (1) are slidably connected, a motor (301) is installed on the top side of the treatment tank (1), the end of the motor (301) is fixedly connected to a driving wheel (302) via a coupling, the bottom side of the driving wheel (302) is fixedly connected to a sliding column (307), a driving groove (306) is provided in the middle of the translation plate (303), and the sliding column (307) is slidably connected to the translation plate (303) via the driving groove (306); The connection structure (4) comprises a first inclined rod (404), the inner side of the treatment pool (1) is slidably connected to the first inclined rod (404), the side of the first inclined rod (404) is slidably connected to the second inclined rod (405), the second inclined rod (405) and the treatment pool (1) are fixedly connected, the first inclined rod (404) and the second inclined rod (405) both penetrate the translation plate (303), the rack (305) and the translation plate (303) are slidably connected, the side of the rack (305) is fixedly connected to a pushing block (402), the pushing block (402) and the translation plate (303) are fixedly connected to a first spring (403), and the end of the pushing block (402) contacts the side of the first inclined rod (404); A traction block (406) is slidably connected to the side of the treatment tank (1), a notch (407) is provided on the side of the traction block (406), a pulley (408) is rotatably connected to the end of the first inclined rod (404), the pulley (408) is rollingly connected to the traction block (406) through the notch (407), a first screw (401) is rotatably connected to the side of the traction block (406), and the first screw (401) is threadedly connected to the treatment tank (1); The closed structure (6) comprises a gate plate (601), a gate plate (601) is provided on each side of the screening belt (201), the gate plate (601) is slidably connected to the processing tank (1), a sealing strip (602) is fixedly connected to the inner side of the processing tank (1), the side of the gate plate (601) is slidably connected to the processing tank (1) via the sealing strip (602), a thread groove (609) is provided on the side of the gate plate (601), a second screw rod (603) is rotatably connected to the inner side of the processing tank (1), and the second screw rod (603) is threadedly connected to the gate plate (601) via the thread groove (609); The middle of the second screw (603) is fixedly connected to a first pulley (604), the inner side of the treatment pool (1) is rotatably connected to a worm wheel (607), the side of the worm wheel (607) is fixedly connected to a second pulley (606), a transmission belt (605) is sleeved between the first pulley (604) and the second pulley (606), and a worm (608) is meshed on the side of the worm wheel (607); The switching structure (8) comprises a driving shaft (805), the inner side of the treatment tank (1) is rotatably connected with the driving shaft (805), the driving shaft (805) is rotatably connected to worms (608) arranged on both sides, the ends of the worms (608) are provided with connecting grooves (804), a connecting shaft (803) is provided between the two worms (608), the connecting shaft (803) and the driving shaft (805) are slidably connected, the connecting shaft (803) and the treatment tank (1) are rotatably connected, two ends of the connecting shaft (803) are slidably connected with a synchronization block (807), a third spring (808) is fixedly connected between the synchronization block (807) and the connecting shaft (803), and the synchronization block (807) is slidably connected to the worms (608) via the connecting grooves (804); The two sides of the connecting shaft (803) are rotatably connected to a resistance block (801), a switching block (802) is provided between the two resistance blocks (801), the switching block (802) is rotatably connected to the treatment tank (1), a matching groove (809) is provided on the side of the resistance block (801), the end of the switching block (802) is in contact with the adjacent resistance block (801) through the matching groove (809), and the two ends of the driving shaft (805) are fixedly connected to a rocker (806).

2. A self-cleaning wastewater treatment device according to claim 1, characterized in that: The water inlet structure (7) comprises a water inlet pipe (702), the end of the treatment tank (1) is rotatably connected to the water inlet pipe (702), a plurality of positioning grooves (704) are provided on the side of the water inlet pipe (702), a positioning block (703) is slidably connected to the inner side of the treatment tank (1), a second spring (705) is fixedly connected between the positioning block (703) and the treatment tank (1), the end of the positioning block (703) is in contact with the water inlet pipe (702) via the positioning groove (704), the top side of the treatment tank (1) is threadedly connected to a third screw rod (701), and the end of the third screw rod (701) is in contact with the positioning block (703).

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