Recycled water treatment device

Abstract

The invention provides a reclaimed water treatment device, and belongs to the technical field of sewage treatment.The reclaimed water treatment device comprises a box body, a flexible filter screen, a first winding roller, a second winding roller and a second driving assembly.The bottom of the inner side of the box body is fixedly provided with two sets of partition plates, and a water storage chamber is formed between the two sets of partition plates; a sundry storage chamber is formed by the sides, away from each other, of the two sets of partition plates, the first winding roller and the second winding roller are rotationally arranged in the two sets of sundry storage chambers correspondingly, one end of the flexible filter screen is arranged outside the first winding roller in a winding mode, and the other end of the flexible filter screen crosses over the upper portion of the water storage chamber and is arranged outside the second winding roller in a winding mode; the second driving assembly is installed on the outer wall of the box body. Compared with the prior art, the embodiment of the invention has the advantages that automatic impurity removal of the reclaimed water can be realized, and automatic online cleaning can be performed on the flexible filter screen in the impurity removal process, so that the flexible filter screen is prevented from being blocked by impurities, and the impurity removal efficiency of the reclaimed water is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a reclaimed water treatment device. Background Art

[0002] At present, with the continuous increase of domestic water consumption and the increasing scarcity of water resources, it is necessary to treat sewage to obtain recycled water for use in areas such as green plant irrigation and industrial water use.

[0003] Since sewage usually contains a lot of debris, it is necessary to filter out the debris when treating the sewage so as to obtain cleaner recycled water. In the prior art, the means for filtering out debris in sewage is mostly to allow the sewage to pass through the built-in filter of the filtering equipment, and use the filter to intercept and filter the debris in the sewage. However, as the filter filters the sewage for a long time, the debris intercepted on one side accumulates more and more, which can easily cause the filter to be blocked, resulting in the subsequent sewage being unable to pass through the filter smoothly. Therefore, after the filter has filtered the sewage for a certain period of time, the filtering equipment needs to be shut down and the filter needs to be disassembled for cleaning. However, the shutdown of the filtering equipment and the disassembly and cleaning of the filter will affect the filtering efficiency of sewage debris, which is not conducive to the efficient filtering of sewage debris. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a reclaimed water treatment device.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A reclaimed water treatment device comprises a housing, a flexible filter screen, a first roller, a second roller and a second drive assembly. Two groups of partitions are fixedly arranged at the bottom of the inner side of the box body, a water storage chamber is formed between the two groups of partitions, and a sundries storage chamber is formed on the side away from each other of the two groups of partitions. The first roller and the second roller are rotatably arranged inside the two groups of debris storage chambers, respectively. One end of the flexible filter is wound around the outside of the first roller, and the other end passes over the water storage chamber and is wound around the outside of the second roller. The second driving assembly is mounted on the outer wall of the box body and is used to drive the first roller and the second roller to rotate forward and reverse. When the first roller and the second roller rotate forward, the first roller unwinds the flexible filter net, and the second roller rewinds the flexible filter net, so as to guide the debris on the flexible filter net into the debris storage chamber where the second roller is located. When the first roller and the second roller rotate in opposite directions, the first roller reels the flexible filter net and the second roller unwinds the flexible filter net, so as to guide the debris on the flexible filter net into the debris storage chamber where the first roller is located.

[0006] As a further improvement of the present invention: the second driving assembly includes an incomplete gear, a motor, a first transmission gear and a second transmission gear, The motor is mounted on the back of the box, the incomplete gear is arranged at the output end of the motor, the first transmission gear and the second transmission gear are respectively arranged on opposite sides of the incomplete gear and can alternately mesh with the incomplete gear, a first shaft is fixedly arranged on the side wall of the first transmission gear, an end of the first shaft away from the first transmission gear extends to the interior of the box and is connected to the first roller, and a second shaft is fixedly arranged on the side wall of the second transmission gear, an end of the second shaft away from the second transmission gear extends to the interior of the box and is connected to the second roller.

[0007] As a further improvement of the present invention: a U-shaped bracket plate is fixedly provided on the back of the box body, the motor is fixedly mounted on the side wall of the U-shaped bracket plate, and the incomplete gear is located on the inner side of the U-shaped bracket plate.

[0008] As a further improvement of the present invention: two groups of guide rollers are rotatably arranged on the inner wall of the box body, one group of guide rollers is correspondingly arranged above the first roller and away from the second roller, and the other group of guide rollers is correspondingly arranged above the second roller and away from the first roller, and the two groups of guide rollers are used to provide guidance for the flexible filter net, so that the flexible filter net is in an inclined state above the two groups of sundry storage chambers.

[0009] As a further improvement of the present invention: a first driving component and an air supply component are further provided inside the box body, one end of the air supply component extends above the first roller, and the other end extends above the second roller, and the first driving component is used to control the air supply direction of the air supply component. When the first roller and the second roller rotate in the forward direction, the first driving component drives the air supply component to supply air toward the second roller, so that the air passes through the flexible filter between the second roller and the corresponding guide roller in the reverse direction. When the first roller and the second roller rotate in opposite directions, the first driving assembly drives the air supply assembly to supply air toward the first roller, so that the air passes through the flexible filter between the first roller and the corresponding guide roller in the opposite direction.

[0010] As a further improvement of the present invention: the air supply assembly includes an exhaust pipe, a piston pipe, a plunger rod and a first support rod, The exhaust pipes are provided with two groups, one end of the first support rod is fixedly connected to the inner wall of the box, and the other end is rotatably connected to the middle position of the piston tube, one end of the piston tube extends to the top of the first roller and is connected to one group of the exhaust pipes, and the other end extends to the top of the second roller and is connected to the other group of the exhaust pipes, the two groups of exhaust pipes are distributed along the width direction of the flexible filter net, and a plurality of exhaust holes are opened at one end of the two groups of exhaust pipes away from the piston tube. The plunger rod is movably disposed inside the piston tube. When the first roller and the second roller rotate in the forward direction, the first driving assembly drives the piston tube to rotate forward to an inclined state compared to the first support rod. When the first roller and the second roller rotate in opposite directions, the first driving assembly drives the piston tube to rotate in the opposite direction to the first support rod to a tilted state.

[0011] As a further improvement of the present invention: a through hole is opened on the back of the box body, and a guide rod is fixedly arranged on the bottom of the piston tube. The first driving assembly includes a sliding sleeve, a telescopic rod, a first extension rod, an elastic member, a second support rod, a support sleeve and a second extension rod. The sliding sleeve is slidably mounted on the outside of the guide rod, the upper end of the telescopic rod is hingedly connected to the bottom of the sliding sleeve, and the lower end extends from the top of the support sleeve to the inside of the support sleeve and telescopically cooperates with the support sleeve. The elastic member is arranged inside the support sleeve to provide elastic support for the telescopic rod, one end of the second support rod is fixedly connected to the first support rod, and the other end is rotatably connected to the side wall of the support sleeve, one end of the first extension rod and the second extension rod is fixedly connected to the side wall of the support sleeve, and the other end extends from the through opening to the outside of the box body, The connection point between the first extension rod and the support sleeve is A, the connection point between the second support rod and the support sleeve is B, and the connection point between the second extension rod and the support sleeve is C, wherein point A is located above point B, and point C is located below point B. A first push block and a second push block are fixedly provided at an eccentric position on one side of the incomplete gear facing the box body, and a distance between the first push block and the center of the incomplete gear is smaller than a distance between the second push block and the center of the incomplete gear.

[0012] As a further improvement of the present invention: the elastic member is a spring or a metal spring.

[0013] As a further improvement of the present invention: the first push block and the second push block are both made of flexible materials.

[0014] As a further improvement of the present invention: a water inlet is provided on the top of the box body, and a water outlet communicating with the water storage chamber is provided on the lower front side of the box body.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the embodiment of the present invention, when it is necessary to filter out debris in sewage to obtain recycled water, the sewage can be passed from the top of the box to the inside of the box. After the sewage enters the inside of the box, it passes through the flexible filter mesh from top to bottom and falls into the water storage chamber for storage. During this process, the debris in the sewage is intercepted by the flexible filter mesh and then retained on the upper part of the flexible filter mesh, thereby achieving the filtration of sewage debris. During the above process, the first roller and the second roller are driven by the second driving component to rotate forward and reversely. When the first roller and the second roller rotate forward, the first roller unwinds the flexible filter mesh and the second roller rewinds the flexible filter mesh, so that the flexible filter mesh runs in the direction of the second roller, so that the debris retained on the upper part of the flexible filter mesh is automatically unloaded into the filter. Inside the debris storage chamber where the second roller is located, when the first roller and the second roller rotate in opposite directions, the first roller reels in the flexible filter net and the second roller unwinds the flexible filter net, so that the flexible filter net runs in the direction of the first roller to unload the debris trapped on the upper part of the flexible filter net into the debris storage chamber where the first roller is located. In this way, the reciprocating movement of the flexible filter net can be achieved through the forward and reverse rotation of the first roller and the second roller, thereby achieving automatic cleaning of the debris on the upper part of the flexible filter net. Compared with the prior art, automatic impurity removal of recycled water can be achieved, and the flexible filter net can also be automatically cleaned online during the impurity removal process, thereby avoiding debris clogging the flexible filter net and improving the impurity removal efficiency of recycled water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the front side of a box in a reclaimed water treatment device; Figure 2 It is a schematic diagram of the structure inside a box in a reclaimed water treatment device; Figure 3 It is a structural schematic diagram of the back side of a box in a reclaimed water treatment device; Figure 4 It is a structural schematic diagram of a second driving component in a reclaimed water treatment device; Figure 5 for Figure 2 A magnified schematic diagram of the middle A area; Figure 6 for Figure 2 A magnified schematic diagram of the middle B area; Figure 7for Figure 2 Enlarged schematic diagram of the middle C area; In the figure: 10-box, 101-water inlet, 102-drainage outlet, 103-guide roller, 104-partition, 105-sundry storage chamber, 106-water storage chamber, 107-U-shaped bracket plate, 108-through port, 20-flexible filter screen, 30-first roller, 40-air supply assembly, 401-exhaust pipe, 402-piston pipe, 403-exhaust hole, 404-plunger rod, 405-first support rod, 406-guide rod, 50-first drive assembly , 501-sliding sleeve, 502-telescopic rod, 503-first extension rod, 504-elastic member, 505-second support rod, 506-support sleeve, 507-second extension rod, 60-second roller, 70-second drive assembly, 701-incomplete gear, 702-motor, 703-first transmission gear, 704-second transmission gear, 705-first push block, 706-second push block, 707-first shaft rod, 708-second shaft rod. DETAILED DESCRIPTION

[0017] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1 , Figure 2 as well as Figure 3The present embodiment provides a reclaimed water treatment device, including a housing 10, a flexible filter screen 20, a first roller 30, a second roller 60 and a second drive assembly 70. Two groups of partitions 104 are fixedly arranged at the bottom of the inner side of the housing 10, a water storage chamber 106 is formed between the two groups of partitions 104, and a debris storage chamber 105 is formed on the side away from each other of the two groups of partitions 104. The first roller 30 and the second roller 60 are rotatably arranged inside the two groups of debris storage chambers 105, respectively. One end of the flexible filter screen 20 is wound around the outside of the first roller 30, and the other end passes over the water storage chamber 106 and is wound around the outside of the second roller 60. The second drive assembly 70 is installed on the outer wall of the housing 10 to drive the The first roller 30 and the second roller 60 rotate forward and reversely. When the first roller 30 and the second roller 60 rotate forward, the first roller 30 unwinds the flexible filter net 20, and the second roller 60 rewinds the flexible filter net 20, so as to guide the debris on the upper part of the flexible filter net 20 into the debris storage chamber 105 where the second roller 60 is located. When the first roller 30 and the second roller 60 rotate reversely, the first roller 30 rewinds the flexible filter net 20, and the second roller 60 unwinds the flexible filter net 20, so as to guide the debris on the upper part of the flexible filter net 20 into the debris storage chamber 105 where the first roller 30 is located.

[0022] When it is necessary to filter out the impurities in the sewage to obtain recycled water, the sewage can be passed from the top of the box body 10 to the inside of the box body 10. After the sewage enters the inside of the box body 10, it passes through the flexible filter mesh 20 from top to bottom and falls into the water storage chamber 106 for storage. In this process, the impurities in the sewage are intercepted by the flexible filter mesh 20 and then retained on the upper part of the flexible filter mesh 20, thereby achieving the filtration of sewage impurities. In the above process, the first roller 30 and the second roller 60 are driven to rotate forward and reversely by the second driving component 70. When the first roller 30 and the second roller 60 rotate forward, the first roller 30 unwinds the flexible filter mesh 20, and the second roller 60 rewinds the flexible filter mesh 20, so that the flexible filter mesh 20 is moved to the upper part of the flexible filter mesh 20. The first roller 30 and the second roller 60 rotate in the opposite directions, so that the first roller 30 reels the flexible filter net 20 and the second roller 60 unwinds the flexible filter net 20, so that the flexible filter net 20 runs in the direction of the first roller 30 to unload the debris retained on the upper part of the flexible filter net 20 into the debris storage chamber 105 where the first roller 30 is located. In this way, the reciprocating movement of the flexible filter net 20 can be achieved through the forward and reverse rotation of the first roller 30 and the second roller 60, thereby achieving automatic cleaning of the debris on the upper part of the flexible filter net 20.

[0023] See also Figure 3 as well as Figure 4 In one embodiment, the second driving assembly 70 includes an incomplete gear 701, a motor 702, a first transmission gear 703 and a second transmission gear 704, the motor 702 is installed on the back of the box body 10, the incomplete gear 701 is arranged at the output end of the motor 702, the first transmission gear 703 and the second transmission gear 704 are respectively arranged on opposite sides of the incomplete gear 701 and can alternately mesh with the incomplete gear 701, a first shaft rod 707 is fixedly provided on the side wall of the first transmission gear 703, an end of the first shaft rod 707 away from the first transmission gear 703 extends to the inside of the box body 10 and is connected to the first winding roller 30, a second shaft rod 708 is fixedly provided on the side wall of the second transmission gear 704, an end of the second shaft rod 708 away from the second transmission gear 704 extends to the inside of the box body 10 and is connected to the second winding roller 60.

[0024] The incomplete gear 701 is driven to rotate by the motor 702. When the incomplete gear 701 is meshed with the second transmission gear 704, the second roller 60 can be driven to rotate forwardly through the second transmission gear 704 and the second shaft 708. When the second roller 60 rotates forwardly, the flexible filter screen 20 is rolled up. At the same time, the first roller 30 is pulled and then rotates forward synchronously to unwind the flexible filter screen 20, so that the flexible filter screen 20 runs toward the second roller 60. When the flexible filter screen 20 runs, the debris on the upper part of the flexible filter screen 20 gradually moves toward the second roller 60, and finally falls from one side of the second roller 60 into the corresponding debris storage chamber 105. When the incomplete gear 701 is disengaged from the second transmission gear 704, it can enter into a meshing state with the first transmission gear 703. At this time, the first roller 30 is driven to rotate in the opposite direction through the first transmission gear 703 and the first shaft 707. When the first roller 30 rotates in the opposite direction, the flexible filter net 20 is rolled up. At the same time, the second roller 60 is pulled and rotates in the opposite direction synchronously to unwind the flexible filter net 20, so that the flexible filter net 20 runs toward the first roller 30. When the flexible filter net 20 runs, the debris on the upper part of the flexible filter net 20 gradually moves toward the first roller 30, and finally falls from the side of the first roller 30 into the corresponding debris storage chamber 105.

[0025] See also Figure 3 In one embodiment, a U-shaped bracket plate 107 is fixedly provided on the back of the box body 10 , the motor 702 is fixedly mounted on the side wall of the U-shaped bracket plate 107 , and the incomplete gear 701 is located on the inner side of the U-shaped bracket plate 107 .

[0026] When the first roller 30 and the second roller 60 are reeling up the flexible filter 20, the flexible filter 20 will be in a multi-layer state outside the first roller 30 and the second roller 60. Therefore, some debris that follows the flexible filter 20 and moves to the upper part of the first roller 30 and the second roller 60 is easily rolled into the space between the two layers of the flexible filter 20 because it fails to fall down in time, so that the debris cannot be cleaned smoothly. Based on this, please refer to Figure 2 In one embodiment, two groups of guide rollers 103 are rotatably arranged on the inner wall of the box body 10, wherein one group of guide rollers 103 is correspondingly arranged above the first roller 30 and away from the second roller 60, and the other group of guide rollers 103 is correspondingly arranged above the second roller 60 and away from the first roller 30. The two groups of guide rollers 103 are used to provide guidance for the flexible filter net 20, so that the flexible filter net 20 is in an inclined state above the two groups of sundry storage chambers 105.

[0027] When the first roller 30 and the second roller 60 cooperate to drive the flexible filter screen 20 to run, the flexible filter screen 20 can drive the two groups of guide rollers 103 to rotate adaptively. When the debris follows the flexible filter screen 20 to move to the upper position of the guide roller 103, it can continue to follow the flexible filter screen 20 to move toward the first roller 30 and the second roller 60. At this time, since the flexible filter screen 20 is in an inclined state above the two groups of debris storage chambers 105, the debris following the flexible filter screen 20 can obtain sufficient falling time, thereby avoiding the debris from being rolled into the space between the two layers of flexible filter screens 20, thereby improving the debris cleaning effect.

[0028] See also Figure 2 In one embodiment, a first driving assembly 50 and an air supply assembly 40 are further provided inside the box body 10, one end of the air supply assembly 40 extends above the first roller 30, and the other end extends above the second roller 60. The first driving assembly 50 is used to control the air supply direction of the air supply assembly 40. When the first roller 30 and the second roller 60 rotate forward, the first driving assembly 50 drives the air supply assembly 40 to supply air in the direction of the second roller 60, so that the air passes through the flexible filter net 20 between the second roller 60 and the corresponding guide roller 103 in the reverse direction to blow away the debris on one side of the flexible filter net 20. When the first roller 30 and the second roller 60 rotate in the reverse direction, the first driving assembly 50 drives the air supply assembly 40 to supply air in the direction of the first roller 30, so that the air passes through the flexible filter net 20 between the first roller 30 and the corresponding guide roller 103 in the reverse direction to blow away the debris on one side of the flexible filter net 20.

[0029] See also Figure 2 , Figure 5 , Figure 6 as well as Figure 7In one embodiment, the air supply assembly 40 includes an exhaust pipe 401, a piston tube 402, a plunger rod 404 and a first support rod 405. The exhaust pipe 401 is provided with two groups. One end of the first support rod 405 is fixedly connected to the inner wall of the box body 10, and the other end is rotatably connected to the middle position of the piston tube 402. One end of the piston tube 402 extends to the top of the first roller 30 and is connected to one group of the exhaust pipes 401, and the other end extends to the top of the second roller 60 and is connected to the other group of the exhaust pipes 401. The two groups of exhaust pipes 401 are distributed along the width direction of the flexible filter net 20. A plurality of exhaust holes 403 are provided at one end of the two groups of exhaust pipes 401 away from the piston tube 402. The plunger rod 404 is movably arranged inside the piston tube 402. When the first roller 30 and the second roller 60 rotate forward, the first driving assembly 50 drives the piston tube 402 to rotate forward to an inclined state compared to the first support rod 405. At this time, the plunger rod 40 4 slides along the piston tube 402 toward the second roller 60 under the influence of gravity, so as to pressurize the air inside the piston tube 402 to the exhaust pipe 401 close to the second roller 60, and then discharge it from the exhaust holes 403 on one side of the exhaust pipe 401, and then reversely pass through the flexible filter screen 20 between the second roller 60 and the corresponding guide roller 103, so as to realize the back-blowing cleaning of the debris on one side of the flexible filter screen 20. When the first roller 30 and the second roller 60 rotate in the opposite direction, the first driving component 50 drives The piston tube 402 rotates in the opposite direction to the first support rod 405 to an inclined state. At this time, the plunger rod 404 slides along the inside of the piston tube 402 toward the first roller 30 under the influence of gravity, so as to pressurize the air inside the piston tube 402 to the exhaust pipe 401 close to the first roller 30, and then be discharged from a plurality of exhaust holes 403 on one side of the exhaust pipe 401, and then reversely pass through the flexible filter net 20 between the first roller 30 and the corresponding guide roller 103, so as to realize backblowing and cleaning of debris on one side of the flexible filter net 20.

[0030] See also Figure 4 , Figure 6 as well as Figure 7In one embodiment, a through hole 108 is provided on the back of the box body 10, a guide rod 406 is fixedly provided at the bottom of the piston tube 402, the first driving assembly 50 includes a sliding sleeve 501, a telescopic rod 502, a first extension rod 503, an elastic member 504, a second support rod 505, a support sleeve 506 and a second extension rod 507, the sliding sleeve 501 is slidably sleeved on the outside of the guide rod 406, the upper end of the telescopic rod 502 is hingedly connected to the bottom of the sliding sleeve 501, and the lower end extends from the top of the support sleeve 506 to the inside of the support sleeve 506 and telescopically cooperates with the support sleeve 506, the elastic member 504 is arranged inside the support sleeve 506, and is used to provide elastic support for the telescopic rod 502, one end of the second support rod 505 is fixedly connected to the first support rod 405, and the other end is fixedly connected to the support sleeve 506 side wall is rotatably connected, one end of the first extension rod 503 and the second extension rod 507 are fixedly connected to the side wall of the support sleeve 506, and the other end extends from the through port 108 to the outside of the box body 10, the connection point between the first extension rod 503 and the support sleeve 506 is A, the connection point between the second support rod 505 and the support sleeve 506 is B, and the connection point between the second extension rod 507 and the support sleeve 506 is C, wherein point A is located above point B, and point C is located below point B, and a first push block 705 and a second push block 706 are fixedly provided at an eccentric position on one side of the incomplete gear 701 facing the box body 10, and the distance between the first push block 705 and the center of the incomplete gear 701 is smaller than the distance between the second push block 706 and the center of the incomplete gear 701.

[0031] When the incomplete gear 701 is meshed with the second transmission gear 704 and thus drives the second roller 60 to rotate forwardly, the second push block 706 on one side of the incomplete gear 701 acts on the second extension rod 507, thereby pushing the second extension rod 507 to make the support sleeve 506 rotate clockwise compared to the second support rod 505, thereby driving the telescopic rod 502 to rotate clockwise. When the telescopic rod 502 rotates clockwise, it drives the sliding sleeve 501 to slide rightward along the guide rod 406, so that the thrust applied by the elastic member 504 to the telescopic rod 502 is biased to the middle right position of the piston tube 402. At this time, the elastic member 504 pushes the extension rod 507 to rotate clockwise. The retracting rod 502 moves upward, and then pushes the guide rod 406 through the sliding sleeve 501 to make the piston tube 402 rotate to a positive tilt position compared with the first support rod 405, so that the plunger rod 404 inside the piston tube 402 slides toward the second roller 60, so as to press the air inside the piston tube 402 to the exhaust pipe 401 close to the second roller 60, and then discharge it from a plurality of exhaust holes 403 on one side of the exhaust pipe 401, and then reversely pass through the flexible filter screen 20 between the second roller 60 and the corresponding guide roller 103, so as to realize the back-blowing cleaning of the debris on one side of the flexible filter screen 20; when the incomplete gear 70 When the first transmission gear 703 is engaged with the first transmission gear 703 and the second transmission gear 704 is disengaged, the first roller 30 can be driven to rotate in the opposite direction. The first push block 705 on one side of the incomplete gear 701 acts on the first extension rod 503, thereby pushing the first extension rod 503 to make the support sleeve 506 rotate counterclockwise compared with the second support rod 505, thereby driving the telescopic rod 502 to rotate counterclockwise. When the telescopic rod 502 rotates counterclockwise, the sliding sleeve 501 is driven to slide leftward along the guide rod 406, so that the thrust applied by the elastic member 504 to the telescopic rod 502 is biased to the left position of the middle of the piston tube 402. The elastic member 504 pushes the telescopic rod 502 upward, and then pushes the guide rod 406 through the sliding sleeve 501 to make the piston tube 402 rotate to a reverse tilted position compared to the first support rod 405, so that the plunger rod 404 inside the piston tube 402 slides toward the first roller 30, so as to press the air inside the piston tube 402 to the exhaust pipe 401 close to the first roller 30, and then be discharged from a plurality of exhaust holes 403 on one side of the exhaust pipe 401, and then reversely pass through the flexible filter net 20 between the first roller 30 and the corresponding guide roller 103, so as to realize the back-blowing cleaning of debris on one side of the flexible filter net 20.

[0032] In one embodiment, the elastic member 504 may be a spring or a metal spring, which is not limited here.

[0033] In one embodiment, the first push block 705 and the second push block 706 are both made of flexible materials, such as rubber or silicone, which is not limited here. The first push block 705 made of flexible material allows the first push block 705 to act on the first extension rod 503 to rotate the piston tube 402 to the reverse tilted position, and as the incomplete gear 701 drives the first push block 705 to continue to rotate, the first push block 705 is squeezed by the first extension rod 503 and can be adaptively deformed, thereby smoothly passing over the first extension rod 503. The second push block 706 made of flexible material allows the second push block 706 to act on the second extension rod 507 to rotate the piston tube 402 to the forward tilted position, and as the incomplete gear 701 drives the second push block 706 to continue to rotate, the second push block 706 is squeezed by the second extension rod 507 and can be adaptively deformed, thereby smoothly passing over the second extension rod 507.

[0034] See also Figure 1 as well as Figure 2 In one embodiment, a water inlet 101 is provided at the top of the box body 10 , and a drain outlet 102 connected to the water storage chamber 106 is provided at the lower front portion of the box body 10 .

[0035] In the embodiment of the present invention, when it is necessary to filter out debris in the sewage to obtain recycled water, the sewage can be passed from the top of the box body 10 to the inside of the box body 10. After the sewage enters the inside of the box body 10, it passes through the flexible filter screen 20 from top to bottom and falls into the water storage chamber 106 for storage. During this process, the debris in the sewage is intercepted by the flexible filter screen 20 and then retained on the upper part of the flexible filter screen 20, thereby achieving the filtration of sewage debris; during the above process, the first roller 30 and the second roller 60 are driven by the second driving component 70 to rotate forward and reversely. When the first roller 30 and the second roller 60 rotate forwardly, the first roller 30 unwinds the flexible filter screen 20, and the second roller 60 rewinds the flexible filter screen 20, so that the flexible filter screen 20 runs in the direction of the second roller 60, so as to automatically unload the debris retained on the upper part of the flexible filter screen 20 into the second roller 60. Inside the debris storage chamber 105 where the second roller 60 is located, when the first roller 30 and the second roller 60 rotate in opposite directions, the first roller 30 reels the flexible filter screen 20 and the second roller 60 unwinds the flexible filter screen 20, so that the flexible filter screen 20 runs toward the first roller 30 to unload the debris retained on the upper part of the flexible filter screen 20 into the debris storage chamber 105 where the first roller 30 is located. In this way, the reciprocating movement of the flexible filter screen 20 can be achieved through the forward and reverse rotation of the first roller 30 and the second roller 60, thereby achieving automatic cleaning of the debris on the upper part of the flexible filter screen 20. Compared with the prior art, automatic impurity removal of recycled water can be achieved, and the flexible filter screen 20 can also be automatically cleaned online during the impurity removal process, thereby avoiding debris clogging the flexible filter screen 20 and improving the impurity removal efficiency of recycled water.

[0036] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A reclaimed water treatment device, characterized in that: It includes a box body, a flexible filter screen, a first roller, a second roller and a second driving component. Two groups of partitions are fixedly arranged at the bottom of the inner side of the box body, a water storage chamber is formed between the two groups of partitions, and a sundries storage chamber is formed on the side away from each other of the two groups of partitions. The first roller and the second roller are rotatably arranged inside the two groups of debris storage chambers, respectively. One end of the flexible filter is wound around the outside of the first roller, and the other end passes over the water storage chamber and is wound around the outside of the second roller. The second driving assembly is mounted on the outer wall of the box body and is used to drive the first roller and the second roller to rotate forward and reverse. When the first roller and the second roller rotate forward, the first roller unwinds the flexible filter net, and the second roller rewinds the flexible filter net, so as to guide the debris on the flexible filter net into the debris storage chamber where the second roller is located. When the first roller and the second roller rotate in opposite directions, the first roller reels the flexible filter net and the second roller unwinds the flexible filter net, so as to guide the debris on the flexible filter net into the debris storage chamber where the first roller is located.

2. A reclaimed water treatment device according to claim 1, characterized in that: The second driving assembly includes an incomplete gear, a motor, a first transmission gear and a second transmission gear. The motor is mounted on the back of the box, the incomplete gear is arranged at the output end of the motor, the first transmission gear and the second transmission gear are respectively arranged on opposite sides of the incomplete gear and can alternately mesh with the incomplete gear, a first shaft is fixedly arranged on the side wall of the first transmission gear, an end of the first shaft away from the first transmission gear extends to the interior of the box and is connected to the first roller, and a second shaft is fixedly arranged on the side wall of the second transmission gear, an end of the second shaft away from the second transmission gear extends to the interior of the box and is connected to the second roller.

3. A reclaimed water treatment device according to claim 2, characterized in that: A U-shaped bracket plate is fixedly arranged on the back of the box body, the motor is fixedly mounted on the side wall of the U-shaped bracket plate, and the incomplete gear is located on the inner side of the U-shaped bracket plate.

4. A reclaimed water treatment device according to claim 2, characterized in that: Two groups of guide rollers are rotatably arranged on the inner wall of the box body, one group of guide rollers is correspondingly arranged at a position above the first roller and away from the second roller, and the other group of guide rollers is correspondingly arranged at a position above the second roller and away from the first roller. The two groups of guide rollers are used to provide guidance for the flexible filter net, so that the flexible filter net is in an inclined state above the two groups of sundry storage chambers.

5. A reclaimed water treatment device according to claim 4, characterized in that: A first driving component and an air supply component are also provided inside the box. One end of the air supply component extends above the first roller, and the other end extends above the second roller. The first driving component is used to control the air supply direction of the air supply component. When the first roller and the second roller rotate in the forward direction, the first driving component drives the air supply component to supply air toward the second roller, so that the air passes through the flexible filter between the second roller and the corresponding guide roller in the reverse direction. When the first roller and the second roller rotate in opposite directions, the first driving assembly drives the air supply assembly to supply air toward the first roller, so that the air passes through the flexible filter between the first roller and the corresponding guide roller in the opposite direction.

6. A reclaimed water treatment device according to claim 5, characterized in that: The air supply assembly includes an exhaust pipe, a piston pipe, a plunger rod and a first support rod. The exhaust pipes are provided with two groups, one end of the first support rod is fixedly connected to the inner wall of the box, and the other end is rotatably connected to the middle position of the piston tube, one end of the piston tube extends to the top of the first roller and is connected to one group of the exhaust pipes, and the other end extends to the top of the second roller and is connected to the other group of the exhaust pipes, the two groups of exhaust pipes are distributed along the width direction of the flexible filter net, and a plurality of exhaust holes are opened at one end of the two groups of exhaust pipes away from the piston tube. The plunger rod is movably disposed inside the piston tube. When the first roller and the second roller rotate in the forward direction, the first driving assembly drives the piston tube to rotate forward to an inclined state compared to the first support rod. When the first roller and the second roller rotate in opposite directions, the first driving assembly drives the piston tube to rotate in the opposite direction to the first support rod to a tilted state.

7. A reclaimed water treatment device according to claim 6, characterized in that: The back of the box is provided with a through opening, and the bottom of the piston tube is fixedly provided with a guide rod. The first driving assembly includes a sliding sleeve, a telescopic rod, a first extension rod, an elastic member, a second support rod, a support sleeve and a second extension rod. The sliding sleeve is slidably mounted on the outside of the guide rod, the upper end of the telescopic rod is hingedly connected to the bottom of the sliding sleeve, and the lower end extends from the top of the support sleeve to the inside of the support sleeve and telescopically cooperates with the support sleeve. The elastic member is arranged inside the support sleeve to provide elastic support for the telescopic rod, one end of the second support rod is fixedly connected to the first support rod, and the other end is rotatably connected to the side wall of the support sleeve, one end of the first extension rod and the second extension rod is fixedly connected to the side wall of the support sleeve, and the other end extends from the through opening to the outside of the box body, The connection point between the first extension rod and the support sleeve is A, the connection point between the second support rod and the support sleeve is B, and the connection point between the second extension rod and the support sleeve is C, wherein point A is located above point B, and point C is located below point B. A first push block and a second push block are fixedly provided at an eccentric position on one side of the incomplete gear facing the box body, and a distance between the first push block and the center of the incomplete gear is smaller than a distance between the second push block and the center of the incomplete gear.

8. A reclaimed water treatment device according to claim 7, characterized in that: The elastic member is a spring or a metal spring.

9. A reclaimed water treatment device according to claim 7, characterized in that: The first pushing block and the second pushing block are both made of flexible materials.

10. A reclaimed water treatment device according to claim 1, characterized in that: A water inlet is provided on the top of the box body, and a drain outlet communicated with the water storage chamber is provided on the lower front side of the box body.

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