Multi-stage sewage purification equipment with anti-blocking and filtering functions

Abstract

The invention discloses multi-stage sewage purification equipment with an anti-blocking filtering function, and relates to the technical field of sewage purification. Comprising a liquid inlet system, a liquid discharge system, a control system and a barrel, the upper end of the barrel is connected with a liquid inlet pipe, the lower end of the barrel is connected with a liquid outlet pipe, and the liquid inlet pipe and the liquid outlet pipe are connected with the liquid inlet system and the liquid discharge system respectively; a cross rod is mounted on the two groups of fixed discs, three groups of sliding cylinders are sequentially mounted on the cross rod, rotating rods A and rotating rods B are mounted on the three groups of sliding cylinders, a filter membrane A is mounted between the two groups of fixed discs, and a filter membrane B is mounted on a vibration spring; the filtering membrane A and the filtering membrane B realize multi-stage filtration of sewage, the cross rod adjusts the filtering range of the filtering membrane A, and the vibration spring ensures the filtering effect of the filtering membrane B.

Description

Technical Field

[0001] The invention relates to the technical field of sewage purification, in particular to a multi-stage sewage purification device with an anti-blocking filtering function. Background Art

[0002] ‌Sewage purification equipment is a type of equipment used to treat domestic and industrial wastewater to meet specified water quality requirements and achieve wastewater reuse. ‌These equipment remove pollutants from sewage through physical, chemical and biological methods to ensure that the treated water quality meets discharge standards or can be reused.‌

[0003] Sewage needs to be filtered and treated, usually using a filter membrane. Existing sewage treatment devices have the following main problems: (1) multi-stage filtration cannot be achieved, making it difficult to meet usage requirements; (2) the filter membrane is very easy to clog, which in turn causes damage to the filter membrane. Summary of the invention

[0004] The object of the present invention is to provide a multi-stage sewage purification device with anti-clogging filtering function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-stage sewage purification equipment with anti-blocking filtering function, comprising a liquid inlet system, a liquid discharge system and a control system, comprising a cylinder, the upper end of the cylinder is connected to a liquid inlet pipe, the lower end of the cylinder is connected to a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are respectively connected to the liquid inlet system and the liquid discharge system, a transmission shaft is vertically installed in the cylinder, two groups of fixed disks are mirror-mounted on the upper end of the transmission shaft, a vibration spring is installed on the lower end of the transmission shaft, a cross bar is installed on the two groups of the fixed disks, three groups of sliding cylinders are sequentially installed on the cross bar, the three groups of sliding cylinders are all installed with a rotating rod A and a rotating rod B, a filter membrane A is installed between the two groups of the fixed disks, and a filter membrane B is installed on the vibration spring; The liquid inlet system transports the sewage into the liquid inlet pipe, and the liquid discharge system extracts the filtered sewage outward through the liquid outlet pipe. The filter membrane A and the filter membrane B realize multi-stage filtration of the sewage. The cross bar adjusts the filtration range of the filter membrane A, and the vibration spring ensures the filtration effect of the filter membrane B.

[0006] An annular groove is provided on the inner wall of the cylinder outside the two groups of fixed disks, and multiple groups of annular plates are slidably installed in the annular grooves. The annular plates slide in the annular grooves. Multiple groups of brackets are provided on the side away from each other of the two groups of fixed disks. The multiple groups of annular plates and the multiple groups of brackets correspond one to one. Multiple groups of cross bars are provided, and the two ends of the multiple groups of cross bars are rotatably installed on the brackets and the annular plates through bearings respectively. The cross bar is supported by the annular plates and the brackets. A first thread and a second thread are provided on the cross bar, and the first thread is located on one side of the second thread. The sliding cylinder is sleeved on the cross bar, and the cross bar close to one end of the bracket is connected to the output shaft of the adjusting motor, and the adjusting motor is installed on the bracket.

[0007] The upper ends of the three groups of sliding cylinders are all provided with columns, and the rotating rods A and B are respectively rotatably installed on the columns through bearings. The rotating rod A is located on the upper side of the rotating rod B, and the middle group of sliding cylinders is installed on the cross bar. The sliding cylinder on the left is threadedly connected to the cross bar through a first thread, and the sliding cylinder on the right is threadedly connected to the cross bar through a second thread, and the first thread and the second thread have opposite rotation directions.

[0008] A vertical shaft is provided between the rotating rod A and the rotating rod B in the upper and lower sets of the fixed plates, and the vertical shaft is provided in multiple sets; A flexible membrane is provided in the gap between the rotating rod A and the rotating rod B. The flexible membrane is made of a flexible material. The flexible membrane blocks the gap between the rotating rod A and the rotating rod B. The flexible membrane has a certain elasticity. The filter membrane A is provided between two adjacent vertical axes. A filter chamber is formed between the rotating rod A, the rotating rod B, the flexible membrane and the filter membrane A. The longitudinal section of the filter chamber is square.

[0009] Press the start button on the control panel to start the equipment. The staff transports the sewage into the cylinder through the liquid inlet system and the liquid inlet pipe. After the sewage enters the cylinder, it is located on the upper side of the partition. The liquid inlet system feeds back the sewage flow data to the control system. The control system controls the drive motor to drive the transmission shaft to rotate N circles forward and backward. The transmission shaft drives the adjustment motor and the cross bar to rotate through the fixed plate. The cross bar drives the sliding cylinder to rotate. The sliding cylinder drives the rotating rod A, the rotating rod B and the vertical axis to rotate. The rotating rod A, the rotating rod B and the vertical axis synchronously drive the filter membrane A to rotate. The rotating filter membrane A impacts the sewage, and impurities cannot be easily deposited on the filter membrane A. The liquid passes through the filter membrane A and enters the filter chamber, while the impurities are blocked by the filter membrane A and cannot pass through the filter membrane A. While the driving motor drives the transmission shaft to rotate, the encoder in the driving motor feeds back the rotation data to the control system. The control system controls the operation of the drainage system and the opening of the solenoid valve in the delivery port. The drainage system draws the liquid in the filter chamber into the delivery port through the first pipeline and the air slip ring through the liquid outlet pipe, and the liquid is delivered to the lower side of the partition through the delivery port.

[0010] After the sewage filtered by filter membrane A is transported to the lower side of the partition, the sewage contacts filter membrane B. At this time, the control system passes forward current and reverse current into the vibration spring according to the switch data of the solenoid valve in the delivery port. When the vibration spring passes forward current, the forward magnetic field generated at both ends of the vibration spring and the magnetic material at the bottom of the cylinder repel each other. Under the action of repulsive force, the vibration spring slides upward in the sliding groove through the pole. When the vibration spring passes reverse current, the reverse magnetic field generated at both ends of the vibration spring attracts each other with the magnetic material at the bottom of the cylinder. Under the action of attractive force, the vibration spring slides downward in the sliding groove through the pole. The control system continuously passes forward current and reverse current into the vibration spring, so that the vibration spring drives the filter membrane B to vibrate, so that the liquid on the filter membrane B passes through faster, and the impurities are bounced off by the filter membrane B, thereby ensuring the filtering effect of the filter membrane B while improving the filtering efficiency. After that, the sewage is filtered by the filter membrane B and discharged from the liquid outlet pipe to the drainage system for further treatment.

[0011] After the sewage is filtered through filter membrane A and filter membrane B, certain impurities will be left. The staff will open the discharge plates above and below the partitions to clean the impurities around filter membrane A and filter membrane B to prevent filter membrane A and filter membrane B from being blocked. Filter membrane A filters out larger impurities. Since filter membrane A continues to rotate forward and backward with the cross bar, filter membrane A is not easy to deposit impurities, which can avoid clogging of filter membrane A. Filter membrane B filters smaller impurities. Since filter membrane B continues to vibrate under the action of the vibration spring, filter membrane B is not easy to deposit impurities, which can avoid clogging of filter membrane B.

[0012] The size of the filter chamber is adjustable. The adjusting motor drives the cross bar to rotate a certain angle. The cross bar drives the sliding cylinder on the left to move right through the first thread, and drives the sliding cylinder on the right to move left through the second thread, so that the distance between the sliding cylinders on both sides is reduced. As the distance between the sliding cylinders on both sides is reduced, the rotating rods A and B on the sliding cylinders on both sides rotate on the cylinder respectively to adapt to the change in the distance between the sliding cylinders on both sides. While the rotating rods A and B rotate, the vertical axes on the rotating rods A and B follow the movement, so that the filter membrane A between the two adjacent vertical axes changes from the original expanded state to the pleated state, so that the filtration range of the filter membrane A is reduced to adapt to different usage occasions.

[0013] A partition is provided in the middle of the cylinder, and the two groups of fixed disks are located above the partition. An air slip ring is installed between the fixed disk and the partition at the lower side, and the air slip ring is installed on the transmission shaft, and the transmission shaft passes through the partition and is installed at the bottom of the cylinder. The air slip ring cooperates with the first pipeline to realize the transmission of filtered sewage, and the sewage in the filter chamber is transported to the delivery port.

[0014] The partition is provided with a plurality of delivery ports, and a solenoid valve is installed in the delivery port, and the solenoid valve is electrically connected to the control system; A first pipe is connected to the filter membrane A near the filter chamber. The first pipe is provided in multiple groups. The filter chamber is connected to the inlet of the air slip ring through the first pipe, and the outlet of the air slip ring is connected to the delivery port through another group of first pipes.

[0015] In the vertical direction, multiple groups of sliding grooves are arranged on the inner wall of the cylinder below the partition; the vibration spring is made of a spiral, and in the horizontal direction, poles are arranged on the outer side of each turn of the vibration spring, and the poles are inserted into the sliding grooves, and the multiple groups of sliding grooves respectively limit the positions of the multiple groups of poles, the filter membrane B is horizontally arranged on the upper end of the vibration spring, and the outer side of the filter membrane B is arranged on the inner wall of the cylinder, and the two ends of the vibration spring are electrically connected to the control system, and the surface of the vibration spring is provided with an insulating outer skin, and the bottom of the cylinder opposite to the vibration spring is provided with a magnetic material, and the magnetic material is in a ring shape. The control system continuously passes positive current and reverse current into the vibration spring, and the two ends of the vibration spring continuously generate positive magnetic fields and reverse magnetic fields. Through the repulsive force and attractive force generated between the positive magnetic field and the reverse magnetic field and the magnetic material at the bottom of the cylinder, the vibration spring continuously vibrates up and down in the sliding groove, and the vibration spring drives the filter membrane B to vibrate continuously to ensure that the filter membrane B has a good filtering effect.

[0016] The filtering effect of the filter membrane B is better than that of the filter membrane A. Both the filter membrane A and the filter membrane B are provided with a plurality of folds.

[0017] Discharge plates are respectively provided on the cylinders on both sides of the partition, and the discharge plates and the cylinders are snap-connected. The staff can open the discharge plates to clean the impurities generated after filtration by the filter membranes A and B to ensure the normal operation of the equipment.

[0018] The upper end of the transmission shaft passes through the cylinder and is connected to the output shaft of the driving motor. The driving motor is installed on the cylinder. A control panel is arranged on the cylinder, and the control system is arranged in the control panel.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. Multi-stage filtration of sewage can meet different usage occasions. The rotating filter membrane A impacts the sewage, and impurities cannot be easily deposited on the filter membrane A. The liquid passes through the filter membrane A into the filter chamber, while the impurities are blocked by the filter membrane A and cannot pass through the filter membrane A. After the sewage is filtered by the filter membrane A, the sewage is filtered by the filter membrane B and then discharged from the liquid outlet pipe to the drainage system, realizing multi-stage filtration of sewage to meet different usage occasions.

[0020] 2. Filter membrane A and filter membrane B are not easy to be blocked, ensuring the filtering effect. The staff opens the discharge plates above and below the partitions, and cleans the impurities around filter membrane A and filter membrane B to prevent filter membrane A and filter membrane B from being blocked. Filter membrane A filters out larger impurities. Since filter membrane A continues to rotate forward and backward with the crossbar, filter membrane A is not easy to deposit impurities, which can avoid filter membrane A from being blocked. Filter membrane B filters smaller impurities. Since filter membrane B continues to vibrate under the action of the vibration spring, filter membrane B is not easy to deposit impurities, which can avoid filter membrane B from being blocked, ensuring the filtering effect of filter membrane A and filter membrane B.

[0021] 3. Filtering is performed while the filter membrane A rotates, which can speed up the sewage treatment process. The filter membrane A is driven by the transmission shaft to continuously rotate forward and reverse, and the impurities are thrown off by the filter membrane A. The impurities cannot be deposited on the filter membrane A. After the filter membrane A or the filter membrane B has been working for a long time, the staff opens the upper and lower discharge plates of the partition to clean the impurities around the filter membrane A and the filter membrane B to prevent the filter membrane A and the filter membrane B from being blocked, thereby improving the sewage treatment speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 yes Figure 1 Side view of Figure 3 yes Figure 2 Schematic diagram of the three-dimensional structure after removing the cylinder, vibration spring and filter membrane B; Figure 4 yes Figure 3 Schematic diagram of the structure after removing part of the filter membrane A, the transmission shaft and the drive motor; Figure 5 yes Figure 4 A partial enlarged view of the middle A area; Figure 6 yes Figure 4 Schematic diagram of the structure after removing the vertical axis and filter membrane A; Figure 7 yes Figure 6 A partial enlarged view of the middle B area; Figure 8 yes Figure 4 Schematic diagram of the installation structure of the gas slip ring; Fig. 9 It is a schematic diagram of the installation structure of the cylinder, vibration spring, filter membrane B and partition plate.

[0023] In the figure: 1. control panel; 11. cylinder; 111. liquid inlet pipe; 112. liquid outlet pipe; 113. partition; 114. delivery port; 12. discharge plate; 13. annular plate; 131. annular groove; 14. first pipeline; 2. drive motor; 21. transmission shaft; 22. fixed plate; 221. bracket; 222. vibration spring; 23. cross bar; 24. sliding cylinder; 25. rotating rod A; 251. rotating rod B; 26. filter membrane A; 27. adjustment motor; 28. vertical axis; 281. flexible membrane; 29. ​​air slip ring; 3. filter membrane B. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example: Figure 1-Figure 9 As shown, the present invention provides a technical solution of a multi-stage sewage purification device with anti-blocking filtering function, including a liquid inlet system (not shown in the figure), a liquid discharge system (not shown in the figure), a control system and a cylinder 11, the upper end of the cylinder 11 is connected to a liquid inlet pipe 111, the lower end of the cylinder 11 is connected to a liquid outlet pipe 112, the liquid inlet pipe 111 and the liquid outlet pipe 112 are respectively connected to the liquid inlet system and the liquid discharge system, a transmission shaft 21 is vertically installed in the cylinder 11, two groups of fixed disks 22 are mirror-mounted on the upper end of the transmission shaft 21, a vibration spring 222 is installed on the lower end of the transmission shaft 21, a cross bar 23 is installed on the two groups of fixed disks 22, three groups of sliding cylinders 24 are sequentially installed on the cross bar 23, and the three groups of sliding cylinders 24 are all installed with a rotating rod A25 and a rotating rod B251, and the two groups of fixed disks 22 are installed on the cross bar 23. A filter membrane A26 is installed between the fixed plates 22, and a filter membrane B3 is installed on the vibration spring 222; the liquid inlet system transports the sewage to the liquid inlet pipe 111, and the liquid discharge system extracts the filtered sewage outward through the liquid outlet pipe 112. The filter membrane A26 and the filter membrane B3 realize multi-stage filtration of the sewage. The cross bar 23 adjusts the filtration range of the filter membrane A26. The vibration spring 222 ensures the filtration effect of the filter membrane B3. The filtration effect of the filter membrane B3 is better than that of the filter membrane A26. The filter membrane A26 and the filter membrane B3 are both provided with a plurality of folds. The upper end of the transmission shaft 21 passes through the cylinder 11 and is connected to the output shaft of the drive motor 2. The drive motor 2 is installed on the cylinder 11. A control panel 1 is provided on the cylinder 11, and the control system is arranged in the control panel 1.

[0026] An annular groove 131 is provided on the inner wall of the cylinder 11 outside the two groups of fixed disks 22, and multiple groups of annular plates 13 are slidably installed in the annular groove 131. The annular plates 13 slide in the annular groove 131. Multiple groups of brackets 221 are provided on the side away from each other of the two groups of fixed disks 22. The multiple groups of annular plates 13 and the multiple groups of brackets 221 correspond one to one. There are multiple groups of cross bars 23, and the two ends of the multiple groups of cross bars 23 are rotatably installed on the brackets 221 and the annular plates 13 through bearings respectively. The cross bars 23 are supported by the annular plates 13 and the brackets 221. A first thread (not shown in the figure) and a second thread (not shown in the figure) are provided on the cross bar 23. The first thread is located on one side of the second thread. The sliding cylinder 24 is sleeved on the cross bar 23. The cross bar 23 near one end of the bracket 221 is connected to the output shaft of the adjusting motor 27, and the adjusting motor 27 is installed on the bracket 221.

[0027] The upper ends of the three groups of sliding cylinders 24 are all provided with columns, and the rotating rods A25 and the rotating rods B251 are respectively rotatably mounted on the columns through bearings. The rotating rod A25 is located on the upper side of the rotating rod B251. The middle group of sliding cylinders 24 is installed on the cross bar 23. The sliding cylinder 24 on the left is threadedly connected to the cross bar 23 through a first thread, and the sliding cylinder 24 on the right is threadedly connected to the cross bar 23 through a second thread. The first thread and the second thread have opposite rotation directions. The rotating rods A25 and the rotating rods B251 in the upper and lower groups of fixed plates 22 A vertical axis 28 is set between 51, and multiple groups of vertical axes 28 are set; a flexible membrane 281 is set in the gap between the rotating rod A25 and the rotating rod B251, and the flexible membrane 281 is made of flexible material. The flexible membrane 281 blocks the gap between the rotating rod A25 and the rotating rod B251, and the filter membrane A26 is set between two adjacent vertical axes 28. A filter chamber is formed between the rotating rod A25, the rotating rod B251, the flexible membrane 281 and the filter membrane A26, and the longitudinal section of the filter chamber is square.

[0028] A partition 113 is provided in the middle of the cylinder 11, and two sets of fixed disks 22 are located above the partition 113. An air slip ring 29 is installed between the lower fixed disk 22 and the partition 113. The air slip ring 29 is installed on the transmission shaft 21, and the transmission shaft 21 passes through the partition 113 and is installed at the bottom of the cylinder 11. The air slip ring 29 and the first pipe 14 cooperate to realize the conveyance of filtered sewage, and convey the sewage in the filter chamber to the conveying port 114; a plurality of conveying ports 114 are arranged on the partition 113, and a solenoid valve is installed in the conveying port 114, and the solenoid valve is electrically connected to the control system; the filter membrane A26 close to the filter chamber is connected with the first pipe 14, and the first pipe 14 is arranged in multiple groups. The filter chamber is connected to the inlet of the air slip ring 29 through the first pipe 14, and the outlet of the air slip ring 29 is connected to the conveying port 114 through another group of first pipes 14. Discharge plates 12 are respectively arranged on the cylinder 11 on both sides of the partition 113, and the discharge plates 12 and the cylinder 11 are connected in a snap-fit ​​manner. The staff cleans the impurities generated after filtering the filter membranes A26 and B3 by opening the discharge plates 12 to ensure the normal operation of the equipment.

[0029] In the vertical direction, a plurality of sliding grooves are arranged on the inner wall of the cylinder 11 below the partition 113; the vibration spring 222 is made of a spiral, and in the horizontal direction, a pole is arranged on the outer side of each turn of the vibration spring 222, and the pole is inserted into the sliding groove, and the plurality of sliding grooves respectively limit the positions of the plurality of poles, the filter membrane B3 is horizontally arranged on the upper end of the vibration spring 222, and the outer side of the filter membrane B3 is arranged on the inner wall of the cylinder 11, both ends of the vibration spring 222 are electrically connected to the control system, the surface of the vibration spring 222 is provided with an insulating outer skin, and a magnetic material (not shown in the figure) is arranged on the bottom of the cylinder 11 opposite to the vibration spring 222, and the magnetic material is in a circular ring shape. The control system continuously passes forward current and reverse current through the vibration spring 222, and forward magnetic field and reverse magnetic field are continuously generated at both ends of the vibration spring 222. The repulsive force and attractive force generated between the forward magnetic field and the reverse magnetic field and the magnetic material at the bottom of the cylinder 11 cause the vibration spring 222 to continuously vibrate up and down in the sliding groove. The vibration spring 222 drives the filter membrane B3 to vibrate continuously to ensure that the filter membrane B3 has a better filtering effect.

[0030] Working principle: Press the start button on the control panel 1 to start the equipment. The staff transports the sewage into the cylinder 11 through the liquid inlet system and the liquid inlet pipe 111. After the sewage enters the cylinder 11, it is located on the upper side of the partition 113. The liquid inlet system feeds back the flow data of the sewage to the control system. The control system controls the drive motor 2 to drive the transmission shaft 21 to rotate N circles forward and backward. The transmission shaft 21 drives the adjustment motor 27 and the cross bar 23 to rotate through the fixed plate 22. The cross bar 23 drives the sliding cylinder 24 to rotate (revolution). The sliding cylinder 24 drives the rotating rod A25, the rotating rod B251 and the vertical shaft 28 to rotate. The rotating rod A25, the rotating rod B251 and the vertical shaft 28 synchronously drive the filter membrane A26 to rotate. The rotating filter membrane A26 impacts the sewage, and impurities cannot be easily deposited on the filter membrane A26. The liquid passes through the filter membrane A26 and enters the filter chamber, while the impurities are blocked by the filter membrane A26 and the impurities are deposited on the upper side of the partition 113. While the drive motor 2 drives the transmission shaft 21 to rotate, the encoder in the drive motor 2 feeds back the rotation data to the control system. The control system controls the operation of the drainage system and the opening of the solenoid valve in the delivery port 114. The drainage system draws the liquid in the filter chamber through the first pipe 14 and the air slip ring 29 to the delivery port 114 through the liquid outlet pipe 112. The liquid is delivered to the lower side of the partition 113 through the delivery port 114.

[0031] After the sewage filtered by the filter membrane A26 is transported to the lower side of the partition 113, the sewage contacts the filter membrane B3. At this time, the control system passes the positive current and the reverse current into the vibration spring 222 according to the switch data of the solenoid valve in the delivery port 114. When the vibration spring 222 passes the positive current, the positive magnetic field generated at both ends of the vibration spring 222 and the magnetic material at the bottom of the cylinder 11 repel each other. Under the action of the repulsive force, the vibration spring 222 slides upward in the sliding groove through the pole. When the vibration spring 222 passes the reverse current, the two ends of the vibration spring 222 generate The reverse magnetic field and the magnetic material at the bottom of the cylinder 11 attract each other. Under the action of attraction, the vibration spring 222 slides downward in the sliding groove through the pole. The control system continuously supplies positive and reverse currents to the vibration spring 222, so that the vibration spring 222 drives the filter membrane B3 to vibrate, allowing the liquid on the filter membrane B3 to pass through faster, and impurities are bounced off by the filter membrane B3, thereby ensuring the filtering effect of the filter membrane B3 while improving the filtering efficiency. Afterwards, the sewage is filtered by the filter membrane B3 and discharged from the liquid outlet pipe 112 to the drainage system for further treatment.

[0032] After the sewage is filtered through the filter membrane A26 and the filter membrane B3, certain impurities will be left. The staff opens the discharge plate 12 above and below the partition 113 to clean the impurities around the filter membrane A26 and the filter membrane B3 to prevent the filter membrane A26 and the filter membrane B3 from being blocked. The filter membrane A26 filters out larger impurities. Since the filter membrane A26 continues to rotate forward and backward with the cross bar 23, it is not easy for impurities to be deposited on the filter membrane A26, which can avoid clogging of the filter membrane A26. The filter membrane B3 filters smaller impurities. Since the filter membrane B3 continues to vibrate under the action of the vibration spring 222, it is not easy for impurities to be deposited on the filter membrane B3, which can avoid clogging of the filter membrane B3.

[0033] The size of the filter chamber is adjustable. The adjusting motor 27 drives the cross bar 23 to rotate a certain angle. The cross bar 23 drives the sliding cylinder 24 on the left to move to the right through the first thread, and the cross bar 23 drives the sliding cylinder 24 on the right to move to the left through the second thread, so that the distance between the sliding cylinders 24 on both sides is reduced. Due to the reduction in the distance between the sliding cylinders 24 on both sides, the rotating rods A25 and the rotating rods B251 on the sliding cylinders 24 on both sides rotate on the cylinder respectively to adapt to the change in the distance between the sliding cylinders 24 on both sides. While the rotating rods A25 and B251 are rotating, the vertical shafts 28 on the rotating rods A25 and B251 follow the movement, so that the filter membrane A26 between the two adjacent vertical shafts 28 changes from the original expanded state to the pleated state, so that the filtration range of the filter membrane A26 is reduced to adapt to different usage occasions.

[0034] 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.

Claims

1. A multi-stage sewage purification device with anti-blocking filtering function, comprising a liquid inlet system, a liquid discharge system and a control system, characterized in that: The invention comprises a cylinder (11), wherein the upper end of the cylinder (11) is connected to a liquid inlet pipe (111), and the lower end of the cylinder (11) is connected to a liquid outlet pipe (112), wherein the liquid inlet pipe (111) and the liquid outlet pipe (112) are respectively connected to a liquid inlet system and a liquid discharge system, wherein a transmission shaft (21) is vertically installed in the cylinder (11), wherein two groups of fixed disks (22) are mirror-mounted on the upper end of the transmission shaft (21), and a vibration spring (222) is installed on the lower end of the transmission shaft (21), wherein a cross bar (23) is installed on the two groups of fixed disks (22), wherein three groups of sliding cylinders (24) are installed on the cross bar (23) in sequence, wherein a rotating rod A (25) and a rotating rod B (251) are installed on the three groups of sliding cylinders (24), wherein a filter membrane A (26) is installed between the two groups of fixed disks (22), and a filter membrane B (3) is installed on the vibration spring (222); The liquid inlet system transports sewage into the liquid inlet pipe (111), and the liquid discharge system extracts the filtered sewage outward through the liquid outlet pipe (112). The filter membrane A (26) and the filter membrane B (3) realize multi-stage filtration of the sewage. The cross bar (23) adjusts the filtration range of the filter membrane A (26), and the vibration spring (222) ensures the filtration effect of the filter membrane B (3).

2. The multi-stage sewage purification equipment with anti-blocking filtering function according to claim 1 is characterized by: An annular groove (131) is provided on the inner wall of the cylinder (11) outside the two groups of fixed disks (22). Multiple groups of annular plates (13) are slidably mounted in the annular groove (131). The annular plates (13) slide in the annular groove (131). Multiple groups of brackets (221) are provided on the sides of the two groups of fixed disks (22) away from each other. The multiple groups of annular plates (13) and the multiple groups of brackets (221) correspond to each other one by one. Multiple groups of cross bars (23) are provided. The two ends of the multiple groups of cross bars (23) are rotatably mounted on the brackets (221) and the annular plates (13) through bearings, respectively. The cross bars (23) are provided with a first thread and a second thread. The first thread is located on one side of the second thread. The sliding cylinder (24) is sleeved on the cross bar (23). The cross bar (23) at one end close to the bracket (221) is connected to the output shaft of the adjustment motor (27). The adjustment motor (27) is mounted on the bracket (221).

3. The multi-stage sewage purification equipment with anti-blocking filtering function according to claim 2 is characterized in that: The upper ends of the three groups of sliding cylinders (24) are all provided with a column, and the rotating rod A (25) and the rotating rod B (251) are respectively rotatably mounted on the column through bearings, and the rotating rod A (25) is located on the upper side of the rotating rod B (251). The middle group of sliding cylinders (24) is mounted on the cross bar (23), and the sliding cylinder (24) on the left side is threadedly connected to the cross bar (23) through a first thread, and the sliding cylinder (24) on the right side is threadedly connected to the cross bar (23) through a second thread, and the first thread and the second thread have opposite rotation directions.

4. The multi-stage sewage purification equipment with anti-blocking filtering function according to claim 3 is characterized by: A vertical shaft (28) is provided between the rotating rod A (25) and the rotating rod B (251) in the upper and lower sets of the fixed plates (22), and the vertical shaft (28) is provided in multiple sets; A flexible membrane (281) is disposed in the gap between the rotating rod A (25) and the rotating rod B (251); the flexible membrane (281) is made of a flexible material and blocks the gap between the rotating rod A (25) and the rotating rod B (251); the filter membrane A (26) is disposed between two adjacent vertical axes (28); a filter chamber is formed between the rotating rod A (25), the rotating rod B (251), the flexible membrane (281) and the filter membrane A (26); and the longitudinal section of the filter chamber is square.

5. The multi-stage sewage purification equipment with anti-blocking filtering function according to claim 4 is characterized in that: A partition (113) is provided in the middle of the cylinder (11), the two groups of fixed disks (22) are located above the partition (113), an air slip ring (29) is installed between the lower fixed disk (22) and the partition (113), the air slip ring (29) is installed on the transmission shaft (21), and the transmission shaft (21) passes through the partition (113) and is installed at the bottom of the cylinder (11).

6. The multi-stage sewage purification equipment with anti-blocking filtering function according to claim 5 is characterized by: The partition plate (113) is provided with a plurality of delivery ports (114), and a solenoid valve is installed in the delivery port (114), and the solenoid valve is electrically connected to the control system; A first pipe (14) is connected to the filter membrane A (26) near the filter chamber, and a plurality of first pipes (14) are provided. The filter chamber is connected to the inlet of the air slip ring (29) via the first pipe (14), and the outlet of the air slip ring (29) is connected to the delivery port (114) via another group of first pipes (14).

7. The multi-stage sewage purification equipment with anti-blocking filtering function according to claim 6 is characterized by: In the vertical direction, a plurality of groups of sliding grooves are arranged on the inner wall of the cylinder (11) below the partition (113); the vibration spring (222) is made of a spiral; in the horizontal direction, a pole is arranged on the outer side of each turn of the vibration spring (222); the pole is inserted into the sliding groove; the filter membrane B (3) is arranged horizontally on the upper end of the vibration spring (222); the outer side of the filter membrane B (3) is arranged on the inner wall of the cylinder (11); both ends of the vibration spring (222) are electrically connected to the control system; an insulating outer skin is arranged on the surface of the vibration spring (222); a magnetic material is arranged on the bottom of the cylinder (11) opposite to the vibration spring (222); the magnetic material is in a circular ring shape.

8. The multi-stage sewage purification equipment with anti-blocking filtering function according to claim 7 is characterized in that: The filtering effect of the filter membrane B (3) is better than that of the filter membrane A (26), and both the filter membrane A (26) and the filter membrane B (3) are provided with a plurality of folds.

9. The multi-stage sewage purification equipment with anti-blocking filtering function according to claim 8, characterized in that: Discharge plates (12) are respectively provided on the cylinder (11) located on both sides of the partition plate (113), and the discharge plates (12) and the cylinder (11) are connected in a snap-fit ​​manner.

10. The multi-stage sewage purification equipment with anti-blocking filtering function according to claim 9, characterized in that: The upper end of the transmission shaft (21) passes through the cylinder (11) and is connected to the output shaft of the drive motor (2); the drive motor (2) is mounted on the cylinder (11); a control panel (1) is provided on the cylinder (11); and the control system is provided in the control panel (1).

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