A vacuum backwashing structure for cleaning a water collection tank in a pump station and a control method thereof

Abstract

The present invention discloses a vacuum backwashing structure for a water collection tank of a cleaning pump station and a control method thereof, which relate to the technical field of water treatment, and include a sewage tank and a flushing device, wherein a water outlet is fixedly installed on the right side of the sewage tank, a water inlet is fixedly installed on the left side of the sewage tank, a fixing rod is fixedly installed on the bottom of the inner wall of the sewage tank, a vacuum pump is fixedly installed on the left side of the sewage tank, a placement rack is fixedly installed on the top of the sewage tank, an electric push rod is fixedly penetrated through the top of the placement rack, a fixing ring slowly rotates counterclockwise to drive the rotating rod and the backwashing device to slowly rotate counterclockwise to flush the filter plate at multiple angles, and through slow counterclockwise rotation, it can be ensured that the water flow covers the surface of the filter plate, including the edges and corners, to ensure that all areas are fully flushed, thereby improving the cleaning effect and making the cleaning effect more thorough.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, in particular to a vacuum backwashing structure for cleaning a water collection tank of a pump station and a control method thereof. Background Art

[0002] The vacuum backwashing structure of the sump of a cleaning pump station usually consists of a vacuum generator, a backwashing pipe system, an automatic control system and a valve system.

[0003] The patent with patent announcement number CN213270311U relates to a vacuum backwashing structure for cleaning a water collection tank of a pump station. A negative pressure water diversion chamber is added to the water outlet side of the water collection tank, and the negative pressure water diversion chamber is connected to the bottom of the water collection tank by a through hole, and an integrated vacuum water diversion equipment is installed on the top of the negative pressure water diversion chamber. By utilizing the liquid level difference, water flows from the negative pressure water diversion chamber through the bottom through hole to flush the water collection tank of the pump station without dead ends. The powerful flushing flow flushes the bottom foot of the grille in the opposite direction, effectively alleviating the chain breakage and chain falling phenomenon caused by foreign matter blocking the grille during operation, thereby increasing the service life of the equipment, avoiding manual dredging and mechanical sewage suction, and reducing costs.

[0004] In the above-mentioned patent, by utilizing the liquid level difference, water is discharged from the negative pressure water diversion chamber through the bottom through hole to flush the pump station collection tank without dead angles. The powerful flushing flow reversely flushes the base of the grille installation, thereby increasing the service life of the equipment, avoiding manual dredging and mechanical sewage suction, and reducing costs. However, it is difficult to adjust the flushing angle of the cleaning medium when the cleaning medium flushes the pump station collection tank. It is difficult to adjust the flushing angle, which will result in the cleaning medium failing to fully cover or flush all parts of the filter screen, reducing the cleaning effect, so that some areas are still affected by dirt and cannot be completely cleaned. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a vacuum backwashing structure for a water collection tank in a cleaning pump station and a control method thereof, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a vacuum backwashing structure for a water collection pool of a cleaning pump station, comprising a sewage pool and a flushing device, wherein a water outlet is fixedly installed on the right side of the sewage pool, a water inlet is fixedly installed on the left side of the sewage pool, a fixed rod is fixedly installed on the bottom of the inner wall of the sewage pool, a vacuum pump is fixedly installed on the left side of the sewage pool, a placement rack is fixedly installed on the top of the sewage pool, an electric push rod is fixedly penetrated through the top of the placement rack, a cleaning rack is fixedly installed on the output end of the electric push rod, a rotating rod is rotatably penetrated through the right side of the cleaning rack, a backwashing device is fixedly installed on the left end of the rotating rod, and a sewage discharge hole is opened at the bottom of the inner wall of the sewage pool, wherein the flushing device comprises a bellows, a telescopic pipe, a water tank, a fixed ring, a rotating block, a placement plate, a rubber block and a limit rod. The rubber block is deformed by the extrusion of the rotating block, and the rubber block slowly deforms to make the rotating block and the fixed ring rotate slowly counterclockwise. The fixed ring rotates slowly counterclockwise to drive the rotating rod and the backwashing device to rotate slowly counterclockwise to flush the filter plate at multiple angles. The bellows is fixedly installed on the right side of the backwashing device, the water tank is fixedly installed on the top of the placement rack, the telescopic tube is fixedly installed on the bottom of the water tank, the telescopic tube is connected with the inside of the backwashing device through the bellows, the fixed ring is fixedly installed on the circumferential surface of the rotating rod, a fixed groove is provided on the left side of the fixed ring, the rotating block is rotatably installed on the inner wall of the fixed groove, the placement plate is fixedly installed on the right side of the cleaning rack, the rubber block is fixedly installed on the right side of the placement plate, the limit rod is fixedly installed on the bottom of the fixed ring, and a stabilizing groove is provided at the output end of the electric push rod.

[0007] According to the above technical solution, a fixed plate is fixed to the inner wall of the sewage pool, a connecting rod is fixedly installed on the right side of the fixed plate, a filter plate is slidably installed on the circumferential surface of the connecting rod, a scraper 18 is slidably installed on the right side of the filter plate 193, and the center of the right side of the scraper is located inside the stabilizing groove. The electric push rod moves downward to contact the scraper and drives the scraper to move downward to scrape the filter plate.

[0008] According to the above technical solution, a No. 1 spring is arranged between the rotating block and the fixed ring, and the No. 1 spring can drive the rotating block to reset. A No. 2 spring is arranged between the rotating rod and the cleaning rack, and the No. 2 spring can drive the rotating rod to reset. A rubber ring is arranged between the telescopic tube and the bellows, and a seal is arranged between the output end of the electric push rod and the sewage pool. A non-Newtonian fluid is arranged inside the rubber block, and a butterfly valve is arranged inside the water outlet and the water inlet. The non-Newtonian fluid will solidify instantly when it is squeezed quickly, so that the non-Newtonian fluid can only be pushed slowly to make it flow.

[0009] According to the above technical solution, it also includes a shaking device and a spraying device, the shaking device includes a reset spring, a linkage block and a hollow block, the filter plate is reset under the elastic force of the reset spring, and the filter plate reciprocates to enhance the flushing effect of the backwashing device on the filter plate, the reset spring is arranged between the connecting rod and the filter plate, the linkage block is fixedly installed on the right side of the filter plate, and the hollow block is fixedly installed on the circumferential surface of the connecting rod.

[0010] According to the above technical solution, a protrusion is fixedly installed on the circumferential surface of the connecting rod, the protrusion contacts the filter plate, the top of the linkage block is set as an inclined surface, and the filter plate moves and hits the protrusion to generate vibration.

[0011] According to the above technical scheme, the spray device includes a spray frame, a slope block, a spray rod, a sealing frame, a sealing rod, a sealing plate, a spray pipe and a stabilizing hole. The quantitative cleaning agent entering the sealing frame is sprayed onto the surface of the filter plate through the spray pipe to enhance the flushing effect of the backwashing equipment on the filter plate. The spray frame is fixedly installed on the top of the sewage pool, the slope block is fixedly installed on the left side of the filter plate, the spray rod slides through the bottom of the inner wall of the spray frame, the sealing frame is fixedly installed on the bottom of the inner wall of the spray frame, the sealing rod slides through the top of the inner wall of the sealing frame, the sealing plate is fixedly installed on the top of the sealing rod, the stabilizing hole is opened on the side of the spray rod, and the spray pipe is fixedly installed at the bottom of the spray frame.

[0012] According to the above technical solution, a No. 3 spring is arranged between the sealing frame and the sealing rod, and the No. 3 spring can drive the sealing rod to reset. The sealing frame contacts the bottom of the sealing plate, a cleaning agent is arranged inside the spray frame, and a sealing hole is opened at the top of the sealing frame.

[0013] According to the above technical solution, the spray pipe is elastic, the spray pipe is in contact with the stabilizing hole, and a No. 4 spring is arranged between the spray rod and the spray frame, and the spray rod can be driven to reset by the No. 4 spring.

[0014] A method for using a vacuum backwashing structure for cleaning a water collection tank in a pump station comprises the following steps:

[0015] Step 1: Before vacuum backwashing the water collection pool of the pump station, turn the butterfly valves inside the water outlet and the water inlet to seal the water outlet and the water inlet. After the water outlet and the water inlet are sealed, start the vacuum pump to evacuate the sewage pool so that the inside of the sewage pool remains in a vacuum state;

[0016] Step 2: Start the electric push rod to move downward to drive the cleaning rack to move downward, the cleaning rack moves downward to drive the rotating rod to move, the rotating rod moves to drive the backwashing device to move, and the backwashing device moves to flush the filter plate;

[0017] Step 3: When the backwashing device moves to the bottom of the sewage pool, it contacts and squeezes the fixed rod. The backwashing device rotates clockwise under the reaction force of squeezing the fixed rod to change the angle of flushing the filter plate;

[0018] Step 4: Wait for the electric push rod to reset and move upward to drive the backwashing device to move upward and reset. The backwashing device moves upward and resets. Under the action of its own gravity, it rotates counterclockwise to drive the fixed ring to rotate and contact the rubber block. At this time, the rotating block cannot rotate and squeezes the rubber block, and the rubber block is squeezed by the rotating block to produce deformation;

[0019] Step 5: The rubber block can only be deformed slowly due to the non-Newtonian fluid inside it. The slow deformation of the rubber block causes the fixing ring to rotate slowly counterclockwise. The slow counterclockwise rotation of the fixing ring drives the rotating rod and the backwashing device to rotate slowly counterclockwise to flush the filter plate at multiple angles.

[0020] Step 6: When the electric push rod is in operation, it moves downward to contact the scraper and drives the scraper to move downward to scrape the filter plate. After the backwashing equipment is finished, the seal of the drain hole is released and the cleaned sewage mixture is discharged from the sewage pool through the drain hole.

[0021] The present invention provides a vacuum backwashing structure for cleaning a water collection tank in a pump station and a control method thereof. It has the following beneficial effects:

[0022] (1) The invention, through the slow deformation of the rubber block, causes the rotating block and the fixed ring to slowly rotate counterclockwise. The slow counterclockwise rotation of the fixed ring drives the rotating rod and the backwashing device to slowly rotate counterclockwise to flush the filter plate at multiple angles. The slow counterclockwise rotation can ensure that the water flow covers the surface of the filter plate, including the edges and corners, ensuring that all areas are fully flushed, thereby improving the cleaning effect and making the cleaning effect more thorough. At the same time, the electric push rod moves downward to contact the scraper and drives the scraper to move downward to scrape the filter plate. The downward pressing action of the scraper can scrape dirt or grime from the surface of the filter plate, making the cleaning process of the backwashing device more thorough.

[0023] (2) In the present invention, the filter plate is reset by the elastic force of the reset spring, and the filter plate reciprocates accordingly to enhance the flushing effect of the backwashing device on the filter plate. The reciprocating motion of the filter plate can increase the coverage of the flushing effect, so that the cleaning medium can be more evenly distributed on the surface of the filter plate, which helps to improve the flushing efficiency of the backwashing device and accelerate the process of removing dirt. At the same time, the filter plate is reset by the elastic force of the reset spring and moves in the direction close to the telescopic tube. The filter plate moves and hits the protrusion to generate vibration. The vibration can increase the impact force between the filter plate and the flushing medium, which helps to effectively clean the dirt from the filter plate and further improve the flushing effect of the backwashing device.

[0024] (3) In the present invention, a quantitative cleaning agent enters the interior of the sealing frame and is sprayed onto the surface of the filter plate through a spray pipe. The cleaning agent can dissolve or wash away dirt or other impurities attached to the filter plate, thereby ensuring the cleaning efficiency of the backwashing equipment. By controlling the amount of cleaning agent used, excessive use or waste can be avoided. At the same time, the spray rod moves upward to contact the spray pipe and squeezes the spray pipe to deform. The deformation of the spray pipe allows the cleaning agent to be sprayed onto the surface of the filter plate more evenly. The deformed spray pipe may better adapt to the contour and curve of the filter plate surface, thereby improving the coverage rate of the cleaning agent and ensuring that each area is properly covered by the cleaning agent, thereby preventing dead corners or loopholes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the sewage pool and water inlet position structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the position structure of the bellows and the telescopic tube of the present invention;

[0028] Figure 4 This is a schematic diagram of the position structure of the cleaning rack and the backwashing equipment of the present invention;

[0029] Figure 5 This is a schematic diagram of the position structure of the telescopic pipe and the water tank of the present invention;

[0030] Figure 6 It is a schematic diagram of the position structure of the spray frame and the spray rod of the present invention;

[0031] Figure 7 For the present invention Figure 4 A schematic diagram of the structure enlargement of part A;

[0032] Figure 8 For the present invention Figure 3 A schematic diagram of the structure of part B in the middle is enlarged;

[0033] Fig. 9 For the present invention Figure 2 Schematic diagram of the enlarged structure of part C in the middle.

[0034] In the figure: 1, sewage pool; 2, water outlet; 3, water inlet; 31, vacuum pump; 4, fixing rod; 5, placement rack; 6, electric push rod; 7, cleaning rack; 8, backwashing equipment; 9, bellows; 10, telescopic tube; 11, water tank; 12, rotating rod; 13, fixing ring; 14, rotating block; 15, placement plate; 16, rubber block; 17, limiting rod; 18, scraper; 191, fixing plate; 192, connecting rod; 193, filter plate; 194, return spring; 195, linkage block; 196, protrusion; 197, hollow block; 201, spray frame; 202, inclined block; 203, spray rod; 204, sealing frame; 205, sealing rod; 206, sealing plate; 207, spray pipe; 208, stabilizing hole. DETAILED DESCRIPTION

[0035] 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.

[0036] See also Figure 1-Figure 9 , one embodiment of the present invention is: a vacuum backwashing structure for cleaning a water collection tank of a pump station, comprising a sewage tank 1, and also comprising a flushing device, wherein a water outlet 2 is fixedly installed on the right side of the sewage tank 1, a water inlet 3 is fixedly installed on the left side of the sewage tank 1, a fixed rod 4 is fixedly installed on the bottom of the inner wall of the sewage tank 1, a vacuum pump 31 is fixedly installed on the left side of the sewage tank 1, a placement rack 5 is fixedly installed on the top of the sewage tank 1, an electric push rod 6 is fixedly penetrated through the top of the placement rack 5, a cleaning rack 7 is fixedly installed on the output end of the electric push rod 6, a rotating rod 12 is rotatably penetrated on the right side of the cleaning rack 7, a backwashing device 8 is fixedly installed on the left end of the rotating rod 12, and a sewage discharge hole is opened at the bottom of the inner wall of the sewage tank 1, wherein the flushing device comprises a bellows 9, a telescopic tube 10, a water tank 11, a fixed ring 13, a rotating block 14, a placement plate 15, a rubber block 16 and a limit rod 1 7. The bellows 9 is fixedly mounted on the right side of the backwashing device 8, the water tank 11 is fixedly mounted on the top of the placement frame 5, the telescopic tube 10 is fixedly mounted on the bottom of the water tank 11, the telescopic tube 10 is connected with the inside of the backwashing device 8 through the bellows 9, the fixed ring 13 is fixedly mounted on the circumferential surface of the rotating rod 12, a fixed groove is provided on the left side of the fixed ring 13, the rotating block 14 is rotatably mounted on the inner wall of the fixed groove, the placement plate 15 is fixedly mounted on the right side of the cleaning frame 7, the rubber block 16 is fixedly mounted on the right side of the placement plate 15, the limit rod 17 is fixedly mounted on the bottom of the fixed ring 13, and a stabilizing groove is provided at the output end of the electric push rod 6. By slowly rotating counterclockwise, it can be ensured that the cleaning medium flow covers the surface of the filter plate 193, including the edges and corners, to ensure that all areas are fully rinsed, thereby improving the cleaning effect and making the cleaning effect more thorough.

[0037] A fixed plate 191 is fixed to the inner wall of the sewage pool 1, a connecting rod 192 is fixedly installed on the right side of the fixed plate 191, a filter plate 193 is slidably installed on the circumferential surface of the connecting rod 192, a scraper 18 is slidably installed on the right side of the filter plate 193, and the center of the right side of the scraper 18 is located inside the stabilizing groove. The downward pressing action of the scraper 18 can scrape dirt or grime from the surface of the filter plate 193, making the cleaning process of the backwashing equipment 8 more thorough.

[0038] A No. 1 spring is arranged between the rotating block 14 and the fixed ring 13, and the No. 1 spring can drive the rotating block 14 to reset. A No. 2 spring is arranged between the rotating rod 12 and the cleaning rack 7, and the No. 2 spring can drive the rotating rod 12 to reset. A rubber ring is arranged between the telescopic tube 10 and the bellows 9, and a seal is arranged between the output end of the electric push rod 6 and the sewage pool 1. A non-Newtonian fluid is arranged inside the rubber block 16, and a butterfly valve is arranged inside the water outlet 2 and the water inlet 3. The non-Newtonian fluid will solidify instantly when it is squeezed quickly, so that the non-Newtonian fluid can only be pushed slowly to make it flow.

[0039] A method for using a vacuum backwashing structure for cleaning a water collection tank in a pump station comprises the following steps:

[0040] Step 1: Before vacuum backwashing the water collection tank of the pump station, turn the butterfly valves inside the water outlet 2 and the water inlet 3 to seal the water outlet 2 and the water inlet 3. After the water outlet 2 and the water inlet 3 are sealed, start the vacuum pump 31 to evacuate the sewage tank 1 so that the inside of the sewage tank 1 remains in a vacuum state;

[0041] Step 2: Start the electric push rod 6 to move downward, drive the cleaning rack 7 to move downward, the cleaning rack 7 moves downward, drives the rotating rod 12 to move, the rotating rod 12 moves and drives the backwashing device 8 to move, and the backwashing device 8 moves to flush the filter plate 193;

[0042] Step 3: When the backwashing device 8 moves to the bottom of the sewage pool 1, it contacts and squeezes the fixed rod 4. The backwashing device 8 is subjected to the reaction force of squeezing the fixed rod 4 and rotates clockwise to change the angle of flushing the filter plate 193;

[0043] Step 4: Wait for the electric push rod 6 to reset and move upward to drive the backwashing device 8 to move upward and reset. The backwashing device 8 moves upward and resets. Under the action of its own gravity, it rotates counterclockwise to drive the fixed ring 13 to rotate and contact the rubber block 16. At this time, the rotating block 14 cannot rotate and squeezes the rubber block 16. The rubber block 16 is squeezed by the rotating block 14 and deformed;

[0044] Step 5: The rubber block 16 can only be deformed slowly due to the non-Newtonian fluid inside itself, and the rubber block 16 slowly deforms to make the fixing ring 13 slowly rotate counterclockwise, and the fixing ring 13 slowly rotates counterclockwise to drive the rotating rod 12 and the backwashing device 8 to slowly rotate counterclockwise to flush the filter plate 193 at multiple angles;

[0045] Step 6: When the electric push rod 6 is in operation, it moves downward to contact the scraper 18 and drives the scraper 18 to move downward to scrape the filter plate 193. After the backwashing device 8 finishes flushing, the seal of the drain hole is released, and the cleaned sewage mixture is discharged from the sewage pool 1 through the drain hole.

[0046] When this embodiment is working: before vacuum backwashing the water collection pool of the pump station, the butterfly valves inside the water outlet 2 and the water inlet 3 are rotated to seal the water outlet 2 and the water inlet 3. After the water outlet 2 and the water inlet 3 are sealed, the vacuum pump 31 is started to evacuate the sewage pool 1 so that the inside of the sewage pool 1 remains in a vacuum state. At the same time, the electric push rod 6 is started to move downward to drive the cleaning rack 7 to move downward. The cleaning rack 7 moves downward to drive the rotating rod 12 to move. The movement of the rotating rod 12 drives the backwashing device 8 to move. The backwashing device 8 moves to flush the filter plate 193. When the backwashing device 8 moves to the bottom of the sewage pool 1, it contacts and squeezes the fixed rod 4. The backwashing device 8 is subjected to the reaction force of squeezing the fixed rod 4 and rotates clockwise to change the angle of flushing the filter plate 193. When the electric push rod 6 is reset, it moves upward to drive the cleaning rack 7 to move upward. The cleaning rack 7 moves upward to drive the rotating rod 12 to move. The rotating rod 12 moves and drives the backwashing device 8 to move upward and reset. The backwashing device 8 moves upward and resets counterclockwise under the action of its own gravity. The needle rotates, the backwashing device 8 rotates counterclockwise to drive the rotating rod 12 to rotate counterclockwise, the rotating rod 12 rotates counterclockwise to drive the fixed ring 13 to rotate, the fixed ring 13 rotates to drive the rotating block 14 to rotate, the rotating block 14 rotates and contacts the rubber block 16, at this time, the rotating block 14 is limited by the limit rod 17 and cannot rotate, the rotating block 14 cannot rotate and squeezes the rubber block 16, the rubber block 16 is squeezed by the rotating block 14 and deformed, and the rubber block 16 can only slowly deform due to the non-Newtonian fluid inside itself The rubber block 16 slowly deforms to make the rotating block 14 and the fixed ring 13 slowly rotate counterclockwise. The fixed ring 13 slowly rotates counterclockwise to drive the rotating rod 12 and the backwashing device 8 to slowly rotate counterclockwise to flush the filter plate 193 at multiple angles. At the same time, the electric push rod 6 moves downward to contact the scraper 18 and drives the scraper 18 to move downward to scrape the filter plate 193. After the backwashing device 8 finishes flushing, the seal of the drain hole is released, and the cleaned sewage mixture is discharged from the sewage pool 1 through the drain hole.

[0047] See also Figure 1-Figure 9On the basis of the above-mentioned embodiment, another embodiment of the present invention further includes a shaking device and a spraying device, the shaking device includes a reset spring 194, a linkage block 195 and a hollow block 197, the reset spring 194 is arranged between the connecting rod 192 and the filter plate 193, the linkage block 195 is fixedly installed on the right side of the filter plate 193, the hollow block 197 is fixedly installed on the circumferential surface of the connecting rod 192, and the reciprocating motion of the filter plate 193 can increase the coverage of the flushing effect, so that the cleaning medium can be more evenly distributed on the surface of the filter plate 193.

[0048] A protrusion 196 is fixedly installed on the circumferential surface of the connecting rod 192. The protrusion 196 contacts the filter plate 193. The top of the linkage block 195 is set as an inclined surface. The filter plate 193 moves and hits the protrusion 196 to generate vibration. The vibration can increase the impact force between the filter plate 193 and the flushing medium, which helps to effectively clean the dirt from the filter plate 193.

[0049] The spray device includes a spray frame 201, a slope block 202, a spray rod 203, a sealing frame 204, a sealing rod 205, a sealing plate 206, a spray pipe 207 and a stabilizing hole 208. The spray frame 201 is fixedly installed on the top of the sewage pool 1, the slope block 202 is fixedly installed on the left side of the filter plate 193, the spray rod 203 slides through the bottom of the inner wall of the spray frame 201, the sealing frame 204 is fixedly installed on the bottom of the inner wall of the spray frame 201, the sealing rod 205 slides through the top of the inner wall of the sealing frame 204, the sealing plate 206 is fixedly installed on the top of the sealing rod 205, the stabilizing hole 208 is opened on the side of the spray rod 203, and the spray pipe 207 is fixedly installed at the bottom of the spray frame 201. The cleaning agent can dissolve or wash away the dirt or other impurities attached to the filter plate 193 to ensure the cleaning efficiency of the backwashing equipment 8, and controlling the amount of the cleaning agent can avoid excessive use or waste.

[0050] A No. 3 spring is arranged between the sealing frame 204 and the sealing rod 205 , and the No. 3 spring can drive the sealing rod 205 to reset. The sealing frame 204 contacts the bottom of the sealing plate 206 , a cleaning agent is arranged inside the spray frame 201 , and a sealing hole is opened at the top of the sealing frame 204 .

[0051] The spraying pipe 207 is elastic and contacts the stabilizing hole 208. A No. 4 spring is arranged between the spraying rod 203 and the spraying frame 201, and the No. 4 spring can drive the spraying rod 203 to reset.

[0052] When the present embodiment is working, the electric push rod 6 moves downward and contacts the scraper 18 and drives the scraper 18 to move downward. The scraper 18 moves downward and contacts the linkage block 195 and squeezes the linkage block 195 to move in the direction away from the telescopic tube 10. The linkage block 195 moves in the direction away from the telescopic tube 10 and drives the filter plate 193 to move. The filter plate 193 moves to squeeze the return spring 194. The return spring 194 is squeezed by the filter plate 193 to produce deformation and force storage. After the scraper 18 continues to move downward and is out of contact with the linkage block 195, the filter plate 193 is reset under the elastic force of the return spring 194. The filter plate 193 reciprocates in this way to improve the flushing effect of the backwashing device 8 on the filter plate 193. At the same time, the filter plate 193 is reset under the elastic force of the return spring 194 to move in the direction close to the telescopic tube 10. The filter plate 193 moves and hits the protrusion 196 to generate vibration.

[0053] The linkage block 195 moves in a direction away from the telescopic tube 10, driving the filter plate 193 to move. The movement of the filter plate 193 drives the inclined surface block 202 to move. The inclined surface block 202 moves to contact with the spray rod 203 and squeezes the spray rod 203 to move upward. The spray rod 203 moves upward to drive the sealing rod 205 to move. The sealing rod 205 moves to drive the sealing plate 206 to move upward. The sealing plate 206 moves upward to break away from the contact with the sealing hole and release the seal of the sealing frame 204. After the seal of the sealing frame 204 is released, the quantitative cleaning agent inside the spray frame 201 enters the sealing frame 204 through the sealing hole. The quantitative cleaning agent entering the sealing frame 204 is sprayed onto the surface of the filter plate 193 through the spray pipe 207 to enhance the flushing effect of the backwashing device 8 on the filter plate 193. At the same time, the spray rod 203 moves upward to contact with the spray pipe 207 and squeezes the spray pipe 207 to deform. The deformation of the spray pipe 207 makes the cleaning agent sprayed onto the surface of the filter plate 193 more evenly.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum backwashing structure for cleaning a water collection tank in a pump station, comprising a sewage tank (1), characterized in that: It also includes a flushing device, a shaking device and a spraying device; The sewage pool (1) is fixedly provided with a water outlet (2) on the right side, the sewage pool (1) is fixedly provided with a water inlet (3) on the left side, the sewage pool (1) is fixedly provided with a fixing rod (4) on the bottom of the inner wall of the sewage pool (1), the sewage pool (1) is fixedly provided with a vacuum pump (31) on the left side, the sewage pool (1) is fixedly provided with a placement rack (5) on the top, an electric push rod (6) is fixedly passed through the top of the placement rack (5), a cleaning rack (7) is fixedly provided at the output end of the electric push rod (6), a rotating rod (12) is rotatably passed through the right side of the cleaning rack (7), a backwashing device (8) is fixedly provided at the left end of the rotating rod (12), and a sewage discharge hole is provided at the bottom of the inner wall of the sewage pool (1); The flushing device comprises a bellows (9), a telescopic tube (10), a water tank (11), a fixed ring (13), a rotating block (14), a placement plate (15), a rubber block (16) and a limit rod (17); the bellows (9) is fixedly mounted on the right side of the backwashing device (8); the water tank (11) is fixedly mounted on the top of the placement rack (5); the telescopic tube (10) is fixedly mounted on the bottom of the water tank (11); the telescopic tube (10) is connected to the inside of the backwashing device (8) through the bellows (9); the fixed ring (13) is fixedly mounted on the circumferential surface of the rotating rod (12); a fixed groove is provided on the left side of the fixed ring (13); the rotating block (14) is rotatably mounted on the inner wall of the fixed groove; the placement plate (15) is fixedly mounted on the right side of the cleaning rack (7); the rubber block (16) is fixedly mounted on the right side of the placement plate (15); the limit rod (17) is fixedly mounted on the bottom of the fixed ring (13); and a stabilizing groove is provided at the output end of the electric push rod (6); A fixing plate (191) is fixed to the inner wall of the sewage pool (1), a connecting rod (192) is fixedly mounted on the right side of the fixing plate (191), a filter plate (193) is slidably mounted on the circumferential surface of the connecting rod (192), a scraper (18) is slidably mounted on the right side of the filter plate (193), and the center of the right side of the scraper (18) is located inside the stabilizing groove; A No. 1 spring is provided between the rotating block (14) and the fixed ring (13), a No. 2 spring is provided between the rotating rod (12) and the cleaning rack (7), a rubber ring is provided between the telescopic tube (10) and the bellows (9), a sealing member is provided between the output end of the electric push rod (6) and the sewage pool (1), a non-Newtonian fluid is provided inside the rubber block (16), and butterfly valves are provided inside the water outlet (2) and the water inlet (3).

2. A vacuum backwashing structure for cleaning a water collection tank in a pump station according to claim 1, characterized in that: The shaking device comprises a return spring (194), a linkage block (195) and a hollow block (197); the return spring (194) is arranged between the connecting rod (192) and the filter plate (193); the linkage block (195) is fixedly mounted on the right side of the filter plate (193); and the hollow block (197) is fixedly mounted on the circumferential surface of the connecting rod (192).

3. A vacuum backwashing structure for cleaning a water collection tank in a pump station according to claim 2, characterized in that: A protrusion (196) is fixedly mounted on the circumferential surface of the connecting rod (192), the protrusion (196) is in contact with the filter plate (193), and the top of the linkage block (195) is arranged as an inclined surface.

4. A vacuum backwashing structure for cleaning a water collection tank in a pump station according to claim 3, characterized in that: The spraying device comprises a spraying frame (201), an inclined surface block (202), a spraying rod (203), a sealing frame (204), a sealing rod (205), a sealing plate (206), a spraying pipe (207) and a stabilizing hole (208); the spraying frame (201) is fixedly mounted on the top of the sewage pool (1); the inclined surface block (202) is fixedly mounted on the left side of the filter plate (193); the spraying rod (203) slides through the bottom of the inner wall of the spraying frame (201); the sealing frame (204) is fixedly mounted on the bottom of the inner wall of the spraying frame (201); the sealing rod (205) slides through the top of the inner wall of the sealing frame (204); the sealing plate (206) is fixedly mounted on the top of the sealing rod (205); the stabilizing hole (208) is opened on the side of the spraying rod (203); and the spraying pipe (207) is fixedly mounted on the bottom of the spraying frame (201).

5. A vacuum backwashing structure for cleaning a water collection tank in a pump station according to claim 4, characterized in that: A No. 3 spring is arranged between the sealing frame (204) and the sealing rod (205); the sealing frame (204) is in contact with the bottom of the sealing plate (206); a cleaning agent is arranged inside the spraying frame (201); and a sealing hole is opened at the top of the sealing frame (204).

6. A vacuum backwashing structure for cleaning a water collection tank in a pump station according to claim 5, characterized in that: The spray pipe (207) is elastic, the spray pipe (207) is in contact with the stabilizing hole (208), and a No. 4 spring is provided between the spray rod (203) and the spray frame (201).

7. The method for using a vacuum backwashing structure for cleaning a water collection tank of a pump station according to claim 6, characterized in that: The following steps are involved: Step 1: Before vacuum backwashing the water collection pool of the pump station, turn the butterfly valves inside the water outlet (2) and the water inlet (3) to seal the water outlet (2) and the water inlet (3). After the water outlet (2) and the water inlet (3) are sealed, start the vacuum pump (31) to evacuate the sewage pool (1) so that the inside of the sewage pool (1) remains in a vacuum state; Step 2: Start the electric push rod (6) to move downward, driving the cleaning rack (7) to move downward, the cleaning rack (7) moves downward, driving the rotating rod (12) to move, the rotating rod (12) moves, driving the backwashing device (8) to move, and the backwashing device (8) moves to flush the filter plate (193); Step 3: When the backwashing device (8) moves to the bottom of the sewage pool (1), it contacts the fixed rod (4) and squeezes the fixed rod (4). The backwashing device (8) is subjected to the reaction force of squeezing the fixed rod (4) and rotates clockwise to change the angle of flushing the filter plate (193); Step 4: Wait for the electric push rod (6) to reset and move upward, driving the backwashing device (8) to move upward and reset. The backwashing device (8) moves upward and resets, and rotates counterclockwise under the action of its own gravity, driving the fixed ring (13) to rotate and contact the rubber block (16). At this time, the rotating block (14) cannot rotate and squeezes the rubber block (16). The rubber block (16) is squeezed by the rotating block (14) and deformed; Step 5: The rubber block (16) can only slowly deform due to the action of the non-Newtonian fluid inside itself. The rubber block (16) slowly deforms, causing the fixing ring (13) to slowly rotate counterclockwise. The fixing ring (13) slowly rotates counterclockwise, driving the rotating rod (12) and the backwashing device (8) to slowly rotate counterclockwise to flush the filter plate (193) at multiple angles. Step 6: When the electric push rod (6) is in operation, it moves downward to contact the scraper (18) and drives the scraper (18) to move downward to scrape the filter plate (193). After the backwashing device (8) is finished, the seal of the drain hole is released, and the cleaned sewage mixture is discharged from the sewage tank (1) through the drain hole.

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