Wastewater lifting device

Abstract

The invention discloses a wastewater lifting device, and relates to the technical field of wastewater treatment.The wastewater lifting device comprises a wastewater lifting device box and a stainless steel check valve, the stainless steel check valve is fixedly communicated with the middle of the outer wall of the wastewater lifting device box, and the bottom of the outer wall of the wastewater lifting device box is fixedly communicated with a first pneumatic pinch valve; a side-mounted floating ball liquid level switch is mounted in the middle of the wastewater lifting device box body; impurities such as solid particles, fibers and hair in domestic wastewater are filtered through the filter screen, so that the impurities are prevented from being adhered to the interiors of the stainless steel check valve, the water feeding pipe and the wastewater lifting device box body, an effective circulation area of the stainless steel check valve and a water flow channel of the water feeding pipe is ensured, and the wastewater flows more uniformly and stably in a pipeline; wastewater can more smoothly enter the wastewater lifting device box body through the water feeding pipe and the stainless steel check valve, so that the wastewater can be timely and effectively lifted and discharged.

Description

Technical Field

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

[0002] The wastewater lifting device in the plateau environment is a device used to lift domestic wastewater from a low place to a high place for discharge, treatment or reuse. It mainly relies on the pressure difference between the inside and outside of the equipment to lift the wastewater.

[0003] However, during the use of existing wastewater lifting devices, solid particles, fibers, hair and other debris in domestic wastewater may enter the wastewater lifting device box through the water supply pipe and adhere to the pipe and the inside of the box, reducing the effective flow area of ​​the water flow channel and increasing the water flow resistance. This will reduce the lifting flow rate and flow rate of the wastewater, resulting in the wastewater lifting device being unable to reach the designed lifting capacity after long-term use, affecting the overall drainage efficiency. At the same time, these debris, driven by the water flow, will continuously rub against the pipe and the internal surface of the box, accelerating the wear of the equipment and shortening the service life of the equipment.

[0004] For this purpose, a wastewater lifting device is proposed. Summary of the invention

[0005] The object of the present invention is to provide a wastewater lifting device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wastewater lifting device, comprising a wastewater lifting device housing and a stainless steel check valve, the stainless steel check valve is fixedly connected to the middle of the outer wall of the wastewater lifting device housing, the outer wall bottom of the wastewater lifting device housing is fixedly connected with a pneumatic pinch valve 1, a side-mounted float liquid level switch is installed in the middle of the wastewater lifting device housing, a pneumatic pinch valve 2, a terminal controller and a pressure regulating valve are installed inside the wastewater lifting device housing, a pressure regulating pipe is fixedly connected to the pneumatic pinch valve 2, and one end of the pressure regulating pipe away from the pneumatic pinch valve 2 is fixedly connected to a wastewater drainage pipe, a wastewater lifting protection component is arranged on the stainless steel check valve, and the wastewater lifting protection component includes The upper water pipe is fixedly connected to the end of the stainless steel check valve away from the wastewater lifting device box, the end of the upper water pipe away from the stainless steel check valve is fixedly connected to a water tank, the side of the water tank away from the upper water pipe is fixedly connected to a stainless steel water pipe, the side of the water tank close to the upper water pipe is fixedly connected to a filter, the outer surface of the upper water pipe is fixedly connected to a plurality of recoil pipes, the side walls of the water tank are distributed up and down and are rotatably connected to an upper impeller and a lower impeller respectively, a chain is connected between the ends of the upper impeller and the lower impeller located in the water tank cavity through a sprocket drive, a scraper is fixedly connected to the outer surface of the chain, the outer wall of the water tank close to the upper impeller is fixedly connected to a servo motor, and the fixed end of the servo motor is fixedly connected to an upper support rod.

[0007] Furthermore, a bottom sealing plate is slidably connected to the bottom end of the water tank, and a side connecting plate is fixedly connected to the top of the bottom sealing plate on one side close to the stainless steel water pipe, a square column is slidably connected to the side connecting plate, a spring is sleeved on the square column, a sliding groove is provided at the bottom of the stainless steel water pipe, an impact plate is fixedly connected to the top of the side connecting plate, two telescopic sleeves are symmetrically fixedly connected to the side connecting plate, a lower support rod is fixedly connected to the side wall of the water tank, an end of the lower support rod away from the water tank is fixedly connected to a storage box, a rotating plate is rotatably connected to the bottom of the storage box, a latch is fixedly connected between the storage box and the rotating plate, a bottom connecting rod is fixedly connected to the side sealing plate on one side of the bottom sealing plate, an annular plate is fixedly connected to the end of the stainless steel water pipe away from the bottom sealing plate, and a rubber ring is fixedly connected to the side of the annular plate close to the stainless steel water pipe.

[0008] Furthermore, the bottom of the water tank is opened, and one end of the stainless steel water pipe away from the water tank is fixedly connected to the wastewater drainage pipe through a flange, and the output shaft of the servo motor is connected to the upper rotor.

[0009] Furthermore, one end of the upper support rod away from the servo motor is fixedly connected to the outer wall of the water tank.

[0010] Furthermore, one end of the square column close to the water tank is fixedly connected to the outer wall of the water tank, the two ends of the spring are respectively fixedly connected to the water tank and the side connecting plate, the top end of the impact plate extends into the interior of the stainless steel water pipe, and the impact plate is slidably connected to the slide groove.

[0011] Furthermore, the ends of the two telescopic sleeves connected to the side connecting plates are both telescopic ends, and the end of the lower support rod away from the water tank extends to the bottom of the water tank.

[0012] Furthermore, the top and bottom of the storage box are both opened, the bottom connecting rod extends along the direction of the stainless steel water pipe toward one side of the wastewater drainage pipe, and the annular plate and the rubber ring are both sleeved on the wastewater drainage pipe.

[0013] Further, the filter screen is located on the moving path of the scraper.

[0014] Furthermore, the bottom opening of the water tank corresponds to the top opening of the storage box and is of matching size.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The solid particles, fibers, hair and other impurities in the domestic wastewater are filtered through the filter, which prevents the impurities from adhering to the stainless steel check valve, the water pipe and the wastewater lifting device box, ensuring the effective flow area of ​​the stainless steel check valve and the water flow channel of the water pipe, making the flow of wastewater in the pipeline more uniform and stable, and the wastewater can enter the wastewater lifting device box more smoothly through the water pipe and the stainless steel check valve, thereby ensuring that the wastewater can be lifted and discharged in a timely and effective manner; Solid particles, fibers, hair and other debris in domestic wastewater are filtered through the filter, which prevents impurities from entering the wastewater lifting device box and prevents impurities from rubbing against the pipeline and the internal surface of the wastewater lifting device box, thereby extending the overall service life of the equipment and reducing the frequency of parts replacement due to wear and tear; The external water pump of the recoil pipe is started to circulate clean water into the multiple recoil pipes and spray out from the end of the recoil pipe close to the filter. The clean water will impact the filter and push the debris attached to the filter toward the stainless steel water pipe to achieve backwashing of the filter, avoiding the debris attached to the filter being too firm to be scraped off by the scraper, thus ensuring the efficiency of the scraper in scraping off the debris on the filter. At the same time, the backwash pipe changes the flow path of part of the domestic wastewater to achieve backwashing of the filter, and the scraper is used to scrape off the debris on the filter, which can timely remove the impurities adhering to the filter and prevent the impurities from clogging the pores of the filter, so that the filter always maintains a good permeability state, ensuring that its filtration efficiency does not drop significantly with the use time, and can stably intercept solid particles, fibers, hair and other debris in domestic wastewater for a long time, ensuring that the water quality entering the wastewater lifting device box is relatively stable; The flange connected to the wastewater drainage pipe is pressed against the rubber ring, and a thrust is applied to the flange in the direction of the stainless steel pipe, so that the wastewater drainage pipe is pushed in the direction of the stainless steel pipe, making the interface between the wastewater drainage pipe and the stainless steel pipe tighter, effectively reducing or even eliminating the gap, thereby preventing domestic wastewater from leaking from the interface during the discharge process, avoiding the gap caused by high-speed wastewater scouring and component aging, etc., which affects the wastewater lifting process, and ensuring the stability of the wastewater lifting process; The impurities scraped off the filter by the scraper fall into the storage box under the action of gravity, so that after the wastewater storage work is completed, the scraped impurities are automatically separated from the filter, avoiding the impact of impurity accumulation and ensuring that domestic wastewater can pass smoothly the next time it circulates. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall device of the present invention; Figure 2 This is a schematic diagram of the structural positions of the water supply pipe, water tank, stainless steel water pipe, etc. of the present invention; Figure 3 For the present invention Figure 2 The enlarged schematic diagram at A in the middle; Figure 4 It is a schematic cross-sectional view of the water supply pipe, water tank, stainless steel water pipe and other structures of the present invention; Figure 5 For the present invention Figure 4 The enlarged schematic diagram of point B in the middle; Figure 6It is a schematic cross-sectional view of the water tank, stainless steel water pipe, wastewater drainage pipe and other structures of the present invention; Figure 7 For the present invention Figure 6 The enlarged schematic diagram at C in the middle; Figure 8 It is a schematic cross-sectional view of the water tank, storage box and other structures of the present invention; Fig. 9 For the present invention Figure 8 Enlarged schematic diagram at point D in the middle.

[0017] In the figure: 11. Wastewater lifting device box; 12. Stainless steel check valve; 13. Pneumatic pinch valve 1; 14. Side-mounted float level switch; 15. Pneumatic pinch valve 2; 16. Terminal controller; 17. Pressure regulating valve; 18. Wastewater drainage pipe; 19. Pressure regulating pipe; 21. Water pipe; 22. Water tank; 23. Stainless steel water pipe; 24. Filter; 25. Recoil pipe; 26. Upper wheel; 27. Lower wheel; 28. Chain; 29. ​​Scraper; 210. Servo motor; 211. Upper support rod; 212. Bottom sealing plate; 213. Side connecting plate; 214. Square column; 215. Spring; 216. Slide; 217. Impact plate; 218. Telescopic sleeve; 219. Lower support rod; 220. Storage box; 221. Turntable; 222. Latch; 223. Bottom connecting rod; 224. Ring plate; 225. Rubber ring. DETAILED DESCRIPTION

[0018] 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.

[0019] Embodiments provided by the present invention: See also Figures 1 to 9 As shown, the wastewater lifting device includes a wastewater lifting device box 11 and a stainless steel check valve 12. The stainless steel check valve 12 is fixedly connected to the middle of the outer wall of the wastewater lifting device box 11. The bottom of the outer wall of the wastewater lifting device box 11 is fixedly connected with a pneumatic pinch valve 13. A side-mounted float liquid level switch 14 is installed in the middle of the wastewater lifting device box 11. A pneumatic pinch valve 15, a terminal controller 16 and a pressure regulating valve 17 are installed inside the wastewater lifting device box 11. A pressure regulating pipe 19 is fixedly connected to the pneumatic pinch valve 15, and a wastewater drainage pipe 18 is fixedly connected to one end of the pressure regulating pipe 19 away from the pneumatic pinch valve 15.

[0020] Among them: one end of the pneumatic pinch valve 13 away from the wastewater lifting device box 11 is externally connected to the wastewater lifting pipeline for lifting the wastewater.

[0021] Among them: the pneumatic pinch valve 15 is externally connected to the air pressure delivery pipeline, and the internal air pressure of the external air pressure delivery pipeline is controlled by the pressure regulating valve 17.

[0022] Among them, the terminal controller 16 is electrically connected to the pressure regulating valve 17 , the second pneumatic pinch valve 15 , and the first pneumatic pinch valve 13 .

[0023] Among them, one end of the wastewater drainage pipe 18 away from the wastewater lifting device box 11 is connected to the domestic wastewater discharge pipeline.

[0024] Among them: the side-mounted float liquid level switch 14 is used to detect the wastewater level inside the wastewater lifting device box 11, and there is an electrical connection relationship between the side-mounted float liquid level switch 14 and the terminal controller 16. Specifically, when the wastewater is discharged into the wastewater lifting device box 11, the pneumatic pinch valve 15 is connected to the pressure regulating pipe 19, so that the pressure regulating valve 17 is operated to increase the air pressure of the pneumatic pinch valve 15, and then the pressure regulating pipe 19 is transmitted to the wastewater drainage pipe 18. The purpose is to accelerate the flow of wastewater inside the wastewater drainage pipe 18 to the wastewater lifting device box 11. The pneumatic pinch valve 13 is disconnected from the external pipeline, that is, wastewater is stored at this time; When the wastewater level inside the wastewater lifting device box 11 reaches the position of the side-mounted float liquid level switch 14, the pneumatic pinch valve 2 15 disconnects the pressure regulating pipe 19, and the pneumatic pinch valve 1 13 and the external pipe are connected to each other, that is, wastewater lifting is performed at this time.

[0025] Specifically, when wastewater is transported to the wastewater lifting device housing 11 through the wastewater drain pipe 18 and the stainless steel check valve 12, the terminal controller 16 controls the pressure regulating valve 17 to pressurize the pneumatic pinch valve 15 and the pressure regulating pipe 19. The pressure regulating pipe 19 transmits high pressure into the wastewater drain pipe 18, so that the wastewater flowing in the wastewater drain pipe 18 is in a high-pressure state. At this time, a pressure difference occurs between the wastewater drain pipe 18 and the wastewater lifting device housing 11, and the wastewater in the wastewater drain pipe 18 is accelerated to flow from high pressure to low pressure, that is, the wastewater in the wastewater drain pipe 18 is accelerated to flow to the wastewater lifting device housing 11 through the stainless steel check valve 12. When the wastewater water level in the wastewater lifting device housing 11 reaches the side-mounted When the float level switch 14 is in the position, the wastewater drain pipe 18 no longer transports wastewater into the wastewater lifting device box 11. At this time, the pneumatic pinch valve 15 is disconnected from the pressure regulating pipe 19, and the inside of the wastewater drain pipe 18 is no longer pressurized. At this time, the terminal controller 16 controls the pneumatic pinch valve 13 to connect to the external wastewater lifting pipeline. The inside of the wastewater lifting device box 11 is in a high-pressure state, and the external pipeline is in a low-pressure state. The wastewater inside the wastewater lifting device box 11 is affected by the pressure difference, and the wastewater is accelerated to flow through the pneumatic pinch valve 13 to the external wastewater lifting pipeline of the pneumatic pinch valve 13. That is, at this time, the wastewater is lifted to a height where it can be discharged smoothly by gravity, or directly discharged to a designated drainage location such as a municipal sewage pipe network.

[0026] See also Figures 1 to 9As shown, a wastewater lifting and guaranteeing assembly is arranged on the stainless steel check valve 12, and the wastewater lifting and guaranteeing assembly comprises an upper water pipe 21, and the upper water pipe 21 is fixedly connected to the end of the stainless steel check valve 12 away from the wastewater lifting device box 11, and the end of the upper water pipe 21 away from the stainless steel check valve 12 is fixedly connected to a water tank 22, and the bottom of the water tank 22 is opened, and the side of the water tank 22 away from the upper water pipe 21 is fixedly connected to a stainless steel water pipe 23, and the end of the stainless steel water pipe 23 away from the water tank 22 is fixedly connected to the wastewater drainage pipe 18 through a flange, and the side of the water tank 22 close to the upper water pipe 21 is fixedly connected to a filter screen 24, and the outer surface of the upper water pipe 21 is fixedly connected to a plurality of recoil pipes 25, and the side walls of the water tank 22 are distributed up and down and are rotatably connected to upper wheels 26 and The lower rotating wheel 27, the upper rotating wheel 26 and the lower rotating wheel 27 are connected by a chain 28 through a sprocket transmission between one end thereof located in the cavity of the water tank 22, and a scraper 29 is fixedly connected to the outer surface of the chain 28, and a servo motor 210 is fixedly connected to the outer wall of the water tank 22 near the upper rotating wheel 26, and the output shaft of the servo motor 210 is fixedly connected to the upper rotating wheel 26, and the fixed end of the servo motor 210 is fixedly connected to an upper support rod 211, and one end of the upper support rod 211 away from the servo motor 210 is fixedly connected to the outer wall of the water tank 22, and a bottom sealing plate 212 is slidably connected to the bottom end of the water tank 22, and the bottom sealing plate 212 can only slide in the horizontal direction of the upper water pipe 21 at the bottom end of the water tank 22, and a side connection is fixedly connected to the top of the side of the bottom sealing plate 212 near the stainless steel water pipe 23 The side connecting plate 213 is slidably connected with a square column 214, and one end of the square column 214 close to the water tank 22 is fixedly connected to the outer wall of the water tank 22. A spring 215 is sleeved on the square column 214, and the two ends of the spring 215 are respectively fixedly connected to the water tank 22 and the side connecting plate 213. A chute 216 is provided at the bottom of the stainless steel water pipe 23, and an impact plate 217 is fixedly connected to the top of the side connecting plate 213. The top of the impact plate 217 extends into the interior of the stainless steel water pipe 23, and the impact plate 217 is slidably connected to the chute 216. Two telescopic sleeves 218 are symmetrically fixedly connected to the side connecting plate 213, and one end of the two telescopic sleeves 218 connected to the side connecting plate 213 is a telescopic end. Two lower support rods 218 are symmetrically fixedly connected to the side wall of the water tank 22 19. The ends of the two lower support rods 219 away from the water tank 22 are commonly fixedly connected to a storage box 220. The top and bottom of the storage box 220 are both opened. The bottom of the storage box 220 is rotatably connected to a rotating plate 221. A latch 222 is commonly inserted between the storage box 220 and the rotating plate 221. A bottom connecting rod 223 is fixedly connected to the side of the bottom sealing plate 212 close to the side connecting plate 213. The bottom connecting rod 223 extends toward the wastewater drainage pipe 18 along the direction of the stainless steel water pipe 23. An annular plate 224 is fixedly connected to the end of the stainless steel water pipe 23 away from the bottom sealing plate 212. A rubber ring 225 is fixedly connected to the side of the annular plate 224 close to the stainless steel water pipe 23. The annular plate 224 and the rubber ring 225 are both sleeved on the wastewater drainage pipe 18.

[0027] Among them: the length of the multiple recoil pipes 25 can be set according to actual conditions, the figure is only an example, and the end of the multiple recoil pipes 25 away from the water supply pipe 21 is provided with a one-way water inlet valve, which can only allow water to enter the water supply pipe 21 but not to discharge water. The ends of the multiple recoil pipes 25 connected to the water supply pipe 21 are all inclined toward the filter screen 24, and the ends of the multiple recoil pipes 25 away from the water tank 22 can be connected to an external water pump. Specifically: after the wastewater is stored in the wastewater lifting device box 11, that is, the wastewater drainage pipe 18 stops flowing wastewater into the wastewater lifting device box 11, the external water pump starts to flow clean water into the multiple recoil pipes 25.

[0028] Among them: Reference Figure 7 as well as Fig. 9 As shown, and Fig. 9 For position reference, the output shaft of the servo motor 210 rotates to drive the upper rotating wheel 26 to rotate clockwise, and the filter screen 24 is located on the moving path of the scraper 29. Specifically, when the scraper 29 follows the reciprocating motion of the scraper 29, when the scraper 29 moves to the side close to the filter screen 24, the scraper 29 contacts the inner wall of the water tank 22, and at this time, the scraper 29 moves from top to bottom.

[0029] Among them: Reference Figure 5 and Figure 7 As shown, one end of the impact plate 217 extending into the stainless steel water pipe 23 is located on the moving path of high-speed wastewater. That is, when the wastewater drainage pipe 18 stores water in the wastewater lifting device box 11, the high-speed wastewater can push the impact plate 217 to move toward the water tank 22.

[0030] The slide groove 216 and the two telescopic sleeves 218 and the impact plate 217 are all tightly fitted and slidably connected, and their function is to prevent wastewater from leaking or depressurizing when the wastewater flows through the stainless steel water pipe 23, thereby ensuring the airtightness of the stainless steel water pipe 23.

[0031] Among them: Reference Figure 5 and Figure 7 As shown, the bottom opening of the water tank 22 corresponds to the top opening of the storage box 220 and is matched in size.

[0032] Among them: Reference Figure 5 and Figure 7 As shown, the flange connected to the end of the wastewater drainage pipe 18 close to the stainless steel water pipe 23 is located on the moving path of the rubber ring 225.

[0033] Among them: in the initial stage of the wastewater lifting guarantee component, specifically: when the wastewater drainage pipe 18 does not perform water storage operation into the wastewater lifting device box 11, that is, no wastewater flows inside the wastewater drainage pipe 18, at this time, the output shaft of the servo motor 210 does not rotate, the spring 215 is not elastically compressed, the side connecting plate 213 is on the square column 214 away from the water tank 22, the telescopic end of the telescopic sleeve 218 close to the side of the water tank 22 extends, and the telescopic end of the telescopic sleeve 218 away from the side of the water tank 22 shrinks, the bottom sealing plate 212 slides at the bottom end of the water tank 22 until the bottom opening of the water tank 22 is completely exposed, a socket is opened on the storage box 220 and the rotating plate 221, and the pin 222 is inserted into the sockets of the storage box 220 and the rotating plate 221 at the same time, so that the rotating plate 221 seals the bottom opening of the storage box 220, and the rubber ring 225 does not press against the flange of the wastewater drainage pipe 18.

[0034] When the wastewater lifting guarantee component is in use, when the wastewater drainage pipe 18 is in the water storage operation toward the wastewater lifting device box 11, specifically: the wastewater drainage pipe 18 flows domestic wastewater mixed with solid particles, fibers, hair and other debris at a high speed toward the wastewater lifting device box 11. At this time, the wastewater flows into the wastewater lifting device box 11 through the stainless steel water pipe 23, the water tank 22, the water supply pipe 21, and the stainless steel check valve 12, and the water is stored in the wastewater lifting device box 11. In this process, the solid particles, fibers, hair and other debris in the domestic wastewater are filtered by the filter 24 and stay on the side of the filter 24 close to the water tank 22.

[0035] Solid particles, fibers, hair and other impurities in domestic wastewater are filtered through the filter 24, which prevents impurities from adhering to the stainless steel check valve 12, the water pipe 21 and the wastewater lifting device box 11, ensuring the effective flow area of ​​the water flow channel of the stainless steel check valve 12 and the water pipe 21, making the flow of wastewater in the pipeline more uniform and stable, and the wastewater can enter the wastewater lifting device box 11 more smoothly through the water pipe 21 and the stainless steel check valve 12, thereby ensuring that the wastewater can be lifted and discharged in a timely and effective manner.

[0036] At the same time, solid particles, fibers, hair and other debris in domestic wastewater are filtered through the filter 24, preventing impurities from entering the wastewater lifting device box 11, and preventing impurities from rubbing against the pipeline and the internal surface of the wastewater lifting device box 11, thereby extending the overall service life of the equipment and reducing the frequency of parts replacement due to wear and tear.

[0037] After the wastewater lifting device box 11 is filled with water, the servo motor 210 is started. At this time, the output shaft of the servo motor 210 rotates while driving the upper wheel 26 to rotate synchronously. While the upper wheel 26 rotates, the upper wheel 26 drives the lower wheel 27 to rotate synchronously through the chain 28. At this time, the chain 28 drives the scraper 29 to move. While the scraper 29 moves, the scraper 29 contacts the filter 24, scraping the debris blocked by the filter 24 close to the water tank 22 off the surface of the filter 24.

[0038] While the scraper 29 is scraping off the debris, the external water pump is connected to the water pipe to the recoil pipe 25, and clean water is circulated into the multiple recoil pipes 25 in turn, and is sprayed out from one end of the recoil pipe 25 close to the filter 24. The clean water will impact the filter 24, and push the debris attached to the filter 24 toward the stainless steel water pipe 23, thereby realizing backwashing of the filter 24, avoiding the debris attached to the filter 24 being too firm to be scraped off by the scraper 29, and ensuring the working efficiency of the scraper 29 in scraping off the debris of the filter 24.

[0039] At the same time, by backwashing the filter 24 through the backwash pipe 25 and scraping off the debris on the filter 24 with the scraper 29, the impurities adhering to the filter 24 can be removed in time to prevent the impurities from clogging the pores of the filter 24, so that the filter 24 always maintains a good permeability state, ensuring that its filtration efficiency does not decrease significantly with the use time, and can stably intercept solid particles, fibers, hair and other debris in domestic wastewater for a long time, ensuring that the water quality entering the wastewater lifting device box 11 is relatively stable.

[0040] When domestic wastewater flows at a high speed inside the stainless steel water pipe 23, the domestic wastewater applies a thrust toward the water tank 22 to the impact plate 217, so that the impact plate 217 moves toward the water tank 22 inside the slide 216, and while the impact plate 217 moves, the output end of the telescopic sleeve 218 close to the side of the water tank 22 contracts, and the output end of the telescopic sleeve 218 close to the side of the wastewater drainage pipe 18 extends. During the movement of the impact plate 217, the impact plate 217 drives the side connecting plate 213 to move synchronously toward the water tank 22, and then the side connecting plate 213 pushes the bottom sealing plate 212 to move, so that the bottom sealing plate 212 closes the bottom opening of the water tank 22, thereby ensuring the airtightness of the water tank 22 and the stainless steel water pipe 23 during the wastewater storage process.

[0041] During the movement of the side connecting plate 213, the side connecting plate 213 slides on the square column 214 toward the water tank 22, and at the same time, the elastic compression spring 215 is elastically compressed. When the bottom sealing plate 212 moves, the bottom sealing plate 212 drives the annular plate 224 and the rubber ring 225 to move synchronously toward the water tank 22 through the bottom connecting rod 223, so that the rubber ring 225 contacts the flange connected to the wastewater drainage pipe 18, and applies a thrust to the flange in the direction of the stainless steel water pipe 23, so that the wastewater drainage pipe 18 is pushed in the direction of the stainless steel water pipe 23, so that the interface between the wastewater drainage pipe 18 and the stainless steel water pipe 23 is tighter, and the gap is effectively reduced or even eliminated, thereby preventing domestic wastewater from leaking from the interface during the discharge process, avoiding the gap caused by the scouring of high-speed wastewater and aging of components to affect the wastewater lifting process, and ensuring the stability of the wastewater lifting process.

[0042] When the wastewater storage work is no longer being performed, that is, domestic wastewater no longer flows from the wastewater drain pipe 18 toward the wastewater lifting device box 11, and the work of scraping the filter screen 24 is completed, the servo motor 210 and the external water pump of the recoil pipe 25 stop operating, and the impact plate 217 is no longer pressurized by the wastewater. Under the elastic extension of the spring 215, the side connecting plate 213, the bottom sealing plate 212, and the bottom connecting rod 223 are pushed to move away from the water tank 22. At this time, the rubber ring 225 no longer presses against the flange of the wastewater drain pipe 18, and the rubber ring 225 exposes the flange of the wastewater drain pipe 18 for easy maintenance.

[0043] During the movement of the bottom sealing plate 212, the bottom sealing plate 212 no longer closes the bottom opening of the water tank 22, so that the impurities scraped off by the scraper 29 on the filter 24 fall into the storage box 220 under the action of gravity, so that after the wastewater storage work is completed, the scraped impurities are automatically separated from the filter 24, avoiding the impact of impurity accumulation and ensuring that domestic wastewater can pass smoothly during the next circulation.

[0044] When the storage box 220 is fully loaded, the operator can pull out the latch 222 and then flip the rotating plate 221 downward. At this time, the bottom opening of the storage box 220 is exposed, and the operator can empty the impurities accumulated in the storage box 220.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0046] 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. Wastewater lifting device, characterized in that: The invention comprises a wastewater lifting device housing (11) and a stainless steel check valve (12), wherein the stainless steel check valve (12) is fixedly connected to the middle of the outer wall of the wastewater lifting device housing (11), a pneumatic pinch valve (13) is fixedly connected to the bottom of the outer wall of the wastewater lifting device housing (11), a side-mounted float liquid level switch (14) is installed in the middle of the wastewater lifting device housing (11), a pneumatic pinch valve (15), a terminal controller (16) and a pressure regulating valve (17) are installed inside the wastewater lifting device housing (11), a pressure regulating pipe (19) is fixedly connected to the pneumatic pinch valve (15), and one end of the pressure regulating pipe (19) away from the pneumatic pinch valve (15) is fixedly connected to a wastewater drainage pipe (18), and a wastewater lifting guarantee component is arranged on the stainless steel check valve (12), and the wastewater lifting guarantee component comprises a water supply pipe (21), and the water supply pipe (21) is fixedly connected to the stainless steel check valve (12) away from the wastewater lifting device. At one end of the device housing (11), an end of the upper water pipe (21) away from the stainless steel check valve (12) is fixedly connected to a water tank (22), a side of the water tank (22) away from the upper water pipe (21) is fixedly connected to a stainless steel water pipe (23), a side of the water tank (22) close to the upper water pipe (21) is fixedly connected to a filter screen (24), a plurality of backwash pipes (25) are fixedly connected to the outer surface of the upper water pipe (21), an upper rotating wheel (26) and a lower rotating wheel (27) are respectively rotatably connected to the side wall of the water tank (22), a chain (28) is connected between the ends of the upper rotating wheel (26) and the lower rotating wheel (27) located in the cavity of the water tank (22) through a sprocket drive, a scraper (29) is fixedly connected to the outer surface of the chain (28), a servo motor (210) is fixedly connected to the outer wall of the water tank (22) close to the upper rotating wheel (26), and an upper support rod (211) is fixedly connected to the fixed end of the servo motor (210).

2. The wastewater lifting device according to claim 1, characterized in that: The bottom end of the water tank (22) is slidably connected to a bottom sealing plate (212), a side connecting plate (213) is fixedly connected to the top of the bottom sealing plate (212) near the stainless steel water pipe (23), a square column (214) is slidably connected to the side connecting plate (213), a spring (215) is sleeved on the square column (214), a sliding groove (216) is provided at the bottom of the stainless steel water pipe (23), an impact plate (217) is fixedly connected to the top of the side connecting plate (213), two telescopic sleeves (218) are symmetrically fixedly connected to the side connecting plate (213), and two lower support rods (219) are symmetrically fixedly connected to the side wall of the water tank (22). ), one end of the two lower support rods (219) away from the water tank (22) is fixedly connected to a sundry box (220), a rotating plate (221) is rotatably connected to the bottom of the sundry box (220), a latch (222) is inserted between the sundry box (220) and the rotating plate (221), a bottom connecting rod (223) is fixedly connected to the side of the bottom sealing plate (212) close to the side connecting plate (213), an annular plate (224) is fixedly connected to the end of the stainless steel water pipe (23) away from the bottom sealing plate (212), and a rubber ring (225) is fixedly connected to the side of the annular plate (224) close to the stainless steel water pipe (23).

3. The wastewater lifting device according to claim 1, characterized in that: The bottom of the water tank (22) is open, and one end of the stainless steel water pipe (23) away from the water tank (22) is fixedly connected to the wastewater drainage pipe (18) through a flange, and the output shaft of the servo motor (210) is connected to the upper rotating wheel (26).

4. The wastewater lifting device according to claim 1, characterized in that: One end of the upper support rod (211) away from the servo motor (210) is fixedly connected to the outer side wall of the water tank (22).

5. The wastewater lifting device according to claim 2, characterized in that: One end of the square column (214) close to the water tank (22) is fixedly connected to the outer wall of the water tank (22), two ends of the spring (215) are respectively fixedly connected to the water tank (22) and the side connecting plate (213), the top end of the impact plate (217) extends into the interior of the stainless steel water pipe (23), and the impact plate (217) is slidably connected to the slide groove (216).

6. The wastewater lifting device according to claim 2, characterized in that: The ends of the two telescopic sleeves (218) connected to the side connecting plate (213) are both telescopic ends, and the ends of the two lower support rods (219) away from the water tank (22) extend to the bottom of the water tank (22).

7. The wastewater lifting device according to claim 2, characterized in that: The top and bottom of the storage box (220) are both opened, the bottom connecting rod (223) extends along the direction of the stainless steel water pipe (23) toward one side of the wastewater drainage pipe (18), and the annular plate (224) and the rubber ring (225) are both sleeved on the wastewater drainage pipe (18).

8. The wastewater lifting device according to claim 2, characterized in that: The filter screen (24) is located on the moving path of the scraper (29).

9. The wastewater lifting device according to claim 2, characterized in that: The bottom opening of the water tank (22) corresponds to the top opening of the sundry storage box (220) in position and is of matching size.

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