Municipal sewage drainage device

Abstract

The present application relates to a municipal sewage drainage device, and relates to the technical field of municipal drainage. The device comprises a drainage box and a storage box. The drainage box has an open top, and a water inlet pipe connected to the side wall of the drainage box for introducing disinfectant water into the drainage box. The side wall of the drainage box is connected to the water outlet pipe. The storage box is horizontally arranged in the drainage box, and the side wall of the storage box is fixed to the inner wall of the drainage box. A storage space is left between one side of the storage box and the inner wall of the drainage box in the longitudinal direction. The storage box has an open top and is connected to the opening of the drainage box. A drainage assembly is provided in the storage box, and the drainage assembly is used to filter the sewage in the storage box and discharge it into the storage space. The storage space is provided with a filter assembly covering the storage space, and the filter assembly is used to receive sewage discharged from the drainage assembly, filter it, and discharge it into the drainage box. The present application has the advantage that impurities are unlikely to roll into the drainage box, thereby effectively preventing the disinfectant from affecting the sewage treatment effect.

Description

Technical Field

[0001] The present application relates to the field of municipal drainage, and in particular to a municipal sewage drainage device. Background Art

[0002] Municipal wastewater primarily comes from domestic sewage, which refers to domestic sewage and runoff within urban areas. It is typically collected through urban canals and treated at municipal sewage treatment plants before being discharged into water bodies. However, municipal wastewater contains numerous toxic and hazardous organic compounds. Many of these organic pollutants are carcinogenic, teratogenic, and mutagenic, and bioaccumulative. They tend to accumulate in water bodies and sediments, eventually entering the human body through the food chain and posing a health hazard.

[0003] In the related technology, a Chinese patent with authorization announcement number CN211896401U discloses a municipal sewage purification and drainage device, including a disinfection tank, a drainage pipe connected to the disinfection tank, a filter tank arranged in the middle of the disinfection tank, the filter tank is cylindrical, and a plurality of water outlet holes connected to the disinfection tank are opened on the peripheral wall at the bottom end of the filter tank. A filter assembly is detachably installed inside the filter tank, and the filter assembly includes a grille cover plate arranged at the opening of the filter tank, a connecting rod is arranged at the bottom of the grille cover plate, and the end of the connecting rod away from the grille cover plate is connected to a coarse filter plate and a fine filter plate in sequence.

[0004] When treating sewage, the sewage can be injected into the filter tank first. The sewage will first pass through the grille cover. Then the sewage that has been initially filtered by the grille cover will continue to pass through the coarse filter plate and the fine filter plate for secondary filtration, thereby filtering out small particles of impurities carried in the sewage. Finally, the filtered sewage reaches the bottom of the filter tank and flows evenly into the disinfection tank through the outlet hole for subsequent disinfection treatment.

[0005] When sewage passes through the grille cover, impurities in the sewage will be blocked on the upper surface of the grille cover. When a large amount of impurities accumulate on the grille cover, the impurities are likely to fall from the edge of the grille cover into the disinfection pool, affecting the disinfection effect of the disinfectant in the disinfection pool, resulting in poor sewage treatment effect, so it needs to be improved. Summary of the Invention

[0006] In order to improve the problem that impurities easily accumulate on the grille cover and roll into the disinfectant, affecting the sewage treatment effect, the present application provides a municipal sewage drainage device.

[0007] The municipal sewage drainage device provided in this application adopts the following technical solution:

[0008] A municipal sewage drainage device for discharging sewage, comprising:

[0009] A drainage box, wherein the top of the drainage box is an open structure, the side wall of the drainage box is connected to a water inlet pipe for introducing disinfectant water into the drainage box, and the side wall of the drainage box is connected to a water outlet pipe;

[0010] a storage box, horizontally arranged in the drainage box and having an open top, wherein a side wall of the storage box in the length direction is in contact with an inner wall of the drainage box in the length direction, a side wall of one end of the storage box in the width direction is in contact with an inner wall of one end of the drainage box in the width direction, and a storage space is formed between a side wall of the other end of the storage box in the width direction and a side wall of the other end of the drainage box in the width direction;

[0011] a drainage assembly, disposed in the storage box, for filtering the sewage in the storage box and discharging the filtered sewage out of the storage box;

[0012] The filter assembly is arranged in the accommodating space and divides the accommodating space into an upper sewage area and a lower clean water area. The filter assembly is used to receive and filter the filtered sewage discharged from the drainage assembly.

[0013] By adopting the above technical solution, when working, the sewage is first poured into the storage box, and the sewage enters the drainage assembly in the storage box. During this process, the drainage assembly filters the sewage, so that the larger particles of impurities in the sewage are blocked in the storage box. The sewage filtered by the drainage assembly is transported to the storage space by the drainage assembly and is located in the filter assembly. The filter assembly then filters the sewage a second time, so that the remaining impurities in the sewage are blocked in the filter assembly. Finally, the sewage after two filtrations can smoothly pass through the filter assembly and be discharged into the drainage box. At this time, disinfectant water is introduced into the drainage box through the water inlet pipe and mixed with the filtered sewage in the drainage box to disinfect the sewage. The disinfected water is then discharged through the outlet pipe to complete the sewage treatment.

[0014] The impurities in the filtered sewage are left in the storage box and the filter assembly, and the storage box has an inwardly concave box structure, so it is not easy for impurities to enter the drainage box from the storage box and mix with the disinfectant water. The filter assembly separates the accommodating space, so that the channel connecting the filter assembly and the disinfectant water in the drainage box is only through the filter assembly, but the impurities are blocked by the filter assembly, that is, no impurities that have been filtered in the sewage area will enter the drainage box in the clean water area, thereby avoiding the influence of impurities on the disinfection effect of the disinfectant water, and effectively ensuring the treatment effect of the disinfectant water on the sewage.

[0015] Optionally, the drainage component includes:

[0016] a drain pipe placed in the storage box, one end of the drain pipe being open and connected to the filter assembly, a plurality of filter holes being formed through the side wall of the drain pipe, a filter screen being provided in each of the filter holes, and a circumferential side wall of the filter screen being fixedly attached to the inner wall of the filter hole;

[0017] A connecting pipe is passed through the storage box, one end of the connecting pipe extends into the sewage area, and the other end is connected to the drain pipe through a sewage pump. The sewage pump is arranged on the storage box, and the sewage pump is used to pump the gray water in the drain pipe into the filter assembly.

[0018] By adopting the above technical solution, after sewage is poured into the storage tank, the water passes through the filter screen and enters the drain pipe. The filter screen blocks impurities in the sewage with a diameter larger than the pores in the filter screen and keeps them outside the drain pipe. In other words, the impurities are stored in the storage tank, achieving a rough first filtration of the impurities in the sewage and also completing the storage of the impurities. The sewage pump is then activated to pump the sewage with fewer impurities from the drain pipe into the connecting pipe, where it is discharged into the storage space and falls on the filter assembly for a second filtration of the sewage.

[0019] Optionally, the drain pipe is arranged horizontally and arranged in an S shape in the storage box.

[0020] By adopting the above technical solution, the curved arrangement of the drain pipe makes the overall length of the drain pipe located in the storage box longer, so that the amount of sewage entering the drain pipe per unit time is greater, thereby increasing the amount of water pumped into the filter assembly by the sewage pump, that is, the amount of water filtered between units is increased, and finally the amount of water in contact with disinfectant water will also increase, thereby improving the efficiency of sewage treatment.

[0021] Optionally, an insert is fixed on the side wall of the drain pipe, a slot is vertically provided on the side wall of the storage box, the top of the slot passes through the top of the side wall of the storage box, and the insert is inserted into the slot and can move in the slot.

[0022] By adopting the above technical solution, sewage passes through the filter and enters the drain pipe. At this point, the sewage in the drain pipe is still mixed with impurities with diameters smaller than the filter mesh apertures. These impurities easily adhere to the inner wall of the drain pipe, causing clogging after long-term use, which affects the flow of sewage through the drain pipe. At this point, the drain pipe is moved upward, causing the insert to move vertically upward in the slot until the drain pipe is removed from the storage box through the top opening. This allows the drain pipe to be removed and easily cleaned. After cleaning the drain pipe, the insert on the drain pipe is inserted into the slot through the top opening and moved downward until the drain pipe abuts against the inner bottom wall of the storage box, completing the installation of the drain pipe in the storage box.

[0023] Optionally, the filtering component includes:

[0024] A rotating rod is horizontally arranged, the rotating rod is arranged along the width direction of the drainage box, and the end of the rotating rod is rotatably connected to the inner wall of the drainage box;

[0025] A filter frame is arranged along the width direction of the drainage box, the filter frame includes a vertical filter plate and an arc filter plate, the vertical filter plate is vertically arranged, the end wall of the vertical filter plate abuts the inner wall of the drainage box, the arc filter plate is a quarter arc surface with the rotating rod as the central axis and the vertical filter plate as the radius, the end wall of the arc filter plate abuts the inner wall of the drainage box, and the bottom end of the arc filter plate is fixedly connected to the bottom end of the vertical filter plate;

[0026] A rotating block is arranged along the width direction of the drainage box, the end cross-section of the rotating block is a sector with a central angle of 90°, the central axis of the rotating block is coaxial with the rotating rod and is fixedly connected to the rotating rod, one side radius edge of the rotating block abuts against the vertical filter plate, the rotating block rotates, the arc surface of the rotating block abuts against the outer wall of the storage box, and the rotating block is used to push sewage into the filter frame.

[0027] By adopting this technical solution, in the initial state, one radial edge of the rotating block abuts the outer wall of the vertical filter plate, while the other radial edge is horizontal and aligned with the top wall of the filter frame. When the sewage pump discharges sewage from the drain pipe through one opening, the sewage enters the sewage area and falls onto the top of the rotating block and into the fan-shaped frame formed by the vertical and arc filter plates. The sewage within the filter frame is trapped by the filter frame, and the water passes through the filter frame into the drainage tank.

[0028] At the same time, the driving rotating rod drives the rotating block to flip upward, so that the rotating block is separated from the outer wall of the filter frame. At the same time, the side wall of the rotating block flush with the top wall of the filter frame is rotated to a vertical state, that is, the sewage is pushed into the filter frame, the sewage is promoted to flow, the rate at which the sewage passes through the filter frame and enters the drainage box is increased, and the work efficiency is improved.

[0029] During this process, the side wall of the rotating block away from the rotating rod is always in contact with the side wall of the storage box, that is, the sewage is not easy to leak into the drainage box from between the rotating block and the side wall of the storage box, so that the sewage is filtered for the first time through the drainage component and then filtered for the second time through the filter frame, ensuring the thoroughness of the filtration, making the disinfection effect of the disinfectant water not easily affected by impurities, thereby ensuring the sewage treatment effect.

[0030] Optionally, a water shield is provided above the filter frame, the water shield is fixedly connected to the inner wall of the drainage box, and the water shield is used to guide the sewage into the filter frame.

[0031] By adopting the above technical solution, when the sewage is discharged from the opening at one end of the drain pipe into the accommodating space, the water shield acts as a barrier, making it difficult for the sewage to splash onto the side of the water shield away from the filter frame, that is, the sewage is restricted between the filter frame and the water shield. At the same time, the inner wall of the water shield acts as a guide. When the sewage falls on the inner wall of the water shield, the sewage will drip into the filter frame along the trajectory of the inner wall of the water shield, thereby achieving drainage and increasing the stability of the rotating block flipping upward to push the sewage above the rotating block into the filter frame.

[0032] Optionally, the rotating block is connected to an extrusion plate via a connecting rod, the extrusion plate is perpendicular to the rotating rod, and one end of the extrusion plate is rotatably connected to the rotating rod, and the rotating block rotates to drive the extrusion plate to abut against the inner wall of the filter frame.

[0033] By adopting the above technical solution, when the rotating block flips upward, it drives the connecting rod and the extrusion plate to move simultaneously in the direction close to the filter frame. After the rotating block rotates 90°, the extrusion plate rotates to abut against the inner wall of the filter frame. While pushing the sewage to flow, it also presses the impurities on the inner wall of the filter frame, thereby squeezing out the sewage in the impurities, making it easier for the sewage in the filter frame to pass through the filter frame and flow into the drainage box, thereby increasing the rate at which the sewage passes through the filter frame and improving work efficiency.

[0034] Optionally, the extrusion plate can move on the connecting rod toward or away from the rotating block, and a torsion spring is provided on the rotating rod, one end of the torsion spring is fixed to the rotating rod, and the other end is fixed to the extrusion plate, for pushing the extrusion plate toward away from the rotating block.

[0035] By adopting the above technical solution, when the rotating block rotates, the extrusion plate contacts the impurities and squeezes the impurities against the inner wall of the filter frame. When there are more impurities accumulated in the filter frame, a gap exists between the extrusion plate and the inner wall of the filter frame, which shortens the distance the extrusion plate moves toward the filter frame. However, the movement distance of the rotating block remains unchanged. As a result, the torsion spring deforms at this time, causing the extrusion plate to move toward the rotating block on the connecting rod, thereby forming an angle between the extrusion plate and the inner wall of the filter frame, which does not interfere with the rotation of the rotating block. The torsion spring always applies a force that pushes the extrusion plate toward the filter frame, causing the extrusion plate to contact the impurities, thereby pressing the impurities against the inner wall of the filter frame, making it easier to squeeze out the sewage in the impurities.

[0036] Optionally, a mounting block is fixed on the side wall of the filter frame, and a mounting groove is opened in the horizontal direction on the inner wall of the drainage box. The mounting block is inserted into the mounting groove and can move in the mounting groove. A mounting hole for the filter frame to pass through is opened on the side wall of the drainage box, one end of the mounting groove is connected to the mounting hole, and a cover plate for sealing the mounting hole is hinged on the inner wall of the mounting hole.

[0037] By adopting the above technical solution, when too much impurities accumulate in the filter frame, the impurities are likely to clog the pores on the filter frame. At this time, the cover plate is rotated away from the drainage box to open the mounting hole. Then, one end of the filter frame is pulled out of the drainage box through the mounting hole to achieve the removal of the filter frame, which is convenient for cleaning the filter frame. After the filter frame is cleaned, the filter frame is inserted into the mounting hole, with the mounting block aligned with the mounting groove and inserted into the mounting groove from one end. Then, the mounting block is moved in the mounting groove along the length of the mounting groove until the filter frame is completely placed in the drainage box, completing the installation of the filter frame in the drainage box. Then, the cover plate is moved toward the drainage box to re-block the mounting hole, which is convenient for sewage treatment.

[0038] Optionally, the storage box includes:

[0039] A storage frame is through-through from top to bottom, wherein the outer wall of the storage frame is fixedly attached to the inner wall of the drainage box, the accommodating space is located between one side of the storage frame in the length direction and the inner wall of the drainage box, and the slot and the sewage pump are both provided on the inner wall of the storage frame;

[0040] A storage plate is located at the bottom of the storage frame, and the storage plate is rotatably connected to the inner wall of the drainage box via a rotating shaft;

[0041] A propulsion spring is provided between the bottom wall of the storage plate and the inner wall of the drainage box. One end of the propulsion spring is fixed to the inner wall of the drainage box, and the other side is fixed to the bottom wall of the storage plate, and is used to flip the end of the storage plate close to the filter assembly downward with the rotating shaft as the axis.

[0042] By adopting the above technical solution, when sewage treatment is completed, the drain pipe is first lifted upward, so that the plug block is pulled out of the slot, and the drain pipe is removed. During the upward movement of the drain pipe, the storage plate loses its downward squeezing force, and under the elastic force of the propulsion spring, the storage plate rotates about the rotating shaft, so that the end of the storage plate close to the rotating block flips downward and separates from the storage frame, while the other end of the storage plate moves upward, so that the storage plate is now in an inclined state. Impurities and sewage accumulated in the storage box that cannot enter the drain pipe will move along the storage plate and flow through the gap between the storage plate and the storage frame into the storage space, that is, on the rotating block and the filter frame, to clean the storage box. Then, the rotating block is driven to rotate, pushing the sewage to flow and squeezing out the impurities, facilitating sewage treatment.

[0043] In summary, this application has at least one of the following beneficial effects:

[0044] 1. When working, first pour the sewage into the storage box, and then the sewage enters the drainage component in the storage box. During this process, the drainage component filters the sewage so that the larger particles of impurities in the sewage are blocked in the storage box. The sewage filtered by the drainage component is transported to the storage space through the drainage component and is located in the filter component. The filter component then filters the sewage for a second time so that the remaining impurities in the sewage are blocked in the filter component. Finally, the sewage after two filtrations can be smoothly discharged into the drainage box through the filter component. At this time, disinfectant water is introduced into the drainage box through the water inlet pipe and mixed with the filtered sewage in the drainage box to disinfect the sewage. The disinfected water is then discharged through the outlet pipe to complete the sewage treatment.

[0045] 2. After the sewage is poured into the storage tank, it passes through the filter and enters the drain pipe. The filter blocks impurities in the sewage that are larger than the pores on the filter and keeps them outside the drain pipe. This means that the impurities are stored in the storage tank, achieving a rough first filtration of the impurities in the sewage and also completing the storage of the impurities. The sewage pump is then started to pump the sewage with fewer impurities from the drain pipe into the storage space, where it falls on the filter assembly for a second filtration of the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic structural diagram of a municipal sewage drainage device according to an embodiment of the present application;

[0047] Figure 2 This is a cross-sectional view of the structure of the municipal sewage drainage device according to an embodiment of the present application;

[0048] Figure 3 It is a structural diagram of the position relationship between the motor and the drainage box;

[0049] Figure 4 for Figure 3Enlarged view of point A in the middle;

[0050] Figure 5 Schematic diagram of the structure of the filter component.

[0051] In the figure: 10. Drain box; 11. Accommodating space; 12. Mounting slot; 13. Mounting hole; 20. Storage box; 21. Storage frame; 211. Slot; 22. Storage plate; 221. Rotating shaft; 23. Propulsion spring; 30. Drain assembly; 31. Drain pipe; 311. Filter hole; 312. Filter screen; 313. Insert block; 32. Sewage pump; 33. Connecting pipe; 40. Filter assembly; 41. Rotating block; 411. Connecting rod; 42. Rotating rod; 421. Motor; 43. Filter frame; 431. Mounting block; 432. Vertical filter plate; 433. Arc filter plate; 50. Extrusion plate; 51. Torsion spring; 60. Water shield; 70. Cover plate; 80. Water inlet pipe; 90. Water outlet pipe. DETAILED DESCRIPTION

[0052] The following is combined with Figure 1-5 This application is described in further detail.

[0053] The embodiment of the present application discloses a municipal sewage drainage device. Figure 1 and Figure 2 The municipal sewage drainage device includes a drainage box 10 with an open top. A water inlet pipe 80 is connected to the side wall of the drainage box 10. The water inlet pipe 80 is located at the bottom of the drainage box 10 and is used to pass disinfectant water into the drainage box 10. A water outlet pipe 90 is also connected to the side wall of the drainage box 10. The water outlet pipe 90 and the water inlet pipe 80 are set at both ends of the drainage box 10 to discharge water from the drainage box 10.

[0054] Reference Figure 1 and Figure 2 A storage box 20 is provided in the drainage box 10. The storage box 20 is arranged horizontally. The height of the storage box 20 is less than that of the drainage box 10, and the storage box 20 is located as a whole at the upper end of the drainage box 10. The storage box 20 includes a storage frame 21 and a storage plate 22. The storage frame 21 forms a closed-loop square frame, and the storage frame 21 is connected from top to bottom. The top of the drainage box 10 is connected to the storage frame 21. The outer wall of the storage frame 21 is fitted and fixed to the inner wall of the drainage box 10, and the side wall of the storage frame 21 in the width direction is fitted and fixed to the inner wall of the drainage box 10 in the width direction. The side wall of one end of the storage frame 21 in the length direction is fitted and fixed to the inner wall of one end of the drainage box 10 in the length direction, and a accommodating space 11 is formed between the side wall of the other end of the storage frame 21 in the length direction and the inner wall of the other end of the drainage box 10 in the length direction. The storage plate 22 is located at the bottom of the storage frame 21, and the storage plate 22 can completely close the bottom opening of the storage frame 21. The length direction of the drainage box 10 refers to, Figure 2In the direction from the water inlet pipe 80 to the water outlet pipe 90.

[0055] Reference Figure 1 and Figure 2 A rotating shaft 221 is horizontally mounted in the drainage box 10. The ends of the rotating shaft 221 are fixed to the inner wall of the drainage box 10. The rotating shaft 221 extends along the width of the drainage box 10 and is inserted into the storage plate 22. The storage plate 22 can rotate on the rotating shaft 221. An extension plate is bent upward along one side of the storage plate 22's length, and a corresponding receiving groove is defined on the side of the storage frame 21 adjacent to the receiving space 11. When the storage plate 22 is horizontally positioned to block the bottom opening of the storage frame 21, the extension plate fits into the receiving groove, allowing the storage frame 21 and storage plate 22 to form a concave box with only a top opening.

[0056] Reference Figure 1 and Figure 2 A propulsion spring 23 is provided under the storage plate 22. One end of the propulsion spring 23 is fixed to the inner wall of the drainage box 10, and the other end is fixed to the bottom wall of the storage plate 22. The propulsion spring 23 is located on the side of the rotating shaft 221 away from the accommodating space 11, and the propulsion spring 23 always pushes the end of the storage plate 22 away from the accommodating space 11 upward.

[0057] Reference Figure 1 and Figure 2 The storage box 20 is provided with a drainage assembly 30 that presses the storage plate 22 to a horizontal state, so that the sewage can be stored in the storage box 20 after being poured into the storage box 20. The drainage assembly 30 can also filter the sewage entering the storage box 20 once and discharge the filtered sewage into the storage space 11. The storage space 11 is provided with a filter assembly 40. The filter assembly 40 divides the entire storage space 11 into an upper sewage area and a lower clean water area to receive the sewage discharged from the drainage assembly 30 and perform a secondary filtration on this part of the sewage. Finally, the double-filtered sewage is discharged into the drainage box 10. At this time, disinfectant water is introduced into the drainage box 10 through the water inlet pipe 80 and mixed with the filtered sewage in the drainage box 10 to disinfect the sewage. The disinfected water is then discharged through the outlet pipe 90 to complete the sewage treatment.

[0058] Reference Figure 1 and Figure 2The drainage assembly 30 includes a drain pipe 31 and a sewage pump 32. The drain pipe 31 is arranged horizontally and in an S-shape within the storage box 20, allowing the drain pipe 31 to extend longer within the storage box 20. A T-shaped insert 313 is fixed to the side wall of the drain pipe 31. A slot 211 is vertically defined on the side wall of the storage frame 21. The slot 211 is a T-shaped slot that fits the insert 313, and the top of the slot 211 extends through the top wall of the storage frame 21. The insert 313 is aligned with the slot 211 and inserted into the slot 211 through the top opening. The insert 313 moves downward within the slot 211 until the drain pipe 31 abuts the bottom wall of the storage plate 22, completing the installation of the drain pipe 31 in the storage box 20. At the same time, the drain pipe 31 exerts an extruding effect on the storage plate 22, and the inner wall of the slot 211 abuts against the side wall of the insert block 313, so that the insert block 313 does not deflect in the slot 211, that is, the drain pipe 31 is always in a horizontal state, thereby squeezing the storage plate 22 in a horizontal state. At this time, the propulsion spring 23 is in a contracted state, so that the storage box 20 is a complete concave box.

[0059] Reference Figure 2 and Figure 3 When a lot of impurities and sewage remain in the storage box 20, in order to clean the storage box 20, the drain pipe 31 is first lifted upward, so that the plug block 313 is pulled out of the slot 211, and the drain pipe 31 is disassembled. During the upward movement of the drain pipe 31, the storage plate 22 loses the downward squeezing force, and under the elastic force of the propulsion spring 23, the storage plate 22 rotates around the rotating shaft 221, so that the end of the storage plate 22 close to the rotating block 41 is turned downward and separated from the storage frame 21, while the other end of the storage plate 22 moves upward, so that the storage plate 22 is in an inclined state at this time, and the impurities and sewage accumulated in the storage box 20 that cannot enter the drain pipe 31 will move along the storage plate 22 and flow from the gap between the storage plate 22 and the storage frame 21 to the accommodating space 11, that is, located in the filter assembly 40, to achieve sewage filtering.

[0060] Reference Figure 3 and Figure 4 The side wall of the drain pipe 31 is provided with a plurality of filter holes 311, each of which is provided with a filter screen 312. The circumferential side wall of the filter screen 312 is fixedly attached to the inner wall of the filter hole 311. A sewage pump 32 is fixed to the inner wall of the storage frame 21 near the storage space 11. The water inlet end of the sewage pump 32 is connected to the opening of the drain pipe 31 near the storage space 11. The water outlet pipe of the sewage pump 32 is connected to a connecting pipe 33, which passes through the storage frame near the storage space 11 and is connected to the sewage area. The sewage pump 32 is used to pump water out of the drain pipe 31.

[0061] During operation, sewage is first poured into the storage tank 20. The water passes through the filter 312 and enters the drain pipe 31. The filter 312 blocks impurities in the sewage with diameters larger than the apertures of the filter 312 and traps them outside the drain pipe 31. This means that the impurities are stored in the storage tank 20, achieving a rough first filtration of the impurities in the sewage and also completing the storage of the impurities. The sewage pump 32 is then activated to pump the sewage with fewer impurities from the drain pipe 31 into the storage space 11 through the connecting pipe 33. The sewage then falls onto the filter assembly 40 for a second filtration of the sewage.

[0062] Reference Figure 1 The impurities in the filtered sewage are left in the storage box 20 and the filter assembly 40, and the storage box 20 is a concave box structure, so it is not easy for impurities to enter the drainage box 10 from the storage box 20 and mix with the disinfectant water. The filter assembly 40 covers the entire accommodating space 11, so that the only communication channel between the filter assembly 40 and the disinfectant water in the drainage box 10 is through the filter assembly 40, but the impurities are blocked by the filter assembly 40, that is, no filtered impurities will enter the drainage box 10, thereby avoiding the influence of impurities on the disinfection effect of the disinfectant water, and effectively ensuring the treatment effect of the disinfectant water on the sewage.

[0063] Reference Figure 2 and Figure 3 The filter assembly 40 includes a rotating block 41, a rotating rod 42, and a filter frame 43. The rotating block 41 is arranged in the receiving space 11 along the width of the drainage box 10. The end of the rotating block 41 abuts the inner wall of the drainage box 10. The end cross-section of the rotating block 41 is a sector with a central angle of 90°. The arc surface of the rotating block 41 always abuts the side of the storage frame 21 closest to the receiving space 11. The rotating rod 42 is arranged in the receiving space 11 along the width of the drainage box 10. The end of the rotating rod 42 is rotatably connected to the inner wall of the drainage box 10. A motor 421 is fixed to the outer wall of the drainage box 10 by bolts. The output end of the motor 421 passes through the drainage box 10 and is coaxially fixed to one end of the rotating rod 42, which is used to drive the rotating rod 42 to rotate. The rotating rod 42 is coaxial with the center of the rotating block 41 and is fixedly connected to the rotating block 41. That is, the rotating block 41 can rotate about the central axis of the rotating rod 42.

[0064] Reference Figure 2 and Figure 5The filter frame 43 is placed in the accommodation space 11 along the width of the drainage box 10. The filter frame 43 includes a vertical filter plate 432 and a circular filter plate 433. Both the vertical filter plate 432 and the circular filter plate 433 are long plates with a plurality of apertures. Specifically, the vertical filter plate 432 is vertically arranged and arranged along the width of the drainage box 10, while the circular filter plate 433 is a quarter-circular arc surface arranged with the rotating rod 42 as the central axis and the vertical filter plate 432 as the radius. The circular filter plate 433 is also arranged along the width of the drainage box 10. The bottom end of the vertical filter plate 432 is fixedly connected to the bottom end of the circular filter plate 433, so that the end cross-section of the filter frame 43 also has a fan shape.

[0065] The end walls of the vertical filter plate 432 and the arc filter plate 433 are both in contact with the inner wall of the drainage box 10, so that the two filter plates cooperate with the inner wall of the drainage box 10 to form a fan-shaped frame structure with an open top, and the center of the filter frame 43 is coaxial with the rotating rod 42. In the initial state, the radial edge on one side of the rotating block 41 is in contact with the vertical filter plate 432, and the radial edge on the other side of the rotating block 41 is flush with the top wall of the filter frame 43, and the open end of the connecting pipe 33 away from the drain pipe 31 is located above the rotating block 41.

[0066] Reference Figure 2 and Figure 5 It can be understood that the side of the arc-shaped filter plate away from the rotating block 41 abuts against the inner wall of the drainage box 10, so that the rotating block 41 and the filter frame 43 cooperate with each other, occupying the distance between the outer wall of the storage box 20 and the inner wall of the drainage box 10, thereby dividing the accommodating space 11 into an upper sewage area and a lower clean water area. Specifically, the sewage area is located above the rotating block 41 and the filter frame 43, and the clean water area is located below the rotating block 41 and the filter frame 43.

[0067] When the sewage pump 32 discharges the sewage from the drain pipe 31 through an opening at one end of the drain pipe 31, the sewage enters the sewage area and falls onto the rotating block 41 and the fan-shaped frame composed of the vertical filter plate 432 and the arc filter plate 433. The sewage in the filter frame 43 is blocked by the filter frame 43, and the impurities in the sewage are then blocked by the filter frame 43, and the water enters the clean water area through the filter frame 43.

[0068] Reference Figure 2 and Figure 5 At the same time, the motor 421 is started, and the rotating rod 42 is driven to drive the rotating block 41 to flip upward, so that the rotating block 41 is separated from the outer wall of the filter frame 43. At the same time, the side wall of the rotating block 41 flush with the top wall of the filter frame 43 is rotated to a vertical state, that is, the sewage is pushed into the filter frame 43, the flow of sewage is promoted, the rate at which the sewage passes through the filter frame 43 and enters the drainage box 10 is increased, and the work efficiency is improved.

[0069] During this process, the side wall of the rotating block 41 away from the rotating rod 42 is always in contact with the side wall of the storage box 20, that is, the sewage is not easy to leak into the drainage box 10 from between the rotating block 41 and the side wall of the storage box 20, so that after the first filtration by the drainage component 30, it is filtered for the second time by the filter frame 43, ensuring the thoroughness of the filtration, making the disinfection effect of the disinfectant water not easily affected by impurities, thereby ensuring the sewage treatment effect.

[0070] Reference Figure 2 and Figure 5 A water shield 60 is provided in the accommodating space 11 . The water shield 60 is located above the filter frame 43 and is an arc-shaped plate. The central axis of the water shield 60 is coaxial with the rotating rod 42 .

[0071] When the sewage is discharged from the opening at one end of the drain pipe 31 into the accommodating space 11, the water shield 60 acts as a barrier, making it difficult for the sewage to splash onto the side of the water shield 60 away from the filter frame 43, that is, the sewage is restricted between the filter frame 43 and the water shield 60. At the same time, the inner wall of the water shield 60 acts as a guide. When the sewage falls on the inner wall of the water shield 60, the sewage will drip into the filter frame 43 along the trajectory of the inner wall of the water shield 60, thereby achieving drainage, increasing the stability of the rotating block 41 flipping upward and pushing the sewage above the rotating block 41 into the filter frame 43.

[0072] Reference Figure 2 and Figure 5 To allow the sewage in the filter frame 43 to pass through the filter frame 43 more quickly and flow into the drainage tank 10, an arc-shaped connecting rod 411 is fixed to the rotating block 41. The center of the connecting rod 411 is located on the central axis of the rotating rod 42. A squeezing plate 50 is mounted on the rotating rod 42. The squeezing plate 50 is flush with the horizontal side of the rotating block 41 and extends along the length of the drainage tank 10. The squeezing plate 50 penetrates the connecting rod 411, meaning that the squeezing plate 50 can move on the connecting rod 411 about the central axis of the rotating rod 42. The rotating rod 42 is also mounted with a torsion spring 51. One end of the torsion spring 51 is fixed to the rotating rod 42, and the other end is fixed to the squeezing plate 50. The torsion spring 51 is used to push the squeezing plate 50 toward the filter frame 43, i.e., located at the end of the connecting rod 411.

[0073] When the rotating block 41 flips upward, it drives the connecting rod 411 and the extrusion plate 50 to move downward at the same time. After the rotating block 41 rotates 90 degrees, the extrusion plate 50 contacts the impurities in the filter frame 43 and pushes the impurities against the inner wall of the filter frame 43. Due to the restriction of impurities, a gap exists between the extrusion plate 50 and the inner wall of the filter frame 43, so that the torsion spring 51 is deformed at this time. The torsion spring 51 always applies a force to push the extrusion plate 50 toward the filter frame 43, so as to squeeze out the sewage in the impurities, increase the rate at which the sewage passes through the filter frame 43, and improve work efficiency.

[0074] Reference Figure 2 and Figure 5 When excessive impurities accumulate in the filter frame 43, a mounting block 431 is fixed to the side wall of the filter frame 43 to prevent the impurities from clogging the pores of the filter frame 43. The mounting block 431 is arranged along the width of the drain box 10, and the end face of the mounting block 431 is T-shaped. A mounting groove 12 is horizontally opened on the inner wall of the drain box 10. The mounting groove 12 is a T-shaped slot that matches the mounting block 431. The mounting block 431 can be inserted into the mounting groove 12 and move within the mounting groove 12. A mounting hole 13 is opened through the side wall of the drain box 10. The mounting hole 13 is arranged opposite the motor 421. One end of the mounting groove 12 passes through the drain box 10 and is connected to the mounting hole 13. A cover plate 70 for covering the mounting hole 13 is hinged on the inner wall of the mounting hole 13.

[0075] When too much impurities accumulate in the filter frame 43, the impurities tend to clog the pores of the filter frame 43. At this time, the cover plate 70 is rotated away from the drain box 10 to open the mounting hole 13. Then, one end of the filter frame 43 is pulled out of the drain box 10 through the mounting hole 13 to disassemble the filter frame 43, making it easier to clean the filter frame 43. After cleaning the filter frame 43, the filter frame 43 is inserted into the mounting hole 13, with the mounting block 431 aligned with the mounting groove 12 and inserted into the mounting groove 12 from one end. Then, the mounting block 431 is moved along the length of the mounting groove 12 until the filter frame 43 is completely placed in the drain box 10, completing the installation of the filter frame 43 in the drain box 10. Then, the cover plate 70 is moved toward the drain box 10 to re-block the mounting hole 13, making it easier to treat the sewage.

[0076] The implementation principle of a municipal sewage drainage device according to an embodiment of the present application is as follows: during operation, sewage is first poured into a storage tank 20, where it enters a drainage assembly 30. During this process, the drainage assembly 30 performs a primary filtration on the sewage, so that larger particles of impurities in the sewage are blocked in the storage tank 20. The sewage filtered by the drainage assembly 30 is then transported to the storage space 11 by the drainage assembly 30 and located in the filter assembly 40. The filter assembly 40 then performs a secondary filtration on the sewage, so that the remaining impurities in the sewage are blocked in the filter assembly 40. Finally, the sewage after the two filtrations can be smoothly discharged into the drainage tank 10 through the filter assembly 40. At this time, disinfectant water is introduced into the drainage tank 10 through the water inlet pipe 80 and mixed with the filtered sewage in the drainage tank 10 to disinfect the sewage. The disinfected water is then discharged through the water outlet pipe 90, completing the sewage treatment.

[0077] The impurities in the filtered sewage are left in the storage box 20 and the filter assembly 40, and the storage box 20 is a concave box structure, so it is not easy for impurities to enter the drainage box 10 from the storage box 20 and mix with the disinfectant water. The filter assembly 40 covers the entire accommodating space 11, so that the only channel connecting the filter assembly 40 and the disinfectant water in the drainage box 10 is through the filter assembly 40, but the impurities are blocked by the filter assembly 40, that is, no filtered impurities will enter the drainage box 10, thereby avoiding the influence of impurities on the disinfection effect of the disinfectant water, and effectively ensuring the treatment effect of the disinfectant water on sewage.

[0078] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A municipal sewage drainage device for discharging sewage, characterized in that: include: A drainage box (10), wherein the top of the drainage box (10) is an open structure, a water inlet pipe (80) for introducing disinfectant water into the drainage box (10) is connected on the side wall of the drainage box (10), and a water outlet pipe (90) is connected on the side wall of the drainage box (10); A storage box (20) is horizontally arranged in the drainage box (10) and has an open top, wherein the side wall of the storage box (20) in the longitudinal direction is in contact with the inner wall of the drainage box (10) in the longitudinal direction, the side wall of one end of the storage box (20) in the width direction is in contact with the inner wall of one end of the drainage box (10) in the width direction, and an accommodating space (11) is formed between the side wall of the other end of the storage box (20) in the width direction and the side wall of the other end of the drainage box (10) in the width direction; a drainage assembly (30), disposed in the storage box (20), for filtering sewage in the storage box (20) and discharging the filtered sewage out of the storage box (20); A filter assembly (40) is disposed in the accommodating space (11) and divides the accommodating space (11) into an upper sewage area and a lower clean water area. The filter assembly (40) is used to receive and filter the filtered sewage discharged from the drainage assembly (30); The drainage assembly (30) comprises: A drainage pipe (31) is placed in the storage box (20), one end of the drainage pipe (31) is open and communicates with the filter assembly (40), a plurality of filter holes (311) are provided on the side wall of the drainage pipe (31), a filter screen (312) is provided in the filter holes (311), and the circumferential side wall of the filter screen (312) is fixedly attached to the inner wall of the filter hole (311); A connecting pipe (33) is provided through the storage box (20), one end of the connecting pipe (33) extends into the sewage area, and the other end is connected to the drain pipe (31) through a sewage pump (32), the sewage pump (32) is provided on the storage box (20), and the sewage pump (32) is used to pump water in the drain pipe (31) into the filter assembly (40); The filter assembly (40) comprises: A rotating rod (42) is arranged horizontally, the rotating rod (42) is arranged along the width direction of the drainage box (10), and the end of the rotating rod (42) is rotatably connected to the inner wall of the drainage box (10); A filter frame (43) is arranged along the width direction of the drainage box (10), and the filter frame (43) includes a vertical filter plate (432) and a circular filter plate (433). The vertical filter plate (432) is vertically arranged, and the end wall of the vertical filter plate (432) abuts against the inner wall of the drainage box (10). The circular filter plate (433) is a quarter-circular arc surface arranged with the rotating rod (42) as the central axis and the vertical filter plate (432) as the radius. The end wall of the circular filter plate (433) abuts against the inner wall of the drainage box (10), and the bottom end of the circular filter plate (433) is fixedly connected to the bottom end of the vertical filter plate (432); A rotating block (41), the rotating block (41) is arranged along the width direction of the drainage box (10), the end section of the rotating block (41) is a sector with a central angle of 90 degrees, the central axis of the rotating block (41) is coaxial with the rotating rod (42) and is fixedly connected to the rotating rod (42), a radial edge on one side of the rotating block (41) abuts against the vertical filter plate (432), the rotating block (41) rotates, the arc surface of the rotating block (41) abuts against the outer wall of the storage box (20), and the rotating block (41) is used to push sewage into the filter frame (43); The rotating block (41) is connected to an extrusion plate (50) via a connecting rod (411); the extrusion plate (50) is perpendicular to the rotating rod (42); one end of the extrusion plate (50) is rotatably connected to the rotating rod (42); the rotating block (41) rotates to drive the extrusion plate (50) to abut against the inner wall of the filter frame (43); The extrusion plate (50) can move on the connecting rod (411) toward or away from the rotating block (41), and a torsion spring (51) is sleeved on the rotating rod (42). One end of the torsion spring (51) is fixed to the rotating rod (42), and the other end is fixed to the extrusion plate (50), so as to push the extrusion plate (50) toward or away from the rotating block (41).

2. The municipal sewage drainage device according to claim 1, characterized in that: The drainage pipe (31) is arranged horizontally, and the drainage pipe (31) is arranged in an S-shape in the storage box (20).

3. The municipal sewage drainage device according to claim 1, characterized in that: An insert block (313) is fixed on the side wall of the drain pipe (31), a slot (211) is provided on the side wall of the storage box (20) in a vertical direction, the top end of the slot (211) passes through the top end of the side wall of the storage box (20), and the insert block (313) is inserted into the slot (211) and can move in the slot (211).

4. The municipal sewage drainage device according to claim 1, characterized in that: A water shield (60) is provided above the filter frame (43), and the water shield (60) is fixedly connected to the inner wall of the drainage box (10). The water shield (60) is used to guide sewage into the filter frame (43).

5. The municipal sewage drainage device according to claim 1, characterized in that: A mounting block (431) is fixed on the side wall of the filter frame (43); a mounting groove (12) is provided on the inner wall of the drainage box (10) in a horizontal direction; the mounting block (431) is inserted into the mounting groove (12) and can move in the mounting groove (12); a mounting hole (13) for the filter frame (43) to pass through is provided on the side wall of the drainage box (10); one end of the mounting groove (12) is communicated with the mounting hole (13); and a cover plate (70) for covering the mounting hole (13) is hinged on the inner wall of the mounting hole (13).

6. The municipal sewage drainage device according to claim 3, characterized in that: The storage box (20) comprises: The storage frame (21) is through-connected from top to bottom, and the outer wall of the storage frame (21) is fixedly attached to the inner wall of the drainage box (10). The accommodating space (11) is located between one side of the storage frame (21) in the length direction and the inner wall of the drainage box (10). The slot (211) and the sewage pump (32) are both arranged on the inner wall of the storage frame (21). A storage plate (22) is located at the bottom of the storage frame (21), and the storage plate (22) is rotatably connected to the inner wall of the drainage box (10) via a rotating shaft (221); A propulsion spring (23) is provided between the bottom wall of the storage plate (22) and the inner wall of the drainage box (10), one end of the propulsion spring (23) is fixed to the inner wall of the drainage box (10), and the other end is fixed to the bottom wall of the storage plate (22), and is used to flip the end of the storage plate (22) close to the filter assembly (40) downward with the rotating shaft (221) as the axis.

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