Building water supply and drainage device

Abstract

A building water supply and drainage device relates to the technical field of building water supply and drainage and comprises a pipe body, a filtering mechanism for filtering domestic sewage is arranged on the inner wall of the pipe body, and a transition assembly communicated with an inner cavity of the pipe body is arranged on the outer wall of the pipe body; the filtering mechanism comprises a fixed circular plate which is coaxially and fixedly connected to the inner wall of the pipe body, a plurality of liquid leakage grooves which vertically penetrate through the fixed circular plate are evenly distributed in the top of the fixed circular plate in the circumferential direction, and an upper supporting circular plate and a lower supporting circular plate which are arranged up and down are coaxially and fixedly connected to the position, located below the fixed circular plate, of the inner wall of the pipe body; the top of the lower supporting circular plate abuts against the bottom of the upper supporting circular plate, normally-open grooves, first liquid passing grooves and second liquid passing grooves which are vertically formed in a penetrating mode are evenly distributed in the top of the upper supporting circular plate and the top of the lower supporting circular plate in the circumferential direction, and containing grooves are embedded in the upper supporting circular plate and the lower supporting circular plate. The problem that an existing building water supply and drainage device is poor in filtering area adjustability is solved; and normal operation of the device is influenced when the filtering assembly is cleaned.

Description

Technical Field

[0001] The present invention relates to the technical field of building water supply and drainage, and specifically to a building water supply and drainage device. Background Art

[0002] Water supply and drainage devices are facilities that provide water supply and wastewater drainage for people's living, production, municipal administration, and fire protection. Water supply and drainage devices are an essential and important part of any building. The water supply and drainage devices of general buildings include a domestic water supply system, a domestic drainage system, and a fire protection system. These systems are all important monitoring objects of the building automation system. With energy conservation and environmental protection becoming the mainstream of the current era's development, applying the concept of energy conservation and environmental protection to building water supply and drainage devices has also become an important part of the current construction of water supply and drainage systems. The current water-saving measures in water supply and drainage devices are to collect domestic sewage such as bath water and laundry water with a relatively low pollution level discharged from buildings, and after simple filtration treatment, the water is applied to flushing systems such as flush toilets.

[0003] During the use of existing building water supply and drainage devices, deficiencies have gradually emerged, mainly manifested in the following aspects: First, the filter area is poorly adjustable. Specifically, the amount of domestic sewage discharged from buildings is unstable. Taking residential buildings as an example, the peak water consumption periods of residential buildings are concentrated in the morning and evening. Therefore, the peak periods of domestic sewage discharge are also concentrated in the same time periods, and the amount of domestic sewage discharged at other times is less. The filter area of the filter component in the device is fixed, and a certain water pressure is required for normal filtration of domestic sewage. During the low water consumption period, the amount of domestic sewage discharged is small, and the pressure of a small amount of domestic sewage passing through the filter component during filtration is small, resulting in a slow filtration speed of domestic sewage, affecting the water use of the building flushing system. During the peak water consumption period, the amount of domestic sewage discharged surges, and when filtering a large flow of domestic sewage, the filter component is overloaded and cannot meet the filtration requirements, resulting in drainage blockage.

[0004] Second, cleaning the filter component affects the normal operation of the water supply and drainage device. Specifically, the filter component filters impurities in domestic sewage. With the long-term use of the filter component, a lot of impurities will be intercepted on the surface. When cleaning the filter component, it needs to be disassembled and manually cleaned with cleaning tools. The cleaning process is time-consuming and laborious, and disassembling the filter component will affect the normal operation of the water supply and drainage device.

[0005] In summary, it is obvious that the existing technology has inconveniences and defects in actual use, so it is necessary to make improvements. Summary of the Invention

[0006] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a building water supply and drainage device, which can adjust the filtering area of the filtering component according to the discharge amount of domestic sewage. When the discharge amount of domestic sewage is small, the filtering area of the filtering component becomes smaller, the water passing diameter of domestic sewage becomes smaller, the water flow speed becomes larger, and the water pressure increases, thereby accelerating the filtering speed of domestic sewage and ensuring the normal water use of the flushing system. When the discharge amount of domestic sewage is large, the filtering area of the filtering component becomes larger, improving the filtering rate of domestic sewage and effectively preventing drainage blockage; The device can also automatically clean the filtering component without stopping the filtering of domestic sewage, and the cleaning process is simple, improving the practicability of the device.

[0007] To solve the above problems, the present invention provides the following technical solutions: A building water supply and drainage device includes a pipe body. A filtering mechanism for filtering domestic sewage is provided on the inner wall of the pipe body, and a transition component communicating with its inner cavity is provided on the outer wall of the pipe body; The filtering mechanism includes a fixed circular plate coaxially fixed on the inner wall of the pipe body. A plurality of vertically penetrating liquid leakage grooves are circumferentially and uniformly arranged on the top of the fixed circular plate. An upper support circular plate and a lower support circular plate arranged vertically are coaxially fixed on the inner wall of the pipe body at a position below the fixed circular plate. The top of the lower support circular plate abuts against the bottom of the upper support circular plate. Vertically penetrating normally open grooves, first liquid passing grooves and second liquid passing grooves are circumferentially and uniformly arranged on the tops of the upper support circular plate and the lower support circular plate. Accommodating grooves are embedded inside the upper support circular plate and the lower support circular plate. The accommodating groove in the upper support circular plate communicates with the first liquid passing groove, and the accommodating groove in the lower support circular plate communicates with the second liquid passing groove. Sliding arc plates arranged in a swinging manner are provided in the accommodating grooves. The top and bottom of the sliding arc plate respectively rub against the top and bottom of the accommodating groove, and the opposite side walls of the sliding arc plate respectively rub against the opposite inner walls of the accommodating groove. A vertically penetrating control groove is provided on the top of the sliding arc plate. The diameter of the control groove is the same as that of the first liquid passing groove or the second liquid passing groove. When the sliding arc plate swings to make the control groove completely overlap with the first liquid passing groove or the second liquid passing groove, the first liquid passing groove or the second liquid passing groove is completely opened. When the sliding arc plate swings to make the control groove completely non-overlap with the first liquid passing groove or the second liquid passing groove, the first liquid passing groove or the second liquid passing groove is closed, The side walls of the sliding arc-shaped plate are fixedly connected with horizontally arranged connecting plates. The top of the connecting plate inside the upper support circular plate is fixedly connected with a rotating tube coaxially arranged with the upper support circular plate. The top end of the rotating tube passes upward through the upper support circular plate and is rotationally and sealingly connected to the bottom of the fixed circular plate. The rotating tube is rotationally and sealingly connected to the upper support circular plate. The top of the connecting plate inside the lower support circular plate is fixedly connected with a rotating column coaxially arranged with the lower support circular plate. The top end of the rotating column passes upward through the lower support circular plate, the upper support circular plate and the connecting plate inside the upper support circular plate in sequence and extends into the rotating tube. The lower support circular plate, the upper support circular plate, the connecting plate inside the upper support circular plate and the rotating tube are all rotationally connected to the rotating column. Three vertically fixed tubes are circumferentially and uniformly distributed at the bottom of the lower support circular plate. The three fixed tubes are correspondingly communicated with the normally open groove, the first liquid passage groove and the second liquid passage groove on the lower support circular plate. A sliding circular plate is coaxially arranged at a position below the fixed tube inside the tube body and is vertically and slidably sealed with the inner wall of the fixed tube. Annular positioning grooves are arranged at positions below the fixed tubes at the top of the sliding circular plate. Circular grooves vertically penetrating are arranged at positions of the sliding circular plate at the top inside the annular positioning grooves. A circular filter plate is coaxially fixedly connected to the inner wall of the circular groove. The top of the circular filter plate is flush with the top of the sliding circular plate. When the sliding circular plate rises to the highest position, the lower port of the fixed tube is inserted into the annular positioning groove. A cleaning assembly for cleaning the circular filter plate is arranged on the sliding circular plate.

[0008] As an optimized scheme, the cleaning assembly includes an upper fixed cylinder coaxially fixedly connected to the bottom of the lower support circular plate. An internal motor is fixedly arranged inside the upper fixed cylinder. The output end of the internal motor passes downward through the upper fixed cylinder and is fixedly connected with a driving shaft. A driven tube is rotatably arranged at the top of the sliding circular plate coaxially. The bottom end of the driving shaft extends downward into the driven tube and is vertically slidably connected with the driven tube. A plurality of cleaning brushes in frictional contact with the top of the sliding circular plate are circumferentially and uniformly distributed on the outer wall of the driven tube. A plurality of vertically penetrating communication grooves are circumferentially and uniformly distributed at the top of the sliding circular plate. The communication grooves and the circular filter plates are arranged alternately in the circumferential direction. A plurality of fixedly arranged discharge boxes are circumferentially and uniformly distributed at the bottom of the sliding circular plate. The plurality of discharge boxes are correspondingly communicated with the plurality of communication grooves. A plurality of avoidance grooves are circumferentially and uniformly distributed at a position below the sliding circular plate on the inner wall of the tube body. A plurality of waste discharge grooves are circumferentially and uniformly distributed on the outer wall of the tube body. The plurality of waste discharge grooves are correspondingly communicated with the plurality of avoidance grooves. One end of the discharge box is open. The open end of the discharge box extends into the avoidance groove and is in frictional contact with the inner wall of the avoidance groove. A vertically arranged sealing plate is fixedly arranged at the bottom of the discharge box. The opposite side walls of the sealing plate are slidably and sealingly connected with the opposite inner walls of the avoidance groove correspondingly. When the sliding circular plate descends to the lowest position, the open end of the discharge box is communicated with the waste discharge groove. When the sliding circular plate rises to the highest position, the sealing plate completely closes the waste discharge groove.

[0009] As an optimized solution, the transition component includes a support cylinder fixedly sleeved on the outer wall of the pipe body. The top of the support cylinder is open. An annular filter plate is fixedly sleeved on the outer wall of the pipe body at a position inside the support cylinder. The outer wall of the annular filter plate is fixedly connected to the inner wall of the support cylinder. The top of the annular filter plate is flush with the top of the support cylinder. A vertically slidable lifting cylinder is sleeved on the outer wall of the pipe body above the support cylinder. The bottom of the lifting cylinder is open. A plurality of connecting pipes communicating with its inner cavity are circumferentially and uniformly distributed at the bottom of the support cylinder. The lower port of the connecting pipe extends downward to below the avoidance groove and communicates with the inner cavity of the pipe body. A rotating circular plate rotatably and sealingly connected to the inner wall of the pipe body is coaxially provided at the top of the fixed circular plate. The bottom of the rotating circular plate is frictionally abutted against the fixed circular plate. A plurality of vertically penetrating liquid leakage holes are circumferentially and uniformly distributed at the top of the rotating circular plate. A plurality of arc-shaped grooves are circumferentially and uniformly distributed at the position of the inner wall of the pipe body above the rotating circular plate. A plurality of liquid outlet grooves are circumferentially and uniformly distributed at the position of the outer wall of the pipe body inside the lifting cylinder. The plurality of liquid outlet grooves respectively communicate with the plurality of arc-shaped grooves. A plurality of fixed arc-shaped plates are circumferentially and uniformly distributed at the top of the rotating circular plate. The ends of the plurality of fixed arc-shaped plates respectively extend into the plurality of arc-shaped grooves and are frictionally abutted against the inner walls of the arc-shaped grooves. The top and bottom of the fixed arc-shaped plate are slidably and sealingly connected to the top and bottom of the arc-shaped groove respectively. When the rotating circular plate rotates to make the liquid leakage holes completely overlap with the liquid leakage grooves, the liquid outlet grooves are completely closed by the fixed arc-shaped plates. When the rotating circular plate rotates to make the liquid leakage holes completely non-overlap with the liquid leakage grooves, the liquid outlet grooves are opened.

[0010] As an optimized solution, an internal groove is provided inside the fixed circular plate. Two driving motors are fixedly provided at the bottom of the internal groove. The output end of one of the driving motors extends downward through the fixed circular plate into the rotating pipe and is fixedly connected to the rotating column. The output end of the other driving motor extends downward through the fixed circular plate and is fixedly connected with a driving gear. A driven gear meshing with the driving gear is fixedly sleeved on the outer wall of the rotating pipe. A servo motor is fixedly provided at the top of the internal groove. The output end of the servo motor extends upward through the fixed circular plate and is fixedly connected to the rotating circular plate.

[0011] As an optimized solution, three horizontally fixedly arranged water pipes are circumferentially and uniformly distributed on the outer wall of the support cylinder. One port of the water pipe passes through the support cylinder and the pipe body and extends above the upper support circular plate and is fixedly provided with a high-pressure nozzle with a communicating setting. The water spraying ports of the three high-pressure nozzles are all downward and are respectively located directly above the normally open groove, the first liquid passing groove and the second liquid passing groove. A control valve is provided on the water pipe. The other port of the water pipe is communicated with a high-pressure water source.

[0012] As an optimized solution, a fixed lower fixing cylinder is coaxially arranged inside the tube body at a position below the sliding circular plate. A vertically slidable lifting column penetrates through the top of the lower fixing cylinder. The lifting column is fixedly connected to the sliding circular plate. A vertically arranged driving telescopic cylinder is fixedly arranged at the inner bottom of the lower fixing cylinder. The telescopic end of the driving telescopic cylinder is fixedly connected to the lifting column.

[0013] As an optimized solution, the lower fixing cylinder is fixedly connected to the inner wall of the tube body through a plurality of support bars.

[0014] As an optimized solution, a fixed circular ring is fixedly sleeved on the outer wall of the tube body at a position above the lifting cylinder. Two vertically arranged lifting telescopic cylinders are fixedly arranged at the bottom of the fixed circular ring. The telescopic ends of the lifting telescopic cylinders are fixedly connected to the lifting cylinder.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. When filtering domestic sewage during the low water consumption period, the domestic sewage discharged from the building enters the pipe body. The domestic sewage in the pipe body passes through the liquid leakage holes and the liquid leakage grooves and enters the area between the fixed circular plate and the upper support circular plate. The domestic sewage above the upper support circular plate successively passes through the normally open grooves on the upper support circular plate and the lower support circular plate and enters the fixed pipe. The domestic sewage in the fixed pipe is filtered by the circular filter plate below the normally open groove and then enters the flushing system through the pipe body. When filtering domestic sewage during the high water consumption period, one of the driving motors drives the rotating column to rotate, thereby driving the sliding arc plate in the lower support circular plate to swing until the sliding arc plate in the lower support circular plate swings to make the control groove completely overlap with the second liquid passing groove. The other motor drives the driving gear, the driven gear and the rotating pipe to rotate, thereby driving the sliding arc plate in the upper support circular plate to swing until the sliding arc plate in the upper support circular plate swings to make the control groove completely overlap with the first liquid passing groove. At this time, the first liquid passing groove and the second liquid passing groove are completely opened. The domestic sewage above the upper support circular plate can respectively pass through the normally open grooves, the first liquid passing groove and the second liquid passing groove on the upper support circular plate and the lower support circular plate and enter the three fixed pipes, and the domestic sewage is filtered by the three circular filter plates. Similarly, during the normal water consumption period, one of the first liquid passing groove or the second liquid passing groove can be opened, so that two circular filter plates can be used to filter the domestic sewage at the same time. The filter area of the device has good adjustability and can adjust the number of circular filter plates used according to the discharge amount of domestic sewage, thereby realizing the function of adjusting the filter area. When the discharge amount of domestic sewage is small, only one circular filter plate filters the domestic sewage, the filter area is small, the water passing diameter of the domestic sewage becomes smaller, the water flow speed becomes larger, and the water pressure increases, thereby accelerating the filtering speed of the domestic sewage and ensuring the normal water use of the flushing system. When the discharge amount of domestic sewage is large, three circular filter plates filter the domestic sewage, the filter area is large, and the filtering rate of the domestic sewage is improved, effectively preventing drainage blockage; 2. When cleaning the circular filter plate, the servo motor drives the rotating circular plate to rotate, and then drives the fixed arc plate to rotate. When the rotating circular plate rotates to a position where the liquid leakage holes and the liquid leakage grooves do not overlap at all, the liquid outlet groove opens, and at this time, the liquid leakage groove is completely closed. The domestic sewage in the pipe body enters the lifting cylinder through the liquid outlet groove. The domestic sewage in the lifting cylinder enters the support cylinder after being filtered by the annular filter plate. The filtered domestic sewage in the support cylinder is discharged into the pipe body through the connecting pipe and enters the flushing system. Then, the telescopic cylinder is driven to drive the lifting column, the sliding circular plate, the discharging box, the sealing plate, the driven pipe and the cleaning brush to move downward to the lowest position. At this time, the open end of the discharging box is communicated with the waste discharging groove, and the cleaning brush does not interfere with the fixed pipe. The control valve is opened, and the external high-pressure water source enters the water passing pipe and is sprayed out by the high-pressure nozzle. The high-pressure water source sprayed by the high-pressure nozzle can clean the impurities adsorbed on the normally open groove, the first liquid passing groove, the second liquid passing groove and the inner wall of the fixed pipe. The cleaned sewage drops downward to the top of the sliding circular plate. At the same time, the built-in motor drives the driving shaft, the driven pipe and the cleaning brush to rotate. The rotating cleaning brush cleans the surface of the circular filter plate in cooperation with the water source. The cleaned sewage enters the discharging box through the communication groove and is discharged to the outside of the pipe body through the waste discharging groove, realizing the function of automatically cleaning the circular filter plate without stopping the filtration of domestic sewage. The cleaning process is simple, which improves the practicability of the device; 3. When cleaning the annular filter plate, the lifting telescopic cylinder drives the lifting cylinder to slide upward, the lifting cylinder is separated from the support cylinder, and the annular filter plate is exposed, so that the annular filter plate can be directly cleaned. The cleaning process is simple, which further improves the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual scale.

[0017] Figure 1 is the structural schematic diagram of the present invention; Figure 2 is the structural schematic diagram of the filtering mechanism of the present invention; Figure 3 is the structural schematic diagram inside the upper support circular plate of the present invention; Figure 4 is the structural schematic diagram inside the upper support circular plate and the lower support circular plate of the present invention; Figure 5 is the structural schematic diagram inside the built-in groove of the present invention; Figure 6 is the structural schematic diagram of the cleaning assembly of the present invention; Figure 7Schematic diagram of the internal structure of the discharging box of the present invention; Figure 8 Schematic diagram of the avoiding groove and waste discharging groove of the present invention; Figure 9 Schematic diagram of the structure when cleaning the circular filter plate of the present invention; Figure 10 Schematic diagram of the structure when the first liquid passing groove and the second liquid passing groove of the present invention are opened.

[0018] In the figure: 1 - pipe body; 2 - fixed ring; 3 - lifting telescopic cylinder; 4 - lifting cylinder; 5 - transition component; 6 - support cylinder; 7 - annular filter plate; 8 - filtering mechanism; 9 - cleaning component; 10 - connecting pipe; 11 - sliding circular plate; 12 - lower support circular plate; 13 - upper support circular plate; 14 - fixed circular plate; 15 - rotating circular plate; 16 - liquid leakage groove; 17 - liquid leakage hole; 18 - fixed arc plate; 19 - arc groove; 20 - normally open groove; 21 - first liquid passing groove; 22 - liquid outlet groove; 23 - avoiding groove; 24 - high-pressure spray head; 25 - water pipe; 26 - control valve; 27 - second liquid passing groove; 28 - fixed pipe; 29 - circular filter plate; 30 - annular positioning groove; 31 - circular groove; 32 - accommodating groove; 33 - sliding arc plate; 34 - control groove; 35 - connecting plate; 36 - rotating pipe; 37 - rotating column; 38 - built-in groove; 39 - driven gear; 40 - servo motor; 41 - driving motor; 42 - driving gear; 43 - sealing plate; 44 - discharging box; 45 - cleaning brush; 46 - driven pipe; 47 - driving shaft; 48 - built-in motor; 49 - upper fixed cylinder; 50 - communicating groove; 51 - support bar; 52 - lifting column; 53 - driving telescopic cylinder; 54 - lower fixed cylinder; 55 - waste discharging groove. Detailed implementation manners

[0019] The embodiments of the technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0020] As Figures 1 to 10 shown, a building water supply and drainage device includes a pipe body 1, a filtering mechanism 8 for filtering domestic sewage is arranged on the inner wall of the pipe body 1, and a transition component 5 communicated with its inner cavity is arranged on the outer wall of the pipe body 1; The filtering mechanism 8 includes a fixed circular plate 14 coaxially and fixedly connected to the inner wall of the pipe body 1. A plurality of liquid leakage grooves 16 vertically penetrating through are circumferentially and uniformly distributed on the top of the fixed circular plate 14. An upper support circular plate 13 and a lower support circular plate 12 arranged vertically are coaxially and fixedly connected to the inner wall of the pipe body 1 at a position below the fixed circular plate 14. The top of the lower support circular plate 12 abuts against the bottom of the upper support circular plate 13. Vertically penetrating through and circumferentially uniformly distributed normal open grooves 20, first liquid passage grooves 21 and second liquid passage grooves 27 are provided on the tops of both the upper support circular plate 13 and the lower support circular plate 12. Accommodating grooves 32 are embedded inside both the upper support circular plate 13 and the lower support circular plate 12. The accommodating groove 32 inside the upper support circular plate 13 is communicated with the first liquid passage groove 21, and the accommodating groove 32 inside the lower support circular plate 12 is communicated with the second liquid passage groove 27. Swingingly arranged sliding arc-shaped plates 33 are provided in the accommodating grooves 32. The top and bottom of the sliding arc-shaped plate 33 are frictionally abutted against the top and bottom of the accommodating groove 32 respectively, and the opposite side walls of the sliding arc-shaped plate 33 are frictionally abutted against the opposite inner walls of the accommodating groove 32. A vertically penetrating control groove 34 is provided on the top of the sliding arc-shaped plate 33. The diameter of the control groove 34 is the same as that of the first liquid passage groove 21 or the second liquid passage groove 27. When the sliding arc-shaped plate 33 swings to make the control groove 34 completely overlap with the first liquid passage groove 21 or the second liquid passage groove 27, the first liquid passage groove 21 or the second liquid passage groove 27 is completely opened. When the sliding arc-shaped plate 33 swings to make the control groove 34 completely non-overlap with the first liquid passage groove 21 or the second liquid passage groove 27, the first liquid passage groove 21 or the second liquid passage groove 27 is closed. Connecting plates 35 horizontally arranged are fixedly connected to the side walls of the sliding arc-shaped plates 33. A rotating pipe 36 coaxially arranged with the upper support circular plate 13 is fixedly connected to the top of the connecting plate 35 inside the upper support circular plate 13. The top end of the rotating pipe 36 passes upward through the upper support circular plate 13 and is rotatably and sealingly connected to the bottom of the fixed circular plate 14. The rotating pipe 36 is rotatably and sealingly connected to the upper support circular plate 13. A rotating column 37 coaxially arranged with the lower support circular plate 12 is fixedly connected to the top of the connecting plate 35 inside the lower support circular plate 12. The top end of the rotating column 37 passes upward through the lower support circular plate 12, the upper support circular plate 13 and the connecting plate 35 inside the upper support circular plate 13 in sequence and extends into the rotating pipe 36. The lower support circular plate 12, the upper support circular plate 13, the connecting plate 35 inside the upper support circular plate 13 and the rotating pipe 36 are all rotatably connected to the rotating column 37. Three vertically fixed fixing tubes 28 are evenly distributed along the circumference at the bottom of the lower support circular plate 12. The three fixing tubes 28 correspondingly communicate with the normally open slot 20, the first liquid passage slot 21 and the second liquid passage slot 27 on the lower support circular plate 12. Inside the pipe body 1, at a position below the fixing tube 28, a sliding circular plate 11 is coaxially arranged and is vertically slidably and sealingly connected to its inner wall. At a position below the fixing tube 28 at the top of the sliding circular plate 11, annular positioning grooves 30 are provided. At a position within the annular positioning grooves 30 at the top of the sliding circular plate 11, circular grooves 31 vertically penetrating are provided. The inner wall of the circular groove 31 is coaxially fixedly connected with a circular filter plate 29. The top of the circular filter plate 29 is flush with the top of the sliding circular plate 11. When the sliding circular plate 11 rises to the highest position, the lower port of the fixing tube 28 is inserted into the annular positioning groove 30. A cleaning assembly 9 for cleaning the circular filter plate 29 is provided on the sliding circular plate 11.

[0021] The cleaning assembly 9 includes an upper fixing cylinder 49 coaxially fixedly connected to the bottom of the lower support circular plate 12. An internal motor 48 is fixedly arranged inside the upper fixing cylinder 49. The output end of the internal motor 48 extends downward through the upper fixing cylinder 49 and is fixedly connected with a driving shaft 47. At the top of the sliding circular plate 11, a driven tube 46 rotatably arranged is coaxially provided. The bottom end of the driving shaft 47 extends downward into the driven tube 46 and is vertically slidably connected to the driven tube 46. A plurality of cleaning brushes 45 in frictional contact with the top of the sliding circular plate 11 are evenly distributed along the circumference on the outer wall of the driven tube 46. A plurality of vertically penetrating communication grooves 50 are evenly distributed along the circumference at the top of the sliding circular plate 11. The communication grooves 50 and the circular filter plate 29 are arranged alternately along the circumference. A plurality of fixedly arranged discharge boxes 44 are evenly distributed along the circumference at the bottom of the sliding circular plate 11. The plurality of discharge boxes 44 correspondingly communicate with the plurality of communication grooves 50. A plurality of avoidance grooves 23 are evenly distributed along the circumference at a position below the sliding circular plate 11 on the inner wall of the pipe body 1. A plurality of waste discharge grooves 55 are evenly distributed along the circumference on the outer wall of the pipe body 1. The plurality of waste discharge grooves 55 correspondingly communicate with the plurality of avoidance grooves 23. One end of the discharge box 44 is open. The open end of the discharge box 44 extends into the avoidance groove 23 and is in frictional contact with the inner wall of the avoidance groove 23. A vertically arranged sealing plate 43 is fixedly provided at the bottom of the discharge box 44. The opposite side walls of the sealing plate 43 are slidably and sealingly connected to the opposite inner walls of the avoidance groove 23. When the sliding circular plate 11 descends to the lowest position, the open end of the discharge box 44 communicates with the waste discharge groove 55. When the sliding circular plate 11 rises to the highest position, the sealing plate 43 completely closes the waste discharge groove 55.

[0022] The transition component 5 includes a support cylinder 6 fixedly sleeved on the outer wall of the pipe body 1. The top of the support cylinder 6 is open. A circular filter plate 7 is fixedly sleeved at a position on the outer wall of the pipe body 1 inside the support cylinder 6. The outer wall of the circular filter plate 7 is fixedly connected to the inner wall of the support cylinder 6. The top of the circular filter plate 7 is flush with the top of the support cylinder 6. An elevating cylinder 4 that is vertically slidably arranged is sleeved at a position on the outer wall of the pipe body 1 above the support cylinder 6. The bottom of the elevating cylinder 4 is open. A plurality of connecting pipes 10 that are circumferentially and uniformly distributed are arranged at the bottom of the support cylinder 6 and are communicated with its inner cavity. The lower ports of the connecting pipes 10 extend downward to below the avoidance groove 23 and are communicated with the inner cavity of the pipe body 1. A rotating circular plate 15 that is rotationally and sealingly connected to the inner wall of the pipe body 1 is coaxially provided at the top of the fixed circular plate 14. The bottom of the rotating circular plate 15 is in frictional contact with the fixed circular plate 14. A plurality of liquid leakage holes 17 that vertically penetrate are circumferentially and uniformly distributed at the top of the rotating circular plate 15. A plurality of arc-shaped grooves 19 are circumferentially and uniformly distributed at a position on the inner wall of the pipe body 1 above the rotating circular plate 15. A plurality of liquid outlet grooves 22 are circumferentially and uniformly distributed at a position on the outer wall of the pipe body 1 inside the elevating cylinder 4. The plurality of liquid outlet grooves 22 are correspondingly communicated with the plurality of arc-shaped grooves 19. A plurality of fixed arc-shaped plates 18 are circumferentially and uniformly distributed at the top of the rotating circular plate 15. The ends of the plurality of fixed arc-shaped plates 18 correspondingly extend into the plurality of arc-shaped grooves 19 and are in frictional contact with the inner walls of the arc-shaped grooves 19. The top and bottom of the fixed arc-shaped plate 18 are slidably and sealingly connected to the top and bottom of the arc-shaped groove 19 respectively. When the rotating circular plate 15 rotates to make the liquid leakage holes 17 completely overlap with the liquid leakage grooves 16, the liquid outlet grooves 22 are completely closed by the fixed arc-shaped plates 18. When the rotating circular plate 15 rotates to make the liquid leakage holes 17 completely non-overlap with the liquid leakage grooves 16, the liquid outlet grooves 22 are opened.

[0023] An internal slot 38 is provided inside the fixed circular plate 14. Two driving motors 41 are fixedly provided at the bottom of the internal slot 38. The output end of one of the driving motors 41 extends downward through the fixed circular plate 14 into the rotating pipe 36 and is fixedly connected to the rotating column 37. The output end of the other driving motor 41 extends downward through the fixed circular plate 14 and is fixedly connected with a driving gear 42. A driven gear 39 that meshes with the driving gear 42 is fixedly sleeved on the outer wall of the rotating pipe 36. A servo motor 40 is fixedly provided at the top of the internal slot 38. The output end of the servo motor 40 extends upward through the fixed circular plate 14 and is fixedly connected to the rotating circular plate 15.

[0024] Three horizontally and fixedly arranged water pipes 25 are circumferentially and uniformly distributed on the outer wall of the support cylinder 6. One port of the water pipe 25 passes through the support cylinder 6 and the pipe body 1 and extends above the upper support circular plate 13 and is fixedly provided with a high-pressure nozzle 24 that is communicated. The water spraying ports of the three high-pressure nozzles 24 are all downward and are respectively located directly above the normally open slot 20, the first liquid passage groove 21 and the second liquid passage groove 27. A control valve 26 is provided on the water pipe 25. The other port of the water pipe 25 is communicated with a high-pressure water source.

[0025] Inside the pipe body 1, a fixedly arranged lower fixed cylinder 54 is coaxially provided at a position below the sliding circular plate 11. A vertically slidable lifting column 52 is provided through the top of the lower fixed cylinder 54. The lifting column 52 is fixedly connected to the sliding circular plate 11. A vertically arranged driving telescopic cylinder 53 is fixedly provided at the inner bottom of the lower fixed cylinder 54. The telescopic end of the driving telescopic cylinder 53 is fixedly connected to the lifting column 52.

[0026] The lower fixed cylinder 54 is fixedly connected to the inner wall of the pipe body 1 through a plurality of support bars 51.

[0027] A fixed ring 2 is fixedly sleeved on the outer wall of the pipe body 1 at a position above the lifting cylinder 4. Two vertically arranged lifting telescopic cylinders 3 are fixedly provided at the bottom of the fixed ring 2. The telescopic ends of the lifting telescopic cylinders 3 are fixedly connected to the lifting cylinder 4.

[0028] The working principle of this device is as follows: When filtering domestic sewage during the low water consumption period, the domestic sewage discharged from the building enters the pipe body 1. The domestic sewage in the pipe body 1 passes through the liquid leakage holes 17 and the liquid leakage grooves 16 and enters the area between the fixed circular plate 14 and the upper supporting circular plate 13. The domestic sewage above the upper supporting circular plate 13 sequentially passes through the normally open slots 20 on the upper supporting circular plate 13 and the lower supporting circular plate 12 and enters the fixed pipe 28. The domestic sewage in the fixed pipe 28 is filtered by the circular filter plate 29 below the normally open slot 20 and then enters the flushing system through the pipe body 1. When filtering domestic sewage during the high water consumption period, one of the driving motors 41 drives the rotating column 37 to rotate, thereby driving the sliding arc plate 33 in the lower supporting circular plate 12 to swing until the sliding arc plate 33 in the lower supporting circular plate 12 swings to make the control groove 34 completely overlap with the second liquid passing groove 27. The other driving motor 41 drives the driving gear 42, the driven gear 39 and the rotating pipe 36 to rotate, thereby driving the sliding arc plate 33 in the upper supporting circular plate 13 to swing until the sliding arc plate 33 in the upper supporting circular plate 13 swings to make the control groove 34 completely overlap with the first liquid passing groove 21. At this time, the first liquid passing groove 21 and the second liquid passing groove 27 are completely opened. The domestic sewage above the upper supporting circular plate 13 can respectively pass through the normally open slots 20, the first liquid passing groove 21 and the second liquid passing groove 27 on the upper supporting circular plate 13 and the lower supporting circular plate 12 and enter the three fixed pipes 28, and the three circular filter plates 29 filter the domestic sewage. Similarly, during the normal water consumption period, one of the first liquid passing groove 21 or the second liquid passing groove 27 can be opened, so that two circular filter plates 29 can be used to filter the domestic sewage at the same time. The filter area of this device has good adjustability, and can adjust the number of circular filter plates 29 used according to the discharge amount of domestic sewage, thereby realizing the function of adjusting the filter area. When the discharge amount of domestic sewage is small, only one circular filter plate 29 filters the domestic sewage, the filter area is small, the water passing diameter of the domestic sewage becomes smaller, the water flow speed becomes larger, and the water pressure increases, thereby accelerating the filtering speed of the domestic sewage and ensuring the normal water use of the flushing system. When the discharge amount of domestic sewage is large, three circular filter plates 29 filter the domestic sewage, the filter area is large, and the filtering rate of the domestic sewage is improved, effectively preventing drainage blockage; When cleaning the circular filter plate 29, the servo motor 40 drives the rotating circular plate 15 to rotate, and then drives the fixed arc plate 18 to rotate. When the rotating circular plate 15 rotates to the position where the liquid leakage hole 17 and the liquid leakage groove 16 do not overlap completely, the liquid outlet groove 22 is opened. At this time, the liquid leakage groove 16 is completely closed, and the domestic sewage in the pipe body 1 enters the lifting cylinder 4 through the liquid outlet groove 22. The domestic sewage in the lifting cylinder 4 enters the support cylinder 6 after being filtered by the annular filter plate 7. The filtered domestic sewage in the support cylinder 6 is discharged into the pipe body 1 through the connecting pipe 10 and enters the flushing system. Then, the telescopic cylinder 53 is driven to drive the lifting column 52, the sliding circular plate 11, the discharging box 44, the sealing plate 43, the driven pipe 46 and the cleaning brush 45 to move downward to the lowest position. At this time, the open end of the discharging box 44 is communicated with the waste discharging groove 55, and the cleaning brush 45 does not interfere with the fixed pipe 28. The control valve 26 is opened, and the external high-pressure water source enters the water passing pipe 25 and is sprayed out by the high-pressure spray head 24. The high-pressure water source sprayed out by the high-pressure spray head 24 can clean the impurities adsorbed on the inner walls of the normally open groove 20, the first liquid passing groove 21, the second liquid passing groove 27 and the fixed pipe 28. The cleaned sewage drops downward to the top of the sliding circular plate 11. At the same time, the built-in motor 48 drives the driving shaft 47, the driven pipe 46 and the cleaning brush 45 to rotate. The rotating cleaning brush 45 cleans the surface of the circular filter plate 29 with the cooperation of the water source. The cleaned sewage enters the discharging box 44 through the communicating groove 50 and is discharged to the outside of the pipe body 1 through the waste discharging groove 55, realizing the function of automatically cleaning the circular filter plate 29 without stopping the filtration of domestic sewage. The cleaning process is simple, improving the practicability of the device; When cleaning the annular filter plate 7, the lifting telescopic cylinder 3 drives the lifting cylinder 4 to slide upward, and the lifting cylinder 4 is separated from the support cylinder 6, and the annular filter plate 7 is exposed, so that the annular filter plate 7 can be directly cleaned. The cleaning process is simple, further improving the practicability of the device.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. A building water supply and drainage device, characterized in that: It comprises a pipe body (1), the inner wall of the pipe body (1) being provided with a filtering mechanism (8) for filtering domestic sewage, and the outer wall of the pipe body (1) being provided with a transition component (5) communicating with the inner cavity thereof; The filtering mechanism (8) comprises a fixed circular plate (14) coaxially fixed to the inner wall of the tube body (1), a plurality of vertically penetrating liquid leakage grooves (16) are evenly distributed on the top of the fixed circular plate (14) along the circumferential direction, an upper supporting circular plate (13) and a lower supporting circular plate (12) arranged in an upper and lower manner are coaxially fixed to the inner wall of the tube body (1) below the fixed circular plate (14), the top of the lower supporting circular plate (12) abuts against the bottom of the upper supporting circular plate (13), and the upper supporting circular plate (13) is provided to prevent leakage of liquid from the tube body (1) and the like. The tops of the circular plate (13) and the lower supporting circular plate (12) are uniformly distributed along the circumferential direction with vertically penetrating normally open grooves (20), first liquid-passing grooves (21) and second liquid-passing grooves (27); the interiors of the upper supporting circular plate (13) and the lower supporting circular plate (12) are both embedded with receiving grooves (32); the receiving grooves (32) in the upper supporting circular plate (13) are connected to the first liquid-passing grooves (21); the receiving grooves (32) in the lower supporting circular plate (12) are connected to the second liquid-passing grooves (27). The receiving grooves (32) are connected to each other, and a swingable sliding arc plate (33) is provided in each of the receiving grooves (32). The top and bottom of the sliding arc plate (33) are frictionally abutted against the top and bottom of the receiving groove (32), and the opposite side walls of the sliding arc plate (33) are frictionally abutted against the opposite inner walls of the receiving groove (32). A control groove (34) is vertically penetrated at the top of the sliding arc plate (33), and the diameter of the control groove (34) is the same as that of the first liquid-passing groove (21) or the first liquid-passing groove (21). The diameters of the two liquid channels (27) are the same. When the sliding arc plate (33) swings until the control groove (34) completely overlaps with the first liquid channel (21) or the second liquid channel (27), the first liquid channel (21) or the second liquid channel (27) is completely opened. When the sliding arc plate (33) swings until the control groove (34) completely does not overlap with the first liquid channel (21) or the second liquid channel (27), the first liquid channel (21) or the second liquid channel (27) is closed. The side walls of the sliding arc plate (33) are fixedly connected to a horizontally arranged connecting plate (35); the top of the connecting plate (35) in the upper supporting circular plate (13) is fixedly connected to a rotating tube (36) coaxially arranged with the upper supporting circular plate (13); the top end of the rotating tube (36) passes through the upper supporting circular plate (13) upward and is rotatably sealed and connected to the bottom of the fixed circular plate (14); the rotating tube (36) is rotatably sealed and connected to the upper supporting circular plate (13); the connecting tube (36) in the lower supporting circular plate (12) is connected to the upper supporting circular plate (13) in a rotating manner. A rotating column (37) coaxially arranged with the lower supporting circular plate (12) is fixedly connected to the top of the plate (35); the top end of the rotating column (37) passes through the lower supporting circular plate (12), the upper supporting circular plate (13) and the connecting plate (35) in the upper supporting circular plate (13) in sequence and extends into the rotating tube (36); the lower supporting circular plate (12), the upper supporting circular plate (13), the connecting plate (35) in the upper supporting circular plate (13) and the rotating tube (36) are all rotatably connected to the rotating column (37). The bottom of the lower supporting circular plate (12) is evenly distributed along the circumference with three fixed tubes (28) arranged vertically and fixedly. The three fixed tubes (28) are connected to the normally open groove (20), the first liquid-passing groove (21) and the second liquid-passing groove (27) on the lower supporting circular plate (12) respectively. A sliding circular plate (11) is coaxially provided in the interior of the tube body (1) below the fixed tube (28) and is vertically slidably sealed to the inner wall thereof. The top of the sliding circular plate (11) is provided with an annular positioning groove (30) at a position below the fixed tube (28). The top of the sliding circular plate (11) is provided with a circular groove (31) vertically penetrating the position within the annular positioning groove (30), the inner wall of the circular groove (31) is coaxially fixedly connected with a circular filter plate (29), the top of the circular filter plate (29) is flush with the top of the sliding circular plate (11), when the sliding circular plate (11) rises to the highest position, the lower end of the fixed pipe (28) is inserted into the annular positioning groove (30), and the sliding circular plate (11) is provided with a cleaning component (9) for cleaning the circular filter plate (29).

2. The building water supply and drainage device according to claim 1, characterized in that: The cleaning assembly (9) comprises an upper fixed cylinder (49) coaxially fixed to the bottom of the lower supporting circular plate (12), a built-in motor (48) being fixedly arranged in the upper fixed cylinder (49), an output end of the built-in motor (48) passing downward through the upper fixed cylinder (49) and being fixedly connected to a driving shaft (47), a driven tube (46) being coaxially arranged to rotate is arranged on the top of the sliding circular plate (11), a bottom end of the driving shaft (47) extending downward into the driven tube (46) and being connected to the driven tube (46) is vertically slidably connected, the outer wall of the driven tube (46) is uniformly distributed along the circumferential direction with a plurality of cleaning brushes (45) that are in frictional contact with the top of the sliding circular plate (11), the top of the sliding circular plate (11) is uniformly distributed along the circumferential direction with a plurality of vertically penetrating connecting grooves (50), the connecting grooves (50) and the circular filter plate (29) are alternately arranged along the circumferential direction, the bottom of the sliding circular plate (11) is uniformly distributed along the circumferential direction with a plurality of fixedly arranged discharge boxes (44), and the plurality of the discharge boxes (44) are uniformly distributed along the circumferential direction. ) are connected to a plurality of connecting grooves (50), the inner wall of the tube body (1) is located below the sliding circular plate (11) and is evenly distributed along the circumferential direction with a plurality of avoidance grooves (23), the outer wall of the tube body (1) is evenly distributed along the circumferential direction with a plurality of waste discharge grooves (55), and a plurality of the waste discharge grooves (55) are connected to a plurality of avoidance grooves (23), one end of the discharge box (44) is open, and the open end of the discharge box (44) extends into the avoidance groove (23) and is connected to the avoidance groove ( The inner wall of the discharge box (44) is frictionally opposed to each other, and a vertically arranged sealing plate (43) is fixedly provided at the bottom of the discharge box (44). The opposite side wall of the sealing plate (43) is slidably and sealingly connected with the opposite inner wall of the avoidance groove (23). When the sliding circular plate (11) is lowered to the lowest position, the open end of the discharge box (44) is connected to the waste discharge groove (55). When the sliding circular plate (11) is raised to the highest position, the sealing plate (43) completely closes the waste discharge groove (55).

3. The building water supply and drainage device according to claim 2, characterized in that: The transition assembly (5) comprises a support cylinder (6) fixedly mounted on the outer wall of the tube body (1), the top of the support cylinder (6) being open, an annular filter plate (7) being fixedly mounted on the outer wall of the tube body (1) located inside the support cylinder (6), the outer wall of the annular filter plate (7) being fixedly connected to the inner wall of the support cylinder (6), the top of the annular filter plate (7) being flush with the top of the support cylinder (6), a lifting cylinder (4) being mounted on the outer wall of the tube body (1) located above the support cylinder (6) and being vertically slidably mounted, the bottom of the lifting cylinder (4) being open, a plurality of connecting pipes (10) being evenly distributed along the circumferential direction on the bottom of the support cylinder (6) and being connected to the inner cavity thereof, the lower end of the connecting pipe (10) extending downward to below the avoidance groove (23) and being connected to the inner cavity of the tube body (1), A rotating circular plate (15) is coaxially disposed on the top of the fixed circular plate (14) and is rotatably sealed with the inner wall of the tube body (1). The bottom of the rotating circular plate (15) is in friction with the fixed circular plate (14). The top of the rotating circular plate (15) is evenly distributed along the circumference with a plurality of vertically penetrating leakage holes (17). The inner wall of the tube body (1) is evenly distributed along the circumference at a position above the rotating circular plate (15). The outer wall of the tube body (1) is evenly distributed along the circumference at a position inside the lifting cylinder (4). A plurality of liquid outlet grooves (22) are evenly distributed along the circumference. A plurality of the liquid outlet grooves (22) are correspondingly connected to a plurality of the arc grooves (19). The rotating circular plate (1 5) A plurality of fixed arc plates (18) are evenly distributed along the circumferential direction at the top, and the ends of the plurality of fixed arc plates (18) extend into the plurality of arc grooves (19) and rub against the inner walls of the arc grooves (19). The top and bottom of the fixed arc plates (18) are correspondingly connected to the top and bottom of the arc grooves (19) in a sliding and sealing manner. When the rotating circular plate (15) rotates until the leakage hole (17) and the leakage groove (16) completely overlap, the liquid outlet groove (22) is completely closed by the fixed arc plates (18). When the rotating circular plate (15) rotates until the leakage hole (17) and the leakage groove (16) completely do not overlap, the liquid outlet groove (22) is opened.

4. The building water supply and drainage device according to claim 3, characterized in that: A built-in groove (38) is provided inside the fixed circular plate (14), and two driving motors (41) are fixedly provided at the bottom of the built-in groove (38), wherein the output end of one of the driving motors (41) passes downward through the fixed circular plate (14), extends into the rotating tube (36), and is fixedly connected to the rotating column (37), and the output end of the other driving motor (41) passes downward through the fixed circular plate (14) and is fixedly connected to a driving gear (42), and a driven gear (39) meshing with the driving gear (42) is fixedly sleeved on the outer wall of the rotating tube (36), and a servo motor (40) is fixedly provided at the top of the built-in groove (38), and the output end of the servo motor (40) passes upward through the fixed circular plate (14) and is fixedly connected to the rotating circular plate (15).

5. The building water supply and drainage device according to claim 3, characterized in that: The outer wall of the support tube (6) is evenly distributed along the circumferential direction with three horizontally fixed water pipes (25), one of the ports of the water pipe (25) passes through the support tube (6) and the tube body (1) to extend above the upper support circular plate (13) and is fixedly provided with a high-pressure nozzle (24) arranged in communication therewith, the water spraying ports of the three high-pressure nozzles (24) are all arranged downward and are respectively located directly above the normally open groove (20), the first liquid-passing groove (21) and the second liquid-passing groove (27), the water pipe (25) is provided with a control valve (26), and the other port of the water pipe (25) is connected to a high-pressure water source.

6. The building water supply and drainage device according to claim 1, characterized in that: A fixed lower fixed cylinder (54) is coaxially arranged in a position below the sliding circular plate (11) inside the tube body (1); a lifting column (52) arranged to slide vertically is penetrated through the top of the lower fixed cylinder (54); the lifting column (52) is fixedly connected to the sliding circular plate (11); a vertically arranged driving telescopic cylinder (53) is fixedly arranged at the inner bottom of the lower fixed cylinder (54); and the telescopic end of the driving telescopic cylinder (53) is fixedly connected to the lifting column (52).

7. The building water supply and drainage device according to claim 6, characterized in that: The lower fixed cylinder (54) is fixedly connected to the inner wall of the tube body (1) via a plurality of support bars (51).

8. The building water supply and drainage device according to claim 3, characterized in that: The outer wall of the tube body (1) is fixedly sleeved with a fixed ring (2) at a position above the lifting cylinder (4); two vertically arranged lifting and telescopic cylinders (3) are fixedly disposed at the bottom of the fixed ring (2); and the telescopic ends of the lifting and telescopic cylinders (3) are fixedly connected to the lifting cylinder (4).

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