Filtering assembly of domestic sewage treatment equipment

Abstract

The utility model relates to the technical field of filter assemblies, in particular to a domestic sewage treatment equipment filter assembly which comprises a tank body, a top opening of the tank body is connected with a top cover, an annular frame is installed in the tank body, a second connecting sleeve is coaxially arranged in the annular frame, and the second connecting sleeve is connected with the annular frame through a second filter screen. A water inlet pipe is installed on the side face of the tank body and located below the second filter screen, and a drainage pipe is installed on one side of the top of the tank body and located above the second filter screen. A driving motor can synchronously drive a first rotating shaft and a second rotating shaft to rotate under the action of a first bevel gear and a second bevel gear, so that a first scraping plate rotates along the surface of a first filter screen, a second scraping plate rotates along the surface of a second filter screen, and the surfaces of the first filter screen and the second filter screen can be continuously cleaned during filtering; the first filter screen and the second filter screen are prevented from being blocked and the filtering effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter components, in particular to a filter component of domestic sewage treatment equipment. Background Art

[0002] Domestic sewage is wastewater discharged from residents' daily lives. There are a lot of solid impurities in domestic sewage. When treating sewage, it is generally necessary to filter the sewage through a filtering component.

[0003] When the existing sewage treatment filter assembly is used, the sewage is transported to the filter assembly. When the sewage flows through the filter assembly, the internal impurities will be filtered by the filter assembly. However, since the filter assembly cannot be cleaned at any time during the filtration, the filter assembly is easily blocked by impurities in the sewage, resulting in poor filtration effect. After the filtration is completed, the existing filter assembly generally needs to be dismantled and cleaned by the staff, which is troublesome to clean. To this end, we propose a filter assembly for domestic sewage treatment equipment. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a filtering component for domestic sewage treatment equipment.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a filtering assembly of a domestic sewage treatment equipment is designed, including a tank body, the top opening of the tank body is connected to a top cover, an annular frame is installed inside the tank body, a second connecting sleeve is coaxially arranged inside the annular frame, the second connecting sleeve and the annular frame are connected through a second filter screen, a water inlet pipe is installed on the side of the tank body, the water inlet pipe is located below the second filter screen, a drain pipe is installed on one side of the top of the tank body, and the drain pipe is located above the second filter screen;

[0006] A first rotating shaft is coaxially arranged above the second connecting sleeve, the bottom of the first rotating shaft penetrates the second connecting sleeve and is rotatably connected to the second connecting sleeve, the top of the first rotating shaft is connected to a driving motor, the driving motor is fixed in the first sealing box, and the top of the first sealing box is fixed to the bottom of the top cover;

[0007] A plurality of pairs of first strip connecting plates are provided on both upper and lower sides of the second filter screen, one end of each of the first strip connecting plates is fixed to the side of the first rotating shaft, and a second scraper is fixedly installed on one side of each of the first strip connecting plates, and the side of the second scraper is gap-matched with the side of the second filter screen;

[0008] A first connecting sleeve is coaxially arranged at one end of the drain pipe near the tank body, and the outer surface of the first connecting sleeve is connected to the inner wall of the drain pipe through a first filter screen. A second rotating shaft is coaxially arranged at one side of the first connecting sleeve, and one end of the second rotating shaft passes through the first connecting sleeve, and a plurality of pairs of second strip connecting plates are installed on both sides of the first filter screen, and one end of the second strip connecting plates is fixed on the side of the second rotating shaft, and a first scraper is installed on the side of each second strip connecting plate, and the side of the first scraper is gap-matched with the side of the first filter screen;

[0009] A second sealed box is fixedly installed inside the tank body through a connecting plate, a first rotating shaft penetrates the second sealed box and is rotatably connected to the second sealed box, and one end of the second rotating shaft extends into the second sealed box and is rotatably connected to the second sealed box, a first bevel gear is installed at one end of the second rotating shaft located inside the second sealed box, a second bevel gear is installed on the side of the first rotating shaft, and the second bevel gear is meshed with the first bevel gear;

[0010] An annular tube is installed at the bottom of the top cover, and two groups of nozzles are installed equidistantly at the bottom of the annular tube. A delivery pump is installed on the top of the top cover. The liquid inlet of the delivery pump is connected to the external water pool through the liquid inlet pipe, and the liquid outlet of the delivery pump is connected to an infusion tube, and the other end of the infusion tube is connected to the annular tube.

[0011] Preferably, one end of each first strip-shaped connecting plate is slidably connected to an annular track fixed on the inner surface of the annular frame through a slider;

[0012] One end of each second strip-shaped connecting plate is slidably connected to an annular track fixed on the inner wall of the drain pipe through a sliding block.

[0013] Preferably, the pore size of the first filter is smaller than the pore size of the second filter.

[0014] Preferably, the nozzles of one group of nozzles are directed toward the center of the second filter screen, and the nozzles of the other group of nozzles are directed toward the side wall of the tank body.

[0015] Preferably, the spray head is located above the drain pipe.

[0016] Preferably, a drain pipe is installed at the bottom of the tank body, and a valve is installed on the drain pipe.

[0017] Preferably, a plurality of legs are installed on the bottom edge of the tank body, and the bottom ends of the legs extend to below the sewage pipe.

[0018] Preferably, a control cabinet is installed on one side of the tank body, and a controller in the control cabinet is connected to the delivery pump and the drive motor respectively through wires.

[0019] The design scheme proposed by the utility model has the following beneficial effects during application:

[0020] 1. The driving motor can synchronously drive the first rotating shaft and the second rotating shaft to rotate under the action of the first bevel gear and the second bevel gear, so that the first scraper rotates along the surface of the first filter screen, and the second scraper rotates along the surface of the second filter screen. The surfaces of the first filter screen and the second filter screen can be continuously cleaned during filtering to prevent the first filter screen and the second filter screen from being blocked, thereby improving the filtering effect.

[0021] 2. The water can be transported to the annular tube through the liquid inlet pipe and the liquid infusion pipe by the delivery pump, and sprayed to the inner wall of the tank body and the surface of the first filter and the second filter respectively through two groups of nozzles, so as to clean the first filter and the second filter, and the cleaning is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the tank of the utility model;

[0024] Figure 3 It is a schematic diagram of the structure of the first rotating shaft and the second rotating shaft of the utility model;

[0025] Figure 4 It is a side sectional view of the structure of the top cover of the utility model;

[0026] Figure 5 This is a schematic diagram of the annular tube and nozzle structure of the utility model.

[0027] In the figure: 1, support leg; 2, water inlet pipe; 3, tank body; 4, top cover; 5, infusion pipe; 6, liquid inlet pipe; 7, delivery pump; 8, first sealing box; 9, second sealing box; 10, first rotating shaft; 11, drain pipe; 12, sewage pipe; 13, valve; 14, driving motor; 15, first scraper; 16, first connecting sleeve; 17, first filter screen; 18, annular frame; 19, first strip connecting plate; 20, second scraper; 21, second filter screen; 22, second rotating shaft; 23, second strip connecting plate; 24, first bevel gear; 25, second bevel gear; 26, annular pipe; 27, nozzle; 28, second connecting sleeve; 29, control cabinet. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Reference Figure 1-Figure 5A filtering component of a domestic sewage treatment equipment includes a tank body 3, a control cabinet 29 is installed on one side of the tank body 3, and a controller is arranged inside the control cabinet 29. The controller is one of a control mainboard, a host or a PLC logic controller.

[0030] like Figure 1 As shown, the top opening of the tank body 3 is connected to a top cover 4. In actual use, the top cover 4 is installed at the top opening of the tank body 3 to seal the tank body 3 so that the filtered sewage will not leak from the top of the tank body 3.

[0031] like Figure 2 As shown, an annular frame 18 is installed inside the tank body 3, and a second connecting sleeve 28 is coaxially provided inside the annular frame 18. The second connecting sleeve 28 is connected to the annular frame 18 through a second filter screen 21. A water inlet pipe 2 is installed on the side of the tank body 3, and the water inlet pipe 2 is located below the second filter screen 21. A drain pipe 11 is installed on one side of the top of the tank body 3, and the drain pipe 11 is located above the second filter screen 21. In actual use, domestic sewage is transported to the tank body 3 through the water inlet pipe 2. As the amount of sewage inside the tank body 3 increases, the sewage will contact the second filter screen 21, and large particles of impurities in the sewage will be filtered out by the second filter screen 21. The remaining small particles of impurities and water will pass through the second filter screen 21 to complete the preliminary filtration of the sewage. When the filtered sewage liquid level rises to the drain pipe 11, it will be discharged from the tank body 3 along the drain pipe 11.

[0032] like Figure 1 and Figure 3 As shown, a sewage pipe 12 is installed at the bottom of the tank body 3, and a valve 13 is installed on the sewage pipe 12. The opening and closing of the sewage pipe 12 can be controlled by the valve 13. After filtering for a preset time, the staff can stop transporting sewage into the tank body 3 and open the valve 13. The stains filtered by the second filter 21 will be discharged from the sewage pipe 12.

[0033] like Figure 2 and Figure 3 As shown, a first rotating shaft 10 is coaxially provided above the second connecting sleeve 28, the bottom of the first rotating shaft 10 passes through the second connecting sleeve 28 and is rotatably connected to the second connecting sleeve 28, the first rotating shaft 10 is rotatably connected to the second connecting sleeve 28 through a bearing, and a driving motor 14 is connected to the top of the first rotating shaft 10, the driving motor 14 is fixed in the first sealing box 8, and the top of the first sealing box 8 is fixed to the bottom of the top cover 4, the driving motor 14 is connected to the controller through a wire, and in actual use, the first rotating shaft 10 can be controlled to rotate relative to the second connecting sleeve 28 by the driving motor 14.

[0034] like Figure 2 and Figure 3As shown, a plurality of pairs of first strip connecting plates 19 are provided on the upper and lower sides of the second filter screen 21, one end of the first strip connecting plates 19 are fixed to the side of the first rotating shaft 10, and a second scraper 20 is fixedly installed on one side of each first strip connecting plate 19, and the side of the second scraper 20 is gap-matched with the side of the second filter screen 21. When the first rotating shaft 10 rotates, it will drive the first strip connecting plates 19 and the second scraper 20 to rotate. In this way, during filtering, the second scraper 20 will continuously rotate on the surface of the second filter screen 21 to scrape off impurities blocking the second filter screen 21, thereby preventing the second filter screen 21 from being blocked during use.

[0035] It should be noted that one end of each first strip connecting plate 19 is slidably connected to the annular track fixed on the inner wall of the annular frame 18 through a slider, so that in actual use, the second filter screen 21 can be supported by the first strip connecting plate 19 to prevent the second filter screen 21 from being deformed by the impact of water flow, so as not to affect the cleaning effect of the second scraper 20.

[0036] like Figure 2 As shown, a first connecting sleeve 16 is coaxially provided at one end of the drain pipe 11 near the tank body 3, and the outer surface of the first connecting sleeve 16 is connected to the inner wall of the drain pipe 11 through a first filter screen 17. The aperture of the first filter screen 17 is smaller than the aperture of the second filter screen 21. In actual use, when the sewage level after filtering by the second filter screen 21 rises to the drain pipe 11, the sewage after preliminary filtration will be discharged from the tank body 3 along the drain pipe 11. During the discharge process, the sewage after preliminary filtration will contact with the first filter screen 17, and small particles of impurities in the sewage will be filtered through the first filter screen 17, and the filtration is sufficient.

[0037] like Figure 2 and Figure 3 As shown, a second rotating shaft 22 is coaxially provided on one side of the first connecting sleeve 16, one end of the second rotating shaft 22 passes through the first connecting sleeve 16 and is rotatably connected to the first connecting sleeve 16, the second rotating shaft 22 is connected to the first connecting sleeve 16 through a bearing, a second sealing box 9 is fixedly installed inside the tank body 3 through a connecting plate, the first rotating shaft 10 passes through the second sealing box 9 and is rotatably connected to the second sealing box 9, and one end of the second rotating shaft 22 extends into the second sealing box 9 and is rotatably connected to the second sealing box 9, a first bevel gear 24 is installed at one end of the second rotating shaft 22 located inside the second sealing box 9, a second bevel gear 25 is installed on the side of the first rotating shaft 10, and the second bevel gear 25 is meshed with the first bevel gear 24. In actual use, when the driving motor 14 drives the first rotating shaft 10 to rotate, under the action of the first bevel gear 24 and the second bevel gear 25, the second rotating shaft 22 will synchronously follow the first rotating shaft 10 to rotate.

[0038] like Figure 2 and Figure 3As shown, a plurality of pairs of second strip connecting plates 23 are installed on both sides of the first filter screen 17, one end of each second strip connecting plate 23 is fixed on the side of the second rotating shaft 22, and a first scraper 15 is installed on the side of each second strip connecting plate 23, and the side of the first scraper 15 is matched with the side clearance of the first filter screen 17. In actual use, the second rotating shaft 22 will drive the first scraper 15 to rotate along the surface of the first filter screen 17 to clean up the impurities blocking the surface of the first filter screen 17 to prevent the first filter screen 17 from being blocked during the filtering process.

[0039] It should be noted that one end of each second strip connecting plate 23 is slidably connected to the annular track fixed on the inner wall of the drain pipe 11 through a slider, so that in actual use, the first filter screen 17 can be supported by the second strip connecting plate 23 to prevent the first filter screen 17 from being deformed by the impact of water flow, so as not to affect the cleaning effect of the first scraper 15.

[0040] like Figure 1 and Figure 4 As shown, an annular tube 26 is installed at the bottom of the top cover 4, and two groups of nozzles 27 are equidistantly installed at the bottom of the annular tube 26, wherein the nozzles of one group of nozzles 27 are directed toward the center of the second filter screen 21, and the nozzles of the other group of nozzles 27 are directed toward the side wall of the tank body 3. A delivery pump 7 is installed on the top of the top cover 4, and the delivery pump 7 is connected to the controller through a wire. The liquid inlet of the delivery pump 7 is connected to the external water pool through the liquid inlet pipe 6, and the liquid outlet of the delivery pump 7 is connected to the infusion pipe 5, and the other end of the infusion pipe 5 is connected to the annular tube 26. After the filtration is completed, the staff controls the delivery pump 7 to work through the controller, and the delivery pump 7 delivers the water in the external water pool to the annular tube 26 through the liquid inlet pipe 6 and the liquid infusion pipe 5, and finally sprays it to the side wall of the tank body 3 and the surface of the second filter screen 21 through the nozzle 27, and the water sprayed to the inner wall flushes the first filter screen 17 along the inner wall of the tank body 3, so that the first filter screen 17 and the second filter screen 21 can be cleaned, and the cleaning is convenient.

[0041] Specifically, when the utility model is in use, sewage is transported into the tank body 3 through the water inlet pipe 2, and the liquid level of the sewage rises with the transportation of the water inlet pipe 2. When the liquid level of the sewage reaches the second filter screen 21, large particles of impurities in the sewage are filtered out by the second filter screen 21, and the remaining small particles of stains and water pass through the second filter screen 21. After that, the liquid level of the sewage after preliminary filtration continues to rise. When the liquid level reaches the end of the drain pipe 11, the sewage will be discharged from the tank body 3 along the drain pipe 11, and in the process of discharge, the first filter screen 17 will filter the small particles of impurities in the sewage after preliminary filtration. The material is filtered twice to filter out small particles of impurities. During the filtering, the staff controls the driving motor 14 to work through the controller. The driving motor 14 drives the first rotating shaft 10 to rotate, and synchronously drives the second rotating shaft 22 to rotate under the action of the first bevel gear 24 and the second bevel gear 25. The first rotating shaft 10 drives the second scraper 20 to rotate along the surface of the second filter screen 21, and the second rotating shaft 22 drives the first scraper 15 to rotate along the surface of the first filter screen 17, so as to scrape off the impurities adhered to the second filter screen 21 and the first filter screen 17 with the water flow during the filtration process. Clean it to avoid the first filter screen 17 and the second filter screen 21 being blocked during the filtering process. After the filtering is completed, the staff stops delivering sewage to the tank body 3. After that, the staff opens the valve 13 to discharge the stains in the tank body 3 along the sewage pipe 12. While discharging sewage, the controller controls the delivery pump 7 to work. The delivery pump 7 delivers the water in the pool through the liquid inlet pipe 6 and the liquid delivery pipe 5 to the annular pipe 26, and sprays it out from the nozzle 27. A group of nozzles 27 spray water onto the inner wall of the tank body 3. While the water flows on the inner wall of the tank body 3, the first filter screen 17 The impurities adhered to the first scraper 15 are washed away, and the impurities follow the water flow to the second filter screen 21, and pass through the second filter screen 21 to flow to the sewage pipe 12. Another group of nozzles 27 sprays water to the first sealed box 8, the second sealed box 9, the first rotating shaft 10, the second rotating shaft 22 and the second filter screen 21, and the impurities adhered to the surfaces of the first sealed box 8, the second sealed box 9, the first rotating shaft 10 and the second rotating shaft 22 are washed to the second filter screen 21, and flow to the sewage pipe 12 together with the water flow that flushes the second filter screen 21, and are finally discharged through the sewage pipe 12.

[0042] Furthermore, Figure 1 As shown, the nozzle 27 is located above the drain pipe 11. In actual use, the nozzle 27 will not contact the sewage in the tank body 3, so the sewage in the tank body 3 will not leak from the nozzle 27, the annular pipe 26, the liquid infusion pipe 5 and the liquid inlet pipe 6.

[0043] Furthermore, Figure 1As shown, a plurality of legs 1 are installed on the bottom edge of the tank body 3, and the bottom ends of the legs 1 extend to the bottom of the sewage pipe 12. The tank body 3 can be supported by the legs 1, and a certain distance is made between the bottom of the sewage pipe 12 and the ground, so that it is convenient to connect the container for collecting stains to the sewage pipe 12 to collect the stains discharged from the sewage pipe 12.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A filter assembly for domestic sewage treatment equipment, comprising a tank body (3), characterized in that: The top opening of the tank body (3) is connected to a top cover (4); an annular frame (18) is installed inside the tank body (3); a second connecting sleeve (28) is coaxially arranged inside the annular frame (18); the second connecting sleeve (28) and the annular frame (18) are connected via a second filter screen (21); a water inlet pipe (2) is installed on the side of the tank body (3); the water inlet pipe (2) is located below the second filter screen (21); a drainage pipe (11) is installed on one side of the top of the tank body (3); the drainage pipe (11) is located above the second filter screen (21); A first rotating shaft (10) is coaxially arranged above the second connecting sleeve (28), the bottom of the first rotating shaft (10) passes through the second connecting sleeve (28) and is rotatably connected to the second connecting sleeve (28), the top of the first rotating shaft (10) is connected to a driving motor (14), the driving motor (14) is fixed in the first sealing box (8), and the top of the first sealing box (8) is fixed to the bottom of the top cover (4); A plurality of pairs of first strip connecting plates (19) are provided on both upper and lower sides of the second filter screen (21), one end of each of the first strip connecting plates (19) is fixed to the side of the first rotating shaft (10), and a second scraper (20) is fixedly mounted on one side of each of the first strip connecting plates (19), and the side of the second scraper (20) is gap-matched with the side of the second filter screen (21); A first connecting sleeve (16) is coaxially arranged at one end of the drain pipe (11) near the tank body (3); the outer surface of the first connecting sleeve (16) is connected to the inner wall of the drain pipe (11) via a first filter screen (17); a second rotating shaft (22) is coaxially arranged on one side of the first connecting sleeve (16); one end of the second rotating shaft (22) passes through the first connecting sleeve (16); and a plurality of pairs of second strip connecting plates (23) are installed on both sides of the first filter screen (17); one end of the second strip connecting plates (23) is fixed on the side of the second rotating shaft (22); and a first scraper (15) is installed on the side of each second strip connecting plate (23); and the side of the first scraper (15) is clearance-matched with the side of the first filter screen (17); A second sealing box (9) is fixedly installed inside the tank body (3) via a connecting plate, a first rotating shaft (10) penetrates the second sealing box (9) and is rotatably connected to the second sealing box (9), and one end of the second rotating shaft (22) extends into the second sealing box (9) and is rotatably connected to the second sealing box (9), a first bevel gear (24) is installed at one end of the second rotating shaft (22) located inside the second sealing box (9), a second bevel gear (25) is installed on the side of the first rotating shaft (10), and the second bevel gear (25) is meshed with the first bevel gear (24); An annular tube (26) is installed at the bottom of the top cover (4), two groups of nozzles (27) are installed at equal intervals at the bottom of the annular tube (26), a delivery pump (7) is installed at the top of the top cover (4), a liquid inlet of the delivery pump (7) is connected to an external water pool through a liquid inlet pipe (6), a liquid delivery pipe (5) is connected to the liquid outlet of the delivery pump (7), and the other end of the liquid delivery pipe (5) is connected to the annular tube (26).

2. A filter assembly for domestic sewage treatment equipment according to claim 1, characterized in that: One end of each first strip-shaped connecting plate (19) is slidably connected to an annular track fixed on the inner surface of the annular frame (18) via a slider; One end of each second strip-shaped connecting plate (23) is slidably connected to an annular track fixed on the inner wall of the drain pipe (11) via a sliding block.

3. A filter assembly for domestic sewage treatment equipment according to claim 1, characterized in that: The pore size of the first filter screen (17) is smaller than the pore size of the second filter screen (21).

4. A filter assembly for domestic sewage treatment equipment according to claim 1, characterized in that: The nozzles of one group of nozzles (27) are oriented toward the center of the second filter screen (21), and the nozzles of the other group of nozzles (27) are oriented toward the side wall of the tank body (3).

5. A filter assembly for domestic sewage treatment equipment according to claim 4, characterized in that: The spray head (27) is located above the drain pipe (11).

6. A filter assembly for domestic sewage treatment equipment according to claim 1, characterized in that: A sewage discharge pipe (12) is installed at the bottom of the tank body (3), and a valve (13) is installed on the sewage discharge pipe (12).

7. A filter assembly for domestic sewage treatment equipment according to claim 6, characterized in that: A plurality of legs (1) are installed on the bottom edge of the tank body (3), and the bottom ends of the legs (1) extend to the bottom of the sewage discharge pipe (12).

8. A filter assembly for domestic sewage treatment equipment according to claim 1, characterized in that: A control cabinet (29) is installed on one side of the tank body (3), and a controller in the control cabinet (29) is respectively connected to the delivery pump (7) and the drive motor (14) through wires.

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