Front filtering assembly for sewage pump

Abstract

The utility model discloses a front filter assembly for a sewage pump, which belongs to the technical field of filter assemblies and comprises a shell, a mounting seat is mounted at the top of the shell, a threaded sleeve is connected to the top of the mounting seat, a connecting part is in threaded connection with the outer side of the threaded sleeve, and a placing box is connected to the top of the connecting part. A first water inlet pipe is installed on one side of the connecting part, a water inlet is formed in the position, corresponding to the first water inlet pipe, of the threaded sleeve, and a base is installed on the inner side of the shell. According to the utility model, the cleaning assembly and the backwashing assembly are arranged, and the designed sleeve, the rotating blade, the disc and the scraper blade are matched for use, so that large particulate matters or impurities on the outer wall of the filter screen are automatically cleaned, a blow-down valve on a blow-down pipe is opened, sewage flows out of the blow-down pipe, and the effect of backwashing the inner wall of the filter screen is realized; fine particles left on the filter screen are cleaned, so that the filtering effect of the filter screen is improved, and the service life of the filter screen is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of filter components, and in particular relates to a pre-filter component for a sewage pump. Background Art

[0002] The pre-filter assembly is also called the pre-filter. The pre-filter is an important water treatment equipment used for household and industrial purposes. Its main function is to remove impurities and particulate matter in the water before the water enters the pipe system to protect the pipes, water pumps and other water treatment equipment. In the water treatment process, components such as the filter head, filter screen, pressure regulating valve and check valve play a vital role in the filtration accuracy and performance of the pre-filter.

[0003] The existing pre-filter assembly of the sewage pump usually needs to manually clean the filter during use, and the cleaning and maintenance efficiency is low. It is inconvenient for the operator to use and the filter assembly cannot be backwashed during the cleaning process, which makes the filtering effect of the filter and the cleaning of fine particles remaining on the filter not thorough enough, thereby reducing the service life of the filter. Secondly, the pre-filter assembly of the existing sewage pump is troublesome to disassemble the filter, and the operator cannot quickly disassemble the filter, which is inconvenient to replace the filter. Therefore, there is room for improvement. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the filter screen cannot be quickly cleaned and disassembled in the prior art, and to propose a pre-filter assembly for a sewage pump.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pre-filter assembly for a sewage pump comprises an outer shell, a mounting seat is installed on the top of the outer shell, a threaded sleeve is connected to the top of the mounting seat, a connecting part is threadedly connected to the outer side of the threaded sleeve, a placement box is connected to the top of the connecting part, a first water inlet pipe is installed on one side of the connecting part, and a water inlet is opened on the threaded sleeve corresponding to the position of the first water inlet pipe, a base is installed on the inner side of the outer shell, disassembly assemblies are installed on both sides of the base, a filter screen is installed on the top of the base, a cleaning assembly is installed on the outer side of the filter screen, and a backwashing assembly is arranged on the inner side of the filter screen.

[0007] As a further description of the above technical solution:

[0008] The disassembly assembly includes a first knob, a rotating rod is installed on one side of the first knob, a compression spring is sleeved on the outer side of the rotating rod, one end of the compression spring is connected to a baffle, the other end of the compression spring is connected to a protective box, one side of the protective box is connected to the outer wall of one side of the shell, a clamping block is installed on the other end of the rotating rod, and clamping slots are opened on both sides of the base, and one side of the clamping block is clamped to the inner side of the clamping slot.

[0009] As a further description of the above technical solution:

[0010] The backwash assembly includes a second knob, a rotating shaft is installed at the bottom end of the second knob, one side of the rotating shaft is connected to a second water inlet pipe, the other end of the second water inlet pipe is located on one side of the placement box, the outside of the rotating shaft is connected to multiple water spray pipes, one end of the water spray pipe is located on the inner side of the filter.

[0011] As a further description of the above technical solution:

[0012] The cleaning assembly includes a sleeve, which is installed on the outside of the rotating shaft. A plurality of rotating blades are installed on the outside of the sleeve. A disc is installed on the bottom end of the sleeve. A plurality of scrapers are installed on one side of the bottom of the disc. The inner side of the scraper is in contact with the outer side of the filter.

[0013] As a further description of the above technical solution:

[0014] The bottom of the shell is connected with a water outlet pipe, and the top of the placement box is equipped with a pressure gauge.

[0015] As a further description of the above technical solution:

[0016] Sealing rings are installed on both sides of the slot, a sewage pipe is installed on one side of the filter screen, and a sewage valve is installed on the top of the sewage pipe.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0018] 1. In the utility model, by arranging a cleaning component and a backwashing component, and by using the designed sleeve, rotating blades, disc and scraper in coordination, the large particles or impurities on the outer wall of the filter can be automatically cleaned, thereby eliminating the tediousness of manual cleaning and facilitating the use of the operator. The water from the first water outlet pipe is filtered through the outer side of the filter and then discharged through the water outlet. When the filter needs to be backwashed, the first water outlet pipe is closed, and the second water outlet pipe is connected to the valve. The sleeve rotates while driving the rotating shaft and the water spray pipe to rotate and spray water, and the sewage valve on the sewage pipe is opened, and sewage flows out from the sewage pipe, thereby achieving the effect of backwashing the inner wall of the filter, and cleaning the fine particles remaining on the filter, which is beneficial to improving the filtering effect of the filter and extending the service life of the filter.

[0019] 2. In the utility model, by setting a disassembly component, when the base needs to be removed, the first knob is rotated, and the rotation of the first knob drives the rotating rod to rotate and move inside the protective box. The movement of the rotating rod drives the clamping block to move to the disengagement slot, thereby contacting the limit of the base. At this time, the mounting seat is rotated, and the rotation of the mounting seat drives the threaded sleeve to rotate, and the threaded sleeve rotates and moves to the inside of the disengagement connection part, thereby pulling out the mounting seat and the outer shell downward, thereby realizing the rapid disassembly and installation of the filter, which is convenient for the operator to use and replace the filter. It has the characteristics of simple structure, easy operation, and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0022] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0023] Figure 4 This is a schematic diagram of the split structure of the utility model;

[0024] Legend:

[0025] 1. Shell; 2. Mounting seat; 3. First water inlet pipe; 4. Water outlet pipe; 5. Connecting part; 6. Placement box; 7. Disassembly assembly; 701. First knob; 702. Rotating rod; 703. Protection box; 704. Compression spring; 705. Baffle; 706. Block; 707. Slot; 8. Backwash assembly; 801. Second water inlet pipe; 802. Rotating shaft; 803. Water spray pipe; 804. Second knob; 9. Cleaning assembly; 901. Sleeve; 902. Rotating blade; 903. Disc; 904. Scraper; 10. Drain valve; 11. Pressure gauge; 12. Base; 13. Filter; 14. Water inlet; 15. Threaded sleeve; 16. Sealing ring; 17. Drain pipe. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-4The utility model provides a technical solution: a pre-filter component for a sewage pump, comprising a shell 1, a mounting seat 2 is installed on the top of the shell 1, a threaded sleeve 15 is connected to the top of the mounting seat 2, a connecting portion 5 is threadedly connected to the outer side of the threaded sleeve 15, a placement box 6 is connected to the top of the connecting portion 5, a first water inlet pipe 3 is installed on one side of the connecting portion 5, and a water inlet 14 is opened on the threaded sleeve 15 corresponding to the position of the first water inlet pipe 3, a base 12 is installed on the inner side of the shell 1, a disassembly component 7 is installed on both sides of the base 12, a filter screen 13 is installed on the top of the base 12, a cleaning component 9 is installed on the outer side of the filter screen 13, a backwashing component 8 is arranged on the inner side of the filter screen 13, a water outlet pipe 4 is connected to the bottom of the shell 1, a pressure gauge 11 is installed on the top of the placement box 6, sealing rings 16 are installed on both sides of the card slot 707, a sewage pipe 17 is installed on one side of the filter screen 13, and a sewage valve 10 is installed on the top of the sewage pipe 17;

[0028] The disassembly assembly 7 includes a first knob 701, a rotating rod 702 is installed on one side of the first knob 701, a compression spring 704 is sleeved on the outer side of the rotating rod 702, one end of the compression spring 704 is connected to a baffle 705, the other end of the compression spring 704 is connected to a protective box 703, one side of the protective box 703 is connected to the outer wall of one side of the housing 1, a clamping block 706 is installed on the other end of the rotating rod 702, and both sides of the base 12 are provided with clamping grooves 707, and one side of the clamping block 706 is clamped to the inner side of the clamping groove 707;

[0029] The specific implementation method is as follows: when the base 12 needs to be removed, the first knob 701 is rotated. The first knob 701 rotates and drives the rotating rod 702 to rotate and move inside the protective box 703. The rotating rod 702 moves and drives the block 706 to move to the disengagement slot 707, thereby contacting and limiting the base 12. At this time, the mounting seat 2 is rotated. The rotation of the mounting seat 2 drives the threaded sleeve 15 to rotate. The threaded sleeve 15 rotates and moves to the inside of the disengagement connection portion 5, thereby pulling the mounting seat 2 and the housing 1 downward. The designed sealing ring 16 is installed at the connection between the base 12 and the housing 1 to prevent internal water from entering and polluting the water quality. At the same time, it can avoid corrosion of the rotating rod 702, extend the service life of the equipment, and ensure stable operation of the equipment.

[0030] The backwash component 8 includes a second knob 804, a rotating shaft 802 is installed at the bottom end of the second knob 804, one side of the rotating shaft 802 is connected to a second water inlet pipe 801, the other end of the second water inlet pipe 801 is located on one side of the placement box 6, the outer side of the rotating shaft 802 is connected to a plurality of water spray pipes 803, one end of the water spray pipes 803 is located on the inner side of the filter 13, the cleaning component 9 includes a sleeve 901, the sleeve 901 is installed on the outer side of the rotating shaft 802, a plurality of rotating blades 902 are installed on the outer side of the sleeve 901, a disc 903 is installed at the bottom end of the sleeve 901, a plurality of scrapers 904 are installed on one side of the bottom of the disc 903, and the inner side of the scraper 904 is in contact with the outer side of the filter 13.

[0031] The specific implementation method is as follows: water flows from the inside of the first water inlet pipe 3 to the inside of the connecting part 5, and the inside of the connecting part 5 is connected to the water inlet 14 on one side of the threaded sleeve 15. The water flow impacts the rotating blades 902 on the top, so that the rotating blades 902 on the outside of the sleeve 901 rotate. The rotating blades 902 drive the sleeve 901 to rotate while the sleeve 901 rotates. The rotation of the sleeve 901 drives the disc 903 to rotate. The rotation of the disc 903 drives the multiple scrapers 904 at the bottom to rotate. The scrapers 904 fit the outer wall of the filter screen 13, thereby realizing automatic cleaning of large particles or impurities on the outer wall of the filter screen 13. After the water from the first water outlet pipe 4 is filtered on the outside of the filter screen 13, it enters the water outlet through the water outlet. When the filter 13 needs to be backwashed, the first water outlet pipe 4 is closed, and the second water outlet pipe 4 is connected to the valve. The sleeve 901 rotates while driving the rotating shaft 802 to rotate. The rotating shaft 802 drives the water spray pipe 803 to rotate and spray water. At the same time, the backwash component 8 can be manually adjusted by turning the second knob 804. Finally, the drain valve 10 on the drain pipe 17 is opened, and the sewage flows out from the drain pipe 17, thereby achieving the effect of backwashing the inner wall of the filter 13. Through the designed drain pipe 17, one side of the drain pipe 17 is installed on the bottom side of the filter 13 to prevent the accumulation of mud and impurities at the bottom of the filter 13, which is inconvenient to discharge.

[0032] Working principle: When in use, first, water flows from the inside of the first water inlet pipe 3 to the inside of the connecting part 5. The inside of the connecting part 5 is connected to the water inlet 14 on one side of the threaded sleeve 15. The water flow impacts the rotating blade 902 on the top, causing the rotating blade 902 on the outside of the sleeve 901 to rotate. The rotating blade 902 drives the sleeve 901 to rotate while the rotating blade 902 drives the disk 903 to rotate. The rotation of the disk 903 drives the multiple scrapers 904 at the bottom to rotate. The scrapers 904 fit the outer wall of the filter 13, thereby automatically cleaning the large particles or impurities on the outer wall of the filter 13, eliminating the tedious manual cleaning and facilitating the use of the operator. The water output from the first water outlet pipe 4 is filtered through the outside of the filter 13 and then discharged through the water outlet. When the filter 13 needs to be backwashed, the first water outlet pipe 4 is closed and the second water outlet is The water pipe 4 is connected to the valve, and the rotation of the sleeve 901 drives the rotating shaft 802 to rotate. The rotation of the rotating shaft 802 drives the water spray pipe 803 to rotate and spray water. Finally, the drain valve 10 on the drain pipe 17 is opened, and the sewage flows out from the drain pipe 17, achieving the effect of reverse flushing the inner wall of the filter 13. When the base 12 needs to be removed, the first knob 701 is turned. The rotation of the first knob 701 drives the rotating rod 702 to rotate and move inside the protective box 703. The movement of the rotating rod 702 drives the block 706 to move to the disengagement slot 707, thereby contacting the base 12 to limit the position. At this time, the mounting seat 2 is rotated, and the rotation of the mounting seat 2 drives the threaded sleeve 15 to rotate. The threaded sleeve 15 rotates and moves to the inside of the disengagement connection part 5, thereby pulling out the mounting seat 2 and the outer shell 1 downward, thereby achieving quick disassembly and installation of the filter 13.

[0033] 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 pre-filter assembly for a sewage pump, comprising a housing (1), characterized in that: A mounting seat (2) is installed on the top of the shell (1), a threaded sleeve (15) is connected to the top of the mounting seat (2), a connecting portion (5) is threadedly connected to the outer side of the threaded sleeve (15), a placement box (6) is connected to the top of the connecting portion (5), a first water inlet pipe (3) is installed on one side of the connecting portion (5), a water inlet (14) is provided on the threaded sleeve (15) at a position corresponding to the first water inlet pipe (3), a base (12) is installed on the inner side of the shell (1), disassembly components (7) are installed on both sides of the base (12), a filter screen (13) is installed on the top of the base (12), a cleaning component (9) is installed on the outer side of the filter screen (13), and a backwashing component (8) is provided on the inner side of the filter screen (13).

2. A pre-filter assembly for a sewage pump according to claim 1, characterized in that: The disassembly assembly (7) comprises a first knob (701), a rotating rod (702) is installed on one side of the first knob (701), a compression spring (704) is sleeved on the outer side of the rotating rod (702), one end of the compression spring (704) is connected to a baffle (705), the other end of the compression spring (704) is connected to a protective box (703), one side of the protective box (703) is connected to the outer wall of one side of the housing (1), a clamping block (706) is installed on the other end of the rotating rod (702), both sides of the base (12) are provided with clamping grooves (707), and one side of the clamping block (706) is clamped to the inner side of the clamping groove (707).

3. A pre-filter assembly for a sewage pump according to claim 1, characterized in that: The backwash assembly (8) comprises a second knob (804), a rotating shaft (802) is installed at the bottom end of the second knob (804), one side of the rotating shaft (802) is connected to a second water inlet pipe (801), the other end of the second water inlet pipe (801) is located on one side of the placement box (6), the outer side of the rotating shaft (802) is connected to a plurality of water spray pipes (803), one end of the water spray pipe (803) is located on the inner side of the filter screen (13).

4. The pre-filter assembly for a sewage pump according to claim 1, characterized in that: The cleaning assembly (9) comprises a sleeve (901), the sleeve (901) being mounted on the outside of the rotating shaft (802), a plurality of rotating blades (902) being mounted on the outside of the sleeve (901), a disc (903) being mounted on the bottom end of the sleeve (901), a plurality of scrapers (904) being mounted on one side of the bottom of the disc (903), and the inner side of the scraper (904) being in contact with the outer side of the filter screen (13).

5. The pre-filter assembly for a sewage pump according to claim 1, characterized in that: The bottom of the shell (1) is connected to a water outlet pipe (4), and the top of the storage box (6) is equipped with a pressure gauge (11).

6. A pre-filter assembly for a sewage pump according to claim 2, characterized in that: Sealing rings (16) are installed on both sides of the slot (707), a sewage pipe (17) is installed on one side of the filter screen (13), and a sewage valve (10) is installed on the top of the sewage pipe (17).

Images