CN218740554U

CN218740554U - Impurity filtering device

Info

Publication number: CN218740554U
Application number: CN202222839338.9U
Authority: CN
Inventors: 黎莎; 黎太山
Original assignee: Beijing Railway Institute of Mechanical and Electrical Engineering Group Co Ltd
Current assignee: Beijing Railway Institute of Mechanical and Electrical Engineering Group Co Ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-03-28
Anticipated expiration: 2032-10-27

Abstract

The utility model belongs to the technical field of cleaning equipment, a impurity filtering device is disclosed, including converging the flow box and locating the cartridge filter that converges flow box low reaches, be equipped with a plurality of first filtration pores of crossing on the cartridge filter, be equipped with pivot and screw guide vane in the cartridge filter, screw guide vane uses the axis of pivot to rise as the axle spiral, is equipped with the second on the screw guide vane and crosses the filtration pore, all is provided with the flexible brush between the screw guide vane of arbitrary adjacent two pitches, and the flexible brush is connected with the pivot, and the upper port of cartridge filter is provided with ejection of compact brush, and ejection of compact brush is used for rolling up the impurity of screw guide vane spiral upper end and sweeps out the cartridge filter. The flow of washing liquid that contains impurity in the collection flow box flows to the cartridge filter, and impurity stays in the cartridge filter, and the washing liquid flows out the cartridge filter through first filtration pore. The pivot drives flexible brush and rotates, and the flexible brush in each filter is upwards pushed away impurity and is swept last filter, and along with the pivot is constantly rotatory, impurity is pushed away by flexible brush from bottom to top and is swept to the spiral upper end of helical vane, realizes the collection of impurity, upwards carries and discharges.

Description

Impurity filtering device

Technical Field

The utility model relates to a cleaning equipment technical field especially relates to an impurity filtering device.

Background

The cleaning operation plays an important role in the locomotive maintenance process. Automatic cleaning equipment all includes impurity filter equipment to the impurity and the suspended solid in to the liquid are intercepted. The common impurity filtering device comprises a filtering frame, a filtering bag, an oil-water separator, a belt filter and the like.

For filtering the impurities with larger size, a mechanical filter frame or filter bag is usually arranged at the liquid outlet to intercept the impurities in the liquid, and the filtered liquid returns to the cleaning process again through a water pump and a pipeline for recycling. When the space of straining frame or filter bag is filled up to impurity, need make cleaning equipment shut down to impurity in manual clearance straining frame or the filter bag prevents that impurity from blockking up cleaning equipment's tube pump, and whole degree of automation is low, and the cleaning efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an impurity filtering device, under the condition that cleaning equipment does not shut down, this impurity filtering device can filter and discharge impurity, improves the continuity of cleaning equipment every link in the operation flow, and degree of automation is high, and the cleaning efficiency is high.

In order to realize the purpose, the following technical scheme is provided:

the utility model provides an impurity filtering device, including converging the flow box and set up in converge flow box low reaches cartridge filter, be provided with a plurality of first filtration pores of crossing on the cartridge filter, be provided with pivot and screw guide vane in the cartridge filter, screw guide vane with the axis of pivot rises for the axle spiral, be provided with the second on the screw guide vane and cross the filtration pore, arbitrary adjacent two pitches all be provided with the flexible brush between the screw guide vane, the flexible brush with the pivot is connected, the upper end mouth of cartridge filter is provided with ejection of compact brush, ejection of compact brush be used for with the impurity book of screw guide vane spiral upper end sweeps out the cartridge filter.

Optionally, the discharging brush further comprises a driving assembly, an output shaft of the driving assembly is coaxially connected with the rotating shaft, and the output shaft is further in transmission connection with the discharging brush through a transmission assembly.

Optionally, the transmission assembly comprises a first transmission assembly and a second transmission assembly, the first transmission assembly comprises a first bevel gear and a second bevel gear which are meshed with each other, the first bevel gear is coaxially connected with the output shaft, and the second bevel gear is in transmission connection with the discharging brush through the second transmission assembly.

Optionally, the second transmission assembly comprises a first chain wheel, a second chain wheel and a chain, the first chain wheel is coaxially connected with the second bevel gear, the first chain wheel is in transmission connection with the second chain wheel through the chain, and the second chain wheel is coaxially connected with the discharging brush through a first connecting shaft.

Optionally, two first bevel gears and two second bevel gears are provided, two second transmission assemblies are provided, the two first bevel gears are coaxially and oppositely arranged on the rotating shaft at intervals, and the two second bevel gears are oppositely arranged at intervals and are simultaneously meshed with the two first bevel gears;

one of the second bevel gears is coaxially connected with the first chain wheel in one of the second transmission assemblies through a second connecting shaft; the other second bevel gear is coaxially connected with the first chain wheel in the other second transmission assembly through a third connecting shaft.

Optionally, still include the protection casing, the protection casing set up in the upper end of cartridge filter is covered and is established transmission assembly with ejection of compact brush, be provided with first hole and the discharge gate of dodging on the protection casing, drive assembly's output shaft by first hole of dodging stretches into in the protection casing, ejection of compact brush will the impurity book of spiral stator spiral upper end is swept extremely the discharge gate.

Optionally, the protective cover further comprises a first mounting frame, a second mounting frame and a third mounting frame which are arranged on the inner side of the protective cover;

the first mounting bracket includes:

the first plate and the second plate are oppositely arranged, a second avoidance hole is formed in the first plate, a third avoidance hole is formed in the second plate, and the rotating shaft sequentially penetrates through the second avoidance hole and the third avoidance hole;

a third plate connecting one end of the first plate and one end of the second plate;

a fourth plate connecting the other end of the first plate and the other end of the second plate; the first plate, the second plate, the third plate and the fourth plate are arranged in a surrounding manner to form an accommodating cavity, and the two first bevel gears and the two second bevel gears are located in the accommodating cavity;

the second mounting rack is positioned on one side of the third plate far away from the fourth plate, and the third mounting rack is positioned on one side of the fourth plate far away from the third plate; the second connecting shaft penetrates through the third plate and the first mounting frame and is connected with the corresponding first chain wheel, and the third connecting shaft penetrates through the fourth plate and the third mounting frame and is connected with the corresponding first chain wheel;

the ejection of compact brush is located the second mounting bracket with between the third mounting bracket, first connecting axle with ejection of compact brush coaxial coupling, just wear to establish respectively at the both ends of first connecting axle the second mounting bracket with behind the third mounting bracket, with correspond the second sprocket is connected.

Optionally, the first and second mounting shafts are further included, two ends of the first mounting shaft are respectively connected to the third plate and the second mounting frame, and two ends of the second mounting shaft are respectively connected to the fourth plate and the third mounting frame.

Optionally, the filter cartridge further comprises a discharging groove, the discharging groove is arranged on the outer wall of the upper port of the filter cartridge, the discharging groove is located on the lower side of the discharging port, and the discharging groove is inclined downwards.

Optionally, still include bottom plate and switching cover, the bottom plate includes first bottom plate portion and second bottom plate portion, first bottom plate portion supports the cartridge filter, the lateral wall of cartridge filter is provided with the opening, the switching cover with second bottom plate portion encloses to establish and forms a switching section of thick bamboo, the one end of a switching section of thick bamboo with the flow box intercommunication converges, the other end with the opening intercommunication of cartridge filter, the switching is covered and is provided with a plurality of third filtration pores.

The beneficial effects of the utility model are that:

the utility model provides an impurity filtering device, cleaning equipment adopt the washing liquid to wash and overhaul the locomotive, and later the collection is concentrated to the washing liquid that contains impurity to the collection that converges box. And then, the cleaning solution containing impurities in the confluence box flows into a downstream filter cylinder, the impurities are larger than the first filter holes and are left in the filter cylinder, and the cleaning solution flows out of the filter cylinder through the first filter holes and is conveyed by a water pump and a pipeline to return to the cleaning process for recycling. Spiral guide vanes which rise spirally are arranged in the filter cylinder, and a filter channel is formed between every two adjacent spiral guide vanes. The impurity of staying in the cartridge filter flows to spiral guide vane's bottom, later the pivot drives flexible brush and rotates, spiral guide vane does not rotate, the bottom of flexible brush is laminated with spiral guide vane all the time, the flexible brush that is arranged in the lower floor filter channel upwards pushes away impurity and sweeps to inferior bottom filter channel in, flexible brush in inferior bottom filter channel upwards pushes away impurity again and sweeps to last filter channel, the pivot is constantly rotatory, thereby impurity is pushed away by from bottom to top under the effect of flexible brush in each filter channel and sweeps to spiral guide vane's spiral upper end, the washing liquid in impurity is filtered the hole by the second on the spiral guide vane and is dripped downwards at this in-process. And finally, the discharging brush sweeps the impurity roll at the upper end of the spiral guide vane out of the filter cylinder, so that the impurities are collected, conveyed upwards and discharged, the cleaning equipment does not need to be stopped to discharge the impurities, the continuity of each cleaning process is ensured, and the cleaning efficiency is high.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is an isometric view of an impurity filtering device provided in an embodiment of the present invention;

fig. 2 is an exploded view of a device for filtering impurities according to an embodiment of the present invention;

fig. 3 is a first isometric view of a helical guide vane, a flexible brush, a drive assembly, a first drive assembly, a second drive assembly, and a discharge brush in an impurity filtering device according to an embodiment of the present invention;

fig. 4 is a second axial view of the spiral guide vane, the flexible brush, the driving assembly, the first transmission assembly, the second transmission assembly and the discharging brush in the impurity filtering device provided by the embodiment of the present invention;

fig. 5 is an exploded view of the driving assembly, the first transmission assembly, the second transmission assembly and the discharging brush in the impurity filtering device according to the embodiment of the present invention.

Reference numerals:

1. a combiner box; 2. a filter cartridge; 3. a rotating shaft; 4. a helical guide vane; 5. a flexible brush; 6. a discharging brush; 7. a drive assembly; 8. a first transmission assembly; 9. a second transmission assembly; 10. a protective cover; 20. a first mounting bracket; 30. a second mounting bracket; 40. a third mounting bracket; 50a, a first mounting shaft; 50b, a second mounting shaft; 60. a feeding trough; 70. a base plate; 80. a transfer housing;

21. a first filtering hole; 22. an opening;

41. a second filtering hole;

71. an output shaft;

81. a first bevel gear; 82. a second bevel gear; 83. a second connecting shaft; 84. a third connecting shaft;

91. a first sprocket; 92. a second sprocket; 93. a chain; 94. a first connecting shaft;

101. a first avoidance hole; 102. a discharge port;

201. a first plate; 2011. a second avoidance hole; 202. a second plate; 2021. a third avoidance hole; 203. a third plate; 204. a fourth plate;

701. a first bottom plate portion; 702. a second bottom plate portion;

801. and a third filtering hole.

Detailed Description

In order to make the technical problems, technical solutions adopted and technical effects achieved by the present invention clearer, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection or a detachable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment provides an impurity filtering device, and it is arranged in cleaning equipment for impurity to in the washing liquid filters and automatic discharge, need not that cleaning equipment shuts down in order to take out filterable impurity, guarantees the continuity of washing flow, and the cleaning efficiency is high.

As shown in fig. 1 to 5, the impurity filtering apparatus of the present embodiment includes a flow-converging box 1 and a filter cartridge 2 disposed at a downstream of the flow-converging box 1, a plurality of first filtering holes 21 are disposed on the filter cartridge 2, a rotating shaft 3 and a spiral guide vane 4 are disposed in the filter cartridge 2, the spiral guide vane 4 rises spirally by taking an axis of the rotating shaft 3 as an axis, a second filtering hole 41 is disposed on the spiral guide vane 4, a flexible brush 5 is disposed between any two adjacent spiral guide vanes 4, the flexible brush 5 is connected to the rotating shaft 3, a discharging brush 6 is disposed at an upper port of the filter cartridge 2, and the discharging brush 6 is used for sweeping impurities at a spiral upper end of the spiral guide vane 4 out of the filter cartridge 2.

The cleaning equipment adopts cleaning fluid to clean the maintenance locomotive, and then the header box 1 collects the cleaning fluid containing impurities in a centralized manner. Illustratively, the header box 1 is made of stainless steel metal plate, and is corrosion-resistant and long in service life. Then, the cleaning liquid containing impurities in the confluence box 1 flows to the downstream filter cylinder 2, the impurities are larger than the first filtering holes 21 and are left in the filter cylinder 2, and the cleaning liquid flows out of the filter cylinder 2 through the first filtering holes 21 and is conveyed by a water pump and a pipeline to return to the cleaning process for recycling. Illustratively, the pore diameters of the plurality of first filtering pores 21 are not exactly the same, so that the filtering effect is better.

Spiral guide vanes 4 which rise spirally are arranged in the filter cylinder 2, and a filter channel is formed between every two adjacent spiral guide vanes 4. Stay impurity in cartridge filter 2 and flow to the bottom of helical guide 4, later the pivot 3 drives flexible brush 5 and rotates, helical guide 4 does not rotate, the bottom of flexible brush 5 is laminated with helical guide 4 all the time, the flexible brush 5 that is arranged in the bottom filter path pushes away impurity upwards and sweeps to inferior bottom filter path, flexible brush 5 in inferior bottom filter path pushes away impurity upwards again and sweeps to last filter path, pivot 3 constantly rotates, thereby impurity is pushed away to helical guide 4's spiral upper end from bottom to top under the effect of flexible brush 5 in each filter path, the washing liquid in this in-process impurity is by the downward drippage of second filtration pore 41 on helical guide 4. Finally, the discharging brush 6 sweeps the impurities at the upper end of the spiral guide vane 4 out of the filter cylinder 2. Cartridge filter 2, spiral stator 4, pivot 3, flexible brush 5 and ejection of compact brush 6 cooperate jointly, realize the collection of impurity, upwards carry and discharge, need not to make cleaning equipment shut down with discharge impurity, guaranteed the continuity of each washing flow, the cleaning efficiency height.

Optionally, the edge of the helical guide vane 4 is attached to the inner wall of the filter cartridge 2 without a gap, avoiding impurities from falling through the gap.

It can be understood that the flexible brush 5 can be deformed to some extent, and the flexible brush 5 can be ensured to rotate smoothly along the spiral direction of the spiral guide vane 4 without being damaged.

Optionally, the impurity filtering device further comprises a driving assembly 7, an output shaft 71 of the driving assembly 7 is coaxially connected with the rotating shaft 3, and the output shaft 71 is further in transmission connection with the discharging brush 6 through a transmission assembly. One drive assembly 7 drives the rotating shaft 3 and the discharging brush 6 to rotate simultaneously, and compared with the arrangement that two drive assemblies 7 respectively drive the rotating shaft 3 and the discharging brush 6 to rotate, the structure of the embodiment is more compact. Illustratively, the drive assembly 7 is an electric motor.

Optionally, the transmission assembly comprises a first transmission assembly 8 and a second transmission assembly 9, the first transmission assembly 8 comprises a first bevel gear 81 and a second bevel gear 82 which are engaged, the first bevel gear 81 is coaxially connected with the output shaft 71, and the second bevel gear 82 is in transmission connection with the discharging brush 6 through the second transmission assembly 9. The output shaft 71 drives the rotating shaft 3 to rotate, and meanwhile, part of power of the output shaft 71 is transmitted to the second transmission assembly 9 and the discharging brush 6 in a reversing way through the first bevel gear 81 and the second bevel gear 82.

Further alternatively, the second transmission assembly 9 comprises a first chain wheel 91, a second chain wheel 92 and a chain 93, the first chain wheel 91 is coaxially connected with the second bevel gear 82, the first chain wheel 91 is in transmission connection with the second chain wheel 92 through the chain 93, and the second chain wheel 92 is coaxially connected with the discharging brush 6 through a first connecting shaft 94. The second bevel gear 82 drives the first chain wheel 91 to rotate, the first chain wheel 91 drives the second chain wheel 92 to rotate through the chain 93, the second chain wheel 92 drives the discharging brush 6 to rotate through the first connecting shaft 94, and the discharging brush 6 sweeps the impurity roll on the spiral top end of the spiral guide vane 4 out of the filter cylinder 2.

Alternatively, two first bevel gears 81 and two second bevel gears 82 are provided, two second transmission assemblies 9 are provided, two first bevel gears 81 are coaxially and oppositely arranged on the rotating shaft 3 at intervals, and two second bevel gears 82 are oppositely arranged at intervals and are simultaneously meshed with the two first bevel gears 81. One of the second bevel gears 82 is coaxially connected with the first sprocket 91 in one of the second transmission assemblies 9 through the second connecting shaft 83; the other second bevel gear 82 is coaxially connected with a first sprocket 91 in the other second transmission assembly 9 through a third connecting shaft 84. Two first bevel gears 81, two second bevel gears 82 and two second transmission assemblies 9 are adopted, so that the transmission is more stable.

Optionally, the impurity filtering device further includes a protective cover 10, the protective cover 10 is disposed at the upper end of the filter cylinder 2 and covers the transmission assembly and the discharging brush 6, a first avoiding hole 101 and a discharging hole 102 are disposed on the protective cover 10, the output shaft 71 of the driving assembly 7 extends into the protective cover 10 through the first avoiding hole 101, and the discharging brush 6 sweeps the impurity roll at the upper end of the spiral guide vane 4 to the discharging hole 102. Establish drive assembly and ejection of compact brush 6 through protection casing 10 covers, avoid the staff mistake to bump and be injured, also reduce external dust and get into drive assembly and ejection of compact brush 6 and influence normal cleaning work. Illustratively, the lower end edge of the protective cover 10 is fixedly connected to the upper end edge of the filter cartridge 2 by bolts. The fixed end of the driving assembly 7 is fixed to the shield 10 by a bolt.

In order to facilitate the arrangement of the transmission assembly and the discharging brush 6, the impurity filtering device further comprises a first mounting frame 20, a second mounting frame 30 and a third mounting frame 40 which are arranged at the inner side of the protective cover 10. Wherein the first mount 20 includes a first plate 201, a second plate 202, a third plate 203, and a fourth plate 204. The first plate 201 and the second plate 202 are arranged oppositely, the third plate 203 is connected with one end of the first plate 201 and one end of the second plate 202, the fourth plate 204 is connected with the other end of the first plate 201 and the other end of the second plate 202, the first plate 201, the second plate 202, the third plate 203 and the fourth plate 204 are surrounded to form an accommodating cavity, and the two first bevel gears 81 and the two second bevel gears 82 are located in the accommodating cavity; the first plate 201 is provided with a second avoiding hole 2011, the second plate 202 is provided with a third avoiding hole 2021, and the rotating shaft 3 sequentially penetrates through the second avoiding hole 2011 and the third avoiding hole 2021. The second mounting bracket 30 is positioned on the side of the third plate 203 away from the fourth plate 204, and the third mounting bracket 40 is positioned on the side of the fourth plate 204 away from the third plate 203; the second connecting shaft 83 is connected to the corresponding first sprocket 91 after passing through the third plate 203 and the first mounting bracket 20, and the third connecting shaft 84 is connected to the corresponding first sprocket 91 after passing through the fourth plate 204 and the third mounting bracket 40. The discharging brush 6 is located between the second mounting frame 30 and the third mounting frame 40, the first connecting shaft 94 is coaxially connected with the discharging brush 6, and after the second mounting frame 30 and the third mounting frame 40 are respectively penetrated and arranged at two ends of the first connecting shaft 94, the first connecting shaft is connected with the corresponding second chain wheel 92. The second mounting bracket 30 serves as a mounting carrier for the second connecting shaft 83, the third mounting bracket 40 serves as a mounting carrier for the third connecting shaft 84, and the second mounting bracket 30 and the third mounting bracket 40 together serve as a mounting carrier for the first connecting shaft 94. Illustratively, the first mounting bracket 20 has a rectangular frame shape, and the second mounting bracket 30 and the third mounting bracket 40 have a plate shape.

In order to realize the installation of the second and third mounting frames 30 and 40, the impurity filtering device further includes a first mounting shaft 50a and a second mounting shaft 50b, both ends of the first mounting shaft 50a are respectively connected to the third plate 203 and the second mounting frame 30, and both ends of the second mounting shaft 50b are respectively connected to the fourth plate 204 and the third mounting frame 40. The second mounting frame 30 and the third mounting frame 40 are fixed on the first mounting frame 20 through the first mounting shaft 50a and the second mounting shaft 50b, respectively, and the structure is simple and the installation is convenient. Illustratively, the first mounting shafts 50a are provided in four, and four first mounting shafts 50a are respectively provided at four corners of the rectangular second mounting frame 30; similarly, four second mounting shafts 50b are also provided, and the four second mounting shafts 50b are respectively provided at four corners of the rectangular third mounting bracket 40.

Optionally, the impurity filtering apparatus further comprises a discharging chute 60, the discharging chute 60 is disposed on the outer wall of the upper end of the filter cartridge 2, the discharging chute 60 is located at the lower side of the discharging hole 102, and the discharging chute 60 is inclined downwards. The discharging brush 6 sweeps the impurity roll at the upper end of the spiral guide vane 4 out of the filter cylinder 2, and then the impurities fall into the blanking groove 60 and slide to the bottom of the blanking groove 60.

Optionally, the impurity filtering apparatus further includes a bottom plate 70 and an adapter cover 80, the bottom plate 70 includes a first bottom plate 701 and a second bottom plate 702, the first bottom plate 701 supports the filter cartridge 2, the side wall of the filter cartridge 2 is provided with an opening 22, the adapter cover 80 and the second bottom plate 702 are surrounded to form an adapter cylinder, one end of the adapter cylinder is communicated with the header box 1, the other end of the adapter cylinder is communicated with the opening 22 of the filter cartridge 2, and the adapter cover 80 is provided with a plurality of third filtering holes 801. The cleaning liquid in the header tank 1 flows into the filter cartridge 2 through the adapter cylinder. Through addding the switching cover 80, be convenient for converge flow box 1 and cartridge filter 2's structural design and processing.

Optionally, the impurity filtering device further comprises a liquid collecting cylinder arranged below the filter cylinder 2 and the adapter cylinder and used for receiving the filtered cleaning liquid. The cleaning liquid in the liquid collecting cylinder is conveyed by a water pump and a pipeline and returns to the cleaning process again for recycling.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides an impurity filtering device, its characterized in that, including flow box (1) and set up in flow box (1) low reaches cartridge filter (2) converge, be provided with a plurality of first filtration pores (21) on cartridge filter (2), be provided with pivot (3) and screw guide vane (4) in cartridge filter (2), screw guide vane (4) with the axis of pivot (3) rises for the axle spiral, be provided with second filtration pore (41) on screw guide vane (4), arbitrary two adjacent pitches all be provided with flexible brush (5) between screw guide vane (4), flexible brush (5) with pivot (3) are connected, the up end of cartridge filter (2) is provided with ejection of compact brush (6), ejection of compact brush (6) are used for with the impurity of screw guide vane (4) spiral upper end is rolled up and is swept out cartridge filter (2).

2. Impurity filtering device according to claim 1, characterized in that it further comprises a driving assembly (7), the output shaft (71) of said driving assembly (7) is coaxially connected with said rotating shaft (3), and said output shaft (71) is also in transmission connection with said discharging brush (6) through a transmission assembly.

3. Impurity filtering device according to claim 2, characterized in that the transmission assembly comprises a first transmission assembly (8) and a second transmission assembly (9), the first transmission assembly (8) comprises a first bevel gear (81) and a second bevel gear (82) which are engaged, the first bevel gear (81) is coaxially connected with the output shaft (71), and the second bevel gear (82) is in transmission connection with the discharging brush (6) through the second transmission assembly (9).

4. Impurity filtering device according to claim 3, wherein the second transmission assembly (9) comprises a first sprocket (91), a second sprocket (92) and a chain (93), the first sprocket (91) being coaxially connected with the second bevel gear (82), the first sprocket (91) being drivingly connected with the second sprocket (92) via the chain (93), the second sprocket (92) being coaxially connected with the outfeed brush (6) via a first connecting shaft (94).

5. Impurity filtering device according to claim 4, wherein there are two first bevel gears (81) and two second bevel gears (82), and there are two second transmission assemblies (9), wherein the two first bevel gears (81) are coaxially and oppositely arranged on the rotating shaft (3) at intervals, and the two second bevel gears (82) are oppositely arranged at intervals and are simultaneously meshed with the two first bevel gears (81);

one of the second bevel gears (82) is coaxially connected with the first chain wheel (91) in one of the second transmission assemblies (9) through a second connecting shaft (83); the other second bevel gear (82) is coaxially connected with the first chain wheel (91) in the other second transmission assembly (9) through a third connecting shaft (84).

6. The impurity filtering device according to claim 5, further comprising a protective cover (10), wherein the protective cover (10) is arranged at the upper end of the filter cylinder (2) and covers the transmission assembly and the discharging brush (6), a first avoiding hole (101) and a discharging hole (102) are arranged on the protective cover (10), an output shaft (71) of the driving assembly (7) extends into the protective cover (10) from the first avoiding hole (101), and the discharging brush (6) sweeps the impurity roll at the upper end of the spiral guide vane (4) to the discharging hole (102).

7. Impurity filtering device according to claim 6, further comprising a first mounting bracket (20), a second mounting bracket (30) and a third mounting bracket (40) arranged inside the hood (10);

the first mounting bracket (20) comprises:

the first plate (201) and the second plate (202) are arranged oppositely, a second avoidance hole (2011) is formed in the first plate (201), a third avoidance hole (2021) is formed in the second plate (202), and the rotating shaft (3) penetrates through the second avoidance hole (2011) and the third avoidance hole (2021) in sequence;

a third plate (203) connecting one end of the first plate (201) and one end of the second plate (202);

a fourth plate (204) connecting the other end of the first plate (201) and the other end of the second plate (202); the first plate (201), the second plate (202), the third plate (203) and the fourth plate (204) are arranged in an enclosing manner to form an accommodating cavity, and the two first bevel gears (81) and the two second bevel gears (82) are located in the accommodating cavity;

the second mounting bracket (30) is positioned on the side of the third plate (203) far away from the fourth plate (204), and the third mounting bracket (40) is positioned on the side of the fourth plate (204) far away from the third plate (203); the second connecting shaft (83) penetrates through the third plate (203) and the first mounting rack (20) and then is connected with the corresponding first chain wheel (91), and the third connecting shaft (84) penetrates through the fourth plate (204) and the third mounting rack (40) and then is connected with the corresponding first chain wheel (91);

ejection of compact brush (6) are located second mounting bracket (30) with between third mounting bracket (40), first connecting axle (94) with ejection of compact brush (6) coaxial coupling, just wear to establish respectively at the both ends of first connecting axle (94) second mounting bracket (30) with behind third mounting bracket (40), with correspond second sprocket (92) are connected.

8. Impurity filtering device according to claim 7, further comprising a first mounting shaft (50 a) and a second mounting shaft (50 b), the first mounting shaft (50 a) being connected at both ends to the third plate (203) and the second mounting bracket (30), respectively, and the second mounting shaft (50 b) being connected at both ends to the fourth plate (204) and the third mounting bracket (40), respectively.

9. The impurity filtering device according to claim 6, further comprising a discharging groove (60), wherein the discharging groove (60) is provided on an outer wall of the upper port of the filter cartridge (2), the discharging groove (60) is located at a lower side of the discharging hole (102), and the discharging groove (60) is inclined downward.

10. The impurity filtering device according to any one of claims 1 to 9, further comprising a bottom plate (70) and an adapter cover (80), wherein the bottom plate (70) comprises a first bottom plate part (701) and a second bottom plate part (702), the first bottom plate part (701) supports the filter cartridge (2), an opening (22) is formed in a side wall of the filter cartridge (2), the adapter cover (80) and the second bottom plate part (702) are enclosed to form the adapter cover, one end of the adapter cover is communicated with the confluence box (1), the other end of the adapter cover is communicated with the opening (22) of the filter cartridge (2), and a plurality of third filtering holes (801) are formed in the adapter cover (80).