CN221108508U - Filtering equipment - Google Patents

Abstract

The utility model discloses a filtering device which comprises a filtering device main body, a first filtering plate and a milling roller, wherein a feeding hole is formed in the left side of the top of the filtering device main body, the milling rollers are arranged on the left side and the right side of the inside of the feeding hole, a second driving motor is arranged at the input end of the milling roller on the left side, a first driving motor is arranged in the middle of the top of the filtering device main body, a second rotating shaft is arranged at the output end of the first driving motor, a second bevel gear is arranged below the second rotating shaft, a mounting frame is arranged below the second bevel gear, and a hydraulic cylinder is arranged inside the mounting frame. According to the utility model, under the action of the hydraulic oil cylinder, the vertical positions of the connecting shaft and the upper grinding plate can be changed, the upper grinding plate is moved upwards, so that cosmetic raw materials fall onto the lower grinding plate, and then the upper grinding plate is moved downwards to squeeze the cosmetic raw materials, so that the subsequent grinding is more efficient and the powder is finer.

Description

Filtering equipment

Technical Field

The utility model relates to the technical field of cosmetic production and processing, in particular to a filtering device.

Background

Cosmetic refers to chemical industry or fine chemical products that are spread on any part of the surface of the human body, such as skin, hair, nails, lips, teeth, etc., by painting, spraying, or the like, to clean, maintain, beautify, modify, and change the appearance, or correct the smell of the human body, and maintain a good state. In order to ensure that the produced cosmetics have good quality, the raw materials of the cosmetics need to be filtered to remove impurities, so that the produced finished products have finer use feeling.

The existing filtering equipment has the following problems:

The direct filter screen that uses carries out once filters, and filtration efficiency is lower, can not fully filter out impurity, and the filter effect is comparatively coarse, and the great granule in the raw materials is also filtered, extravagant raw materials, and the cost is raised, and the inconvenient dismantlement of installation of filter screen, the filter screen appear the condition of jam easily, and it is troublesome to wash, for this reason, we provide a filtration equipment.

Disclosure of utility model

The present utility model is directed to a filtering device, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a filtration equipment, includes filtration equipment main part, first filter and milling roller, the left side at filtration equipment main part top is provided with the feed inlet, the inside left and right sides of feed inlet all is provided with the milling roller, the left side the input of milling roller is provided with second driving motor, the centre at filtration equipment main part top is provided with first driving motor, the output of first driving motor is provided with the second axis of rotation, the below of second axis of rotation is provided with second conical gear, the below of second conical gear is provided with the mounting frame, the inside of mounting frame is provided with hydraulic cylinder, hydraulic cylinder's extension end is provided with the connecting axle, the below of connecting axle is provided with the lapping plate, one side that second conical gear was kept away from to first conical gear is provided with first axis of rotation, one side that second conical gear was kept away from to first axis of rotation is provided with the driving sprocket, the below of driving sprocket is provided with the second conical gear, the below of inside sprocket is provided with the inside of a plurality of filter, the inside is provided with the filter, a plurality of inside sets of filter plates are provided with the inside of filter, a plurality of inside sets of filter plates are provided with the inside of filter, a plurality of filter plates are provided with the inside of a plurality of filter.

Preferably, the second driving motor is fixedly connected with the left material grinding roller, and the two material grinding rollers are in meshed connection.

Preferably, the first driving motor is fixedly connected with the second rotating shaft, the second rotating shaft is fixedly connected with the mounting frame, the mounting frame is fixedly connected with the hydraulic oil cylinder, the hydraulic oil cylinder is fixedly connected with the connecting shaft, and the connecting shaft is fixedly connected with the upper grinding plate.

Preferably, the second bevel gear is meshed with the first bevel gear, the first bevel gear is fixedly connected with the first rotating shaft, the first rotating shaft is fixedly connected with the driving sprocket, the driving sprocket and the coaxial sprocket are in chain transmission, and the coaxial sprocket is fixedly connected with the eccentric wheel.

Preferably, the left and right sides of first filter and second filter below all is provided with the supporting shoe, the below of supporting shoe is provided with spacing branch, the top cover of spacing branch is equipped with buffer spring, buffer spring's below is provided with the fixed block, one side that the supporting shoe is close to filtration equipment main part inner wall is provided with movable slider, movable slider's outside cover is equipped with movable spout.

Preferably, the first filter plate and the second filter plate are in local contact with the supporting blocks, the supporting blocks are fixedly connected with the limiting supporting rods, the limiting supporting rods penetrate through the buffer springs and the inside of the fixing blocks, the supporting blocks are fixedly connected with the movable sliding blocks, and the movable sliding blocks are in local fit with the movable sliding grooves.

Preferably, the apertures of the third filter hole, the second filter hole and the first filter hole decrease from top to bottom.

Preferably, the notch is all seted up on the right side of first filter and second filter, the inside embedding of notch has the stopper, the left side cover of stopper is equipped with the sealing ring, the right side of stopper below is provided with the backup pad, the below of backup pad is provided with the pull handle, the top of pull handle is provided with the pull rod, the top cover of pull rod is equipped with supporting spring, supporting spring's top is provided with the stopper.

Preferably, the limiting plug is fixedly bonded with the sealing ring.

Preferably, the pull handle is fixedly connected with the pull rod, the pull rod is fixedly connected with the limiting block, and the pull rod penetrates through the supporting spring and the inside of the supporting plate.

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, under the action of the second driving motor, the left material grinding roller drives the right material grinding roller to rotate, so that larger solids in the cosmetic raw material entering the feed inlet can be primarily ground, and the cosmetic raw material is convenient to grind and the efficiency is improved.

According to the utility model, under the action of the hydraulic oil cylinder, the vertical positions of the connecting shaft and the upper grinding plate can be changed, the upper grinding plate is moved upwards, so that cosmetic raw materials fall onto the lower grinding plate, and then the upper grinding plate is moved downwards to squeeze the cosmetic raw materials, so that the subsequent grinding is more efficient and the powder is finer.

According to the utility model, under the action of the first driving motor, the second rotating shaft drives the installation frame and the hydraulic cylinder arranged in the installation frame to rotate, and drives the upper grinding plate fixedly connected with the connecting shaft to rotate, so that cosmetic raw materials on the lower grinding plate can be ground into fine powder, and then the fine powder is preliminarily filtered through the third filtering holes and falls below.

The utility model can drive the second bevel gear to rotate through the second rotating shaft under the action of the first driving motor, can drive the second bevel gear to rotate through the first rotating shaft, and can drive the coaxial chain wheel to rotate through the chain, and can drive the eccentric wheel to synchronously rotate, so that the second filter plate below is continuously pushed to vibrate in a reciprocating way, the pushing force acts on the supporting block and the buffer spring below the second filter plate, the moving track of the movable sliding block is limited by the buffer spring in cooperation with the movable sliding groove, the buffer spring provides buffer support for the second filter plate, meanwhile, the limit supporting rod below the second filter plate reciprocates to provide acting force for the first filter plate, so that the first filter plate reciprocates and the buffer spring provides buffer support for the first filter plate, the filtered cosmetic raw material is finer, and the filtering efficiency is also improved.

According to the utility model, the third filter holes of the lower grinding plate, the second filter holes of the second filter plate and the first filter holes of the first filter plate sequentially provide filtering treatment for the cosmetic raw materials, larger particles are continuously ground by the grinding plate or are intercepted above the filter plates, and the cosmetic raw materials filtered for multiple times finally fall into the recovery box.

The close fitting of the sealing ring and the notch can avoid the leakage of cosmetic raw materials in the filtering equipment main body in the filtering process, so that the pollution or waste of the raw materials in the filtering equipment main body is avoided.

When the filter plate is required to be cleaned, the pull handle is pulled downwards to enable the pull rod to move downwards and drive the limiting block to move downwards, the supporting spring is compressed to enable the limiting block to be far away from the limiting groove arranged below the limiting plug, the limiting plug can be pulled out of the notch, the filter plate is taken out to be cleaned, the filter plate is inserted from the notch and plugged into the limiting plug when being installed, the pull handle is loosened after the filter plate is plugged into the notch, and the limiting block is embedded into the limiting groove under the rebound effect of the supporting spring to complete fixation.

Drawings

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is a schematic rear view of the present utility model;

Figure 3 is a schematic view of a partially enlarged structure of figure 1 according to the present utility model,

FIG. 4 is a schematic view of a partially enlarged structure of the present utility model at B in FIG. 1;

fig. 5 is a schematic view of a partial enlarged structure at C in fig. 1 according to the present utility model.

In the figure: 1. a filtering apparatus body; 2. a first filter plate; 3. a first filter aperture; 4. a second filter plate; 5. a second filter aperture; 6. a lower grinding plate; 7. a top lapping plate; 8. a first rotation shaft; 9. a milling roller; 10. a feed inlet; 11. a first bevel gear; 12. a first driving motor; 13. a second rotation shaft; 14. a second bevel gear; 15. a drive sprocket; 16. a chain; 17. a third filter aperture; 18. an eccentric wheel; 19. a coaxial sprocket; 20. a recovery box; 21. a second driving motor; 22. a movable slide block; 23. a movable chute; 24. a support block; 25. a buffer spring; 26. a fixed block; 27. a limit strut; 28. a hydraulic cylinder; 29. a mounting frame; 30. a connecting shaft; 31. a limit plug; 32. a seal ring; 33. a limiting block; 34. a support spring; 35. a support plate; 36. a pull rod; 37. a pull handle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 and 2, the present utility model provides a technical solution: the utility model provides a filtration equipment, including filtration equipment main part 1, first filter 2 and roller 9, the left side at filtration equipment main part 1 top is provided with feed inlet 10, the inside left and right sides of feed inlet 10 all is provided with roller 9, the input of left side roller 9 is provided with second driving motor 21, second driving motor 21 and left side roller 9 fixed connection, two rollers 9 meshing are connected, through the effect of second driving motor 21, left side roller 9 drives right side roller 9 rotation, can be with the preliminary grinding of great solid in the cosmetic raw materials that gets into feed inlet 10, grind after convenient, raise the efficiency.

As shown in fig. 1 and 4, further, the middle of the top of the main body 1 of the filtering device is provided with the first driving motor 12, the output end of the first driving motor 12 is provided with the second rotating shaft 13, the lower part of the second rotating shaft 13 is provided with the second bevel gear 14, the lower part of the second bevel gear 14 is provided with the mounting frame 29, the inside of the mounting frame 29 is provided with the hydraulic cylinder 28, the extending end of the hydraulic cylinder 28 is provided with the connecting shaft 30, the lower part of the connecting shaft 30 is provided with the upper grinding plate 7, the first driving motor 12 is fixedly connected with the second rotating shaft 13, the second rotating shaft 13 is fixedly connected with the mounting frame 29, the mounting frame 29 is fixedly connected with the hydraulic cylinder 28, the hydraulic cylinder 28 is fixedly connected with the connecting shaft 30, the connecting shaft 30 is fixedly connected with the upper grinding plate 7, the vertical position of the connecting shaft 30 and the upper grinding plate 7 can be changed through the action of the hydraulic cylinder 28, the upper grinding plate 7 is moved upwards, the cosmetic raw materials fall onto the lower grinding plate 6, the upper grinding plate 7 is moved downwards, the subsequent grinding raw materials are extruded, the subsequent grinding is enabled to be more efficient, the powder raw materials are driven to rotate through the first rotating shaft 12 and the first rotating shaft 29 and the lower grinding plate 13 to be fixedly connected with the first rotating shaft 17, the first rotating shaft is fixedly connected with the lower grinding plate 17, fine powder raw materials can be driven by the first rotating plate 17, and the fine powder can be ground through the first rotating plate and the first rotating plate 17 and the first rotating plate is fixedly connected with the first rotating plate 3 through the first rotating plate 3.

As shown in fig. 1 and 3, further, the left and right sides of the second bevel gear 14 are both provided with a first bevel gear 11, one side of the first bevel gear 11 away from the second bevel gear 14 is provided with a first rotating shaft 8, one side of the first rotating shaft 8 away from the second bevel gear 14 is provided with a driving sprocket 15, the lower part of the driving sprocket 15 is provided with a coaxial sprocket 19, the outside of the driving sprocket 15 and the coaxial sprocket 19 is sleeved with a chain 16, one side of the coaxial sprocket 19 close to the inner wall of the filter equipment main body 1 is provided with an eccentric wheel 18, the left and right sides of the lower parts of the first filter plate 2 and the second filter plate 4 are both provided with a supporting block 24, the lower part of the supporting block 24 is provided with a limiting support rod 27, the upper part of the limiting support rod 27 is sleeved with a buffer spring 25, the lower part of the buffer spring 25 is provided with a fixed block 26, one side of the supporting block 24 close to the inner wall of the filter equipment main body 1 is provided with a movable slide block 22, the outside of the movable slide block 22 is sleeved with a movable slide groove 23, a second bevel gear 14 is meshed with the first bevel gear 11, the first bevel gear 11 is fixedly connected with a first rotating shaft 8, the first rotating shaft 8 is fixedly connected with a driving sprocket 15, the driving sprocket 15 and a coaxial sprocket 19 are in chain transmission through a chain 16, the coaxial sprocket 19 is fixedly connected with an eccentric wheel 18, the first filter plate 2 and the second filter plate 4 are both in partial contact with a supporting block 24, the supporting block 24 is fixedly connected with a limiting support rod 27, the limiting support rod 27 penetrates through the buffer spring 25 and the inside of a fixed block 26, the supporting block 24 is fixedly connected with the movable slide block 22, the movable slide block 22 is in partial adaptation with the movable slide groove 23, the second bevel gear 14 can be driven to rotate through a second rotating shaft 13 under the action of a first driving motor 12, the first bevel gear 11 can be driven to rotate, and drive the second bevel gear 14 through first axis of rotation 8 and drive coaxial sprocket 19 through chain 16 and rotate to drive eccentric wheel 18 synchronous rotation, make its second filter 4 of below constantly promote, and make reciprocating vibration, and act on supporting shoe 24 and buffer spring 25 of second filter 4 below with thrust, limit movable slider 22's moving track cooperates movable spout 23, buffer spring 25 provides buffering support for second filter 4, simultaneously, limit strut 27 of second filter 4 below is reciprocating vibration, provide effort to first filter 2, make first filter 2 reciprocating vibration, buffer spring 25 provides buffering support for it, make the cosmetics raw materials after filtering finer and more, also promoted filtration efficiency.

As shown in fig. 1, further, the upper part inside the filtering apparatus main body 1 is provided with a lower grinding plate 6, the inside of the lower grinding plate 6 is provided with a plurality of third filtering holes 17, the lower part of the lower grinding plate 6 is provided with a second filtering plate 4, the inside of the second filtering plate 4 is provided with a plurality of second filtering holes 5, the lower part of the second filtering plate 4 is provided with a first filtering plate 2, the inside of the first filtering plate 2 is provided with a plurality of first filtering holes 3, the lower part of the first filtering plate 2 is provided with a recycling box 20, the apertures of the third filtering holes 17, the second filtering holes 5 and the first filtering holes 3 from top to bottom are sequentially decreased, the third filtering holes 17 of the lower grinding plate 6, the second filtering holes 5 of the second filtering plate 4 and the first filtering holes 3 of the first filtering plate 2 sequentially provide filtering treatment for cosmetic raw materials, and larger particles are continuously ground or intercepted above the filtering plates, and the repeatedly filtered cosmetic raw materials finally fall into the recycling box 20.

As shown in fig. 1, further, the right sides of the first filter plate 2 and the second filter plate 4 are provided with notches, a limiting plug 31 is embedded in the notches, a sealing ring 32 is sleeved on the left side of the limiting plug 31, a supporting plate 35 is arranged on the right side below the limiting plug 31, a pull handle 37 is arranged below the supporting plate 35, a pull rod 36 is arranged above the pull handle 37, a supporting spring 34 is sleeved above the pull rod 36, a limiting block 33 is arranged above the supporting spring 34, the limiting plug 31 is fixedly adhered to the sealing ring 32, the pull handle 37 is fixedly connected with the pull rod 36, the pull rod 36 is fixedly connected with the limiting block 33, the pull rod 36 penetrates through the supporting spring 34 and the inside of the supporting plate 35, when the filter plate needs cleaning, the pull rod 36 moves downwards and drives the limiting block 33 to move downwards, the supporting spring 34 is compressed, the limiting block 33 is far away from a limiting groove formed below the limiting plug 31, the limiting plug 31 can be pulled out of a notch, the filter plate is taken out for cleaning, during installation, the filter plate is inserted from the notch and then plugged into the limiting plug 31, the pull handle 37 is loosened after the filter plate is loosened, the limiting block 33 is embedded into the limiting groove under the rebound effect of the supporting spring 34, fixation is completed, the sealing ring 32 and the notch are tightly attached to each other, the cosmetic raw material inside the filter equipment main body 1 can be prevented from leaking out in the filtering process, internal raw material pollution or waste is caused, the structure is convenient for cleaning the filter plate, the filter plate is prevented from being blocked, and the filtering effect is affected.

Working principle: firstly, the cosmetic raw material is fed from the feed inlet 10, the left grinding roller 9 drives the right grinding roller 9 to rotate under the action of the second driving motor 21, larger solids in the cosmetic raw material entering the feed inlet 10 can be primarily ground, grinding is convenient later, efficiency is improved, then under the action of the hydraulic cylinder 28, the vertical positions of the connecting shaft 30 and the upper grinding plate 7 can be changed, the upper grinding plate 7 is moved upwards, the cosmetic raw material falls onto the lower grinding plate 6, the upper grinding plate 7 is moved downwards, the cosmetic raw material is extruded, the subsequent grinding is more efficient, the powder quality is finer, then under the action of the first driving motor 12, the second rotating shaft 13 drives the mounting frame 29 and the hydraulic cylinder 28 arranged in the mounting frame to rotate, the upper grinding plate 7 fixedly connected with the connecting shaft 30 is driven to rotate, the cosmetic raw material on the lower grinding plate 6 can be ground into fine powder, then the filter is filtered and falls down through the third filter hole 17, the second bevel gear 14 is driven to rotate through the second rotating shaft 13 under the action of the first driving motor 12, the first bevel gear 11 is driven to rotate, the second bevel gear 14 is driven to rotate through the first rotating shaft 8, the coaxial chain wheel 19 is driven to rotate through the chain 16, the eccentric wheel 18 is driven to synchronously rotate, the second filter plate 4 below is continuously pushed to vibrate in a reciprocating manner, the pushing force acts on the supporting block 24 and the buffer spring 25 below the second filter plate 4, the moving track of the movable sliding block 22 is limited by the matching movable sliding groove 23, the buffer spring 25 provides buffer support for the second filter plate 4, meanwhile, the limiting support rod 27 below the second filter plate 4 performs reciprocating vibration to provide acting force for the first filter plate 2, so that the first filter plate 2 performs reciprocating vibration, the buffer spring 25 provides a buffer support for the filtered cosmetic raw material, so that the filtering efficiency is improved, the third filtering holes 17 of the lower grinding plate 6, the second filtering holes 5 of the second filtering plate 4 and the first filtering holes 3 of the first filtering plate 2 sequentially provide filtering treatment for the cosmetic raw material, larger particles are continuously ground by the grinding plate or are intercepted above the filtering plates, and the repeatedly filtered cosmetic raw material finally falls into the recycling box 20.

The filter screen can be blocked in long-time filtration, need wash, downward pulling pull handle 37 for pull rod 36 moves down, and drive stopper 33 to move down, compress supporting spring 34, make stopper 33 keep away from the spacing groove of seting up in spacing stopper 31 below, can pull out the notch with spacing stopper 31, and take out the filter and wash, during the installation, insert the filter from the notch, plug into spacing stopper 31 again, loosen pull handle 37 afterwards, under supporting spring 34's resilience effect, stopper 33 embedding spacing groove, accomplish fixedly, wherein seal ring 32 and notch closely laminate, can avoid the inside cosmetic raw materials of filtration equipment main part 1 to leak at filterable in-process, cause inside raw materials pollution or extravagant, this simple structure cleans the filter, prevent the filter from blocking, influence the filter effect.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a filtration equipment, includes filtration equipment main part (1), first filter (2) and milling roller (9), its characterized in that: the left side at filtration equipment main part (1) top is provided with feed inlet (10), the inside left and right sides of feed inlet (10) all is provided with milling roller (9), and the left side milling roller (9)'s input is provided with second driving motor (21), the centre at filtration equipment main part (1) top is provided with first driving motor (12), the output of first driving motor (12) is provided with second axis of rotation (13), the below of second axis of rotation (13) is provided with second conical gear (14), the below of second conical gear (14) is provided with mounting frame (29), the inside of mounting frame (29) is provided with hydraulic cylinder (28), the extension end of hydraulic cylinder (28) is provided with connecting axle (30), the below of connecting axle (30) is provided with grinding plate (7), the left and right sides of second conical gear (14) all is provided with first conical gear (11), first conical gear (11) keep away from first conical gear (14) and are provided with driving sprocket (15), the coaxial driving axle (15) of driving sprocket (15) are kept away from to one side of first conical gear (14), the outside cover of driving sprocket (15) and coaxial sprocket (19) is equipped with chain (16), one side that coaxial sprocket (19) are close to filtration equipment main part (1) inner wall is provided with eccentric wheel (18), the inside top of filtration equipment main part (1) is provided with down grinds board (6), a plurality of third filtration pore (17) have been seted up to the inside of grinding board (6) down, the below of grinding board (6) is provided with second filter plate (4), a plurality of second filtration pore (5) have been seted up to the inside of second filter plate (4), the below of second filter plate (4) is provided with first filter plate (2), a plurality of first filtration pore (3) have been seted up to the inside of first filter plate (2), the below of first filter plate (2) is provided with recovery box (20).

2. A filter device according to claim 1, characterized in that: the second driving motor (21) is fixedly connected with the left material grinding roller (9), and the two material grinding rollers (9) are in meshed connection.

3. A filter device according to claim 1, characterized in that: the first driving motor (12) is fixedly connected with the second rotating shaft (13), the second rotating shaft (13) is fixedly connected with the mounting frame (29), the mounting frame (29) is fixedly connected with the hydraulic oil cylinder (28), the hydraulic oil cylinder (28) is fixedly connected with the connecting shaft (30), and the connecting shaft (30) is fixedly connected with the upper grinding plate (7).

4. A filter device according to claim 1, characterized in that: the second bevel gear (14) is meshed with the first bevel gear (11), the first bevel gear (11) is fixedly connected with the first rotating shaft (8), the first rotating shaft (8) is fixedly connected with the driving sprocket (15), the driving sprocket (15) and the coaxial sprocket (19) are in chain transmission through a chain (16), and the coaxial sprocket (19) is fixedly connected with the eccentric wheel (18).

5. A filter device according to claim 1, characterized in that: the filter is characterized in that supporting blocks (24) are arranged on the left side and the right side of the lower portion of the first filter plate (2) and the lower portion of the second filter plate (4), limiting supporting rods (27) are arranged below the supporting blocks (24), buffer springs (25) are sleeved above the limiting supporting rods (27), fixed blocks (26) are arranged below the buffer springs (25), movable sliding blocks (22) are arranged on one side, close to the inner wall of the filter equipment main body (1), of the supporting blocks (24), and movable sliding grooves (23) are formed in the outer portion of the movable sliding blocks (22) in a sleeved mode.

6. A filter apparatus as claimed in claim 5, wherein: the first filter plate (2) and the second filter plate (4) are in local contact with the supporting blocks (24), the supporting blocks (24) are fixedly connected with the limiting supporting rods (27), the limiting supporting rods (27) penetrate through the buffer springs (25) and the inside of the fixed blocks (26), the supporting blocks (24) are fixedly connected with the movable sliding blocks (22), and the movable sliding blocks (22) are in local fit with the movable sliding grooves (23).

7. A filter device according to claim 1, characterized in that: the apertures of the third filter hole (17), the second filter hole (5) and the first filter hole (3) are gradually decreased from top to bottom.

8. A filter device according to claim 1, characterized in that: notch has all been seted up on the right side of first filter (2) and second filter (4), the inside embedding of notch has stopper (31), the left side cover of stopper (31) is equipped with sealing ring (32), the right side of stopper (31) below is provided with backup pad (35), the below of backup pad (35) is provided with pull handle (37), the top of pull handle (37) is provided with pull rod (36), the top cover of pull rod (36) is equipped with supporting spring (34), the top of supporting spring (34) is provided with stopper (33).

9. A filter device according to claim 8, wherein: the limiting plug (31) is fixedly bonded with the sealing ring (32).

10. A filter device according to claim 8, wherein: the pull handle (37) is fixedly connected with the pull rod (36), the pull rod (36) is fixedly connected with the limiting block (33), and the pull rod (36) penetrates through the supporting spring (34) and the supporting plate (35).