CN215962409U - Multistage filter device - Google Patents

Abstract

The utility model belongs to the field of centrifugal filtration, and particularly discloses a multistage filtration device which comprises a centrifugal tube and a filtration assembly detachably connected in the centrifugal tube, wherein the filtration assembly comprises filtration screens with different multistage filter diameters and a connection ring detachably connected with the centrifugal tube, the filtration screen comprises a connection cylinder and a circular net fixed at the end part of the connection cylinder, one end of the connection cylinder, far away from the circular net, is provided with a first connection part, one end of the connection cylinder, close to the circular net, is provided with a second connection part, and the first connection part and the second connection part of two adjacent filtration screens are detachably matched; the connecting ring is also provided with a second connecting part which is used for connecting and matching with the first connecting part. By adopting the scheme of the utility model, the problem that part of the filter screen is deeply arranged in the centrifugal pipe and is difficult to disassemble during multi-stage filtration can be solved.

Description

Multistage filter device

Technical Field

The utility model belongs to the field of centrifugal filtration, and particularly relates to a multistage filtration device.

Background

Need carry out the degerming or filter the edulcoration to experimental solution to laboratory sample in biology, chemistry experiment often, and some experimental solution is comparatively thick, and the speed through the filter screen is slower when filtering, and is longer with the time spent, consequently adopts the mode of installing the filter screen in the centrifuging tube among the prior art, drives the filter screen through the centrifuging tube in centrifugal process and rotates, and then improves the speed that solution passes through the filter screen. In the prior art, the filter screen is usually directly screwed on the inner wall of the centrifugal pipe, and when the multi-stage filtration is carried out, part of the filter screen is deeply arranged in the centrifugal pipe and is difficult to disassemble and replace.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a multi-stage filtering device, which aims to solve the problem that part of a filter screen is deeply arranged in a centrifugal pipe and is difficult to disassemble during multi-stage filtering.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the multistage filtering device comprises a centrifugal tube and a filtering component detachably connected in the centrifugal tube, wherein the filtering component comprises filtering nets with different multistage filter diameters and connecting rings detachably connected with the centrifugal tube, each filtering net comprises a connecting cylinder and a circular net fixed at the end part of the connecting cylinder, one end of each connecting cylinder, which is far away from the circular net, is provided with a first connecting part, one end of each connecting cylinder, which is close to the circular net, is provided with a second connecting part, and the first connecting part and the second connecting part of two adjacent filtering nets are detachably matched; the connecting ring is also provided with a second connecting part which is used for connecting and matching with the first connecting part.

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

the multistage filter screen can be dismantled the connection in proper order, can connect the filter screen of different diameters as required, realizes the filtration of different demands.

After the multistage filter screen is connected and is accomplished, connect go-between and filter screen, connect the go-between on the centrifuging tube simultaneously, realize the connection of filter screen and centrifuging tube, and the installation of being convenient for is dismantled.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: 1. an end cap; 2. a connecting ring; 3. a handle; 4. centrifuging the tube; 5. an annular groove; 6. a connecting cylinder; 7. a circular net; 8. an annular plate; 9. a sealing plate; 10. buckling; 11. and (6) clamping the hole.

Detailed Description

The utility model is further described in detail below with reference to the accompanying drawings, and specific embodiments are given.

As shown in fig. 1, multistage filter equipment, including centrifuging tube 4 and can dismantle the filtering component who connects in centrifuging tube 4, filtering component includes the different filter screens of multistage filter diameter and is used for can dismantling the go-between 2 of connection with centrifuging tube 4, and go-between 2 terminal surfaces are equipped with and supply 4 tip male ring channels 5 of centrifuging tube, 5 lateral walls of ring channels and 4 outer wall threaded connection of centrifuging tube, 5 inside walls of ring channels and 4 inner walls of centrifuging tube contactless. The outer wall of the connecting ring 2 is fixed with a handle 3, so that a worker can install the connecting ring 2 through the handle 3, the connecting ring 2 is detachably connected with an end cover 1, specifically, the end cover 1 is in threaded connection with the outer wall of the connecting ring 2, and the handle 3 is located below the end cover 1.

The filter screen includes connecting cylinder 6 and fixes at the circular net 7 of 6 tip of connecting cylinder, and 6 external diameters of connecting cylinder are less than centrifuge tube 4's internal diameter, and 6 internal diameters of connecting cylinder equal to the internal diameter of go-between 2. The one end that circular net 7 was kept away from to connecting cylinder 6 is equipped with first connecting portion, and the one end that connecting cylinder 6 is close to circular net 7 is equipped with the second connecting portion, and the cooperation can be dismantled to first connecting portion, the second connecting portion of two adjacent filter screens, also is equipped with on the go-between 2 to be used for connecting complex second connecting portion with first connecting portion. Specifically, combine fig. 2 to show, first connecting portion, second connecting portion all include annular plate 8, and annular plate 8 is fixed respectively at the tip of connecting cylinder 6 or the inner wall of ring channel 5, and the external diameter of annular plate 8 is less than centrifuging tube 4's internal diameter, and annular plate 8 does not contact with 4 inner walls of centrifuging tube during then the installation, the installation of being more convenient for. First connecting portion still includes a plurality of buckles 10 of fixing on annular plate 8 along the circumference equipartition, and is concrete, buckle 10 is including fixing the spring steel sheet on annular plate 8, the crooked elastic component that forms the n style of calligraphy downwards in spring steel sheet upper end, the spring steel sheet is the steel that has certain elastic deformation ability among the prior art, second connecting portion still including offering on annular plate 8 and be used for with buckle 10 complex card hole 11, through pressing elastic component, make spring steel sheet upper end can pass card hole 11, no longer press after the elastic component, the card is released on card hole 11 in the spring steel sheet upper end. First connecting portion still including fixing on annular plate 8 and be annular closing plate 9, it has sealed the pad to bond on the closing plate 9, the sealed pad specifically chooses for use the rubber pad, closing plate 9 is located buckle 10's inboard, second connecting portion still include the through-hole of seting up on annular plate 8 and being used for inserting closing plate 9, closing plate 9 inserts the back in the through-hole, sealed pad and through-hole inner wall contact, carry out certain sealed to the connection between the adjacent annular plate 8 on the one hand, on the other hand passes through the friction of sealed pad, supplementary fixed adjacent annular plate 8, avoid only the connection through buckle 10, in the rotation process, there is rocking between the adjacent filter screen.

During the specific use, the connection can be dismantled from big to little according to the filtration diameter to multistage filter screen, be about to connect the first connecting portion and the second connecting portion of adjacent filter screen, can connect the filter screen of required filtration diameter as required, the connection of multistage filter screen is accomplished the back, connect the first connecting portion of the biggest filter screen of second connecting portion and the filtration diameter on go-between 2, insert the filter screen in centrifuging tube 4, make centrifuging tube 4's tip insert in ring channel 5, with go-between 2 threaded connection on centrifuging tube 4, the solution that will need to filter passes through go-between 2's opening injection, then twist upper end cover 1, when twisting end cover 1, the accessible is with fixed handle 3 with the hand, avoid go-between 2 to rotate along with it, the installation is accomplished the back, through placing in centrifuge or other centrifugal equipment with centrifuge tube 4, carry out the centrifugal filtration motion.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims (8)

1. Multistage filter equipment, including centrifuging tube and can dismantle the filtering component who connects in the centrifuging tube, its characterized in that: the filter assembly comprises filter screens with different multistage filter diameters and a connecting ring for detachable connection with a centrifuge tube, each filter screen comprises a connecting cylinder and a circular net fixed at the end of the connecting cylinder, a first connecting part is arranged at one end of the connecting cylinder, which is far away from the circular net, a second connecting part is arranged at one end of the connecting cylinder, which is close to the circular net, and the first connecting part and the second connecting part of two adjacent filter screens are detachably matched; the connecting ring is also provided with a second connecting part which is used for connecting and matching with the first connecting part.

2. The multi-stage filtration device of claim 1, wherein: the go-between terminal surface is equipped with the annular groove that supplies centrifuging tube tip male, annular groove inside wall and centrifuging tube tip threaded connection.

3. The multi-stage filtration device of claim 2, wherein: and a handle is fixed on the outer wall of the connecting ring.

4. The multi-stage filtration device of claim 2, wherein: the connecting ring is detachably connected with an end cover.

5. The multi-stage filtration device of claim 1, wherein: first connecting portion, second connecting portion all include the annular plate, and first connecting portion still include a plurality of buckles of fixing on the annular plate along the circumference equipartition, and second connecting portion still including offer on the annular plate and be used for with buckle complex card hole.

6. The multi-stage filtration device of claim 5, wherein: the outer diameter of the annular plate is smaller than the inner diameter of the centrifugal pipe.

7. The multi-stage filtration device of claim 5, wherein: the first connecting portion further comprises a sealing plate which is fixed on the annular plate and is annular, the sealing plate is located on the inner side of the buckle, and the second connecting portion further comprises a through hole which is formed in the annular plate and used for inserting the sealing plate.

8. The multi-stage filtration device of claim 7, wherein: and a sealing gasket is bonded on the sealing plate.

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