CN212731306U

CN212731306U - Plasma filter device

Info

Publication number: CN212731306U
Application number: CN202021370139.2U
Authority: CN
Inventors: 刘余江; 张海梦; 张建璀; 张宝献; 滕世超; 孟丽丽
Original assignee: Hualan Biological Engineering Co ltd; Hualan Gene Engineering Co ltd; HUALAN BIOLOGICAL ENGINEERING (CHONGQING) Inc
Current assignee: Hualan Biological Engineering Co ltd; Hualan Gene Engineering Co ltd; HUALAN BIOLOGICAL ENGINEERING (CHONGQING) Inc
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-03-19
Anticipated expiration: 2030-07-13

Abstract

A plasma filtering device comprises a filtering barrel and a sealing cover for sealing an opening of the filtering barrel, wherein an adjustable wall scraping mechanism is arranged between the filtering barrel and the sealing cover; the adjustable wall scraping mechanism comprises a self-rotating disc and a wall scraping component in sliding connection with the self-rotating disc; the self-rotating disc is connected to the sealing cover through a support column; the scraping wall component comprises a scraping blade for scraping off the plasma cake stuck on the side wall of the filter vat. The problem of the inconvenient inefficiency of scraping of the sticky blood plasma caking on the current filter vat is solved, the filterable efficiency of blood plasma has been improved.

Description

Plasma filter device

Technical Field

The utility model relates to a chemical industry agitator technical field especially relates to a plasma filter equipment.

Background

In a biochemical experiment, in the process of filtering blood plasma, a filter barrel is often adopted for centrifugal filtration in the prior art. Because the zincic acid needs to be added before plasma is filtered, the acidification is convenient for subsequent tests, and the plasma is not uniformly stirred when the zincic acid is added, so that the plasma is locally contaminated by the too much zincic acid to enable the viscosity of the plasma to be extremely high, and the plasma is very easy to stick to the side wall of the filter barrel, and the filter holes on the filter barrel can be blocked by the somewhat caked plasma, so that the plasma is not fully filtered by the whole filtering device. The traditional method is that the plasma caking on the side wall of the filter vat is brushed off by a manual scraper and a brush at regular time, so that the time is wasted, the filtering efficiency is delayed, and when the size of the filter vat is larger, a lot of inconvenience is brought to experimenters, and therefore the filter device needs to be improved.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides a plasma filter equipment scrapes the processing of falling to pasting the plasma caking at the filter vat lateral wall through the adjustable wall mechanism of scraping that sets up in the filter vat, and can be according to the circle footpath size of filter vat with wherein scrape the wall subassembly and freely adjust, improved the filterable efficiency of plasma.

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

a plasma filtering device comprises a filtering barrel and a sealing cover for sealing an opening of the filtering barrel, wherein an adjustable wall scraping mechanism is arranged between the filtering barrel and the sealing cover; the adjustable wall scraping mechanism comprises a self-rotating disc and a wall scraping component in sliding connection with the self-rotating disc; the self-rotating disc is connected to the sealing cover through a support column; the scraping wall component comprises a scraping blade for scraping off the plasma cake stuck on the side wall of the filter vat.

Further, the wall scraping assembly comprises a sliding groove which is constructed on the self-rotating disc and arranged along the radial direction, a sliding block which slides in the sliding groove, and a supporting arm which is fixed on the sliding block and is used for bearing the scraping blade.

Preferably, the supporting arm is further provided with a buffer unit for buffering stress between the scraping blade and the side wall of the filter vat, and the buffer unit comprises a sliding rod fixed on the supporting arm, a buffer arm connected with the sliding rod in a sliding manner and a spring sleeved on the sliding rod; one end of the spring is abutted against the supporting arm, and the other end of the spring is abutted against the buffering arm.

Furthermore, one end of the buffer arm is sleeved on the slide rod, and the other end of the buffer arm extends to the inside of the filter vat and is connected with the scraping blade through the supporting block.

Preferably, the bottom surface from the carousel is located to the spout, and the open end of spout is equipped with the spacing platform that is used for preventing that the slider from droing from the spout.

Furthermore, a positioning piece is arranged between the inner wall of the sliding chute and the sliding block; the positioning piece comprises a groove constructed on the limiting table and a limiting protruding part fixed on the sliding block and matched with the groove; the recess is a plurality of and arranges along spout length direction equidistance.

Preferably, the device also comprises an auxiliary stirring mechanism, wherein the auxiliary stirring mechanism comprises at least one auxiliary disk which moves circularly around the self-rotating disk and a stirring rod fixed on the auxiliary disk.

Furthermore, the auxiliary stirring mechanism also comprises a rotating arm which is rotatably connected to the supporting column and a connecting rod which is fixed on the rotating arm; the connecting rod is connected to the auxiliary disc in an extending mode and is connected with the auxiliary disc in a rotating mode.

Furthermore, the stirring rod is fixedly connected to the bottom surface of the auxiliary disc and is far away from the center of the auxiliary disc.

Preferably, the rotating disc is a driving gear, and the auxiliary disc is a planetary gear meshed with the driving gear.

The utility model discloses a theory of operation is: the plasma cake stuck on the side wall of the filter barrel is scraped off by utilizing the scraping blade on the adjustable wall scraping mechanism, and the stirring rod of the auxiliary stirring mechanism is arranged to rapidly stir the scraped plasma cake so as to fully blend the plasma cake into the plasma.

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

1. scrape the wall subassembly through sliding the setting on the spinning disk, ensured the cooperation and made the filter vat lateral wall with different size circle footpaths on the plasma caking scrape off. The flexibility and adaptability of the wall scraping assembly is improved.

2. Through the auxiliary disc around making circular motion around the self-rotating disc, just can wind self-rotating disc circumferential rotation when the auxiliary disc rotation, realized that the stirring rod can the plasma caking fully mix with plasma solution, be difficult for making it cake once more, improved the filterable efficiency of plasma.

Drawings

Fig. 1 is a schematic view of the overall structure of a plasma filtering apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic view of the overall structure of the adjustable wall scraping mechanism and the sealing cover according to the embodiment of the present invention.

Fig. 3 is a schematic view of the overall structure of the adjustable wall scraping mechanism and the auxiliary stirring mechanism in the embodiment of the present invention.

Fig. 4 is an enlarged schematic view at a of fig. 3.

Fig. 5 is a sectional view of the inside of the chute according to the embodiment of the present invention.

Reference numerals:

1. a sealing cover; 2. a housing; 20. a filter vat; 21. a base; 28. a drive motor; 29. a support pillar; 3. an adjustable wall scraping mechanism; 30. a wall scraping assembly; 31. a rotating shaft; 32. a self-rotating disc; 33. a chute; 34. a slider; 35. a support arm; 36. a slide bar; 37. a limiting cap; 38. a buffer arm; 340. a limit protrusion; 365. a spring; 380. a support block; 39. scraping a blade; 4. an auxiliary stirring mechanism; 40. a rotating arm; 41. a connecting rod; 42. a sleeve; 44. an auxiliary disc; 45. a stirring rod; 54. a groove; 55. a limiting table; 56. a positioning member; 7. and a buffer unit.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

Referring to fig. 1, 2 and 3, according to the embodiment of the present invention, a plasma filtering apparatus includes a filtering barrel 20 and a sealing cover 1 for sealing the opening of the filtering barrel 20, the filtering holes distributed densely on the side wall of the filtering barrel 20 are provided, the outer casing of the filtering barrel 20 is provided with an open-ended housing 2, the bottom of the filtering barrel 20 is detachably connected with a base 21, the base 21 is provided with an internal motor which can rotate and drive the filtering barrel 20 to generate centrifugal force to make the plasma solution contained in the filtering barrel 20 filter through the filtering holes, when filtering, in order to scrape the plasma caking stuck on the side wall of the filtering barrel 20, an adjustable wall scraping mechanism 3 is provided between the filtering barrel 20 and the sealing cover 1, and the structure and the realization principle of the wall scraping mechanism 3 are explained as follows:

referring to fig. 2 and 3, the adjustable wall scraping mechanism 3 comprises a rotating disk 32 and a wall scraping assembly 30 in sliding connection with the rotating disk 32, wherein the rotating disk 32 is connected to the sealing cover 1 through a supporting column 29; the scraping assembly 30 includes a scraping blade 39 for scraping off plasma cake adhered to the side wall of the filter basket 20. The support column 29 in this embodiment has the following specific modes: the bottom end of the supporting column 29 extends to the self-rotating disc 32 and is rotatably connected with the self-rotating disc, and the top end of the supporting column extends to the sealing cover 1. The sealing cover 1 is provided with a driving motor 28, a rotating shaft 31 on the driving motor 28 is sleeved inside the supporting column 29 and is connected to the rotation disc 32 in an extending manner, when the driving motor 28 drives the rotating shaft 31 to rotate, the rotating shaft 31 drives the rotation disc 32 to rotate at the bottom end of the supporting column 29, so that the scraper 39 on the scraping wall assembly 30 rotates along the circumference of the side wall of the filter vat 20, and plasma cakes on the side wall of the filter vat 20 are scraped.

The wall scraping assembly 30 can be provided in several numbers, two wall scraping assemblies 30 are shown in the embodiment, and are symmetrically arranged, and referring to fig. 3 and 4, the wall scraping assembly 30 further includes a sliding slot 33 configured on the self-rotating disk 32 and arranged along the radial direction, a sliding block 34 sliding in the sliding slot 33, and a supporting arm 35 fixed on the sliding block 34 for carrying a scraping blade 39. Due to the existence of the sliding groove 33, the sliding block 34 slides in the sliding groove 33, the circumferential size of the scraping blade 39 on the supporting arm 35 rotating along with the rotating disc 32 is changed, and the wall scraping plasma agglomeration operation on the side wall of the filter barrel 20 with different circular diameters is realized. The specific structure of the runner 33 is described below:

referring to fig. 5, as another embodiment of the present invention, the sliding groove 33 is disposed on the bottom surface of the rotation plate 32, the opening of the sliding groove 33 faces downward, a limiting platform 55 is disposed at the opening end of the sliding groove 33 for preventing the sliding block 34 from falling off from the sliding groove 33, and the limiting platform 55 is symmetrically disposed at both sides of the opening end in this embodiment.

When the rotation disc 32 rotates, a centrifugal force is generated, and in order to position the sliding block 34, a positioning part 56 for controlling the positioning of the sliding block 34 is arranged between the inner wall of the sliding chute 33 and the sliding block 34:

the positioning member 56 comprises a groove 54 configured on the limiting table 55 and a limiting protrusion 340 fixed on the sliding block 34 and matched with the groove 54; the grooves 54 are arranged at equal intervals along the length direction of the sliding groove 33, and the limiting protrusions 340 are inserted into different grooves 54, so that the distance between the wall scraping component 30 and the side wall of the filter vat 20 is adjustable. The using process is as follows: the limiting protruding part 340 and the sliding block 34 are reserved between the groove depth of the sliding groove 33 and the limiting table 55, when the scraping piece 39 needs to be adjusted to adapt to the operation of the inner walls of the containing cavities with different diameters, the supporting arm 35 is manually lifted upwards to move the sliding block 34 to the top wall of the sliding groove 33, so that the limiting protruding part 340 is separated from the original groove 54 and then slides along the direction of the sliding groove 33 until reaching the position required by the scraping piece 39, the supporting arm 35 is loosened at the moment, and the limiting protruding part 340 is re-inserted into a new groove 54 to realize clamping and fixing.

Referring to fig. 4 and 3, as another embodiment of the present invention, a buffer unit 7 for buffering the stress between the wiper 39 and the sidewall of the filter vat 20 is further disposed on the supporting arm 35, and the buffer unit 7 includes a sliding rod 36 fixed on the supporting arm 35, a buffer arm 38 slidably connected to the sliding rod 36, and a spring 365 sleeved on the sliding rod 36; one end of the spring 365 abuts against the supporting arm 35, and the other end abuts against the buffer arm 38; and a limiting cap 37 is sleeved on the sliding rod 36. One end of the buffer arm 38 is sleeved on the sliding rod 36, and the other end extends into the filter vat 20 and is connected with the scraping blade 39 through the supporting block 380. The limiting cap 37 limits the buffer arm 38 from sliding off the sliding rod 36, and during the rotation process of the rotation disc 32, centrifugal force is generated to promote the wiper 39 to generate interaction stress with the side wall of the filter vat 20, so that friction is increased to damage the side wall of the filter vat 20, and the spring 365 can offset part of the stress, thereby protecting the filter vat 20.

After scraping wall subassembly 30 and scraping the plasma caking and fall, in order to avoid making the piece again paste on the inner wall of filter vat 20 again, this device still is equipped with supplementary rabbling mechanism 4 for stir the supplementary rabbling mechanism 4 of dissolving into plasma solution with the plasma caking of scraping.

As another embodiment of the present invention, referring to fig. 4, the auxiliary stirring mechanism 4 includes at least one auxiliary disk 44 that moves circularly around the rotation disk 32 and a stirring rod 45 fixed to the auxiliary disk 44.

As other embodiments of the present invention, the auxiliary stirring mechanism 4 further includes a rotating arm 40 rotatably connected to the supporting column 29 and a connecting rod 41 fixed to the rotating arm 40; in the embodiment, the rotating arm 40 is rotatably connected with the supporting column 29 through a sleeve 42, the middle of the sleeve 42 is provided with a dent sunken into the tube, one end of the rotating arm 40 is rotatably hinged at the dent on the sleeve 42 to realize rotation, the other end of the rotating arm is connected to a connecting rod 41, the connecting rod 41 extends onto an auxiliary disc 44, and the auxiliary disc 44 is rotatably connected with the connecting rod 41 to realize free rotation of the auxiliary disc.

As another embodiment of the present invention, the stirring rod 45 is fixedly connected to the bottom surface of the auxiliary plate 44 and is far away from the center of the auxiliary plate 44, it should be noted that in this embodiment, the rotation plate 32 is a driving gear, the auxiliary plate 44 is a planetary gear engaged with the driving gear, when the driving gear rotates, the planetary gear also moves along with the circumferential direction of the driving gear, and the planetary gear itself rotates, so that the stirring rod 45 can rotate circumferentially in the filter vat 20 under the planetary gear, and the plasma knot in the filter vat 20 is fully stirred and dispersed, so that the plasma knot is not coagulated into pieces, thereby improving the sufficiency and thoroughness of plasma filtration.

Finally, 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 the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A plasma filtration device comprising a filter vat (20) and a sealing lid (1) for closing the opening of the filter vat (20), characterized in that: an adjustable wall scraping mechanism (3) is arranged between the filter barrel (20) and the sealing cover (1);

the adjustable wall scraping mechanism (3) comprises a self-rotating disc (32) and a wall scraping assembly (30) which is connected with the self-rotating disc (32) in a sliding manner;

the self-rotating disc (32) is connected to the sealing cover (1) through a supporting column (29);

the scraping wall component (30) comprises a scraping blade (39) used for scraping off the plasma cake stuck on the side wall of the filter barrel (20).

2. A plasma filtration device according to claim 1, wherein: the wall scraping assembly (30) further comprises a sliding groove (33) which is constructed on the self-rotating disc (32) and arranged along the radial direction, a sliding block (34) which slides in the sliding groove (33), and a supporting arm (35) which is fixed on the sliding block (34) and is used for bearing a scraping blade (39).

3. A plasma filtration device according to claim 2, wherein: the supporting arm (35) is also provided with a buffer unit (7) for buffering the stress between the scraping blade (39) and the inner wall of the filter barrel (20), and the buffer unit (7) comprises a sliding rod (36) fixed on the supporting arm (35), a buffer arm (38) in sliding connection with the sliding rod (36) and a spring (365) sleeved on the sliding rod (36);

one end of the spring (365) is abutted against the supporting arm (35), and the other end of the spring is abutted against the buffer arm (38).

4. A plasma filtration device according to claim 3, wherein: one end of the buffer arm (38) is sleeved on the sliding rod (36), and the other end of the buffer arm extends to the inside of the filter vat (20) and is connected with the scraping blade (39) through the supporting block (380).

5. A plasma filtration device according to claim 4, wherein: the sliding groove (33) is arranged on the bottom surface of the rotating disc (32), and the opening end of the sliding groove (33) is provided with a limiting table (55) used for preventing the sliding block (34) from falling off from the sliding groove (33).

6. A plasma filtration device according to claim 5, wherein: a positioning piece (56) is arranged between the inner wall of the sliding chute (33) and the sliding block (34);

the positioning piece (56) comprises a groove (54) formed on the limiting table (55) and a limiting protrusion (340) which is fixed on the sliding block (34) and is matched with the groove (54);

the grooves (54) are a plurality of and are arranged at equal intervals along the length direction of the sliding groove (33).

7. A plasma filtration device according to claim 1, wherein: the stirring device also comprises an auxiliary stirring mechanism (4), wherein the auxiliary stirring mechanism (4) comprises at least one auxiliary disk (44) which moves around the rotation disk (32) in a circular manner and a stirring rod (45) fixed on the auxiliary disk (44).

8. A plasma filtration device according to claim 7, wherein: the auxiliary stirring mechanism (4) further comprises a rotating arm (40) which is rotatably connected to the supporting column (29) and a connecting rod (41) which is fixed on the rotating arm (40);

the connecting rod (41) is connected to the auxiliary disc (44) in an extending mode and is connected with the auxiliary disc in a rotating mode.

9. A plasma filtration device according to claim 7 or 8, wherein: the stirring rod (45) is fixedly connected to the bottom surface of the auxiliary disc (44) and is far away from the center of the auxiliary disc (44).

10. A plasma filtration device according to claim 7 or 8, wherein: the self-rotating disc (32) is a driving gear, and the auxiliary disc (44) is a planetary gear meshed with the driving gear.