CN215655752U

CN215655752U - Serum separation test tube set for stem cells

Info

Publication number: CN215655752U
Application number: CN202121785216.5U
Authority: CN
Inventors: 杨兵
Original assignee: Frontier Biotechnology Zhejiang Co ltd
Current assignee: Frontier Biotechnology Zhejiang Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-01-28
Anticipated expiration: 2031-07-30

Abstract

The utility model relates to the technical field of stem cell equipment, and discloses a serum separation test tube set for stem cells, the technical scheme is that the centrifugal machine comprises a centrifugal machine, a rotatable mounting disc is arranged in the centrifugal machine, when the centrifugal machine works, the sleeve deflects along the hinge of the sleeve under the action of centrifugal force, the magnitude of the centrifugal force is related to the centrifugal radius, a movable balancing weight is arranged in the sleeve, at the moment, the balancing weight is driven to move in the sleeve by the power source, the distance between the balancing weight and the mounting disc is adjusted, thus the centrifugal force on each sleeve can be adjusted, therefore, in the process of using the centrifuge each time, the number and the weight of the test tubes in each centrifugal unit do not need to be considered independently, and only the positions of the balancing weights in the centrifugal units with opposite positions need to be adjusted, so that the centrifugal forces of the two centrifugal units are consistent.

Description

Serum separation test tube set for stem cells

Technical Field

The utility model relates to the technical field of stem cell equipment, in particular to a serum separation test tube set for stem cells.

Background

The test tube separator is a multifunctional liquid-solid decanter centrifuge for laboratory chemistry, and generally performs centrifugal separation on a test tube group directly, the existing centrifuge is generally provided with a plurality of centrifugal units for fixing the test tube group, however, the centrifugal units which are opposite in position in the centrifugation process may cause shaking of the whole centrifuge due to the difference of gravity of the centrifugal units, so that the centrifugal separation effect is influenced, and the service life of the centrifuge is shortened under long-term trial use.

SUMMERY OF THE UTILITY MODEL

In view of the shortcomings of the prior art, it is an object of the present invention to provide a serum separation tube set for stem cells, which overcomes the above-mentioned shortcomings of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a serum separation test tube group for stem cell, includes centrifuge, install the mounting disc that can rotate in the centrifuge, the mounting disc disposes a plurality of centrifugal unit, its characterized in that: the centrifugal unit comprises a sleeve and a cover body, the sleeve and the cover body are detachably connected, and the mounting disc is hinged with the outer side surface of the sleeve;

the fixing assembly is arranged on the cover body and provides a locking force acting on the test tube, the length and the diameter of the test tube for separating stem cells are different, and the fixing assembly is arranged on the cover body, so that when the test tubes with different sizes are fixed, only different cover bodies need to be replaced;

the balance weight assembly comprises a power source and a balance weight block, the power source is arranged at one side of the centrifuge, the balance weight block is arranged in the centrifuge, the power source provides power acting on the balance weight block so as to enable the balance weight block to be close to or far away from the cover body, when the centrifuge works, the sleeve can deflect along the hinged part of the sleeve under the action of centrifugal force, the centrifugal force is related to the centrifugal radius, the movable balance weight block is arranged in the sleeve, the balance weight block is driven to move in the sleeve through the power source at the moment, the distance between the balance weight block and the mounting disc is adjusted, and therefore the centrifugal force on each sleeve can be adjusted, and the quantity and the weight of test tubes in each centrifugal unit do not need to be considered separately in each process of using the centrifuge, the positions of the balancing weights in the centrifugal units with opposite positions are only required to be adjusted, so that the centrifugal forces of the two centrifugal units are consistent.

As a further improvement of the utility model, an inner groove is annularly arranged in the sleeve, the balancing weight is annularly arranged and matched with the inner groove in shape, the inner groove is connected with the balancing weight in a sliding manner, and the weight distribution of the annularly arranged balancing weight is uniformly distributed on the sleeve, so that the sleeve can stably rotate in the centrifugal rotation process.

As a further improvement of the utility model, the bottom of the sleeve is provided with a driving cavity, the inner groove is arranged at the top of the driving cavity and is communicated with the driving cavity, the output end of the power source extends into the driving cavity, the driving part comprises a gearwheel, at least one lead screw and at least one pinion, the gearwheel is arranged at the output end of the power source positioned in the driving cavity, one end of each of the lead screws is rotatably arranged at the bottom of the driving cavity, the other end of each of the lead screws extends into the inner groove and is rotatably connected with the inner wall of the top of the inner groove, the pinions are respectively arranged on the lead screws and are meshed with the gearwheel, and the arrangement of the lead screws and the pinions can provide thrust of a plurality of parts for the bottom of the annular counterweight block, so that when the counterweight block is driven to move, the situation that the balancing weight block and the inner groove are blocked is not easy to happen, the lead screw is driven to rotate in a manner that the pinion is meshed with the bull gear, the rotating angles and the rotating speeds of the lead screws can be guaranteed to be consistent all the time, and the moving stability of the balancing weight block is further guaranteed.

As a further improvement of the utility model, a fixed rod is arranged at the center of one side of the cover body facing the sleeve, the cover body is provided with a plurality of mounting holes in an annular array by taking the axis of the fixed rods as the center, the mounting holes can act on the locking force of the end cover at the top of the test tube, the fixed rods are sleeved with fixed rings, the fixing ring is provided with a plurality of through holes which are in one-to-one correspondence with the mounting holes and can provide limiting force acting on the radial direction of the test tube, when the test tube is placed in the mounting hole, the sealing cover at the top of the test tube is clamped in the mounting hole because the diameter of the sealing cover is larger than that of the test tube, the function of the fixing ring can prevent the collision among a plurality of test tubes due to really less limiting force in the process of centrifugation, this may not only result in the tube cap being detached from the test tube, but also in the test tube breaking.

As a further improvement of the utility model, a longitudinal sliding groove is arranged in the fixed rod along the axial direction, a longitudinal sliding block is arranged in the longitudinal sliding groove in a sliding manner, a spring is connected between the longitudinal sliding block and the longitudinal sliding groove, a plurality of sliding ways penetrating through the fixed rod are arranged in the longitudinal sliding groove along the radial direction of the fixed rod, a plurality of trays are arranged outside the fixed rod, the positions of the trays correspond to the positions of the mounting holes one by one, one sides of the trays respectively extend into the sliding ways to be fixedly connected with the longitudinal sliding block, the spring provides elastic force acting on the longitudinal sliding block in the vertical direction so as to enable the trays to bear test tubes, a thrust force can be applied to the bottom of the test tubes through the arrangement of the trays, a part of centrifugal force acting on the test tube cover in the centrifugal process is reduced, and the separation of the test tube cover and the test tubes is effectively prevented, and through the spring with indulge the setting of slider, can satisfy the test tube homoenergetic of different length effectively by the tray butt.

As a further improvement of the utility model, the slideway is provided with a plurality of longitudinal sliding rods along the axial direction of the fixed rod, a plurality of trays are connected with the longitudinal sliding rods in a one-to-one sliding manner, and the arrangement of the longitudinal sliding rods can prevent the tray from deflecting due to the fact that test tubes are abutted on the trays.

As a further improvement of the present invention, magnets are disposed on both an end of the fixing rod away from the cover and an inner wall of the sleeve, and the magnets can provide attraction force to fix the end of the fixing rod away from the cover in the sleeve, so that the rigidity of the fixing rod is indirectly improved to a certain extent, and the problem of the fixing rod shifting does not occur during the rotation of the fixing rod.

The utility model has the beneficial effects that: when the centrifugal machine works, the sleeve can deflect along the hinged position of the sleeve under the action of centrifugal force, the centrifugal force is related to the centrifugal radius, a movable balancing weight is arranged in the sleeve, the balancing weight is driven to move in the sleeve through a power source at the moment, and the distance between the balancing weight and a mounting disc is adjusted, so that the centrifugal force on each sleeve can be adjusted, and therefore, in the process of using the centrifugal machine each time, the quantity and the weight in a test tube in each centrifugal unit do not need to be considered independently, and only the position of the balancing weight in the centrifugal unit with the opposite position needs to be adjusted, so that the centrifugal forces of the two centrifugal units are consistent.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic diagram of the internal structure of FIG. 1 according to the present invention;

FIG. 3 is a schematic diagram of the centrifugal unit of FIG. 2 according to the present invention;

FIG. 4 is a front view of the internal structure of the sleeve of FIG. 3 in accordance with the present invention;

fig. 5 is a sectional view taken along the line a-a in fig. 4 according to the present invention.

Reference numerals: 1. a centrifuge; 11. mounting a disc; 2. a centrifugal unit; 3. a sleeve; 31. An inner tank; 32. a drive chamber; 4. a cover body; 41. mounting holes; 5. a counterweight assembly; 51. a balancing weight; 52. a power source; 53. a drive section; 54. a bull gear; 55. a pinion gear; 56. a lead screw; 6. a fixing assembly; 61. fixing the rod; 62. a fixing ring; 63. a through hole; 64. a tray; 65. a longitudinal slide block; 66. a spring; 67. a slideway; 68. a longitudinal chute; 69. a longitudinal slide bar; 7. And a magnet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 to 3, a serum separation tube set for stem cells according to the present embodiment includes a centrifuge 1, a rotatable mounting plate 11 is installed in the centrifuge 1, and the mounting plate 11 is configured with a plurality of centrifuge units 2, and is characterized in that: the centrifugal unit 2 comprises a sleeve 3 and a cover body 4, the sleeve 3 and the cover body 4 are detachably connected, for the detachable connection, clamping, screwing and other modes can be used for connection, the stability between the cover body 4 and the sleeve 3 in the centrifugal process is only required to be met, and the mounting disc 11 is hinged with the outer side surface of the sleeve 3;

the fixing component 6 is arranged on the cover body 4, the fixing component 6 provides a locking force acting on the test tube, the length and the diameter of the test tube for separating stem cells are usually different, the fixing component 6 is arranged on the cover body 4, and therefore when the test tubes with different sizes are fixed, only the cover body 4 is required to be replaced;

a weight assembly 5, the weight assembly 5 includes a power source 52 (including but not limited to a motor) and a weight 51, for the weight 51, copper, iron or some alloy with a larger density can be used to provide enough centrifugal force adjustment under a limited sliding distance, the power source 52 is disposed at one side of the centrifuge 1, the weight 51 is disposed in the centrifuge 1, the power source 52 provides power acting on the weight 51 to make the weight 51 close to or far away from the cover 4, the sleeve 3 will deflect along the hinge of the sleeve 3 under the action of centrifugal force when the centrifuge 1 works, the magnitude of the centrifugal force is known to be related to the centrifugal radius, a movable weight 51 is disposed in the sleeve 3 in the utility model, and the weight 51 is driven to move in the sleeve 3 by the power source 52, the distance between the balancing weight 51 and the mounting plate 11 is adjusted, so that the centrifugal force on each sleeve 3 can be adjusted, and therefore, in the process of using the centrifuge 1 each time, the number and the weight of the test tubes in each centrifugal unit 2 do not need to be considered independently, and only the position of the balancing weight 51 in the centrifugal unit 2 with opposite positions needs to be adjusted, so that the centrifugal forces of the two centrifugal units 2 are consistent.

Referring to fig. 4, an inner groove 31 is annularly arranged in the sleeve 3, the weight block 51 is annularly arranged and matched with the inner groove 31 in shape, the inner groove 31 is slidably connected with the weight block 51, and the weight distribution of the annularly arranged weight block 51 is uniformly distributed on the sleeve 3, so that the sleeve 3 can stably rotate during the centrifugal rotation of the sleeve 3.

Referring to fig. 4, a driving cavity 32 is provided at the bottom of the sleeve 3, the inner groove 31 is provided at the top of the driving cavity 32 and is communicated with the driving cavity 32, an output end of the power source 52 extends into the driving cavity 32, the driving part 53 includes a large gear 54, at least one lead screw 56 and at least one pinion 55, the large gear 54 is mounted at an output end of the power source 52 located in the driving cavity 32, one end of each of the plurality of lead screws 56 is rotatably mounted at the bottom of the driving cavity 32, the other end of each of the plurality of lead screws 56 extends into the inner groove 31 and is rotatably connected with an inner wall at the top of the inner groove 31, the plurality of pinions 55 are respectively mounted on the plurality of lead screws 56, the plurality of pinions 55 are respectively engaged with the large gear 54, and thrust at a plurality of positions can be provided at the bottom of the annular counterweight 51 through the plurality of lead screws 56 and the plurality of pinions 55, when the balancing weight 51 is driven to move, the situation that the balancing weight 51 and the inner groove 31 are blocked is not easy to occur, and the lead screw 56 is driven to rotate in a manner that the pinion 55 is meshed with the bull gear 54, so that the rotating angles and the rotating speeds of the lead screws 56 can be ensured to be consistent all the time, and the moving stability of the balancing weight 51 is further ensured.

Referring to fig. 4, a fixing rod 61 is disposed at a center of one side of the cover 4 facing the sleeve 3, a plurality of mounting holes 41 are disposed in the cover 4 in an annular array with an axis of the fixing rod 61 as a center, the mounting holes 41 can act on a locking force of an end cover at the top of a test tube, a fixing ring 62 is sleeved on the fixing rod 61, a plurality of through holes 63 are disposed on the fixing ring 62, the through holes 63 correspond to the mounting holes 41 one by one, the through holes 63 can provide a limiting force acting on the radial direction of the test tube, when the test tube is placed into the mounting hole 41, a sealing cover at the top of the test tube is clamped in the mounting hole 41 due to a diameter larger than the test tube, and the fixing ring 62 can prevent collision among a plurality of test tubes due to a really small limiting force during centrifugation, which not only the test tube cover may be separated from the test tube, but also may lead to a rupture of the test tube.

Referring to fig. 4, a longitudinal sliding groove 68 is formed in the fixing rod 61 along the axis direction, a longitudinal sliding block 65 is slidably mounted in the longitudinal sliding groove 68, a spring 66 is connected between the longitudinal sliding block 65 and the longitudinal sliding groove 68, the longitudinal sliding groove 68 is formed in the radial direction of the fixing rod 61 and is provided with a plurality of sliding ways 67 penetrating through the fixing rod 61, a plurality of trays 64 are arranged on the outer side of the fixing rod 61, the positions of the trays 64 correspond to the positions of the mounting holes 41 one by one, one side of each tray 64 extends into the corresponding sliding way 67 to be fixedly connected with the longitudinal sliding block 65, the spring 66 provides vertical upward elastic force acting on the longitudinal sliding block 65, so that the trays 64 can bear test tubes, and by means of the arrangement of the trays 64, the thrust at the bottom of the test tubes can reduce the centrifugal force partially acting on the test tube cover in the centrifugal process, prevent test tube lid and test tube separation effectively to through spring 66 with indulge slider 65's setting, can satisfy the test tube homoenergetic of different length effectively by tray 64 butt.

In one embodiment, the top of the tray 64 is concave, and the concave part is matched with the shape of the bottom of the test tube, so that the test tube can be prevented from being deviated.

Referring to fig. 4, the slide 67 is provided with a plurality of vertical sliding rods 69 along the axial direction of the fixing rod 61, and the tray 64 is connected with the vertical sliding rods 69 in a one-to-one sliding manner, and the vertical sliding rods 69 can prevent the tray 64 from deflecting due to test tubes abutted to the tray 64.

Referring to fig. 4, magnets 7 are disposed at both an end of the fixing rod 61 far away from the cover 4 and an inner wall of the sleeve 3, and the magnets 7 can provide attraction force to fix the end of the fixing rod 61 far away from the cover 4 in the sleeve 3, so that the rigidity of the fixing rod 61 is indirectly improved to a certain extent, and the fixing rod 61 does not shift during the rotation of the fixing rod 61.

The working principle is as follows: when needing centrifugal separation, select earlier according to the size of test tube the lid 4 that mounting hole 41 is close installs on sleeve 3, then put into the test tube in proper order in mounting hole 41 for the test tube can pass the position and correspond in the through-hole 63, then drive tray 64 downstream when test tube bottom and tray 64 butt, adjustment position is relative then balancing weight 51's position in the centrifugal unit 2, so that whole mounting disc 11 keeps balanced, then drive through centrifuge 1 the separation disc rotates, can be to the test tube in the sleeve 3 carries out centrifugal separation.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. A serological separation test tube set for stem cells, comprising a centrifuge (1), a mounting disc (11) capable of rotating is installed in the centrifuge (1), the mounting disc (11) is provided with a plurality of centrifugal units (2), and the serological separation test tube set is characterized in that: the centrifugal unit (2) comprises a sleeve (3) and a cover body (4), the sleeve (3) is detachably connected with the cover body (4), and the mounting disc (11) is hinged with the outer side face of the sleeve (3);

the fixing component (6), the fixing component (6) is arranged on the cover body (4), and the fixing component (6) provides locking force acting on the test tube;

the weight balancing assembly (5), the weight balancing assembly (5) includes power supply (52) and balancing weight (51), the power supply (52) set up in one side of centrifuge (1), the balancing weight (51) set up in centrifuge (1), power supply (52) provide and act on power on the balancing weight (51), so that the balancing weight (51) is close to or keeps away from lid (4).

2. The set of serum separation tubes for stem cells according to claim 1, wherein: an inner groove (31) is annularly arranged in the sleeve (3), the balancing weight (51) is annularly arranged and matched with the inner groove (31) in shape, and the inner groove (31) is in sliding connection with the balancing weight (51).

3. The set of serum separation tubes for stem cells according to claim 2, wherein: a driving cavity (32) is arranged at the bottom of the sleeve (3), the inner groove (31) is arranged at the top of the driving cavity (32) and is communicated with the driving cavity (32), the output end of the power source (52) extends into the driving cavity (32), the driving part (53) comprises a large gear (54), at least one lead screw (56) and at least one small gear (55), the bull gear (54) is mounted at the output end of the power source (52) in the driving cavity (32), one ends of the lead screws (56) are rotatably mounted at the bottom of the driving cavity (32), the other ends of the lead screws (56) extend into the inner groove (31), and is rotationally connected with the inner wall of the top of the inner groove (31), a plurality of pinions (55) are respectively arranged on a plurality of lead screws (56), and the pinions (55) are all meshed with the bull gear (54).

4. The set of serum separation tubes for stem cells according to claim 1, wherein: lid (4) orientation the center department of sleeve (3) one side is provided with dead lever (61), on lid (4) with dead lever (61) axle center is provided with a plurality of mounting holes (41), a plurality of as central annular array mounting hole (41) homoenergetic acts on test tube top end cover locking force, and is a plurality of the cover is equipped with solid fixed ring (62) on dead lever (61), gu seted up a plurality of through-holes (63) on fixed ring (62), a plurality of through-hole (63) and a plurality of mounting hole (41) position one-to-one, through-hole (63) can provide the confining force that acts on the radial direction of test tube.

5. The set of serum separation tubes for stem cells according to claim 4, wherein: seted up along the axle center direction in dead lever (61) and indulged spout (68), it indulges slider (65) to indulge spout (68) slidable mounting, indulge slider (65) with indulge and be connected with spring (66) between spout (68), indulge spout (68) and follow a plurality of running through have been seted up to dead lever (61) radial direction slide (67) of dead lever (61), dead lever (61) outside is provided with a plurality of trays (64), and is a plurality of tray (64) position with mounting hole (41) position one-to-one, a plurality of one side of tray (64) stretches into respectively in slide (67) with indulge slider (65) fixed connection, spring (66) provide to act on indulge slider (65) vertically ascending elasticity, so that tray (64) all can bear the test tube.

6. The set of serum separation tubes for stem cells according to claim 5, wherein: slide (67) are followed dead lever (61) axial direction is provided with a plurality of slide bars (69) of indulging, and is a plurality of tray (64) and a plurality of indulge slide bar (69) sliding connection one by one.

7. The set of serum separation tubes for stem cells according to claim 4, wherein: the fixing rod (61) is far away from one end of the cover body (4) and the inner wall of the sleeve (3) are provided with magnets (7), and the magnets (7) can provide suction force to enable one end, far away from the cover body (4), of the fixing rod (61) to be fixed in the sleeve (3).