CN211217141U

CN211217141U - Desk-top refrigerated centrifuge convenient to remove and adjust

Info

Publication number: CN211217141U
Application number: CN201921763786.7U
Authority: CN
Inventors: 赖科观; 鲍静雨; 杨学佳
Original assignee: Xuhe Tianjin Pharmaceutical Technology Co ltd
Current assignee: Xuhe Tianjin Pharmaceutical Technology Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-08-11
Anticipated expiration: 2029-10-18

Abstract

The utility model relates to a refrigerated centrifuge technical field, concretely relates to desk-top refrigerated centrifuge convenient to remove and adjust. The utility model provides a pair of desk-top refrigerated centrifuge convenient to remove and adjust aims at overcoming the current refrigerated centrifuge who exists among the background art and can't adjust test tube inclination's problem in centrifuge according to the experiment requirement of difference. The utility model discloses a table type freezing centrifuge convenient to move and adjust, which comprises a support table and a rotary table rotationally connected with the support table, wherein the rotary table is coaxially provided with an adjusting shaft, the adjusting shaft is screwed with an adjusting ring, and the side surface of the adjusting ring is circumferentially and uniformly provided with a plurality of connecting blocks; the rotating table is fixedly provided with a plurality of placing parts for placing centrifuge tubes, and the placing parts are connected with the adjusting ring in a sliding manner through a connecting rod; the adjusting shaft is rotated to enable the adjusting ring to move up and down along the axis direction of the adjusting shaft through the adjusting threads so as to change the included angle between the axis direction of the centrifugal pipe sleeve and the horizontal plane.

Description

Desk-top refrigerated centrifuge convenient to remove and adjust

Technical Field

The utility model belongs to the technical field of the refrigerated centrifuge technique and specifically relates to a desk-top refrigerated centrifuge convenient to remove and adjust is related to.

Background

The centrifugal machine is an instrument for separating samples, is widely applied to the field of biomedicine, and realizes the analysis and separation of the samples by utilizing the difference of the sedimentation speeds of different substances in a centrifugal force field. Since the advent of the centrifugal machine, the centrifugal machine has been changed from low speed, regulated and over speed, and its progress is mainly embodied in two aspects of centrifugal equipment and centrifugal technology, which complement each other.

The inclination angle of a centrifugal tube hole of an existing angle rotor of a freezing centrifuge is generally 20-40 degrees, the position of the centrifugal tube is unchanged in the centrifugation process, a sample is reoriented, the influence of the inclination angle on the separation effect is large, the angle is large, the particle sedimentation distance is long, and the separation effect is good. Small angle, short settling distance of particles and high separation efficiency. The inclination angle of the existing centrifuge is a fixed angle formed by the angle rotor during manufacturing, and cannot be adjusted and changed according to the actual requirements during experiments.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a desk-top refrigerated centrifuge convenient to remove and adjust to current refrigerated centrifuge who exists can't adjust test tube inclination's in centrifuge problem according to the experiment requirement of difference in solving the background art.

Realize above-mentioned purpose the technical scheme of the utility model be, a desk-top refrigerated centrifuge convenient to remove and adjust.

The table type refrigerated centrifuge which is convenient to move and adjust and manufactured by the technical proposal of the utility model comprises a box body and a centrifugal mechanism arranged in the box body, wherein the centrifugal mechanism comprises a supporting table arranged at the bottom of the box body, a rotating table is vertically arranged above the supporting table and is rotationally connected with the supporting table, a mounting groove with a circular cross section is coaxially arranged on the upper surface of the rotating table, an adjusting shaft is coaxially arranged in the mounting groove, a fixed disc is coaxially arranged at the bottom of the adjusting shaft, the fixed disc is fixedly connected with the adjusting shaft, the diameter of the fixed disc is larger than that of the adjusting shaft, a rotary gland is arranged above the fixed disc in the mounting groove and is in threaded connection with the mounting groove, and adjusting threads are arranged on the outer side surface of the adjusting shaft, the adjusting screw thread is screwed with an adjusting ring, and a plurality of connecting blocks are uniformly distributed on the side surface of the adjusting ring in the circumferential direction; the revolving stage is fixedly provided with a plurality of placing parts for placing centrifuge tubes, the placing parts are circumferentially and uniformly distributed on the revolving stage by taking the axis of the adjusting shaft as a reference, the number of the placing parts is the same as that of the connecting blocks, the placing parts comprise a bracket fixedly arranged on the revolving stage, a support plate is hinged on the bracket, a centrifuge tube sleeve is arranged on the support plate, a connecting rod is fixedly arranged on the support plate, the axis of the connecting rod and the axis of the centrifuge tube sleeve are intersected with the axis of the adjusting shaft, a sliding block is arranged at one end of the connecting rod close to the adjusting shaft, a sliding groove is horizontally arranged on the connecting block back to one side of the adjusting shaft, the sliding block is in sliding connection with the connecting blocks through the sliding groove, and each placing part is connected with each connecting block through the sliding block on the connecting rod, a stepping groove is also vertically formed in one surface, back to the adjusting shaft, of the connecting block, the stepping groove and the sliding groove are crossed, two limiting rings are further arranged on one surface, back to the adjusting shaft, of the connecting block, and the two limiting rings are symmetrically arranged on two sides of the stepping groove to prevent the sliding block from falling off from the sliding groove; the refrigerated centrifuge also comprises a rotary motion output device for driving the rotary table to rotate; and rotating the adjusting shaft to enable the adjusting ring to move up and down along the axis direction of the adjusting shaft through the adjusting threads so as to change the included angle between the axis direction of the centrifugal pipe sleeve and the horizontal plane.

The coaxial transmission shaft that is provided with on the lower surface of revolving stage, the transmission shaft with revolving stage fixed connection, be provided with the confession on the brace table the transmission shaft male step hole, the step hole is including setting up the first step of step hole opening part is in with the setting the second step of first step below, be provided with deep groove ball bearing on the second step, be provided with tapered roller bearing on the first step, the transmission shaft through with deep groove ball bearing with tapered roller bearing's rotation is connected and is made the revolving stage with the brace table rotates to be connected.

The lower surface of revolving stage is coaxial to be provided with first gear, first gear sets up the revolving stage with between the transmission shaft and with revolving stage fixed connection, rotate on the brace table be provided with first gear engagement's second gear, rotary motion follower is through a connecting seat fixed connection on the inner wall of box, still be provided with on rotary motion follower's the output shaft with second gear engagement's third gear.

The box top is provided with a case lid, the bottom of box is provided with two universal wheels, the universal wheel sets up the both feet department on the same base of box bottom surface, the bottom of box still is provided with the support lug, the thickness of support lug is not less than the universal wheel is kept away from the one end of box bottom surface is arrived the distance of box bottom surface.

The side of box is provided with the handle, the handle setting is in the box is kept away from the one side of universal wheel.

And a refrigerating device for reducing the internal temperature of the box body is also arranged in the box body.

The number of the placing parts is four.

By adopting the technical scheme, the utility model discloses following beneficial effect has:

the utility model discloses the setting of scheme makes operating personnel can adjust the inclination of centrifuging tube to different experiment requirements and needs centrifugal sample kind to adapt to different experiment requirements, have good suitability, simultaneously for need buy the centrifuge at many different inclinations before and adapt to different experiments greatly reduced the experiment cost. The setting of bearing between revolving stage and the brace table has reduced the frictional force when the revolving stage is high-speed rotatory, prevents to lead to this centrifuge to damage because the friction is overheated. The design of universal wheel and handle has made things convenient for operating personnel to this centrifuge's removal before and after the experiment.

Drawings

FIG. 1 is a schematic diagram of a table refrigerated centrifuge for easy movement and adjustment according to the present invention;

FIG. 2 is a schematic diagram of a table refrigerated centrifuge for easy movement and adjustment according to the present invention;

fig. 3 is a schematic partial structure diagram of a table-type refrigerated centrifuge convenient to move and adjust according to the present invention.

In the figure, 1, a box body; 2. a centrifugal mechanism; 3. a support table; 4. a rotating table; 5. mounting grooves; 6. an adjustment shaft; 7. fixing the disc; 8. rotating the gland; 9. adjusting the screw thread; 10. an adjustment ring; 11. connecting blocks; 12. a placement part; 13. a support; 14. a support plate; 15. a centrifugal pipe sleeve; 16. a connecting rod; 17. a slider; 18. a sliding groove; 19. a yielding groove; 20. a limiting ring; 21. a rotational motion follower; 22. a drive shaft; 23. a stepped bore; 24. a first step; 25. a second step; 26. a deep groove ball bearing; 27. a tapered roller bearing; 28. a first gear; 29. a second gear; 30. a third gear; 31. a box cover; 32. a universal wheel; 33. supporting the projection; 34. a handle; 35. a refrigeration device.

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 as used in the following description, the terms "front," "back," "left," "right," "upper," and "lower" 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.

As shown in fig. 1 to 3, a table-top refrigerated centrifuge, which is easy to move and adjust, includes a casing 1 and a centrifugal mechanism 2 provided in the casing 1.

Referring to fig. 1 to 3, a centrifugal mechanism 2 includes a supporting table 3 arranged at the bottom of a box 1, a rotating table 4 is vertically arranged above the supporting table 3, the rotating table 4 is rotatably connected with the supporting table 3, an installation groove 5 with a circular cross section is coaxially arranged on the upper surface of the rotating table 4, an adjusting shaft 6 is coaxially arranged in the installation groove 5, a fixed disc 7 is coaxially arranged at the bottom of the adjusting shaft 6, the fixed disc 7 is fixedly connected with the adjusting shaft 6, the diameter of the fixed disc 7 is larger than that of the adjusting shaft 6, a rotating gland 8 is arranged above the fixed disc 7 in the installation groove 5, the rotating gland 8 is in threaded connection with the installation groove 5, an adjusting thread 9 is arranged on the outer side surface of the adjusting shaft 6, an adjusting ring 10 is screwed on the adjusting thread 9, and a; the rotating platform 4 is fixedly provided with a plurality of placing parts 12 for placing centrifuge tubes, the placing parts 12 are circumferentially and uniformly distributed on the rotating platform 4 by taking the axis of the adjusting shaft 6 as a reference, the number of the placing parts 12 is the same as that of the connecting blocks 11, the placing parts 12 comprise a bracket 13 fixedly arranged on the rotating platform 4, a support plate 14 is hinged on the bracket 13, a centrifugal pipe sleeve 15 is arranged on the support plate 14, a connecting rod 16 is also fixedly arranged on the support plate 14, the axis of the connecting rod 16 and the axis of the centrifugal pipe sleeve 15 are both intersected with the axis of the adjusting shaft 6, one end of the connecting rod 16 close to the adjusting shaft 6 is provided with a sliding block 17, one surface of the connecting block 11, which is opposite to the adjusting shaft 6, is horizontally provided with a sliding groove 18, the sliding block 17 is in sliding connection with the connecting blocks 11 through the sliding groove 18, each placing part 12 is respectively connected with each connecting block 11 through the sliding, the abdicating groove 19 and the sliding groove 18 are crossed, two limiting rings 20 are further arranged on one surface of the connecting block 11, which is back to the adjusting shaft 6, and the two limiting rings 20 are symmetrically arranged on two sides of the abdicating groove 19 so as to prevent the sliding blocks 17 from falling off from the sliding groove 18; the refrigerated centrifuge further comprises a rotational motion follower 21 for driving the rotation of the rotary table 4; the adjusting shaft 6 is rotated to enable the adjusting ring 10 to move up and down along the axial direction of the adjusting shaft 6 through the adjusting screw thread 9 so as to change the included angle between the axial direction of the centrifugal pipe sleeve 15 and the horizontal plane. When the inclination angle of the centrifugal tube is adjusted, firstly, the rotary gland 8 is rotated to separate the lower end face of the rotary gland 8 from the fixed disc 7, then the adjusting shaft 6 is rotated to prevent the adjusting ring 10 from rotating relative to the rotating table 4, the adjusting ring 10 moves up and down on the adjusting shaft 6 through the adjusting screw threads 9, at the moment, the sliding block 17 on the connecting rod 16 slides in the sliding groove 18 of the connecting block 11, as the centrifugal tube sleeve 15 is hinged on the bracket 13 fixedly connected with the rotating table 4 through the supporting plate 14, the supporting plate 14 is in sliding connection with the connecting block 11 on the adjusting ring 10 through the connecting rod 16 and the sliding block, and when the adjusting ring 10 moves up and down along the adjusting shaft 6, the; after the inclination angle is adjusted, the adjusting shaft 6 is fixed on the rotating platform 4 by tightly pressing the fixed disk 7 through screwing the rotating gland 8, so that the adjustment of the inclination angle of the centrifugal tube is completed. The rotary motion follower 21 may be an electric motor or a hydraulic motor; the lower end face of the rotary gland 8 can be provided with a rubber gasket to increase the friction force between the rotary gland and the fixed disc 7, and the fixing effect on the fixed disc 7 is improved. Such setting makes operating personnel can adjust the inclination of centrifuging tube to different experimental requirements and the sample kind that needs the centrifugation to adapt to different experimental requirements, have good suitability, simultaneously for need buy the centrifuge at many different inclinations before and adapt to different experiments greatly reduced the experiment cost.

Referring to fig. 1, a transmission shaft 22 is coaxially disposed on a lower surface of the rotating platform 4, the transmission shaft 22 is fixedly connected to the rotating platform 4, a step hole 23 into which the transmission shaft 22 is inserted is disposed on the supporting platform 3, the step hole 23 includes a first step 24 disposed at an opening of the step hole 23 and a second step 25 disposed below the first step 24, a deep groove ball bearing 26 is disposed on the second step 25, a tapered roller bearing 27 is disposed on the first step 24, and the transmission shaft 22 is rotatably connected to the supporting platform 3 through a rotational connection with the deep groove ball bearing 26 and the tapered roller bearing 27. The arrangement of the bearing reduces the friction force when the rotating platform 4 rotates at high speed, and prevents the damage of the centrifuge caused by the overheating of friction.

Referring to fig. 1 and 2, a first gear 28 is coaxially disposed on the lower surface of the rotary table 4, the first gear 28 is disposed between the rotary table 4 and the transmission shaft 22 and is fixedly connected to the rotary table 4, a second gear 29 engaged with the first gear 28 is rotatably disposed on the support table 3, the rotary motion follower 21 is fixedly connected to the inner wall of the case 1 through a connecting seat, and a third gear 30 engaged with the second gear 29 is further disposed on the output shaft of the rotary motion follower 21.

Referring to fig. 1, a box cover 31 is arranged at the top of the box body 1, two universal wheels 32 are arranged at the bottom of the box body 1, the universal wheels 32 are arranged at two feet on the same bottom side of the bottom surface of the box body 1, a supporting bump 33 is further arranged at the bottom of the box body 1, and the thickness of the supporting bump 33 is not less than the distance from one end of the universal wheel 32 far away from the bottom surface of the box body 1 to the bottom surface of the box body 1. The design of the universal wheels 32 facilitates movement of the centrifuge by the operator before and after the experiment.

Referring to fig. 1 and 2, a handle 34 is provided on a side surface of the case 1, and the handle 34 is provided on a surface of the case 1 away from the caster 32. The handle 34 is designed to facilitate movement of the centrifuge by the operator before and after the experiment.

Referring to fig. 1 and 2, a refrigerating device 35 for reducing the temperature inside the cabinet 1 is further provided inside the cabinet 1. The arrangement of the refrigerating device 35 ensures a relatively stable low-temperature environment inside the box body 1 during the centrifugal experiment. The cooling device 35 may be an air cooler.

Referring to fig. 2, the seating portions 12 are provided in four groups in number. The four groups of symmetrical designs ensure the stability of the centrifuge during operation.

The working principle is as follows:

when the inclination angle of the centrifugal tube is adjusted, firstly, the rotary gland 8 is rotated to separate the lower end face of the rotary gland 8 from the fixed disc 7, then the adjusting shaft 6 is rotated to prevent the adjusting ring 10 from rotating relative to the rotating table 4, the adjusting ring 10 moves up and down on the adjusting shaft 6 through the adjusting screw threads 9, at the moment, the sliding block 17 on the connecting rod 16 slides in the sliding groove 18 of the connecting block 11, as the centrifugal tube sleeve 15 is hinged on the bracket 13 fixedly connected with the rotating table 4 through the supporting plate 14, the supporting plate 14 is in sliding connection with the connecting block 11 on the adjusting ring 10 through the connecting rod 16 and the sliding block, and when the adjusting ring 10 moves up and down along the adjusting shaft 6, the; after the inclination angle is adjusted, the adjusting shaft 6 is fixed on the rotating platform 4 by tightly pressing the fixed disk 7 through screwing the rotating gland 8, so that the adjustment of the inclination angle of the centrifugal tube is completed.

Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Claims

1. The utility model provides a desk-top refrigerated centrifuge convenient to remove and adjust, includes box (1) and sets up centrifugation mechanism (2) in box (1), its characterized in that: the centrifugal mechanism (2) comprises a supporting table (3) arranged at the bottom of the box body (1), a rotating table (4) is vertically arranged above the supporting table (3), the rotating table (4) is rotatably connected with the supporting table (3), a cross section is coaxially arranged on the upper surface of the rotating table (4) and is a circular mounting groove (5), an adjusting shaft (6) is coaxially arranged in the mounting groove (5), a fixed disc (7) is coaxially arranged at the bottom of the adjusting shaft (6), the fixed disc (7) is fixedly connected with the adjusting shaft (6), the diameter of the fixed disc (7) is larger than that of the adjusting shaft (6), a rotary gland (8) is arranged above the fixed disc (7) in the mounting groove (5), the rotary gland (8) is in threaded connection with the mounting groove (5), and adjusting threads (9) are arranged on the outer side surface of the adjusting shaft (6), an adjusting ring (10) is screwed on the adjusting thread (9), and a plurality of connecting blocks (11) are uniformly distributed on the side surface of the adjusting ring (10) in the circumferential direction; the fixed portion of laying (12) that is provided with a plurality of centrifuging tubes that are used for laying that are provided with on revolving stage (4), a plurality of lay portion (12) with the axis of regulating spindle (6) is in for benchmark circumference equipartition on revolving stage (4), the quantity that portion of laying (12) set up with the quantity of connecting block (11) is the same, portion of laying (12) is including fixed setting up support (13) on revolving stage (4), it has backup pad (14) to articulate on support (13), be provided with centrifugal pipe box (15) on backup pad (14), still fixed being provided with connecting rod (16) on backup pad (14), the axis of connecting rod (16) with the axis of centrifugal pipe box (15) all with the axis of regulating spindle (6) is crossing, connecting rod (16) are close to the one end of regulating spindle (6) is provided with slider (17), the adjusting mechanism is characterized in that a sliding groove (18) is horizontally formed in one face, back to the adjusting shaft (6), of the connecting block (11), the sliding block (17) is connected with the connecting block (11) through the sliding groove (18), each placing part (12) is connected with each connecting block (11) through the sliding block (17) on the connecting rod (16), an abdicating groove (19) is vertically formed in one face, back to the adjusting shaft (6), of the connecting block (11), the abdicating groove (19) and the sliding groove (18) are crossed, two limiting rings (20) are further arranged on one face, back to the adjusting shaft (6), of the connecting block (11), the two limiting rings (20) are symmetrically arranged on two sides of the abdicating groove (19) to prevent the sliding block (17) from falling off from the sliding groove (18); the refrigerated centrifuge also comprises a rotary motion follower (21) for driving the rotary table (4) in rotation; and rotating the adjusting shaft (6) to enable the adjusting ring (10) to move up and down along the axial direction of the adjusting shaft (6) through the adjusting thread (9) so as to change the included angle between the axial direction of the centrifugal pipe sleeve (15) and the horizontal plane.

2. A bench top refrigerated centrifuge for ease of movement and adjustment as defined in claim 1 wherein: the coaxial transmission shaft (22) that is provided with on the lower surface of revolving stage (4), transmission shaft (22) with revolving stage (4) fixed connection, be provided with the confession on supporting bench (3) transmission shaft (22) male step hole (23), step hole (23) are including setting up first step (24) and the setting of step hole (23) opening part are in second step (25) of first step (24) below, be provided with deep groove ball bearing (26) on second step (25), be provided with tapered roller bearing (27) on first step (24), transmission shaft (22) through with deep groove ball bearing (26) with the rotation of tapered roller bearing (27) is connected and is made revolving stage (4) with supporting bench (3) rotate and connect.

3. A bench top refrigerated centrifuge for ease of movement and adjustment as defined in claim 2 wherein: the lower surface of revolving stage (4) is coaxial to be provided with first gear (28), first gear (28) set up revolving stage (4) with between transmission shaft (22) and with revolving stage (4) fixed connection, rotate on brace table (3) be provided with second gear (29) of first gear (28) meshing, rotary motion follower (21) through a connecting seat fixed connection be in on the inner wall of box (1), still be provided with on the output shaft of rotary motion follower (21) with third gear (30) of second gear (29) meshing.

4. A bench top refrigerated centrifuge for ease of movement and adjustment as defined in claim 1 wherein: the utility model discloses a box, including box (1), bottom, universal wheel (32), support lug (33), the thickness of support lug (33) is not less than the universal wheel (32) are kept away from the one end of box (1) bottom surface is arrived the distance of box (1) bottom surface, the bottom of box (1) is provided with two universal wheels (32), universal wheel (32) set up two feet department on the same base of box (1) bottom surface, the bottom of box (1) still is provided with support lug (33).

5. A bench top refrigerated centrifuge for ease of movement and adjustment as defined in claim 4 wherein: the side of the box body (1) is provided with a handle (34), and the handle (34) is arranged on the side, far away from the universal wheels (32), of the box body (1).

6. A bench top refrigerated centrifuge for ease of movement and adjustment as defined in claim 1 wherein: and a refrigerating device (35) for reducing the internal temperature of the box body (1) is also arranged in the box body (1).

7. A bench top refrigerated centrifuge for ease of movement and adjustment as defined in claim 1 wherein: the number of the placing parts (12) is four.