CN111659541A - Test tube centrifugation method of test tube centrifugation mechanism convenient to place - Google Patents

Abstract

The invention discloses a test tube centrifugal method of a test tube centrifugal mechanism which is easy to place. The method comprises a placing mechanism, a test tube, a centrifugal disk and a sliding T-shaped groove, wherein thirty sliding T-shaped grooves are evenly opened circumferentially on the end surface of the centrifugal disk; thirty placing mechanisms are installed on the centrifugal disk through the thirty sliding T-shaped grooves; thirty test tubes are respectively placed on the thirty placing mechanisms; the method is simple, effective, convenient and fast.

Description

A test tube centrifugation method of a test tube centrifuge mechanism that is easy to place

technical field

The invention belongs to the technical field of test tube centrifugation, and in particular relates to a test tube centrifugation method of a test tube centrifuge mechanism which is convenient for placement.

Background technique

In order to continuously improve the existing medical level, medical scientists need to continuously conduct rigorous medical experiments to obtain the latest and most comprehensive medical knowledge, which can be used to treat human diseases and improve the health level of all human beings. Test tubes are often used for the separation of reagents. Containers are especially common in medical experiments; however, if the distribution of test tubes is scattered during the experiment, the experimental efficiency will be greatly affected; therefore, it is very necessary to design a test tube centrifugation mechanism that can centrally place test tubes.

The present invention designs a test tube centrifugation method with a test tube centrifuge mechanism that is easy to place to solve the above problems.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned defects in the prior art, the present invention discloses a test-tube centrifugation method with a test-tube centrifuge mechanism that is easy to place, which is realized by adopting the following technical solutions.

A test tube centrifugation method for a test tube centrifugation mechanism that is easy to place, is characterized in that: it comprises a placement mechanism, a test tube, a centrifugal disc, and a sliding T-shaped groove, wherein the end face of the centrifugal disc is evenly provided with thirty sliding T-shaped circumferentially. Thirty placement mechanisms are mounted on the centrifuge disc through thirty sliding T-shaped grooves; thirty test tubes are placed on the thirty placement mechanisms respectively.

The above-mentioned placement mechanism includes a support rod, a sliding block, a U-shaped fixing frame, an arc-shaped baffle, a rotating groove, an arc-shaped chamfer, a rotating shaft, a trigger tooth plate, a placing ring, a ring gear, a first gear, a T-shaped guide block, The second gear, the third gear, the first shaft, the second shaft, the T-shaped guide groove, the connecting plate, the installation drive ring, the fixed connection, the installation connection ring, the installation ring, wherein the sliding block is installed in the sliding T-shaped groove; the support The lower end of the rod is installed on the upper end of the sliding block; the upper ends of the two opposite sides of the U-shaped groove on the U-shaped fixing frame are symmetrically opened with two rotating grooves; the lower end surface of the U-shaped fixing frame is installed on the upper end of the support rod; the placing ring There is a T-shaped guide groove that penetrates downwards on the upper end surface of the ring; two rotating shafts are evenly installed on the outer surface of the placing ring; the axes of the two rotating shafts are parallel to the bottom end surface of the T-shaped guide groove. ; The placing ring is installed on the U-shaped fixing frame through the cooperation of two rotating shafts and two rotating grooves; One of the two internally symmetrical end faces, and the third gear is nested on the corresponding rotating shaft; the installation drive ring is installed on the rotating shaft on the side where the third gear is installed; the three first rotating shafts are circumferentially arranged Evenly installed on the end face of the installation drive ring near the third gear; three second gears are respectively installed on the three first rotating shafts; three second gears mesh with the third gear respectively; the inner surface of the ring gear There are teeth on the upper surface; teeth on the outer surface of the ring gear; one end of the ring gear is installed with a mounting connecting ring; one end of the mounting connecting ring is installed with a mounting ring through the bearing; The teeth on the inner circular surface of the ring gear mesh with the three second gears; one end of the fixed connection is installed on the mounting ring; the second shaft is installed on the other end of the fixed connection; the first gear is installed on the second shaft ; The first gear meshes with the teeth on the outer circular surface of the toothed ring; one end of the connecting plate is installed with a T-shaped guide block; The arc baffle is installed on the upper end of the connecting plate; the arc baffle is matched with the test tube; the trigger tooth plate is installed on the side of the lower end of the connecting plate; the trigger tooth plate is engaged with the first gear.

The above-mentioned thirty placement mechanisms are staggeredly installed on the centrifugal disc in the initial state, and the thirty placement mechanisms are divided into two inner and outer circles; any one of the placement mechanisms installed in the inner circle is placed with the adjacent two in the outer circle. The mechanism is staggered; for the placement mechanism in the inner ring, two spring fixing plates are respectively installed at both ends of one side of the U-shaped fixing frame; two spring mounting plates are installed on the outer circular surface of the drive ring; two spring mounting plates are installed A first return spring is installed between the corresponding two spring fixing plates; the test tube passes through the drive ring; a first return spring is installed between the sliding block and the end face of the sliding T-shaped groove near the center of the centrifugal disc; For the placement mechanism in the outer ring, two spring fixing plates are respectively installed at both ends of one side of the U-shaped fixing frame; two spring installation plates are installed on the outer circular surface of the drive ring; A second return spring is respectively installed between the spring fixing plates; the test tube passes through the drive ring; and a second return spring is installed between the sliding block and the end face of the sliding T-shaped groove near the center of the centrifugal disc.

The elasticity of the first return spring is greater than that of the second return spring; the elasticity of the first return spring is greater than that of the second return spring.

As a further improvement of the present technology, the upper end of the T-shaped guide block has a missing block; its function is to prevent the T-shaped guide block from interfering with the test tube during the moving process.

As a further improvement of the present technology, two limit slots are symmetrically opened on both ends of the bottom side of the T-shaped guide groove; two limit installation grooves are symmetrically opened on both sides of the T-shaped guide block; the limit block There are two arc surfaces symmetrically on both sides of one end; the ends without arc surfaces on the two limit blocks are respectively installed in the two limit installation grooves; the end without arc surfaces on the two limit blocks is A compression spring is installed between the bottom ends of the corresponding two limit installation grooves respectively; the two limit blocks are matched with the two limit grooves respectively; The cooperation of the block and the limiting groove plays a limiting role on the arc-shaped baffle; it prevents the arc-shaped baffle from falling under the centrifugal action.

As a further improvement of the present technology, for the above-mentioned placement mechanism in the inner ring, when the test tube swings under the centrifugal force, the driving ring is made to be driven by the friction force between the driving ring and the test tube, the centrifugal force of the driving ring and the elastic force of the two first return springs. Relatively stationary with the test tube.

As a further improvement of the present technology, for the above-mentioned placement mechanism in the outer ring, when the test tube swings under the centrifugal force, the driving ring is caused by the friction force between the driving ring and the test tube, the centrifugal force of the driving ring and the elastic force of the two second return springs. Relatively stationary with the test tube.

As a further improvement of the present technology, the outer circular surface of the upper end of the test tube has an arc-shaped chamfer; its function is to prevent the test tube from falling off the placing ring.

Compared with the traditional test tube centrifugation technology, the test tube centrifugation mechanism designed by the present invention can centrally place the test tube in the center of the centrifuge disk instead of the outer side of the centrifuge disk during use, which reduces the time for placing the test tube.

In the present invention, the sliding block is installed in the sliding T-shaped groove; the lower end of the supporting rod is installed on the upper end of the sliding block; the lower end surface of the U-shaped fixing frame is installed on the upper end of the supporting rod; Fittingly installed on the U-shaped fixing frame; the test tube is fixedly placed on the U-shaped fixing frame through the placing ring; one end of the third gear is installed on one of the two symmetrical end faces in the U-shaped groove on the U-shaped fixing frame; The installation drive ring is installed on the rotating shaft on the side where the third gear is installed; the three first rotating shafts are evenly installed on the end face of the installation drive ring on the side close to the third gear; the three second gears are respectively installed on the third gear. three second gears are meshed with the third gears respectively; one end of the ring gear is installed with a mounting connecting ring; one end of the mounting connecting ring is mounted with a mounting ring through a bearing; The teeth on the inner circular surface of the ring gear mesh with the three second gears; one end of the fixed connection is installed on the mounting ring; the second shaft is installed on the other end of the fixed connection; the first gear is installed on the second On the rotating shaft; the first gear meshes with the teeth on the outer circular surface of the toothed ring; one end of the connecting plate is installed with a T-shaped guide block; The outer circular surface of the ring; the arc baffle is installed on the upper end of the connecting plate; the arc baffle is matched with the test tube; the trigger tooth plate is installed on the side of the lower end of the connecting plate; the trigger tooth plate is engaged with the first gear; in the initial state Thirty placement mechanisms are staggeredly installed on the centrifugal disc, and the thirty placement mechanisms are divided into inner and outer rings; any one of the placement mechanisms installed in the inner ring is staggered with the two adjacent placement mechanisms in the outer ring; for For the placement mechanism in the inner ring, two spring fixing plates are respectively installed at both ends of one side of the U-shaped fixing frame; two spring installation plates are installed on the outer circular surface of the drive ring; A first return spring is respectively installed between the spring fixing plates; the test tube passes through the drive ring; a first return spring is installed between the sliding block and the end face of the sliding T-shaped groove near the center of the centrifugal disc; Placement mechanism, two spring fixing plates are respectively installed on both ends of one side of the U-shaped fixing frame; two spring installation plates are installed on the outer circular surface of the drive ring; the two spring installation plates and the corresponding two spring fixing plates are connected A second return spring is installed between them; the test tube passes through the drive ring; a second return spring is installed between the sliding block and the end face of the sliding T-shaped groove close to the center of the centrifuge disc; when the centrifuge disc rotates, the centrifuge disc will Drive the sliding block installed on the centrifugal disc to rotate; the sliding block rotates to drive the support rod to rotate; the support rod rotates to drive the U-shaped fixing frame to rotate; the U-shaped fixing frame drives the test tube to rotate through the placing ring; at the same time, under the action of centrifugal force; the sliding block starts to rotate Slide to the outside of the centrifugal disc; the sliding block slides the support rod to slide to the outside of the centrifugal disc; the support rod slides to drive the U-shaped fixing frame to slide to the outside of the centrifugal disc; the U-shaped fixing frame drives the test tube to slide to the outside of the centrifugal disc through the placing ring ; During the sliding process of the test tube, the test tube will also swing under the action of centrifugation; the swing of the test tube will drive the placement ring to swing; the placement ring swings on the one hand It will drive the connecting plate, the T-shaped guide block, the trigger teeth, the installation connecting ring, the fixed connection and the second shaft to swing; the swing of the second shaft will drive the first gear to swing; at the same time, the swing of the placing ring will also drive the rotating shaft to rotate; the rotating shaft rotates It will drive the installation drive ring to rotate; because one end of the third gear is installed on one of the two symmetrical end faces in the U-shaped groove on the U-shaped fixing frame; that is, the third gear will not rotate in a static state; so The rotation of the installed drive ring will make the three second gears rotate; the rotation of the second gear will drive the ring gear to rotate; when the rotation speed of the ring gear is greater than the swing speed of the first gear, the ring gear will drive the first gear to rotate; The rotation of the first gear will drive the triggering tooth plate to move downward; the downward movement of the triggering tooth plate will drive the connecting plate to move downward; the downward movement of the connecting plate will drive the arc baffle to move downward; when the test tube swings to its axis and the centrifugal disc When parallel, the upper end of the arc-shaped baffle just moves to be flush with the upper end surface of the test tube, and the sliding block just moves to the outermost side of the T-shaped chute; at this time, the sample in the test tube is precipitated and separated under the action of centrifugal force; When the sediment separation is completed, the centrifugal disc stops rotating; at this time, under the action of the first return spring or the second return spring, the sliding block will gradually move to the center of the centrifugal disc; the sliding block drives the support rod, U-shaped The fixing frame, the placing ring and the test tube are gradually restored; at the same time, the test tube is gradually restored to the original vertical state under the action of the first return spring and the second return spring and driven by the driving ring; the test tube is restored to the vertical state. During the process, the test tube will drive the placement ring to rotate; the rotation of the placement ring drives the rotation of the rotating shaft; the rotation of the rotating shaft will drive the rotation of the installation drive ring; because one end of the third gear is installed on the two symmetrical end faces of the U-shaped groove on the U-shaped fixing frame That is, the third gear will not rotate when it is in a static state; so the rotation of the drive ring will make the three second gears rotate; the rotation of the second gear will drive the ring gear to rotate; when the rotation of the ring gear When the speed is greater than the swing speed of the first gear, the ring gear will drive the first gear to rotate; the rotation of the first gear will drive the trigger tooth plate to move upward; the upward movement of the trigger tooth plate drives the connecting plate to move upward; the upward movement of the connecting plate drives the arc Because the test tube will recover quickly under the action of the first return spring and the second return spring; but it is possible to spill the sample in the test tube to the outside of the test tube; so the present invention moves to the test tube by Arc-shaped baffle on the side to prevent the sample from spilling in the test tube; the function of the T-shaped guide groove and the T-shaped guide block in the present invention is to guide the arc-shaped baffle; so that the arc-shaped baffle just moves to the upper end of the test tube Wrap the outer circumference of the test tube. In the present invention, the elasticity of the first return spring is greater than that of the second return spring; its function is to prevent the test tube located on the outer side from moving at a lower speed than the test tube located on the inner side under the centrifugal action, so that the adjacent test tubes inside and outside are prevented from The collision will break the test tube; the elasticity of the first return spring is greater than that of the second return spring; its function is to prevent the test tube located on the outside from swinging under the centrifugal action less than the swing speed of the test tube located on the inside, causing the inner and outer adjacent test tubes to occur. The collision will break the test tube.

When people use the test tube centrifugal mechanism designed by the present invention, when the centrifugal disc rotates, the centrifugal disc will drive the sliding block installed on the centrifugal disc to rotate; the rotation of the sliding block drives the rotation of the support rod; the rotation of the support rod drives the rotation of the U-shaped fixing frame; The U-shaped fixing frame drives the test tube to rotate through the placing ring; at the same time, under the action of centrifugal force, the sliding block starts to slide to the outside of the centrifugal disc; the sliding of the sliding block drives the support rod to slide to the outside of the centrifugal disc; The outer side of the centrifugal disc slides; the U-shaped fixing frame drives the test tube to slide to the outer side of the centrifugal disc through the placing ring; during the sliding process of the test tube, the test tube will also swing under the action of centrifugation; the swing of the test tube will drive the placing ring to swing; the placing ring On the one hand, the swing will drive the connecting plate, the T-shaped guide block, the trigger teeth, the installation connecting ring, the fixed connection and the second rotating shaft to swing; the swing of the second rotating shaft will drive the first gear to swing; at the same time, the swing of the placement ring will also drive the rotating shaft to rotate; The rotation of the rotating shaft will drive the installation drive ring to rotate; because one end of the third gear is installed on one of the two symmetrical end faces in the U-shaped groove on the U-shaped fixing frame; that is, the third gear is in a static state. Therefore, the rotation of the installed drive ring will make the three second gears rotate; the rotation of the second gear will drive the ring gear to rotate; when the rotation speed of the ring gear is greater than the swing speed of the first gear, the ring gear will drive the first gear. The gear rotates; the rotation of the first gear will drive the trigger tooth plate to move downward; the trigger tooth plate moves downward to drive the connecting plate to move downward; the downward movement of the connecting plate drives the arc baffle to move downward; when the test tube swings to its axis When it is parallel to the centrifugal disc, the upper end of the arc-shaped baffle is just moved to be flush with the upper end surface of the test tube, and the sliding block is also moved to the outermost side of the T-shaped chute; at this time, under the action of centrifugal force, the sample in the test tube is processed. Precipitation separation.

Description of drawings

Figure 1 is a schematic diagram of the overall component distribution.

Figure 2 is a schematic diagram of the distribution of the placement mechanism.

Figure 3 is a schematic diagram of the structure of the centrifugal disc.

Figure 4 is a schematic diagram of the structure of the sliding T-shaped groove.

FIG. 5 is a schematic diagram of the staggered distribution of the placement mechanisms.

Figure 6 is a schematic view of the appearance of the placement mechanism.

Figure 7 is a schematic structural diagram of the placement mechanism.

Figure 8 is a schematic diagram of the installation of the U-shaped fixing frame.

Figure 9 is a schematic diagram of the structure of the test tube.

Figure 10 is a schematic cross-sectional view of a test tube.

Figure 11 is a schematic diagram of the installation of the drive ring.

Figure 12 is a schematic diagram of the installation of the spring mounting plate.

Figure 13 is a schematic diagram of the placement ring installation.

Figure 14 is a schematic diagram of the connection board installation.

Fig. 15 is a schematic diagram of the cooperation between the trigger tooth plate and the first gear.

Figure 16 is a schematic diagram of the placement ring structure.

Figure 17 is a schematic diagram of the installation of the trigger tooth plate.

Figure 18 is a schematic diagram of the installation of the second gear.

Figure 19 is a schematic diagram of the installation of the drive ring.

Figure 20 is a schematic diagram of the installation of the second shaft.

Figure 21 is a schematic diagram of the installation of the limit block.

Figure 22 is a schematic diagram of the installation of the compression spring.

Figure 23 is a schematic diagram of the structure of the ring gear.

Label names in the figure: 1. Placement mechanism; 2. Test tube; 3. Centrifugal disc; 4. Sliding T-shaped groove; 5. First return spring; 6. Second return spring; 7. Support rod; 8. Slide block; 9. Spring fixing plate; 10. First return spring; 11. U-shaped fixing frame; 12. Arc-shaped blocking plate; 13. Rotating groove; 14. Arc-shaped chamfering; 15. Spring mounting plate; 16. Driving ring ; 17, rotating shaft; 18, trigger tooth plate; 19, placement ring; 20, ring gear; 21, first gear; 22, T-shaped guide block; 23, second gear; 24, third gear; 25, first 1 shaft; 26, second shaft; 27, T-shaped guide groove; 28, limit slot; 29, connecting plate; 30, limit block; 31, install drive ring; 32, fixed connection; 33, compression spring; 34 , limit installation groove; 35, the second return spring; 36, install the connecting ring; 37, install the ring.

Detailed ways

As shown in Figure 1, it includes a placement mechanism 1, a test tube 2, a centrifugal disc 3, and a sliding T-shaped groove 4. As shown in Figures 3 and 4, the end face of the centrifugal disc 3 is evenly opened with thirty sliding T-shaped grooves 4; as shown in Figures 1 and 2, thirty placement mechanisms 1 are installed on the centrifugal disc 3 through thirty sliding T-shaped grooves 4; as shown in Figure 1, thirty test tubes 2 are respectively placed in three Ten placement mechanisms 1.

As shown in Figures 6 and 7, the above-mentioned placement mechanism 1 includes a support rod 7, a sliding block 8, a U-shaped fixing frame 11, an arc-shaped blocking piece 12, a rotating groove 13, an arc-shaped chamfer 14, a rotating shaft 17, and a trigger tooth plate. 18. Placement ring 19, ring gear 20, first gear 21, T-shaped guide block 22, second gear 23, third gear 24, first shaft 25, second shaft 26, T-shaped guide groove 27, connecting plate 29 , Install the drive ring 31, the fixed connection 32, the installation connection ring 36, and the installation ring 37. As shown in Figure 2, the sliding block 8 is installed in the sliding T-shaped groove 4; as shown in Figure 8, the lower end of the support rod 7 is installed On the upper end of the sliding block 8; the upper ends of the two opposite sides of the U-shaped fixing frame 11 are symmetrically opened with two rotating grooves 13; the lower end surface of the U-shaped fixing frame 11 is installed on the upper end of the support rod 7; As shown in FIG. 16 , the upper end surface of the placing ring 19 is provided with a T-shaped guide groove 27 penetrating downward; the outer circumferential surface of the placing ring 19 is uniformly installed with two rotating shafts 17 in the circumferential direction; the axes of the two rotating shafts move They are respectively parallel to the bottom end surfaces of the T-shaped guide grooves 27; as shown in Figure 13, the placing ring 19 is installed on the U-shaped fixing frame 11 through the cooperation of the two rotating shafts and the two rotating grooves 13; as shown in Figure 7, the test tube 2. It is fixedly placed on the U-shaped fixing frame 11 through the placing ring 19; as shown in Figure 15, one end of the third gear 24 is installed on one of the two symmetrical end faces in the U-shaped groove on the U-shaped fixing frame 11. , as shown in Figure 18, and the third gear 24 is nested on the corresponding rotating shaft 17; the installation drive ring 31 is installed on the rotating shaft 17 on the side where the third gear 24 is installed; as shown in Figure 15, three The first rotating shaft 25 is evenly installed on the end surface of the mounting drive ring 31 on the side close to the third gear 24; the three second gears 23 are respectively installed on the three first rotating shafts 25; as shown in FIG. 19, the three The second gear 23 meshes with the third gear 24 respectively; as shown in FIG. 23 , the inner circular surface of the ring gear 20 has teeth; the outer circular surface of the ring gear 20 has teeth; Connecting ring 36; one end of the connecting ring 36 is installed with a mounting ring 37 through a bearing; as shown in FIG. The teeth mesh with the three second gears 23; as shown in Figure 20, one end of the fixed connection 32 is installed on the mounting ring 37; the second shaft 26 is installed at the other end of the fixed connection 32; as shown in Figure 15, the first The gear 21 is installed on the second rotating shaft 26; the first gear 21 meshes with the teeth on the outer circular surface of the toothed ring; as shown in FIG. 17, a T-shaped guide block 22 is installed at one end of the connecting plate 29; The fitting of the T-shaped guide block 22 and the T-shaped guide groove 27 on the placement ring 19 is installed on the outer circular surface of the placement ring 19; as shown in Figure 13, the arc-shaped baffle 12 is installed on the upper end of the connecting plate 29; Figure 14 As shown, the arc-shaped baffle 12 is matched with the test tube 2; as shown in FIG. 21, the trigger tooth plate 18 is installed on the side of the lower end of the connecting plate 29; as shown in FIG. 18, the trigger tooth plate 18 and the first gear 21 mesh.

The above-mentioned thirty placement mechanisms 1 are staggeredly installed on the centrifugal disc 3 in the initial state. As shown in Figure 1, the thirty placement mechanisms 1 are divided into two inner and outer circles; as shown in Figure 2, the placement mechanism installed in the inner circle Any one of the mechanisms 1 is staggered with the two adjacent placement mechanisms 1 in the outer ring; for the placement mechanism 1 in the inner ring, as shown in Figure 11, the two spring fixing plates 9 are respectively installed on the U-shaped fixing frame 11 Two ends of one side; as shown in Figure 12, two spring mounting plates 15 are installed on the outer circular surface of the drive ring 16; The first return spring 10; the test tube 2 passes through the drive ring 16; as shown in Figure 5, a first return spring 5 is installed between the sliding block 8 and the end face of the sliding T-shaped groove 4 close to the center of the centrifugal disc 3; In the placement mechanism 1 in the outer ring, two spring fixing plates 9 are respectively installed on both ends of one side of the U-shaped fixing frame 11; two spring mounting plates 15 are installed on the outer circular surface of the driving ring 16; A second return spring 35 is respectively installed between 15 and the corresponding two spring fixing plates 9; the test tube 2 passes through the drive ring 16; as shown in Figure 5, the sliding block 8 and the sliding T-shaped groove 4 are close to the centrifugal disc 3 A second return spring 6 is installed between one end face of the center.

The elasticity of the first return spring 10 is greater than that of the second return spring 35 ; the elasticity of the first return spring 5 is greater than that of the second return spring 6 .

The upper end of the above-mentioned T-shaped guide block 22 has a missing block; its function is to prevent the T-shaped guide block 22 from interfering with the test tube 2 during the moving process.

As shown in FIG. 16 , two limit slots 28 are symmetrically opened on both ends of the bottom side of the T-shaped guide groove 27 ; two limit installation grooves 34 are symmetrically opened on both sides of the T-shaped guide block 22 ; As shown in FIG. 22 , the two sides of one end of the limit block 30 have two arc-shaped surfaces symmetrically; the ends of the two limit blocks 30 without the arc surface are respectively installed in the two limit installation grooves 34; A compression spring 33 is respectively installed between one end of the limit blocks 30 without an arc surface and the bottom ends of the corresponding two limit installation grooves 34; the two limit blocks 30 are respectively matched with the two limit grooves 28; Its function is that when the arc baffle 12 moves to the uppermost side, the arc baffle 12 is limited by the cooperation of the limit block 30 and the limit groove 28; the arc baffle 12 is prevented from falling under the centrifugal action. .

For the placement mechanism 1 in the inner ring, when the test tube 2 swings under the centrifugal force, the driving ring 16 is caused by the friction force between the driving ring 16 and the test tube 2, the centrifugal force of the driving ring 16 and the elastic force of the two first return springs 10. It is in a relatively static state with test tube 2.

For the placement mechanism 1 in the outer ring, when the test tube 2 swings under the centrifugal force, the driving ring 16 is driven by the friction force between the driving ring 16 and the test tube 2, the centrifugal force of the driving ring 16 and the elastic force of the two second return springs 35. It is in a relatively static state with test tube 2.

As shown in FIGS. 9 and 10 , the outer circular surface of the upper end of the test tube 2 has an arc-shaped chamfer 14 ; its function is to prevent the test tube 2 from falling off the placing ring 19 .

In summary:

The test tube 2 centrifugation mechanism designed in the present invention can centrally place the test tube 2 in the center of the centrifugal disk 3 instead of the outer side of the centrifugal disk 3 during use, which reduces the time for the test tube 2 to be placed.

In the present invention, the sliding block 8 is installed in the sliding T-shaped groove 4; the lower end of the supporting rod 7 is installed on the upper end of the sliding block 8; the lower end surface of the U-shaped fixing frame 11 is installed on the upper end of the supporting rod 7; The rotating shaft and the two rotating grooves 13 are installed on the U-shaped fixing frame 11; the test tube 2 is fixedly placed on the U-shaped fixing frame 11 by the placing ring 19; one end of the third gear 24 is installed on the U-shaped fixing frame 11. One of the two symmetrical end faces in the groove; the mounting drive ring 31 is mounted on the rotating shaft 17 on the side where the third gear 24 is mounted; the three first rotating shafts 25 are evenly mounted on the mounting drive ring 31 in the circumferential direction The end face on the side close to the third gear 24; the three second gears 23 are respectively mounted on the three first rotating shafts 25; the three second gears 23 are respectively meshed with the third gear 24; Connecting ring 36; one end of the connecting ring 36 is installed with a mounting ring 37 through a bearing; the ring gear 20 is mounted on the outer circular surface of the placing ring 19 through the mounting ring 37; The second gear 23 is meshed; one end of the fixed connection 32 is installed on the mounting ring 37; the second shaft 26 is installed on the other end of the fixed connection 32; the first gear 21 is installed on the second shaft 26; The teeth on the circular surface are engaged; one end of the connecting plate 29 is installed with a T-shaped guide block 22; The arc baffle 12 is installed on the upper end of the connecting plate 29; the arc baffle 12 is matched with the test tube 2; the trigger tooth plate 18 is installed on the side of the lower end of the connecting plate 29; In the initial state, thirty placement mechanisms 1 are staggeredly installed on the centrifugal disc 3, and the thirty placement mechanisms 1 are divided into two inner and outer circles; any one of the placement mechanisms 1 installed in the inner circle is adjacent to the outer circle. The two placement mechanisms 1 are staggered; for the placement mechanism 1 in the inner ring, two spring fixing plates 9 are respectively installed at both ends of one side of the U-shaped fixing frame 11; The spring mounting plate 15; a first return spring 10 is respectively installed between the two spring mounting plates 15 and the corresponding two spring fixing plates 9; the test tube 2 passes through the driving ring 16; the sliding block 8 and the sliding T-shaped groove 4 A first return spring 5 is installed between the end faces of one side close to the center of the centrifugal disc 3; for the placement mechanism 1 in the outer ring, two spring fixing plates 9 are respectively installed at both ends of one side of the U-shaped fixing frame 11; the drive ring Two spring mounting plates 15 are installed on the outer circular surface of 16; a second return spring 35 is respectively installed between the two spring mounting plates 15 and the corresponding two spring fixing plates 9; the test tube 2 passes through the driving ring 16 A second return spring 6 is installed between the sliding block 8 and the end face of the sliding T-shaped groove 4 near the center of the centrifugal disc 3; when the centrifugal disc 3 rotates, the centrifugal disc 3 will drive the sliding block installed on the centrifugal disc 3 8 rotates; the sliding block 8 rotates to drive the support rod 7 to rotate; the support rod 7 rotates to drive the U-shaped fixing frame 11 to rotate The U-shaped fixing frame 11 drives the test tube 2 to rotate by placing the ring 19; at the same time, under the action of centrifugal force; the sliding block 8 begins to slide to the outside of the centrifugal disk 3; The support rod 7 slides to drive the U-shaped fixing frame 11 to slide to the outside of the centrifugal disc 3; the U-shaped fixing frame 11 drives the test tube 2 to slide to the outside of the centrifugal disc 3 through the placing ring 19; during the sliding process of the test tube 2, the test tube 2 will also Swing occurs under centrifugal action; the swing of the test tube 2 will drive the placement ring 19 to swing; the swing of the placement ring 19 will drive the connecting plate 29, the T-shaped guide block 22, the trigger teeth, the installation connecting ring 36, the fixed connection 32 and the first The second rotating shaft 26 swings; the second rotating shaft 26 swings to drive the first gear 21 to swing; at the same time, the swing of the placement ring 19 will also drive the rotating shaft 17 to rotate; the rotation of the rotating shaft 17 will drive the installation drive ring 31 to rotate; It is installed on one of the two symmetrical end faces in the U-shaped groove on the U-shaped fixing frame 11; that is, the third gear 24 will not rotate when it is in a static state; therefore, the rotation of the installation drive ring 31 will make the three second gears 24 rotate. The gear 23 rotates; the rotation of the second gear 23 will drive the ring gear 20 to rotate; when the rotation speed of the ring gear 20 is greater than the swing speed of the first gear 21, the ring gear 20 will drive the first gear 21 to rotate; the first gear 21 The rotation will drive the trigger tooth plate 18 to move downward; the trigger tooth plate 18 moves downward to drive the connecting plate 29 to move downward; the downward movement of the connecting plate 29 drives the arc baffle 12 to move downward; when the test tube 2 swings to its axis When parallel to the centrifugal disc 3, the upper end of the arc baffle 12 just moves to be flush with the upper end face of the test tube 2, and the sliding block 8 also moves to the outermost side of the T-shaped chute; at this time, the test tube is moved under the action of centrifugal force. The sample in 2 is subjected to precipitation separation; when the precipitation separation is completed, the centrifugal disc 3 stops rotating; at this time, the sliding block 8 will gradually move to the center of the centrifugal disc 3 under the action of the first return spring 5 or the second return spring 6 ; The sliding block 8 drives the support rod 7, the U-shaped fixing frame 11, the placing ring 19 and the test tube 2 to gradually recover during the movement process; Driven by the ring 16, it gradually returns to the original vertical state; when the test tube 2 is restored to the vertical state, the test tube 2 will drive the placing ring 19 to rotate; the placing ring 19 rotates to drive the rotating shaft 17 to rotate; Drive the installation drive ring 31 to rotate; because one end of the third gear 24 is installed on one of the two symmetrical end faces in the U-shaped groove on the U-shaped fixing frame 11; that is, the third gear 24 will not rotate in a static state Therefore, the rotation of the installation drive ring 31 will make the three second gears 23 rotate; the rotation of the second gear 23 will drive the ring gear 20 to rotate; when the rotation speed of the ring gear 20 is greater than the swing speed of the first gear 21, the ring gear 20 will drive the first gear 21 to rotate; the rotation of the first gear 21 will drive the trigger tooth plate 18 to move upward; the trigger tooth plate 18 moves upward to drive the connecting plate 29 Move upward; the connecting plate 29 moves upward to drive the arc-shaped blocking plate 12 to move upward; because the test tube 2 will recover quickly under the action of the first return spring 10 and the second return spring 35; The sample spilled to the outside of the test tube 2; therefore, the present invention prevents the spillage of the sample in the test tube 2 by moving the arc baffle 12 on the upper side of the test tube 2; the role of the T-shaped guide groove 27 and the T-shaped guide block 22 in the present invention It plays a guiding role for the arc-shaped baffle 12 ; the arc-shaped baffle 12 just moves to the upper end of the test tube 2 to wrap the outer circular surface of the test tube 2 . In the present invention, the elasticity of the first return spring 10 is greater than the elasticity of the second return spring 35; its function is to prevent the test tube 2 located on the outer side from moving at a lower speed than the test tube 2 located on the inner side under the centrifugal action, causing the internal and external phases to move The adjacent test tube 2 collides to break the test tube 2; the elasticity of the first return spring 5 is greater than the elasticity of the second return spring 6; its function is to prevent the test tube 2 located on the outside from swinging under centrifugal action. Due to the swinging speed, the test tubes 2 are broken due to collision between the inner and outer adjacent test tubes 2 .

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS: When people use the test tube 2 centrifugal mechanism designed by the present invention, when the centrifugal disk 3 rotates, the centrifugal disk 3 will drive the sliding block 8 installed on the centrifugal disk 3 to rotate; the rotation of the sliding block 8 drives the support rod 7 to rotate The support rod 7 rotates to drive the U-shaped fixing frame 11 to rotate; the U-shaped fixing frame 11 drives the test tube 2 to rotate through the placing ring 19; at the same time, under the action of centrifugal force; the sliding block 8 starts to slide to the outside of the centrifugal disc 3; the sliding block 8 slides Drive the support rod 7 to slide to the outside of the centrifugal disc 3; the support rod 7 slides to drive the U-shaped fixing frame 11 to slide to the outside of the centrifugal disc 3; the U-shaped fixing frame 11 drives the test tube 2 to slide to the outside of the centrifugal disc 3 through the placement ring 19; During the sliding process of the test tube 2, the test tube 2 will also swing under the action of centrifugation; the swing of the test tube 2 will drive the placement ring 19 to swing; the swing of the placement ring 19 will drive the connecting plate 29, the T-shaped guide block 22 and the trigger tooth on the one hand. The tooth, the installation connecting ring 36, the fixed connection 32 and the second shaft 26 swing; the swing of the second shaft 26 drives the first gear 21 to swing; at the same time, the swing of the placing ring 19 will also drive the rotation shaft 17 to rotate; the rotation of the rotation shaft 17 will drive the installation The drive ring 31 rotates; because one end of the third gear 24 is installed on one of the two symmetrical end faces in the U-shaped groove on the U-shaped fixing frame 11; that is, the third gear 24 will not rotate when it is in a static state; so The rotation of the installation drive ring 31 will make the three second gears 23 rotate; the rotation of the second gears 23 will drive the ring gear 20 to rotate; when the rotation speed of the ring gear 20 is greater than the swing speed of the first gear 21, the ring gear 20 will rotate. will drive the first gear 21 to rotate; the rotation of the first gear 21 will drive the trigger tooth plate 18 to move downward; the trigger tooth plate 18 moves downward to drive the connecting plate 29 to move downward; the connecting plate 29 moves downward to drive the arc-shaped blocking plate 12 moves downward; when the test tube 2 swings to the point where its axis is parallel to the centrifugal disc 3, the upper end of the arc-shaped baffle 12 just moves to be flush with the upper end surface of the test tube 2, and the sliding block 8 also moves to the position of the T-shaped chute. Outermost; at this time, under the action of centrifugal force, the sample in test tube 2 is precipitated and separated.

Claims (6)

1. the test tube centrifugation method of the test tube centrifugation mechanism that is convenient to place is characterized in that: it comprises placement mechanism, test tube, centrifugal disc, sliding T-shaped groove, and wherein the end face of the centrifugal disc is evenly provided with thirty slides in the circumferential direction. T-slots; Thirty placement mechanisms are mounted on the centrifuge disc through thirty sliding T-slots; Thirty test tubes are respectively placed on the thirty placement mechanisms; The above-mentioned placement mechanism includes a support rod, a sliding block, a U-shaped fixed frame, an arc-shaped baffle, a rotating groove, a rotating shaft, a trigger tooth plate, a placing ring, a ring gear, a first gear, a T-shaped guide block, a second gear, a first Three gears, the first rotating shaft, the second rotating shaft, the T-shaped guide groove, the connecting plate, the installation drive ring, the fixed connection, the installation connection ring, the installation ring, wherein the sliding block is installed in the sliding T-shaped groove; the lower end of the support rod is installed in the The upper end of the sliding block; the upper ends of the two opposite sides of the U-shaped groove on the U-shaped fixing frame are symmetrically opened with two rotating grooves; the lower end surface of the U-shaped fixing frame is installed on the upper end of the support rod; There is a T-shaped guide groove that penetrates downward; two rotating shafts are evenly installed on the outer circular surface of the placing ring; the axes of the two rotating shafts are respectively parallel to the bottom end face of the T-shaped guide groove; the placing ring passes through the two rotating shafts. A rotating shaft and two rotating grooves are installed on the U-shaped fixing frame; the test tube is fixed on the U-shaped fixing frame through the placing ring; one end of the third gear is installed on the U-shaped fixing frame. Two symmetrical U-shaped grooves One of the end faces, and the third gear is nested on the corresponding rotating shaft; the installation drive ring is installed on the rotating shaft on the side where the third gear is installed; the three first rotating shafts are circumferentially evenly installed on the installation The end face of the drive ring is close to one side of the third gear; the three second gears are respectively mounted on the three first rotating shafts; the three second gears are respectively meshed with the third gear; the inner circular surface of the ring gear has teeth; There are teeth on the outer circular surface of the ring gear; one end of the ring gear is installed with a mounting connecting ring; one end of the mounting connecting ring is installed with a mounting ring through the bearing; the ring gear is installed on the outer circular surface of the placing ring through the mounting ring; The teeth on the inner circular surface mesh with the three second gears; one end of the fixed connection is installed on the mounting ring; the second rotating shaft is installed on the other end of the fixed connection; the first gear is installed on the second rotating shaft; The teeth on the outer surface of the toothed ring mesh; one end of the connecting plate is installed with a T-shaped guide block; the connecting plate is installed on the outer surface of the placing ring through the cooperation of the T-shaped guide block and the T-shaped guide groove on the placing ring; The arc-shaped baffle is installed on the upper end of the connecting plate; the arc-shaped baffle is matched with the test tube; the triggering tooth plate is installed on the side of the lower end of the connecting plate; the triggering tooth plate is engaged with the first gear; The above-mentioned thirty placement mechanisms are staggeredly installed on the centrifugal disc in the initial state, and the thirty placement mechanisms are divided into two inner and outer circles; any one of the placement mechanisms installed in the inner circle is placed with the adjacent two in the outer circle. The mechanism is staggered; for the placement mechanism in the inner ring, two spring fixing plates are respectively installed at both ends of one side of the U-shaped fixing frame; two spring mounting plates are installed on the outer circular surface of the drive ring; two spring mounting plates are installed A first return spring is installed between the corresponding two spring fixing plates; the test tube passes through the drive ring; a first return spring is installed between the sliding block and the end face of the sliding T-shaped groove near the center of the centrifugal disc; For the placement mechanism in the outer ring, two spring fixing plates are respectively installed at both ends of one side of the U-shaped fixing frame; two spring installation plates are installed on the outer circular surface of the drive ring; A second return spring is installed between the spring fixing plates; the test tube passes through the drive ring; a second return spring is installed between the sliding block and the end face of the sliding T-shaped groove close to the center of the centrifugal disc; The elasticity of the first return spring is greater than the elasticity of the second return spring; the elasticity of the first return spring is greater than the elasticity of the second return spring; When people use the centrifugal mechanism of the test tube 2 designed by the present invention, when the centrifugal disk 3 rotates, the centrifugal disk 3 will drive the sliding block 8 installed on the centrifugal disk 3 to rotate; the rotation of the sliding block 8 drives the support rod 7 to rotate; the support rod 7 The rotation drives the U-shaped fixing frame 11 to rotate; the U-shaped fixing frame 11 drives the test tube 2 to rotate through the placing ring 19; at the same time, under the action of centrifugal force; the sliding block 8 starts to slide to the outside of the centrifugal disk 3; the sliding block 8 slides to drive the support rod 7 Slide to the outside of the centrifugal disk 3; the support rod 7 slides to drive the U-shaped fixed frame 11 to slide to the outside of the centrifugal disk 3; the U-shaped fixed frame 11 drives the test tube 2 to slide to the outside of the centrifugal disk 3 through the placing ring 19; During the process, the test tube 2 will also swing under the centrifugal action; the swing of the test tube 2 will drive the placement ring 19 to swing; the swing of the placement ring 19 will drive the connecting plate 29, the T-shaped guide block 22, the trigger teeth, and the installation connection. The ring 36, the fixed connection 32 and the second shaft 26 swing; the swing of the second shaft 26 drives the first gear 21 to swing; at the same time, the swing of the placing ring 19 will also drive the rotation shaft 17 to rotate; the rotation of the rotation shaft 17 will drive the installation drive ring 31 to rotate ; Because one end of the third gear 24 is installed on one of the two symmetrical end faces in the U-shaped groove on the U-shaped fixing frame 11; that is, the third gear 24 will not rotate in a static state; so install the drive ring 31 The rotation will make the three second gears 23 rotate; the rotation of the second gear 23 will drive the ring gear 20 to rotate; when the rotation speed of the ring gear 20 is greater than the swing speed of the first gear 21 , the ring gear 20 will drive the first gear 20 to rotate. The gear 21 rotates; the rotation of the first gear 21 will drive the trigger tooth plate 18 to move downward; the downward movement of the trigger tooth plate 18 drives the connecting plate 29 to move downward; the downward movement of the connecting plate 29 drives the arc baffle 12 to move downward ; When the test tube 2 swings to its axis parallel to the centrifugal disc 3, the upper end of the arc baffle 12 just moves to be flush with the upper end face of the test tube 2, and the sliding block 8 also just moves to the outermost side of the T-shaped chute; this Under the action of centrifugal force, the sample in test tube 2 is precipitated and separated; When people use the centrifugal mechanism of the test tube 2 designed by the present invention, when the centrifugal disk 3 rotates, the centrifugal disk 3 will drive the sliding block 8 installed on the centrifugal disk 3 to rotate; the rotation of the sliding block 8 drives the support rod 7 to rotate; the support rod 7 The rotation drives the U-shaped fixing frame 11 to rotate; the U-shaped fixing frame 11 drives the test tube 2 to rotate through the placing ring 19; at the same time, under the action of centrifugal force; the sliding block 8 starts to slide to the outside of the centrifugal disk 3; the sliding block 8 slides to drive the support rod 7 Slide to the outside of the centrifugal disk 3; the support rod 7 slides to drive the U-shaped fixed frame 11 to slide to the outside of the centrifugal disk 3; the U-shaped fixed frame 11 drives the test tube 2 to slide to the outside of the centrifugal disk 3 through the placing ring 19; During the process, the test tube 2 will also swing under the centrifugal action; the swing of the test tube 2 will drive the placement ring 19 to swing; the swing of the placement ring 19 will drive the connecting plate 29, the T-shaped guide block 22, the trigger teeth, and the installation connection. The ring 36, the fixed connection 32 and the second shaft 26 swing; the swing of the second shaft 26 drives the first gear 21 to swing; at the same time, the swing of the placing ring 19 will also drive the rotation shaft 17 to rotate; the rotation of the rotation shaft 17 will drive the installation drive ring 31 to rotate ; Because one end of the third gear 24 is installed on one of the two symmetrical end faces in the U-shaped groove on the U-shaped fixing frame 11; that is, the third gear 24 will not rotate in a static state; so install the drive ring 31 The rotation will make the three second gears 23 rotate; the rotation of the second gear 23 will drive the ring gear 20 to rotate; when the rotation speed of the ring gear 20 is greater than the swing speed of the first gear 21 , the ring gear 20 will drive the first gear 20 to rotate. The gear 21 rotates; the rotation of the first gear 21 will drive the trigger tooth plate 18 to move downward; the downward movement of the trigger tooth plate 18 drives the connecting plate 29 to move downward; the downward movement of the connecting plate 29 drives the arc baffle 12 to move downward ; When the test tube 2 swings to its axis parallel to the centrifugal disc 3, the upper end of the arc baffle 12 just moves to be flush with the upper end face of the test tube 2, and the sliding block 8 also just moves to the outermost side of the T-shaped chute; this Under the action of centrifugal force, the sample in the test tube 2 is precipitated and separated. 2 . The test tube centrifugation method of a test tube centrifuge mechanism that is easy to place according to claim 1 , wherein the upper end of the T-shaped guide block has a missing block. 3 . 3. the test tube centrifugation method of a kind of test tube centrifugation mechanism that is convenient to place according to claim 1, it is characterized in that: the teeth that have on the outer circular surface of the above-mentioned gear ring have missing teeth; Two limit slots are symmetrically opened on the end face; two limit installation slots are symmetrically opened on both sides of the T-shaped guide block; two arc surfaces are symmetrically arranged on both sides of one end of the limit block; two One end of the limit block without arc surface is installed in the two limit installation grooves respectively; one end without arc surface on the two limit blocks and the bottom ends of the corresponding two limit installation grooves are respectively installed with one Compression spring; two limit blocks are matched with two limit slots respectively. 4. the test tube centrifugation method of a kind of convenient test tube centrifuge mechanism for placing according to claim 1 is characterized in that: above-mentioned for the placement mechanism in the inner ring, when the test tube swings under centrifugal force, the friction force between the drive ring and the test tube is , The centrifugal force of the driving ring and the elastic force of the two first return springs make the driving ring and the test tube in a relatively static state. 5. the test tube centrifugation method of a kind of test tube centrifugation mechanism that is convenient to place according to claim 1, it is characterized in that: above-mentioned for the placement mechanism in the outer ring, when the test tube swings under centrifugal force, in the drive ring and the test tube friction force The centrifugal force of the driving ring and the elastic force of the two second return springs make the driving ring and the test tube in a relatively static state. 6 . The test tube centrifugation method of a test tube centrifuge mechanism that is easy to place according to claim 1 , wherein the outer circular surface of the upper end of the test tube has an arc-shaped chamfer. 7 .

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