Blood centrifuge

Abstract

The utility model relates to the technical field of centrifugal machines, and discloses a blood centrifugal machine which comprises a machine box, a containing groove is formed in the top end of the machine box, a rotating shaft is rotationally connected to the bottom end of the containing groove, a rotor is inserted into the outer side of the rotating shaft, and limiting grooves are formed in the two sides of the top end of the rotating shaft. Mounting grooves are formed in the two sides of the inner side wall of the fixing ring, springs are fixedly connected to the inner side walls of the two mounting grooves, limiting blocks are fixedly connected to the other ends of the two springs, the other ends of the two limiting blocks are slidably connected to the interiors of the limiting grooves, positioning grooves are formed in the two sides of the inner side wall of the rotor, and positioning blocks are slidably connected to the interiors of the two positioning grooves. According to the utility model, the fixing ring is pulled upwards, and the limiting groove extrudes the limiting block and enables the limiting block to retract into the mounting groove when the fixing ring moves, so that the fixing ring is taken down from the top end of the rotating shaft, and the rotor is pulled upwards to take down the rotor from the outer side of the rotating shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, in particular to a blood centrifuge. Background Art

[0002] A centrifuge is a mechanical device that uses centrifugal force to separate different components in a mixture. It is widely used in many fields such as chemical industry, medicine, food, environmental protection, etc. For example, in the process of medical experimental research on blood, it is necessary to separate the red blood cells, white blood cells, platelets and plasma in the blood, so a centrifuge is needed. When using a centrifuge to separate blood, the test tube storing the blood needs to be placed inside the slot on the rotor.

[0003] When test tubes of different shapes need to be placed inside the centrifuge, the rotor inside the centrifuge needs to be replaced. When replacing the rotor, the bolts fixing the rotor need to be unscrewed and placed aside before replacing the rotor. However, since the removed bolts are too small, they are often lost due to accidents, affecting the normal use of the centrifuge. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a blood centrifuge, aiming to improve the problem in the prior art that when replacing the rotor, the bolts fixing the rotor need to be removed and placed aside, but the removed bolts are too small and are often lost accidentally, thus affecting the normal use of the centrifuge.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a blood centrifuge, comprising

[0006] A chassis, wherein a placement slot is provided on the top of the chassis;

[0007] A rotating shaft is rotatably connected to the bottom wall of the placement slot, and a rotor is inserted into the outer side of the middle portion;

[0008] Limiting grooves are respectively arranged on both sides of the top end of the rotating shaft;

[0009] A fixing ring, inserted on the outer side of the top end of the rotating shaft;

[0010] Two mounting grooves are respectively provided on both sides of the inner side wall of the fixing ring;

[0011] Two springs, one end of which is fixedly connected to the inner wall of the installation groove, the other end of the two springs is fixedly connected to the limiting block, the other ends of the two limiting blocks are slidably connected to the inside of the limiting groove, positioning grooves are provided on both sides of the inner wall of the rotor, and positioning blocks are slidably connected to the inside of the two positioning grooves, and the sides of the two positioning blocks close to each other are fixedly connected to the outside of the middle part of the rotating shaft, and the limiting blocks fix the fixing ring in the extended state.

[0012] As a further description of the above technical solution:

[0013] It also includes a plurality of grooves, which are respectively opened on both sides of the inner wall of the installation groove. The plurality of grooves are slidably connected with protrusions inside. The adjacent sides of the plurality of protrusions are respectively fixedly connected to the front and rear sides of the limit block. The protrusions are used to limit the limit block.

[0014] As a further description of the above technical solution:

[0015] A plurality of evenly distributed slots are provided on the outer side of the top end of the rotor, and the slots are used for placing test tubes.

[0016] As a further description of the above technical solution:

[0017] A cavity is provided inside the chassis, a motor is fixedly connected to the top wall of the cavity, and a driving end of the motor passes through the top wall of the cavity and is fixedly connected to the bottom end of the rotating shaft.

[0018] As a further description of the above technical solution:

[0019] A control panel is fixedly connected to the front end of the chassis, and a cover plate is hingedly connected to the rear side of the top end of the chassis, and the cover plate is used to seal the chassis.

[0020] As a further description of the above technical solution:

[0021] The four corners of the bottom end of the chassis are fixedly connected with screws, the outer sides of the screws are threadedly connected with sleeves, and the outer sides of the bottom ends of the sleeves are sleeved with suction cups, which are used to fix the chassis.

[0022] The utility model has the following beneficial effects:

[0023] In the utility model, the fixing ring is pulled upwards, and the limiting groove will squeeze the limiting block when the fixing ring moves, so that the limiting block retracts into the installation groove, thereby removing the fixing ring from the top of the rotating shaft, and pulling up the rotor to remove the rotor from the outside of the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a blood centrifuge proposed by the utility model;

[0025] Figure 2 This is a three-dimensional cross-sectional view of a rotor of a blood centrifuge proposed by the utility model;

[0026] Figure 3 This is a three-dimensional cross-sectional view of a fixing ring of a blood centrifuge proposed by the utility model;

[0027] Figure 4This is a three-dimensional cross-sectional view of a chassis of a blood centrifuge proposed by the utility model;

[0028] Figure 5 The utility model is a schematic diagram of the structure of a sleeve of a blood centrifuge.

[0029] Legend:

[0030] 1. Fixing ring; 2. Placement groove; 3. Cover plate; 4. Rotor; 5. Sleeve; 6. Chassis; 7. Control panel; 8. Shaft; 9. Positioning block; 10. Limiting groove; 11. Positioning groove; 12. Slot; 13. Mounting groove; 14. Screw; 15. Groove; 16. Limiting block; 17. Spring; 18. Bump; 19. Cavity; 20. Motor; 21. Suction cup. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-5, an embodiment provided by the utility model: a blood centrifuge comprises a chassis 6, a placement slot 2 is provided at the top of the chassis 6, a rotating shaft 8 is rotatably connected to the bottom end of the placement slot 2, a rotor 4 is plugged into the outer side of the rotating shaft 8, limiting slots 10 are provided on both sides of the top of the rotating shaft 8, a fixing ring 1 is slidably connected to the outer side of the top of the rotating shaft 8, mounting slots 13 are provided on both sides of the inner side wall of the fixing ring 1, springs 17 are fixedly connected to the inner side walls of the two mounting slots 13, the other ends of the two springs 17 are fixedly connected to limiting blocks 16, the other ends of the two limiting blocks 16 are slidably connected to the inside of the limiting slot 10, positioning slots 11 are provided on both sides of the inner side wall of the rotor 4, positioning blocks 9 are slidably connected to the inside of the two positioning slots 11, and the sides of the two positioning blocks 9 close to each other are fixedly connected to the outer side of the middle part of the rotating shaft 8, and the rotor 4 can be replaced upward when it is necessary to replace it. When the fixing ring 1 is pulled up, the limiting groove 10 pushes the limiting block 16 to retract into the installation groove 13, so that the fixing ring 1 is removed from the outside of the rotating shaft 8, and then the rotor 4 can be pulled upward to remove the rotor 4 from the outside of the rotating shaft 8, and then the new rotor 4 and the fixing ring 1 are successively sleeved onto the outside of the rotating shaft 8, and at the same time, the positioning block 9 enters the positioning groove 11 to preliminarily fix the rotor 4, and the spring 17 is used to push the limiting block 16 into the limiting groove 10 to fix the fixing ring 1 to the outside of the rotating shaft 8, and the fixing ring 1 is used to fix the rotor 4 in the vertical direction. The limiting block 16 and the limiting groove 10 are both semicircular. When the fixing ring 1 is pulled, the limiting groove 10 will cause extrusion to the limit, because the side of the limiting block 16 close to the limiting groove 10 is an arc-shaped limiting block 16, and the limiting block 16 will retract into the installation groove 13 when squeezed.

[0033] Fixing the rotor 4 by the fixing ring 1 allows the staff to remove the rotor 4 without using additional auxiliary tools, thereby allowing the staff to remove and replace the rotor 4 without carrying auxiliary tools, thereby not affecting the staff's subsequent operation of the centrifuge.

[0034] Grooves 15 are provided on the front and rear sides of the inner wall of the installation groove 13, and protrusions 18 are slidably connected inside the multiple grooves 15. The adjacent sides of the multiple protrusions 18 are fixedly connected to the front and rear sides of the limit block 16 respectively. When the spring 17 pushes the limit block 16 to move, the limit block 16 will drive the protrusion 18 to slide inside the groove 15. When the limit block 16 extends out of the installation groove 13 to a certain length, the protrusion 18 will contact the inner wall of the groove 15, thereby limiting the limit block 16 to prevent the spring 17 from completely pushing the limit block 16 out of the installation groove 13.

[0035] A plurality of evenly distributed slots 12 are provided on the outer side of the top end of the rotor 4 , and a test tube containing blood is placed into the mounting slot 13 to fix the test tube inside the rotor 4 .

[0036] A cavity 19 is opened inside the chassis 6, and a motor 20 is fixedly connected to the top wall of the cavity 19. The driving end of the motor 20 passes through the top wall of the cavity 19 and is fixedly connected to the bottom end of the rotating shaft 8. The motor 20 is started to rotate the rotating shaft 8, and the rotation of the rotating shaft 8 drives the rotor 4 to rotate, thereby separating the blood inside the test tube inside the rotor 4.

[0037] A control panel 7 is fixedly connected to the front end of the chassis 6 , and a cover plate 3 is hingedly connected to the rear side of the top end of the chassis 6 . The control panel 7 can be used to control the start of the motor 20 inside the chassis 6 .

[0038] The four corners of the bottom end of the chassis 6 are fixedly connected with screws 14, and the outer sides of multiple screws 14 are threadedly connected with sleeves 5. The outer sides of the bottom ends of multiple sleeves 5 are sleeved with suction cups 21. Rotating the sleeves 5 can make the screws 14 slide inside the sleeves 5, so as to raise the height of the chassis 6, and the suction cups 21 can be used to fix the chassis 6 to the desktop to prevent the vibration generated by the rotor 4 inside the chassis 6 during rotation from causing the chassis 6 to move on the desktop.

[0039] Working principle: After placing the test tube containing blood into the slot 12, the cover plate 3 is rotated by hand to seal the placement slot 2 at the top of the chassis 6, and then the motor 20 is started to drive the motor 20 to rotate the shaft 8. When the shaft 8 rotates, the positioning block 9 will drive the rotor 4 to rotate, and the blood in the test tube inside the rotor 4 can be centrifuged by the rotation of the rotor 4. When the rotor 4 needs to be replaced, the fixing ring 1 can be pulled upward. When the fixing ring 1 moves, the limit groove 10 will squeeze the limit block 16 and retract the limit block 16 into the installation groove 13, so that the fixing ring 1 is removed from the top of the shaft 8, and the rotor 4 is pulled up. Remove the rotor 4 from the outside of the rotating shaft 8, and sequentially sleeve the new rotor 4 and the fixing ring 1 onto the outside of the rotating shaft 8. At the same time, make the positioning block 9 enter the positioning groove 11 to preliminarily fix the rotor 4, and use the spring 17 to push the limit block 16 into the limit groove 10 to fix the fixing ring 1 to the outside of the rotating shaft 8, and use the fixing ring 1 to fix the rotor 4 in the vertical direction. When using the chassis 6, the sleeve 5 can be rotated to make the screw 14 extend out of the sleeve to raise the height of the chassis 6, and when using the chassis 6, the suction cup 21 can be used to fix the chassis 6 to the top of the desktop to prevent the chassis 6 from being displaced during use.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A blood centrifuge, characterized in that: include A chassis (6), wherein a placement slot (2) is provided at the top of the chassis (6); A rotating shaft (8) is rotatably connected to the bottom wall of the placement groove (2), and a rotor (4) is inserted into the outer side of the middle part; Two limiting grooves (10) are respectively provided on both sides of the top end of the rotating shaft (8); A fixing ring (1) inserted on the outer side of the top end of the rotating shaft (8); Two mounting grooves (13) are respectively provided on both sides of the inner wall of the fixing ring (1): Two springs (17) have one end fixedly connected to the inner wall of the installation groove (13), the other end of the two springs (17) are fixedly connected to the limiting block (16), the other end of the two limiting blocks (16) are slidably connected to the inside of the limiting groove (10), positioning grooves (11) are provided on both sides of the inner wall of the rotor (4), positioning blocks (9) are slidably connected to the inside of the two positioning grooves (11), the sides of the two positioning blocks (9) close to each other are fixedly connected to the outside of the middle part of the rotating shaft (8), and the limiting blocks (16) fix the fixing ring (1) in the extended state.

2. A blood centrifuge according to claim 1, characterized in that: It also includes a plurality of grooves (15) which are respectively arranged on both sides of the inner wall of the installation groove (13); a plurality of protrusions (18) are slidably connected inside the plurality of grooves (15); adjacent sides of the plurality of protrusions (18) are respectively fixedly connected to the front and rear sides of the limit block (16); and the protrusions (18) are used to limit the limit block (16).

3. A blood centrifuge according to claim 1, characterized in that: The outer side of the top end of the rotor (4) is provided with a plurality of evenly distributed slots (12), and the slots (12) are used to place test tubes.

4. A blood centrifuge according to claim 1, characterized in that: A cavity (19) is provided inside the chassis (6), a motor (20) is fixedly connected to the inner top wall of the cavity (19), and a driving end of the motor (20) passes through the inner top wall of the cavity (19) and is fixedly connected to the bottom end of the rotating shaft (8).

5. A blood centrifuge according to claim 1, characterized in that: The front end of the chassis (6) is fixedly connected to a control panel (7), and the rear side of the top end of the chassis (6) is hingedly connected to a cover plate (3), which is used to seal the chassis (6).

6. A blood centrifuge according to claim 1, characterized in that: The four corners of the bottom end of the chassis (6) are fixedly connected to screw rods (14), the outer sides of the plurality of screw rods (14) are threadedly connected to sleeves (5), and the outer sides of the bottom ends of the plurality of sleeves (5) are sleeved with suction cups (21), which are used to fix the chassis (6).

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