Table type high-speed centrifugal machine

Abstract

The utility model belongs to the technical field of medical examination and detection, and discloses a table type high-speed centrifugal machine which comprises a machine box, and the machine box is a hollow rectangular box with the front wall face capable of being turned over to be opened. The motor is fixedly connected to the interior of a cavity of the machine box, a support is further fixedly connected to the interior of the cavity of the machine box, a rotating shaft and a placing structure are rotationally connected to the top of the support, and the placing structure can be used for conveniently placing a test tube in the cavity of the machine box for centrifugal separation and comprises a base disc, a movable groove, a clamping ring and an abutting block; the movable groove is formed in the top of the base disc in a penetrating mode, the clamping ring is rotationally connected into the movable groove, the abutting block is slidably connected to the wall face of the clamping ring, and the placement structure can drive the test tube to be in an inclined state when fixing the test tube and centrifuging through the clamping ring which is in a horizontal state when fixing the test tube, so that the centrifugal effect is improved while the test tube is prevented from toppling.

Description

Technical Field

[0001] The utility model belongs to the field of medical inspection and detection, and specifically relates to a desktop high-speed centrifuge. Background Art

[0002] A centrifuge is a machine that uses centrifugal force to separate liquid from solid particles or components in a mixture of liquid and liquid.

[0003] The prior art (publication number: CN219631599U) discloses a centrifuge for medical examination, which comprises a centrifuge housing, a fixing seat is fixed at the bottom of the centrifuge housing, a groove is provided at the bottom of the fixing seat, a motor is arranged in the groove, a rotating shaft is arranged on the output shaft of the motor, the rotating shaft passes through the top of the fixing seat and is rotatably connected to the fixing seat through a bearing, and a plurality of rotating seats are mounted on the rotating shaft.

[0004] In the prior art, a test tube to be centrifuged is placed in a circular hole on a concave disc in a device, and the disc is driven to rotate by the rotation of the device to centrifuge the test tube on the disc. In the prior art, a plurality of circular holes are opened on the wall of the disc so that a plurality of test tubes can be centrifuged simultaneously. However, because the disc is concave in the prior art, the test tubes are mutually conflicted when placed in the circular groove, which makes it inconvenient to place the test tube each time and may also cause the test tube to break.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] In order to solve the technical problem that the above-mentioned prior art is inconvenient in placing the test tube, the basic concept of the technical solution adopted by the utility model is:

[0007] A desktop high-speed centrifuge, comprising:

[0008] The chassis is a hollow rectangular box whose front wall can be flipped open;

[0009] The motor is fixedly connected in the cavity of the chassis, and a bracket is also fixedly connected in the cavity of the chassis. The top of the bracket is rotatably connected to a rotating shaft, and the rotating shaft is cylindrical. The motor can drive the rotating shaft to rotate;

[0010] The placement structure can facilitate the placement of the test tube in the chassis cavity for centrifugal separation. The placement structure includes: a base plate, a movable groove, a clamping ring and a resistance block. The base plate is fixedly connected to the arc surface of the rotating shaft, the movable groove is opened through the top of the base plate, the clamping ring is rotatably connected in the movable groove, and the resistance block is slidably connected to the wall surface of the clamping ring.

[0011] As a preferred embodiment of the present utility model, the base plate is disc-shaped, the movable groove is a rectangular groove, and a plurality of identical movable grooves are circularly arrayed on the top of the base plate. The clamping ring is a capsule-shaped frame, and the abutting block is slidably connected in the cavity of the clamping ring.

[0012] As a preferred embodiment of the present utility model, the top of the abutting block is flush with the top of the clamping ring, and the rear wall surface of the abutting block is an arc surface recessed forward. The same clamping ring and abutting block are provided in each movable groove.

[0013] As a preferred embodiment of the present utility model, the placing structure further includes a rotating groove, a bottom block, a limiting block and a rotating column. The rotating grooves are symmetrically opened on the base plate wall surface in each movable groove, the bottom blocks are symmetrically and fixedly connected to the bottom of the base plate at each movable groove, the limiting blocks are fixedly connected to the side wall surface of the bottom block, and the rotating columns are symmetrically and fixedly connected to both sides of the clamping ring.

[0014] As a preferred embodiment of the present utility model, the bottom block is in the shape of a rectangular plate, the limiting block is in the shape of a right-angled triangle block, the same limiting blocks are provided on the side wall surfaces of each bottom block, the limiting blocks on the symmetric bottom block wall surfaces at the bottom of each movable groove face each other, the thickness of the limiting block is the same as the thickness of the clamping ring, the clamping ring can contact the inclined surface of the limiting block by turning downward, the rotating groove can adapt to the size of the rotating column, the rotating column is cylindrical, the rotating column is rotatably connected in the rotating groove, and two groups of the same placing structures are linearly arrayed on the arc surface of the rotating shaft.

[0015] As a preferred embodiment of the present utility model, an adjusting structure is provided on the wall surface of the clamping ring. The adjusting structure includes a sliding groove, a sliding block and an adjusting screw. The sliding grooves are symmetrically opened on both sides in the cavity of the clamping ring, the sliding blocks are symmetrically and fixedly connected to both side wall surfaces of the abutting block, and the adjusting screw is threadedly connected to the front wall surface of the clamping ring.

[0016] As a preferred embodiment of the present utility model, the sliding blocks on both sides of the abutting block can slide in the corresponding sliding grooves, the sliding grooves can adapt to the sliding of the sliding blocks, the rear wall surface of the adjusting screw can pass through the front wall surface of the clamping ring and is rotatably connected to the front wall surface of the abutting block, and the adjusting screw is threadedly connected to the wall surface penetrating the clamping ring.

[0017] The present utility model has the following beneficial effects compared with the prior art:

[0018] 1. By setting the placing structure, it is possible to carry out large-scale test tube centrifugation and at the same time facilitate the placement and fixation of test tubes in the cavity of the chassis. When the placing structure fixes the test tubes, the clamping ring in the horizontal state will drive the test tubes to be in an inclined state during centrifugation, thereby preventing the test tubes from tipping over and improving the centrifugation effect. Therefore, compared with the prior art, this solution can not only carry out large-scale centrifugation of test tubes, but also facilitate the placement and fixation of each test tube.

[0019] 2. By setting the adjustment structure, test tubes of different sizes can be fixed on the wall surface of the base plate for centrifugation. Since the adjustment structure drives the contact block to slide in the clamping ring cavity by rotating the adjustment screw rod, test tubes of different diameters can be fixed, effectively improving the application range of the device.

[0020] The following further describes in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. Description of the Drawings

[0021] In the drawings:

[0022] Figure 1 is a perspective view of the present utility model;

[0023] Figure 2 is a perspective view of the internal structure of the chassis cavity of the present utility model;

[0024] Figure 3 is a sectional view of the movable groove of the present utility model;

[0025] Figure 4 is a combined perspective view of the clamping ring and the contact block of the present utility model;

[0026] Figure 5 is an exploded schematic view of the clamping ring and the contact block of the present utility model.

[0027] In the figure: 20, chassis; 21, motor; 22, bracket; 23, rotating shaft; 30, base plate; 31, movable groove; 32, rotating groove; 33, bottom block; 34, limiting block; 35, clamping ring; 36, rotating column; 37, sliding groove; 40, contact block; 41, sliding block; 42, adjustment screw rod. Specific Implementation Manner

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments with reference to the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model.

[0029] As Figure 1 and Figure 2 shown, a bench-top high-speed centrifuge includes: a chassis 20, the chassis 20 being a hollow rectangular box with a front wall surface that can be flipped open;

[0030] a motor 21, the motor 21 being fixedly connected in the cavity of the chassis 20. A bracket 22 is also fixedly connected in the cavity of the chassis 20. The top of the bracket 22 is rotatably connected to a rotating shaft 23. The rotating shaft 23 is cylindrical. The motor 21 can drive the rotating shaft 23 to rotate. The motor 21 is electrically connected to the corresponding power supply. This is an existing technology, so it will not be elaborated here.

[0031] As Figure 2 , Figure 3 ,Figure 4 and Figure 5 As shown, the placement structure can facilitate the placement of the test tube in the cavity of the chassis 20 for centrifugal separation. The placement structure includes: a base plate 30, a movable groove 31, a clamping ring 35 and an abutment block 40. The base plate 30 is fixedly connected to the arc surface of the rotating shaft 23, the movable groove 31 is opened through the top of the base plate 30, the clamping ring 35 is rotatably connected in the movable groove 31, and the abutment block 40 is slidably connected to the wall surface of the clamping ring 35.

[0032] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the base plate 30 is in the shape of a disk, the active groove 31 is in the shape of a rectangular groove, and the active groove 31 has a plurality of identical active grooves 31 in a circular array on the top of the base plate 30. The clamping ring 35 is in the shape of a capsule, and the abutment block 40 is slidably connected in the cavity of the clamping ring 35. The top of the abutment block 40 is flush with the top of the clamping ring 35, and the rear wall of the abutment block 40 is in the shape of an arc surface concave forward. The same clamping ring 35 and abutment block 40 are arranged in each active groove 31. The placement structure also includes a rotating groove 32, a bottom block 33, a limiting block 34 and a rotating column 36. The rotating groove 32 is symmetrically opened on the wall surface of the base plate 30 in each active groove 31, and the bottom block 33 is symmetrically fixedly connected to the bottom of the base plate 30 at each active groove 31. Then, the limit block 34 is fixedly connected to the side wall surface of the bottom block 33, and the rotating column 36 is symmetrically fixedly connected on both sides of the clamping ring 35. The bottom block 33 is in the shape of a rectangular plate, and the limit block 34 is in the shape of a right-angled triangle block. The side wall surface of each bottom block 33 is provided with the same limit block 34. The limit blocks 34 on the symmetrical bottom block 33 wall surface at the bottom of each active groove 31 face each other. The thickness of the limit block 34 is consistent with the thickness of the clamping ring 35. The clamping ring 35 can contact the inclined surface of the limit block 34 by turning downward. The rotating groove 32 can adapt to the size of the rotating column 36. The rotating column 36 is cylindrical and is rotatably connected in the rotating groove 32. The arc surface linear array of the rotating shaft 23 is provided with two sets of the same placement structure;

[0033] During specific use, when the test tubes to be centrifuged are loaded with the liquid to be centrifuged, the front wall of the chassis 20 can be flipped open and the test tubes can be placed in any cavity of the clamping ring 35 on the wall of the base plate 30. At this time, the abutment block 40 will abut the test tube in the cavity of the clamping ring 35. After all the test tubes are placed, the front wall of the chassis 20 can be closed and the power of the motor 21 can be turned on. When the power is turned on, the motor 21 can drive the shaft 23 to rotate on the top of the bracket 22, and the shaft 23 can drive the base plate 30 to rotate at the same time. The base plate 30 can When rotating, all the clamping rings 35 and the abutment blocks 40 on the wall are driven to rotate simultaneously, and the clamping rings 35 and the abutment blocks 40 can drive the fixed test tubes to be centrifuged. When the base plate 30 rotates, the clamping rings 35 will turn downward due to inertia, and the rotating column 36 can rotate in the rotating groove 32. The clamping ring 35 can rotate until it contacts the inclined surface of the limit block 34. At this time, the test tube and the clamping ring 35 will be tilted and centrifuged. After the centrifugation of the test tube is completed, the power can be turned off and the front wall of the chassis 20 can be opened to remove the test tubes from the cavity of the chassis 20 one by one.

[0034] To summarize, by setting up a placement structure, large quantities of test tubes can be centrifuged while the test tubes can be placed and fixed in the cavity of the chassis 20. The placement structure will be in a horizontal state when fixing the test tubes through the clamping ring 35, which will drive the test tubes to an inclined state when fixing the test tubes and centrifuging, thereby preventing the test tubes from tipping over and improving the centrifugal effect. Therefore, compared with the prior art, this solution can not only carry out large-scale centrifugation of test tubes, but also facilitate the placement and fixation of each test tube.

[0035] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the wall surface of the clamping ring 35 is provided with an adjustment structure, which includes a slide groove 37, a slider 41 and an adjustment screw 42. The slide groove 37 is symmetrically opened on both sides of the cavity of the clamping ring 35, and the slider 41 is symmetrically fixedly connected to the wall surfaces on both sides of the abutment block 40. The adjustment screw 42 is threadedly connected to the front wall surface of the clamping ring 35. The sliders 41 on both sides of the abutment block 40 can slide in the corresponding slide grooves 37, and the slide grooves 37 can adapt to the sliding of the sliders 41. The rear wall surface of the adjustment screw 42 can pass through the front wall surface of the clamping ring 35 and be rotatably connected to the front wall surface of the abutment block 40. The adjustment screw 42 is threadedly connected to the wall surface penetrating the clamping ring 35.

[0036] In specific use, when the test tube is placed in the cavity of the clamping ring 35 and between the arc surface of the abutment block 40, if there is a gap between the test tube and the clamping ring 35 or the arc surface of the abutment block 40, the adjusting screw 42 is rotated, and the adjusting screw 42 can drive the abutment block 40 to translate toward the inner wall surface of the cavity of the clamping ring 35 through the threaded connection with the wall surface of the clamping ring 35, thereby clamping the wall surface of the test tube between the inner wall surface of the cavity of the clamping ring 35 and the arc surface of the abutment block 40;

[0037] In summary, by setting up an adjustment structure, test tubes of different sizes can be fixed on the wall of the base plate 30 for centrifugation, because the adjustment structure drives the resistance block 40 to slide in the cavity of the clamping ring 35 by rotating the adjustment screw 42, thereby fixing test tubes of different diameters, which effectively improves the application range of the device.

[0038] Working principle: when the test tubes to be centrifuged are loaded with the liquid to be centrifuged, the front wall of the chassis 20 can be flipped open and the test tubes can be placed in any cavity of the clamping ring 35 on the wall of the base plate 30. At this time, the abutment block 40 will abut the test tube in the cavity of the clamping ring 35. After all the test tubes are placed, the front wall of the chassis 20 can be closed and the power of the motor 21 can be turned on. When the power is turned on, the motor 21 can drive the shaft 23 to rotate on the top of the bracket 22, and the shaft 23 can drive the base plate 30 to rotate at the same time. The base plate 30 can rotate at the same time. When the base plate 30 rotates, the clamping ring 35 will flip downward due to inertia, the rotating column 36 can rotate in the rotating groove 32, and the clamping ring 35 can rotate until it contacts the inclined surface of the limit block 34. At this time, the test tube and the clamping ring 35 will be inclined and centrifugal. After the centrifugation of the test tube is completed, the power can be turned off, the front wall of the chassis 20 can be opened, and the test tubes can be removed one by one from the cavity of the chassis 20.

[0039] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A desktop high-speed centrifuge, characterized in that, include: The chassis (20) is a hollow rectangular box whose front wall can be flipped open; A motor (21), the motor (21) is fixedly connected in the cavity of the chassis (20), a bracket (22) is also fixedly connected in the cavity of the chassis (20), a rotating shaft (23) is rotatably connected to the top of the bracket (22), the rotating shaft (23) is cylindrical, and the motor (21) can drive the rotating shaft (23) to rotate; The placement structure can facilitate the placement of the test tube in the cavity of the chassis (20) for centrifugal separation. The placement structure comprises: a base plate (30), a movable groove (31), a clamping ring (35) and a resistance block (40). The base plate (30) is fixedly connected to the arc surface of the rotating shaft (23), the movable groove (31) is penetrated and opened on the top of the base plate (30), the clamping ring (35) is rotatably connected in the movable groove (31), and the resistance block (40) is slidably connected to the wall surface of the clamping ring (35).

2. The tabletop high-speed centrifuge according to claim 1, wherein, The base plate (30) is in the shape of a disc, the active groove (31) is in the shape of a rectangular groove, a plurality of the same active grooves (31) are arranged in a circular array on the top of the base plate (30), the clamping ring (35) is in the shape of a capsule, and the abutment block (40) is slidably connected in the cavity of the clamping ring (35).

3. The tabletop high-speed centrifuge according to claim 2, wherein, The top of the abutment block (40) is flush with the top of the clamping ring (35), the rear wall of the abutment block (40) is an arc surface that is concave forward, and the same clamping ring (35) and abutment block (40) are arranged in each movable groove (31).

4. A bench-top high-speed centrifuge according to claim 1, wherein, The placement structure further comprises a rotating groove (32), a bottom block (33), a limiting block (34) and a rotating column (36); the rotating groove (32) is symmetrically opened on the wall surface of the base plate (30) in each active groove (31); the bottom block (33) is symmetrically fixedly connected to the bottom of the base plate (30) at each active groove (31); the limiting block (34) is fixedly connected to the side wall surface of the bottom block (33); and the rotating column (36) is symmetrically fixedly connected to both sides of the clamping ring (35).

5. The tabletop high-speed centrifuge according to claim 4, wherein, The bottom block (33) is in the shape of a rectangular plate, and the limiting block (34) is in the shape of a right-angled triangle block. The side wall surface of each bottom block (33) is provided with the same limiting block (34). The limiting blocks (34) on the wall surface of the symmetrical bottom block (33) at the bottom of each active groove (31) face each other. The thickness of the limiting block (34) is consistent with the thickness of the clamping ring (35). The clamping ring (35) can be turned downward and contacted with the inclined surface of the limiting block (34). The rotating groove (32) can adapt to the size of the rotating column (36). The rotating column (36) is cylindrical and is rotatably connected in the rotating groove (32). The arc surface linear array of the rotating shaft (23) is provided with two groups of the same placement structure.

6. The tabletop high-speed centrifuge according to claim 1, wherein The wall surface of the clamping ring (35) is provided with an adjustment structure, which includes a slide groove (37), a slider (41) and an adjustment screw (42). The slide groove (37) is symmetrically opened on both sides of the cavity of the clamping ring (35), the slider (41) is symmetrically fixedly connected to the two side walls of the abutment block (40), and the adjustment screw (42) is threadedly connected to the front wall surface of the clamping ring (35).

7. A tabletop high-speed centrifuge according to claim 6, characterized in that, The sliders (41) on both sides of the abutment block (40) can slide in the corresponding slide grooves (37), the slide grooves (37) can adapt to the sliding of the sliders (41), the rear wall surface of the adjustment screw (42) can pass through the front wall surface of the clamping ring (35) and be rotatably connected to the front wall surface of the abutment block (40), and the adjustment screw (42) is threadedly connected to the wall surface penetrating the clamping ring (35).

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