Anti-falling table type low-speed centrifugal machine

Abstract

The utility model relates to the field of centrifugal machines, and discloses an anti-falling table type low-speed centrifugal machine which comprises a centrifugal machine body, a containing space arranged in the centrifugal machine body, a rotating disc arranged at the bottom of the containing space in a rotating mode, and a containing disc fixed to the rotating disc through a fixing part and used for containing test tubes. The fixing part comprises an extrusion plate which is rotationally arranged on the inner wall of the rotating disc and can be overturned to the position above the containing disc to extrude the containing disc when the containing disc is placed in the rotating disc, and an overturning part which drives the extrusion plate to be overturned to the top face of the containing disc to press the containing disc in the process that the containing disc is placed on the rotating disc is arranged below the extrusion plate. According to the mechanism, the extrusion plate can be driven by the arranged overturning part to be overturned to the position above the containing disc when the containing disc is loaded into the rotating disc, the containing disc is extruded, and therefore the probability that the containing disc loaded into the rotating disc is disengaged from the rotating disc is reduced.

Description

Technical Field

[0001] The utility model relates to the field of centrifuges, in particular to a detachable desktop low-speed centrifuge. Background Art

[0002] Low-speed centrifuges can be widely used in the fields of clinical medicine, biochemistry, immunology, blood stations, etc., and are conventional instruments for centrifugal precipitation in laboratories.

[0003] Chinese Patent No. CN218013385U discloses a desktop low-speed centrifuge, including a low-speed centrifuge main body. The top of the low-speed centrifuge main body is rotatably connected with a cover plate. A placement groove is opened at the top of the low-speed centrifuge main body. A connection disk is arranged inside the placement groove. The top of the connection disk is connected with a placement disk. A plurality of connection sleeves are fixedly installed on the top of the placement disk. The top of the connection sleeve is connected with a connection plate. A support plate is installed on the top of the connection plate. A limit sleeve is installed on the top of the support plate. A threaded rod penetrates through the outer wall of the limit sleeve, and the bottom end of the threaded rod penetrates inside the limit sleeve. The bottom end of the threaded rod is rotatably connected with a limit plate. A plurality of first connection grooves are circumferentially arranged on the inner circumference of the connection disk. On the outer wall of the placement disk, first connection blocks corresponding to the first connection grooves in number and position are circumferentially arranged and can be inserted into the first connection grooves to realize the connection between the placement disk and the connection disk.

[0004] In the above structure, when the samples in the test tubes need to be placed in the centrifuge, first, the test tubes filled with samples are successively placed in the limit sleeves on the placement disk. Then, the threaded rod is rotated so that the limit plate arranged at one end of the threaded rod presses the test tubes inserted into the limit sleeves, reducing the probability of the test tubes falling out of the limit sleeves. Finally, the placement disk is installed in the connection disk inside the low-speed centrifuge main body. However, the fixation between the placement disk and the connection disk is realized by the plug-in fit of the first connection blocks outside the placement disk and the first connection grooves on the connection disk, and the cooperation stability is poor. Summary of the Utility Model

[0005] Aiming at the disadvantage that the fixation between the placement disk and the connection disk in the prior art is realized by the plug-in fit of the first connection blocks outside the placement disk and the first connection grooves on the connection disk, and the cooperation stability is poor, the utility model provides a detachable desktop low-speed centrifuge that can reduce the probability of the installation disk with test tubes disengaging from the rotating disk inside the low-speed centrifuge.

[0006] To solve the above technical problems, the utility model is solved by the following technical solutions:

[0007] An anti - detachment table - top low - speed centrifuge, comprising a centrifuge body and a placement space arranged inside the centrifuge body. A rotating disk is rotatably arranged at the bottom of the placement space. A placement disk for placing test tubes is fixed to the rotating disk through a fixing component. The fixing component includes a pressing plate rotatably arranged on the inner wall of the rotating disk, which can be flipped above the placement disk to press the placement disk when the placement disk is inserted into the rotating disk. Below the pressing plate, there is a flipping component that drives the pressing plate to flip to the top surface of the placement disk to press the placement disk tightly during the process of placing the placement disk onto the rotating disk.

[0008] With the above - mentioned solution, the flipping component can drive the pressing plate to flip above the placement disk and press the placement disk when the placement disk is inserted into the rotating disk, thereby reducing the probability of the placement disk inserted into the rotating disk falling out of the rotating disk. And fixing the rotating disk and the placement disk through the fixing component enables the rotating disk to be detached from the centrifuge body, facilitating the operator to clean the inside of the centrifuge body.

[0009] Preferably, the flipping component includes a flipping plate arranged below the pressing plate and parallel to the pressing plate, which can abut against the bottom of the placement disk when the placement disk is inserted into the placement disk. At one end of the flipping plate close to the inner wall of the rotating disk, there is a connecting plate with both ends respectively connected to the flipping plate and the pressing plate. The distance between the flipping plate and the pressing plate is equal to the thickness of the placement disk.

[0010] With the above - mentioned solution, the flipping plate can abut against the bottom surface of the placement disk when the placement disk is inserted into the placement disk. When the bottom surface of the placement disk abuts against the flipping plate, and then the placement disk is continuously inserted into the rotating disk, the bottom surface of the placement disk will press the flipping plate to flip. Since the flipping plate is connected to the pressing plate through the connecting plate, when the flipping plate rotates, it will press the pressing plate to rotate, so that the pressing plate flips above the placement disk to press the placement disk.

[0011] Preferably, an avoidance groove is arranged at the top of the placement disk, which rotates to a position directly opposite to the pressing plate and avoids the flipping of the pressing plate when the placement disk is taken off from the rotating disk. A blocking component is arranged between the placement disk and the rotating disk to reduce the automatic rotation of the placement disk in the rotating disk.

[0012] With the above - mentioned solution, the avoidance groove arranged on the pressing plate can provide a moving space for the pressing plate when the placement disk needs to be taken off from the rotating disk, facilitating the flipping of the pressing plate and the flipping plate, and facilitating the removal of the placement disk from the rotating disk. And the arranged blocking component can reduce the probability of the placement disk automatically rotating in the rotating disk and reduce the probability of the avoidance groove automatically rotating to a position directly opposite to the pressing plate during the use of the centrifuge.

[0013] Preferably, the blocking member includes at least one slot with an open top provided on the inner wall of the rotating disk, a limiting slot provided on the placing disk and facing the slot when the avoiding slot and the pressing plate are misaligned, and a limiting block that can be press-fitted into the slot and the limiting slot at the same time.

[0014] With the above solution, after the placing disk is inserted into the rotating disk, rotate the placing disk so that the limiting slot on the placing disk faces the slot on the rotating disk. At this time, the avoiding slot on the placing disk and the pressing plate in the rotating disk are in a misaligned state. At this time, the limiting block can be inserted into the limiting slot and the slot to limit the rotation of the placing disk, thereby reducing the probability that the avoiding slot and the pressing plate are aligned due to the rotation of the placing disk during the use of the centrifuge, and reducing the probability that the placing disk is pushed out of the rotating disk.

[0015] Preferably, a plurality of fixing members are circumferentially arranged on the placing disk.

[0016] With the above solution, arranging a plurality of fixing members circumferentially in the placing disk can further reduce the probability that the placing disk inserted into the rotating disk is separated from the rotating disk.

[0017] Preferably, mounting grooves corresponding to the fixing members in number and position are provided on the inner wall of the rotating disk. The fixing members are arranged in the mounting grooves, and a rotating shaft is horizontally penetrated through the connecting plate. Both ends of the rotating shaft are hinged to the two inner walls of the mounting groove.

[0018] With the above solution, the rotating shaft enables the fixing member to be flipped in the mounting groove, and the mounting groove provided on the inner wall of the rotating disk can accommodate part of the fixing member, thereby reducing the influence generated by the provided fixing member when the placing disk is inserted into the rotating disk.

[0019] Preferably, the connecting plate has a certain damping when flipping in the mounting groove.

[0020] With the above solution, setting a certain damping when the connecting plate flips in the mounting groove can keep the pressing plate and the flipping plate in their states when they flip to be inclined to the bottom of the rotating disk, thereby facilitating the placing disk to be inserted into the rotating disk.

[0021] Since the utility model adopts the above technical solutions, it has remarkable technical effects: the flipping member can drive the pressing plate to flip above the placing disk when the placing disk is inserted into the rotating disk and press the placing disk, thereby reducing the probability that the placing disk inserted into the rotating disk slips out of the rotating disk, and fixing the rotating disk and the placing disk through the fixing member, so that the rotating disk can be detached from the centrifuge body, thereby facilitating the operator to clean the inside of the centrifuge body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is an axonometric view of a detachable desktop low-speed centrifuge in this embodiment;

[0023] Figure 2 is Figure 1 An enlarged view of part A in

[0024] Figure 3 An isometric view of the extrusion plate and the avoidance groove facing each other in this embodiment;

[0025] Figure 4 is Figure 3 An enlarged view of part B in

[0026] Figure 5 An isometric view of the rotating disk in this embodiment;

[0027] Figure 6 An isometric view of the fixing component in this embodiment.

[0028] The names of the parts referred to by the numerical labels in the above drawings are as follows: 1, centrifuge body; 2, placement space; 3, rotating disk; 4, placement tray; 5, extrusion plate; 6, flipping plate; 7, connecting plate; 8, avoidance groove; 9, slot; 10, limiting groove; 11, limiting block; 12, installation groove; 13, rotating shaft. Specific embodiments

[0029] The present invention will be further described in detail below in conjunction with the drawings and embodiments.

[0030] Embodiment

[0031] A detachable desktop low-speed centrifuge, referring to Figures 1-2 , includes a centrifuge body 1, a placement space 2 provided inside the centrifuge body 1, a rotating disk 3 rotatably arranged at the bottom of the placement space 2, a placement tray 4 for placing test tubes is fixed to the rotating disk 3 through a fixing component, the fixing component includes an extrusion plate 5 rotatably arranged on the inner wall of the rotating disk 3 and can be flipped above the placement tray 4 to extrude the placement tray 4 when the placement tray 4 is inserted into the rotating disk 3, and a flipping component is arranged below the extrusion plate 5 to drive the extrusion plate 5 to flip to the top surface of the placement tray 4 to tightly press the placement tray 4 during the process of placing the placement tray 4 onto the rotating disk 3.

[0032] Referring to Figures 1-6, the flipping component includes a flipping plate 6 disposed below the extrusion plate 5 and parallel to the extrusion plate 5, which can abut against the bottom of the placement plate 4 when the placement plate 4 is inserted into the placement plate 4. At one end of the flipping plate 6 close to the inner wall of the rotating disk 3, there is a connecting plate 7 with both ends connected to the flipping plate 6 and the extrusion plate 5 respectively. The distance between the flipping plate 6 and the extrusion plate 5 is equal to the thickness of the placement plate 4. The fixing components are circumferentially arranged on the placement plate 4 in several numbers. In this embodiment, four fixing components are provided. On the inner wall of the rotating disk 3, there are installation grooves 12 corresponding to the fixing components in number and position one by one. The fixing components are disposed in the installation grooves 12, and a rotating shaft 13 is horizontally penetrated through the connecting plate 7. Both ends of the rotating shaft 13 are hinged to the two inner walls of the installation groove 12, and the connecting plate 7 has a certain damping when flipping in the installation groove 12.

[0033] Reference Figures 1-4 , on the top of the placement plate 4, there is an avoidance groove 8 which rotates to a position opposite to the extrusion plate 5 and avoids the flipping of the extrusion plate 5 when the placement plate 4 is taken off from the rotating disk 3. Between the placement plate 4 and the rotating disk 3, there is a blocking component for reducing the automatic rotation of the placement plate 4 in the rotating disk 3. The blocking component includes at least one slot 9 with an open top disposed on the inner wall of the rotating disk 3, a limiting groove 10 disposed on the placement plate 4 which is opposite to the slot 9 when the avoidance groove 8 is misaligned with the extrusion plate 5, and a limiting block 11 which can be press-fitted into the slot 9 and the limiting groove 10 at the same time.

[0034] Specific fixing process: When the placement plate 4 containing test tubes needs to be installed into the rotating disk 3, first, rotate the extrusion plate 5 and the flipping plate 6 so that the extrusion plate 5 and the flipping plate 6 are in a state inclined to the bottom surface of the rotating disk 3. Then, insert the placement plate 4 into the rotating disk 3. During the process of inserting the placement plate 4 into the rotating disk 3, the bottom surface of the placement plate 4 will first abut against the surface of the flipping plate 6. As the placement plate 4 goes deeper into the rotating disk 3, the bottom surface of the placement plate 4 will push the flipping plate 6 to rotate. Since the flipping plate 6 is connected to the extrusion plate 5 through the connecting plate 7, when the flipping plate 6 flips, it will drive the extrusion plate 5 to rotate, so that the extrusion plate 5 gradually flips above the placement plate 4 to squeeze the placement plate 4, reducing the probability of the placement plate 4 coming out of the rotating disk 3. To facilitate the extrusion plate 5 to flip to the top surface of the placement plate 4 when the placement plate 4 is inserted into the rotating disk 3, when inserting the placement plate 4 into the rotating disk 3, the avoidance groove 8 on the placement plate 4 can be aligned with the extrusion plate 5 first and then the placement plate 4 is inserted into the rotating disk 3. After the placement plate 4 is inserted into the rotating disk 3, the placement plate 4 can be rotated to make the limiting groove 10 on the placement plate 4 opposite to the slot 9 in the rotating disk 3. Then, the limiting block 11 is inserted into the limiting groove 10 and the slot 9 at the same time, so as to limit the rotation of the placement plate 4, reduce the probability that the avoidance groove 8 on the placement plate 4 is opposite to the extrusion plate 5 due to the automatic rotation of the placement plate 4 during the use of the centrifuge, and reduce the probability of the placement plate 4 coming out of the rotating disk 3.

[0035] The above are only the preferred embodiments of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements should also be regarded as within the protection scope of the present utility model.

Claims

1. An anti-dropping desktop low-speed centrifuge, comprising a centrifuge body (1), a placement space (2) arranged in the centrifuge body (1), a rotating disk (3) rotatably arranged at the bottom of the placement space (2), and a placement disk (4) for placing a test tube fixed to the rotating disk (3) through a fixing member, characterized in that: The fixing component comprises a pressing plate (5) rotatably arranged on the inner wall of the rotating disk (3) and capable of being turned over to the top of the placing disk (4) to press the placing disk (4) when the placing disk (4) is loaded into the rotating disk (3); and a turning component is arranged below the pressing plate (5) to drive the pressing plate (5) to turn over to the top surface of the placing disk (4) to press the placing disk (4) when the placing disk (4) is placed on the rotating disk (3).

2. The anti-dropping desktop low-speed centrifuge according to claim 1, characterized in that: The flipping component comprises a flipping plate (6) arranged below the extrusion plate (5) and parallel to the extrusion plate (5) and capable of abutting against the bottom of the placement plate (4) when the placement plate (4) is loaded into the placement plate (4); a connecting plate (7) is arranged at one end of the flipping plate (6) close to the inner wall of the rotating plate (3) and connected to the flipping plate (6) and the extrusion plate (5) at both ends; the distance between the flipping plate (6) and the extrusion plate (5) is equal to the thickness of the placement plate (4).

3. The anti-dropping desktop low-speed centrifuge according to claim 2, characterized in that: A relief groove (8) is provided on the top of the placement disk (4) for rotating to face the pressing plate (5) when the placement disk (4) is removed from the rotating disk (3) and for avoiding the turning of the pressing plate (5); and a blocking component for reducing the automatic rotation of the placement disk (4) in the rotating disk (3) is provided between the placement disk (4) and the rotating disk (3).

4. The anti-dropping desktop low-speed centrifuge according to claim 3, characterized in that: The blocking component comprises at least one slot (9) with an open top arranged on the inner wall of the rotating disk (3), a limiting slot (10) arranged on the placement disk (4) and facing the slot (9) when the avoidance slot (8) and the extrusion plate (5) are misaligned, and a limiting block (11) that can be simultaneously inserted into the slot (9) and the limiting slot (10) by interference fit.

5. The anti-dropping desktop low-speed centrifuge according to claim 2, characterized in that: A plurality of the fixing components are arranged circumferentially on the placement plate (4).

6. The anti-dropout desktop low-speed centrifuge according to claim 5, characterized in that: The inner wall of the rotating disk (3) is provided with mounting grooves (12) whose number and position correspond to the fixing components. The fixing components are arranged in the mounting grooves (12) and a rotating shaft (13) is horizontally passed through the connecting plate (7). The two ends of the rotating shaft (13) are hinged to the two inner walls of the mounting groove (12).

7. The anti-dropping desktop low-speed centrifuge according to claim 6, characterized in that: The connecting plate (7) has a certain damping when turning over in the mounting groove (12).

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