A centrifuge for test tubes

Abstract

This utility model discloses a test tube centrifuge, relating to the field of biochemical testing technology. The design features a control panel that allows for easy switching between test tube loading and unloading modes; clamping blocks hold the test tubes within the test tube holder, preventing shaking and collisions caused by gaps between the test tubes and the holder, thus facilitating stable centrifugation; and a top block elevates the centrifuged test tubes to a certain height, making them easier for operators to remove and eliminating the need for excessive gaps between the test tube holder and the test tubes, further mitigating shaking and collisions.

Description

Technical Field

[0001] This utility model relates to the field of biochemical testing technology, and in particular to a test tube centrifuge. Background Technology

[0002] Test tube centrifuges are widely used in sample separation and analysis in fields such as biology, medicine, and chemistry. Current test tube centrifuges have several test tube slots on a rotating drum, into which test tubes containing samples are placed for centrifugation. However, to facilitate the removal and placement of test tubes within the slots, the diameter of the slots should not be too small, and sufficient clearance must be maintained between the slots and the test tubes. This inevitably leads to some shaking or collision of the test tubes during centrifugation, affecting normal operation. Furthermore, to improve safety during centrifugation, the test tubes should typically be almost entirely within the slots, which increases the difficulty of removing them from the slots.

[0003] Therefore, those skilled in the art are dedicated to developing a test tube centrifuge that provides stable test tube positioning and convenient loading and unloading. Summary of the Invention

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is that the test tubes are inconvenient to pick up and put down in the existing test tube centrifuges, and the test tubes are easy to shake and collide in the test tube tank.

[0005] To achieve the above objectives, this utility model provides a test tube centrifuge, including a drum. The drum has several test tube slots evenly distributed around its circumference. Several inverted F-shaped sliding grooves are provided inside the drum corresponding to the test tube slots. An inverted F-shaped sliding rod is slidably disposed within each sliding groove. A clamping block is fixed to the upper crossbar end of the sliding rod, and a wedge-shaped top block is fixed to the lower crossbar end of the sliding rod. The sliding rod, clamping block, and top block form an integral structure that can slide radially within the sliding grooves of the drum. A central column extends upward from the top center of the drum. An integrally formed control plate and operating cylinder are fitted onto the central column. The control plate has several arc-shaped grooves evenly distributed around its circumference that correspond one-to-one with the top ends of the sliding rods. A locking nut that threadedly engages with the central column is provided above the operating cylinder.

[0006] The control panel is adapted to switch the slide bar between a first position and a second position by rotating it.

[0007] In the first position, the slide bar is close to the center of the drum, the clamping block is away from the test tube, and the top block is located below the test tube groove and lifts the test tube.

[0008] In the second position, the slide bar is away from the center of the drum, the clamping block holds the test tube, and the top block is away from the test tube groove.

[0009] The working principle of this utility model:

[0010] When placing the test tube, the slide bar is in the initial position of the first position, and the clamping block is in a position away from the test tube groove. The test tube is placed into the test tube groove, and at this time the test tube is supported above the top block. Rotate the operating cylinder and the control plate to move the slide bar to the second position. During this process, the top block moves away from the lower position of the test tube groove, and the test tube falls and is supported by the bottom of the test tube groove. Then, when the slide bar slides to the second position, the clamping block contacts the test tube and clamps it in the test tube groove. At this point, the placement of the test tube is completed and the centrifugation operation begins.

[0011] When removing the test tube, the operation is basically the opposite of placing the test tube. That is, rotate the operating cylinder and the control plate to move the slide bar to the first position, the clamping block moves away from the test tube slot and releases the clamp on the test tube. Then, when it reaches the second position, the top block moves to the bottom of the test tube slot, its inclined surface contacts the bottom of the test tube and lifts the test tube upward to a certain height, making it easy for the operator to remove the test tube from the test tube slot.

[0012] Preferably, a rubber pad is fixed inside the test tube groove on the side opposite to the clamping block. The rubber pad can cooperate with the clamping block to hold the test tube, making the test tube more stable.

[0013] Preferably, the end of the clamping block is an arc-shaped clamping surface that matches the shape of the test tube.

[0014] Preferably, a rubber pad is provided on the arc-shaped clamping surface of the clamping block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The control panel allows for easy switching between test tube handling and placement modes; the clamping block holds the test tubes within the test tube holder, preventing shaking and collisions caused by gaps between the test tubes and the holder, thus facilitating stable centrifugation; the top block lifts the centrifuged test tubes to a certain height, making it easier for operators to remove them, and also eliminating the need for excessive gaps between the test tube holder and the test tubes, further mitigating shaking and collisions. Attached Figure Description

[0017] Figure 1 This is a longitudinal sectional view of the present invention;

[0018] Figure 2 This is a top view of the control panel assembly of this utility model.

[0019] Figure label:

[0020] 1. Rotary drum; 2. Test tube trough; 3. Slide groove; 4. Slide rod; 5. Clamping block; 6. Top block; 7. Central column; 8. Control plate; 9. Arc groove; 10. Operating cylinder; 11. Locking nut; 12. Pad block. Detailed Implementation

[0021] The following description, with reference to the accompanying drawings, illustrates several preferred embodiments of the present invention to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

[0022] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. The dimensions and thicknesses of each component shown in the drawings are arbitrary, and this invention does not limit the dimensions and thicknesses of each component. To make the illustrations clearer, the thickness of some components has been appropriately exaggerated in the drawings.

[0023] refer to Figures 1-2 The present invention relates to a test tube centrifuge, comprising a drum 1, wherein a plurality of test tube grooves 2 are evenly distributed around the drum 1, and a plurality of inverted F-shaped sliding grooves 3 are provided inside the drum 1 corresponding to the test tube grooves 2. An inverted F-shaped sliding rod 4 is slidably disposed in the sliding grooves 3. A clamping block 5 is fixed to the upper crossbar end of the sliding rod 4, and a wedge-shaped top block 6 is fixed to the lower crossbar end of the sliding rod 4. The sliding rod 4, clamping block 5, and top block 6 are integral structures that can slide radially within the sliding grooves 3. A central column 7 extends upward from the top center of the drum 1. An integrally formed control plate 8 and an operating cylinder 10 are sleeved on the central column 7. A plurality of arc-shaped grooves 9 are evenly distributed around the control plate 8, which correspond one-to-one with the top of the sliding rod 4. A locking nut 11 that is threadedly engaged with the central column 7 is provided above the operating cylinder 10.

[0024] The control disk 8 is adapted to switch the slide bar 4 between a first position and a second position by rotating it.

[0025] In the first position, the slide bar 4 is close to the center of the drum, the clamping block 5 is away from the test tube, and the top block 6 is located below the test tube groove 2 and lifts the test tube.

[0026] In the second position, the slide bar 4 is away from the center of the drum, the clamping block 5 holds the test tube, and the top block 6 is away from the test tube groove 2.

[0027] It is easy to understand that the centrifuge also includes conventional structures such as the outer shell and drive components (not shown in the figure), which can be configured using existing technologies, and will not be described in detail here.

[0028] The working principle of this utility model:

[0029] When placing the test tube, the slide bar 4 is in the initial position of the first position, and the clamping block 5 is in a position away from the test tube groove 2. The test tube is placed into the test tube groove 2, and at this time the test tube is supported above the top block 6. Rotating the operating cylinder 10 and the control plate 8 causes the slide bar 4 to move to the second position. During this process, the top block 6 moves away from the lower position of the test tube groove 2, and the test tube falls and is supported by the bottom of the test tube groove 2. Then, when the slide bar 2 slides to the second position, the clamping block 5 contacts the test tube and clamps it in the test tube groove 2. At this point, the placement of the test tube is completed and the centrifugation operation begins.

[0030] When removing the test tube, the operation is basically the opposite of placing the test tube. That is, the operating cylinder 10 and the control plate 8 are rotated to move the slide bar 4 to the first position. The clamping block 5 moves away from the test tube groove 2 and releases the clamp on the test tube. When it reaches the second position, the top block 2 moves to the bottom of the test tube groove 2. Its inclined surface contacts the bottom of the test tube and lifts the test tube upward to a certain height, making it easy for the operator to remove the test tube from the test tube groove 2.

[0031] Preferably, a rubber pad 12 is fixed inside the test tube groove 2 on the side opposite to the clamping block 5. The rubber pad 12 can cooperate with the clamping block 5 to clamp the test tube, making the test tube more stable.

[0032] Preferably, the end of the clamping block 5 is an arc-shaped clamping surface that matches the shape of the test tube.

[0033] Preferably, a rubber pad is provided on the arc-shaped clamping surface of the clamping block 5.

[0034] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A test tube centrifuge, characterized in that, The device includes a rotating drum (1), which has several test tube grooves (2) evenly distributed around its circumference. Several inverted F-shaped sliding grooves (3) are provided inside the rotating drum (1) corresponding to the test tube grooves (2). Inverted F-shaped sliding rods (4) are slidably arranged within the sliding grooves (3). A clamping block (5) is fixed to the upper crossbar end of the sliding rod (4), and a wedge-shaped top block (6) is fixed to the lower crossbar end of the sliding rod (4). The sliding rod (4), clamping block (5), and top block (6) serve as… The overall structure can slide radially along the drum (1) in the groove (3); a central column (7) extends upward from the top center of the drum (1), and an integrally formed control plate (8) and operating cylinder (10) are sleeved on the central column (7). The control plate (8) has several arc-shaped grooves (9) that correspond to the top of the slide rod (4) in a circumferential manner. A locking nut (11) that is threadedly engaged with the central column (7) is provided above the operating cylinder (10). The control disk (8) is adapted to switch the slide bar (4) between a first position and a second position by rotation: In the first position, the slide bar (4) is close to the center of the drum, the clamping block (5) is away from the test tube, and the top block (6) is located below the test tube groove (2) and lifts up the test tube; In the second position, the slide bar (4) is away from the center of the drum, the clamping block (5) holds the test tube, and the top block (6) is away from the test tube groove (2).

2. The test tube centrifuge as described in claim 1, characterized in that, A rubber pad (12) is fixed inside the test tube groove (2) on the side opposite to the clamp (5).

3. The test tube centrifuge as described in claim 1, characterized in that, The end of the clamping block (5) is an arc-shaped clamping surface that matches the shape of the test tube.

4. The test tube centrifuge as described in claim 3, characterized in that, A rubber pad is provided on the arc-shaped clamping surface of the clamping block (5).

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