Centrifugal cup and centrifugal machine rotating head

Abstract

The centrifugal cup comprises a cup body and stopping petals, a plurality of centrifugal holes are formed in the cup body, the upper ends of the centrifugal holes are open, the centrifugal holes correspond to test tubes, and at least two stopping petals are correspondingly arranged on the upper edges of the centrifugal holes and are symmetrically distributed relative to the centrifugal holes; the stopping petals are made of elastic materials, and the stopping petals are folded inwards to stop the upper edge of the test tube for limiting. And the blocking petals are arranged, the blocking petals extend into the centrifugal holes to block the test tubes, the test tubes are prevented from vibrating in the circumferential direction, and therefore the stability of the test tubes is guaranteed. The blocking petals can be folded inwards and outwards, so that the test tube is convenient to take and place, when the test tube is placed, the blocking petals are folded outwards, so that the test tube is not influenced, a taking and placing gap is reserved between the two blocking petals, the test tube can be clamped by fingers or other holding tools, and the test tube can be taken out by overcoming the blocking petals, so that the test tube is convenient to take out.

Description

Technical Field

[0001] This utility model belongs to the technical field of centrifuges, specifically relating to a centrifuge cup and a centrifuge rotor. Background Technology

[0002] Centrifuges are devices used to separate components in a mixture of liquids and solid particles or liquids by centrifugation, and are common instruments in laboratories. Most existing centrifuges use centrifuge cups to hold test tubes, and the diameter of the centrifuge orifice is usually designed to be slightly larger than the diameter of the test tubes. This results in poor stability of the test tubes, making them prone to vibration during centrifugation. This vibration can, to some extent, affect the centrifugation effect of the reagents inside the test tubes.

[0003] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art. This utility model provides a centrifuge cup and a centrifuge rotor.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A centrifuge cup includes a cup body and stop valves. The cup body is provided with a plurality of centrifuge holes with open upper ends corresponding to test tubes. At least two of the stop valves are correspondingly arranged on the upper edge of the centrifuge holes and are symmetrically distributed about the centrifuge holes.

[0007] The stop flap is made of elastic material and is limited by folding inward to stop the upper edge of the test tube.

[0008] Preferably, the upper surface of the cup body is provided with an annular protrusion corresponding to the centrifugal hole, and the stop flap is correspondingly disposed on the upper surface of the annular protrusion.

[0009] Preferably, the stop flap is made of rubber, and the stop flap is fixed to the annular protrusion by adhesive bonding or hot melting.

[0010] Preferably, the cross-section of the stop flap is an arc extending toward the centrifugal hole, and the angle of the corresponding arc is 45°-65°.

[0011] The arc angle corresponding to the stop flap is 90°-120°, so as to form a gap for taking out and putting in the corresponding test tube between the two stop flaps.

[0012] Preferably, the centrifuge hole has an enlarged section with an increased inner diameter along its inner edge, and a first support ring is fixed to the upper end of the enlarged section;

[0013] The enlarged section is also slidably fitted with a second support ring, and the inner holes of the first support ring and the second support ring are interference-fitted with the test tube.

[0014] Preferably, the lower end of the enlarged section extends to the lower middle part of the centrifuge hole of the test tube.

[0015] Preferably, the multiple centrifugal holes are evenly distributed around the circumference of the cup body.

[0016] A centrifuge rotor includes multiple centrifuge cups. The centrifuge disc has multiple assembly stations corresponding to the centrifuge cups around its circumference. Each assembly station has parallel assembly surfaces on opposite sides. The centrifuge cups have hinge holes on opposite sides. The assembly surfaces are hinged to the hinge holes via hinge shafts.

[0017] Preferably, there are four assembly stations.

[0018] Preferably, the centrifuge cup has reinforcing blocks on both sides corresponding to the hinge shaft, and the reinforcing blocks are integrally formed with the centrifuge cup.

[0019] Beneficial effects: The stop valve extends into the centrifuge orifice to stop the test tube from vibrating in the circumferential direction, thus ensuring the stability of the test tube.

[0020] The stop flaps can be folded inwards and outwards to facilitate the placement and removal of test tubes. When inserting a test tube, the stop flaps are folded outwards to avoid affecting the insertion of the test tube. A gap is left between the two stop flaps, allowing the test tube to be held by fingers or other gripping tools, thus overcoming the stop flaps and making it easy to remove. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0022] Figure 1 This is a simplified structural diagram of the centrifuge cup in a specific embodiment of this utility model;

[0023] Figure 2 This is a simplified structural diagram of the rotating head in a specific embodiment of this utility model.

[0024] In the diagram: 1. Cup body; 2. Test tube; 3. Expanding section; 4. Stop valve; 5. First support ring; 6. Second support ring; 7. Centrifuge tray; 8. Centrifuge hole; 9. Assembly station. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art are within the protection scope of this utility model.

[0026] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected" and "linked" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0028] In existing technology, a centrifuge cup (also known as a centrifuge basket, centrifuge tray 7, or centrifuge rotor) is directly connected to the centrifuge motor. Rotation causes the internal test tube 2 to spin at high speed, thus achieving centrifugation. The centrifuge hole 8 of existing centrifuge cups is generally larger than the diameter of the test tube 2. This can easily cause vibration during startup or shutdown, leading to instability of the centrifuged liquid. Vibration may also cause uneven liquid distribution within the test tube 2, affecting the separation effect during centrifugation and potentially damaging the centrifuge structure, even causing damage to the test tube 2. Reducing the diameter of the centrifuge hole 8 would make inserting the test tube 2 more difficult, affecting the efficiency of insertion and removal. To address this, if… Figure 1-2 As shown, this application designs a centrifuge cup, including a cup body 1 and stop flaps 4. The cup body 1 has a conventional shape and is provided with multiple centrifuge holes 8 with open tops corresponding to test tubes 2. The diameter of the centrifuge holes 8 is larger than the diameter of the test tubes 2, so as not to affect the normal handling efficiency of the test tubes 2 as much as possible. At least two stop flaps 4 are correspondingly arranged on the upper edge of the centrifuge holes 8 and are symmetrically distributed about the centrifuge holes 8. The stop flaps 4 are made of elastic material. By folding the stop flaps 4 inward, they stop the upper edge of the test tubes 2 for limiting. In this way, the stopping force of the stop flaps 4 improves the stability of the test tubes 2, thereby reducing the possibility of vibration of the test tubes 2 during centrifugation.

[0029] Furthermore, to improve the ease of installation and operation of the stop valve 4, an annular protrusion corresponding to the centrifuge hole 8 is provided on the upper surface of the cup body 1. The annular protrusion does not extend above the upper surface of the test tube 2. The stop valve 4 is correspondingly set on the upper surface of the annular protrusion. By moving the stop valve 4, the stop valve 4 can stop or release the upper surface of the test tube 2. The stop valve 4 is made of rubber, which is easy to operate. The stop valve 4 is fixed to the annular protrusion by adhesive bonding or heat fusion.

[0030] Furthermore, for ease of operation, two stop flaps 4 are preferred, with the arc angle corresponding to the stop flaps 4 being 90°-120°, so as to form a gap for taking out and putting in the test tube 2 between the two stop flaps 4. The stop flaps 4 can be folded inward and outward, thereby facilitating the taking out and putting in the test tube 2. When inserting the test tube 2, the stop flaps 4 are folded outward, so as not to affect the insertion of the test tube 2. The gap between the two stop flaps 4 allows the test tube 2 to be held by fingers or other holding tools, so that the test tube 2 can be taken out over the stop flaps 4, making it easy to take out.

[0031] The cross-section of the stop flap 4 is an arc extending toward the centrifuge hole 8, and the angle of the corresponding arc is 45°-65°, which can have an inward restraining force to restrict the test tube 2, and it is easy to fold the stop flap 4 outward without affecting the removal of the test tube 2.

[0032] In an optional embodiment, to further improve the stability of the test tube 2, an enlarged section 3 with an increased inner diameter is provided along the upper edge of the inner cavity of the centrifuge hole 8. A first support ring 5 is fixed at the upper end of the enlarged section 3, and a second support ring 6 is slidably assembled on the enlarged section 3. The first support ring 5 and the second support ring 6 can be rubber rings. The second support ring 6 can slide longitudinally in the enlarged section 3. The inner holes of the first support ring 5 and the second support ring 6 are interference-fitted with the test tube 2. When the test tube 2 is inserted, the lower end of the test tube 2 drives the second support ring 6 to slide downward. When it slides to the lower end of the enlarged section 3, the enlarged section 3 stops the second support ring 6, causing the test tube 2 to slide relative to the second support ring 6. In this way, the stability of the test tube 2 is ensured by the support of the two support rings. When the test tube 2 is removed, the first support ring 5 stops it, allowing the test tube 2 to detach. In this way, the test tube 2 is not subjected to excessive friction while ensuring its stability, making it easy to pick up and put down.

[0033] Furthermore, the lower end of the enlarged section 3 extends to the lower middle part of the centrifuge hole 8 of the test tube 2, thereby forming a stable support with the support ring and the stop flap 4.

[0034] Multiple centrifuge holes 8 are evenly distributed around the circumference of the cup body 1, preferably 2, 4, 6, or 8.

[0035] Regarding the aforementioned centrifuge cups, this application also provides a centrifuge rotor, including multiple centrifuge cups. The centrifuge disc 7 has multiple corresponding centrifuge cup assembly stations 9 circumferentially. The area of ​​each assembly station 9 is adapted to the centrifuge cup. The opposite sides of each assembly station 9 are parallel assembly surfaces. The opposite sides of the centrifuge cups have hinge holes, and the assembly surfaces are hinged to these hinge holes via hinge shafts. This allows the centrifuge cups and the centrifuge disc 7 to be rotatably connected. The hinge shaft is located on the upper edge of the centrifuge cups. The assembly station 9 is larger than the centrifuge cups, allowing the centrifuge cups to rotate within the assembly station 9. The centrifuge cups rotate via the hinge shafts under centrifugal force, and the shape of the centrifuge cups is adapted to the shape of the placement chamber.

[0036] Preferably, there are four assembly stations 9. Reinforcing blocks corresponding to the hinge shafts are provided on both sides of the centrifuge cup. The centrifuge cup can be made of high-strength plastic, and the reinforcing blocks are integrally molded with the centrifuge cup, thereby improving the strength of the centrifuge cup.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be within the scope of protection of the pending claims of the present utility model.

Claims

1. A centrifugal cup characterized in that, The centrifugal cup comprises a cup body and stop flaps, the cup body is provided with a plurality of centrifugal holes corresponding to test tubes, and at least two stop flaps are arranged on the upper edges of the centrifugal holes and are symmetrically distributed with respect to the centrifugal holes. The stop flaps are made of elastic material, and the stop flaps are folded inward to limit the upper edges of the test tubes.

2. The centrifugal cup of claim 1, wherein, The upper end surface of the cup body is provided with annular protrusions corresponding to the centrifugal holes, and the stop flaps are arranged on the upper end surfaces of the annular protrusions.

3. The centrifugal cup of claim 2, wherein, The stop flaps are made of rubber material, and the stop flaps are fixed to the annular protrusions by means of gluing or hot melting.

4. The centrifugal cup of claim 3, wherein, The cross section of the stop flap is an arc extending to the centrifugal hole, and the corresponding arc angle is 45°-65°. The corresponding arc angle of the stop flap is 90°-120°, so as to form a taking and placing gap corresponding to the test tube between the two stop flaps.

5. The centrifugal cup of claim 1, wherein, The upper end of the hole expansion section is fixed with a first supporting ring. The hole expansion section is also slidably provided with a second supporting ring, and the inner holes of the first supporting ring and the second supporting ring are in interference fit with the test tube.

6. The centrifugal cup of claim 5, wherein, The lower end of the hole expansion section extends to the middle and lower part of the centrifugal hole of the test tube.

7. The centrifugal cup of claim 1, wherein, A plurality of centrifugal holes are uniformly distributed about the circumference of the cup body.

8. A centrifuge rotor comprising a plurality of centrifuge cups according to any one of claims 1-7, characterized in that, The centrifugal disc has a plurality of assembly stations corresponding to the centrifugal cup, and the opposite sides of each assembly station are parallel assembly surfaces.

9. The centrifuge head of claim 8, wherein, The assembly station is four.

10. The centrifuge head of claim 8, wherein, The two sides of the centrifugal cup are provided with reinforcing blocks corresponding to the hinge shafts, and the reinforcing blocks are integrally formed with the centrifugal cup.

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