Centrifugal machine rotor adapter

Abstract

The utility model relates to a centrifugal machine rotor adapter which comprises a base, an elastic chuck and an adjusting column. The elastic chuck is fixed to the upper end of the base, and the adjusting column can be arranged outside the elastic chuck in a sleeving mode and move in the axial direction of the elastic chuck. The elastic chuck comprises a plurality of clamping jaws which are distributed at intervals in the circumferential direction and can be close to or far away from one another, a clamping space used for clamping a reagent bottle is defined by the multiple clamping jaws, and an inner conical surface is formed on the inner circumferential wall of the adjusting column; and an outer conical surface which is matched with the inner conical surface so as to drive the elastic chuck to be opened or closed through the axial movement of the adjusting column is formed on the outer peripheral wall of the elastic chuck. After the reagent bottle is placed in the clamping space, the adjusting column and the base are gradually screwed and fixed through the threads, at the moment, along with the screwing process of the threads, the inner conical surface gradually extrudes the outer conical surface, so that the elastic chuck is pressed to contract inwards, and the clamping degree of the reagent bottle is adjusted. In this way, the function of adapting to various reagent bottles with different outer diameters can be achieved at the same time.

Description

Technical Field

[0001] This utility model relates to a centrifuge rotor adapter, belonging to the field of reagent centrifugation separation technology. Background Technology

[0002] In medical experiments, centrifuge rotors, after being fitted with reagent bottles, are primarily used for blood separation, cell separation, and culture. In scenarios requiring centrifugation, the rotor compartments of laboratory centrifuges are typically of fixed specifications, while original reagent bottles come in a wide variety of shapes and sizes, and most centrifuges are not compatible with them. If reagent bottles are placed directly into an unsuitable centrifuge rotor compartment, they may become difficult to remove, leading to ineffective centrifugation. Currently available centrifuge rotor adapters are mainly custom-designed sleeves based on standardized centrifuge tubes, and cannot accommodate various reagent bottle sizes. Summary of the Invention

[0003] The purpose of this invention is to solve the problem that the fixed specifications of the centrifuge rotor chamber in the prior art cannot meet the centrifugation operation of reagent bottles of various different specifications, and to provide a centrifuge rotor adapter.

[0004] The present invention adopts the following technical solution:

[0005] A centrifuge rotor adapter includes a base 3, an elastic clamp 1, and an adjusting column 2. The elastic clamp 1 is fixed to the upper end of the base 3, and the adjusting column 2 can be sleeved on the outside of the elastic clamp 1 and move along the axial direction of the elastic clamp 1. The elastic clamp 1 includes a plurality of grippers that are circumferentially spaced and can move closer or further apart from each other. The plurality of grippers enclose a gripping space 101 for gripping a reagent bottle. The inner peripheral wall of the adjusting column has an inner conical surface, and the outer peripheral wall of the elastic clamp 1 has an outer conical surface 102 that cooperates with the inner conical surface to drive the elastic clamp 1 to open or close by the axial movement of the adjusting column.

[0006] Preferably, the elastic clamp 1 includes a pressure section 103 with an outer conical surface, a support section 104 connected to the pressure section 103, a connecting section 105 connected to the base, and a contraction section 106 located between the connecting section 105 and the support section 104, wherein the thickness of the contraction section 106 is less than the thickness of the support section 104 and the connecting section 105.

[0007] Preferably, the base 3 includes a main body section 301 and an external thread section 302 that is threadedly connected to the adjusting column 2. The main body section 301 has a plurality of through slots 3011 that are spaced apart along its circumference, and each through slot 3011 extends along the axial direction of the main body section 301 and penetrates the end faces of both ends of the main body section along its axial direction.

[0008] Furthermore, the base 3 also includes an adapter 303 detachably fitted onto the end of the main body 301 away from the elastic clamp, the adapter 303 being hemispherical, spherical, or conical.

[0009] Preferably, the adjusting column 2 includes a pressure section 202 with an inner conical surface 201, an internal thread section 203 that is threadedly connected to the external thread section, and a transition section 204 for connecting the pressure section 202 and the internal thread section 203. A clearance gap is left between the inner peripheral wall of the transition section 204 and the outer peripheral wall of the elastic clamp 1.

[0010] Furthermore, a limiting step 304 for axially limiting the adjusting column is formed between the main body section 301 and the external thread section 302.

[0011] Preferably, the outer peripheral wall of the adjusting column 2 is provided with a plurality of anti-slip grooves 205 distributed at intervals along its circumference.

[0012] Preferably, the base 3 is a solid structure, and its upper end face forms a limiting platform for axially limiting the reagent bottle 4.

[0013] Preferably, the base 3 and the elastic clamp 1 are integrally formed, and the base 3, the elastic clamp 1 and the adjusting column 2 are all made of nylon.

[0014] Preferably, the centrifuge rotor adapter is directly matched with the rotor compartment 5 or with the sleeve-type adapter 7 to adapt to centrifuge rotors of different specifications.

[0015] In use, this invention allows for the adaptation of reagent bottles of varying outer diameters. With the elastic clamp fully relaxed, the inner diameter of its clamping space must be larger than that of all the reagent bottles to be fitted. After placing the reagent bottle into the clamping space, the adjusting column and base are gradually screwed together and secured. As the threads tighten, the inner conical surface gradually presses against the outer conical surface, forcing the elastic clamp to contract inwards, thus adjusting the clamping tightness of the reagent bottle. This allows for the simultaneous adaptation of reagent bottles with multiple outer diameters. It solves the problem in existing technologies where the fixed size of the centrifuge rotor compartment cannot accommodate centrifugation operations with various reagent bottle sizes. Attached Figure Description

[0016] Figure 1 This is an exploded view of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a structural schematic diagram of the pointed-bottom base and the round-bottom adapter in this utility model;

[0019] Figure 4This is an assembly diagram of the pointed bottom base and the round bottom adapter in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of this utility model that is directly installed into the rotor compartment;

[0021] Figure 6 This is a schematic diagram of the interaction between this utility model and the sleeve-type adapter;

[0022] Figure 7 This is a schematic diagram of the structure of this utility model after being fitted into the rotor compartment with a sleeve-type adapter;

[0023] In the picture:

[0024] 1. Elastic chuck; 101. Clamping space; 102. Outer conical surface; 103. Compression section; 104. Support section; 105. Connecting section; 106. Retraction section;

[0025] 2. Adjusting column; 201. Inner conical surface; 202. Pressure application section; 203. Internal thread section; 204. Transition section; 205. Anti-slip groove;

[0026] 3. Base; 301. Main body section; 3011. Through groove; 302. External thread section; 303. Adapter; 304. Limiting step; 305. Limiting platform;

[0027] 4. Reagent bottles;

[0028] 5. Rotor compartment;

[0029] 6. Centrifuge;

[0030] 7. Sleeve-type adapter. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] These accompanying drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention. Therefore, they only show the components relevant to the present invention. Orientations and references (e.g., up, down, left, right, etc.) are used solely to aid in the description of the features in the drawings. Thus, the following specific embodiments are not intended to be limiting.

[0033] A centrifuge rotor adapter that can be directly inserted into a centrifuge rotor chamber 5 of a certain size for use (e.g., Figure 5 (as shown), or assembled with the sleeve-type adapter 7 to form a combination before being placed into the rotor compartment 5 to adapt to centrifuge rotors of different specifications (such as...). Figure 6 and 7 To expand its scope of use.

[0034] See Figure 1 and Figure 2 The adapter includes an elastic clamp 1 and an adjusting column 2 sleeved outside the elastic clamp 1 and movable along the axial direction of the elastic clamp 1. The elastic clamp 1 includes several jaws that are spaced apart circumferentially and can move closer or further apart from each other. There is a gap between two adjacent jaws for deformation. The jaws enclose a clamping space 101 for clamping the reagent bottle 4. When the jaws move further apart from each other, the clamping space 101 becomes larger and can clamp a reagent bottle 4 with a larger opening. When the jaws move closer together, the clamping space 101 becomes smaller and can clamp a reagent bottle 4 with a smaller opening. The number of jaws can be, but is not limited to, two, three, or four. The adapter also includes a base 3 for mounting the elastic clamp 1, and the base 3 is threadedly connected to the adjusting column 2. By rotating the adjusting column 2, it can be made to reciprocate along the axial direction of the elastic clamp 1 to squeeze or release the elastic clamp 1 and maintain this state. Within the axial movement stroke of the elastic clamp 1, reagent bottles 4 of various sizes can be clamped, and the screw locking is simple to adjust.

[0035] In use, this invention allows for the adaptation of reagent bottles of varying outer diameters. With the elastic clamp fully relaxed, the inner diameter of its clamping space must be larger than that of all the reagent bottles to be fitted. After placing the reagent bottle into the clamping space, the adjusting column and base are gradually screwed together and secured. As the threads tighten, the inner conical surface gradually presses against the outer conical surface, forcing the elastic clamp to contract inwards, thus adjusting the clamping tightness of the reagent bottle. This allows for the simultaneous adaptation of reagent bottles with multiple outer diameters. It solves the problem in existing technologies where the fixed size of the centrifuge rotor compartment cannot accommodate centrifugation operations with various reagent bottle sizes.

[0036] See Figure 2 The inner peripheral wall of the adjusting column 2 has an inner conical surface 201, and the outer peripheral wall of the elastic clamp 1 has an outer conical surface 102 that cooperates with the inner conical surface 201 to drive the elastic clamp 1 to open or close through the axial movement of the adjusting column 2. In this embodiment, both the inner conical surface 201 and the outer conical surface 102 have a structure that is smaller at the top and larger at the bottom. When the adjusting column 2 moves downward, the inner conical surface 201 gradually pushes the outer conical surface 102, causing the elastic clamp 1 to close and clamp the reagent bottle 4. When the adjusting column 2 moves upward, the inner conical surface 201 gradually releases the pressure on the outer conical surface 102, and the elastic clamp 1 gradually opens to release the reagent bottle 4 and remove the reagent bottle 4.

[0037] When in use, adjust the adjusting column 2 according to the outer diameter of the reagent bottle 4. The inner conical surface 201 applies pressure to the outer conical surface 102. The component force applied to the outer conical surface 102 will deform the elastic clamp 1 and tighten it towards the center, appropriately restricting the reagent bottle 4 in the center, thereby fixing the reagent bottle 4 on the adapter. Finally, put the entire adapter into the centrifuge rotor chamber 5 to centrifuge the reagent.

[0038] This design controls the deformation of the elastic clamp 1 by adjusting the stroke of the regulating column 2, thus allowing it to clamp reagent bottles 4 of different sizes. After clamping and fixing, the bottles can be directly placed into the rotor chamber 5 for centrifugation (e.g., Figure 5 (As shown), it can also be assembled with a common sleeve-type adapter 7 to form a combined unit before being placed into the rotor chamber 5 for centrifugal operation (as shown). Figure 6 and Figure 7 (As shown).

[0039] The base 3 can be designed to have the same external dimensions as commonly used standard centrifuge tubes, so that it can be directly placed into a centrifuge rotor compartment 5 of a certain size. Alternatively, it can be adapted to centrifuge rotors of different sizes by adding a traditional sleeve-type adapter 7, eliminating the complicated process of disassembling and replacing centrifuge rotors, making the operation convenient and quick.

[0040] In some examples, the elastic clamp 1 includes a pressure section 103 with an outer conical surface 102, a support section 104 connected to the pressure section 103, a connecting section 105 connected to the base 3, and a contraction section 106 located between the connecting section 105 and the support section 104. The thickness of the contraction section 106 is less than the thickness of the support section 104 and the connecting section 105, that is, the outer diameter of the contraction section 106 is less than the outer diameter of the support section 104 and the connecting section 105, and it is radially contracted. The thin contraction section 106 is conducive to the elastic deformation of the elastic clamp 1, and the thick support section 104 gives the elastic clamp 1 sufficient strength to hold the reagent bottle 4.

[0041] In some examples, the base 3 includes a main body section 301 and an external threaded section 302 that is threadedly connected to the adjusting column 2. The main body section 301 has several through slots 3011 that are spaced apart along its circumference. Each through slot 3011 extends along the axial direction of the main body section 301 and passes through the end faces of both ends of the main body section 301 along its axial direction. The cross-sectional shape of the through slot 3011 can be, but is not limited to, arc shape, square shape, etc. When the adapter is installed into the rotor chamber 5 of the centrifuge 6, the through slot 3011 can play a role in balancing the internal and external air pressure, preventing the adapter from being sucked in when pulled out or pushed up when put in when the adapter is too tightly fitted to the rotor chamber 5. Furthermore, the outer peripheral wall of the main body section 301 is formed with concave and convex surfaces, which can increase the friction and make it less likely to loosen when picked up.

[0042] In some examples, such as Figure 3 and Figure 4As shown, the adapter also includes a detachable fitting 303 that is sleeved on the end of the main body 301 away from the elastic clamp 1 to match the bottom of the rotor chamber 5. The fitting 303 is hemispherical, spherical, or conical. The bottom of the rotor chamber 5 is generally round (i.e., hemispherical or spherical) or pointed (i.e., conical). If the initial design of the bottom of the adapter base 3 is pointed (i.e., conical), it can be directly used with the pointed-bottom centrifuge rotor chamber 5. If it needs to be used with the round-bottom centrifuge rotor chamber 5, a hemispherical or spherical fitting 303 can be installed to prevent the adapter from deforming too much due to the mismatch between the shape of the adapter and the bottom of the centrifuge rotor 6 during high-speed centrifugation. Of course, the adapter base 3 can also be changed from round bottom to pointed bottom.

[0043] In some examples, such as Figure 2 As shown, the adjusting column 2 includes a pressure section 202 with an inner conical surface 201, an internal thread section 203 that is threadedly connected to the external thread section 302, and a transition section 204 for connecting the pressure section 202 and the internal thread section 203. A clearance is left between the inner peripheral wall of the transition section 204 and the outer peripheral wall of the elastic chuck 1 to avoid interference with the elastic chuck 1 during the axial movement of the adjusting column 2.

[0044] In some examples, such as Figure 1 and Figure 3 As shown, the adjusting column 2 is a clamping nut, and its outer peripheral wall is provided with several anti-slip grooves 205 distributed at intervals along its circumference to facilitate applying force to make it rotate.

[0045] In some examples, such as Figures 1-3 As shown, a limiting step 304 is formed between the main body section 301 and the external thread section 302 to axially limit the adjusting column 2. That is, the outer diameter of the external thread section 302 is smaller than the outer diameter of the main body section 301. When the adjusting column 2 moves to abut against the limiting step 304, the adjusting column 2 is at the lower limit position.

[0046] In some examples, such as Figure 2 As shown, the base 3 is a solid structure, and a limiting platform 305 is formed between it and the elastic clamp 1 to axially limit the reagent bottle 4, so as to prevent the reagent bottle 4 from being loaded at different depths, which would affect the dynamic balance of the centrifuge 6 and cause the centrifuge 6 to vibrate. The depth of the clamping space 101 formed by the upper elastic clamp 1 can be adjusted according to the height of the reagent bottle 4.

[0047] In some examples, the base 3 and the elastic clamp 1 are integrally formed, and the base 3, the elastic clamp 1 and the adjusting column 2 are all made of high-strength and lightweight materials, preferably nylon, which is inexpensive.

[0048] The above are some preferred embodiments of this utility model. Those skilled in the art can make their own modifications or improvements based on these embodiments. Without departing from the overall concept of this utility model, these modifications or improvements should all fall within the scope of protection claimed by this utility model.

Claims

1. A centrifuge rotor adapter, characterized in that: Includes base (3), elastic clamp (1), and adjusting column (2); The elastic clamp (1) is fixed on the upper end of the base (3), and the adjusting column (2) can be sleeved on the outside of the elastic clamp (1) and move along the axial direction of the elastic clamp (1); The elastic clamp (1) includes several claws that are spaced apart circumferentially and can move closer or further apart from each other. The claws enclose a clamping space (101) for clamping the reagent bottle. The inner peripheral wall of the adjusting column has an inner conical surface, and the outer peripheral wall of the elastic clamp (1) has an outer conical surface (102) that cooperates with the inner conical surface to drive the elastic clamp (1) to open or close through the axial movement of the adjusting column.

2. The centrifuge rotor adapter of claim 1, wherein: The elastic clamp (1) includes a pressure section (103) with an outer conical surface, a support section (104) connected to the pressure section (103), a connecting section (105) connected to the base, and a contraction section (106) located between the connecting section (105) and the support section (104). The thickness of the contraction section (106) is less than the thickness of the support section (104) and the connecting section (105).

3. The centrifuge rotor adapter of claim 1, wherein: The base (3) includes a main body section (301) and an external thread section (302) that is threadedly connected to the adjusting column (2). The main body section (301) has a plurality of through slots (3011) that are spaced apart along its circumference. Each through slot (3011) extends along the axial direction of the main body section (301) and passes through the end faces of both ends of the main body section along its axial direction.

4. The centrifuge rotor adapter of claim 3, wherein: The base (3) also includes an adapter (303) detachably fitted onto the end of the main body (301) away from the elastic clamp, the adapter (303) being hemispherical, spherical, or conical.

5. The centrifuge rotor adapter of claim 1, wherein: The adjusting column (2) includes a pressure section (202) with an inner conical surface (201), an internal thread section (203) that is threadedly connected to the external thread section, and a transition section (204) for connecting the pressure section (202) and the internal thread section (203). A clearance gap is left between the inner peripheral wall of the transition section (204) and the outer peripheral wall of the elastic chuck (1).

6. The centrifuge rotor adapter of claim 3, wherein: A limiting step (304) for axially limiting the adjusting column is formed between the main body section (301) and the external thread section (302).

7. The centrifuge rotor adapter of claim 1, wherein: The outer peripheral wall of the adjusting column (2) is provided with several anti-slip grooves (205) distributed at intervals along its circumference.

8. The centrifuge rotor adapter of claim 1, wherein: The base (3) is a solid structure, and its upper end face forms a limiting platform for axially limiting the reagent bottle (4).

9. The centrifuge rotor adapter of claim 1, wherein: The base (3) and the elastic clamp (1) are integrally formed, and the base (3), the elastic clamp (1) and the adjusting column (2) are all made of nylon.

10. The centrifuge rotor adapter of claim 1, wherein: The centrifuge rotor adapter is directly matched with the rotor compartment (5) or with the sleeve adapter (7) to adapt to centrifuge rotors of different specifications.

Images