Storage support

Abstract

The utility model discloses a storable bracket which comprises a base, a centrifugal tube bracket and a filter column bracket, and the base is provided with a plurality of centrifugal tube placing grooves. The centrifugal tube bracket is provided with a plurality of centrifugal tube mounting holes, and the plurality of centrifugal tube mounting holes penetrate through the centrifugal tube bracket along the vertical direction. The filter column bracket is provided with a plurality of filter column mounting holes, and the plurality of filter column mounting holes penetrate through the filter column bracket along the vertical direction. The storable support is arranged to be capable of being switched between a storage state and a use state. In the storage state, the filter column bracket and the centrifugal tube bracket are detachably connected with the base. In the using state, the filtering column bracket, the centrifugal tube bracket and the base are detachably connected, and the multiple filtering column mounting holes, the multiple centrifugal tube mounting holes and the multiple centrifugal tube containing grooves are aligned one by one in the vertical direction from top to bottom.

Description

Technical Field

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

[0002] A test tube rack is a common laboratory instrument used to hold centrifuge tubes upright. Different sizes of centrifuge tubes require corresponding test tube racks for stable placement.

[0003] A filter column is a pre-filled tubular column through which liquid samples flow. By selecting a solvent of appropriate polarity, target analytes in the sample can be eluted and removed. It is commonly used in sample pretreatment steps such as impurity removal and desalting. When using a filter column, centrifuge tubes of different sizes need to be placed below it to collect waste liquid or eluent. The opening at the bottom of the filter column needs to be suspended above the centrifuge tubes. Therefore, a special filter column holder is required to work with multiple stacked centrifuge tube racks.

[0004] To accommodate various centrifuge tubes and multiple filter columns, different test tube racks are required, which are inconvenient to store and cumbersome to operate, making it difficult to conduct experiments. Utility Model Content

[0005] The purpose of this invention is to provide a retractable support to solve the problems of the prior art.

[0006] To solve the above-mentioned technical problems, the present invention provides a retractable support, comprising:

[0007] The base is provided with multiple centrifuge tube placement slots;

[0008] A centrifuge tube holder, wherein the centrifuge tube holder is provided with a plurality of centrifuge tube mounting holes, and the plurality of centrifuge tube mounting holes penetrate the centrifuge tube holder in a vertical direction;

[0009] A filter column bracket is provided with a plurality of filter column mounting holes, which penetrate the filter column bracket vertically.

[0010] The retractable bracket is configured to switch between a retractable state and a usable state.

[0011] In the stored state, the filter column bracket, the centrifuge tube bracket, and the base are detachably connected;

[0012] In the usage state, the filter column bracket, the centrifuge tube bracket, and the base are detachably connected, and the plurality of filter column mounting holes, the plurality of centrifuge tube mounting holes, and the plurality of centrifuge tube placement slots are aligned vertically from top to bottom.

[0013] In one embodiment, the base includes:

[0014] The base body is provided with multiple slots for placing the centrifuge tubes;

[0015] Two support members are respectively connected to both ends of the base and extend vertically beyond the top surface of the base;

[0016] In the stored state, the filter column bracket, the centrifuge tube bracket, and the base are detachably connected;

[0017] In the usage state, the filter column bracket is detachably connected to the centrifuge tube bracket, and the centrifuge tube bracket and the two support members are detachably connected and spaced apart from the base.

[0018] In one embodiment, in the stored state, the centrifuge tube holder, the filter column holder, and the base are detachably connected from top to bottom.

[0019] In one embodiment, the top surface of the seat is provided with two sliding grooves, which open toward the same side of the seat;

[0020] The support includes support columns connected to both ends of the base and locking feet connected to the inner surfaces of the support columns;

[0021] The centrifuge tube holder has two first slots on its bottom surface and two second slots on its top surface;

[0022] The bottom surface of the filter column bracket is provided with two sliders, and the top surface is provided with two locking blocks;

[0023] In the stored state, the filter column bracket is located on the top surface of the base, and the two sliders are respectively located in the two grooves; the centrifuge tube bracket is located on the top surface of the filter column bracket, and the two locking blocks are respectively located in the two first locking slots;

[0024] In the usage state, the two first slots are respectively engaged with the locking feet of the two support members, and the two sliders are respectively located in the two second slots.

[0025] In one embodiment, the retractable bracket further includes a first adjustment piece, which has a plurality of first adjustment holes and two first insertion holes;

[0026] The diameter of the first adjustment hole is different from the diameter of the filter column mounting hole;

[0027] In the retracted state, the first adjustment piece is located between the filter column bracket and the base, and the two sliders respectively pass through the two first insertion holes and extend into the two sliding grooves;

[0028] In the usage state, the first adjustment piece is located on the top surface of the filter column bracket, and the two locking blocks are respectively located in the two first insertion holes.

[0029] In one embodiment, the retractable bracket further includes a first adjustment piece, which has a plurality of first adjustment holes and two first insertion holes;

[0030] The diameter of the first adjustment hole is different from the diameter of the centrifuge tube mounting hole;

[0031] In the retracted state, the first adjustment piece is located between the filter column bracket and the base, and the two sliders respectively pass through the two first insertion holes and extend into the two sliding grooves;

[0032] In the usage state, the first adjustment plate is located on the top surface of the centrifuge tube holder, and the two sliders pass through the two first insertion holes and extend into the two second slots respectively.

[0033] In one embodiment, the retractable bracket further includes a first adjustment plate, which has a plurality of first adjustment holes and two first insertion holes. The diameters of the first adjustment holes, the filter column mounting holes, and the centrifuge tube mounting holes are all different.

[0034] In the retracted state, the first adjustment piece is located between the filter column bracket and the base, and the two sliders respectively pass through the two first insertion holes and extend into the two sliding grooves;

[0035] In the stated usage state, the first adjusting plate is located on the top surface of the filter column bracket, and the two locking blocks are respectively located within the two first insertion holes; or,

[0036] In the usage state, the first adjustment plate is located on the top surface of the centrifuge tube holder, and the two sliders pass through the two first insertion holes and extend into the two second slots respectively.

[0037] In one embodiment, the retractable bracket further includes:

[0038] The first adjusting plate is provided with multiple first adjusting holes and two first insertion holes.

[0039] The second adjusting plate is provided with multiple second adjusting holes and two second insertion holes;

[0040] The diameter of the first adjustment hole is different from the diameter of the filter column mounting hole;

[0041] The diameter of the second adjustment hole is different from the diameter of the centrifuge tube mounting hole;

[0042] In the retracted state, the first adjustment piece and the second adjustment piece are respectively located between the filter column bracket and the base, and the two sliders respectively pass through the two first insertion holes and the two second insertion holes and extend into the two sliding grooves;

[0043] In the usage state, the first adjusting plate is located on the top surface of the filter column bracket, and the two locking blocks are respectively located in the two first insertion holes; the second adjusting plate is located on the top surface of the centrifuge tube bracket, and the two sliders respectively pass through the two second insertion holes and extend into the two second locking slots.

[0044] In one embodiment, the retractable bracket further includes:

[0045] The first adjusting plate is provided with multiple first adjusting holes and two first insertion holes.

[0046] The second adjusting plate is provided with multiple second adjusting holes and two second insertion holes;

[0047] The diameter of the first adjustment hole is different from the diameter of the filter column mounting hole and the centrifuge tube mounting hole;

[0048] The diameter of the second adjustment hole is different from the diameter of the filter column mounting hole and the centrifuge tube mounting hole;

[0049] In the retracted state, the first adjustment piece and the second adjustment piece are respectively located between the filter column bracket and the base, and the two sliders respectively pass through the two first insertion holes and the two second insertion holes and extend into the two sliding grooves;

[0050] In the usage state, the first adjusting plate is located on the top surface of the filter column bracket, and the two locking blocks are respectively located in the two first insertion holes; the second adjusting plate is located on the top surface of the centrifuge tube bracket, and the two sliders respectively pass through the two second insertion holes and extend into the two second locking slots; or

[0051] In the usage state, the second adjusting plate is located on the top surface of the filter column bracket, and the two locking blocks are respectively located in the two second insertion holes; the first adjusting plate is located on the top surface of the centrifuge tube bracket, and the two sliders respectively pass through the two first insertion holes and extend into the two second locking slots.

[0052] In one embodiment, the retractable bracket further includes two first adjustment tabs and two second adjustment tabs;

[0053] In the stored state, the two first adjustment plates and the two first adjustment plates are respectively located between the filter column bracket and the base;

[0054] In the usage state, the first adjusting plate is located on the top surface of the filter column bracket, and the two locking blocks are respectively located in the two first insertion holes; the second adjusting plate is located on the top surface of the centrifuge tube bracket, and the two sliders respectively pass through the two second insertion holes and extend into the two second locking slots; or

[0055] In the usage state, the second adjusting plate is located on the top surface of the filter column bracket, and the two locking blocks are respectively located in the two second insertion holes; the first adjusting plate is located on the top surface of the centrifuge tube bracket, and the two sliders respectively pass through the two first insertion holes and extend into the two second locking slots; or

[0056] In the usage state, one of the first adjusting plates is located on the top surface of the filter column holder, and the two locking blocks are respectively located in the two first insertion holes; the other first adjusting plate is located on the top surface of the centrifuge tube holder, and the two sliders respectively pass through the two first insertion holes and extend into the two second locking slots; or

[0057] In the usage state, one of the second adjustment plates is located on the top surface of the filter column bracket, and the two locking blocks are respectively located in the two second insertion holes; the other second adjustment plate is located on the top surface of the centrifuge tube bracket, and the two sliders respectively pass through the two second insertion holes and extend into the two second slots.

[0058] In one embodiment, the top surface of the filter column bracket is provided with a first limiting block;

[0059] The centrifuge tube holder has a second limiting block on its top surface and a first limiting groove on its bottom surface.

[0060] The first adjusting piece is provided with a first limiting hole;

[0061] The second adjusting piece is provided with a second limiting hole;

[0062] In the stored state, the first limiting block is located within the first limiting groove;

[0063] In the usage state, the first adjusting plate is located on the top surface of the filter column bracket, the two locking blocks are respectively located in the two first insertion holes, and the first limiting block is located in the first limiting hole; the second adjusting plate is located on the top surface of the centrifuge tube bracket, the two sliders respectively pass through the two second insertion holes and extend into the two second locking slots; the second limiting block is located in the second limiting hole; or

[0064] In the usage state, the second adjusting plate is located on the top surface of the filter column bracket, the two locking blocks are respectively located in the two second insertion holes, and the first limiting block is located in the second limiting hole; the first adjusting plate is located on the top surface of the centrifuge tube bracket, the two sliders respectively pass through the two first insertion holes and extend into the two second locking slots, and the second limiting block is located in the first limiting hole.

[0065] In one embodiment, the base includes:

[0066] A base body, the base body having two sliding grooves and a plurality of centrifuge tube placement grooves, the two sliding grooves opening towards the same side of the base body; and

[0067] Two support members, each of the two support members including a support column connected to both ends of the base body and a locking foot connected to the inner side of the support column;

[0068] The bottom surface of the centrifuge tube holder is provided with a first limiting groove and two first slots, and the top surface is provided with a second limiting block and two second slots;

[0069] The bottom surface of the filter column bracket is provided with two sliders, and the top surface is provided with a first limiting block and two locking blocks;

[0070] The retractable bracket also includes a top cover, the bottom surface of which is provided with two third slots and a second limiting slot;

[0071] In the retracted state, the filter column bracket is located on the top surface of the base, and the two sliders are respectively located in the two grooves; the centrifuge tube bracket is located on the top surface of the filter column bracket and on the bottom surface of the two feet, the two blocks are respectively located in the two first slots, and the first limiting block is located in the first limiting groove; the top cover covers the support member, and the two feet are located in the two third slots, and the second limiting block is located in the second limiting groove;

[0072] In the usage state, the centrifuge tube holder is located above the base, and the two first slots are respectively engaged with the locking feet of the two support members; the filter column holder is located above the centrifuge tube holder, and the two sliders are respectively located in the two second slots; or

[0073] In the usage state, the centrifuge tube holder is located above the base, and the two first slots are respectively engaged with the locking feet of the two support members;

[0074] The top cover is inverted, the filter column bracket is located above the top cover, and the two sliders are respectively located in the two third slots.

[0075] In one embodiment, the bottom surface of the top cover is further provided with a recessed groove.

[0076] In one embodiment, the two locking feet have different shapes;

[0077] The two first slots have different shapes;

[0078] The two second slots have different shapes;

[0079] The two card blocks have different shapes.

[0080] In one embodiment, the locking pin is provided with a first magnetic element;

[0081] The first card slot is equipped with a second magnetic component;

[0082] The third slot is provided with a third magnetic component;

[0083] In the stored state, the first magnetic element and the third magnetic element are attracted to each other;

[0084] In the state of use, the first magnetic element and the second magnetic element are attracted to each other.

[0085] In one embodiment, the bottom wall of the centrifuge tube placement tank is also provided with a drainage hole.

[0086] In one embodiment, the base is provided with a plurality of first centrifuge tube observation holes, which are formed by recesses from the side of the base into a plurality of centrifuge tube placement slots; and / or

[0087] The centrifuge tube holder is provided with a plurality of second centrifuge tube observation holes, which are formed by recesses from the side of the centrifuge tube holder into a plurality of centrifuge tube mounting holes; and / or

[0088] The filter column bracket is provided with multiple filter column observation holes, which are formed by the side of the filter column bracket being recessed into the multiple filter column mounting holes.

[0089] This utility model features a retractable support bracket with two adjustable tabs, compatible with various sizes of centrifuge tubes and filter columns. Furthermore, this retractable support bracket can be assembled and stored, saving storage space compared to traditional multi-set centrifuge tube racks. The centrifuge tube holder, base, and filter column holder are each equipped with observation windows for easy observation of the volume and state of the liquid in the filter columns and centrifuge tubes. Attached Figure Description

[0090] Figure 1 and Figure 2 This is a perspective view of a retractable support bracket for installing filter columns and centrifuge tubes in use, according to an embodiment of this utility model.

[0091] Figure 3 yes Figure 1 The illustrated embodiment shows a perspective view of the retractable support in its retracted state.

[0092] Figure 4 yes Figure 1 The illustrated embodiment shows a perspective view of the retractable support in use.

[0093] Figure 5 yes Figure 1 A perspective view of the base in the illustrated embodiment.

[0094] Figure 6 yes Figure 1 A perspective view of the filter column bracket in the illustrated embodiment.

[0095] Figure 7 yes Figure 1 A perspective view of the centrifuge tube holder in the illustrated embodiment.

[0096] Figure 8 yes Figure 7 The example shown is a bottom view of the centrifuge tube holder.

[0097] Figure 9 This is a perspective view of the first adjusting piece according to an embodiment of the present invention.

[0098] Figure 10 This is a perspective view of the second adjusting piece according to an embodiment of the present invention.

[0099] Figure 11 yes Figure 1 A perspective view of the top cover in the illustrated embodiment.

[0100] Figure 12 yes Figure 1 The diagram shows the usage status of the filter column bracket and top cover in the illustrated embodiment.

[0101] Reference numerals: 100, retractable support; 1, base; 11, seat; 111, centrifuge tube placement slot; 112, first centrifuge tube observation hole; 113, slide groove; 114, drain hole; 12, support component; 121, support column; 122, locking foot; 123, first magnetic component; 2, filter column bracket; 21, filter column mounting hole; 22, filter column observation hole; 23, slider; 24, locking block; 25, first limiting block; 3, centrifuge tube bracket; 31, centrifuge tube mounting hole; 32, first... Two centrifuge tube observation holes; 33, first slot; 34, second slot; 35, second limiting block; 36, first limiting groove; 37, second magnetic component; 4, top cover; 41, groove; 42, second limiting groove; 43, third slot; 44, third magnetic component; 5, first adjusting plate; 51, first adjusting hole; 52, first insertion hole; 53, first limiting hole; 6, second adjusting plate; 61, second adjusting hole; 62, second insertion hole; 63, second limiting hole; 7, centrifuge tube; 8, filter column; Detailed Implementation

[0102] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0103] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.

[0104] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings to provide a clearer understanding of the purpose, features, and advantages of this utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of this utility model, but are merely illustrative of the essential spirit of the technical solution of this utility model.

[0105] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0106] The singular forms “a” and “the” used in this specification and the appended claims include plural references unless otherwise expressly stated herein. It should be noted that the term “or” is generally used to mean “and / or” unless otherwise expressly stated herein.

[0107] In the following description, in order to clearly demonstrate the structure and working method of this utility model, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0108] Centrifuge tubes are common laboratory and industrial containers used to separate and analyze particles or components in liquid suspensions by using centrifugal force to separate particles or components in a sample.

[0109] A filter column is a pre-filled tubular column, similar in appearance to a centrifuge tube, with an opening at the bottom. Liquid samples can flow through the packing material. By selecting a solvent of appropriate polarity, the target analytes in the sample can be rinsed and eluted. It is commonly used in sample pretreatment steps such as impurity removal and desalting. When using a filter column, centrifuge tubes of different sizes should be placed below it to collect waste liquid or eluent.

[0110] Because filter columns need to be used in conjunction with centrifuge tubes, and filter columns and centrifuge tubes come in various sizes, such as 1.5ml, 4ml, and 15ml centrifuge tubes with different outer diameters, it is necessary to develop a device that can accommodate filter columns and centrifuge tubes of various sizes. In addition, the device also needs to be easy to store and assemble.

[0111] This utility model relates to a retractable support 100, such as Figure 1-3 As shown, the retractable support 100 includes a base 1, a centrifuge tube holder 3, and a filter column holder 2. The base 1 is used to support the bottom of the centrifuge tube 7, while the centrifuge tube holder 3 can fix the top of the centrifuge tube 7. The filter column holder 2 is used to install the filter column 8. The base 1, centrifuge tube holder 3, and filter column holder 2 can be assembled together under the storage device, or they can be used together in the use state. The operation is very simple.

[0112] Specifically, such as Figure 2 As shown, the base 1 is provided with multiple centrifuge tube placement slots 111. The centrifuge tube placement slots 111 are formed by the recess of the top surface of the base 1 and can accommodate the bottom of the centrifuge tubes 7. Each centrifuge tube placement slot 111 is also provided with a different number next to it, which is convenient for recording experimental data and cooperating with the filter column 8.

[0113] The centrifuge tube holder 3 is provided with multiple centrifuge tube mounting holes 31, which penetrate the centrifuge tube holder 3 vertically. (Continue to refer to...) Figure 2 Multiple centrifuge tube mounting holes 31 and multiple centrifuge tube placement slots 111 are aligned vertically. The centrifuge tube mounting holes 31 are used to fix the top of the centrifuge tubes 7. Each centrifuge tube mounting hole 31 is also numbered, and the numbers of the centrifuge tube mounting holes 31 and the centrifuge tube placement slots 111 correspond one-to-one to prevent inversion.

[0114] The filter column bracket 2 is provided with multiple filter column mounting holes 21, which penetrate the filter column bracket 2 vertically and are aligned with multiple centrifuge tube mounting holes 31 vertically. The multiple filter mounting holes are used to install filter columns 8.

[0115] The retractable bracket 100 can switch between a retractable state and a usable state. In the retractable state, the filter column bracket 2, the centrifuge tube bracket 3 and the base 1 can be stacked vertically, and adjacent two can be detachably connected.

[0116] In use, the filter column holder 2 is located above the centrifuge tube holder 3 and is detachably connected to the centrifuge tube holder 3, while the centrifuge tube holder 3 is located on the base 1 and is detachably connected to the base 1. In use, the multiple filter column mounting holes 21, multiple centrifuge tube mounting holes 31, and multiple centrifuge tube placement slots 111 are aligned vertically from top to bottom. Multiple filter columns 8 are located above multiple centrifuge tubes 7, and the centrifuge tubes 7 receive the liquid filtered by the filter columns 8.

[0117] In one embodiment, the base 1 includes a seat body 11 and two support members 12. The seat body 11 is a quadrangular prism extending along a first direction. Multiple centrifuge tube placement slots 111 are arranged in two rows and formed by a recess in the top surface of the seat body 11, with the two rows of centrifuge tube placement slots 111 spaced apart. Preferably, the bottom surface of the centrifuge tube placement slots 111 is also provided with drainage holes extending to the bottom surface of the seat body 11. If liquid accidentally falls into the centrifuge tube placement slots 111, it can flow out through the drainage holes.

[0118] The side of the base 11 is also provided with a plurality of first centrifuge tube observation holes 112. The plurality of first centrifuge tube observation holes 112 are formed by the recesses of the side of the base 1 into the plurality of centrifuge tube placement grooves 111, which are used to observe the liquid collection status inside the centrifuge tube 7.

[0119] Of course, the centrifuge tube holder 3 can also be provided with multiple second centrifuge tube observation holes 32, which are formed by recesses on the side of the centrifuge tube holder 3 into multiple centrifuge tube mounting holes 31. The filter column holder 2 can also be provided with multiple filter column observation holes 22, which are formed by recesses on the side of the filter column holder 2 into multiple filter column mounting holes 21, for observing the filtration status of the filter column.

[0120] The two support members 12 are respectively connected to the two ends of the base 11 along the first direction and extend vertically beyond the top surface of the base 11. That is, the tops of the two support members 12 are higher than the top surface of the base 11.

[0121] In the stored state, the filter column holder 2 and the centrifuge tube holder 3 can be snapped together, and the centrifuge tube holder 3 and the base 11 can also be snapped together. In the usage state, both ends of the centrifuge tube holder 3 are snapped together with two support members 12, thus allowing the centrifuge tube holder 3 and the base 11 to be spaced apart. The filter column holder 2 can also be snapped together with the centrifuge tube holder 3.

[0122] exist Figure 4 and Figure 5 In the specific embodiment shown, the top surface of the seat 11 has two sliding grooves 113, which are open to the same side of the seat 11.

[0123] Each support member 12 includes a support column 121 and a retaining foot 122. The support column 121 is a plate extending vertically, and its dimension along the second direction is the same as the width dimension of the base 11 along the second direction. The retaining foot 122 is connected to the inner side of the top end of the support column 121. The retaining feet 122 of the two support members 12 are respectively arranged opposite to each other, and the length of the two retaining feet 122 along the second direction is less than the length dimension of the base 11 and the support column 121 along the second direction.

[0124] The bottom surface of the centrifuge tube holder 3 is provided with two first slots 33, which are located at both ends of the centrifuge tube holder 3 along a first direction and open towards both ends of the centrifuge tube holder 3. The top surface of the centrifuge tube holder 3 is provided with two second slots 34, which are also located at both ends of the centrifuge tube holder 3 and aligned with the two first slots 33 along the vertical direction.

[0125] The bottom surface of the filter column bracket 2 is provided with two sliders 23. The two sliders 23 are plate-shaped extending vertically and located at both ends of the filter column bracket 2 along the first direction. The two sliders 23 have a certain height. The top surface of the filter column bracket 2 is provided with two locking blocks 24. The two locking blocks 24 are strip-shaped extending along the second direction and are aligned with the two sliders 23 in the vertical direction.

[0126] In the stowed state, the filter column bracket 2 is located on the top surface of the base 11, and the two sliders 23 slide into the two grooves 113 from the side of the base 11. The centrifuge tube bracket 3 is located on the top surface of the filter column bracket 2, and the two locking blocks 24 are located in the two first locking slots 33.

[0127] In use, the two first slots 33 are respectively locked outside the locking feet 122 of the two support members 12, and the two sliders 23 are respectively located in the two second slots 34.

[0128] In the first embodiment of this utility model, the retractable support 100 further includes a first adjusting plate 5. The first adjusting plate 5 is a thin sheet extending along a first direction and is provided with a plurality of first adjusting holes 51 and two first insertion holes 52. The diameter of the first adjusting holes 51 is different from the diameter of the filter column mounting holes 21, and the two first insertion holes 52 are respectively located at both ends of the first adjusting plate 5.

[0129] In its stowed state, the first adjusting plate 5 is stacked between the filter column bracket 2 and the base 11, and the two sliders 23 pass through the two first insertion holes 52 and extend into the two sliding grooves 113. During installation, the centrifuge tube bracket 3 can be installed on the filter column bracket 2 first, the two sliders 23 can be inserted into the two insertion holes of the first adjusting plate 5 respectively, and then the sliders 23 can be slid into the sliding grooves 113 of the base 11.

[0130] In use, the first adjusting plate 5 is located on the top surface of the filter column bracket 2, as shown below. Figure 2 As shown, multiple first adjustment holes 51 and multiple filter column mounting holes 21 are aligned vertically, and two locking blocks 24 are respectively located in two first insertion holes 52. The first adjustment piece 5 is installed above the filter column bracket 2. Since the inner diameters of the first adjustment holes 51 and the filter column mounting holes 21 are different, filter columns 8 of different capacities can be adapted.

[0131] Select centrifuge tube 7 with a larger capacity. The bottom end of the centrifuge tube 7 is located in the centrifuge tube placement slot of the base, and the top end is located in the centrifuge tube mounting hole.

[0132] In the second embodiment of this utility model, the first adjusting plate 5 is also provided with a plurality of first adjusting holes 51 and two first insertion holes 52, and the diameter of the first adjusting holes 51 is different from the diameter of the centrifuge tube mounting hole 31.

[0133] In the stored state, the first adjustment piece 5 is also stacked between the filter column bracket 2 and the base 11. The two first insertion holes 52 are aligned with the two slide grooves 113 in the vertical direction. The two sliders 23 pass through the two first insertion holes 52 and extend into the two slide grooves 113 respectively.

[0134] In use, the first adjusting plate 5 is located on the top surface of the centrifuge tube holder 3, and the two sliders 23 pass through the two first insertion holes 52 and extend into the two second slots 34 respectively. During installation, the sliders 23 of the filter column holder 2 can be inserted into the first insertion holes 52 of the first adjusting plate 5 first, and then into the two second slots 34. Alternatively, the second adjusting plate 6 can be stacked on the top surface of the centrifuge tube holder 3, with the two second insertion holes 62 aligned vertically with the two second slots 34 of the centrifuge tube holder 3. Therefore, the two sliders 23 of the filter column holder 2 can be directly inserted into the first insertion holes 52 of the first adjusting plate 5 and the second slots 34 of the centrifuge tube holder 3 respectively.

[0135] Preferably, the diameters of the first adjustment hole 51, the filter column mounting hole 21, and the centrifuge tube mounting hole 31 are all different.

[0136] In the stored state, the first adjustment piece 5 is located between the filter column bracket 2 and the base 11, and the two sliders 23 pass through the two first insertion holes 52 and extend into the two sliding grooves 113, as is the case above, and will not be described again.

[0137] However, in use, the first adjusting plate 5 can be placed on the top surface of the filter column holder 2 or stacked on the top surface of the centrifuge tube holder 3. When the first adjusting plate 5 is stacked on the top surface of the filter column holder 2, the two locking blocks 24 are respectively located in the two first insertion holes 52 of the first adjusting plate 5. When the first adjusting plate 5 is located on the top surface of the centrifuge tube holder 3, the two sliders 23 pass through the two first insertion holes 52 and extend into the two second locking slots 34. That is to say, the two first sliders 23, the two locking blocks 24, the two sliding slots 113 and the two first insertion holes 52 are aligned vertically, and the first adjusting plate 5 can adjust the aperture of both the filter column holder 2 and the centrifuge tube holder 3.

[0138] In the third embodiment of this utility model, the retractable bracket 100 is provided with a second adjustment piece 6 in addition to the first adjustment piece 5 mentioned above. The first adjustment piece 5 is provided with a plurality of first adjustment holes 51 and two first insertion holes 52, while the second adjustment piece 6 is provided with a plurality of second adjustment holes 61 and two second insertion holes 62.

[0139] In this embodiment, the diameter of the first adjustment hole 51 is different from the diameter of the filter column mounting hole 21, and it is used to adjust the diameter of the filter column mounting hole 21. Similarly, the diameter of the second adjustment hole 61 is different from the diameter of the centrifuge tube mounting hole 31, and it is used to adjust the diameter of the centrifuge tube mounting hole 31.

[0140] In its stored state, such as Figure 3As shown, the first adjusting plate 5 and the second adjusting plate 6 are stacked between the filter column bracket 2 and the base 11, respectively. The two sliders 23 pass through the two first insertion holes 52 of the first adjusting plate 5 and the two second insertion holes 62 of the second adjusting plate 6, respectively, and extend into the two sliding grooves 113. During installation, the first adjusting plate 5 and the second adjusting plate 6 can be installed at the bottom of the filter column bracket 2 first, and then the two sliders 23 can be slid into the two sliding grooves 113 respectively.

[0141] In use status, such as Figure 4 As shown, the first adjusting plate 5 is located on the top surface of the filter column bracket 2, and the two locking blocks 24 are respectively located in the two first insertion holes 52. The second adjusting plate 6 is located on the top surface of the centrifuge tube bracket 3, and the two sliders 23 pass through the two second insertion holes 62 and extend into the two second locking slots 34 respectively. The centrifuge tube 7 in this embodiment has a small capacity, so it can only be suspended on the second adjusting plate and the centrifuge tube bracket and cannot touch the base.

[0142] In the third embodiment, the first adjusting plate 5 can only be adapted to the filter column bracket 2, and the second adjusting plate 6 can only be adapted to the centrifuge tube bracket 3.

[0143] In the fourth embodiment of this utility model, similar to the third embodiment, the retractable bracket 100 further includes a first adjusting plate 5 and a second adjusting plate 6. The first adjusting plate 5 is provided with a plurality of first adjusting holes 51 and two first insertion holes 52. The second adjusting plate 6 is provided with a plurality of second adjusting holes 61 and two second insertion holes 62.

[0144] The difference lies in the diameter of the first adjustment hole 51, which differs from the diameters of the filter column mounting hole 21 and the centrifuge tube mounting hole 31. Similarly, the diameter of the second adjustment hole 61 differs from both the filter column mounting hole 21 and the centrifuge tube mounting hole 31. The first adjustment plate 5 and the second adjustment plate 6 can adjust the inner diameters of the filter column mounting hole 21 and the centrifuge tube mounting hole 31, respectively. In other words, the first adjustment plate 5 and the second adjustment plate 6 can be adapted not only to the filter column bracket 2 but also to the centrifuge tube bracket 3.

[0145] Furthermore, the aperture of the first adjusting plate 5 and the aperture of the second adjusting plate 6 can be the same or different.

[0146] In the storage state, the first adjustment piece 5 and the first adjustment piece 62 are respectively located between the filter column bracket 2 and the base 11, and the two sliders 23 pass through the two first insertion holes 52 and the two second insertion holes 62 and extend into the two sliding grooves 113.

[0147] In this embodiment, such as Figure 1 and Figure 4As shown, there are two usage states. In one usage state, the first adjusting plate 5 is located on the top surface of the filter column bracket 2, and the two locking blocks 24 are respectively located in the two first insertion holes 52. The second adjusting plate 6 is located on the top surface of the centrifuge tube bracket 3, and the two sliders 23 pass through the two second insertion holes 62 and extend into the two second locking slots 34 respectively.

[0148] In another usage configuration, the second adjusting plate 6 is detachably mounted on the top surface of the filter column bracket 2, with the two locking blocks 24 located within the two second insertion holes 62 respectively. The first adjusting plate 5 is mounted on the top surface of the centrifuge tube bracket 3, with the two sliders 23 passing through the two first insertion holes 52 and extending into the two second locking slots 34 respectively.

[0149] In the fifth embodiment of this utility model, based on the fourth embodiment, a first adjusting piece 5 and a second adjusting piece 6 are added, that is, a total of two first adjusting pieces 5 and two second adjusting pieces 6.

[0150] Specifically, such as Figure 1 , Figure 3 , Figure 4 , Figure 9 and Figure 10 As shown, the two first adjusting plates 5 have the same shape, and the two second adjusting plates 6 have the same shape. The two first adjusting plates 5 and the two second adjusting plates 6 can be adapted not only to the filter column bracket 2, but also to the centrifuge tube bracket 3.

[0151] In storage state, such as Figure 3 As shown, the two first adjusting plates 5 and the two first adjusting plates 6 are respectively located between the filter column bracket 2 and the base 11. During installation, the centrifuge tube bracket 3 is installed on the top surface of the filter column bracket 2. After inserting the sliders 23 of the filter column bracket 2 into the first insertion holes 52 of the two first adjusting plates 5 and the second insertion holes 62 of the two second adjusting plates 6, the two sliders 23 are slid into the slide grooves 113 and moved from one side of the base 11 to the top surface of the base 11.

[0152] This embodiment can be used in multiple ways. In one usage state, the first adjusting plate 5 adjusts the inner diameter of the filter column mounting hole 21, and the second adjusting plate 6 adjusts the inner diameter of the centrifuge tube mounting hole 31. Specifically, the first adjusting plate 5 is located on the top surface of the filter column bracket 2, and the two locking blocks 24 are respectively located in the two first insertion holes 52. The second adjusting plate 6 is located on the top surface of the centrifuge tube bracket 3, and the two sliders 23 respectively pass through the two second insertion holes 62 and extend into the two second locking slots 34.

[0153] In the second usage state, the second adjusting plate 6 adjusts the inner diameter of the filter column mounting hole 21, and the first adjusting plate 5 adjusts the inner diameter of the centrifuge tube mounting hole 31.

[0154] Specifically, the second adjusting plate 6 is located on the top surface of the filter column bracket 2, and the two locking blocks 24 are respectively located in the two second insertion holes 62; while the first adjusting plate 5 is located on the top surface of the centrifuge tube bracket 3, and the two sliders 23 pass through the two first insertion holes 52 and extend into the two second locking slots 34 respectively.

[0155] In the third usage state, the inner diameter of the filter column mounting hole 21 and the inner diameter of the centrifuge tube mounting hole 31 are adjusted using the two first adjustment plates 5 respectively.

[0156] Specifically, of the two first adjusting plates 5, one first adjusting plate 5 is installed on the top surface of the filter column bracket 2, and the two locking blocks 24 are respectively located in the two first insertion holes 52, while the other first adjusting plate 5 is installed on the top surface of the centrifuge tube bracket 3, and the two sliders 23 pass through the two first insertion holes 52 of the first adjusting plate 5 and extend into the two second locking slots 34 respectively.

[0157] In the fourth operating state, the inner diameter of the filter column mounting hole 21 and the inner diameter of the centrifuge tube mounting hole 31 are adjusted using the two second adjustment plates 6 respectively.

[0158] Similar to the implementation method of using two first adjusting plates 5 to adjust the inner diameter of the filter column mounting hole 21 and the centrifuge tube mounting hole 31, one of the second adjusting plates 6 is located on the top surface of the filter column bracket 2, and the two locking blocks 24 are respectively located in the two second insertion holes 62; the other second adjusting plate 6 is located on the top surface of the centrifuge tube bracket 3, and the two sliders 23 pass through the two second insertion holes 62 and extend into the two second locking slots 34 respectively.

[0159] Furthermore, the first adjusting plate 5 is provided with a first limiting hole 53, and the second adjusting plate 6 is provided with a second limiting hole 63.

[0160] The top surface of the filter column bracket 2 is provided with a first limiting block 25, while the top surface of the centrifuge tube bracket 3 is provided with a second limiting block 35, and the bottom surface is provided with a recessed first limiting groove 36.

[0161] The first limiting hole 53, the second limiting hole 63, the first limiting block 25, and the second limiting block 35 are aligned vertically.

[0162] In the stored state, the centrifuge tube holder 3 is located on the top surface of the filter column holder 2, while the first limiting block 25 is engaged in the first limiting groove 36, increasing the stability of the centrifuge tube holder 3 and the filter column holder 2.

[0163] When in use, if the first adjusting plate 5 is located on the top surface of the filter column bracket 2, the two locking blocks 24 are respectively located in the two first insertion holes 52 of the first adjusting plate 5, and the first limiting block 25 on the top surface of the filter column bracket 2 is locked in the first limiting hole, further increasing the stability of the first adjusting plate 5 and the filter column bracket 2.

[0164] If the second adjusting plate 6 is located on the top surface of the centrifuge tube holder 3, the two sliders 23 of the filter column holder 2 pass through the two second insertion holes 62 of the second adjusting plate 6 and extend into the two second slots 34 respectively, while the second limiting block 35 of the centrifuge tube holder 3 is locked in the second limiting hole of the second adjusting plate 6.

[0165] Of course, if the first adjusting plate 5 is installed on the top surface of the centrifuge tube holder 3, the two sliders 23 of the filter column holder 2 pass through the two first insertion holes 52 of the first adjusting plate 5 and are then inserted into the two second slots 34, while the second limiting block 35 on the top surface of the centrifuge tube holder 3 is locked in the first limiting hole.

[0166] If the second adjusting plate 6 is installed on the top surface of the filter column bracket 2, the two locking blocks 24 of the filter column bracket 2 are respectively located in the two second insertion holes 62 of the second adjusting plate 6, and the first limiting block 25 is locked in the second limiting hole of the second adjusting plate 6.

[0167] As a preferred embodiment, the retractable support 100 also includes a top cover 4, which can be used alone with the filter column bracket 2, the centrifuge tube bracket 3 and the base 1, or with the first adjusting plate 5 and the second adjusting plate 6.

[0168] In the embodiment shown in the figure, the bottom surface of the top cover 4 is provided with two third slots 43 and a second limiting slot 42. The top surface of the top cover 4 is the side that is on top when it is in the stored state, and the bottom surface is the side that is on the bottom when it is in the stored state. For easy distinction, the bottom surface of the top cover 4 is defined as the first side surface.

[0169] The first side of the top cover 4 is provided with two recessed third slots 43, such as Figure 11 and Figure 12 As shown, the two third slots 43 are located at both ends of the top cover 4 along the first direction and are aligned vertically with the two locking feet 122 and the two sliders 23. The middle area of ​​the top cover 4 is provided with a large groove 41 and a second limiting groove 42 surrounded by the groove 41. The second limiting groove 42 is aligned vertically with the first limiting block 25 and the second limiting block 35.

[0170] In the stowed state, the two first adjusting tabs 5 and the two second adjusting tabs 6 are located on the top surface of the base 11. The slider 23 of the filter column bracket 2 passes through the first insertion hole 52 and the second insertion hole 62 and enters the slide groove 113. The centrifuge tube bracket 3 is installed on the top surface of the filter column bracket 2 and is located on the bottom surface of the two locking feet 122. The two locking blocks 24 are respectively located in the two first locking slots 33, and the first limiting block 25 is located in the first limiting groove 36. The top cover 4 covers the support member 12, and the two locking feet 122 are respectively locked in the two third locking slots 43 of the top cover 4. The second limiting block 35 on the top surface of the centrifuge tube 7 is located in the second limiting groove 42 of the top cover 4. The centrifuge tube bracket 3 and the top cover 4 are locked together.

[0171] In use, the centrifuge tube holder 3 is located above the base 11, with the two first slots 33 respectively engaging with the locking feet 122 of the two support members 12. The filter column holder 2 can be installed above the centrifuge tube holder 3, with the two sliders 23 respectively located in the two second slots 34. In other cases, if it is necessary to replace the centrifuge tube 7, the filter column holder 2 can be removed from the centrifuge tube holder 3 and placed on the top cover 4.

[0172] Top cover 4 needs to be inverted, such as Figure 12 As shown, when the top cover 4 is inverted, its first side faces upward, and the two sliders 23 of the filter column bracket 2 are respectively installed in the two third slots 43 of the top cover 4. The filtered liquid from the filter column 8 in the filter column bracket 2 can drip into the groove 41 of the top cover 4.

[0173] Furthermore, a first magnetic element 123 is embedded in the clip 122, a second magnetic element 37 is embedded in the first slot 33 of the centrifuge tube holder 3, and a third magnetic element 44 is embedded in the third slot 43 of the top cover 4. The magnetic properties of the first magnetic element, the second magnetic element, and the third magnetic element 44 are opposite.

[0174] In the stored state, the top cover 4 covers the centrifuge tube holder 3, and the locking foot 122 is locked in the third locking groove 43 of the top cover 4. The first magnetic element 123 in the locking foot 122 is attracted to the third magnetic element 44 in the third locking groove 43, which increases stability.

[0175] In use, the centrifuge tube holder 3 is connected to the clamp 122. The first groove 33 of the centrifuge tube holder 3 is clamped outside the clamp 122. The second magnetic element 37 in the first groove 33 and the first magnetic element 123 of the clamp 122 attract each other, providing a tight fixing effect and support effect.

[0176] To prevent the centrifuge tube holder 3 or filter column holder 2 from being inserted backwards, as a preferred solution, the two locking feet 122 can be set to different shapes, for example, the locking feet 122 can be set to different lengths, and the two first slots 33 of the centrifuge tube holder 3 can also be set to different shapes. The two locking feet 122 can be inserted into the two first slots 33, and directional operation is prevented.

[0177] Of course, the two second slots 34 on the top surface of the centrifuge tube holder 3 can also be set in different shapes. For example, the width or length of the two second slots 34 may be different, while the two sliders 23 at the bottom of the filter column holder 2 need to match the two second slots 34 one by one and be set in different shapes.

[0178] Similarly, the two first insertion holes 52 of the first adjusting plate 5, the two second insertion holes 62 of the second adjusting plate 6, and the two sliding grooves 113 of the base 11 need to match the shape of the slider 23 one by one to avoid reverse insertion, and ensure that the positions of the multiple filter column mounting holes 21, multiple centrifuge tube mounting holes 31, multiple first adjusting holes 51, multiple second adjusting holes 61, and multiple centrifuge tube placement grooves 111 correspond one by one to form a complete filtration device.

[0179] This utility model features a retractable support bracket with two adjustable tabs, compatible with various sizes of centrifuge tubes and filter columns. Furthermore, this retractable support bracket can be assembled and stored, saving storage space compared to traditional multi-set centrifuge tube racks. The centrifuge tube holder, base, and filter column holder are each equipped with observation windows for easy observation of the volume and state of the liquid in the filter columns and centrifuge tubes.

[0180] The preferred embodiments of the present invention have been described in detail above, but it should be understood that, if necessary, aspects of the embodiments can be modified to utilize aspects, features, and concepts from various patents, applications, and publications to provide other embodiments.

[0181] In light of the detailed description above, these and other changes can be made to the embodiments. Generally, the terminology used in the claims should not be considered limited to the specific embodiments disclosed in the specification and claims, but should be understood to include all possible embodiments together with the full scope of equivalents enjoyed by these claims.

[0182] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A retractable support frame, characterized in that, include: The base is provided with multiple centrifuge tube placement slots; A centrifuge tube holder, wherein the centrifuge tube holder is provided with a plurality of centrifuge tube mounting holes, and the plurality of centrifuge tube mounting holes penetrate the centrifuge tube holder in a vertical direction; A filter column bracket is provided with a plurality of filter column mounting holes, which penetrate the filter column bracket vertically. The retractable bracket is configured to switch between a retractable state and a usable state. In the stored state, the filter column bracket, the centrifuge tube bracket, and the base are detachably connected; In the usage state, the filter column bracket, the centrifuge tube bracket, and the base are detachably connected, and the plurality of filter column mounting holes, the plurality of centrifuge tube mounting holes, and the plurality of centrifuge tube placement slots are aligned vertically from top to bottom.

2. The retractable support according to claim 1, characterized in that, The base includes: The base body is provided with the plurality of centrifuge tube placement slots; Two support members are respectively connected to both ends of the base and extend vertically beyond the top surface of the base; In the stored state, the filter column bracket, the centrifuge tube bracket, and the base are detachably connected; In the usage state, the filter column bracket is detachably connected to the centrifuge tube bracket, and the centrifuge tube bracket and the two support members are detachably connected and spaced apart from the base.

3. The retractable support according to claim 2, characterized in that, In the stored state, the centrifuge tube bracket, the filter column bracket, and the base are detachably connected from top to bottom.

4. The retractable bracket according to claim 3, characterized in that, The top surface of the base is provided with two sliding grooves, which open toward the same side of the base. The support includes support columns connected to both ends of the base and locking feet connected to the inner surfaces of the support columns; The centrifuge tube holder has two first slots on its bottom surface and two second slots on its top surface; The bottom surface of the filter column bracket is provided with two sliders, and the top surface is provided with two locking blocks; In the stored state, the filter column bracket is located on the top surface of the base, and the two sliders are respectively located in the two grooves; the centrifuge tube bracket is located on the top surface of the filter column bracket, and the two locking blocks are respectively located in the two first locking slots; In the usage state, the two first slots are respectively engaged with the locking feet of the two support members, and the two sliders are respectively located in the two second slots.

5. The retractable bracket according to claim 4, characterized in that, The retractable bracket also includes a first adjustment piece, which has multiple first adjustment holes and two first insertion holes; The diameter of the first adjustment hole is different from the diameter of the filter column mounting hole; In the retracted state, the first adjustment piece is located between the filter column bracket and the base, and the two sliders respectively pass through the two first insertion holes and extend into the two sliding grooves; In the usage state, the first adjustment piece is located on the top surface of the filter column bracket, and the two locking blocks are respectively located in the two first insertion holes.

6. The retractable bracket according to claim 4, characterized in that, The retractable bracket also includes a first adjustment piece, which has multiple first adjustment holes and two first insertion holes; The diameter of the first adjustment hole is different from the diameter of the centrifuge tube mounting hole; In the retracted state, the first adjustment piece is located between the filter column bracket and the base, and the two sliders respectively pass through the two first insertion holes and extend into the two sliding grooves; In the usage state, the first adjustment plate is located on the top surface of the centrifuge tube holder, and the two sliders pass through the two first insertion holes and extend into the two second slots respectively.

7. The retractable bracket according to claim 4, characterized in that, The retractable bracket also includes a first adjustment plate, which has multiple first adjustment holes and two first insertion holes. The diameters of the first adjustment holes, the filter column mounting holes, and the centrifuge tube mounting holes are all different. In the retracted state, the first adjustment piece is located between the filter column bracket and the base, and the two sliders respectively pass through the two first insertion holes and extend into the two sliding grooves; In the stated usage state, the first adjusting plate is located on the top surface of the filter column bracket, and the two locking blocks are respectively located within the two first insertion holes; or, In the usage state, the first adjustment plate is located on the top surface of the centrifuge tube holder, and the two sliders pass through the two first insertion holes and extend into the two second slots respectively.

8. The retractable bracket according to claim 4, characterized in that, The retractable support also includes: The first adjusting plate is provided with multiple first adjusting holes and two first insertion holes. The second adjusting plate is provided with multiple second adjusting holes and two second insertion holes; The diameter of the first adjustment hole is different from the diameter of the filter column mounting hole; The diameter of the second adjustment hole is different from the diameter of the centrifuge tube mounting hole; In the retracted state, the first adjustment piece and the second adjustment piece are respectively located between the filter column bracket and the base, and the two sliders respectively pass through the two first insertion holes and the two second insertion holes and extend into the two sliding grooves; In the usage state, the first adjusting plate is located on the top surface of the filter column bracket, and the two locking blocks are respectively located in the two first insertion holes; the second adjusting plate is located on the top surface of the centrifuge tube bracket, and the two sliders respectively pass through the two second insertion holes and extend into the two second locking slots.

9. The retractable bracket according to claim 4, characterized in that, The retractable support also includes: The first adjusting plate is provided with multiple first adjusting holes and two first insertion holes. The second adjusting plate is provided with multiple second adjusting holes and two second insertion holes; The diameter of the first adjustment hole is different from the diameter of the filter column mounting hole and the centrifuge tube mounting hole; The diameter of the second adjustment hole is different from the diameter of the filter column mounting hole and the centrifuge tube mounting hole; In the retracted state, the first adjustment piece and the second adjustment piece are respectively located between the filter column bracket and the base, and the two sliders respectively pass through the two first insertion holes and the two second insertion holes and extend into the two sliding grooves; In the usage state, the first adjusting plate is located on the top surface of the filter column bracket, and the two locking blocks are respectively located in the two first insertion holes; the second adjusting plate is located on the top surface of the centrifuge tube bracket, and the two sliders respectively pass through the two second insertion holes and extend into the two second locking slots; or In the usage state, the second adjusting plate is located on the top surface of the filter column bracket, and the two locking blocks are respectively located in the two second insertion holes; the first adjusting plate is located on the top surface of the centrifuge tube bracket, and the two sliders respectively pass through the two first insertion holes and extend into the two second locking slots.

10. The retractable bracket according to claim 9, characterized in that, The retractable bracket also includes two first adjustment plates and two second adjustment plates; In the stored state, the two first adjustment tabs and the two second adjustment tabs are respectively located between the filter column bracket and the base; In the usage state, the first adjusting plate is located on the top surface of the filter column bracket, and the two locking blocks are respectively located in the two first insertion holes; the second adjusting plate is located on the top surface of the centrifuge tube bracket, and the two sliders respectively pass through the two second insertion holes and extend into the two second locking slots; or In the usage state, the second adjusting plate is located on the top surface of the filter column bracket, and the two locking blocks are respectively located in the two second insertion holes; the first adjusting plate is located on the top surface of the centrifuge tube bracket, and the two sliders respectively pass through the two first insertion holes and extend into the two second locking slots; or In the usage state, one of the first adjusting plates is located on the top surface of the filter column holder, and the two locking blocks are respectively located in the two first insertion holes; the other first adjusting plate is located on the top surface of the centrifuge tube holder, and the two sliders respectively pass through the two first insertion holes and extend into the two second locking slots; or In the usage state, one of the second adjustment plates is located on the top surface of the filter column bracket, and the two locking blocks are respectively located in the two second insertion holes; the other second adjustment plate is located on the top surface of the centrifuge tube bracket, and the two sliders respectively pass through the two second insertion holes and extend into the two second slots.

11. The retractable bracket according to claim 9, characterized in that, The top surface of the filter column bracket is provided with a first limiting block; The centrifuge tube holder has a second limiting block on its top surface and a first limiting groove on its bottom surface. The first adjusting piece is provided with a first limiting hole; The second adjusting piece is provided with a second limiting hole; In the stored state, the first limiting block is located within the first limiting groove; In the usage state, the first adjusting plate is located on the top surface of the filter column bracket, the two locking blocks are respectively located in the two first insertion holes, and the first limiting block is located in the first limiting hole; the second adjusting plate is located on the top surface of the centrifuge tube bracket, the two sliders respectively pass through the two second insertion holes and extend into the two second locking slots; the second limiting block is located in the second limiting hole; or In the usage state, the second adjusting plate is located on the top surface of the filter column bracket, the two locking blocks are respectively located in the two second insertion holes, and the first limiting block is located in the second limiting hole; the first adjusting plate is located on the top surface of the centrifuge tube bracket, the two sliders respectively pass through the two first insertion holes and extend into the two second locking slots, and the second limiting block is located in the first limiting hole.

12. The retractable support according to claim 1, characterized in that, The base includes: A base body, the base body having two sliding grooves and a plurality of centrifuge tube placement grooves, the two sliding grooves opening towards the same side of the base body; and Two support members, each of the two support members including a support column connected to both ends of the base body and a locking foot connected to the inner side of the support column; The bottom surface of the centrifuge tube holder is provided with a first limiting groove and two first slots, and the top surface is provided with a second limiting block and two second slots; The bottom surface of the filter column bracket is provided with two sliders, and the top surface is provided with a first limiting block and two locking blocks; The retractable bracket also includes a top cover, the bottom surface of which is provided with two third slots and a second limiting slot; In the retracted state, the filter column bracket is located on the top surface of the base, and the two sliders are respectively located in the two grooves; the centrifuge tube bracket is located on the top surface of the filter column bracket and on the bottom surface of the two feet, the two blocks are respectively located in the two first slots, and the first limiting block is located in the first limiting groove; the top cover covers the support member, and the two feet are located in the two third slots, and the second limiting block is located in the second limiting groove; In the usage state, the centrifuge tube holder is located above the base, and the two first slots are respectively engaged with the locking feet of the two support members; the filter column holder is located above the centrifuge tube holder, and the two sliders are respectively located in the two second slots; or In the usage state, the centrifuge tube holder is located above the base, and the two first slots are respectively engaged with the locking feet of the two support members; The top cover is inverted, the filter column bracket is located above the top cover, and the two sliders are respectively located in the two third slots.

13. The retractable bracket according to claim 12, characterized in that, The bottom surface of the top cover is also provided with a groove.

14. The retractable bracket according to claim 12, characterized in that, The two pins have different shapes; The two first slots have different shapes; The two second slots have different shapes; The two card blocks have different shapes.

15. The retractable bracket according to claim 12, characterized in that, The locking pin is equipped with a first magnetic element; The first card slot is equipped with a second magnetic component; The third slot is provided with a third magnetic component; In the stored state, the first magnetic element and the third magnetic element are attracted to each other; In the state of use, the first magnetic element and the second magnetic element are attracted to each other.

16. The retractable bracket according to claim 1, characterized in that, The bottom wall of the centrifuge tube placement trough is also provided with a drainage hole.

17. The retractable bracket according to claim 1, characterized in that, The base is provided with a plurality of first centrifuge tube observation holes, which are formed by recesses from the side of the base into a plurality of centrifuge tube placement slots; and / or The centrifuge tube holder is provided with a plurality of second centrifuge tube observation holes, which are formed by recesses from the side of the centrifuge tube holder into a plurality of centrifuge tube mounting holes; and / or The filter column bracket is provided with multiple filter column observation holes, which are formed by the side of the filter column bracket being recessed into the multiple filter column mounting holes.

Images