CN219830499U

CN219830499U - Test tube fixing seat and sample sampling device

Info

Publication number: CN219830499U
Application number: CN202320709372.6U
Authority: CN
Inventors: 那星; 徐林; 刘一夫; 戚仓
Original assignee: Beijing Ability Technology Co ltd
Current assignee: Beijing Ability Technology Co ltd
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-10-13
Anticipated expiration: 2033-04-03

Abstract

The utility model relates to the technical field of sample treatment, and provides a test tube fixing seat and a sample sampling device. The test tube fixing seat comprises a fixing frame, wherein the fixing frame is provided with a mounting cavity, the mounting cavity is used for mounting a test tube, and the test tube can move relative to the mounting cavity, so that the test tube can be switched between a mounting state and a separation state relative to the mounting cavity; the compressing assembly comprises an elastic piece and a compressing piece, the elastic piece is arranged on the fixing frame, the compressing piece is connected with the elastic piece, and the compressing piece is positioned on the moving path of the test tube; in the installation state, the pressing piece is abutted with the end part of the test tube; when the test tube is switched to the installation state from the separation state, the test tube is abutted with the pressing piece and moves towards the installation cavity along the pressing piece, so that the pressing piece moves towards the elastic piece, and the elastic piece deforms. According to the test tube fixing seat provided by the embodiment of the utility model, the test tube can be inserted and taken out only by one action, the operation is simple, the time can be saved, and the automatic equipment such as a mechanical arm can be used for carrying out the test tube inserting and taking out operation.

Description

Test tube fixing seat and sample sampling device

Technical Field

The utility model relates to the technical field of sample processing, in particular to a test tube fixing seat and a sample sampling device.

Background

In the preparation, analysis, and the like of a sample, the test tube needs to be subjected to operations such as shaking, centrifugation, and the like. This procedure requires the fixing of the test tube, preventing the risk of the test tube coming loose during shaking and centrifugation.

The test tube is fixed in the prior art mostly through threaded connection or complex buckle structure, so that the operation is complex, more time is required to be consumed, and the efficiency is low. And when utilizing automatic equipment such as manipulator to carry out access operation to the test tube, the requirement to automatic equipment such as manipulator is higher, and automatic equipment such as manipulator need carry out comparatively complicated action and can realize the insertion and the takeout of test tube, and then is difficult to utilize automatic equipment such as manipulator to improve degree of automation.

Disclosure of Invention

The present utility model is directed to solving at least one of the technical problems existing in the related art. Therefore, the utility model provides the test tube fixing seat, the test tube is directly inserted downwards or pulled upwards, the insertion and the extraction of the test tube can be realized only by one action, the operation is simple, the time can be effectively saved, the efficiency is improved, the insertion and the extraction of the test tube can be performed by using automatic equipment such as a mechanical arm, and the automation degree of sample preparation analysis can be improved.

The utility model also provides a sample sampling device.

The fixing frame is provided with a mounting cavity, the mounting cavity is used for mounting a test tube, and the test tube can move relative to the mounting cavity, so that the test tube can be switched between a mounting state and a separation state relative to the mounting cavity;

the compressing assembly comprises an elastic piece and a compressing piece, the elastic piece is arranged on the fixing frame, the compressing piece is connected with the elastic piece, and the compressing piece is positioned on the moving path of the test tube;

in the installation state, the pressing piece is abutted with the end part of the test tube;

when the test tube is switched from the separation state to the installation state, the test tube is abutted with the pressing piece and moves towards the installation cavity along the pressing piece, so that the pressing piece moves towards the elastic piece, and the elastic piece deforms.

According to the test tube fixing seat provided by the embodiment of the utility model, before the test tube is installed in the installation cavity, the pressing piece is positioned above the installation cavity, when the test tube is switched from the separation state to the installation state, i.e. the test tube is inserted into the installation cavity, the pressing piece is extruded and kept in contact with the pressing piece, so that the pressing piece moves towards one side of the elastic piece, and the elastic piece deforms along with the movement of the pressing piece. After the test tube is installed to the installation intracavity, when the test tube is in the installed state promptly, the test tube no longer extrudees and compresses tightly the piece, compress tightly the piece and remove towards the installation chamber under the elasticity effect of elastic component this moment, make the tip department that compresses tightly the piece and remove the test tube with the tip butt of test tube, compress tightly the piece and produce the effect of compressing tightly to the test tube this moment, and because compress tightly the piece and be connected with the elastic component, the test tube breaks away from still needs to overcome the elasticity of elastic component from the installation intracavity, and then make the test tube can be stable install at the installation intracavity, when carrying out operations such as vibration, centrifugation, the test tube can not break away from the installation chamber, make operations such as vibration, centrifugation can realize smoothly. When the test tube is switched to the separation state from the installation state, when taking out the test tube from the installation cavity, apply an external force of keeping away from the installation cavity to the test tube for the test tube is to keeping away from the direction of installation cavity and remove, and the test tube produces the extrusion to compressing tightly the piece this moment, makes compressing tightly the piece and removes towards elastic component one side, makes compressing tightly the piece and not on the travel path of test tube, can be smooth take out the test tube from the installation cavity.

From the analysis, the test tube can be directly inserted downwards or pulled upwards, so that the test tube can be inserted and taken out, the test tube can be inserted and taken out only by one action, the operation is simple, the time can be effectively saved, and the efficiency is improved. Because of simple operation, automatic equipment such as a mechanical arm can be utilized to insert and take out the test tube, and the automation degree of sample preparation analysis can be improved.

According to one embodiment of the utility model, the pressing member comprises a first pressing plate, one end of which is connected to the elastic member, and the other end of which abuts against the end of the test tube in the mounted state.

According to one embodiment of the utility model, the first hold-down plate is provided with a guide surface which is inclined gradually downwards in the direction of the first hold-down plate to the mounting cavity.

According to one embodiment of the utility model, the elastic piece comprises an elastic plate, one end of the elastic plate is connected with the fixing frame, the other end of the elastic plate is connected with the pressing piece, and a first included angle is formed between the elastic plate and the wall surface of the fixing frame.

According to one embodiment of the utility model, the pressing member comprises a second pressing plate, the first pressing plate is connected with the second pressing plate and the elastic plate, in the installation state, the second pressing plate is abutted with the end portion of the test tube, a second included angle is formed between the first pressing plate and the elastic plate, and one end, far away from the first pressing plate, of the second pressing plate is abutted with the elastic plate.

According to one embodiment of the utility model, the compressing assembly comprises a mounting plate fixedly mounted on the fixing frame, one end of the elastic plate is detachably connected with the mounting plate, and the other end of the elastic plate is connected with the compressing piece.

According to one embodiment of the utility model, the first compression plate, the second compression plate and the elastic plate are integrally formed.

According to one embodiment of the utility model, the pressing assembly comprises a mounting seat fixedly mounted on the fixing frame, a sliding cavity is formed in the mounting seat, the elastic piece is mounted in the sliding cavity, at least part of the pressing piece is located in the sliding cavity and can move relative to the sliding cavity, one end of the pressing piece is abutted against the elastic piece, and in the mounting state, the other end of the pressing piece is abutted against the end of the test tube.

According to one embodiment of the utility model, the test tube holder comprises at least two compression assemblies, and in the mounted state, the compression members of the at least two compression assemblies are in abutment with the ends of the test tube.

According to a second aspect of the present utility model, a sample sampling device includes a device body and the above-mentioned test tube fixing base, where the test tube fixing base is mounted on the device body.

According to the sample sampling device of the embodiment of the present utility model, the above-mentioned tube fixing seat has all the technical effects of the above-mentioned tube fixing seat, and the description thereof is omitted herein.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic view of a test tube holder according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a part of a structure of a test tube holder according to an embodiment of the present utility model, wherein a test tube is in a separated state and an installed state;

FIG. 3 is a schematic view of a part of a structure of a test tube holder according to an embodiment of the present utility model, where a test tube is in an installed state;

FIG. 4 is a schematic structural view of a test tube holder according to an embodiment of the present utility model, wherein the pressing member is a positioning bead;

fig. 5 is a schematic view of a portion of the structure of fig. 4 in an embodiment of the present utility model.

Reference numerals:

1. a fixing frame; 2. an elastic member; 3. a pressing member; 4. a test tube; 5. a mounting plate; 6. a mounting base;

11. a mounting cavity; 21. an elastic plate; 31. a first compacting plate; 32. a guide surface; 33. a second compacting plate;

34. positioning beads; 61. a sliding chamber.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The test tube holder and the sample sampling device according to the present utility model are described below with reference to fig. 1 to 5.

According to an embodiment of the first aspect of the present utility model, as shown in fig. 1, 2 and 3, the tube holder comprises a holder 1 and a pressing assembly, the holder 1 is provided with a mounting cavity 11, the mounting cavity 11 is used for mounting the tube 4, the tube 4 can move relative to the mounting cavity 11, so that the tube 4 can be switched between a mounting state and a separating state relative to the mounting cavity 11, the pressing assembly comprises an elastic member 2 and a pressing member 3, the elastic member 2 is mounted on the holder 1, the pressing member 3 is connected with the elastic member 2, and the pressing member 3 is located on a moving path of the tube 4.

Wherein, in the installed state, compress tightly the tip butt of piece 3 and test tube 4, when test tube 4 switched to the installed state from the separation state, test tube 4 and compress tightly 3 butt to remove to installation cavity 11 along compressing tightly 3, make compressing tightly 3 remove to elastic component 2, elastic component 2 takes place deformation.

According to the test tube fixing seat provided by the embodiment of the utility model, before the test tube 4 is installed in the installation cavity 11, the pressing piece 3 is positioned above the installation cavity 11, and when the test tube 4 is switched from the separation state to the installation state, i.e. the test tube 4 is inserted into the installation cavity 11, the pressing piece 3 is pressed and kept in contact with the pressing piece 3, so that the pressing piece 3 moves towards one side of the elastic piece 2, and the elastic piece 2 deforms along with the movement. After the test tube 4 is installed in the installation cavity 11, namely when the test tube 4 is in the installation state, the test tube 4 no longer extrudes the compressing element 3, at this moment, the compressing element 3 moves towards the installation cavity 11 under the action of the elastic force of the elastic element 2, the compressing element 3 moves to the end part of the test tube 4 and is abutted with the end part of the test tube 4, at this moment, the compressing element 3 compresses tightly the test tube 4, and because the compressing element 3 is connected with the elastic element 2, the test tube 4 is separated from the installation cavity 11 and still needs to overcome the elastic force of the elastic element 2, and then the test tube 4 can be stably installed in the installation cavity 11, and when the operations such as oscillation and centrifugation are performed, the test tube 4 cannot be separated from the installation cavity 11, so that the operations such as oscillation and centrifugation can be smoothly realized. When test tube 4 is switched to the separation state by the installation state, when taking out test tube 4 from installation cavity 11, apply an external force of keeping away from installation cavity 11 to test tube 4 for test tube 4 moves to the direction of keeping away from installation cavity 11, and test tube 4 produces the extrusion to compressing tightly piece 3 this moment, makes compressing tightly piece 3 to elastic component 2 one side remove, makes compressing tightly piece 3 not on test tube 4's travel path, can be smooth take out test tube 4 from installation cavity 11.

Specifically, the elastic member 2 can be deformed in a direction away from the mounting cavity 11, so that the pressing member 3 can be switched between a first position, in which the pressing member 3 abuts against the end portion of the test tube 4, and the test tube 4 is mounted in the mounting cavity 11, and a second position, in which the test tube 4 is separated from the mounting cavity 11, and the pressing member 3 is located on the moving path of the test tube 4.

From the above analysis, it can be seen that the test tube 4 is directly inserted downwards or pulled upwards, so that the insertion and the extraction of the test tube 4 can be realized, only one action is needed for the insertion and the extraction of the test tube 4, the operation is simple, the time can be effectively saved, and the efficiency is improved. Due to the simple operation, the automatic equipment such as a mechanical arm can be used for inserting and taking out the test tube 4, and the automation degree of sample preparation analysis can be improved.

When needing to notice, when test tube 4 is in the installed state, compress tightly the tip butt of piece 3 and test tube 4, elastic component 2 is in deformation state, and elastic component 2 has not yet fully recovered the original shape at this moment promptly, and elastic component 2 exerts a force towards test tube 4 direction to compressing tightly piece 3 for compressing tightly piece 3 can be better compress tightly fixedly to test tube 4. When the test tube 4 is pressed by the pressing member 3, the pressing force applied to the test tube 4 by the pressing member 3 can be decomposed into two forces, namely, a downward pressing force in the axial direction of the test tube 4 and a radial pressing force in the radial direction of the test tube 4. Wherein, axial pressure makes test tube 4 unable outwards remove, and radial force makes the pressure grow between test tube 4 and the installation cavity 11 to make between test tube 4 and the installation cavity 11 stiction grow, and then make the required relative acceleration of test tube 4 roll-off installation cavity 11 bigger. According to the formula f=ma derived by newton's second law, after the acceleration range of the installation cavity 11 during operation is fixed, after the test tube 4 and the mass of the sample in the tube are fixed, the elastic force of the elastic piece 2 or the roughness of the contact surface between the installation cavity 11 and the test tube 4 can be adjusted, so that the axial outward stress of the test tube 4 during operation can be ensured, and the axial pressure provided by the elastic piece 2 and the sum of static friction force between the test tube 4 and the installation cavity 11 are less than, thereby ensuring that the test tube 4 cannot jack up the compression piece 3 during operation, and preventing the test tube 4 from flying out from the installation cavity 11.

In the embodiment of the present utility model, the end of the test tube 4 refers to the end protruding from one end of the mounting chamber 11 when the test tube 4 is in the mounted state.

In one embodiment of the present utility model, as shown in fig. 1, 2 and 3, the pressing member 3 includes a first pressing plate 31, one end of the first pressing plate 31 is connected to the elastic member 2, and in the mounted state, the other end of the first pressing plate 31 abuts against the end of the test tube 4.

By way of example, the first pressing plate 31 is used as the pressing member 3, the first pressing plate 31 is connected with the elastic member 2, so that linkage can be generated between the first pressing plate 31 and the elastic member 2, when the first pressing plate 31 is pressed and moved towards the elastic member 2, the elastic member 2 is in a deformed state, and when the first pressing plate 31 is not pressed, the elastic force of the elastic member 2 can move towards the mounting cavity 11. When test tube 4 switches to the installation state from the separation state, test tube 4 and first pinch plate 31 butt and remove to installation cavity 11 along first pinch plate 31, and first pinch plate 31 receives after the extrusion of test tube 4 and removes towards elastic component 2, is not located on the travel path of test tube 4 for test tube 4 can be smooth insert in the installation cavity 11. When test tube 4 is in the installed state, test tube 4 no longer produces the extrusion effect to first pressure strip 31, and first pressure strip 31 removes towards installation cavity 11 under the effect of elastic component 2 for first pressure strip 31 and the tip butt of test tube 4 realize compressing tightly fixed action to test tube 4. When test tube 4 switches to the separation state from the installation state, test tube 4 to the direction that keeps away from installation cavity 11 remove and with first pinch plate 31 butt, first pinch plate 31 receives the extrusion of test tube 4 and removes towards elastic component 2 this moment for first pinch plate 31 is not located on the travel path of test tube 4, can be smooth take out test tube 4 from installation cavity 11.

In the embodiment of the present utility model, as shown in fig. 1, 2 and 3, the first pressing plate 31 is provided with a guide surface 32, and the guide surface 32 is gradually inclined downward in the direction from the first pressing plate 31 to the installation cavity 11.

Illustratively, when the first compacting plate 31 is provided with the guiding surface 32 inclined downward, and the test tube 4 is switched from the separated state to the mounted state, the test tube 4 abuts against the guiding surface 32 and moves along the guiding surface 32 toward the mounting cavity 11, and at this time, the inclined direction of the guiding surface 32 is the same as the moving direction of the test tube 4, so that the guiding effect can be performed on the test tube 4, and the test tube 4 can move better toward the mounting cavity 11.

In one embodiment of the present utility model, as shown in fig. 1, 2 and 3, the elastic member 2 includes an elastic plate 21, one end of the elastic plate 21 is connected to the fixing frame 1, the other end of the elastic plate 21 is connected to the compressing member 3, and a first included angle is formed between the elastic plate 21 and a wall surface of the fixing frame 1.

Illustratively, the fixing frame 1 and the compressing element 3 are connected through the elastic plate 21, and a first included angle is formed between the elastic plate 21 and the wall surface of the fixing frame 1, that is, the elastic plate 21 is not attached to the wall surface of the fixing frame 1, so that a deformation space is formed between the elastic plate 21 and the fixing frame 1, and further the compressing element 3 connected with the elastic plate 21 can move under the action of external force.

In one embodiment of the present utility model, as shown in fig. 1, 2 and 3, the pressing member 3 includes a second pressing plate 33, the first pressing plate 31 connects the second pressing plate 33 and the elastic plate 21, and in the mounted state, the second pressing plate 33 abuts against the end of the test tube 4, a second angle is formed between the first pressing plate 31 and the elastic plate 21, and an end of the second pressing plate 33 remote from the first pressing plate 31 abuts against the elastic plate 21.

The first pressing plate 31 and the second pressing plate 33 are connected at one end to form the pressing member 3, a second included angle is formed between the first pressing plate 31 and the elastic plate 21, and the other end of the second pressing plate 33 is connected with the elastic plate 21, so that the first pressing plate 31, the second pressing plate 33 and the elastic plate 21 jointly enclose a triangle structure, the structural stability of the pressing member 3 is improved, the first pressing plate 31 or the second pressing plate 33 is enabled to be stressed, the pressing member 3 formed by the first pressing plate 31 and the second pressing plate 33 is not deformed, the whole pressing member 3 moves, and the influence of the deformation of the pressing member 3 on the state switching of the test tube 4 can be prevented.

Specifically, when the test tube 4 is switched from the separated state to the mounted state, the test tube 4 abuts against the first pressing plate 31 and moves toward the mounting cavity 11 along the first pressing plate 31, and at this time, the first pressing plate 31 is pressed by the test tube 4 and moves toward the elastic plate 21, and the second pressing plate 33 moves toward the elastic plate 21, so that the elastic plate 21 deforms in a direction away from the mounting cavity 11. When the test tube 4 is in the installation state, the elasticity of the elastic plate 21 can enable the first pressing plate 31 and the second pressing plate 33 to move towards the test tube 4, so that the second pressing plate 33 is abutted with the end part of the test tube 4, and the test tube 4 is pressed and fixed. When vibration, centrifugation and other operations are performed, the test tube 4 will generate a force to the second compacting plate 33 far away from the installation cavity 11, but because the other end of the second compacting plate 33 is abutted with the elastic plate 21, a stable triangle structure is formed among the first compacting plate 31, the second compacting plate 33 and the elastic plate 21, the second compacting plate 33 will not turn outwards, and the elastic plate 21 will generate a force to the test tube 4 to the first compacting plate 31 and the second compacting plate 33, so that the second compacting plate 33 can stably compress and fix the end of the test tube 4.

In one embodiment of the present utility model, as shown in fig. 1, 2 and 3, the compressing assembly includes a mounting plate 5, the mounting plate 5 is fixedly mounted to the fixing frame 1, one end of the elastic plate 21 is detachably connected to the mounting plate 5, and the other end of the elastic plate 21 is connected to the compressing member 3.

Illustratively, the mounting plate 5 is fixedly mounted on the fixing frame 1, and then one end of the elastic plate 21 is detachably connected to the mounting plate 5 by means of clamping, screwing, or the like, and the other end of the elastic plate 21 is connected to the first pressing plate 31. In the use, can dismantle the elastic plate 21 and with the compressing tightly piece 3 that elastic plate 21 is connected from mounting panel 5 according to actual need, can replace the elastic plate 21 of different specifications and compress tightly piece 3 and install mounting panel 5 on, and then can adapt to test tube 4 and the different operation of different specifications.

In one embodiment of the present utility model, as shown in fig. 1, 2 and 3, the first compression plate 31, the second compression plate 33 and the elastic plate 21 are integrally formed.

Illustratively, the first compression plate 31, the second compression plate 33 and the elastic plate 21 are integrally formed, so that the structure of the compression assembly is more stable, and the first compression plate 31, the second compression plate 33 and the elastic plate 21 do not need to be connected and assembled by taking time and manpower.

In one embodiment of the present utility model, as shown in fig. 4 and 5, the compressing assembly includes a mounting seat 6, the mounting seat 6 is fixedly mounted on the fixing frame 1, the mounting seat 6 is formed with a sliding cavity 61, the elastic member 2 is mounted in the sliding cavity 61, at least part of the compressing member 3 is located in the sliding cavity 61, and the compressing member 3 is movable relative to the sliding cavity 61, one end of the compressing member 3 abuts against the elastic member 2, and in the mounted state, the other end of the compressing member 3 abuts against the end of the test tube 4.

Illustratively, when the test tube 4 is switched from the separated state to the installation state, the test tube 4 abuts against the pressing member 3 and moves along the pressing member 3 toward the installation cavity 11, the pressing member 3 is pressed by the test tube 4 and then moves along the sliding cavity 61 toward the elastic member 2, at this time, the elastic member 2 is deformed, and the pressing member 3 is not located on the moving path of the test tube 4, so that the test tube 4 can be smoothly inserted into the installation cavity 11. When test tube 4 is in the installed state, test tube 4 no longer produces the extrusion effect to compressing tightly piece 3, compresses tightly piece 3 and removes towards installation cavity 11 under the effect of elastic component 2 for compressing tightly piece 3 and the tip butt of test tube 4, compressing tightly piece 3 keeps stable under the effect of elastic component 2 this moment, realizes compressing tightly fixed action to test tube 4. When test tube 4 switches to the separation state from the installation state, test tube 4 to the direction of keeping away from installation cavity 11 remove and with compress tightly piece 3 butt, compress tightly 3 receive the extrusion of test tube 4 and remove along sliding chamber 61 toward elastic component 2 this moment for compress tightly 3 not be located on test tube 4's the travel path, and then can be smooth take out test tube 4 from installation cavity 11.

In an embodiment of the utility model, as shown in fig. 4 and 5, the elastic member 2 is, for example, a spring.

In the embodiment of the present utility model, as shown in fig. 4 and 5, the pressing member 3 is, for example, a positioning bead 34. It should be appreciated that the resilient member 2 may be of any other suitable construction.

In the embodiment of the present utility model, one end of the elastic member 2 is abutted against the bottom of the sliding chamber 61, or one end of the elastic member 2 is fixedly connected to the inner wall surface of the sliding chamber 61, so that one end of the elastic member 2 is held stationary in the sliding chamber 61. It will be appreciated that the resilient member 2 may be held stationary at one end within the sliding chamber 61 by any other suitable means of attachment.

In one embodiment of the utility model, as shown in fig. 1 and 4, the test tube holder comprises at least two compression assemblies, the compression members 3 of which in the mounted state are each in abutment with an end of the test tube 4.

Illustratively, at least two compressing assemblies are arranged around each mounting cavity 11, so that the test tube 4 mounted in the mounting cavity 11 is simultaneously compressed and fixed by the at least two compressing assemblies, the test tube 4 can be more stably positioned in the mounting cavity 11, and the test tube 4 is prevented from being separated from the mounting cavity 11 during operations such as oscillation and centrifugation.

According to an embodiment of the second aspect of the present utility model, a sample sampling device includes a device body and the test tube fixing base, and the test tube fixing base is mounted on the device body.

According to the sample sampling device provided by the embodiment of the utility model, the test tube fixing seat is arranged, so that the test tube 4 can be directly inserted downwards or pulled upwards, the operation of inserting and taking out the test tube 4 can be realized, the insertion and taking out of the test tube 4 can be realized only by one action, the operation is simple, the time can be effectively saved, the efficiency is improved, the operation of inserting and taking out the test tube 4 can be performed by using automatic equipment such as a mechanical arm, and the automation degree of sample preparation analysis can be improved.

Finally, it should be noted that the above-mentioned embodiments are merely illustrative of the utility model, and not limiting. While the utility model has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions can be made to the technical solutions of the present utility model without departing from the spirit and scope of the technical solutions of the present utility model, and it is intended to be covered by the scope of the claims of the present utility model.

Claims

1. A test tube holder, comprising:

2. The test tube holder according to claim 1, wherein the pressing member includes a first pressing plate, one end of the first pressing plate is connected to the elastic member, and in the mounted state, the other end of the first pressing plate abuts against an end portion of the test tube.

3. The cuvette holder according to claim 2, wherein the first compacting plate is provided with a guiding surface which gradually slopes downwards in the direction from the first compacting plate to the mounting cavity.

4. The test tube fixing base according to claim 2, wherein the elastic member comprises an elastic plate, one end of the elastic plate is connected with the fixing frame, the other end of the elastic plate is connected with the pressing member, and a first included angle is formed between the elastic plate and the wall surface of the fixing frame.

5. The test tube holder of claim 4, wherein the compression member comprises a second compression plate, the first compression plate is connected with the second compression plate and the elastic plate, in the mounted state, the second compression plate is abutted with the end of the test tube, a second included angle is formed between the first compression plate and the elastic plate, and one end of the second compression plate away from the first compression plate is abutted with the elastic plate.

6. The test tube holder of claim 4, wherein the compression assembly comprises a mounting plate fixedly mounted to the mount, one end of the elastic plate is detachably connected to the mounting plate, and the other end of the elastic plate is connected to the compression member.

7. The cuvette holder of any one of claims 4 to 6, wherein the first compression plate, the second compression plate, and the resilient plate are integrally formed.

8. The test tube holder according to claim 1, wherein the pressing assembly comprises a mounting seat fixedly mounted on the fixing frame, a sliding cavity is formed in the mounting seat, the elastic member is mounted in the sliding cavity, at least part of the pressing member is located in the sliding cavity and can move relative to the sliding cavity, one end of the pressing member abuts against the elastic member, and in the mounting state, the other end of the pressing member abuts against the end of the test tube.

9. The test tube holder according to any one of claims 1 to 6, wherein said test tube holder comprises at least two of said compression assemblies, said compression members of at least two of said compression assemblies each abutting an end of said test tube in said installed state.

10. A sample sampling device comprising a device body and a test tube holder according to any one of claims 1 to 9, said test tube holder being mounted to said device body.