Test tube support

Abstract

The utility model discloses a test tube support, which relates to the technical field of test equipment, and comprises a mounting seat, a test tube support and a test tube support, the clamping assembly is used for clamping a sample test tube placed on the bearing part, the clamping assembly comprises a plurality of clamping jaws, the clamping jaws are uniformly distributed around the bearing part, the clamping jaws are rotatably connected with the mounting seat, each clamping jaw is provided with a first position and a second position, the first position and the second position are arranged at an interval, the first position is provided with a clamping part, and the second position is provided with a second clamping part; the clamping part is located above the bearing part, and elastic telescopic pieces are arranged between the second positions of the multiple clamping jaws and the mounting base. The plurality of elastic telescopic pieces can enable the clamping parts of the plurality of clamping jaws to be close to each other and reach a first preset position, and the clamping parts can clamp a sample test tube placed on the bearing part. According to the technical scheme provided by the utility model, the problem that the test tube support cannot adapt to sample test tubes with different diameters can be solved.

Description

Technical Field

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

[0002] In a laboratory biochemistry, immunology, and urine analyzer assembly line, sample tubes need to be placed inside a tube holder and transported between various sample processing devices via tracks.

[0003] Existing test tube supports are not suitable for sample test tubes of different diameters. Utility Model Content

[0004] The main purpose of this invention is to propose a test tube support that solves the problem that test tube supports cannot adapt to sample test tubes of different diameters.

[0005] To achieve the above objectives, the test tube support proposed in this utility model includes:

[0006] The mounting base includes a receiving portion for placing sample tubes; and

[0007] A clamping assembly is used to clamp the sample tube placed on the receiving part. The clamping assembly includes multiple jaws that are evenly distributed around the receiving part. The jaws are rotatably connected to the mounting base. Each jaw has a first position and a second position, which are spaced apart. The first position has a clamping part located above the receiving part. Each of the second positions of the multiple jaws is provided with an elastic telescopic member between itself and the mounting base.

[0008] The plurality of elastic telescopic members enable the clamping portions of the plurality of grippers to tend to move closer to each other and to a first preset position, wherein the clamping portions are capable of clamping the sample tube placed on the receiving portion.

[0009] In one embodiment, the gripper is rotatably connected to the mounting base via a pin, and the axis of the pin is set at a preset angle to the height direction of the gripper.

[0010] In one embodiment, the mounting base includes a first base body and a second base body, and the axis of the pin is arranged perpendicular to the height direction of the gripper;

[0011] The mounting base is provided with a plurality of first mounting slots, and a plurality of grippers are respectively provided in the plurality of first mounting slots. The grippers are connected to the second base body through the pin.

[0012] In one embodiment, the first seat body is provided with an installation cavity, the second seat body is fixed in the installation cavity, and there is a gap between the outer side of the second seat body and the cavity wall of the installation cavity;

[0013] Multiple first mounting slots are formed in the second base body, and the receiving part is provided in the second base body.

[0014] In one embodiment, the pin is located between the first position and the second position;

[0015] The second position of the gripper has a protrusion on the side facing the cavity wall of the mounting cavity.

[0016] In one embodiment, the axis of the pin is arranged parallel to the height direction of the gripper, and a mounting portion extends outward from the second position of the gripper, through which the gripper is connected to the pin.

[0017] The mounting base has a mounting cavity, and a limiting rod is provided in the mounting cavity. The limiting rod is fixed to the mounting base, and the pin is disposed around the limiting rod in the mounting cavity and fixed to the mounting base.

[0018] In one embodiment, the mounting base includes a first base body and a cover, the cover being fixed to the first base body, the mounting cavity being disposed in the first base body, the receiving portion being disposed in the cover, and the cover having a notch for the clamping portion to pass through.

[0019] The limiting rod and the pin are fixed to the first seat and / or the seat cover.

[0020] In one embodiment, the clamping portion is provided with a guide surface;

[0021] The sample tube contacts the guide surface of the multiple grippers, and can push the grippers through the guide surface, so that the gripping parts of the multiple grippers tend to move away from each other and to a second preset position, while the grippers move within the outer periphery of the mounting base.

[0022] And / or, the receiving portion is configured as a groove structure;

[0023] And / or, the clamping part clamps the lower half of the sample tube.

[0024] In one embodiment, the elastic telescopic member is configured as a spring.

[0025] In one embodiment, both the mounting base and the gripper are provided with a second mounting groove for spring mounting.

[0026] The technical solution of this utility model adopts a rotatable connection between the gripper and the mounting base. At this time, the clamping part on the gripper can swing around the rotatable connection. At the same time, the clamping part is located above the receiving part. When corresponding to sample tubes of different diameters, the clamping part can swing around the connection to different positions. Multiple elastic telescopic members can make the clamping parts of multiple grippers tend to move closer to each other through the second position of the gripper. At this time, according to the sample tubes of different diameters, under the action of the elastic telescopic members, the clamping parts located at different positions can press against the outside of the sample tube, thereby achieving the purpose of multiple grippers clamping the sample tube. This allows the test tube support to clamp sample tubes of different diameters, thus solving the technical problems existing in the prior art. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 A schematic diagram of an embodiment of the sample tube and tube support provided by this utility model;

[0029] Figure 2 for Figure 1 Exploded view;

[0030] Figure 3 for Figure 1 The front view;

[0031] Figure 4 for Figure 3 Cross-sectional view along the AA direction;

[0032] Figure 5 A schematic diagram of another embodiment of the test tube support provided by this utility model;

[0033] Figure 6 for Figure 5 Exploded view;

[0034] Figure 7 for Figure 5 The front view;

[0035] Figure 8 for Figure 7 Cross-sectional view along the BB direction.

[0036] Explanation of icon numbers:

[0037] 100. Mounting base; 110. Receiving part; 120. First mounting groove; 130. First seat body; 140. Second seat body; 150. Seat cover; 160. Mounting cavity; 170. Limiting rod;

[0038] 200. Clamping assembly; 210. Gripper; 211. First position; 212. Second position; 213. Clamping part; 214. Guide surface; 215. Protrusion; 216. Mounting part; 220. Elastic telescopic component;

[0039] 300. Sample tube; 310. Label information;

[0040] 400, Pin;

[0041] 500. Second mounting slot.

[0042] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0044] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0045] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0046] In a laboratory biochemistry, immunology, and urine analyzer assembly line, sample tubes need to be placed inside a tube holder and transported between various sample processing devices via tracks.

[0047] Existing test tube supports are not suitable for sample test tubes of different diameters.

[0048] This utility model proposes a test tube support.

[0049] Please see Figure 1 , Figure 2 or Figure 5 , Figure 6 In one embodiment of the present invention, the test tube support includes: a mounting base 100 and a clamping component 200, wherein the clamping component 200 is disposed on the mounting base 100, the mounting base 100 is used for placing the sample test tube 300, and the mounting base 100 is capable of transporting the sample test tube 300 in the above-mentioned production line.

[0050] Furthermore, the mounting base 100 is provided with a receiving portion 110, wherein the receiving portion 110 is used for placing the sample tube 300. The clamping assembly 200 is used to clamp the sample tube 300 placed on the receiving part 110. The clamping assembly 200 includes a plurality of jaws 210, which are evenly distributed around the receiving part 110. The jaws 210 are rotatably connected to the mounting base 100. The jaws 210 have a first position 211 and a second position 212, which are spaced apart. The first position 211 has a clamping part 213, which is located above the receiving part 110. An elastic telescopic member 220 is provided between the second position 212 of the plurality of jaws 210 and the mounting base 100. That is, an elastic telescopic member 220 is provided between each jaw 210 and the mounting base 100. Further, in this embodiment, the first position 211 is set to the position near the top of the jaw 210, and the second position 212 is set to the position near the bottom of the jaw 210. However, this design is not limited to this. In some embodiments, the first position 211 is set near the top of one side of the gripper 210, and the second position 212 is set near the middle of one side of the gripper 210. The plurality of elastic telescopic members 220 can cause the gripping portions 213 of the plurality of grippers 210 to tend towards each other and reach a first preset position. It should be noted that in this embodiment, when the plurality of gripping portions 213 tend towards each other and reach the first preset position, there is a certain distance between the plurality of gripping portions 213. In some embodiments, when the plurality of gripping portions 213 tend towards each other and reach the first preset position, the plurality of gripping portions 213 can abut against each other.

[0051] The clamping part 213 can clamp the sample tube 300 placed on the receiving part 110. It can be understood that by using the clamp 210 to rotately connect with the mounting base 100, the clamping part 213 on the clamp 210 can swing around the rotating connection. At the same time, the clamping part 213 is located above the receiving part 110. When corresponding to sample tubes 300 of different diameters, the clamping part 213 can swing around the connection to different positions. Multiple elastic telescopic members 220 can make the clamping parts 213 of multiple clamps 210 tend to move closer to each other through the second position 212 of the clamp 210. At this time, according to the sample tubes 300 of different diameters, under the action of the elastic telescopic members 220, the clamping parts 213 located at different positions can press against the outside of the sample tube 300, thereby achieving the purpose of multiple clamps 210 clamping the sample tube 300, and thus enabling the test tube support to clamp sample tubes 300 of different diameters, thereby solving the technical problems existing in the prior art.

[0052] Furthermore, in some embodiments, the elastic telescopic member 220 described above may have the following structure: the elastic telescopic member 220 may be configured as a spring, tension spring, etc.

[0053] When the elastic telescopic member 220 is configured as a spring, the spring can push the second position 212 of the gripper 210 with elastic force, causing the gripper 210 to rotate around its own rotational connection with the mounting base 100, thereby achieving a tendency for the first positions 211 of the multiple grippers 210 to move closer to each other.

[0054] Furthermore, when the elastic telescopic member 220 is configured as a spring, in some embodiments, the spring's position is different depending on the distribution of the first position 211, the second position 212, and the rotational connection between the gripper 210 and the mounting base 100. For example, when the rotational connection between the gripper 210 and the mounting base 100 is located between the first position 211 and the second position 212, the spring pushes against the second position 212 of the gripper 210, and the gripper 210 acts as a lever, with the rotational connection between the gripper 210 and the mounting base 100 acting as a lever point, thereby achieving a tendency for the first positions 211 of the multiple grippers 210 to approach each other.

[0055] Furthermore, when the elastic telescopic member 220 is configured as a spring, in some embodiments, when the first position 211, the second position 212, the gripper 210, and the rotatable connection point of the mounting base 100 are arranged sequentially, that is, the second position 212 is located between the first position 211 and the rotatable connection point, the spring pushes against the second position 212, allowing the gripper 210 to swing around the rotatable connection point, thereby achieving a tendency for the first positions 211 of the multiple grippers 210 to move closer to each other. The above example is only described using a spring as an example. If the spring is replaced with a tension spring, the installation position of the tension spring needs to be adjusted accordingly.

[0056] In one embodiment, the rotatable connection between the gripper 210 and the mounting base 100 can be structured as follows: the gripper 210 is rotatably connected to the mounting base 100 via a pin 400, and the axis of the pin 400 is set at a preset angle to the height direction of the gripper 210, wherein the axis of the pin 400 and the height direction of the gripper 210 can be set at 90 degrees or 180 degrees.

[0057] In one embodiment, reference Figures 2 to 4 The mounting base 100 includes a first base body 130 and a second base body 140. The axis of the pin 400 is perpendicular to the height direction of the gripper 210, that is, the axis of the pin 400 is set at a 90-degree angle to the height direction of the gripper 210. The mounting base 100 has multiple first mounting slots 120, and the multiple grippers 210 are correspondingly disposed in the multiple first mounting slots 120. The grippers 210 are connected to the second base body 140 via the pin 400. In some embodiments, the positions of the first position 211, the second position 212, and the pin 400 can be arranged sequentially. In this embodiment, the pin 400 is positioned between the first position 211 and the second position 212.

[0058] In one embodiment, reference Figure 2 , Figure 4 The mounting base 100 can adopt the following structure: a mounting cavity 160 is provided in the first base body 130, and the second base body 140 is fixed in the mounting cavity 160. There is a gap between the outer side of the second base body 140 and the cavity wall of the mounting cavity 160. A plurality of first mounting grooves 120 are formed in the second base body 140, and the receiving part 110 is provided in the second base body 140. It should be noted that the first mounting grooves 120 are formed in the second base body 140. At this time, the gripper 210 is rotatably connected to the second base body 140 through the pin 400, the receiving part 110 is provided in the second base body 140, and the plurality of grippers 210 are arranged around the second base body 140. Furthermore, in some embodiments, the positions of the first position 211, the second position 212, and the pin 400 are arranged sequentially, and when the elastic telescopic member 220 is selected as a spring, the spring is located between the second gripper 210 and the cavity wall of the mounting cavity 160. The spring pushes against the second position 212, causing the gripper 210 to rotate around the pin 400, thereby realizing that multiple grippers 210 tend to approach each other and reach the first preset position, wherein the first preset position can be the groove wall of the first mounting groove 120.

[0059] In one embodiment, reference Figure 4The pin 400 is located between the first position 211 and the second position 212. When the elastic telescopic member 220 selects a spring, the spring is located between the gripper 210 and the first mounting groove 120. The spring enables the second position 212 of the gripper 210 to have a tendency to move toward the cavity wall of the mounting cavity 160. To facilitate the insertion of the sample tube 300 into the test tube support, the second position 212 of the gripper 210 has a protrusion 215 on the side facing the cavity wall of the mounting cavity 160. Under the action of the protrusion 215, there is a certain gap between the second position 212 of the gripper 210 and the cavity wall of the mounting cavity 160. Since the pin 400 is located between the first position 211 and the second position 212, the gripper 210 can act as a lever, and the pin 400 acts as a lever point. Under the action of this gap, the second position 212 cannot be tightly attached to the cavity wall of the mounting cavity 160. At this time, there is a certain distance between the first positions 211 of the multiple grippers 210, so that there is a certain distance between the clamping parts 213 of the multiple grippers 210. Specifically, when the test tube support is not in use, there is a certain distance between the clamping parts 213 of the multiple grippers 210. Under the action of this distance, it is convenient for the sample tube 300 to be inserted into the test tube support.

[0060] In one embodiment, reference Figures 5 to 8 The axis of the pin 400 is parallel to the height direction of the gripper 210. A mounting portion 216 extends outward from the second position 212 of the gripper 210, and the gripper 210 is connected to the pin 400 through the mounting portion 216. That is, the axis of the pin 400 forms a 180-degree angle with the height direction of the gripper 210. In some embodiments, the pin 400 may be positioned between the first position 211 and the second position 212.

[0061] Further, refer to Figure 8 The mounting base 100 is provided with a mounting cavity 160, and a limiting rod 170 is provided in the mounting cavity 160. The limiting rod 170 is fixed to the mounting base 100, and the pin 400 is disposed around the limiting rod 170 in the mounting cavity 160 and fixed to the mounting base 100. Further, in this embodiment, the limiting rod 170 can be a hollow rod. It should be noted that when the elastic telescopic member 220 is configured as a spring, the spring is disposed between the cavity wall of the mounting cavity 160 and the gripper 210. At this time, the spring pushes against the gripper 210, and the gripper 210 swings around the pin 400 and moves closer to the limiting rod 170. Multiple grippers 210 move closer to the limiting rod 170 under the action of multiple springs, so that the multiple clamping parts 213 on the multiple grippers 210 tend to move closer to each other. It should be noted that in this embodiment, the receiving part 110 and the limiting rod 170 are arranged vertically in correspondence.

[0062] In one embodiment, reference Figure 6 , Figure 7 The mounting base 100 includes a first base body 130 and a base cover 150. The base cover 150 is fixed to the first base body 130, the mounting cavity 160 is disposed in the first base body 130, and the receiving portion 110 is disposed in the base cover 150. The base cover 150 has a notch for the clamping portion 213 to pass through. It should be noted that the mounting portion 216 is located below the base cover 150, and the receiving portion 110 is disposed in the base cover 150. Further, in one embodiment, the limiting rod 170 and the pin 400 are fixed to the first base body 130. In some embodiments, the limiting rod 170 and the pin 400 may be fixed to the base cover. In some embodiments, the limiting rod 170 and the pin 400 can be fixed to the first base 130 and the cover. When the limiting rod 170 and the pin 400 are fixed to the first base 130 and the cover, the first base 130 and the cover are provided with connecting grooves of different specifications corresponding to the pin 400. That is, the limiting rod 170 and the pin 400 can be inserted into the corresponding connecting grooves. In some embodiments (see...) Figure 6 The limiting rod 170 can have two sections, which are inserted together. One section of the limiting rod 160 is fixed to the seat cover 150, and the other end is fixed to the mounting cavity 160. At the same time, for multiple pins 400, they can also be partially fixed to the seat cover 150 and the other part fixed to the mounting cavity 160.

[0063] In one embodiment, reference Figure 2 and Figure 6The clamping part 213 is provided with a guide surface 214. The sample tube 300 contacts the guide surface 214 of the plurality of clamps 210, and can push the clamps 210 through the guide surface 214, so that the clamping parts 213 of the plurality of clamps 210 tend to move away from each other and to a second preset position. It can be understood that during the insertion of the sample tube 300 into the test tube support, it first contacts the guide surface 214 on the plurality of clamping parts 213. With further insertion, the test tube support can slide on the guide surface 214. The force of the sample tube 300 acting on the guide surface 214 can push the clamping parts 213, so that the plurality of clamping parts 213 tend to move away from each other and to a second preset position. It should be noted that the second preset position of the clamping part 213 is different depending on the diameter of the sample tube 300. At the same time, the guide surface 214 facilitates the insertion of the sample tube 300 into the sample support. It should be noted that, in order to reduce the impact on the movement of the test tube support on the production line when the grippers 210 move away from each other to the second preset position, the grippers 210 move within the outer periphery of the mounting base 100. That is, the maximum distance the grippers 210 move away from each other will not be outside the circumferential range formed by the outer side of the mounting base 100. Furthermore, in some embodiments, when the mounting base 100 is provided with a mounting cavity 160, the maximum distance the grippers 210 move away from each other will not be outside the circumferential range formed by the cavity wall of the mounting cavity 160.

[0064] In one embodiment, reference Figure 2 , Figure 4 When the second position 212 is provided with a protrusion 215, when the test tube support is not in use, there is a certain distance between the clamping parts 213 of the multiple claws 210. Under the action of this distance, it is convenient for the sample test tube 300 to be inserted into the test tube support. At the same time, it is convenient for the test tube body to contact the guide surface 214 on the clamping part 213, so that the sample test tube 300 can push against the clamping part 213 through the guide surface 214, and the clamping parts 213 of the multiple claws 210 can move away from each other, further facilitating the insertion of the sample test tube 300 into the test tube support.

[0065] In one embodiment, reference Figure 2 The receiving part 110 is configured as a groove structure. Further, the groove structure is configured as a circular groove or a conical groove. Under the action of the groove structure, it can guide and position the bottom of the sample tube 300, reducing the possibility of the sample tube 300 tilting. It should be noted that when the center point of the groove structure is located at the center point of the mounting base 100, the groove structure can also ensure that the sample tube 300 and the mounting base 100 are concentrically positioned.

[0066] In one embodiment, reference Figure 1 , Figure 3The clamping part 213 clamps the lower half of the sample tube 300, so that the upper part of the sample tube 300 is not blocked by the gripper 210. At this time, the label information 310 of the sample tube 300 can be attached to the upper half of the sample tube 300. The gripper 210 will not block the label information 310 on the sample tube 300, making it convenient for the label information 310 on the sample tube 300 to be read.

[0067] In one embodiment, the elastic telescopic member 220 is configured as a spring. By using a spring, the space required when the spring is compressed is reduced. In other words, compared with a tension spring, the space required by the spring in this embodiment is reduced, and the structure of the test tube support can be further reduced, making the structure of the test tube support more compact. This allows the track for the movement of the test tube support on the production line and the production line itself to be more compact, reducing the area occupied.

[0068] In one embodiment, both the mounting base 100 and the gripper 210 are provided with a second mounting groove 500 for mounting the spring. Further, in this embodiment, the second mounting groove 500 can be a groove formed on the mounting base 100 or the gripper 210, or it can be a groove structure formed by multiple plate-like structures. Under the action of the second mounting groove 500, it can play a limiting role at the connection between the spring and the mounting base 100 and the gripper 210, reducing the possibility of the spring separating from the mounting base 100 and the gripper 210.

[0069] Furthermore, depending on the different structures of the mounting base 100, the position of the second mounting groove 500 on the mounting base 100 is also different. When the elastic telescopic member 220 is configured as a spring, and the mounting base 100 includes a first seat 130 and a second seat 140, the second mounting groove 500 is formed in the second seat 140 (see...). Figure 4 When the mounting base 100 includes a first base body 130 and a base cover 150, the second mounting groove 500 is located in the first base body 130 (see...). Figure 6 At this point, the second mounting slot 500 is a slot structure formed by multiple plate-like structures (see...). Figure 6 ).

[0070] It should be noted that a second mounting groove 500 is provided on both the mounting base 100 and the clamp 210, which makes the test tube support structure of this application more compact while ensuring the effective installation length of the spring and avoiding the situation where the spring is too short and the elastic force is insufficient.

[0071] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A test tube holder, characterized in that, The utility model relates to a sample test tube clamping device, including: A mounting seat (100) is provided with a receiving part (110), and the receiving part (110) is used for placing a sample test tube (300); And A clamping assembly (200) is used for clamping the sample test tube (300) placed on the receiving part (110), and the clamping assembly (200) includes a plurality of clamping claws (210), a plurality of the clamping claws (210) are uniformly distributed around the receiving part (110), the clamping claw (210) is rotatably connected with the mounting seat (100), the clamping claw (210) is provided with a first position (211) and a second position (212), the first position (211) and the second position (212) are arranged at intervals, the first position (211) is provided with a clamping part (213), and the clamping part (213) is located above the receiving part (110); a plurality of elastic expansion pieces (220) are arranged between the second position (212) of a plurality of the clamping claws (210) and the mounting seat (100); A plurality of the elastic expansion pieces (220) can make the clamping part (213) of a plurality of the clamping claws (210) tend to approach each other and reach a first preset position, and the clamping part (213) can clamp the sample test tube (300) placed on the receiving part (110).

2. The test tube holder of claim 1, wherein The clamping claw (210) is rotatably connected with the mounting seat (100) through a pin shaft (400), and the axis of the pin shaft (400) is arranged at a preset angle with the height direction of the clamping claw (210).

3. The test tube support of claim 2 wherein, The mounting seat (100) includes a first seat body (130) and a second seat body (140), and the axis of the pin shaft (400) is arranged perpendicular to the height direction of the clamping claw (210). The mounting seat (100) is provided with a plurality of first mounting grooves (120), a plurality of the clamping claws (210) are correspondingly arranged in the plurality of first mounting grooves (120), and the clamping claw (210) is connected with the second seat body (140) through the pin shaft (400).

4. The test tube support of claim 3 wherein, The first seat body (130) is provided with a mounting cavity (160), the second seat body (140) is fixedly arranged in the mounting cavity (160), and a gap exists between the outer side of the second seat body (140) and the cavity wall of the mounting cavity (160). A plurality of the first mounting grooves (120) are arranged in the second seat body (140), and the receiving part (110) is arranged in the second seat body (140).

5. The test tube support of claim 4 wherein, The pin shaft (400) is arranged between the first position (211) and the second position (212). The second position (212) of the clamping claw (210) is provided with a protrusion (215) on the side facing the cavity wall of the mounting cavity (160).

6. The test tube support of claim 2 wherein, The axis of the pin shaft (400) is arranged parallel to the height direction of the clamping claw (210), the second position (212) of the clamping claw (210) outwardly extends an installation part (216), and the clamping claw (210) is connected with the pin shaft (400) through the installation part (216). The mounting seat (100) is provided with a mounting cavity (160), a limiting rod (170) is arranged in the mounting cavity (160), the limiting rod (170) is fixedly arranged on the mounting seat (100), and the pin shaft (400) is arranged in the mounting cavity (160) around the limiting rod (170) and is fixedly arranged on the mounting seat (100).

7. The test tube support of claim 6 wherein, The mounting seat (100) comprises a first seat body (130) and a seat cover (150), the seat cover (150) is fixedly arranged on the first seat body (130), the mounting cavity (160) is arranged on the first seat body (130), the receiving part (110) is arranged on the seat cover (150), and a gap is arranged on the seat cover (150) for the clamping part (213) to pass through. The limiting rod (170) and the pin shaft (400) are fixedly arranged on the first seat body (130) and / or the seat cover (150).

8. A test tube holder according to any one of claims 1 to 7, c h a r a c t e r i z e d in that The clamping part (213) is provided with a guide surface (214). The sample test tube (300) is in contact with the guide surface (214) of the plurality of clamping claws (210), the clamping claws (210) can be pushed by the guide surface (214), the clamping parts (213) of the plurality of clamping claws (210) are in a mutual far-away trend and reach a second preset position, and the clamping claws (210) are movable in the outer circumferential side of the mounting seat (100); And / or, the receiving part (110) is configured as a groove structure; And / or, the clamping part (213) clamps the lower half of the sample test tube (300).

9. A test tube holder according to any one of claims 1 to 7, c h a r a c t e r i z e d in that The elastic telescopic member (220) is configured as a spring.

10. The test tube support of claim 9, wherein, The mounting seat (100) and the clamping claw (210) are both provided with a second mounting groove (500) for mounting a spring. The mounting seat (100) and the clamping claw (210) are both provided with a second mounting groove (500) for mounting a spring.

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