CN218808800U - Test tube installation mechanism - Google Patents

Abstract

The utility model provides a test tube installation mechanism, including slide rail guiding axle and appearance pipe support, the slide rail guiding axle constitutes the kinematic pair with appearance pipe support, and appearance pipe support can slide along slide rail guiding axle direction, is equipped with the sample position that is used for fixed test tube on the appearance pipe support, and the slide rail guiding axle is equipped with two, and two slide rail guiding axles are parallel to each other, and all install on the mount table. The utility model provides a test tube mounting mechanism, which can disassemble the sample tube rack, and is convenient for the rapid putting in and taking out of the whole row of sample tube racks; the handle on the sample tube rack provides a holding position during movement, and meanwhile, an operator does not need to distinguish the mounting directions of the test tube rack during mounting, so that the mounting efficiency is improved; the appearance pipe support is after the installation is accomplished, and the mount table can drive the appearance pipe support and come to the region of uncapping and carry out uncapping, and at the in-process of uncapping of execution, appearance pipe support can't take out, and is very safe, and after uncapping, the mount table can drive the appearance pipe support and reset, and the appearance pipe support resumes to the state that can whole row take out again, and is very convenient.

Description

Test tube installation mechanism

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a mechanism that is used for installing the test tube in equipment of uncapping.

Background

The cap of the traditional test tube with the cap needs to be opened before pipetting, for example, the cap of a vacuum blood sampling tube is difficult to open, an operator needs to unscrew the caps of the vacuum blood sampling tubes one by one with fingers before pipetting, and because the amount of the vacuum blood sampling tubes needing to be opened before pipetting is large, only one tube can be opened by twisting with the fingers once, the time is long, the fingers can be painful, and the efficiency of opening the cap can be obviously reduced; in addition, in the process of manually opening the cover of the vacuum blood collection tube, the possibility of shaking and tube wall breakage exists, so that a sample can be spilled, the sample can be cross-contaminated and an operator can be infected, or the opening of the test tube is broken to scratch the operator, or the blood sample can be splashed and aerosol can be generated due to the sudden release of local negative pressure in the tube in the process of opening the cover, so that the operator can be infected by bacteria and viruses; furthermore, before uncapping, operating personnel need take off vacuum test tube from collecting pipe rack, after the completion is uncapped, operating personnel will insert vacuum test tube again on the collecting pipe rack, because collecting pipe rack is not fixed, this condition that leads to collecting pipe rack to empty probably can appear in the operation process, causes the inspection accident.

Some cap openers are already available in the market at present, for example, disc type single-opening machines for opening the caps of the vacuum blood collection tubes are developed in the United states and Korea, discs run and are opened one by one, namely 1 is opened in each opening action, the cap opening efficiency of the cap opener is low, and few hospitals use the cap opener in China; for example, a lid opener in a pipeline system, for example, a complete laboratory automation system (TLA) such as Beckman, performs management and processing before analysis of a sample, and the system includes an automatic lid opening function, but TLA is only applicable to a large hospital where specimens are collected, and is not high in domestic usage due to high cost.

Disclosure of Invention

The utility model aims at the above-mentioned technical problem, provide a technical problem that how to carry out whole row installation, take out fast to the appearance pipe rack in the equipment of uncapping at the test tube for solution.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the utility model provides a test tube installation mechanism, includes slide rail guiding axle and appearance pipe support, and the slide rail guiding axle constitutes the kinematic pair with appearance pipe support, and appearance pipe support can slide along slide rail guiding axle direction, is equipped with the sample position that is used for fixed test tube on the appearance pipe support.

Further, the slide rail guiding axle is equipped with two, and two slide rail guiding axles are parallel to each other, and all install on the mount table.

Furthermore, two slide rail guiding shafts protrude in opposite directions, two inwards-recessed sliding grooves are formed in the sample tube frame correspondingly, and protruding parts on the slide rail guiding shafts are matched with the recessed sliding grooves in the sample tube frame.

Further, still include limit baffle, when appearance pipe rack one side and limit baffle butt, represent appearance pipe rack installation and target in place.

Furthermore, a handle is arranged on one side of the sample tube rack, and when the sample tube rack is installed in place, the handle is positioned on one side, away from the limiting baffle, of the sample tube rack.

Furthermore, the mount table is made of POM and can play a role in moving and lubricating.

Further, the mounting table is movable.

Further, the moving direction of the mounting table is perpendicular to the moving direction of the sample tube rack.

Further, the mount table is arranged in the mounting groove, and a guide shaft penetrating through the mount table is arranged in the mounting groove.

Further, a spring is arranged between the guide shaft and the inner wall of one side of the installation groove.

The utility model has the advantages that: the utility model provides a test tube mounting mechanism, which can disassemble the sample tube rack, and is convenient for the rapid putting in and taking out of the whole row of sample tube racks; the handle on the sample tube rack provides a holding position during movement, and meanwhile, an operator does not need to distinguish the mounting directions of the test tube rack during mounting, so that the mounting efficiency is improved; the appearance pipe support is in the installation completion back, and the mount table can drive the appearance pipe support and come the regional execution of uncapping and uncap, and at the execution in-process of uncapping, appearance pipe support can't take out, and is very safe, after uncapping, the mount table can drive the appearance pipe support and reset, and the appearance pipe support resumes to the state that can arrange the taking out again, and is very convenient.

Drawings

Fig. 1 is a schematic view of the overall structure of a test tube uncapping apparatus of the present invention;

FIG. 2 is a schematic structural view of the utility model when the test tube is fixed on the sample tube rack;

FIG. 3 is a schematic structural view of the test tube clamping mechanism of the present invention;

fig. 4 is a schematic view of a structure in which the friction member 11 is provided on the pressing plate;

FIG. 5 is a schematic view of a cuvette inserted into a sample site;

FIG. 6 is a schematic view of the test tube rack after being mounted on the mounting table;

FIG. 7 is a schematic view of the test rack as it is removed from the mounting station;

FIG. 8 is a cross-sectional view taken along the line A in FIG. 2;

FIG. 9 is a schematic view of a portion of the method of region B of FIG. 8;

fig. 10 is a schematic structural diagram of the test tube uncapping mechanism after the sample tube rack and the test tube are hidden.

Detailed Description

In the following description of the embodiments of the present invention, reference is made to the accompanying drawings, which are not intended to limit the invention to the particular embodiments disclosed, but rather to limit the invention in any manner, all features disclosed in the embodiments of the invention, or all steps in any method or process disclosed, except features and/or steps that are mutually exclusive.

Referring to the attached drawing 1, the utility model relates to a test tube equipment of uncapping, including test tube clamping mechanism, test tube mechanism of uncapping, test tube clamping mechanism is used for pressing from both sides the test tube tightly and makes the test tube firm, and after the test tube presss from both sides tightly, test tube mechanism of uncapping is again uncapped to the test tube. Specifically, test tube clamping mechanism includes sample pipe support 23, is equipped with the sample position 32 that is used for fixed test tube on the sample pipe support 23, and the test tube includes shaft 9 and lid 10, and during shaft 9 of test tube inserted sample position 32, lid 10 one end was exposed. Sample position 32 sets up and is equipped with hollow area 12, and hollow area 12 sets up in sample pipe support 23 side, can let sample pipe support 23's sample position 32 regional with the external world keep the intercommunication, and hollow area 12 is equipped with friction element 11, friction element 11 can with the test tube butt to the restriction test tube leaves sample position 32, realizes pressing from both sides tight of test tube. Test tube uncap mechanism is including uncapping structure 91, and uncap structure 91 can move, and uncap structure 91 lets pipe shaft 9 and lid 10 separation, the completion uncap through the lid 10 of motion butt test tube. The separation is considered to be that the cap 10 is opened, and not that the tube 9 and the cap 10 are completely separated from each other, because in some other embodiments, a plastic strip connected to the cap 10 may be provided on the tube 9, that is, the cap 10 of the test tube is in an opened state, and the tube 9 and the cap 10 are connected and not completely separated, but the test tube in the opened state is considered to be that the tube 9 and the cap 10 are separated.

Preferably, the hollow area 12 at the sample position 32 is elongated, and correspondingly, the friction element 11 is also elongated, the elongated structure is designed to mainly adapt to the strip-shaped structure of the test tube, and the elongated friction element 11 increases the contact area between the friction element 11 and the test tube, so that the test tube fixed in the sample position 32 is more stable. Further, the friction element 11 is arc-shaped on the side close to the sample tube rack 23, and the arc-shaped design can improve the contact area again.

Preferably, the friction element 11 may be an elongated rubber strip. The cost of rubber strip is lower, and the rubber strip has certain elasticity simultaneously, can protect the pipe shaft 9 of test tube not destroyed to a certain extent.

Preferably, the friction element 11 is movable, so that when an operator needs to put in or take out the test tube from the sample position 32, the friction element 11 leaves the hollow area 12, so as to be conveniently put in or taken out; when the operator has placed the test tube in the sample position 32, the friction element 11 can again enter the hollow area 12, clamping the test tube.

In this embodiment, the tube body 9 and the cap body 10 of the test tube are both cylindrical, and preferably, the cap opening structure 91 is arc-shaped. Further, uncap structure 91 is circular-arcly, and uncap structure 91's circular arc radius is greater than the radius of pipe shaft 9, is less than the circular arc radius of lid 10, and uncap structure 91's circular arc central point coincides with the circular arc central point of lid, and such design enables uncap structure 91 and avoids contacting with pipe shaft 9 in the motion process, reduces the resistance in the motion, but can not influence uncap structure 91 and lid 10 contact, does not influence the process of uncapping.

Preferably, at least two sample sites 32 are provided on the sample tube rack 23, all sample sites 32 being in the same row, and correspondingly, each sample site 32 corresponds to at least one hollow area 12, i.e., at least two hollow areas 12 are provided on the sample tube rack 23, and each hollow area 12 is provided with at least one friction element 11, i.e., at least two friction elements 11. The uncapping structure 91 also corresponds to the sample bits 32, i.e., at least two uncapping structures 91 are provided. Furthermore, all the friction elements 11 are fixed on the same pressure plate 8, so that all the friction elements 11 can move simultaneously, and all the test tubes on the sample tube rack 23 can be clamped or loosened simultaneously; all uncap structures 91 all locate on same piece of arm-tie 16 that uncaps, can realize like this that the single of test tube is uncapped in batches. Specifically, the pressurizing plate 8 is provided with mounting grooves 13 corresponding to the number of the hollow areas 12 and the positions of the hollow areas 12, the mounting grooves 13 are U-shaped and strip-shaped, and the friction elements 11 are mounted in the mounting grooves 13. In this embodiment, 32 sample sites 32 are provided on the sample rack 23, the interval between each sample site 32 is kept the same, a hollow area 12 is provided on the side surface of each sample site 32, and correspondingly, 32 friction elements 11 are provided on the pressure plate 8, the interval between each friction element 11 is kept the same, and the position of each friction element 11 corresponds to the position of the hollow area 12, and meanwhile, the lid opening pull plate 16 is provided with 32 lid opening structures 91, and the lid opening structures 91 correspond to the number and positions of the sample sites 32 one by one.

Preferably, the pressure plate 8 is connected to a horizontal movement mechanism, which can be manual or electric, and controls the clamping or loosening of the test tube. Further, the horizontal movement mechanism is connected to the pressurizing plate 8 through the connecting block 6, and the connecting block 6 is a bridge connected with the pressurizing plate 8 through the horizontal movement mechanism, so that the effect of eliminating assembly errors can be achieved, and the connection of easy movement can be guaranteed.

Preferably, the movement of the cap opening structure 91 may be an up-and-down linear movement or other paths, as long as the cap body 10 can be separated from the tube body 9. Adopt the mode of upper and lower linear motion in this embodiment, this kind of motion control is simple, and uncaps efficiently, and when uncapping structure 91 did not move, uncap structure 91 was located between sample pipe support 23 and the lid 10, and when uncapping structure 91 in upward movement process, uncap structure 91 and lid 10 butt because the shaft 10 is fixed by test tube clamping mechanism, and lid 10 is backed up by uncapping structure 91. In addition, because the uncapping structure 91 adopts the linear motion mode from top to bottom, this also makes, test tube uncapping mechanism can not only the single test tube lid of same height of opening simultaneously, can also the single test tube lid of not co-altitude, because in the motion stroke of uncapping structure 91, uncapping mechanism 91 can move to the co-altitude position, the co-altitude position also makes this structure can open the lid 10 of different test tubes, this has solved the problem that equipment can only open single co-model test tube lid among the prior art. In a way, the loading of the sample tube rack 23 with covers 10 of different heights makes the opening process easier, because the number of covers 10 that are simultaneously opened at a certain opening moment is reduced. Simultaneously, when being used for placing the not test tube of co-altitude on sample pipe support 23, the interval between adjacent sample position 32 can be set up a bit less, and the structure is compacter because there is not the lid 10 of adjacent test tube to the problem together, and this ability of installing the test tube on sample pipe support 23 also can be promoted to a certain extent. The utility model discloses the sample pipe rack 23 that adopts's interval between the adjacent sample position 32 is moderate for the test tube size of placing in the sample position 32 is unrestricted.

Preferably, in order to avoid scattering of the cap 10 after the cap is opened, the test tube cap opening device of the present invention further comprises a raceway 7, and the raceway 7 can be used for receiving the separated cap. Because be equipped with a plurality of sample positions 32 on the sample pipe support 23 and locate one row, sample pipe support 23 wholly is rectangular form, and is corresponding, and raceway 7 also is rectangular form, and raceway 7 and uncapping arm-tie 16 are located the separately level in sample pipe support 23's both sides respectively and arrange for the lid 10 homoenergetic that uncapping arm-tie 16 opened falls on raceway 7. Furthermore, the section of the raceway 7 is L-shaped, the break angle position of the raceway 7 is arc-shaped, the raceway 7 comprises a bottom baffle 71 and a side baffle 72, and the bottom baffle 71 and the side baffle 72 are connected through an arc section 70; the bottom baffle 71 is close to the sample tube rack 23, so that the separated cover 10 cannot fall out from a gap between the sample tube rack 23 and the bottom baffle 71, the bottom baffle 71 is connected with the arc section 70, one side of the bottom baffle 71 is inclined downwards, the cover 10 falling on the bottom baffle 71 can roll towards the arc section 70 along the position of the bottom baffle 71, and the side baffle 72 is used for blocking the cover 10 and preventing the cover 10 from jumping out from the raceway 7 at a high speed at the moment of separation.

Preferably, the raceway 7 has two ends of different heights, one higher side and one lower side, which helps the caps 10 on the raceway 7 to collect to one side and slide into the waste bin. Further, a baffle 73 is provided at the higher one of the two ends of the raceway 7.

Preferably, referring to fig. 1, the utility model discloses a test tube uncapping equipment still includes the cover body 74, and the cover body 74 can cover sample pipe support 23, raceway 7 place region for lid 10 must be unable departure in the in-process of uncapping, avoids appearing the lid 10 and flies up the condition of hitting the operator.

Preferably, the lid opening pulling plate 16 is connected with a vertical moving mechanism, similar to the horizontal moving mechanism, which can be manual or electric, and the opening of the test tube is controlled by the vertical moving mechanism. In the embodiment, the horizontal movement mechanism and the vertical movement mechanism both adopt quick toggle clamps, which are manually operated instruments, and the quick toggle clamps can play a role in clamping the test tubes and opening the cover body with small force, thereby being convenient for operators to manually operate equipment directly in the fume hood to open the covers of the test tubes in a row. Furthermore, the quick toggle clamp is provided with a nut for adjusting the tightness or the plate height, so that the adjustment can be conveniently carried out by an operator during the actual operation.

Preferably, in order to make the horizontal movement mechanism and the vertical movement mechanism move more stably, the pressurizing plate 8 and the lid opening pulling plate 16 are both provided with a movement guide structure, and the movement guide structure can be a set of kinematic pairs formed by matching a guide shaft sleeve with a guide shaft.

Preferably, in order to position the highest position of the movement of the lid-opening pulling plate 16, ensure the effective travel of the movement, and simultaneously buffer the inertia force to prevent the lid body 10 from flying off due to the excessive inertia force, the test tube lid-opening mechanism further comprises a positioning ring 14, and the positioning ring 14 can be mounted on the vertical guide shaft 18 and used for locking when moving to a limited position.

Preferably, the utility model relates to a sample pipe support 23 among test tube uncapping equipment is detachable, can make things convenient for putting into and taking out of sample pipe support 23 whole row like this, consequently still including the installation mechanism that is used for installing sample pipe support 23, refer to figure 10, installation mechanism includes mount table 22, be equipped with two slide rail guiding axles 29 on the mount table 22, two slide rail guiding axles 29 are parallel to each other, slide rail guiding axle 29 is outstanding in opposite directions, it corresponds with it, be equipped with two inside sunken spout 28 on the sample pipe support 23, the protruding portion on the slide rail guiding axle 29 pairs each other with sunken spout 28 on the sample pipe support 23, and protruding portion, spout 28 all are rectangular form. The two slide rail guide shafts 29 and the sample tube rack 23 form a kinematic pair, so that the sample tube rack 23 can slide in (put in) or slide out (take off) on the mounting table 22. Furthermore, in order to conveniently confirm whether the sample tube rack 23 is installed in place, the utility model discloses a test tube uncapping device is provided with a limit baffle 92, when one side of the sample tube rack 23 abuts against the limit baffle 92, the sample tube rack 23 is installed in place, and at this moment, all uncapping structures 91 on the uncapping pulling plate 16 correspond to the test tube positions on the sample tube rack 23 one by one; the mounting table 22 is made of POM, can play a role in moving and lubricating, and facilitates the sliding of the sample tube rack 23.

Preferably, a handle 93 is provided on one side of the sample tube rack 23, the handle 93 providing a gripping location for facilitating the loading or unloading of the sample tube rack 23 by an operator. Only one handle 93 is provided, and when the sample tube rack 23 is mounted in place, the handle 93 is located on the side of the sample tube rack 23 away from the limit stop 92. Because the hollow area 12 is located on one side of the sample tube rack 23, when the operator installs the sample tube rack 23 in a normal condition, the operator needs to distinguish the installation direction of the sample tube rack 23, one side of the hollow area 12 faces the friction element 11, and after the sample tube rack 23 is provided with the handle 93, the operator does not need to distinguish the installation direction when installing any more, and only needs to slide the side of the sample tube rack 23 without the handle 93 along the slide rail guide shaft 29.

When the sample tube rack 23 slides in along the slide rail guide shaft 29 and is installed, the vertical projection of the uncapping structure 91 and the vertical projection of the cover body 10 cannot coincide, and the test tube uncapping mechanism in the embodiment adopts a linear motion track from top to bottom, that is, if the uncapping structure 91 is started to uncap, the uncapping structure 91 cannot contact with the cover body 10, and the uncapping operation cannot be completed. Preferably, the mounting table 22 is movable, and after the sample rack 23 is mounted on the mounting table 22, the vertical projection of the lid opening structure 91 is overlapped with the vertical projection of the lid body 10 by controlling the movement of the mounting table 22, so that the lid opening operation can be performed. Specifically, the mounting table 22 is disposed in the mounting groove 94, and a guide shaft 95 penetrating the mounting table 22 is disposed in the mounting groove 94, so that the mounting table 22 can move along the guide shaft.

Preferably, the movement direction of the mounting table 22 is perpendicular to the movement direction of the sample holder 23. That is, in the present embodiment, the sample tube rack 23 moves along the slide rail guide shaft 29 first, so that the sample tube rack 23 is mounted on the mounting table 22, and the mounting table 22 moves along the guide shaft 95 again, so that the test tubes mounted on the sample tube rack 23 correspond to the uncapping structures 91 on the uncapping pull plate 16 one-to-one.

Preferably, the movement of the mounting table 22 may be self-driven or driven by movement of other mechanisms. Obviously, the movement of the mounting table 22 can be carried out by other mechanisms to solve the manufacturing cost and the use cost of the device. In this embodiment, the movement of the mounting table 22 is driven by a horizontal movement mechanism, the horizontal movement mechanism first drives the pressing plate 8 to move, during the movement of the pressing plate 8, the friction element 11 on the pressing plate will abut against the test tube in the sample tube holder 23, at this time, the horizontal movement mechanism will continue to move, and the sample tube holder 23 and the mounting table 22 connected thereto will continue to move along the original direction (i.e. the direction of the guide shaft 95) until the position where the cover opening can be performed is reached (the vertical projection of the cover opening structure 91 is overlapped with the vertical projection of the cover body 10). In addition, when the mode that the mounting table 22 is driven by the horizontal movement mechanism is adopted, the raceway 7 can be mounted on the pressurizing plate 8, because this enables the raceway 7 to be kept in a state of being close to the sample tube holder 23 during operation, and facilitates the raceway 7 to follow the lid 10 after the lid is opened at any time. Of course, the raceway 7 can be provided directly on the mounting table 22, and constantly moves in accordance with the movement of the sample rack 23.

In order to avoid the sample tube support 23 excessive motion along with the motion process of mount table 22, need move spacingly to mount table 22 or sample tube support 23, preferably, sample tube support installation mechanism still includes locating plate 17, locating plate 17 can with sample tube support 23 butt, locating plate 17 can play the spacing effect of motion, simultaneously at the tight in-process of above-mentioned test tube clamp, locating plate 17, pressboard 8 is located the both sides of test tube respectively, provide the clamp force through both sides, realize the better clamp of test tube. Further, the locating plate 17 can carry out the fine setting in the horizontal direction, and this helps operating personnel to adjust the overlap ratio of uncapping structure 91 and the vertical projection of lid 10 when uncapping according to actual conditions, uncapping that can be better.

Preferably, referring to fig. 10, a spring 20 is provided between the guide shaft 95 and an inner wall of one side of the mounting groove 94, and the spring 20 makes the movement of the sample rack 23 more stable when contacting the positioning plate 17. Meanwhile, when the sample tube rack 23 needs to be taken out, the mounting table 22 can be pushed to reset.

In order to facilitate the understanding of the technical solutions of the present invention by those skilled in the art, the following discussion of the usage method is performed in conjunction with the apparatus provided in the present embodiment:

1. 32 vacuum blood collection tubes of different heights to be inspected are taken out and loaded into the sample position 32 of the sample tube rack 23, and the sample tube rack 23 is inserted between the two slide rail guide shafts 29 on the mounting table 22 until the sample tube rack 23 abuts against the limit stop 92.

2. The horizontally mounted quick toggle clamp is operated by both hands to move the rack 23 with the mounting table 22 until the alignment plate 17 and the pressure plate 8 effect clamping of the test tube.

3. The uncapping structure 91 completes uncapping of the lid 10 by operating the vertically mounted quick toggle clamps with both hands, and the lid 10 falls in the inclined raceway 7 and slides into the waste box.

4. The quick toggle clamp of both hands reset horizontal installation, mount table 22 and sample tube rack 23 reset under the effect of spring 20, and the test tube is no longer pressed from both sides tightly this moment, and operating personnel takes out special sample tube rack 23 after uncapping.

5. The quick toggle clamp which is vertically arranged by resetting both hands drives the test tube uncapping component to reset, and a cycle is completed.

In order to prove that the device provided by the utility model has better performance of uncapping, the technical personnel of the applicant have also carried out the following experiment:

1. experiment 1: putting phi 13 multiplied by 75mm vacuum blood sampling tubes into a whole row of sample tube frames 23, wherein water exists in the blood sampling tubes, simulating samples, and opening the covers at the same time;

2. experiment 2: putting phi 13 multiplied by 1OOmm vacuum blood sampling tubes into a whole row of sample tube frames 23, wherein water exists in the blood sampling tubes, simulating samples, and opening the covers at the same time;

3. experiment 3: putting phi 13 multiplied by 100mm and phi 13 multiplied by 75mm vacuum blood sampling tubes into a whole row of sample tube frames 23, wherein water exists in the blood sampling tubes, simulating samples, and opening the covers at the same time;

the experimental results are as follows:

after the experiment of various conditions fully verifies, the utility model provides a pair of test tube equipment of uncapping can satisfy not co-altitude test tube, and different compound mode is packed into a kind pipe support 23, has the condition such as appearance in the simulation pipe, and the success rate of uncapping 100%, there is not liquid to spill, the utility model discloses can satisfy the relevant demand of uncapping.

The above, only be the embodiment of utility model, but utility model's scope of protection is not limited to this, and any change or the replacement that do not think through creative work all should be covered within utility model's scope of protection, for example the utility model discloses a test tube equipment of uncapping can be used for opening the lid of similar shape, different diameters, different materials, product of co-altitude not. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims (10)

1. The utility model provides a test tube installation mechanism, its characterized in that includes slide rail guiding axle and appearance pipe support, and the slide rail guiding axle constitutes the kinematic pair with appearance pipe support, and appearance pipe support can slide along slide rail guiding axle direction, is equipped with the sample position that is used for fixed test tube on the appearance pipe support.

2. The test tube mounting mechanism of claim 1, wherein there are two slide rail guide shafts, and the two slide rail guide shafts are parallel to each other and are mounted on the mounting table.

3. The test tube mounting mechanism according to claim 1, wherein the two slide rail guide shafts protrude toward each other, and the sample tube holder is provided with two inwardly recessed slide grooves, and the protruding portions of the slide rail guide shafts are mated with the recessed slide grooves of the sample tube holder.

4. The cuvette mounting mechanism according to claim 1, further comprising a limit stop, which when one side of the cuvette holder abuts against the limit stop, represents that the cuvette holder is mounted in place.

5. The test tube mounting mechanism of claim 1, wherein the sample tube rack is provided with a handle on one side, and when the sample tube rack is mounted in place, the handle is located on the side of the sample tube rack away from the limit baffle.

6. The test tube mounting mechanism of claim 1, wherein the mounting platform is constructed of POM to provide a moving lubrication.

7. A test tube mounting mechanism according to claim 1, wherein the mounting stage is movable.

8. A test tube mounting mechanism according to claim 1, wherein the direction of movement of the mounting station is orthogonal to the direction of movement of the rack.

9. The test tube mounting mechanism of claim 1, wherein the mounting platform is disposed in a mounting slot, and wherein a guide shaft is disposed in the mounting slot and extends through the mounting platform.

10. The test tube mounting mechanism of claim 1, wherein a spring is provided between the guide shaft and an inner wall of one side of the mounting groove.

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