Full-automatic cryopreservation tube uncapping machine

Abstract

The utility model discloses a full-automatic cryopreservation tube uncapping machine. A rack of the full-automatic cryopreservation tube uncapping machine is provided with a supporting base and a guide rail vertically extending upwards from the supporting base. The sample box bearing assembly is arranged on the supporting base and is used for bearing a sample box; the pressing plate assembly is arranged above the sample box bearing assembly, is arranged on the guide rail in a sliding manner and is used for pressing the cryopreservation tube in the sample box; the uncovering assembly is located above the pressing plate assembly and arranged on the guide rail in a sliding mode. The uncovering assembly comprises a plurality of uncovering units, and each uncovering unit comprises an uncovering motor and a plurality of uncovering device operating pieces; a driving gear is arranged on a motor shaft of each cover opening motor, driven gears are arranged at one ends of the cover opener operating pieces, and the driving gears are meshed with the multiple driven gears, so that each cover opening motor can drive the multiple cover opener operating pieces. According to the full-automatic cryopreservation tube uncapping machine, the number of uncapping motors can be reduced, and it is guaranteed that each uncapping device operation piece has enough and equal driving force.

Description

Technical Field

[0001] The utility model belongs to the technical field of biological equipment, and in particular relates to a full-automatic cryopreservation tube cover opening machine. Background Art

[0002] In biological testing or experiments, a fully automatic lid opener is required to open or close the lids of the entire box of cryotubes. The power for opening and closing the lids comes from a drive motor and a transmission mechanism. There are two types of structures of existing cryotube lid openers. One type of cryotube lid opener is provided with multiple drive motors, each of which drives a lid opener, and one lid opener corresponds to one cryotube lid. This type of cryotube lid opener has a large number of motors, a complex structure and high cost. Another type of cryotube lid opener is a motor that is connected to multiple lid openers by a belt. One motor can drive multiple lid openers, but this will result in a small torque on the lid opener, making it impossible to open or close the cryotube. In addition, the belt is prone to slipping and is more susceptible to wear.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0004] The utility model aims to provide a fully automatic cryopreservation tube cover opener, which can reduce the number of cover opener motors and ensure that each cover opener operating member has sufficient and equal driving force.

[0005] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a technical solution as follows: a fully automatic cryotube cover opener, which includes: a frame, a sample box carrying assembly, a pressure plate assembly and a cover opener assembly. The frame has a supporting base and a guide rail extending vertically upward from the supporting base; a sample box carrying assembly is arranged on the supporting base for carrying the sample box; a pressing plate assembly is arranged above the sample box carrying assembly and is slidably arranged on the guide rail for pressing the cryogenic tube in the sample box, and the tube cover of the cryogenic tube can pass through the pressing plate assembly in a working state; an opening cover assembly is located above the pressing plate assembly and is slidably arranged on the guide rail; the opening cover assembly includes a plurality of opening cover units, each opening cover unit includes a opening cover motor and a plurality of opening cover operating members; a driving gear is arranged on the motor shaft of the opening cover motor, a driven gear is arranged at one end of the opening cover operating member, and the other end is used to cooperate with the tube cover of the cryogenic tube to open the tube cover, and the driving gear is meshed with the plurality of driven gears, so that each opening cover motor can drive the plurality of opening cover operating members.

[0006] In one or more embodiments of the utility model, the cover opening assembly further includes: a first fixed plate, a second fixed plate and a first drive motor. The first fixed plate is slidably connected to the guide rail, a plurality of motor matching holes are provided on the first fixed plate, the cover opening motor is arranged on the first fixed plate, and one end of the cover opening motor provided with a driving gear is inserted in the motor matching hole; the second fixed plate is connected to the first fixed plate and can move together with the first fixed plate, a plurality of cover opener matching holes are provided on the second fixed plate, the cover opener operating member is rotatably provided in the cover opener matching holes, and one end of the cover opener operating member extends toward the pressure plate assembly; the first drive motor is arranged on the frame, and is used to drive the first fixed plate and the second fixed plate to move up and down along the guide rail.

[0007] In one or more embodiments of the present invention, a step structure is provided in the cover opener matching hole, and the cover opener operating member is disposed on the step structure and can rotate relative to the cover opener matching hole.

[0008] In one or more embodiments of the utility model, the lid opener operating member includes: a driving section and an operating section. The driving section is provided with the driven gear at one end and a plurality of first mating teeth at the other end; the operating section is provided with a cryotube mating portion at one end and a plurality of second mating teeth at the other end, and the cryotube mating portion can be engaged with the cap of the cryotube to open or close the cap of the cryotube; the first mating teeth and the second mating teeth are meshed with each other and relatively fixed, and the driving section can drive the operating section to rotate.

[0009] In one or more embodiments of the present invention, a first guiding bevel is provided on the side of the first mating tooth portion, a second guiding bevel is provided at a position of the second mating tooth portion opposite to the first mating tooth portion, the driving section and the operating section can rotate together, and the first guiding bevel can slide relative to the second guiding bevel.

[0010] In one or more embodiments of the present invention, each cover opening unit includes a driving gear and four driven gears, the four driven gears are arranged around the driving gear, and the driving gear is meshed with the four driven gears.

[0011] In one or more embodiments of the present invention, each cover opening unit includes a driving gear and three driven gears, and the driving gear is meshed with the three driven gears.

[0012] In one or more embodiments of the present invention, the driving gear and three driven gear wheels of each cover opening unit are arranged at the same height; the driving gears and driven gears of the plurality of cover opening units are arranged at different heights.

[0013] In one or more embodiments of the present invention, the driving gear and the driven gear of each cover opening unit are arranged in an isosceles triangle, the three driven gears are located at the three vertices of the isosceles triangle, and the driving gear is arranged at the midpoint of the base of the isosceles triangle and meshes with the three driven gears.

[0014] In one or more embodiments of the utility model, the cover opening units are arranged in multiple rows in parallel, and each row is provided with multiple cover opening units; the vertices of the isosceles triangles formed by the three driven gears of the cover opening units in each row point in the same direction, and the vertices of the isosceles triangles formed by the three driven gears of the cover opening units in two adjacent rows point in opposite directions.

[0015] In one or more embodiments of the present invention, the cover opening units are arranged in four rows in parallel, and each row is provided with four cover opening units; among the four cover opening units in each row, two adjacent cover opening units are arranged in staggered heights, and the cover opening units located in the same column of the four rows of cover opening units are arranged at the same height.

[0016] In one or more embodiments of the utility model, the pressing plate assembly includes: a pressing plate and a second driving motor. The pressing plate is provided with a plurality of through holes for the freezing tubes to pass through; the second driving motor is arranged on the frame and is used to drive the pressing plate to move up and down along the guide rail.

[0017] In one or more embodiments of the utility model, the sample box carrying assembly includes: a carrying plate and a third driving motor. The carrying plate is arranged on the supporting base, and a guide groove is arranged on the supporting base, and the carrying plate can move along the guide groove; the third driving motor is arranged at the bottom of the supporting base, and is used to drive the carrying plate to move along the guide groove.

[0018] Compared with the prior art, the lid opening assembly of the fully automatic cryopreservation tube lid opening machine of the utility model is provided with a plurality of lid opening units, and a lid opening motor in each lid opening unit can drive a plurality of lid opening device operating parts, which can reduce the number of lid opening motors while ensuring that each lid opening device operating part has sufficient and equal driving force. Secondly, the driving gear and the driven gear can be set in a variety of ways to adapt to different cryopreservation tube placement methods. In addition, a guide slope is provided between the driving section and the operating section of the lid opening device operating part, which can prevent the damage of the cryopreservation tube caused by excessive torque between the driving section and the operating section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a first stereoscopic view of a fully automatic cryogenic tube decapping machine in one embodiment of the utility model;

[0021] Figure 2 This is a second stereoscopic view of the fully automatic cryogenic tube decapping machine in one embodiment of the utility model;

[0022] Figure 3 for Figure 2 Enlarged view of area A in the middle;

[0023] Figure 4 This is a first schematic diagram of a cover opener operating member in an embodiment of the utility model;

[0024] Figure 5 This is a second schematic diagram of the cover opener operating member in one embodiment of the utility model;

[0025] Figure 6 It is a schematic diagram of the arrangement of the driving gear and the driven gear in the cover opening unit in one embodiment of the utility model;

[0026] Figure 7 A three-dimensional diagram of a second fixing plate in an embodiment of the utility model;

[0027] Figure 8 This is a first schematic diagram of the arrangement of the driving gear and the driven gear in the cover opening unit in another embodiment of the utility model;

[0028] Fig. 9 A second schematic diagram of the arrangement of the driving gear and the driven gear in the cover opening unit in another embodiment of the utility model;

[0029] Fig.10 This is a third schematic diagram of the arrangement of the driving gear and the driven gear in the cover opening unit in another embodiment of the utility model.

[0030] Description of main reference numerals:

[0031] 1-frame, 11-support base, 12-guide rail, 2-sample box carrying assembly, 21-carrying plate, 211-guide groove, 22-third driving motor, 3-pressing plate assembly, 31-pressing plate, 311-through hole, 32-second driving motor, 4-opening assembly, 41-opening motor, 42-opening device operating member, 421-driving section, 4211-first matching tooth portion, 42111-first guiding inclined surface, 422-operating section, 4221-second matching tooth portion, 42211-second guiding inclined surface, 43-driving gear, 44-driven gear, 45-first fixing plate, 451-motor matching hole, 46-second fixing plate, 461-opening device matching hole, 4611-step structure, 47-first driving motor. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0033] like Figure 1-10 As shown, a fully automatic cryotube cover opener in one embodiment of the utility model comprises: a frame 1, a sample box carrying assembly 2, a pressing plate assembly 3 and a cover opener assembly 4.

[0034] The frame 1 has a support base 11 and a guide rail 12 extending vertically upward from the support base 11. The sample box carrying assembly 2 is arranged on the support base 11 and is used to carry the sample box. The pressing plate assembly 3 is arranged above the sample box carrying assembly 2 and is slidably arranged on the guide rail 12. The pressing plate assembly 2 is used to press the cryotubes in the sample box to prevent the cryotubes from rotating during the process of switching the tubes, and the tube caps of the cryotubes can pass through the pressing plate assembly 3 in the working state. The opening assembly 4 is arranged above the pressing plate assembly 3 and is slidably arranged on the guide rail 12. The opening assembly 4 includes a plurality of opening units, each of which includes an opening motor 41 and a plurality of opening operating members 42. In one opening unit, a driving gear 43 is arranged on the motor shaft of each opening motor 41, and a driven gear 44 is arranged at one end of each opening operating member 42, and the other end is used to cooperate with the tube cap of the cryotube to open the tube cap. The driving gear 43 meshes with a plurality of driven gears 44 , so that in one cover opening unit, each cover opening motor 41 can drive a plurality of cover opener operating members 42 .

[0035] In the above embodiment, the cover opening assembly 4 of the fully automatic cryogenic tube cover opening machine is provided with a plurality of cover opening units, and a cover opening motor 41 in each cover opening unit can drive a plurality of cover opening device operating members 42. Such a configuration can, on the one hand, reduce the number of cover opening motors 41, and on the other hand, ensure that each cover opening device operating member 42 has sufficient and equal driving force, so that the situation of being unable to open or close the cryogenic tube cover will not occur.

[0036] In one embodiment, if Figure 1-3 As shown, the cover opening assembly 4 further includes: a first fixing plate 45 , a second fixing plate 46 and a first driving motor 47 .

[0037] The first fixing plate 45 is slidably connected to the guide rail 12 and can move up and down along the guide rail 12. Secondly, a plurality of motor matching holes 451 are provided on the first fixing plate 45, and each cover opening motor 41 corresponds to one of the motor matching holes 451. A plurality of cover opening motors 41 are arranged on the first fixing plate 45, and one end of the driving gear 43 of each cover opening motor 41 is inserted into one of the motor matching holes 451.

[0038] The second fixing plate 46 is connected to the first fixing plate 45 and can move together with the first fixing plate 45 along the guide rail 12. In order to better install the cover opener operating member 42, a plurality of cover opener matching holes 461 are provided on the second fixing plate 46. The cover opener operating member 42 is rotatably arranged in the cover opener matching holes 461, and one end of the cover opener operating member 42 extends toward the pressure plate assembly 3.

[0039] In one embodiment, if Figure 7 As shown, a step structure 4611 is provided in the cover opener matching hole 461, and the cover opener operating member 42 can be disposed on the step structure 4611 and can rotate relative to the cover opener matching hole 461. A protrusion is correspondingly provided on the cover opener operating member 42, so that the protrusion cooperates with the step structure 4611 to form a limiting effect on the cover opener operating member 42, so that the cover opener operating member 42 can rotate in the cover opener matching hole 461 and will not fall from the cover opener matching hole 461.

[0040] The first drive motor 47 is disposed on the frame 1, and is used to drive the first fixing plate 45 and the second fixing plate 46 to move up and down along the guide rail 12. Specifically, the first fixing plate 45 and the second fixing plate 46 can move up and down along the guide rail 12 under the drive of the first drive motor 47 to adjust the lid opener operating member 42 to be close to or away from the cryopreservation tube.

[0041] In one embodiment, if Figure 4 and Figure 5As shown, the cover opener operating member 42 includes: a driving section 421 and an operating section 422 that rotates together with the driving section 421. The driving section 421 and the operating section 422 can be an integral structure or a two-section structure with a mutual cooperation relationship. For example, a driven wheel gear 44 is provided at one end of the driving section 421, and a plurality of first matching tooth portions 4211 are provided at the other end and are arranged at intervals along the circumference of the driving section 421. The driven gear 44 of the driving section 421 is meshed with the driving gear 43 of the cover opening motor 41, and can rotate counterclockwise or clockwise under the drive of the cover opening motor 41.

[0042] One end of the operating section 422 is provided with a cryotube mating portion, and the other end is provided with a plurality of second mating teeth 4221 arranged at intervals along the circumference of the operating section 422. The cryotube mating portion can engage with the cap of the cryotube, so that the cap of the cryotube can be opened or closed during the rotation of the operating end. The cryotube mating portion has a variety of shapes, and its specific shape set on the cryotube decapping machine can be adjusted according to the shape of the cap of the cryotube to be opened or closed.

[0043] The first mating tooth portion 4211 of the driving section 421 and the second mating tooth portion 4221 of the operating section 422 can mesh with each other and be relatively fixed, so that the driving section 421 can drive the operating section 422 to rotate together. A mutually mating guiding inclined surface can be provided between the first mating tooth portion 4211 and the second mating tooth portion 4221 to prevent excessive torque between the driving section 421 and the operating section 422.

[0044] Preferably, a first guiding bevel 42111 is provided on the side of the first mating tooth portion 4211, and a second guiding bevel 42211 is provided at a position of the second mating tooth portion 4221 opposite to the first mating tooth portion 4211. When the torque between the first guiding bevel 42111 and the second guiding bevel 42211 is too strong between the driving section 421 and the operating section 422, the first guiding bevel 42111 can slide relative to the second guiding bevel 42211, so that the first mating tooth portion 4211 and the second mating tooth portion 4221 can slip, so as to avoid over-tightening of the cap of the cryotube and causing damage to it.

[0045] Since there are many ways to arrange the cryotubes in the sample box, there are also many ways to arrange the driving gear 43 and the driven gear 44 in each cover opening unit. Figure 6 As shown, each cover opening unit includes a driving gear 43 and four driven gears 44. The four driven gears 44 are arranged around the driving gear 43 and the driving gear 43 is meshed with the four driven gears 44. In this arrangement, one cover opening motor 41 can drive four cover opener operating members 42 at the same time. The number of cover opener operating members 42 driven by each cover opening motor 41 is small, so that the torque of the cover opener operating member 42 can be guaranteed.

[0046] In another embodiment, Figure 8-10 As shown, each cover opening unit includes a driving gear 43 and three driven gears 44, and the driving gear 43 is meshed with the three driven gears 44. In this arrangement, the driving gear 43 and the three driven gears 44 of each cover opening unit are arranged at the same height. The driving gears 43 and the driven gears 44 of multiple cover opening units are arranged at different heights.

[0047] In one embodiment, the driving gear 43 and the driven gear 44 of each cover opening unit are arranged in an isosceles triangle, and the three driven gears 44 are located at the three vertices of the isosceles triangle. The driving gear 43 is arranged at the midpoint of the base of the isosceles triangle and meshes with the three driven gears 44. Furthermore, the cover opening units are arranged in multiple rows in parallel, and each row is provided with multiple cover opening units. The vertices of the isosceles triangle formed by the three driven gears 44 of each row of cover opening units point in the same direction, and the vertices of the isosceles triangle formed by the three driven gears 44 of the cover opening units in two adjacent rows point in opposite directions. If the vertices of the isosceles triangle formed by the three driven gears 44 of the cover opening units in two adjacent rows point in the same direction, the space occupied by the cover opening unit will be larger. The opposite directions of the cover opening units in two adjacent rows can maximize the use of the installation space, thereby making the structure of the cover opening machine more compact.

[0048] In order to further compact the structure of the cover opening machine, the cover opening units are arranged in four parallel rows, and each row is provided with four cover opening units. In each row of four cover opening units, two adjacent cover opening units are arranged in a staggered manner, and the cover opening units in the same column of the four rows of cover opening units are arranged at the same height.

[0049] The above-mentioned arrangements of the driving gear 43 and the driven gear 44 in the cover opening unit are two preferred arrangements of the present invention, which does not mean that the driving gear 43 and the driven gear 44 in the cover opening unit are only the above-mentioned two arrangements.

[0050] In one embodiment, the pressing plate assembly 3 includes a pressing plate 31 and a second drive motor 32. The pressing plate 31 is provided with a plurality of through holes 311 for the cryotubes in the sample box to pass through. The second drive motor 32 is disposed on the frame 1, and the pressing plate 31 can move up and down under the drive of the second drive motor 32 and is pressed on the cryotube. The pressing plate 31 can fix the cryotube to prevent the cryotube from rotating when the cover opener operating member 42 is opening or closing the cryotube cover.

[0051] In one embodiment, the sample box carrying assembly 2 includes: a carrying plate 21 and a third driving motor 22. The carrying plate 21 is disposed on the supporting base 11, and a guide groove 211 is disposed on the supporting base 11. The carrying plate 21 can move along the guide groove 211 under the drive of the third driving motor 22, so as to provide a carrying space for the sample box and move the sample box to the bottom of the pressing plate assembly 3. A positioning portion may be disposed on the carrying plate 21, which is used for positioning and limiting the sample box when it is placed on the carrying plate 21.

[0052] The working process of the fully automatic cryogenic tube decapping machine is as follows: first, place the sample box containing the cryogenic tube on the carrier plate 21. The third drive motor 22 drives the carrier plate 21 to move to the bottom of the pressure plate assembly 3. The second drive motor 32 drives the pressure plate 31 to be pressed on the cryogenic tube, and then the first drive motor 47 drives the decapping assembly 4 to abut against the tube cover of the cryogenic tube. Then, the decapping motor 41 works, the driving gear 43 drives the driven gear 44 to rotate, and the decapping device operating member 42 rotates to unscrew the tube cover of the cryogenic tube. Conversely, the tube cover of the cryogenic tube can be tightened.

[0053] In summary, the cover opening assembly 4 of the fully automatic cryogenic tube opener is provided with a plurality of cover opening units, and a cover opening motor 41 in each cover opening unit can drive a plurality of cover opener operating members 42, which can reduce the number of cover opening motors 41 while ensuring that each cover opener operating member 42 has sufficient and equal driving force. Secondly, the driving gear 43 and the driven gear 44 can be set in a variety of ways to adapt to different cryogenic tube placement methods. In addition, a guide ramp is provided between the driving section 421 and the operating section 422 of the cover opener operating member 42, which can prevent excessive torque between the driving section 421 and the operating section 422.

[0054] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0055] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fully automatic cryogenic tube decapping machine, characterized in that: include: A frame having a support base and a guide rail extending vertically upward from the support base; A sample box carrying assembly, arranged on the supporting base, and used for carrying the sample box; A pressing plate assembly is arranged above the sample box carrying assembly and is slidably arranged on the guide rail, and is used to press the cryotubes in the sample box, and the tube caps of the cryotubes can pass through the pressing plate assembly in the working state; and The cover opening assembly is located above the pressure plate assembly and is slidably arranged on the guide rail; the cover opening assembly includes a plurality of cover opening units, each of which includes a cover opening motor and a plurality of cover opener operating members; a driving gear is arranged on the motor shaft of the cover opening motor, a driven gear is arranged at one end of the cover opener operating member, and the other end is used to cooperate with the tube cover of the freezing tube to open the tube cover, the driving gear is meshed with the plurality of driven gears, so that each cover opening motor can drive the plurality of cover opener operating members.

2. The fully automatic cryogenic tube decapping machine according to claim 1, characterized in that: The cover opening assembly also includes: A first fixing plate is slidably connected to the guide rail, a plurality of motor matching holes are formed on the first fixing plate, the cover opening motor is arranged on the first fixing plate, and one end of the cover opening motor provided with a driving gear is inserted into the motor matching hole; a second fixing plate connected to the first fixing plate and capable of moving together with the first fixing plate, the second fixing plate being provided with a plurality of cover opener matching holes, the cover opener operating member being rotatably disposed in the cover opener matching holes, and one end of the cover opener operating member extending toward the pressure plate assembly; and A first driving motor is disposed on the frame and is used for driving the first fixing plate and the second fixing plate to move up and down along the guide rail.

3. The fully automatic cryogenic tube decapping machine according to claim 2, characterized in that: A step structure is arranged in the cover opener matching hole, and the cover opener operating member is arranged on the step structure and can rotate relative to the cover opener matching hole.

4. The fully automatic cryogenic tube decapping machine according to claim 1, characterized in that: The cover opener operating member comprises: a driving section, one end of which is provided with the driven gear and the other end of which is provided with a plurality of first mating tooth portions; and The operating section has a freezing tube mating portion at one end and a plurality of second mating tooth portions at the other end. The freezing tube mating portion can engage with the tube cover of the freezing tube to open or close the tube cover of the freezing tube; the first mating tooth portion and the second mating tooth portion are meshed with each other and relatively fixed, and the driving section can drive the operating section to rotate.

5. The fully automatic cryogenic tube decapping machine according to claim 4, characterized in that: A first guiding bevel is arranged on the side of the first mating tooth portion, and a second guiding bevel is arranged at a position of the second mating tooth portion opposite to the first mating tooth portion. The driving section and the operating section can rotate together, and the first guiding bevel can slide relative to the second guiding bevel.

6. The fully automatic cryogenic tube decapping machine according to claim 1, characterized in that: Each cover opening unit includes a driving gear and four driven gears. The four driven gears are arranged around the driving gear, and the driving gear is meshed with the four driven gears.

7. The fully automatic cryogenic tube decapping machine according to claim 1, characterized in that: Each cover opening unit comprises a driving gear and three driven gears, and the driving gear is meshed with the three driven gears.

8. The fully automatic cryogenic tube decapping machine according to claim 7, characterized in that: The driving gear and three driven gear wheels of each cover opening unit are arranged at the same height; the driving gears and driven gear wheels of the plurality of cover opening units are arranged at different heights.

9. The fully automatic cryogenic tube decapping machine according to claim 7, characterized in that: The driving gear and the driven gear of each cover opening unit are arranged in an isosceles triangle, the three driven gears are located at the three vertices of the isosceles triangle, the driving gear is arranged at the midpoint of the base of the isosceles triangle and meshes with the three driven gears.

10. The fully automatic cryogenic tube decapping machine according to claim 9, characterized in that: The cover opening units are arranged in multiple rows in parallel, and each row is provided with multiple cover opening units; the vertices of the isosceles triangles formed by the three driven gears of the cover opening units in each row point in the same direction, and the vertices of the isosceles triangles formed by the three driven gears of the cover opening units in two adjacent rows point in opposite directions.

11. The fully automatic cryogenic tube decapping machine according to claim 10, characterized in that: The cover opening units are arranged in four parallel rows, each row is provided with four cover opening units, and in each row of four cover opening units, two adjacent cover opening units are arranged in staggered heights, and the cover opening units in the same column of the four rows of cover opening units are arranged at the same height.

12. The fully automatic cryogenic tube decapping machine according to claim 1, characterized in that: The pressure plate assembly comprises: A pressing plate having a plurality of through holes for the freezing tubes to pass through; and The second driving motor is arranged on the frame and is used for driving the pressing plate to move up and down along the guide rail.

13. The fully automatic cryogenic tube decapping machine according to claim 1, characterized in that: The sample box carrying component comprises: A bearing plate, arranged on the supporting base, the supporting base being provided with a guide groove, the bearing plate being able to move along the guide groove; and The third driving motor is arranged at the bottom of the supporting base and is used for driving the carrying plate to move along the guiding groove.

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