Biological sample cryopreservation tube low temperature tube picking workstation

Abstract

The present invention provides a low-temperature tube picking workstation for biological sample cryopreservation tubes, which relates to the technical field of biological sample storage, and comprises a mobile base, wherein a storage mechanism and a transfer mechanism are installed in the middle of the mobile base, and the storage mechanism and the transfer mechanism are distributed on the left and right, and sealing mechanisms are correspondingly arranged above the storage mechanism and the transfer mechanism, and the sealing mechanism is installed on the front side of the upper end of the mobile base, and a tube picking mechanism is installed on the rear side of the upper end of the mobile base, and the transfer mechanism is used to transport a biological sample box to be sampled. After the transfer mechanism moves the biological sample box to be sampled to a target position, the sealing mechanism is opened, and the tube picking mechanism moves the biological sample box to be sampled to the storage mechanism, and then the sample test tube to be sampled that needs to be transferred is transferred to the target biological sample box of the storage mechanism under the low-temperature environment of the storage mechanism, and the sample test tube to be sampled is transferred under the low-temperature environment to avoid affecting the activity of samples in other test tubes in the biological sample box to be sampled.

Description

Technical Field

[0001] The invention relates to the technical field of biological sample storage, in particular to a low-temperature tube picking workstation for biological sample cryopreservation tubes. Background Art

[0002] In the biomedical field, sample freezing equipment is used to store biological samples such as blood samples, vaccines, bacteria and viruses at low temperatures, so that the samples are kept in liquid nitrogen for long-term active preservation. The equipment stores multiple sample boxes, and multiple test tubes are arranged in the sample boxes. The samples to be stored are in the test tubes.

[0003] Most current cryopreservation devices store and take out entire sample boxes. When a small number of test tubes need to be taken out, the sample box containing the test tubes is generally taken out of the device and the test tubes are taken out at room temperature, but this will destroy the samples in other test tubes in the sample box. Summary of the invention

[0004] The present invention provides a low-temperature tube picking workstation for biological sample cryopreservation tubes, which is used to solve the technical problem that most of the current cryopreservation equipment mentioned above is used to store and remove entire sample boxes. When a small number of test tubes need to be removed, the sample box containing the test tubes is generally taken out of the equipment and the test tubes are taken out at room temperature, but this will destroy the activity of samples in other test tubes in the sample box.

[0005] In order to solve the above technical problems, the present invention discloses a low-temperature tube picking workstation for biological sample freezing tubes, including a mobile base, a storage mechanism and a transfer mechanism are installed in the middle of the mobile base, and the storage mechanism and the transfer mechanism are distributed on the left and right, and a sealing mechanism is correspondingly provided above the storage mechanism and the transfer mechanism, and the sealing mechanism is installed on the upper front side of the mobile base, and a tube picking mechanism is installed on the upper rear side of the mobile base.

[0006] Preferably, the mobile base includes a mounting plate 2, four legs are installed at the top corners of the lower end of the mounting plate 2, baffles are fixed between adjacent legs, wheels are installed at the lower ends of the legs, and a mounting plate 1 is fixed in the middle of the four legs.

[0007] Preferably, the storage mechanism includes a liquid nitrogen tank, the upper end of which is an open structure. The liquid nitrogen tank is fixedly arranged on the upper right side of the mounting plate. A storage cavity is provided inside the liquid nitrogen tank. A placement plate is installed in the storage cavity. The placement plate is an L-shaped plate. A plurality of placement grooves are provided on the placement plate. The placement grooves are used to place the target biological sample box.

[0008] Preferably, the transfer mechanism includes a mounting seat, which is fixedly arranged on the left side of the upper end of the mounting plate one, and a transfer port is provided on the baffles corresponding to the front and rear sides of the mounting seat, and conveying rollers are symmetrically provided on the front and rear sides of the upper end of the mounting seat, and a transfer conveyor belt is connected between the conveying rollers on the front and rear sides, and a transfer shell is installed on the transfer conveyor belt, and the upper end of the transfer shell is an open structure, and the upper part of the transfer shell is slidably connected to the sliding groove at the lower end of the mounting plate two.

[0009] Preferably, the sealing mechanism includes an opening 1 and an opening 2 which are arranged through the upper end of the second mounting plate, the opening 1 is correspondingly arranged on the upper side of the transfer shell, the opening 2 is correspondingly arranged on the upper side of the liquid nitrogen tank, the opening 2 is correspondingly matched with the sealing block 2, the sealing block 2 is fixedly connected with the sealing cover 2, the sealing cover 2 is fixedly connected with the rotating shaft 2, the rotating shaft 2 is rotatably connected with the support seat 2 and the support plate 2, a torsion spring 2 is fixedly arranged between the support plate 2 and the rotating shaft 2, and the torsion spring 2 is sleeved on the rotating shaft 2, the support seat 2 is fixedly arranged on the upper right side of the mounting plate 2, the opening 1 is correspondingly arranged on the upper end of the transfer shell, the opening 1 is correspondingly matched with the sealing block 1, the sealing block 1 is fixedly connected with the sealing cover 1, the sealing cover 1 is fixedly connected with the rotating shaft 1, the rotating shaft 1 is rotatably connected with the support seat 1 and the support plate 1, a torsion spring 1 is fixedly arranged between the support plate 1 and the rotating shaft 1, and a torsion spring is sleeved on the rotating shaft 1, the support seat 1 is fixedly arranged on the upper left side of the mounting plate 2.

[0010] Preferably, a positioning port is provided on the rear side of opening one, a positioning block one is provided at the front end of the positioning port for sliding along the up and down directions, the inclined end of positioning block one is slidably connected to the inclined end of positioning block two, positioning block two is slidably connected to the positioning port along the front and back directions, a spring is fixed between positioning block two and the positioning port, and the lower end of positioning block two is in contact with the upper end of sealing cover one.

[0011] Preferably, the sealing mechanism and the transfer mechanism are connected via a driving mechanism, which includes a motor, which is fixedly arranged at the left end of the second mounting plate, the motor is fixedly connected to the motor shaft, the motor shaft is fixedly connected to the second pulley, the second pulley is fixedly connected to the first bevel gear via a torsion spring rod, the second pulley is connected to the first pulley via a conveyor belt, the first pulley is fixedly connected to the driving shaft via a speed increasing mechanism, and the driving shaft is fixedly connected to the conveying roller on one side.

[0012] Preferably, bevel gear one is meshed with bevel gear two, bevel gear two is fixedly connected to rotating shaft one, rotating shaft one is fixedly connected to gear one, gear one is meshed with gear two, gear two is fixedly connected to pulley three through connecting shaft one, pulley three is connected to pulley four through conveyor belt two, pulley four is connected to pulley five through conveyor belt three, pulley five is fixedly connected to rotating shaft two through connecting shaft two, a cavity is provided on mounting plate two for placing gear two, pulley three, conveyor belt two and pulley four, and bevel gear one is an incomplete bevel gear.

[0013] Preferably, the pipe picking mechanism includes a fixed plate, which is fixedly arranged on the rear side of the upper end of the mounting plate 2. The mounting plate 2 is symmetrically provided with a rotating shaft 3 on the left and right sides. The rotating shaft 3 is fixedly connected to the transmission wheel. The transmission wheels on the left and right sides are connected by a connecting belt. The rotating shaft 3 on the left is fixedly connected to the driving motor.

[0014] Preferably, the tube picking mechanism also includes a sliding shaft, which is slidably connected to the sliding groove of the sliding block, the sliding block is slidably connected to the mounting plate 2 along the left and right directions, the sliding block is fixedly connected to the electric telescopic rod 1, the electric telescopic rod 1 is fixedly connected to the fixed block, the fixed block is fixedly connected to the fixed end of the electric telescopic rod 2, the movable end of the electric telescopic rod 2 is fixedly connected to the sample box manipulator and the electric telescopic rod 3, the movable end of the electric telescopic rod 3 is fixedly connected to the electric telescopic rod 4 and the top block, and the electric telescopic rod 4 is fixedly connected to the test tube manipulator.

[0015] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The transport mechanism is used to transport the biological sample boxes to be sampled. The transport mechanism can transport the sample tubes to be sampled from different storage devices to the biological sample cryopreservation tube low-temperature tube picking workstation of the present invention, and transfer them to the storage mechanism through the tube picking mechanism, thereby achieving the purpose of centralized tube picking;

[0018] 2. The sample tubes to be sampled are transferred in a low-temperature environment through the tube picking mechanism to avoid affecting the activity of samples in other test tubes in the biological sample box to be sampled. There is no need for manual transfer operations to avoid harm to operators caused by low temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0022] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of region A;

[0023] Figure 4 It is a schematic diagram of the connection structure between the positioning block 2 and the sealing cover 1 of the present invention;

[0024] Figure 5It is a schematic diagram of the connection structure of the sliding block and the connecting belt of the present invention;

[0025] Figure 6 It is a schematic diagram of the connection structure of the fixing block of the present invention;

[0026] Figure 7 It is a schematic diagram of the placement plate structure of the present invention.

[0027] In the figure: 1. mobile base; 2. wheels; 3. mounting plate 1; 4. mounting seat; 5. conveyor roller; 6. liquid nitrogen tank; 7. storage chamber; 8. placement plate; 9. pulley 1; 10. drive shaft; 11. transport shell; 12. conveyor belt 1; 13. opening 1; 14. mounting plate 2; 15. sliding groove; 16. electric telescopic rod 3; 17. motor; 18. rotating shaft 2; 19. sealing cover 2; 20. sealing block 2; 21. sealing cover 1; 22. sealing block 1; 23. motor shaft; 24. test tube manipulator; 25. electric telescopic rod 2; 26. pulley 2; 27. bevel gear 1; 28. bevel gear 2; 29. ​​rotating shaft 1; 30. gear Wheel one; 31. Gear two; 32. Pulley three; 33. Conveyor belt two; 34. Pulley four; 35. Conveyor belt three; 36. Support seat two; 37. Pulley five; 38. Top block; 39. Opening two; 40. Support plate one; 41. Torsion spring one; 42. Support seat one; 43. Positioning block one; 44. Positioning block two; 45. Positioning opening; 46. Spring; 47. Rotating shaft three; 48. Conveyor wheel; 49. Connecting belt; 50. Fixed plate; 51. Sliding shaft; 52. Sliding block; 53. Sliding slot; 54. Electric telescopic rod one; 55. Fixed block; 56. Electric telescopic rod four; 57. Torsion spring two; 58. Support plate two; 59. Placement slot. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] The present invention provides the following embodiments

[0031] Example 1

[0032] The embodiment of the present invention provides a biological sample cryopreservation tube low temperature tube selection workstation, such as Figure 1-Figure 3 As shown, it includes a mobile base 1, a storage mechanism and a transfer mechanism are installed in the middle of the mobile base 1, and the storage mechanism and the transfer mechanism are distributed on the left and right, and a sealing mechanism is correspondingly provided above the storage mechanism and the transfer mechanism, and the sealing mechanism is installed on the front side of the upper end of the mobile base 1, and a pipe lifting mechanism is installed on the rear side of the upper end of the mobile base 1;

[0033] The mobile base 1 includes a second mounting plate 14, four legs are installed at the top corners of the lower end of the mounting plate 14, baffles are fixed between adjacent legs, wheels 2 are installed at the lower ends of the legs, and a mounting plate 1 3 is fixed in the middle of the four legs.

[0034] The beneficial effects of the above technical solution are:

[0035] The transport mechanism is used to transport the biological sample box to be sampled. The transport mechanism can transport the sample tubes to be sampled stored in different storage devices to the biological sample cryopreservation tube low-temperature tube picking workstation of the present invention, and transfer them to the storage mechanism through the tube picking mechanism, thereby achieving the purpose of centralized tube picking. After the transport mechanism moves the biological sample box to be sampled to the target position, the sealing mechanism is opened, and the tube picking mechanism moves the biological sample box to be sampled to the storage mechanism, and then transfers the sample tubes to be sampled to be transferred to the target biological sample box of the storage mechanism under the low-temperature environment of the storage mechanism. The target biological sample box is The invention is specially used for placing test tubes that need to be taken out and used later. The sample test tubes to be sampled are transferred in a low-temperature environment through a tube picking mechanism, so as to avoid affecting the activity of samples in other test tubes in the biological sample box to be sampled. There is no need for manual transfer operation, so as to avoid harm to the operator caused by low temperature. The invention solves the technical problem that most of the current freezing storage devices mentioned above are used to store and take out the whole sample box. When a small number of test tubes need to be taken out, the sample box containing the test tube is generally taken out from the device and the test tube is taken out at room temperature, but this will destroy the activity of samples in other test tubes in the sample box.

[0036] Example 2

[0037] On the basis of Example 1, Figure 1-Figure 7 As shown, the storage mechanism includes a liquid nitrogen tank 6, the upper end of the liquid nitrogen tank 6 is an open structure, the liquid nitrogen tank 6 is fixedly arranged on the upper right side of the mounting plate 3, the liquid nitrogen tank 6 is provided with a storage cavity 7 inside, a placement plate 8 is installed in the storage cavity 7, the placement plate 8 is an L-shaped plate, and a plurality of placement grooves 59 are provided on the placement plate 8, and the placement grooves 59 are used to place the target biological sample box and the biological sample box to be sampled;

[0038] The transfer mechanism includes a mounting seat 4, which is fixedly arranged on the left side of the upper end of the mounting plate 1 3, and a transfer port is provided on the corresponding baffles on the front and rear sides of the mounting seat 4, and conveying rollers 5 are symmetrically provided on the front and rear sides of the upper end of the mounting seat 4, and a transfer conveyor belt is connected between the conveying rollers 5 on the front and rear sides, and a transfer shell 11 is installed on the transfer conveyor belt, and the upper end of the transfer shell 11 is an open structure, and the upper part of the transfer shell 11 is slidably connected to the sliding groove 15 at the lower end of the mounting plate 2 14;

[0039] The sealing mechanism includes an opening 13 and an opening 39 which are arranged through the upper end of the mounting plate 14. The opening 13 is arranged on the upper side of the transport shell 11, and the opening 39 is arranged on the upper side of the liquid nitrogen tank 6. The opening 39 is matched with the sealing block 20. The sealing block 20 is fixedly connected with the sealing cover 19. The sealing cover 19 is fixedly connected with the rotating shaft 18. The rotating shaft 18 is rotatably connected with the support seat 36 and the support plate 58. A torsion spring 57 is fixedly arranged between the support plate 58 and the rotating shaft 18, and the torsion spring 57 is sleeved on the rotating shaft 18. On the upper side, the support seat 36 is fixedly arranged on the right side of the upper end of the mounting plate 14, the opening 13 is correspondingly arranged on the upper end of the transfer shell 11, the opening 13 corresponds to the sealing block 22, the sealing block 22 is fixedly connected to the sealing cover 21, the sealing cover 21 is fixedly connected to the rotating shaft 29, the rotating shaft 29 is rotatably connected to the support seat 42 and the support plate 40, a torsion spring 41 is fixedly arranged between the support plate 40 and the rotating shaft 29, and the torsion spring 41 is sleeved on the rotating shaft 29, and the support seat 42 is fixedly arranged on the left side of the upper end of the mounting plate 14.

[0040] The beneficial effects of the above technical solution are:

[0041] After the transfer shell 11 is placed on the transfer conveyor belt, the top cover of the transfer shell 11 is opened. When the transfer conveyor belt drives the transfer shell 11 to move to the bottom of the opening 13, the sealing cover 1 21 and the sealing cover 2 19 are automatically opened synchronously, and the sliding groove 15 plays a positioning and guiding role in the placement of the transfer shell 11. The sealing cover 1 21 drives the sealing block 1 22 to disengage from the opening 13, and the sealing block 20 to disengage from the opening 2 39, so that the tube picking mechanism can pass through the opening 13 and the opening 2 39, so as to facilitate the transfer of the biological sample box to be sampled from the transfer shell 11 to the liquid nitrogen tank 6. Liquid nitrogen is stored in the liquid nitrogen tank 6 and the transfer shell 11, so that the biological sample box to be sampled and the sample test tube to be sampled can always be kept at low temperature.

[0042] Example 3

[0043] On the basis of Example 2, Figure 1-Figure 4As shown, a positioning opening 45 is provided at the rear side of the opening 13, a positioning block 1 43 is provided at the front end of the positioning opening 45 for sliding along the up-down direction, the inclined end of the positioning block 1 43 is slidably connected with the inclined end of the positioning block 2 44, the positioning block 2 44 is slidably connected with the positioning opening 45 along the front-back direction, a spring 46 is fixedly provided between the positioning block 2 44 and the positioning opening 45, and the lower end of the positioning block 2 44 is in contact with the upper end of the sealing cover 1 21;

[0044] The sealing mechanism and the transfer mechanism are connected through a driving mechanism, and the driving mechanism includes a motor 17, which is fixedly arranged at the left end of the second mounting plate 14, the motor 17 is fixedly connected to the motor shaft 23, the motor shaft 23 is fixedly connected to the second pulley 26, the second pulley 26 is fixedly connected to the bevel gear 1 27 through a torsion spring rod, the second pulley 26 is connected to the pulley 1 9 through the conveyor belt 12, the pulley 1 9 is fixedly connected to the driving shaft 10 through the speed increasing mechanism, and the driving shaft 10 is fixedly connected to the conveying roller 5 on one side;

[0045] Bevel gear one 27 meshes with bevel gear two 28, bevel gear two 28 is fixedly connected with rotating shaft one 29, rotating shaft one 29 is fixedly connected with gear one 30, gear one 30 meshes with gear two 31, gear two 31 is fixedly connected with pulley three 32 through connecting shaft one, pulley three 32 is connected with pulley four 34 through conveyor belt two 33, pulley four 34 is connected with pulley five 37 through conveyor belt three 35, pulley five 37 is fixedly connected with rotating shaft two 18 through connecting shaft two, a cavity for placing gear two 31, pulley three 32, conveyor belt two 33 and pulley four 34 is provided on mounting plate two 14, and bevel gear one 27 is an incomplete bevel gear.

[0046] The beneficial effects of the above technical solution are:

[0047] When the driving mechanism is working, the motor 17 is started to drive the motor shaft 23 to rotate, the motor shaft 23 drives the pulley 26 to rotate, the pulley 26 drives the bevel gear 1 27 to rotate through the torsion spring rod, the pulley 26 drives the pulley 1 9 to rotate through the conveyor belt 12, the pulley 1 9 drives the conveyor roller 5 on one side to rotate through the driving shaft 10, the conveyor roller 5 on one side drives the conveyor roller 5 on the other side to rotate through the transfer conveyor belt, and drives the transfer shell 11 to move from front to back. In this process, the bevel gear 1 27 drives the bevel gear 1 Gear 28 rotates, bevel gear 28 drives rotating shaft 1 29 to rotate, rotating shaft 1 29 drives sealing cover 1 21 to have a rotating tendency, because at this time the lower end of positioning block 24 contacts the upper end of sealing cover 1 21, sealing cover 1 21 cannot rotate, at this time the torsion spring rod is deformed, bevel gear 1 27 cannot rotate, and the upper end of transfer shell 11 just contacts positioning block 1 43 and pushes positioning block 1 43 to move upward, positioning block 1 43 pushes positioning block 2 44 to slide backward, spring 46 is compressed until The positioning block 244 is out of contact with the sealing cover 21, the motor 17 stops working, the transfer shell 11 just moves to the lower end of the opening 13 and stops moving, the bevel gear 1 27 rotates under the elastic action of the torsion spring rod, thereby driving the bevel gear 2 28 to rotate, at this time, the rotating shaft 1 29 drives the sealing cover 21 to rotate, the rotating shaft 1 29 drives the gear 2 31 to rotate, the gear 2 31 drives the pulley 3 32 to rotate through the connecting shaft 1, the pulley 3 32 drives the pulley 4 34 to rotate through the conveyor belt 2 33, and the pulley The four 34 drives the pulley five 37 to rotate through the conveyor belt three 35, and the pulley five 37 drives the rotating shaft two 18 to rotate through the connecting shaft two, and the rotating shaft two 18 drives the sealing cover two 19 to rotate, so that the purpose of the sealing cover one 21 and the sealing cover two 19 rotating synchronously is achieved, and the sealing cover one 21 and the sealing cover two 19 rotate in opposite directions, the torsion spring one 41 is deformed, and the torsion spring two 57 is deformed, until the sealing cover one 21 and the sealing cover two 19 are fully opened, at which time the torsion spring rod cannot drive the bevel gear one 27 to continue rotating;

[0048] After the tube picking mechanism transfers the biological sample box to be sampled from the transport shell 11 to the liquid nitrogen tank 6 through the opening 13 and the opening 2 39, places the sample test tube to be sampled in the target biological sample box, and transfers the biological sample box to be sampled from the liquid nitrogen tank 6 to the transport shell 11, the transport shell 11 is controlled to continue to move, and the motor 17 is restarted. After the saw teeth of the bevel gear 1 27 are disengaged from the saw teeth of the bevel gear 28, the sealing cover 1 21 and the sealing cover 2 19 automatically return to their original positions under the elastic action of the torsion spring 1 41 and the torsion spring 2 57, until the transport shell 11 is disengaged from the positioning block 1 43, and the positioning block 2 44 returns to its original position under the elastic action of the spring 46, and the sealing cover 1 21 is locked. The setting of the driving mechanism can automatically open the sealing cover 1 21 and the sealing cover 2 19 after the transport shell 11 moves to the target position, without manual opening, saving time and effort, and improving the automation effect of the biological sample cryopreservation tube low-temperature tube picking workstation of the present invention.

[0049] Example 4

[0050] On the basis of Example 3, Figure 1-Figure 7 As shown, the pipe lifting mechanism includes a fixing plate 50, which is fixedly arranged on the rear side of the upper end of the second mounting plate 14, and the third rotating shaft 47 is symmetrically arranged on the left and right sides of the second mounting plate 14, and the third rotating shaft 47 is fixedly connected to the transmission wheel 48, and the transmission wheels 48 on the left and right sides are connected by a connecting belt 49, and the third rotating shaft 47 on the left side is fixedly connected to the driving motor;

[0051] The tube picking mechanism also includes a sliding shaft 51, the sliding shaft 51 is slidably connected to the sliding groove 53 of the sliding block 52, the sliding block 52 is slidably connected to the mounting plate 2 14 along the left and right directions, the sliding block 52 is fixedly connected to the electric telescopic rod 1 54, the electric telescopic rod 1 54 is fixedly connected to the fixed block 55, the fixed block 55 is fixedly connected to the fixed end of the electric telescopic rod 25, the movable end of the electric telescopic rod 25 is fixedly connected to the sample box manipulator and the electric telescopic rod 3 16, the movable end of the electric telescopic rod 3 16 is fixedly connected to the electric telescopic rod 4 56 and the top block 38, and the electric telescopic rod 4 56 is fixedly connected to the test tube manipulator 24;

[0052] The fixing block 55 is disposed corresponding to the second opening 39 and the first opening 13 .

[0053] The beneficial effects of the above technical solution are:

[0054] When the pipe lifting mechanism is working, the driving motor drives the rotating shaft 3 47 on the left to rotate, and the rotating shaft 3 47 on the left drives the connecting belt 49 to move through the transmission wheels 48 on the left and right sides, and the connecting belt 49 drives the sliding shaft 51 to move, and the sliding shaft 51 can slide up and down along the sliding groove 53, thereby driving the sliding block 52 to slide left and right along the mounting plate 2 14, and the sliding block 52 drives the electric telescopic rod 1 54 to move left and right. The extension of the electric telescopic rod 1 54 can drive the fixed block 55 to move forward and backward, thereby achieving the purpose of free movement of the fixed block 55 in the left and right directions and the front and back directions. After the fixed block 55 moves to the target position, the extension of the electric telescopic rod 2 25 can be controlled. The electric telescopic rod three 16 can be extended and retracted to drive the sample box manipulator and the electric telescopic rod four 16 to move up and down. The sample box manipulator is used to transfer the sample box to be sampled between the liquid nitrogen tank 6 and the transport shell 11. The extension and retraction of the electric telescopic rod three 16 can drive the top block 38 and the electric telescopic rod four 56 to move left and right. The extension and retraction of the electric telescopic rod four 56 can drive the test tube manipulator 24 to move up and down, so that the distance between the top block 38 and the test tube manipulator 24 along the up and down direction is adjustable. The top block 38 and the test tube manipulator 24 are arranged correspondingly up and down. The sample test tube to be sampled in the biological sample box to be sampled can be first ejected by the top block 38, and then the sample test tube to be sampled can be clamped by the test tube manipulator 24 to complete the transfer step.

[0055] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. Biological sample cryopreservation tube low temperature tube selection workstation, characterized by: The mobile base (1) comprises a storage mechanism and a transfer mechanism installed in the middle of the mobile base (1), and the storage mechanism and the transfer mechanism are distributed on the left and right. A sealing mechanism is provided above the storage mechanism and the transfer mechanism, and the sealing mechanism is installed on the front side of the upper end of the mobile base (1). A pipe lifting mechanism is installed on the rear side of the upper end of the mobile base (1); The pipe lifting mechanism comprises a fixing plate (50), the fixing plate (50) being fixedly arranged on the rear side of the upper end of the second mounting plate (14), the second mounting plate (14) being symmetrically provided with a rotating shaft (47) on the left and right sides, the rotating shaft (47) being fixedly connected to the transmission wheel (48), the transmission wheels (48) on the left and right sides being connected via a connecting belt (49), and the rotating shaft (47) on the left side being fixedly connected to the driving motor; It also includes a sliding shaft (51), the sliding shaft (51) is slidably connected to the sliding groove (53) of the sliding block (52), the sliding block (52) is slidably connected to the second mounting plate (14) along the left-right direction, the sliding block (52) is fixedly connected to the first electric telescopic rod (54), the first electric telescopic rod (54) is fixedly connected to the fixed block (55), the fixed block (55) is fixedly connected to the fixed end of the second electric telescopic rod (25), the movable end of the second electric telescopic rod (25) is fixedly connected to the sample box manipulator and the third electric telescopic rod (16), the movable end of the third electric telescopic rod (16) is fixedly connected to the fourth electric telescopic rod (56) and the top block (38), and the fourth electric telescopic rod (56) is fixedly connected to the test tube manipulator (24); The transfer mechanism comprises a mounting seat (4), the mounting seat (4) being fixedly arranged on the left side of the upper end of the first mounting plate (3), a transfer port being arranged on the baffle plates corresponding to the front and rear sides of the mounting seat (4), conveying rollers (5) being symmetrically arranged on the front and rear sides of the upper end of the mounting seat (4), a transfer conveyor belt being connected between the conveying rollers (5) on the front and rear sides, a transfer shell (11) being installed on the transfer conveyor belt, the upper end of the transfer shell (11) being an open structure, and the upper part of the transfer shell (11) being slidably connected to the sliding groove (15) at the lower end of the second mounting plate (14); The sealing mechanism comprises an opening (13) and a second opening (39) which are arranged through the upper end of the second mounting plate (14); the opening (13) is arranged correspondingly on the upper side of the transfer shell (11); the opening (39) is arranged correspondingly on the upper side of the liquid nitrogen tank (6); the opening (39) is matched with the second sealing block (20); the second sealing block (20) is fixedly connected with the second sealing cover (19); the second sealing cover (19) is fixedly connected with the second rotating shaft (18); the second rotating shaft (18) is rotatably connected with the second supporting seat (36) and the second supporting plate (58); a second torsion spring (57) is fixedly arranged between the second supporting plate (58) and the second rotating shaft (18); and the second torsion spring (57) is sleeved on the second rotating shaft (18). ), the support seat 2 (36) is fixedly arranged on the right side of the upper end of the mounting plate 2 (14), the opening 1 (13) is correspondingly arranged on the upper end of the transfer shell (11), the opening 1 (13) is correspondingly matched with the sealing block 1 (22), the sealing block 1 (22) is fixedly connected with the sealing cover 1 (21), the sealing cover 1 (21) is fixedly connected with the rotating shaft 1 (29), the rotating shaft 1 (29) is rotatably connected with the support seat 1 (42) and the support plate 1 (40), a torsion spring 1 (41) is fixedly arranged between the support plate 1 (40) and the rotating shaft 1 (29), and the torsion spring 1 (41) is sleeved on the rotating shaft 1 (29), and the support seat 1 (42) is fixedly arranged on the left side of the upper end of the mounting plate 2 (14); A positioning opening (45) is provided at the rear side of the opening (13), a positioning block (43) is provided at the front end of the positioning opening (45) for sliding along the up-down direction, an inclined end of the positioning block (43) is slidably connected to an inclined end of a positioning block (44), the positioning block (44) and the positioning opening (45) are slidably connected along the front-back direction, a spring (46) is fixedly provided between the positioning block (44) and the positioning opening (45), and the lower end of the positioning block (44) is in contact with the upper end of the sealing cover (21); The sealing mechanism and the transfer mechanism are connected via a driving mechanism, the driving mechanism comprising a motor (17), the motor (17) being fixedly arranged at the left end of the second mounting plate (14), the motor (17) being fixedly connected to the motor shaft (23), the motor shaft (23) being fixedly connected to the second pulley (26), the second pulley (26) being fixedly connected to the first bevel gear (27) via a torsion spring rod, the second pulley (26) being connected to the first pulley (9) via the conveyor belt (12), the first pulley (9) being fixedly connected to the driving shaft (10) via a speed increasing mechanism, and the driving shaft (10) being fixedly connected to the conveyor roller (5) on one side; The bevel gear 1 (27) meshes with the bevel gear 2 (28), the bevel gear 2 (28) is fixedly connected with the rotating shaft 1 (29), the rotating shaft 1 (29) is fixedly connected with the gear 1 (30), the gear 1 (30) meshes with the gear 2 (31), the gear 2 (31) is fixedly connected with the pulley 3 (32) through the connecting shaft 1, the pulley 3 (32) is connected with the pulley 4 (34) through the conveyor belt 2 (33), the pulley 4 (34) is connected with the pulley 5 (37) through the conveyor belt 3 (35), the pulley 5 (37) is fixedly connected with the rotating shaft 2 (18) through the connecting shaft 2, the mounting plate 2 (14) is provided with a cavity for placing the gear 2 (31), the pulley 3 (32), the conveyor belt 2 (33) and the pulley 4 (34), and the bevel gear 1 (27) is an incomplete bevel gear.

2. The biological sample cryopreservation tube low temperature tube selection workstation according to claim 1, characterized in that: The mobile base (1) comprises a second mounting plate (14), four legs are mounted at the top corners of the lower end of the second mounting plate (14), baffles are fixedly provided between adjacent legs, wheels (2) are mounted at the lower ends of the legs, and a first mounting plate (3) is fixedly provided in the middle of the four legs.

3. The biological sample cryogenic tube low temperature tube selection workstation according to claim 2, characterized in that: The storage mechanism comprises a liquid nitrogen tank (6), the upper end of the liquid nitrogen tank (6) is an open structure, the liquid nitrogen tank (6) is fixedly arranged on the upper right side of the mounting plate 1 (3), a storage cavity (7) is arranged inside the liquid nitrogen tank (6), a placement plate (8) is installed in the storage cavity (7), the placement plate (8) is an L-shaped plate, a plurality of placement grooves (59) are arranged on the placement plate (8), and the placement grooves (59) are used to place the target biological sample box.

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