Pipe lifting device

Abstract

The present invention belongs to the technical field of tube picking equipment, and specifically provides a tube picking device. It aims to solve the problem that the tube-lifting mechanism in the existing tube-lifting device can only lift one cryotube at a time, resulting in low tube-lifting efficiency. To this end, the tube-lifting device of the present invention includes a tube-lifting barrel, a tray, a standard cryobox, a biological sample cryobox, a driving mechanism and a tube-lifting assembly. The top wall of the tube-lifting barrel is provided with a tube-lifting opening; the tray is installed in the tube-lifting barrel, and the tray is provided with a first accommodating cavity and a second accommodating cavity; the standard cryobox is placed in the first accommodating cavity; the biological sample cryobox is placed in the second accommodating cavity; the driving mechanism can drive the tube-lifting assembly to move up and down in the vertical direction, and the tube-lifting assembly can simultaneously lift up the cryotubes in the biological sample cryobox and the cryotubes in the standard cryobox during the vertical upward movement. The tube-lifting assembly in the tube-lifting device can lift up multiple cryotubes at the same time, which can improve the tube-lifting efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of pipe lifting equipment, and specifically provides a pipe lifting device. Background Art

[0002] In the biomedical field, cryopreservation equipment is used to store biological samples such as blood, vaccines, and bacterial and viral strains at low temperatures, keeping them in liquid nitrogen for long-term preservation. The equipment contains multiple sample boxes, each containing multiple test tubes. The samples to be stored are then placed in cryotubes.

[0003] Most current cryopreservation equipment is used to store and remove entire sample boxes. When storing partial cryotubes, a tube picking system is required to pick tubes from the cryobox and transfer them to the target sample box. The existing tube picking system usually includes a tube pushing device to facilitate the ejection of the cryotube that needs to be picked.

[0004] The existing tube-lifting mechanism has only one push rod, which can only lift one cryotube at a time. When multiple cryotubes need to be transferred, the tube-lifting mechanism needs to be operated multiple times to complete the tube transfer, which takes a long time and has low tube transfer efficiency.

[0005] Accordingly, this field requires a new technical solution to solve the above technical problems. Summary of the Invention

[0006] The present invention aims to solve the above technical problem, that is, to solve the problem that the pipe lifting mechanism in the existing pipe lifting device can only lift one frozen pipe at a time, resulting in low pipe lifting efficiency.

[0007] The present invention provides a tube picking device, which includes: a tube picking barrel, a tube picking opening being provided on the top wall of the tube picking barrel; a tray being fixedly installed in the tube picking barrel and located below the tube picking opening, a first accommodating cavity and a second accommodating cavity being provided on the tray; a standard freezing box being placed in the first accommodating cavity; a biological sample freezing box being placed in the second accommodating cavity, and the storage quantity of the biological sample freezing box is greater than the storage quantity of the standard freezing box; a driving mechanism being installed on the outside of the tube picking barrel; and a jacking tube assembly being installed in the tube picking barrel, one end of which passes through the top wall of the tube picking barrel and is connected to the driving mechanism, the driving mechanism being capable of driving the jacking tube assembly to move up and down in a vertical direction, and the jacking tube assembly being capable of simultaneously jacking up the freezing tubes in the biological sample freezing box and the freezing tubes in the standard freezing box during the vertical upward movement.

[0008] In the preferred technical solution of the above-mentioned tube lifting device, the tube lifting assembly includes a first tube lifting assembly and a second tube lifting assembly, the driving mechanism is connected to the first tube lifting assembly and the second tube lifting assembly and can respectively drive the first tube lifting assembly and the second tube lifting assembly to move up and down in the vertical direction relative to the tube lifting bucket, the driving mechanism keeps the second tube lifting assembly stationary while driving the first tube lifting assembly to move up and down in the vertical direction, and the driving mechanism keeps the first tube lifting assembly stationary while driving the second tube lifting assembly to move up and down in the vertical direction; the first tube lifting assembly and the second tube lifting assembly can simultaneously lift up some of the freezing tubes in the biological sample freezing box and some of the freezing tubes in the standard freezing box during the vertical upward movement.

[0009] In the preferred technical solution of the above-mentioned tube lifting device, the first tube lifting assembly includes a first connecting rod, a first transmission assembly, a first top plate, and a plurality of first push rods, a plurality of second push rods and a first guide structure arranged on the first top plate, and the tray is provided with a second guide structure at a position corresponding to the first guide structure; the first connecting rod is vertically arranged and passes through the top wall of the tube lifting barrel, the driving mechanism is connected to the top end of the first connecting rod and can drive the first connecting rod to move up and down in the vertical direction, the bottom end of the first connecting rod is connected to the first top plate through the first transmission assembly, and the plurality of first push rods are respectively located at a plurality of positions in the standard freezing box. The plurality of second ejector rods are respectively located below some of the test tube placement holes in the biological sample freezing box and are respectively arranged correspondingly thereto. In the process of the driving mechanism driving the first connecting rod to move downward, the first connecting rod simultaneously drives the first top plate upward through the first transmission assembly, and the first top plate moves in a vertical direction under the cooperation of the first guide structure and the second guide structure, so that the plurality of first ejector rods and the plurality of second ejector rods respectively lift up the plurality of freezing tubes in the standard freezing box and the plurality of freezing tubes in the biological sample freezing box at the same time.

[0010] In the preferred technical solution of the above-mentioned tube lifting device, the second tube lifting assembly includes a second connecting rod, a second transmission assembly, a second top plate, and a plurality of third push rods, a plurality of fourth push rods and a third guide structure arranged on the second top plate, and the tray is provided with a fourth guide structure at a position corresponding to the third guide structure; the second connecting rod is vertically arranged and passes through the top wall of the tube lifting barrel, and the driving mechanism is connected to the top end of the second connecting rod and can drive the second connecting rod to move up and down in the vertical direction, and the bottom end of the second connecting rod is connected to the second top plate through the second transmission assembly, and the plurality of third push rods are respectively located below the plurality of test tube placement holes in the standard freezing box and are arranged one-to-one with them, and a plurality of The fourth push rods are respectively located below the multiple test tube placement holes in the biological sample freezing box and are arranged one-to-one correspondingly thereto. In the process of the driving mechanism driving the second connecting rod to move downward, the second connecting rod simultaneously drives the second top plate to move upward through the second transmission assembly, and under the cooperation of the third guide structure and the fourth guide structure, the second top plate is moved in the vertical direction, so that the multiple third push rods and the multiple fourth push rods respectively lift up the multiple freezing tubes in the standard freezing box and the multiple freezing tubes in the biological sample freezing box at the same time; the second top plate is located below the first top plate, and the third push rod and the fourth push rod are arranged through the first top plate.

[0011] In the preferred technical solution of the above-mentioned tube picking device, the test tube placement holes in the standard freezing box are distributed in multiple rows or columns, multiple first push rods correspond to the test tube placement holes in odd rows or odd columns in the standard freezing box, and multiple third push rods correspond to the test tube placement holes in even rows or even columns in the standard freezing box; the test tube placement holes in the biological sample freezing box are distributed in multiple rows or columns, multiple second push rods correspond to the test tube placement holes in odd rows or odd columns in the biological sample freezing box, and multiple fourth push rods correspond to the test tube placement holes in even rows or even columns in the standard freezing box.

[0012] In the preferred technical solution of the above-mentioned pipe lifting device, the first transmission assembly includes a first transmission joint, a second transmission joint, a third transmission joint and a first support arm, the first end of the first transmission joint is pivotally connected to the bottom end of the first connecting rod, the second end of the first transmission joint is pivotally connected to the first end of the second transmission joint, the second end of the second transmission joint is pivotally connected to the first end of the third transmission joint, the second end of the third transmission joint is pivotally connected to the first top plate, the second transmission joint is horizontally arranged and the first connecting end is arranged in the middle position of the second transmission joint, one end of the first support arm is fixedly connected to the tray, and the other end of the first support arm is fixed to the first connecting rod. The first end is pivotally connected to the bottom end of the second connecting rod, the second end of the fifth transmission joint is pivotally connected to the first end of the sixth transmission joint, the second end of the sixth transmission joint is pivotally connected to the first end of the seventh transmission joint, the second end of the seventh transmission joint is pivotally connected to the second top plate, the sixth transmission joint is horizontally arranged and a second connecting end is arranged at the middle position of the sixth transmission joint, one end of the second support arm is fixedly connected to the tray, and the other end of the second support arm is pivotally connected to the second connecting end.

[0013] In the preferred technical solution of the above-mentioned pipe picking device, the driving mechanism includes a driving component, a first turntable and a second turntable, the driving component is connected to the first turntable and the second turntable and can drive the first turntable and the second turntable to rotate simultaneously, the first turntable is provided with a first semicircular groove and a first linear groove connected to the first semicircular groove, the center of the first semicircular groove coincides with the rotation axis of the first turntable, the top of the first connecting rod is fixedly provided with a first sliding component, the first sliding component is located at the intersection of the first semicircular groove and the first linear groove and can slide along the first semicircular groove and the first linear groove, the second turntable is provided with a second semicircular groove and a second linear groove connected to the second semicircular groove, the center of the second semicircular groove coincides with the rotation axis of the second turntable, the top of the second connecting rod is fixedly provided with a second sliding component, the second sliding component is located at the intersection of the first semicircular groove and the first linear groove The intersection of the second semicircular groove and the second linear groove is capable of sliding along the second semicircular groove and the second linear groove, and when the driving member drives the first turntable and the second turntable to rotate along the first direction, the first sliding member slides in the first linear groove along the length direction of the first linear groove, thereby driving the first connecting rod to move downward, and at the same time, the second sliding member slides in the second semicircular groove along the second semicircular groove and keeps the second connecting rod stationary; when the driving member drives the first turntable and the second turntable to rotate along the second direction, the first sliding member slides in the first semicircular groove along the first semicircular groove and keeps the first connecting rod stationary, and at the same time, the second sliding member slides in the second linear groove along the length direction of the second linear groove, thereby driving the second connecting rod to move downward; wherein, the first direction is opposite to the second direction.

[0014] In the preferred technical solution of the above-mentioned pipe picking device, the driving mechanism also includes a connecting shaft, one end of which is fixedly connected to the driving component, and the first turntable and the second turntable are both fixedly connected to the connecting shaft. The driving component can drive the connecting shaft to rotate and drive the first turntable and the second turntable to rotate synchronously.

[0015] In a preferred technical solution of the above-mentioned tube picking device, two first accommodating cavities are provided, and two standard freezing boxes are provided and are respectively located in the two first accommodating cavities.

[0016] In the preferred technical solution of the above-mentioned tube picking device, the storage quantity of the biological sample freezing box is greater than the sum of the storage quantities of the two standard freezing boxes; and / or the area of ​​the top view surface of the biological sample freezing box is equal to the sum of the areas of the top view surfaces of the two standard freezing boxes.

[0017] When the above technical solution is adopted, the tube picking device of the present invention can simultaneously lift up the cryotubes located in the biological sample freezing box and the cryotubes located in the standard freezing box in the process of moving the tube pushing assembly upward in the vertical direction through the driving mechanism. This arrangement enables the tube pushing assembly to simultaneously lift up multiple cryotubes in one tube pushing operation, thereby improving the tube picking efficiency of the tube picking device; in addition, the tray of the tube picking device of the present invention contains both the standard freezing box and the biological sample freezing box, and the tube pushing assembly can simultaneously lift up the cryotubes in the biological sample freezing box and the cryotubes in the standard freezing box when pushing the tubes, so that the tube picking device of the present invention can realize the transfer of cryotubes between the biological sample freezing box and the standard freezing box, as well as the transfer of cryotubes between different biological sample freezing boxes or different standard freezing boxes, thereby improving the scope of use.

[0018] Furthermore, the jacking tube assembly is provided as a first jacking tube assembly and a second jacking tube assembly. The first jacking tube assembly and the second jacking tube assembly can simultaneously lift up some of the cryotubes located in the biological sample freezing box and some of the cryotubes located in the standard freezing box during the vertical upward movement. The driving mechanism can respectively drive the first jacking tube assembly and the second jacking tube assembly to move up and down in the vertical direction, wherein the driving mechanism simultaneously keeps the second jacking tube assembly stationary during the process of driving the first jacking tube assembly to move up and down in the vertical direction, and simultaneously keeps the first jacking tube assembly stationary during the process of driving the second jacking tube assembly to move up and down in the vertical direction. This arrangement enables the first jacking tube assembly and the second jacking tube assembly to lift up their corresponding cryotubes respectively, and the two do not operate at the same time, so as to prevent conflicts between the two. In addition, the number of cryotubes lifted by a single jacking tube assembly is reduced, making the jacking operation more convenient.

[0019] Furthermore, the first pushing tube assembly includes a first connecting rod, a first transmission assembly, a first top plate, and a plurality of first pushing rods, a plurality of second pushing rods and a first guide structure arranged on the first top plate, and a second guide structure is provided at a position corresponding to the tray and the first guide structure, wherein the top end of the first connecting rod passes through the top wall of the tube lifting barrel and is connected to the driving mechanism, and the bottom end of the first connecting rod is connected to the first top plate through the first transmission assembly. In this way, when the driving mechanism drives the first connecting rod to move downward, the first transmission assembly drives the first top plate, the first pushing rod and the second pushing rod to move vertically upward under the cooperation of the first guide structure and the second guide structure, thereby simultaneously lifting up the plurality of freezing tubes in the standard freezing box and the plurality of freezing tubes in the biological sample freezing box. The structure is simple and the batch tube pushing effect is good.

[0020] Furthermore, the second pushing tube assembly includes a second connecting rod, a second transmission assembly, a second top plate, and a plurality of third pushing rods, a plurality of fourth pushing rods and a third guide structure arranged on the second top plate, and a fourth guide structure is provided at a position corresponding to the tray and the third guide structure, wherein the top end of the second connecting rod passes through the top wall of the tube lifting barrel and is connected to the driving mechanism, and the bottom end of the second connecting rod is connected to the second top plate through the second transmission assembly. In this way, when the driving mechanism drives the second connecting rod to move downward, the second transmission assembly drives the second pushing rod, the third pushing rod and the fourth pushing rod to move vertically upward under the cooperation of the third guide structure and the fourth guide structure, thereby simultaneously lifting up the plurality of freezing tubes in the standard freezing box and the plurality of freezing tubes in the biological sample freezing box. The structure is simple and the batch tube pushing effect is good.

[0021] Furthermore, the first push rod corresponds to the test tube placement holes in odd rows or odd columns in the standard freezing box, the second push rod corresponds to the test tube placement holes in odd rows or odd columns in the biological sample freezing box, the third push rod corresponds to the test tube placement holes in even rows or even columns in the standard freezing box, and the fourth push rod corresponds to the test tube placement holes in even rows or even columns in the biological sample freezing box. With this arrangement, after the first push tube assembly and the second push tube assembly lift the corresponding freezing tubes, sufficient tube picking space is reserved between the freezing tubes in different rows or columns, which can facilitate the smooth tube picking operation of the lifted freezing tubes. It is suitable for freezing boxes with different storage densities, and is more suitable for use with freezing boxes with high storage density.

[0022] Furthermore, the first transmission assembly is configured as a first transmission joint, a second transmission joint, a third transmission joint and a first support arm, which has a simple structure, is easy to assemble and use, and has a good transmission effect.

[0023] Furthermore, the second transmission assembly is configured as a fifth transmission joint, a sixth transmission joint, a seventh transmission joint and a second support arm, which has a simple structure, is convenient for assembly and use, and has a good transmission effect.

[0024] Furthermore, the driving mechanism includes a driving member, a first turntable and a second turntable, the driving member can simultaneously drive the first turntable and the second turntable to rotate, the first turntable is provided with a first semicircular groove and a first linear groove, the top end of the first connecting rod is provided with a first sliding member, the first sliding member is located at the intersection of the first semicircular groove and the first linear groove, the second turntable is provided with a second semicircular groove and a second linear groove, the top end of the second connecting rod is provided with a second sliding member, the second sliding member is located at the intersection of the second semicircular groove and the second linear groove, wherein, when the driving member drives the first turntable and the second turntable to rotate along the first direction, the first sliding member slides in the first linear groove The cam is secured to the first and second rotating discs and is easily removable so that the cam can be easily retracted while the second rotating disc is in a state of being retracted.

[0025] Furthermore, the driving component is connected to the first turntable and the second turntable via a connecting shaft. The driving component drives the first turntable and the second turntable to rotate synchronously via the connecting shaft, which can improve the driving stability and facilitate use.

[0026] Furthermore, two first accommodating chambers are provided to accommodate two standard freezing boxes, thereby increasing the accommodating quantity of the tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the pipe lifting device of the present invention;

[0029] Figure 2 This is a schematic diagram of the three-dimensional structure of the pipe lifting device of the present invention after the pipe lifting bucket is hidden;

[0030] Figure 3 This is a schematic diagram of the connection between the drive mechanism and the jacking assembly of the present invention. Figure 1 ;

[0031] Figure 4 This is a schematic diagram of the connection between the drive mechanism and the jacking assembly of the present invention. Figure 2 ;

[0032] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure at A in the middle;

[0033] Figure 6 It is a structural schematic diagram of the driving mechanism of the present invention;

[0034] Figure 7 yes Figure 6 Cross-sectional view in the AA direction;

[0035] Figure 8 yes Figure 6 Cross-sectional view in the middle BB direction;

[0036] Figure 9 It is a structural schematic diagram of a tray of the present invention.

[0037] List of reference numerals:

[0038] 1. Pipe picking bucket; 11. Pipe picking mouth;

[0039] 2. Tray; 21. First accommodating cavity; 22. Second accommodating cavity; 23. Second guide structure; 24. Fourth guide structure; 25. First elastic positioning member; 26. Second elastic positioning member;

[0040] 3. Standard freezing box;

[0041] 4. Biological sample freezing box;

[0042] 5. Driving mechanism; 51. Driving member; 52. First rotary disk; 521. First semicircular groove; 522. First linear groove; 53. Second rotary disk; 531. Second semicircular groove; 532. Second linear groove; 54. Connecting shaft;

[0043] 6. Jacking pipe assembly; 61. First jacking pipe assembly; 611. First connecting rod; 6111. First sliding member; 612. First transmission assembly; 6121. First transmission joint; 6122. Second transmission joint; 61221. First connecting end; 6123. Third transmission joint; 6124. First support arm; 613. First top plate; 614. First push rod; 615. Second push rod; 616. First guide structure; 62. Second jacking pipe assembly; 621. Second connecting rod; 6211. Second sliding member; 622. Second transmission assembly; 6221. Fifth transmission joint; 6222. Sixth transmission joint; 62221. Second connecting end; 6223. Seventh transmission joint; 6224. Second support arm; 623. Second top plate; 624. Third push rod; 625. Fourth push rod; 626. Third guide structure. DETAILED DESCRIPTION

[0044] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0045] It should be noted that, in the description of the present invention, terms such as "above," "below," "top," and "bottom" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and are not intended to indicate or imply that the device or component described must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections via other components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0047] Based on the problem pointed out in the background technology that the tube-lifting mechanism in the existing tube-lifting device can only lift one cryotube at a time, resulting in low tube-lifting efficiency. The tube-lifting device of the present invention is provided with a tray, on which a biological sample cryobox and a standard cryobox are placed. The tube-lifting assembly can simultaneously lift up the cryotubes in the biological sample cryobox and the cryotubes in the standard cryobox during vertical upward movement, thereby lifting multiple cryotubes, which can effectively improve the tube-lifting efficiency when picking tubes in batches. In addition, the tube-lifting device of the present invention can transfer cryotubes between the biological sample cryobox and the standard cryobox, as well as transfer cryotubes between different standard cryoboxes, thereby realizing tube-lifting operations between different cryoboxes, and has a wide range of uses and is easy to operate.

[0048] Specifically, if Figure 1 and Figure 2 As shown, the tube picking device of the present invention includes a tube picking bucket 1, a tray 2, a standard freezing box 3, a biological sample freezing box 4, a driving mechanism 5 and a tube jacking assembly 6.

[0049] Among them, a tube picking port 11 is provided on the top wall of the tube picking barrel 1, and the tray 2 is fixedly installed in the tube picking barrel 1 and is located below the tube picking port 11. A first accommodating chamber 21 and a second accommodating chamber 22 are provided on the tray 2. The standard freezing box 3 is placed in the first accommodating chamber 21, and the biological sample freezing box 4 is placed in the second accommodating chamber 22. The storage quantity of the biological sample freezing box 4 is greater than the storage quantity of the standard freezing box 3. The driving mechanism 5 is installed on the outside of the tube picking barrel 1, and the jacking pipe assembly 6 is installed in the tube picking barrel 1, and one end of the jacking pipe assembly 6 passes through the top wall of the tube picking barrel 1 and is connected to the driving mechanism 5. The driving mechanism 5 can drive the jacking pipe assembly 6 to move up and down in the vertical direction. During the vertical upward movement, the jacking pipe assembly 6 can simultaneously lift up the freezing tubes in the biological sample freezing box 4 and the freezing tubes in the standard freezing box 3.

[0050] When the tube picking device of the present invention is in use, the driving mechanism 5 is operated to drive the jacking tube assembly 6 to move up and down in the vertical direction, so that in the process of the jacking tube assembly 6 moving vertically upward, the cryotubes located in the biological sample freezing box 4 and the cryotubes located in the standard freezing box 3 can be simultaneously lifted upward, thereby enabling the simultaneous tube picking operation of the biological sample freezing box 4 and the standard freezing box 3, and the jacking tube assembly 6 can lift the cryotubes in batches, thereby saving the time required for jacking in batch tube picking operations and improving the tube picking efficiency. In addition, the tray 2 in the tube picking barrel 1 of the tube picking device of the present invention can simultaneously place the biological sample freezing box 4 and the standard freezing box 3, so that the tube picking device can be applied to the tube picking operation of the biological sample freezing box 4 with high-density storage, and is also applicable to the tube picking operation of the standard freezing box 3, with a wide range of applications and more convenient use.

[0051] It should be noted that the standard freezing box 3 in the present invention is the SBS standard freezing box currently commonly used on the market, and the biological sample freezing box 4 in the present invention is a high-density storage freezing box independently developed by the manufacturer to increase the storage quantity. Its specific structure and storage quantity can be set by oneself and are not limited here.

[0052] Preferably, if Figures 3 to 5As shown, the jacking tube assembly 6 includes a first jacking tube assembly 61 and a second jacking tube assembly 62. The driving mechanism 5 is connected to the first jacking tube assembly 61 and the second jacking tube assembly 62, and can respectively drive the first jacking tube assembly 61 and the second jacking tube assembly 62 to move up and down in the vertical direction relative to the tube lifting bucket 1. The driving mechanism 5 keeps the second jacking tube assembly 62 stationary while driving the first jacking tube assembly 61 to move up and down in the vertical direction. The driving mechanism 5 keeps the first jacking tube assembly 61 stationary while driving the second jacking tube assembly 62 to move up and down in the vertical direction. The first jacking tube assembly 61 and the second jacking tube assembly 62 can simultaneously lift up some of the freezing tubes located in the biological sample freezing box 4 and some of the freezing tubes located in the standard freezing box 3 during the vertical upward movement.

[0053] The jacking pipe assembly 6 is divided into two parts, a first jacking pipe assembly 61 and a second jacking pipe assembly 62. The driving component 51 can respectively drive the first jacking pipe assembly 61 and the second jacking pipe assembly 62 to move up and down in the vertical direction relative to the pipe lifting bucket 1. When the first jacking pipe assembly 61 lifts its corresponding freezing tube, the second jacking pipe assembly 62 does not perform the jacking operation. When the second jacking pipe assembly 62 lifts its corresponding freezing tube, the first jacking pipe assembly 61 does not perform the jacking operation. The jacking operations of the first jacking pipe assembly 61 and the second jacking pipe assembly 62 are performed separately, so that the jacking operation can be performed in parts for easy positioning and use.

[0054] It should be noted that the present invention does not impose any restrictions on the specific structure of the first jacking tube assembly 61 and the second jacking tube assembly 62. As long as the first jacking tube assembly 61 and the second jacking tube assembly 62 can simultaneously lift up some of the cryotubes located in the biological sample freezing box 4 and some of the cryotubes located in the standard freezing box 3 during the vertical upward movement, in actual applications, those skilled in the art can set the specific structure of the first jacking tube assembly 61 and the second jacking tube assembly 62 according to actual needs. Any adjustments and changes to the specific structure of the first jacking tube assembly 61 and the second jacking tube assembly 62 do not deviate from the basic principles of the present invention and should be limited to the scope of protection of the present invention.

[0055] Preferably, if Figures 3 to 5 As shown, the first top pipe assembly 61 includes a first connecting rod 611, a first transmission assembly 612, a first top plate 613, and a plurality of first top rods 614, a plurality of second top rods 615 and a first guide structure 616 arranged on the first top plate 613, and the tray 2 is provided with a second guide structure 23 at a position corresponding to the first guide structure 616.

[0056] Among them, the first connecting rod 611 is vertically arranged and passes through the top wall of the tube picking bucket 1. The driving mechanism 5 is connected to the top end of the first connecting rod 611 and can drive the first connecting rod 611 to move up and down in the vertical direction. The bottom end of the first connecting rod 611 is connected to the first top plate 613 through the first transmission assembly 612. Multiple first push rods 614 are respectively located below the multiple test tube placement holes in the standard freezing box 3 and are arranged one-to-one with them. Multiple second push rods 615 are respectively located below some test tube placement holes in the biological sample freezing box 4 and are arranged one-to-one with them.

[0057] When the driving mechanism 5 drives the first connecting rod 611 to move downward, the first connecting rod 611 simultaneously drives the first top plate 613 to move upward through the first transmission assembly 612, and the first top plate 613 moves in the vertical direction under the cooperation of the first guide structure 616 and the second guide structure 23, so that the multiple first top rods 614 and the multiple second top rods 615 respectively lift up the multiple cryotubes located in the standard cryobox 3 and the multiple cryotubes located in the biological sample cryobox 4 at the same time.

[0058] The top end of the first connecting rod 611 passes through the top wall of the tube picking barrel 1 and is connected to the driving mechanism 5. The bottom end of the first connecting rod 611 is connected to the first top plate 613 through the first transmission assembly 612. Therefore, in the process of the driving mechanism 5 driving the first connecting rod 611 to move downward, the first transmission assembly 612 can drive the first top plate 613 to move upward, and the first top plate 613 is moved vertically upward under the cooperation of the first guide structure 616 and the second guide structure 23, so that multiple first push rods 614 and multiple second push rods 615 can respectively lift up multiple freezing tubes located in the standard freezing box 3 and multiple freezing tubes located in the biological sample freezing box 4 at the same time. The overall structure is simple and easy to assemble and use.

[0059] It should be noted that the present invention does not impose any restrictions on the specific structural shapes of the first guide structure 616 and the second guide structure 23. As long as the first guide structure 616 and the second guide structure 23 cooperate to be able to move vertically during the up and down movement of the first top plate 613, in actual applications, those skilled in the art can set the specific structural shapes of the first guide structure 616 and the second guide structure 23 according to actual needs. For example, the first guide structure 616 can be set as a guide column extending vertically upward, and the second guide structure 23 can be set as a guide hole, with the guide column located within the guide hole. Alternatively, the second guide structure 23 can be set as a guide column extending vertically downward, and the first guide structure 616 can be set as a guide hole, with the guide column located within the guide hole, and so on. Such adjustments and changes to the specific structural shapes of the first guide structure 616 and the second guide structure 23 do not deviate from the basic principles of the present invention and should be limited within the scope of protection of the present invention.

[0060] Preferably, if Figures 3 to 5 As shown, the second top tube assembly 62 includes a second connecting rod 621, a second transmission assembly 622, a second top plate 623, and a plurality of third top rods 624, a plurality of fourth top rods 625 and a third guide structure 626 arranged on the second top plate 623, and the tray 2 is provided with a fourth guide structure 24 at a position corresponding to the third guide structure 626.

[0061] Among them, the second connecting rod 621 is vertically arranged and passes through the top wall of the tube picking bucket 1. The driving mechanism 5 is connected to the top end of the second connecting rod 621 and can drive the second connecting rod 621 to move up and down in the vertical direction. The bottom end of the second connecting rod 621 is connected to the second top plate 623 through the second transmission assembly 622. Multiple third push rods 624 are respectively located below the multiple test tube placement holes in the standard freezing box 3 and are arranged one-to-one with them. Multiple fourth push rods 625 are respectively located below the multiple test tube placement holes in the biological sample freezing box 4 and are arranged one-to-one with them.

[0062] When the driving mechanism 5 drives the second connecting rod 621 to move downward, the second connecting rod 621 simultaneously drives the second top plate 623 to move upward through the second transmission assembly 622, and the second top plate 623 moves in the vertical direction under the cooperation of the third guide structure 626 and the fourth guide structure 24, so that the multiple third push rods 624 and the multiple fourth push rods 625 respectively push up the multiple cryotubes located in the standard cryobox 3 and the multiple cryotubes located in the biological sample cryobox 4 at the same time. The second top plate 623 is located below the first top plate 613, and the third push rod 624 and the fourth push rod 625 are arranged through the first top plate 613.

[0063] The top end of the second connecting rod 621 passes through the top wall of the tube picking barrel 1 and is connected to the driving mechanism 5, and the bottom end of the second connecting rod 621 is connected to the second top plate 623 through the second transmission assembly 622. Therefore, in the process of the driving mechanism 5 driving the second connecting rod 621 to move downward, the second top plate 623 can be driven to move upward through the second transmission assembly 622, and the second top plate 623 is moved vertically upward under the cooperation of the third guide structure 626 and the fourth guide structure 24, so that multiple third push rods 624 and multiple fourth push rods 625 can respectively lift up multiple freezing tubes located in the standard freezing box 3 and multiple freezing tubes located in the biological sample freezing box 4 at the same time. The overall structure is simple and easy to assemble and use.

[0064] It should be noted that the present invention does not impose any restrictions on the specific structural shapes of the third guide structure 626 and the fourth guide structure 24. As long as the third guide structure 626 and the fourth guide structure 24 cooperate to move vertically during the up and down movement of the second top plate 623, they are sufficient. In actual applications, those skilled in the art can customize the specific structural shapes of the third guide structure 626 and the fourth guide structure 24 according to actual needs. For example, the third guide structure 626 can be configured as a guide post extending vertically upward, and the fourth guide structure 24 can be configured as a guide hole with the guide post located within the guide hole. Alternatively, the fourth guide structure 24 can be configured as a guide post extending vertically downward, and the third guide structure 626 can be configured as a guide hole with the guide post located within the guide hole, and so on. Such adjustments and changes to the specific structural shapes of the third guide structure 626 and the fourth guide structure 24 do not deviate from the basic principles of the present invention and should be within the scope of protection of the present invention.

[0065] Preferably, the test tube placement holes in the standard freezing box 3 are distributed in multiple rows or columns, and multiple first push rods 614 correspond to the test tube placement holes in odd rows or odd columns in the standard freezing box 3, and multiple third push rods 624 correspond to the test tube placement holes in even rows or even columns in the standard freezing box 3; the test tube placement holes in the biological sample freezing box 4 are distributed in multiple rows or columns, and multiple second push rods 615 correspond to the test tube placement holes in odd rows or odd columns in the biological sample freezing box 4, and multiple fourth push rods 625 correspond to the test tube placement holes in even rows or even columns in the standard freezing box 3.

[0066] The test tube placement holes in the standard freezing box 3 and the test tube placement holes in the biological sample freezing box 4 are distributed in multiple rows or columns, so that the first top tube assembly 61 corresponds to the odd rows or odd columns, and the second top tube assembly 62 corresponds to the even rows or even columns, so that the freezing tubes in the odd rows or odd columns and the freezing tubes in the even rows or even columns are not lifted up at the same time, retaining sufficient space for picking up tubes, which helps to pick up tubes smoothly and is more convenient to use. It is suitable for freezing boxes with different storage densities, especially for biological sample freezing boxes 4 with high-density storage.

[0067] It should be noted that the present invention does not impose any restrictions on the specific structure of the first transmission component 612 and the second transmission component 622. In actual applications, as long as the first transmission component 612 and the second transmission component 622 have a transmission function and can respectively drive the first top plate 613 and the second top plate 623 to move up and down, in actual applications, those skilled in the art can set the specific structure of the first transmission component 612 and the second transmission component 622 according to actual needs.

[0068] Preferably, if Figure 3 and Figure 5As shown, the first transmission assembly 612 includes a first transmission joint 6121, a second transmission joint 6122, a third transmission joint 6123 and a first support arm 6124, the first end of the first transmission joint 6121 is pivotally connected to the bottom end of the first connecting rod 611, the second end of the first transmission joint 6121 is pivotally connected to the first end of the second transmission joint 6122, the second end of the second transmission joint 6122 is pivotally connected to the first end of the third transmission joint 6123, the second end of the third transmission joint 6123 is pivotally connected to the first top plate 613, the second transmission joint 6122 is horizontally arranged, and the first connection end 61221 is arranged in the middle position of the second transmission joint 6122, one end of the first support arm 6124 is fixedly connected to the tray 2, and the other end of the first support arm 6124 is pivotally connected to the first connection end 61221.

[0069] The first transmission assembly 612 is configured to include a first transmission joint 6121, a second transmission joint 6122, a third transmission joint 6123, and a first support arm 6124. When the first connecting rod 611 moves downward, it drives the first transmission joint 6121 downward, thereby rotating both the first and second ends of the first transmission joint 6121. This in turn causes the second transmission joint 6122 to rotate about the first connecting end 61221, causing the second end of the second transmission joint 6122 to move upward. This in turn drives the first top plate 613 upward via the third transmission joint 6123, thereby causing the first top plate 613 to move vertically upward, thereby lifting the cryotubes corresponding to the first and second top rods 614 and 615. The overall structure is simple and the transmission effect is good.

[0070] Preferably, if Figure 3 and Figure 5 As shown, the second transmission assembly 622 includes a fifth transmission joint 6221, a sixth transmission joint 6222, a seventh transmission joint 6223 and a second support arm 6224, the first end of the fifth transmission joint 6221 is pivotally connected to the bottom end of the second connecting rod 621, the second end of the fifth transmission joint 6221 is pivotally connected to the first end of the sixth transmission joint 6222, the second end of the sixth transmission joint 6222 is pivotally connected to the first end of the seventh transmission joint 6223, the second end of the seventh transmission joint 6223 is pivotally connected to the second top plate 623, the sixth transmission joint 6222 is horizontally arranged and a second connection end 62221 is arranged in the middle position of the sixth transmission joint 6222, one end of the second support arm 6224 is fixedly connected to the tray 2, and the other end of the second support arm 6224 is pivotally connected to the second connection end 62221.

[0071] The second transmission assembly 622 is configured with a fifth transmission joint 6221, a sixth transmission joint 6222, a seventh transmission joint 6223, and a second support arm 6224. When the second connecting rod 621 moves downward, the fifth transmission joint 6221 is driven downward, thereby rotating both the first and second ends of the fifth transmission joint 6221. This in turn causes the sixth transmission joint 6222 to rotate about the second connecting end 62221, causing the second end of the sixth transmission joint 6222 to move upward. This in turn drives the second top plate 623 upward via the seventh transmission joint 6223, thereby vertically moving the second top plate 623 upward, thereby lifting the cryotubes corresponding to the third and fourth push rods 624 and 625. The overall structure is simple and the transmission effect is good.

[0072] Preferably, if Figures 6 to 8 As shown, the driving mechanism 5 includes a driving member 51, a first rotating disk 52, and a second rotating disk 53. The driving member 51 is connected to the first rotating disk 52 and the second rotating disk 53 and can drive the first rotating disk 52 and the second rotating disk 53 to rotate simultaneously. The driving member 51 can simultaneously drive the first rotating disk 52 and the second rotating disk 53 to rotate.

[0073] The first rotating disk 52 is provided with a first semicircular groove 521 and a first linear groove 522 connected to the first semicircular groove 521. The center of the first semicircular groove 521 coincides with the rotation axis of the first rotating disk 52. A first sliding member 6111 is fixedly mounted on the top of the first connecting rod 611. The first sliding member 6111 is located at the intersection of the first semicircular groove 521 and the first linear groove 522 and is capable of sliding along the first semicircular groove 521 and the first linear groove 522. In an initial position, the first sliding member 6111 is located at the intersection of the first semicircular groove 521 and the first linear groove 522. When the first rotating disk 52 rotates, the first sliding member 6111 is capable of sliding along the first semicircular groove 521 or the first linear groove 522.

[0074] The second rotating disk 53 is provided with a second semicircular groove 531 and a second linear groove 532 connected to the second semicircular groove 531. The center of the second semicircular groove 531 coincides with the rotation axis of the second rotating disk 53. A second sliding member 6211 is fixedly mounted on the top of the second connecting rod 621. The second sliding member 6211 is located at the intersection of the second semicircular groove 531 and the second linear groove 532 and is capable of sliding along the second semicircular groove 531 and the second linear groove 532. In an initial position, the second sliding member 6211 is located at the intersection of the second semicircular groove 531 and the second linear groove 532. When the second rotating disk 53 rotates, the second sliding member 6211 is capable of sliding along the second semicircular groove 531 and the second linear groove 532.

[0075] When the driving member 51 drives the first rotating disk 52 and the second rotating disk 53 to rotate in the first direction, the first sliding member 6111 slides in the first linear groove 522 along the length direction of the first linear groove 522, thereby driving the first connecting rod 611 to move downward. At the same time, the second sliding member 6211 slides in the second semicircular groove 531 along the second semicircular groove 531, while keeping the second connecting rod 621 stationary. When the driving member 51 drives the first rotating disk 52 and the second rotating disk 53 to rotate in the first direction, the first sliding member 6111 slides in the first linear groove 522 along the length direction of the first linear groove 522 and moves toward the end away from the first semicircular groove 521, thereby driving the first connecting rod 611 to move downward. At the same time, the second sliding member 6211 slides in the second semicircular groove 531 and moves toward the end away from the second linear groove 532, while keeping the second connecting rod 621 stationary.

[0076] When the driving member 51 drives the first rotating disk 52 and the second rotating disk 53 to rotate in the second direction, the first sliding member 6111 slides within the first semicircular groove 521 along the first semicircular groove 521, while keeping the first connecting rod 611 stationary. Simultaneously, the second sliding member 6211 slides within the second linear groove 532 along the length of the second linear groove 532, thereby driving the second connecting rod 621 to move downward. The first direction is opposite to the second direction. When the driving member 51 drives the first rotating disk 52 and the second rotating disk 53 to rotate in the second direction, the first sliding member 6111 slides within the first semicircular groove 521 and moves toward the end away from the first linear groove 522, while keeping the first connecting rod 611 stationary. Simultaneously, the second sliding member 6211 slides within the second linear groove 532 along the length of the second linear groove 532 and moves toward the end away from the second semicircular groove 531, thereby driving the second connecting rod 621 to move downward.

[0077] It should be noted that the present invention does not impose any restrictions on the specific structures of the first sliding member 6111 and the second sliding member 6211. As long as the first sliding member 6111 can slide along the first semicircular groove 521 and the first linear groove 522, and the second sliding member 6211 can slide along the second semicircular groove 531 and the second linear groove 532, it is sufficient. In actual applications, those skilled in the art can customize the specific structures of the first sliding member 6111 and the second sliding member 6211 according to actual needs. For example, the first sliding member 6111 and the second sliding member 6211 can be configured as sliders, or as rollers, etc. Such adjustments and changes to the specific structures of the first sliding member 6111 and the second sliding member 6211 do not deviate from the basic principles of the present invention and should be within the scope of protection of the present invention.

[0078] Preferably, if Figures 6 to 8 As shown, the driving mechanism 5 also includes a connecting shaft 54, one end of which is fixedly connected to the driving member 51, and the first turntable 52 and the second turntable 53 are both fixedly connected to the connecting shaft 54. The driving member 51 can drive the connecting shaft 54 ​​to rotate and drive the first turntable 52 and the second turntable 53 to rotate synchronously.

[0079] A connecting shaft 54 ​​is provided to connect the driving member 51 with the first turntable 52 and the second turntable 53 , so that the first turntable 52 and the second turntable 53 rotate synchronously, thereby improving driving stability and facilitating use.

[0080] Preferably, if Figure 9 As shown, two first accommodating cavities 21 are provided, and two standard freezing boxes 3 are provided, and are respectively located in the two first accommodating cavities 21 .

[0081] Two first accommodating chambers 21 are provided to accommodate two standard freezing boxes 3, which can increase the accommodating number of the tray 2. In addition, the lifted freezing tubes can also be directly placed in the standard freezing boxes 3 for batch transfer and convenient use.

[0082] Preferably, the storage quantity of the biological sample freezing box 4 is greater than the sum of the storage quantities of the two standard freezing boxes 3 .

[0083] The storage quantity of the biological sample freezing box 4 is made greater than the sum of the storage quantities of the two standard freezing boxes 3 , thereby increasing the storage capacity of the biological sample freezing box 4 .

[0084] Preferably, the top view area of ​​the biological sample freezing box 4 is equal to the sum of the top view areas of the two standard freezing boxes 3 .

[0085] Preferably, a first elastic positioning member 25 is provided on the tray 2 , and the first elastic positioning member 25 can fix the standard freezing box 3 in the first accommodating cavity 21 .

[0086] By providing the first elastic positioning member 25 , the standard freezing box 3 can be fixed in the first accommodating cavity 21 , thereby preventing the standard freezing box 3 from moving during the process of tube jacking and tube selection, thereby ensuring smooth tube selection.

[0087] Preferably, a second elastic positioning member 26 is provided on the tray 2 , and the second elastic positioning member 26 can fix the biological sample freezing box 4 in the second accommodating cavity 22 .

[0088] The second elastic positioning member 26 can fix the biological sample freezing box 4 in the second accommodating cavity 22 , thereby preventing the biological sample freezing box 4 from moving during the process of pushing and picking the tube, thereby ensuring smooth tube picking.

[0089] It should be noted that the present invention does not impose any restrictions on the specific structures of the first elastic positioning member 25 and the second elastic positioning member 26. As long as the first elastic positioning member 25 can secure the standard cryopreservation box 3 within the first accommodating chamber 21 and the second elastic positioning member 26 can secure the biological sample cryopreservation box 4 within the second accommodating chamber 22, it is sufficient. In actual applications, those skilled in the art can customize the specific structures of the first elastic positioning member 25 and the second elastic positioning member 26 according to actual needs. For example, the first elastic positioning member 25 and the second elastic positioning member 26 can be configured as spring leaves, or as locking elements, etc. Such adjustments and changes to the specific structures of the first elastic positioning member 25 and the second elastic positioning member 26 do not deviate from the basic principles of the present invention and are within the scope of protection of the present invention.

[0090] The process of the pipe lifting device of the present invention when performing pipe jacking operation is as follows:

[0091] The initial position of the first sliding member 6111 is at the intersection of the first semicircular groove 521 and the first linear groove 522 , and the initial position of the second sliding member 6211 is at the intersection of the second semicircular groove 531 and the second linear groove 532 .

[0092] First, the driving mechanism 5 drives the first jacking assembly 61 to jack the pipe. During the process of the driving component 51 driving the first turntable 52 and the second turntable 53 to rotate along the first direction, the first sliding member 6111 enters the first linear groove 522 at the intersection of the first semicircular groove 521 and the first linear groove 522, and moves along the first linear groove 522 toward the end away from the first semicircular groove 521, thereby driving the first connecting rod 611 to move downward. The first connecting rod 611 drives the first top plate 613 to move upward under the action of the first transmission assembly 612, and moves at the first guide joint. Under the cooperation of the structure 616 and the second guide structure 23, the first top plate 613 moves vertically upward, so that the multiple first top rods 614 and the multiple second top rods 615 respectively lift the multiple cryotubes located in the standard cryobox 3 and the multiple cryotubes located in the biological sample cryobox 4; in this process, the second sliding member 6211 enters the second semicircular groove 531 at the intersection of the second semicircular groove 531 and the second straight groove 532, and moves along the second semicircular groove 531 toward the end away from the second straight groove 532, so that the second connecting rod 621 remains stationary.

[0093] Secondly, the driving mechanism 5 drives the first jacking assembly 61 to return to the non-jacking state, and the driving member 51 drives the first turntable 52 and the second turntable 53 to rotate in the second direction. The first sliding member 6111 slides in the first linear groove 522 and moves toward the end close to the first semicircular groove 521 until it returns to the intersection of the first semicircular groove 521 and the first linear groove 522. During this process, the first connecting rod 611 moves upward, thereby causing the first top plate 613 to move vertically downward, and driving the first push rod 614 and the second push rod 615 to move downward; at the same time, the second sliding member 6211 slides in the second semicircular groove 531 and returns to the intersection of the second semicircular groove 531 and the second linear groove 532, and during this process, the second connecting rod 621 remains stationary.

[0094] Again, the driving mechanism 5 drives the second jacking assembly 62 to jack the pipe, and the driving member 51 continues to drive the first rotary disk 52 and the second rotary disk 53 to rotate in the second direction, so that the first sliding member 6111 enters the first semicircular groove 521 from the intersection of the first semicircular groove 521 and the first linear groove 522, and slides along the first semicircular groove 521 toward the end away from the first linear groove 522, thereby keeping the first connecting rod 611 stationary; in this process, the second sliding member 6211 enters the second linear groove 532 from the intersection of the second semicircular groove 531 The second connecting rod 621 moves downwardly, and the second connecting rod 621 moves the second top plate 623 upwardly under the action of the second transmission assembly 622, and the second top plate 623 moves vertically upwardly under the cooperation of the third guide structure 626 and the fourth guide structure 24, so that the multiple third push rods 624 and the multiple fourth push rods 625 respectively lift the multiple cryotubes located in the standard cryobox 3 and the multiple cryotubes located in the biological sample cryobox 4.

[0095] Finally, the driving mechanism 5 drives the second jacking assembly 62 to return to the non-jacking state, and the driving member 51 drives the first turntable 52 and the second turntable 53 to rotate in the first direction. The first sliding member 6111 slides in the first semicircular groove 521 and returns to the intersection of the first semicircular groove 521 and the first linear groove 522. During this process, the first connecting rod 611 remains stationary; at the same time, the second sliding member 6211 slides in the second linear groove 532 and moves toward one end close to the second semicircular groove 531 until it returns to the intersection of the second semicircular groove 531 and the second linear groove 532. During this process, the second connecting rod 621 moves upward, thereby causing the second top plate 623 to move downward, and driving the third push rod 624 and the fourth push rod 625 to move downward.

[0096] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A pipe lifting device, characterized in that: The pipe lifting device comprises: A pipe-lifting bucket, wherein a pipe-lifting opening is provided on the top wall of the pipe-lifting bucket; A tray is fixedly installed in the pipe-lifting barrel and located below the pipe-lifting opening, and is provided with a first accommodating cavity and a second accommodating cavity; A standard freezing box, placed in the first receiving chamber; a biological sample freezing box, which is placed in the second accommodating chamber, and the storage quantity of the biological sample freezing box is greater than the storage quantity of the standard freezing box; a driving mechanism, which is installed on the outside of the pipe-lifting barrel; and a jacking tube assembly installed in the tube lifting barrel, with one end thereof passing through the top wall of the tube lifting barrel and connected to the driving mechanism, wherein the driving mechanism is capable of driving the jacking tube assembly to move up and down in a vertical direction, and the jacking tube assembly is capable of simultaneously lifting the cryotubes in the biological sample freezing box and the cryotubes in the standard freezing box upward during the vertical upward movement; The jacking pipe assembly includes a first jacking pipe assembly and a second jacking pipe assembly, and the driving mechanism is connected to the first jacking pipe assembly and the second jacking pipe assembly and can respectively drive the first jacking pipe assembly and the second jacking pipe assembly to move up and down in a vertical direction relative to the pipe lifting bucket. The driving mechanism keeps the second jacking pipe assembly stationary while driving the first jacking pipe assembly to move up and down in the vertical direction, and keeps the first jacking pipe assembly stationary while driving the second jacking pipe assembly to move up and down in the vertical direction; The first jacking tube assembly and the second jacking tube assembly are capable of simultaneously lifting up some of the cryotubes in the biological sample freezing box and some of the cryotubes in the standard freezing box during the process of vertically upward movement; The first jacking pipe assembly includes a first connecting rod, which is vertically arranged and passes through the top wall of the pipe lifting barrel. The driving mechanism is connected to the top of the first connecting rod and can drive the first connecting rod to move up and down in the vertical direction. The second jacking pipe assembly includes a second connecting rod, which is vertically arranged and passes through the top wall of the pipe lifting barrel. The driving mechanism is connected to the top of the second connecting rod and can drive the second connecting rod to move up and down in the vertical direction. The driving mechanism includes a driving member, a first turntable and a second turntable, wherein the driving member is connected to the first turntable and the second turntable and can drive the first turntable and the second turntable to rotate simultaneously. The first rotating disk is provided with a first semicircular groove and a first linear groove connected to the first semicircular groove. The center of the first semicircular groove coincides with the rotation axis of the first rotating disk. A first sliding member is fixedly provided on the top end of the first connecting rod. The first sliding member is located at the intersection of the first semicircular groove and the first linear groove and can slide along the first semicircular groove and the first linear groove. The second turntable is provided with a second semicircular groove and a second linear groove connected to the second semicircular groove, the center of the second semicircular groove coincides with the rotation axis of the second turntable, and a second sliding member is fixedly provided on the top end of the second connecting rod. The second sliding member is located at the intersection of the second semicircular groove and the second linear groove and can slide along the second semicircular groove and the second linear groove. When the driving member drives the first rotating disk and the second rotating disk to rotate in the first direction, the first sliding member slides in the first linear groove along the length direction of the first linear groove, thereby driving the first connecting rod to move downward, and at the same time, the second sliding member slides in the second semicircular groove along the second semicircular groove and keeps the second connecting rod stationary; When the driving member drives the first rotating disk and the second rotating disk to rotate in the second direction, the first sliding member slides in the first semicircular groove along the first semicircular groove and keeps the first connecting rod stationary, and at the same time, the second sliding member slides in the second linear groove along the length direction of the second linear groove to drive the second connecting rod to move downward; The first direction is opposite to the second direction.

2. The pipe lifting device according to claim 1, characterized in that: The first jacking pipe assembly includes a first transmission assembly, a first jack plate, and a plurality of first jacks, a plurality of second jacks, and a first guide structure provided on the first jack plate, and the tray is provided with a second guide structure at a position corresponding to the first guide structure; The bottom end of the first connecting rod is connected to the first top plate through the first transmission assembly. The plurality of first push rods are respectively located below the plurality of test tube placement holes in the standard freezing box and are arranged one-to-one correspondingly thereto, and the plurality of second push rods are respectively located below some of the test tube placement holes in the biological sample freezing box and are arranged one-to-one correspondingly thereto. In the process of the driving mechanism driving the first connecting rod to move downward, the first connecting rod simultaneously drives the first top plate to move upward through the first transmission assembly, and the first top plate is moved in the vertical direction under the cooperation of the first guide structure and the second guide structure, so that the multiple first push rods and the multiple second push rods respectively lift up the multiple cryotubes located in the standard cryobox and the multiple cryotubes located in the biological sample cryobox at the same time.

3. The pipe lifting device according to claim 2, characterized in that: The second jacking pipe assembly includes a second transmission assembly, a second top plate, and a plurality of third jacks, a plurality of fourth jacks, and a third guide structure provided on the second top plate, and the tray is provided with a fourth guide structure at a position corresponding to the third guide structure; The bottom end of the second connecting rod is connected to the second top plate through the second transmission assembly. The plurality of third push rods are respectively located below the plurality of test tube placement holes in the standard freezing box and are arranged one-to-one correspondingly thereto, and the plurality of fourth push rods are respectively located below the plurality of test tube placement holes in the biological sample freezing box and are arranged one-to-one correspondingly thereto. When the driving mechanism drives the second connecting rod to move downward, the second connecting rod simultaneously drives the second top plate to move upward through the second transmission assembly, and the second top plate moves in a vertical direction under the cooperation of the third guide structure and the fourth guide structure, so that the plurality of third push rods and the plurality of fourth push rods respectively lift up the plurality of cryotubes in the standard cryobox and the plurality of cryotubes in the biological sample cryobox simultaneously; The second top plate is located below the first top plate, and the third top rod and the fourth top rod are arranged through the first top plate.

4. The pipe lifting device according to claim 3, characterized in that: The test tube placement holes in the standard freezing box are distributed in multiple rows or columns, the multiple first push rods correspond to the test tube placement holes in odd rows or odd columns in the standard freezing box, and the multiple third push rods correspond to the test tube placement holes in even rows or even columns in the standard freezing box; The test tube placement holes in the biological sample freezing box are distributed in multiple rows or columns, and multiple second push rods correspond to the test tube placement holes in odd rows or odd columns in the biological sample freezing box, and multiple fourth push rods correspond to the test tube placement holes in even rows or even columns in the standard freezing box.

5. The pipe lifting device according to claim 3, characterized in that: The first transmission assembly includes a first transmission joint, a second transmission joint, a third transmission joint and a first support arm, the first end of the first transmission joint is pivotally connected to the bottom end of the first connecting rod, the second end of the first transmission joint is pivotally connected to the first end of the second transmission joint, the second end of the second transmission joint is pivotally connected to the first end of the third transmission joint, the second end of the third transmission joint is pivotally connected to the first top plate, the second transmission joint is horizontally arranged and the first connection end is arranged in the middle position of the second transmission joint, one end of the first support arm is fixedly connected to the tray, and the other end of the first support arm is pivotally connected to the first connection end; and / or The second transmission assembly includes a fifth transmission joint, a sixth transmission joint, a seventh transmission joint and a second support arm, the first end of the fifth transmission joint is pivotally connected to the bottom end of the second connecting rod, the second end of the fifth transmission joint is pivotally connected to the first end of the sixth transmission joint, the second end of the sixth transmission joint is pivotally connected to the first end of the seventh transmission joint, the second end of the seventh transmission joint is pivotally connected to the second top plate, the sixth transmission joint is horizontally arranged and a second connecting end is arranged in the middle position of the sixth transmission joint, one end of the second support arm is fixedly connected to the tray, and the other end of the second support arm is pivotally connected to the second connecting end.

6. The pipe lifting device according to claim 1, characterized in that: The driving mechanism also includes a connecting shaft, one end of which is fixedly connected to the driving member, and the first turntable and the second turntable are both fixedly connected to the connecting shaft. The driving member can drive the connecting shaft to rotate and drive the first turntable and the second turntable to rotate synchronously.

7. The pipe lifting device according to any one of claims 1 to 6, characterized in that: There are two first accommodating cavities, and there are two standard freezing boxes, which are respectively located in the two first accommodating cavities.

8. The pipe lifting device according to claim 7, characterized in that: The storage quantity of the biological sample freezing box is greater than the sum of the storage quantities of the two standard freezing boxes; and / or the top view area of ​​the biological sample freezing box is equal to the sum of the top view areas of the two standard freezing boxes.

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