Basket mechanism and biological sample storage device

Abstract

The utility model discloses a basket mechanism and a biological sample storage device. The basket mechanism comprises a heat preservation box body, a transmission assembly, a basket hook and a driving motor, the heat preservation box body comprises a shell, a sealing door and a heat preservation gas conveying piece. The shell is hollow and provided with a bottom end opening. The sealing door is slidably mounted at the bottom of the shell; the heat preservation gas conveying piece is arranged on one side of an inner cavity of the shell, communicates with a gas source of heat preservation gas and is provided with a plurality of micropores. The transmission assembly is arranged on the other side of the inner cavity of the shell, the side, facing the heat preservation gas conveying piece, of the transmission assembly is connected with the basket hook, and a basket channel is formed between the transmission assembly and the heat preservation gas conveying piece and communicates with the bottom end opening. The output end of the driving motor is connected with the transmission assembly. Through the arrangement, when the basket mechanism is transferred or taken out, heat preservation operation can be automatically carried out on the sample tube, global low-temperature operation does not need to be carried out on a biological sample library, the speed is increased, and waste of refrigeration resources such as liquid nitrogen is avoided.

Description

Technical Field

[0001] The utility model relates to the field of biological sample storage, in particular to a basket mechanism and a biological sample storage device. Background Art

[0002] The biological sample library is an important basic equipment for current research in the medical and biological fields. It can provide a deep low temperature environment close to liquid nitrogen, allowing biological samples such as blood, stem cells and immune cells to remain active for a long time. The biological sample library is usually based on sample tubes. Multiple sample tubes are stored in plate racks, and multiple plate racks are arranged and stored in baskets. Multiple baskets are placed in the liquid nitrogen tank of the biological sample library. When it is necessary to store and take out biological samples, the basket is placed in or taken out of the liquid nitrogen tank through a lifting device fixed above the liquid nitrogen tank.

[0003] In the prior art, most basket lifting mechanisms are open-type designs. Therefore, when the lifting device takes out or transfers the basket lifting mechanism from the liquid nitrogen tank, it is necessary to perform a full-range low-temperature operation to ensure that the sample tube will not be inactivated due to large temperature changes during the transfer process. However, due to the large space of the biological sample library, the pre-cooling time required for the entire biological sample library is relatively long during the full-range low-temperature operation. In addition, due to the space relationship, the liquid nitrogen gas required for pre-cooling is also relatively large, so there are defects such as low extraction rate and waste of resources.

[0004] Therefore, a basket carrying mechanism and a biological sample storage device are needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a basket lifting mechanism and a biological sample storage device, so that the basket lifting mechanism can autonomously perform a heat preservation operation on the sample tube during the process of being transferred or taken out, without the need to perform a low-temperature operation on the entire biological sample library, thereby increasing the speed and avoiding the waste of refrigeration resources such as liquid nitrogen.

[0006] In order to solve the above technical problems, the utility model provides a basket carrying mechanism, including a heat preservation box, a transmission assembly, a basket carrying hook and a driving motor;

[0007] The heat preservation box comprises a shell, a sealing door and a heat preservation gas conveying member, wherein the shell is hollow inside and has a bottom opening; the sealing door is slidably mounted on the bottom of the shell to open or close the bottom opening;

[0008] The heat preservation gas conveying member is arranged at one side of the inner cavity of the shell, is connected to the gas source of the heat preservation gas, and has a plurality of micro holes for outputting the heat preservation gas;

[0009] The transmission assembly is arranged at the other side of the inner cavity of the shell, and is connected to the basket lifting hook on the side facing the heat preservation gas conveying member, a basket lifting channel is arranged between the transmission assembly and the heat preservation gas conveying member, and the basket lifting channel is communicated with the bottom opening;

[0010] The output end of the driving motor is connected to the transmission assembly, and the driving motor is used to provide driving force to the transmission assembly, and the transmission assembly is used to drive the basket carrying hook to move back and forth along the basket carrying channel; when the sealed door is opened, the basket on the basket carrying hook enters and exits the thermal insulation box through the bottom opening.

[0011] Furthermore, a bottom bracket is provided at the bottom end of the shell, and the bottom end opening is opened on the bottom bracket;

[0012] A sliding block is provided on the lower surface of the bottom bracket;

[0013] The upper surface of the sealing door is provided with a guide rail matching the sliding block;

[0014] Wherein, the sliding block is slidably engaged on the guide rail.

[0015] Furthermore, a rack parallel to the guide rail is embedded on the upper surface of the sealing door, and one end of the rack is exposed outside the shell;

[0016] An output motor is arranged outside the shell, and a gear which is always meshed with the rack is arranged at the output end of the output motor.

[0017] Furthermore, the heat-insulating gas conveying component is arranged in an S shape along the height direction of the shell, one end of the heat-insulating gas conveying component is suspended in the shell, and the other end of the heat-insulating gas conveying component passes through the outside of the shell to connect to the gas source of the heat-insulating gas.

[0018] Furthermore, the heat-insulating gas conveying member is a liquid nitrogen copper tube, and a sealing member is provided on the outer wall of one end of the liquid nitrogen copper tube connected to the shell;

[0019] A plurality of microholes are evenly arranged on the liquid nitrogen copper tube.

[0020] Further, the transmission assembly includes a moving body, a sliding plate, an upper end limit guide assembly, a lower end limit guide assembly, a sliding plate limit guide assembly, a sprocket, a chain, a chain upper end fixing block and a chain lower end fixing block;

[0021] The mobile body is arranged vertically, and a side away from the basket hook is engaged with an output end of the driving motor;

[0022] The upper and lower ends of the mobile body are slidably connected to the inner cavity surface of the shell through the upper end limit guide assembly and the lower end limit guide assembly respectively;

[0023] The sliding plate is arranged at the upper end of the mobile body, and the sliding plate is slidably connected with a side surface of the mobile body toward the basket hook through the sliding plate guide assembly;

[0024] Two sprockets are provided, and the two sprockets are respectively provided at the upper and lower ends of the mobile body. The chain is wound around the two sprockets, and one side of the chain is fixedly connected to the sliding plate through the upper end fixing block of the chain, and the other side of the chain is fixedly connected to the inner wall of the shell through the lower end fixing block of the chain.

[0025] Further, the upper end limit guide assembly includes two upper end guide wheel rails and four upper end guide wheels, the two upper end guide wheel rails are installed on the inner wall of the shell and are parallel to each other, the four upper end guide wheels are arranged between the two upper end guide wheel rails, and each of the upper end guide wheel rails is slidably connected to the two upper end guide wheels, and the four upper end guide wheels are fixedly connected to the upper end of the mobile body;

[0026] The lower end limit guide assembly includes two lower end guide wheel rails and four lower end guide wheels, the two lower end guide wheel rails are installed on the mobile body and are parallel to each other, the four lower end guide wheels are arranged outside the two lower end guide wheel rails, and each of the lower end guide wheel rails is slidably connected to the two lower end guide wheels, and the four lower end guide wheels are fixedly connected to the inner wall of the shell;

[0027] The sliding plate limiting guide assembly includes two sliding plate guide rails and four sliding plate guide wheels. The two sliding plate guide rails are installed on a side surface of the mobile body facing the basket carrying hook and are parallel to each other. Each sliding plate guide rail is slidably connected to the two sliding plate guide wheels, and the four sliding plate guide wheels are fixedly connected to the sliding plate.

[0028] Furthermore, the basket carrying hook is fixedly connected to the sliding plate, and the hook has two symmetrically arranged claws, and a clamping space formed between the two claws is located in the basket carrying channel.

[0029] Furthermore, the shell includes an auxiliary board bracket, a main board bracket and a top bracket, the auxiliary board bracket and the main board bracket are arranged opposite to each other and spliced ​​into a cylindrical structure with a hollow interior and openings at both ends, and the top bracket is fixedly arranged at the upper end of the cylindrical structure to close the upper end opening of the cylindrical structure;

[0030] The auxiliary board bracket, the main board bracket and the top bracket are all made of heat-insulating materials, and the drive motor and the transmission assembly are both installed on the main board bracket.

[0031] On the other hand, the present invention further provides a biological sample storage device, comprising the basket mechanism described in any one of the above embodiments.

[0032] Compared with the prior art, the utility model has at least the following beneficial effects:

[0033] By providing an insulation box including a shell with a bottom opening, a sealed door and an insulation gas conveying member, and installing a basket hook in the shell through a transmission assembly, the sample tube can be stably placed in the insulation box. When the basket lifting mechanism needs to be transferred or taken out from the liquid nitrogen tank, a closed chamber can be formed in the insulation box by closing the sealed door, and then insulation gas is input into the insulation box with the help of the insulation gas conveying member to isolate the sample tube from the external environment, thereby ensuring that the sample tube will not be inactivated due to changes in ambient temperature. This method replaces the method of performing full-range low-temperature operation in the sample library in the prior art to ensure the activity of the sample tube when the basket lifting mechanism is transferred, thereby effectively shortening the waiting time for pre-cooling when extracting the basket lifting mechanism and avoiding the waste of insulation gas (i.e., liquid nitrogen) resources.

[0034] Furthermore, by setting up a transmission assembly including a mobile body, a sliding plate, an upper limit guide assembly, a lower limit guide assembly, a sliding plate limit guide assembly, a sprocket, a chain, a chain upper end fixed block and a chain lower end fixed block, when the mobile body moves in a vertical direction under the power of a driving motor, the sliding plate can be synchronously pulled by the chain to move relative to the mobile body, thereby achieving the purpose of doubling the stroke, making the basket hook have a wider range of movement and more sensitive movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a structural schematic diagram of a basket carrying mechanism in one embodiment of the utility model;

[0036] Figure 2 This is a schematic diagram of the internal structure of the basket carrying mechanism in one embodiment of the utility model;

[0037] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0038] Figure 4 For this utility model Figure 2 A magnified view of the center basket hook;

[0039] Figure 5 It is a side cross-sectional view of a basket carrying mechanism in one embodiment of the utility model;

[0040] Figure 6 It is a partial bottom sectional view of a basket carrying mechanism in one embodiment of the utility model;

[0041] Figure 7 It is a schematic diagram of the partial structure of the moving body of the basket carrying mechanism in one embodiment of the utility model.

[0042] Figure Number:

[0043] 1. Insulation box; 11. Shell; 111. Auxiliary board bracket; 112. Main board bracket; 113. Top bracket; 12. Sealed door; 121. Guide rail; 122. Rack; 13. Insulation gas conveying part; 131. Micropore; 14. Bracket; 141. Slider;

[0044] 3. Basket hook;

[0045] 4. Open at the bottom;

[0046] 5. Output motor; 51. Gear;

[0047] 16. Lower guide wheel; 17. Lower guide wheel guide rail; 18. Moving body; 20. Sliding plate; 21. Sliding plate guide wheel; 22. Upper guide wheel guide rail; 23. Upper guide wheel; 24. Sliding plate guide rail; 26. Sprocket; 27. Chain; 28. Chain upper end fixing block; 29. ​​Chain lower end fixing block; 30. Driving motor. DETAILED DESCRIPTION

[0048] The basket mechanism and biological sample storage device of the present invention will be described in more detail below in conjunction with the schematic diagram, wherein the preferred embodiment of the present invention is shown. It should be understood that those skilled in the art can modify the present invention described herein while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as being widely known to those skilled in the art, and not as a limitation to the present invention.

[0049] The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0050] Embodiment 1

[0051] like Figure 1 to Figure 2 As shown, an embodiment of the utility model provides a basket carrying mechanism, including a heat preservation box body 1, a transmission assembly, a basket carrying hook 3 and a driving motor 30.

[0052] The heat preservation box 1 includes a shell 11 , a sealing door 12 and a heat preservation gas conveying member 13 . The shell 11 is hollow inside and has a bottom opening 4 .

[0053] The sealing door 12 is slidably installed at the bottom of the shell 11 to open or close the bottom opening 4, so that when the basket lifting mechanism needs to be taken out, the sealing door 12 can close the bottom opening 4 to form a closed chamber between the shell 11, thereby facilitating the subsequent insulation of the internal sample tubes and ensuring that when the basket lifting mechanism is taken out, the sample tubes will not be inactivated due to excessive changes in ambient temperature.

[0054] Correspondingly, when there is no need to remove the basket lifting mechanism from the liquid nitrogen tank, the sealing door 12 can be in a state of opening the bottom opening 4 to complete the heat preservation operation of the sample tube with the help of the liquid nitrogen in the liquid nitrogen tank.

[0055] The heat preservation gas conveying member 13 is disposed on one side of the inner cavity of the housing 11, and is connected to the gas source of the heat preservation gas, and has a plurality of micropores 131 for outputting the heat preservation gas. That is, the heat preservation operation of the internal sampling tube is completed when the basket lifting mechanism is taken out by outputting the heat preservation gas (i.e., liquid nitrogen) through the micropores 131 with the help of the heat preservation gas conveying member 13.

[0056] The transmission assembly is disposed at the other side of the inner cavity of the shell 11 , and is connected to the basket hook 3 on the side facing the heat-insulating gas conveying member 13 .

[0057] Wherein, a basket lifting channel (i.e., an operating channel of the basket lifting hook 3 ) is provided between the transmission assembly and the heat-insulating gas conveying member 13 , and the basket lifting channel is communicated with the bottom opening 4 .

[0058] The output end of the driving motor 30 is connected to the transmission assembly, and the driving motor 30 is used to provide driving force to the transmission assembly, so that the transmission assembly can drive the basket hook 3 to move back and forth along the basket channel. When the sealing door 12 is opened, the basket on the basket hook 3 enters and exits the thermal insulation box 1 through the bottom opening 4.

[0059] The device is provided with an insulation box 1 including a shell 11 with a bottom opening 4, a sealing door 12 and an insulation gas conveying member 13, and the basket hook 3 is installed in the shell 11 through a transmission component, so that the sample tube can be stably placed in the insulation box 1, and when it is necessary to transfer or take the basket mechanism from the liquid nitrogen tank, a closed chamber can be formed in the insulation box 1 by closing the sealing door 12, and then the insulation gas is input into the insulation box 1 with the help of the insulation gas conveying member 13 to isolate the sample tube from the external environment, thereby ensuring that the sample tube will not be inactivated due to changes in ambient temperature. This method replaces the method in the prior art of performing full-range low-temperature operation in the sample library to ensure the activity of the sample tube when the basket mechanism is transferred, thereby effectively shortening the waiting time for pre-cooling when extracting the basket mechanism and avoiding the waste of insulation gas (i.e., liquid nitrogen) resources.

[0060] like Figure 2 and Figure 3 As shown, in a further embodiment, the structure of the heat preservation box body 1 is further limited to facilitate the control of the sealing door 12 to close or open the bottom opening 4, so as to form a sealed chamber or for the input or output of the basket hook 3, respectively.

[0061] Specifically, a bottom bracket 14 is disposed at the bottom end of the shell 11 , and the bottom opening 4 is opened on the bottom bracket 14 .

[0062] A slider 141 is disposed on the lower surface of the bottom bracket 14, and a guide rail 121 matching the slider 141 is disposed on the upper surface of the sealing door 12, that is, the sealing door 12 can be controlled to close or open the bottom opening 4 by relative sliding between the slider 141 and the guide rail 121.

[0063] It should be particularly noted that the slider 141 is slidably engaged on the guide rail 121 , that is, the guide rail 121 and the slider 141 are not only constrained in the relative sliding direction, but can also limit the sealing door 12 in the height direction, so that the sealing door 12 is always connected to the bottom bracket 14 .

[0064] In addition, a rack 122 parallel to the guide rail 121 is embedded on the upper surface of the sealing door 12 , and the upper surface of the rack 122 is sealed with the lower surface of the bottom bracket 14 , and one end of the rack 122 is exposed outside the shell 11 .

[0065] An output motor 5 is disposed outside the housing 11, and a gear 51 is disposed at the output end of the output motor 5, which is always meshed with the rack 122. That is, the rack 122 is moved by the operation of the output motor 5, and since the rack 122 is fixedly connected to the sealing door 12, the sealing door 12 can be moved, and accordingly, the guide rail 121 can be moved relative to the slider 141 to complete the opening or closing of the bottom opening 4.

[0066] like Figure 2 and Figure 4 As shown, in this embodiment, the heat preservation gas delivery member 13 is further limited so as to be able to better output the heat preservation gas (ie, nitrogen) to the sample tube and correspondingly improve the heat preservation rate.

[0067] Specifically, the heat-insulating gas conveying component 13 is arranged in an S shape along the height direction of the shell 11, one end of the heat-insulating gas conveying component 13 is suspended in the shell 11, and the other end of the heat-insulating gas conveying component 13 passes through the outside of the shell 11 to connect to the gas source of the heat-insulating gas. By arranging the heat-insulating gas conveying component 13 in an S shape in the height direction, the flow path of the heat-insulating gas conveying component 13 can be extended to the maximum extent within the same space, thereby correspondingly increasing the number of micropores 131, thereby effectively improving the input rate of nitrogen, thereby correspondingly improving the heat-insulating rate and heat-insulating effect of the sample tube.

[0068] It should be noted that the heat-insulating gas conveying member 13 is a liquid nitrogen copper tube. Since the copper tube has a better conduction effect, the heat-insulating rate and heat-insulating effect of the sample tube can be further improved.

[0069] The outer wall of one end of the liquid nitrogen copper tube connected to the housing 11 is provided with a seal (not shown in the figure) to improve the sealing of the connection and further improve the heat preservation effect of the sample tube. The seal can be set as a sealing gasket.

[0070] In addition, the plurality of micro-holes 131 are evenly arranged on the liquid nitrogen copper tube to evenly provide heat preservation gas to the sample tubes in the basket, thereby improving the heat preservation effect.

[0071] Embodiment 2

[0072] like Figure 2 and Figures 4 to 7 As shown, this embodiment further proposes a specific transmission assembly based on the first embodiment to achieve the purpose of doubling the stroke, so that the basket hook 3 has a wider moving range and moves more sensitively.

[0073] Specifically, the transmission assembly includes a moving body 18, a sliding plate 20, an upper end limit guide assembly, a lower end limit guide assembly, a sliding plate limit guide assembly, a sprocket 26, a chain 27, a chain upper end fixing block 28 and a chain lower end fixing block 29.

[0074] The mobile body 18 is vertically arranged, and the upper and lower ends of the mobile body 18 are respectively slidably connected to the inner cavity surface of the housing 11 through the upper end limit guide assembly and the lower end limit guide assembly. That is, the mobile body 18 is limited by the upper end limit guide assembly and the lower end limit guide assembly, so that the mobile body 18 moves along a predetermined track in the vertical direction.

[0075] It should be noted that the moving body 18 and the driving motor 30 are connected by a meshing transmission of a gear set to achieve the movement of the moving body 18 in the vertical direction.

[0076] The sliding plate 20 is disposed at the upper end of the mobile body 18, and the sliding plate 20 is slidably connected to a side of the mobile body 18 facing the basket hook through the sliding plate guide assembly. That is, the sliding plate 20 and the mobile body 18 can slide relative to each other, so that when the mobile body 18 moves, the sliding plate 20 can also slide relative to the mobile body 18, thereby achieving the purpose of doubling the stroke.

[0077] It should be noted that the sliding plate 20 is connected to the mobile body 18 via a sprocket 26, a chain 27, a chain upper end fixing block 28 and a chain lower end fixing block 29, so that when the mobile body 18 moves, the sliding plate 20 can move relative to the mobile body 18.

[0078] Specifically, two sprocket wheels 26 are provided, and the two sprocket wheels 26 are respectively provided at the upper and lower ends of the mobile body 18 , and the chain 27 is wound around the two sprocket wheels 26 .

[0079] like Figure 2 and Figure 5 As shown, one side of the chain 27 is fixedly connected to the sliding plate 20 through the upper end fixing block 28 of the chain, and the other side of the chain 27 is fixedly connected to the inner wall of the shell 11 through the lower end fixing block 29 of the chain, so that the length of the chain 27 between the lower end fixing block 29 of the chain and the upper end fixing block 28 of the chain is a certain value.

[0080] Therefore, when the mobile body 18 moves relative to the shell 11, the mobile body 18 also moves relative to the chain lower end fixing block 29. Since the length of the chain 27 between the chain lower end fixing block 29 and the chain upper end fixing block 28 is a certain value, the chain 27 will provide a traction force to the chain upper end fixing block 28. Under the action of this force, the position of the chain upper end fixing block 28 will also change accordingly, thereby changing the height of the sliding plate 20 fixedly connected to the chain upper end fixing block 28. Based on this, relative movement will occur between the sliding plate 20 and the mobile body 18, that is, when the mobile body 18 moves, the sliding plate 20 moves synchronously relative to the mobile body 18, thereby achieving the purpose of doubling the stroke, making the moving range of the basket hook 3 wider and the movement more sensitive.

[0081] In a further embodiment, a specific upper end limit guide assembly, a lower end limit guide assembly and a sliding plate limit guide assembly are respectively proposed, so that the movement of the moving body 18 and the sliding plate 20 is more stable.

[0082] The upper end limit guide assembly includes two upper end guide wheel rails 22 and four upper end guide wheels 23. The two upper end guide wheel rails 22 are installed on the inner wall of the shell 11 and are parallel to each other. The four upper end guide wheels 23 are arranged between the two upper end guide wheel rails 22, and each upper end guide wheel rail 22 is slidably connected to the two upper end guide wheels 23. The four upper end guide wheels 23 are fixedly connected to the upper end of the mobile body 18.

[0083] The lower end limit guide assembly includes two lower end guide wheel rails 17 and four lower end guide wheels 16, the two lower end guide wheel rails 17 are installed on the mobile body 18 and are parallel to each other, the four lower end guide wheels 16 are arranged outside the two lower end guide wheel rails 17, and each of the lower end guide wheel rails 17 is slidably connected to the two lower end guide wheels 16, and the four lower end guide wheels 16 are fixedly connected to the inner wall of the shell 11.

[0084] The sliding plate limiting guide assembly includes two sliding plate guide rails 24 and four sliding plate guide wheels 21. The two sliding plate guide rails 24 are installed on the side surface of the mobile body 18 facing the basket hook 3 and are parallel to each other. Each sliding plate guide rail 24 is slidably connected to the two sliding plate guide wheels 21, and the four sliding plate guide wheels 21 are fixedly connected to the sliding plate 20.

[0085] It should be noted that the upper guide wheel 23 and the upper guide wheel guide rail 22, the lower guide wheel 16 and the lower guide wheel guide rail 17, and the sliding plate guide rails 24 and the sliding plate guide rails 24 are all connected by sliding snap-fitting to enhance the limiting effect, which is specifically the same as the sliding snap-fitting effect of the slider 141 and the guide rail 121 in Example 1, and will not be elaborated here.

[0086] In addition, the basket carrying hook 3 is further limited. Specifically, the basket carrying hook 3 is fixedly connected to the sliding plate 20, and the hook 3 has two symmetrically arranged claws. The clamping space formed between the two claws is located in the basket carrying channel.

[0087] In other embodiments, a specific housing 11 is also provided to improve the heat preservation performance of the sample tubes in the basket.

[0088] Specifically, the shell 11 includes an auxiliary board bracket 111, a main board bracket 112 and a top bracket 113. The auxiliary board bracket 111 and the main board bracket 112 are arranged relative to each other and spliced ​​into a cylindrical structure with a hollow interior and openings at both ends. The top bracket 113 is fixedly arranged at the upper end of the cylindrical structure to close the upper end opening of the cylindrical structure.

[0089] The auxiliary board bracket 111 , the main board bracket 112 , the bottom bracket 14 and the top bracket 113 are all made of heat-insulating materials, and the drive motor 30 and the transmission assembly are both installed on the main board bracket 112 .

[0090] Embodiment 3

[0091] This embodiment further proposes a biological sample storage device based on the second embodiment, including the basket lifting mechanism described in the second embodiment, so that when the basket lifting mechanism is taking, there is no need to perform a full-area low-temperature operation on the biological sample library, so as to effectively shorten the waiting time for pre-cooling when extracting the basket lifting mechanism and avoid the waste of insulation gas (i.e., liquid nitrogen) resources.

[0092] 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. A basket carrying mechanism, characterized in that: include: Insulation box, transmission assembly, basket hook and drive motor; The heat preservation box comprises a shell, a sealing door and a heat preservation gas conveying member, wherein the shell is hollow inside and has a bottom opening; the sealing door is slidably mounted on the bottom of the shell to open or close the bottom opening; The heat preservation gas conveying member is arranged at one side of the inner cavity of the shell, is connected to the gas source of the heat preservation gas, and has a plurality of micro holes for outputting the heat preservation gas; The transmission assembly is arranged at the other side of the inner cavity of the shell, and is connected to the basket lifting hook on the side facing the heat preservation gas conveying member, a basket lifting channel is arranged between the transmission assembly and the heat preservation gas conveying member, and the basket lifting channel is communicated with the bottom opening; The output end of the driving motor is connected to the transmission assembly, and the driving motor is used to provide driving force to the transmission assembly, and the transmission assembly is used to drive the basket carrying hook to move back and forth along the basket carrying channel; when the sealed door is opened, the basket on the basket carrying hook enters and exits the thermal insulation box through the bottom opening.

2. The basket carrying mechanism according to claim 1, characterized in that: A bottom bracket is disposed at the bottom end of the shell, and the bottom opening is opened on the bottom bracket; A sliding block is provided on the lower surface of the bottom bracket; The upper surface of the sealing door is provided with a guide rail matching the sliding block; Wherein, the sliding block is slidably engaged on the guide rail.

3. The basket carrying mechanism according to claim 2, characterized in that: A rack parallel to the guide rail is embedded on the upper surface of the sealing door, and one end of the rack is exposed outside the shell; An output motor is arranged outside the shell, and a gear which is always meshed with the rack is arranged at the output end of the output motor.

4. The basket carrying mechanism according to claim 1, characterized in that: The heat-insulating gas conveying member is arranged in an S shape along the height direction of the shell, one end of the heat-insulating gas conveying member is suspended in the shell, and the other end of the heat-insulating gas conveying member passes through the outside of the shell to connect to the gas source of the heat-insulating gas.

5. The basket carrying mechanism according to claim 4, characterized in that: The heat-insulating gas conveying member is a liquid nitrogen copper tube, and a sealing member is provided on the outer wall of one end of the liquid nitrogen copper tube connected to the shell; A plurality of microholes are evenly arranged on the liquid nitrogen copper tube.

6. The basket carrying mechanism according to claim 1, characterized in that: The transmission assembly includes a moving body, a sliding plate, an upper limit guide assembly, a lower limit guide assembly, a sliding plate limit guide assembly, a sprocket, a chain, a chain upper end fixing block and a chain lower end fixing block; The mobile body is arranged vertically, and a side away from the basket hook is engaged with an output end of the driving motor; The upper and lower ends of the mobile body are slidably connected to the inner cavity surface of the shell through the upper end limit guide assembly and the lower end limit guide assembly respectively; The sliding plate is arranged at the upper end of the mobile body, and the sliding plate is slidably connected with a side surface of the mobile body toward the basket hook through the sliding plate guide assembly; Two sprockets are provided, and the two sprockets are respectively provided at the upper and lower ends of the mobile body. The chain is wound around the two sprockets, and one side of the chain is fixedly connected to the sliding plate through the upper end fixing block of the chain, and the other side of the chain is fixedly connected to the inner wall of the shell through the lower end fixing block of the chain.

7. The basket carrying mechanism according to claim 6, characterized in that: The upper end limit guide assembly includes two upper end guide wheel rails and four upper end guide wheels, the two upper end guide wheel rails are installed on the inner wall of the shell and are parallel to each other, the four upper end guide wheels are arranged between the two upper end guide wheel rails, and each of the upper end guide wheel rails is slidably connected to the two upper end guide wheels, and the four upper end guide wheels are fixedly connected to the upper end of the mobile body; The lower end limit guide assembly includes two lower end guide wheel rails and four lower end guide wheels, the two lower end guide wheel rails are installed on the mobile body and are parallel to each other, the four lower end guide wheels are arranged outside the two lower end guide wheel rails, and each of the lower end guide wheel rails is slidably connected to the two lower end guide wheels, and the four lower end guide wheels are fixedly connected to the inner wall of the shell; The sliding plate limiting guide assembly includes two sliding plate guide rails and four sliding plate guide wheels. The two sliding plate guide rails are installed on a side surface of the mobile body facing the basket carrying hook and are parallel to each other. Each sliding plate guide rail is slidably connected to the two sliding plate guide wheels, and the four sliding plate guide wheels are fixedly connected to the sliding plate.

8. The basket carrying mechanism according to claim 6, characterized in that: The basket carrying hook is fixedly connected to the sliding plate, and the hook has two symmetrically arranged claws, and a clamping space formed between the two claws is located in the basket carrying channel.

9. The basket carrying mechanism according to claim 1, characterized in that: The housing comprises an auxiliary board bracket, a main board bracket and a top bracket, wherein the auxiliary board bracket and the main board bracket are arranged opposite to each other and spliced ​​into a cylindrical structure with a hollow interior and openings at both ends, and the top bracket is fixedly arranged at the upper end of the cylindrical structure to close the upper end opening of the cylindrical structure; The auxiliary board bracket, the main board bracket and the top bracket are all made of heat-insulating materials, and the drive motor and the transmission assembly are both installed on the main board bracket.

10. A biological sample storage device, characterized in that: The invention comprises the basket carrying mechanism according to any one of claims 1 to 9.

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