Freezing and storing frame sample taking and placing structure

Abstract

The utility model discloses a sample taking and placing structure of a cryopreservation frame, which comprises a frame body detachably arranged at a filling opening of a liquid nitrogen tank and capable of being clamped and positioned with a clamping groove of the filling opening of the liquid nitrogen tank; and the hooking rod is arranged on the rack body. According to the utility model, the frame body is placed at the opening of the opened liquid nitrogen tank, and the hooking rod is arranged on the frame body, so that an operator can hook the cryopreservation frame lifted to the opening of the liquid nitrogen tank onto the hooking rod, and then pushes the clamping assembly and the identification rod to synchronously move according to the position of a two-dimensional coordinate graph of a sample to be taken; and after an operator observes that the identification rod moves to the required position from the transparent identification plate, the required sample is clamped to be taken out of or put into the cryopreservation frame through lifting movement of the clamping assembly, so that the purpose of accurately taking and putting the sample is achieved, meanwhile, the operator takes and places the sample through the clamping assembly, and the working efficiency is greatly improved. The hand does not need to be close to the liquid nitrogen tank opening for a long time, and therefore operation safety can be improved.

Description

Technical Field

[0001] This utility model relates to the field of low-temperature storage equipment technology, and in particular to a sample retrieval and placement structure for a cryogenic rack. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] In biomedical research and clinical sample preservation, cryopreservation racks are widely used to store large quantities of biological samples in low-temperature environments such as liquid nitrogen tanks.

[0004] However, traditional cryopreservation racks present numerous problems when handling sample retrieval and placement. Since cryopreservation racks are typically placed inside liquid nitrogen tanks, to avoid adversely affecting sample viability, they are usually only lifted to the inlet of the liquid nitrogen tank during sample handling. However, this low-temperature environment not only causes discomfort to the operator's hands but also increases the difficulty of operation. Because the samples are densely packed within the cryopreservation rack, precise sample positioning is difficult, resulting in a lengthy retrieval and placement process that fails to meet current requirements for safe and accurate sample handling. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings by providing a cryopreservation rack sample retrieval and placement structure that enables safe and accurate sample retrieval and placement.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a cryopreservation rack sample placement structure, comprising:

[0007] The frame is detachably mounted at the liquid nitrogen tank inlet and can be engaged and positioned with the liquid nitrogen tank inlet slot.

[0008] Hook rods, installed on the frame, are used for the cryogenic racks to be hooked and positioned when raised to the filling port of the liquid nitrogen tank;

[0009] A transparent label is installed on the frame, and the transparent label has a two-dimensional coordinate graph corresponding to the placement position of the frozen rack sample.

[0010] The signpost is installed at the bottom of the transparent signboard;

[0011] A guide assembly, mounted on the frame, is used to guide the marker pole to move horizontally at a set height;

[0012] The clamping component is movably mounted on the marker pole and can move horizontally synchronously with the marker pole. It can also move up and down towards and away from the marker pole to clamp the corresponding sample in the cryopreservation rack when the marker pole moves below the two-dimensional coordinate graph corresponding to the sample.

[0013] Furthermore, the frame includes a frame body that can be fitted onto the liquid nitrogen tank inlet, the frame body is provided with a positioning block for engaging and positioning with the liquid nitrogen tank inlet slot, and a temporary storage box that can be raised and lowered is movably provided on the side of the frame body away from the liquid nitrogen tank inlet, the temporary storage box being used for temporary storage of samples taken out by the clamping assembly.

[0014] Furthermore, the guide assembly includes two Y-axis guide rails disposed on the frame body, and an X-axis guide rail that can move along the Y-axis direction of the frame body is disposed between the two Y-axis guide rails. A guide sleeve that can move along the X-axis direction of the frame body is sleeved on the X-axis guide rail, and the marker rod is mounted on the guide sleeve.

[0015] Furthermore, the clamping assembly includes a telescopic rod located at the bottom of the marker rod and capable of vertical movement. A handle is provided at the bottom end of the telescopic rod, and a fixed clamping plate is provided at one end of the handle near the liquid nitrogen tank inlet. A movable clamping plate is provided on the fixed clamping plate, which can move towards and away from the fixed clamping plate. The clamping assembly also includes a driving component for driving the movable clamping plate to move towards and away from the fixed clamping plate.

[0016] Furthermore, the driving component includes a guide post disposed on the movable clamping plate and passing through the fixed clamping plate. A compression spring is sleeved on the guide post between the movable clamping plate and the fixed clamping plate. The two ends of the compression spring are respectively connected to the movable clamping plate and the fixed clamping plate. The driving component also includes a fixed gripping plate disposed at one end of the handle away from the liquid nitrogen tank inlet and a movable gripping plate slidably disposed on the handle. A pull rope is disposed between the movable gripping plate and the guide post.

[0017] The beneficial effects of this utility model are reflected in:

[0018] This invention utilizes a frame placed at the open inlet of a liquid nitrogen tank. A hook on the frame allows the operator to hook the cryopreservation rack, which has been raised to the inlet, onto the hook. Then, based on the position of the sample on the two-dimensional coordinate map, the clamping assembly and the marker rod move synchronously until the operator observes the marker rod at the desired position through a transparent label. The clamping assembly then moves up and down to retrieve or place the sample from the cryopreservation rack, achieving precise sample retrieval. Furthermore, because the operator retrieves and places samples using the clamping assembly, their hands do not need to be near the liquid nitrogen tank inlet for extended periods, thus improving operational safety. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a structural view of the clamping assembly of this utility model;

[0021] Figure 3 for Figure 2 A magnified view of a portion of point A shown;

[0022] Figure 4 This is a schematic diagram of the working process of this utility model.

[0023] In the picture:

[0024] 1. Frame; 11. Frame body; 12. Positioning block; 13. Temporary storage box; 2. Hook rod; 3. Transparent label plate; 4. Label rod; 5. Guide assembly; 6. Clamping assembly; 61. Telescopic rod; 62. Handle; 63. Fixed clamping plate; 64. Movable clamping plate; 65. Guide post; 66. Compression spring; 67. Fixed gripping plate; 68. Movable gripping plate; 69. Pull rope. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0026] Please see Figure 1-4 This utility model discloses a cryopreservation rack sampling structure, comprising:

[0027] The frame 1 is detachably installed at the liquid nitrogen tank inlet and can be engaged and positioned with the liquid nitrogen tank inlet slot;

[0028] Hook rod 2, set on frame 1, is used for the cryogenic rack to be hooked and positioned when it rises to the filling port of the liquid nitrogen tank;

[0029] A transparent label 3 is set on the frame 1, and a two-dimensional coordinate graph corresponding to the placement position of the frozen rack sample is set on the transparent label 3.

[0030] Signpost 4 is installed at the bottom of transparent signboard 3;

[0031] The guide component 5 is installed on the frame 1 and is used to guide the marker pole 4 to move horizontally at a set height;

[0032] The clamping component 6 is movably mounted on the marker rod 4 and can move horizontally synchronously with the marker rod 4. It can also move up and down towards and away from the marker rod 4. It is used to clamp the corresponding sample in the cryopreservation rack when the marker rod 4 moves below the two-dimensional coordinate graph corresponding to the sample.

[0033] This invention, by placing the frame 1 at the open liquid nitrogen tank inlet, utilizes the hook rod 2 on it to allow the operator to hook the cryopreservation rack raised to the liquid nitrogen tank inlet onto the hook rod 2. Then, based on the position of the two-dimensional coordinate map of the sample to be retrieved, the clamping component 6 and the indicator rod 4 are moved synchronously until the operator can observe the indicator rod 4 moving to the desired position through the transparent indicator plate 3. Afterward, the required sample is clamped and removed or placed into the cryopreservation rack by raising and lowering the clamping component 6, achieving the purpose of precise sample retrieval and placement. At the same time, because the operator retrieves and places the sample through the clamping component 6, their hands do not need to be close to the liquid nitrogen tank inlet for a long time, thereby improving operational safety.

[0034] In one embodiment, the frame 1 includes a frame body 11 that can be fitted onto the liquid nitrogen tank opening. The frame body 11 is provided with a positioning block 12 for engaging and positioning with the liquid nitrogen tank opening slot. A temporary storage box 13 that can be lifted and moved is movably provided on the side of the frame body 11 away from the liquid nitrogen tank opening. The temporary storage box 13 is used for temporarily storing samples taken out by the clamping assembly 6.

[0035] This design allows the frame 1 to be positioned using the slot at the liquid nitrogen tank inlet for the cryopreservation rack handle. This ensures that after the frame 1 is in place, the operator can accurately locate the required sample by using the transparent label plate 3 and the label rod 4. At the same time, by setting up the temporary storage box 13, multiple samples can be temporarily stored inside, making it convenient for the operator to retrieve them all at once after all samples have been retrieved.

[0036] In practice, the temporary storage box 13 is equipped with multiple baffles, which divide the internal space of the temporary storage box 13 into multiple placement areas for placing each sample and avoiding collisions between adjacent samples. By setting RFID tags on the samples and installing a reader for reading RFID tags in the temporary storage box 13, the RFID tags of the samples can be read by the reader after they are moved into the temporary storage box 13, thereby verifying the accuracy of the samples taken.

[0037] In one embodiment, the guide component 5 includes two Y-axis guide rails disposed on the frame 11, an X-axis guide rail that can move along the Y-axis direction of the frame 11 is disposed between the two Y-axis guide rails, a guide sleeve that can move along the X-axis direction of the frame 11 is sleeved on the X-axis guide rail, and an indicator rod 4 is mounted on the guide sleeve.

[0038] This design allows the marker pole 4 to move horizontally at a set height, constrained by the Y-axis and X-axis guide rails, ensuring that operators can observe the corresponding marker pole 4 through the transparent marker plate 3.

[0039] In one embodiment, the clamping assembly 6 includes a telescopic rod 61 located at the bottom of the marker rod 4 and capable of vertical movement. A handle 62 is provided at the bottom end of the telescopic rod 61. A fixed clamping plate 63 is provided at one end of the handle 62 near the liquid nitrogen tank inlet. A movable clamping plate 64 is provided on the fixed clamping plate 63 and is capable of moving towards and away from the fixed clamping plate 63. The clamping assembly 6 also includes a driving component for driving the movable clamping plate 64 to move towards and away from the fixed clamping plate 63.

[0040] This design, by setting a driving component to control the distance between the movable clamping plate 64 and the fixed clamping plate 63, allows the clamping assembly 6 to be adjusted according to the diameter of the sample being clamped, thereby improving the applicability of the clamping assembly 6.

[0041] In one embodiment, the driving component includes a guide post 65 disposed on the movable clamping plate 64 and passing through the fixed clamping plate 63. A compression spring 66 is sleeved on the guide post 65 between the movable clamping plate 64 and the fixed clamping plate 63. The two ends of the compression spring 66 are respectively connected to the movable clamping plate 64 and the fixed clamping plate 63. The driving component also includes a fixed gripping plate 67 disposed at one end of the handle 62 away from the liquid nitrogen tank opening and a movable gripping plate 68 slidably disposed on the handle 62. A pull rope 69 is disposed between the movable gripping plate 68 and the guide post 65.

[0042] This design, by setting a movable grip plate 68 and a fixed grip plate 67 at the end of the handle 62 away from the liquid nitrogen tank opening, allows the operator to operate without having to bring their hands close to the liquid nitrogen tank opening. By pushing the movable grip plate 68 towards the fixed grip plate 67, the pull rope 69 is pulled and moved, which in turn moves the movable clamping plate 64 towards the fixed clamping plate 63 until the movable clamping plate 64 and the fixed clamping plate 63 clamp the sample. After that, the handle 62 can be moved to remove or place the sample, improving the safety of the handling operation.

[0043] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0044] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0045] Additionally, "multiple" refers to two or more.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cryo rack pick and place structure, characterized by, include: The frame (1) is detachably installed at the liquid nitrogen tank inlet and can be engaged and positioned with the liquid nitrogen tank inlet slot; Hook rod (2) is set on frame (1) for the cryogenic rack to be hooked and positioned when it rises to the filling port of liquid nitrogen tank; A transparent label plate (3) is set on the frame (1), and the transparent label plate (3) is provided with a two-dimensional coordinate diagram corresponding to the placement position of the frozen rack sample; The signpost (4) is installed at the bottom of the transparent signboard (3); A guide component (5) is installed on the frame (1) to guide the marker pole (4) to move horizontally at a set height; The clamping component (6) is movably mounted on the marker rod (4), and can move horizontally synchronously with the marker rod (4), and can move up and down towards and away from the marker rod (4), and is used to clamp the corresponding sample in the cryopreservation rack when the marker rod (4) moves to the bottom of the two-dimensional coordinate graph corresponding to the sample.

2. The structure for taking and placing a vial from a cryogenic shelf according to claim 1, wherein: The frame (1) includes a frame body (11) that can be fitted onto the liquid nitrogen tank opening. The frame body (11) is provided with a positioning block (12) for engaging and positioning with the liquid nitrogen tank opening slot. A temporary storage box (13) that can be lifted and moved is movably provided on the side of the frame body (11) away from the liquid nitrogen tank opening. The temporary storage box (13) is used for temporarily storing samples taken out by the clamping assembly (6).

3. The structure for taking and placing a vial in a cryogenic storage rack according to claim 2, wherein: The guide assembly (5) includes two Y-axis guide rails disposed on the frame (11), and an X-axis guide rail that can move along the Y-axis direction of the frame (11) is disposed between the two Y-axis guide rails. A guide sleeve that can move along the X-axis direction of the frame (11) is sleeved on the X-axis guide rail, and the marker rod (4) is mounted on the guide sleeve.

4. The structure for taking and placing a vial from a cryogenic shelf according to claim 1, wherein: The clamping assembly (6) includes a telescopic rod (61) located at the bottom of the marker rod (4) and capable of moving up and down. A handle (62) is provided at the bottom end of the telescopic rod (61). A fixed clamping plate (63) is provided at one end of the handle (62) near the liquid nitrogen tank inlet. A movable clamping plate (64) is provided on the fixed clamping plate (63) and capable of moving towards and away from the fixed clamping plate (63). The clamping assembly (6) also includes a driving component for driving the movable clamping plate (64) to move towards and away from the fixed clamping plate (63).

5. The rack for taking and placing samples for cryopreservation according to claim 4, characterized in that: The driving component includes a guide post (65) disposed on the movable clamping plate (64) and passing through the fixed clamping plate (63). A compression spring (66) is sleeved on the guide post (65) between the movable clamping plate (64) and the fixed clamping plate (63). The two ends of the compression spring (66) are respectively connected to the movable clamping plate (64) and the fixed clamping plate (63). The driving component also includes a fixed gripping plate (67) disposed at one end of the handle (62) away from the liquid nitrogen tank opening and a movable gripping plate (68) slidably disposed on the handle (62). A pull rope (69) is disposed between the movable gripping plate (68) and the guide post (65).

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