Single storage device, additional storage device, and variable sample storage device

Abstract

The utility model provides a single storage device, an additional storage device and a variable sample storage device, the additional storage device is spliced and combined with the single storage device through an additional splicing part and a single splicing part, and a single storage chamber of the single storage device and an additional storage chamber of the additional storage device jointly form a double-body storage chamber. The single storage area of the single storage chamber and the additional storage chamber are each provided with a storage bin body, and the transfer mechanism is arranged between the two storage bin bodies and used for transferring the sample frames on the two storage bin bodies. The single storage device is designed to be a small-capacity device and can be used independently, and the small-capacity sample storage requirement of a small hospital is met. When large-capacity sample storage is needed, the additional storage device can be spliced on the single storage device, and the storage capacity of the sample is increased by utilizing the capacity of the storage bin body arranged in the additional storage device, so that the large-capacity variable sample storage device is formed.

Description

Technical Field

[0001] This application relates to the field of in vitro diagnostic technology, and in particular to single-unit storage devices, additional storage devices, and variable sample storage devices. Background Technology

[0002] Low-temperature sample storage devices are used in the post-processing stage of automated testing laboratories. They are used to automatically store samples at low temperatures on automated production lines so that the samples can be preserved for a longer period of time and can be retrieved for testing when retesting is required.

[0003] Large hospitals typically have larger sample volumes, requiring high-capacity cryogenic sample storage devices, while smaller hospitals have smaller sample volumes and only need low-capacity cryogenic sample storage devices. However, current cryogenic sample storage devices cannot meet the sample storage needs of hospitals of different sizes. Therefore, developing cryogenic sample storage devices that can meet the sample storage needs of hospitals of different sizes is one of the development trends of cryogenic sample storage devices. Utility Model Content

[0004] Therefore, it is necessary to provide a single-unit storage device, an additional storage device, and a variable sample storage device to address the aforementioned technical problems.

[0005] This application provides a single-unit storage device, the single-unit storage device comprising:

[0006] The single device body has a single storage chamber inside. The single device body has a front side, a rear side, a left side, and a right side around its circumference. The single storage chamber of the single device body is provided with a single storage area. The single storage area is used to set up a storage compartment. The storage compartment is used to set up a number of sample racks. The sample racks are used to load sample tubes. The left or right side of the single device body is provided with a single splicing part and a detachable single movable door. The left or right side of the single device body is used to splice additional storage devices through the single splicing part.

[0007] A transfer mechanism is provided, which is located in the single storage chamber of the single device body, and the single storage area and the transfer mechanism are respectively located near the left and right sides of the single device body. The transfer mechanism is used to transfer sample racks.

[0008] In one embodiment, the transfer mechanism is located on the left side of the device near the main body of the single device, the single device storage area is located on the right side of the device near the main body of the single device, and the single device splicing part is located on the left side of the device of the single device storage device.

[0009] This application provides an additional storage device configured to be attached to the single-unit storage device, comprising:

[0010] The auxiliary device body has an additional storage chamber inside. The auxiliary device body has a front side, a rear side, a left side, and a right side around its circumference. The additional storage chamber of the auxiliary device body is used to house another storage compartment. The storage compartment is used to house several sample racks for loading sample tubes. The left and right sides of the auxiliary device body are respectively provided with an additional splicing part and a splicing assembly door frame. The auxiliary device body is used to splice to the single storage device through the additional splicing part. The splicing assembly door frame is used to assemble the single movable door of the single storage device.

[0011] In one embodiment, the splicing assembly door frame is provided on the left side of the additional storage device, and the additional splicing part is provided on the right side of the additional storage device.

[0012] This application provides a variable sample storage device, the variable sample storage device comprising:

[0013] The single-unit storage device;

[0014] The additional storage device is assembled with the single storage device through the additional splicing part and the single splicing part. The single storage chamber of the single storage device and the additional storage chamber of the additional storage device together form a dual storage chamber. The single storage area of ​​the single storage chamber and the additional storage chamber are each provided with a storage compartment. The transfer mechanism is arranged between the two storage compartments for transferring several sample racks on the two storage compartments.

[0015] In one embodiment, the transfer mechanism includes a displacement component and a gripping component, defining an X-axis, Y-axis, and Z-axis direction within the dual-body storage chamber. The displacement component is connected to the gripping component and is used to control the gripping component to move within the dual-body storage chamber along the X-axis, Y-axis, and Z-axis directions. The gripping component is used to control the sample holder to move relative to the storage chamber along the X-axis direction under the drive of the displacement component.

[0016] In one embodiment, the crawling component includes:

[0017] A gripping element for gripping a sample holder;

[0018] A driving device, connected to the gripping element, is used to control the gripping element to grip the sample rack or move away from the sample rack.

[0019] In one embodiment, the driving device is a rotary motor, the output shaft of which is connected to the gripping element. The axis of the output shaft of the rotary motor is perpendicular to the X-axis. The rotary motor controls the gripping element to rotate along the axis of the output shaft of the rotary motor. The number of gripping elements is set to two, and the output shaft of the rotary motor is connected to the two gripping elements. The output shaft of the rotary motor has a forward rotation direction and a reverse rotation direction. The rotary motor drives one of the gripping elements to rotate along the forward rotation direction, thereby gripping a sample rack on one of the storage compartments. The rotary motor also drives the other gripping element to rotate along the reverse rotation direction, thereby gripping a sample rack on the other storage compartment.

[0020] In one embodiment, the transfer mechanism further includes a propulsion assembly, the displacement assembly being connected to the propulsion assembly for controlling the movement of the propulsion assembly within the storage chamber of the device body along the Y-axis and Z-axis directions, the propulsion assembly being used to apply a pushing force to the sample holder along the Y-axis direction; and / or,

[0021] Both storage compartments include a plurality of storage slots, which are used to house sample racks, which are used to move in and out of the storage slots along the X-axis; and / or,

[0022] The sample holder is provided with gripping holes; and / or,

[0023] The sample rack is equipped with a data storage chip, which is used to store sample data information of the sample rack; and / or,

[0024] The transfer mechanism includes a data reading device, which is used to read sample data information from the data storage chip of the sample holder.

[0025] In one embodiment, the sample storage device includes:

[0026] A refrigeration device, wherein the refrigeration device is connected to the single-unit storage device;

[0027] A temperature control device, which is connected to the refrigeration device.

[0028] Among the aforementioned single-unit storage device, additional storage device, and variable sample storage device, the variable sample storage device is composed of a single-unit storage device and additional storage devices, representing a modular design. In this case, the single-unit storage device can be designed as a small-capacity device, with the small capacity determined by the capacity of the storage compartments within it. The single-unit storage device can be used independently, meeting the small-capacity sample storage needs of small hospitals. When large-capacity sample storage is required, additional storage devices can be added to the single-unit storage device, utilizing the capacity of the storage compartments within the additional storage devices to increase the sample storage capacity, thus transforming it into a large-capacity variable sample storage device. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a single-unit storage device provided in one embodiment of this application.

[0030] Figure 2 For example Figure 1 The diagram shows the internal structure of a single storage device.

[0031] Figure 3 This is a schematic diagram showing the splicing direction of a single storage device and an additional storage device provided in one embodiment of this application.

[0032] Figure 4 This is a schematic diagram showing the splicing state of a single storage device and an additional storage device provided in one embodiment of this application.

[0033] Figure 5 This is a three-dimensional structural diagram of a sample holder provided in one embodiment of this application.

[0034] Figure 6 This is a state diagram of a gripping component gripping a sample rack according to one embodiment of this application.

[0035] Figure 7 This is a partially enlarged structural diagram of a transfer mechanism provided in one embodiment of this application.

[0036] Icon labels:

[0037] 100. Storage compartment; 200. Sample rack; 300. Sample tube;

[0038] 101. Grip hole; 102. Data storage chip;

[0039] 1000. Main body of the single unit; 2000. Main body of the auxiliary unit; 3000. Transfer mechanism; 4000. Refrigeration unit;

[0040] 1001. Individual storage chamber; 1002. Individual movable door; 2001. Additional storage chamber; 2002. Assembled door frame;

[0041] 3100, Displacement component; 3200, Grasping component; 3300, Propulsion component;

[0042] 3210, gripping element; 3220, driving element. Detailed Implementation

[0043] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0044] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0045] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0049] See Figures 1 to 7 As shown, this application provides a variable sample storage device, which includes a single storage device and an additional storage device. The single storage device is as follows: Figure 1 and Figure 2 As shown, additional storage devices are as follows Figure 3 and Figure 4 As shown, the additional storage device is configured to be spliced ​​onto the single storage device, thereby forming the aforementioned variant sample storage device by splicing the additional storage device relative to the single storage device.

[0050] Continue reading Figure 1 and Figure 2 As shown, the single-unit storage device includes a single-unit device body 1000, the interior of which has a single-unit storage chamber 1001, and the single-unit device body 1000 has a front side, a rear side, a left side, and a right side in its circumferential direction. For example, in... Figure 1 In the three-dimensional configuration shown, the left half of the main body 1000 of the single device is the front side of the device, and the right half of the main body 1000 of the single device is the left side of the device. Figure 2 In the three-dimensional state shown, the left half of the single device body 1000 is the left side of the single device body 1000, and the right half of the single device body 1000 is the rear side of the single device body 1000.

[0051] The main body 1000 of the single device has a single storage area in its single storage chamber 1001. The single storage area is used to house storage compartments 100, which in turn house several sample racks 200 for loading sample tubes 300. A single splicing section and a detachable single movable door 1002 are located on the left or right side of the main body 1000. The left or right side of the main body 1000 is used to splice additional storage devices via the single splicing section. A transfer mechanism 3000 is located in the single storage chamber 1001 of the main body 1000. The transfer mechanism 3000 is used to transfer the sample racks 200, and the single storage area and the transfer mechanism 3000 are respectively located near the left and right sides of the main body 1000.

[0052] See Figure 3 and Figure 4 As shown, the auxiliary device body 2000 includes an auxiliary storage chamber 2001 inside the auxiliary device body 2000. The auxiliary device body 2000 has a device front side, a device rear side, a device left side, and a device right side in the circumferential direction. In one embodiment, as shown... Figure 3 In the three-dimensional state shown, the left half of the auxiliary device main body 2000 can be the front side of the auxiliary device main body 2000, and the right half of the auxiliary device main body 2000 can be the left side of the auxiliary device main body 2000.

[0053] In addition, the front and rear sides of the auxiliary device body 2000 can be symmetrical, and the left and right sides of the auxiliary device body 2000 can also be symmetrical. Therefore, the front and rear sides of the auxiliary device body 2000 can be interchanged, and the left and right sides of the auxiliary device body 2000 can also be interchanged.

[0054] like Figure 3 As shown, the additional storage chamber 2001 of the auxiliary device main body 2000 is used to house another storage compartment 100. The storage compartment 100 is used to house several sample racks 200, which are used to load sample tubes 300. Additional splicing parts and splicing assembly door frames 2002 are respectively provided on the left and right sides of the auxiliary device main body 2000. The auxiliary device main body 2000 is used to splice to the individual storage device via the additional splicing parts, i.e., to the individual device main body 1000 of the individual storage device. The splicing assembly door frame 2002 is used to assemble the individual movable door 1002 of the individual storage device. The storage compartment 100 provided on the individual device main body 1000 and the auxiliary device main body 2000 are the same storage compartment 100.

[0055] As can be seen from the above, based on the structural design of the single storage device and the additional storage device, in one embodiment, the additional storage device can be spliced ​​and combined with the single storage device through the additional splicing part and the single splicing part. The single storage chamber 1001 of the single storage device and the additional storage chamber 2001 of the additional storage device together constitute a dual storage chamber. The single storage area of ​​the single storage chamber 1001 and the additional storage chamber 2001 are each provided with a storage compartment 100. The transfer mechanism 3000 is arranged between the two storage compartments 100 for transferring several sample racks 200 on the two storage compartments 100.

[0056] For example, in such Figure 3 In the three-dimensional configuration shown, the additional storage device corresponds to the left side of the main body 1000 of the single device. A splicing assembly frame 2002 is provided on the left side of the additional storage device, and an additional splicing part is provided on the right side of the additional storage device. This allows the additional storage device to be spliced ​​to the left side of the main body 1000 of the single device via the single splicing part, and a variable sample storage device is formed by the splicing combination of the main body 1000 of the single device and the additional storage device.

[0057] When the auxiliary device main body 2000 of the additional storage device is spliced ​​to the left side of the single device main body 1000, the single movable door 1002 of the single device main body 1000 can be removed. If the left side of the single device main body 1000 has a sealing plate, the sealing plate can also be removed at the same time. Then, the added auxiliary device main body 2000 and the single device main body 1000 are spliced ​​and fixed together by the single splicing part and the auxiliary splicing part. Then, the single movable door 1002 removed from the single device main body 1000 is installed on the splicing assembly door frame 2002 of the auxiliary device main body 2000 to form a complete variable sample storage device.

[0058] The transfer mechanism 3000 is located on the left side of the unit body 1000, and the unit storage area is located on the right side of the unit body 1000. The unit splicing section is located on the left side of the unit storage unit. Therefore, as... Figure 3 As shown, although the transfer mechanism 3000 is located in the single storage device, it is located between the two storage compartments 100 set in the single device body 100 and the auxiliary device body 2000, and can be used to transfer several sample racks 200 on the two storage compartments 100.

[0059] As shown above, the aforementioned variable sample storage device consists of a single storage unit and an additional storage unit, representing a modular design. In this case, the single storage unit can be designed as a small-capacity device, with the small capacity determined by the capacity of the storage compartment 100 within it. The single storage unit can be used independently, meeting the small-capacity sample storage needs of small hospitals. When large-capacity sample storage is required, additional storage units can be added to the single storage unit, utilizing the capacity of the storage compartment 100 within the additional storage unit to increase the sample storage capacity, thus transforming it into a large-capacity variable sample storage device.

[0060] The refrigeration unit 4000 can be connected to the individual storage unit, and the temperature control unit is also connected to the refrigeration unit 4000. The refrigeration unit 4000 can be connected to the individual storage unit using a detachable assembly method, thus effectively reducing the overall height during transport into the laboratory and improving maneuverability. Furthermore, the variable sample storage unit is assembled from relatively detachable individual storage units and additional storage units, ensuring modularity for shipment and preventing size-related entry restrictions.

[0061] In one embodiment, the transfer mechanism 3000 includes a displacement component 3100 and a gripping component 3200, defining an X-axis direction, a Y-axis direction, and a Z-axis direction in the dual-body storage chamber. The displacement component 3100 is connected to the gripping component 3200 and is used to control the gripping component 3200 to move its position in the dual-body storage chamber along the X-axis direction, the Y-axis direction, and the Z-axis direction. The gripping component 3200 is used to control the sample rack 200 to move its position relative to the storage chamber 100 along the X-axis direction under the drive of the displacement component 3100.

[0062] Both storage compartments 100 contain several storage slots for mounting sample racks 200, which move in and out of the storage slots along the X-axis. The storage compartments 100 are located within the storage chamber of the main body of the device. Each storage compartment is arranged in columns along the Y-axis and rows along the Z-axis. Each storage slot can be used to mount a sample rack 200, allowing the sample rack 200 to be positioned in any of the storage slots as needed.

[0063] In one embodiment, the gripping assembly 3200 includes a gripping element 3210 and a driving device 3220. The gripping element 3210 grips the sample holder 200, and the driving device 3220 is connected to the gripping element 3210 and controls the gripping element 3210 to grip or move away from the sample holder 200. In this case, the displacement assembly 3100 can be used to control the movement of the gripping assembly 3200 within the storage chamber of the device body along the X-axis, Y-axis, and Z-axis directions. That is, the displacement assembly 3100 can control the gripping assembly 3200 to move within the storage chamber of the device body along the X-axis, Y-axis, or Z-axis directions.

[0064] The movement in the X, Y, and Z axes can be simultaneous or performed separately, depending on the motion requirements of the gripping component 3200, and is not limited here. Based on the control of the gripping component 3200 by the displacement component 3100, the gripping component 3200 can move in three-dimensional space within the storage chamber of the device body.

[0065] In one embodiment, the gripping component 3200, driven by the displacement component 3100, controls the movement of the sample rack 200 relative to the storage compartment of the storage chamber 100 along the X-axis direction. In this case, the displacement component 3100 controls the movement of the gripping component 3200 in the Y-axis and Z-axis directions primarily for movement relative to the storage chamber 100, thereby moving it to any one of the storage compartments contained within the storage chamber 100. The displacement component 3100 controls the movement of the gripping component 3200 in the X-axis direction primarily for transferring the sample rack 200 relative to the storage compartment of the storage chamber 100, including moving the sample rack 200 out of the storage compartment of the storage chamber 100 and moving the sample rack 200 into the storage compartment of the storage chamber 100.

[0066] As can be seen from the above, when the displacement component 3100 controls the gripping component 3200, it moves along the X-axis direction, which can be used to control the gripping component 3200 to move out of or into the sample rack 200 relative to the storage compartment 100 along the X-axis direction. Compared with the existing sample rack 200 transfer method, the transfer method of the sample rack 200 in this application is a lateral push-pull method, that is, the sample rack 200 is pushed or pulled out laterally along the X-axis direction without lifting. This lateral push-pull movement method only controls the sample rack 200 to move laterally (X-axis direction) when moving out of or into the sample rack 200, and does not cause any movement in the height direction.

[0067] Therefore, the transfer of the sample rack 200 will not occupy space in the height direction (Z-axis direction). This means that the height of the storage chamber of the main body of the device does not need to be increased for the movement of the displacement component 3100. The displacement component 3100 does not need to increase the design height for avoidance when moving out of or into the sample rack 200. This allows the height design space of the sample storage device to be reduced, so that the storage chamber of the main body of the device can accommodate more sample racks 200 and increase the storage ratio of the sample racks 200.

[0068] The gripping assembly 3200 includes a gripping element 3210 and a driving device 3220. The gripping element 3210 is used to grip the sample holder 200. The gripping method can include various methods such as hooking, snap-fitting, magnetic connection, adhesion, and clamping; there is no limitation on these methods, as long as they meet the gripping requirements and facilitate the connection or separation of the sample holder 200. For example, the sample holder 200 is provided with a gripping hole 101, and the gripping method can use a hook that cooperates with the gripping hole 101.

[0069] The drive device 3220 is connected to the gripping element 3210. The drive device 3220 can provide power to control the gripping element 3210 to grip the sample rack 200 or move away from the sample rack 200, such that the gripping element 3210 grips the sample rack 200 when it is close to the sample rack 200, and moves away from the sample rack 200 after releasing its grip.

[0070] The driving device 3220 can be selected in various ways. For example, in one embodiment, the driving device 3220 is a rotary motor. The output shaft of the rotary motor is connected to the gripping element 3210. The axis of the output shaft of the rotary motor is perpendicular to the X-axis direction. The rotary motor is used to control the gripping element 3210 to rotate along the axis of the output shaft of the rotary motor. The number of gripping elements 3210 is set to two. The output shaft of the rotary motor is connected to the two gripping elements 3210. The output shaft of the rotary motor has a forward rotation direction and a reverse rotation direction. The rotary motor is used to drive one of the gripping elements 3210 to rotate along the forward rotation direction, thereby gripping the sample rack 200 on one of the storage compartments 100. The rotary motor is also used to drive the other gripping element 3210 to rotate along the reverse rotation direction, thereby gripping the sample rack 200 on the other storage compartment 100.

[0071] The displacement component 3100 may include a first guide rail, a second guide rail, and a component end platform. Both the first guide rail and the second guide rail are linear rails. The guide trajectory of the first guide rail is parallel to the Y-axis direction, and the guide trajectory of the second guide rail is parallel to the Z-axis direction.

[0072] Therefore, the first guide rail is set in the storage chamber of the main body of the device, and the second guide rail can be movably assembled on the first guide rail along the guide trajectory of the first guide rail and reciprocate linearly along the Y-axis. The component end platform is movably assembled on the second guide rail along the guide trajectory of the second guide rail and reciprocates linearly along the Z-axis. At this time, the gripping component 3200 is set on the component end platform and moves synchronously with the component end platform.

[0073] Meanwhile, the end platform of the component can also be equipped with a third guide rail. The guide trajectory of the third guide rail is parallel to the X-axis direction. The gripping component 3200 is movably assembled on the third guide rail along the guide trajectory of the third guide rail and reciprocates linearly along the X-axis direction.

[0074] In one embodiment, the transfer mechanism 3000 further includes a propulsion component 3300. A displacement component 3100 is connected to the propulsion component 3300 and controls its movement within the storage chamber of the device body along the Y-axis and Z-axis directions. The propulsion component 3300 applies a pushing force to the sample rack 200 along the X-axis. When the propulsion component 3300 is opposite a storage compartment, it can apply a pushing force to the sample rack 200 along the Y-axis, pushing the sample rack 200 out. In one embodiment, the propulsion component 3300 includes a propulsion device that applies a pushing force to the sample rack 200 along the Y-axis. The propulsion device can be any mechanism capable of providing linear pushing force, such as a linear cylinder, a linear telescopic rod, etc., without limitation.

[0075] The sample rack 200 is equipped with a data storage chip 102, which stores sample data information of the sample rack 200. The transfer mechanism 3000 includes a data reading device, which can be mounted on the end platform of the component. The data reading device is used to read the sample data information from the data storage chip 102 of the sample rack 200. Therefore, the transfer mechanism 3000 can read sample data information during the transfer of the sample rack 200.

[0076] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A single storage device, characterized by, The single storage device comprises: a single device body, an inside of the single device body having a single storage chamber, a circumference of the single device body having a device front side, a device back side, a device left side and a device right side, a single storage area in the single storage chamber of the single device body, the single storage area being configured to have a storage compartment body, the storage compartment body being configured to have a plurality of sample racks, the sample racks being configured to load sample tubes, a single splicing part and a detachable single movable door being disposed on the device left side or the device right side of the single device body, the device left side or the device right side of the single device body being configured to splice an additional storage device through the single splicing part; a transfer mechanism, the transfer mechanism being disposed in the single storage chamber of the single device body, the single storage area and the transfer mechanism being disposed close to the device left side and the device right side of the single device body respectively, the transfer mechanism being configured to transfer the sample racks.

2. The single storage device of claim 1, wherein, The transfer mechanism is disposed close to the device left side of the single device body, the single storage area is disposed close to the device right side of the single device body, and the device left side of the single storage device is configured to have the single splicing part.

3. An additional storage device, characterized by The additional storage device is configured to be spliced to the single storage device of claim 1 or 2, comprising: an additional device body, an inside of the additional device body having an additional storage chamber, a circumference of the additional device body having a device front side, a device back side, a device left side and a device right side, the additional storage chamber of the additional device body being configured to have another storage compartment body, the storage compartment body being configured to have a plurality of sample racks, the sample racks being configured to load sample tubes, an additional splicing part and a splicing assembly door frame being disposed on the device left side and the device right side of the additional device body respectively, the additional device body being configured to be spliced to the single storage device through the additional splicing part, the splicing assembly door frame being configured to assemble the single movable door of the single storage device.

4. The additional storage device of claim 3, wherein, The device left side of the additional storage device is configured to have the splicing assembly door frame, and the device right side of the additional storage device is configured to have the additional splicing part.

5. A variable volume sample storage device, characterized by, The variable sample storage device comprises: the single storage device of claim 1 or 2; the additional storage device of claim 3 or 4, the additional storage device being spliced and combined with the single storage device through the additional splicing part and the single splicing part, a single storage chamber of the single storage device and an additional storage chamber of the additional storage device jointly forming a double storage chamber, the single storage area of the single storage chamber and the additional storage chamber each being configured to have a storage compartment body, the transfer mechanism being disposed between the two storage compartment bodies and being configured to transfer a plurality of sample racks on the two storage compartment bodies.

6. The variable volume sample storage device of claim 5, wherein, The transport mechanism comprises a displacement assembly and a grabbing assembly, and defines an X-axis direction, a Y-axis direction and a Z-axis direction in the double-body storage chamber. The displacement assembly is connected to the grabbing assembly and is configured to control the grabbing assembly to move in the X-axis direction, the Y-axis direction and the Z-axis direction in the double-body storage chamber. The grabbing assembly is configured to move a sample rack relative to the storage chamber body in the X-axis direction under the driving of the displacement assembly.

7. The variable volume sample storage device of claim 6, wherein, The grabbing assembly comprises: a grabbing element configured to grab a sample rack; a driving device connected to the grabbing element and configured to control the grabbing element to grab or move away from the sample rack.

8. The variable volume sample storage device of claim 7, wherein, The driving device is a rotary motor, an output shaft of the rotary motor is connected to the grabbing element, an axis of the output shaft of the rotary motor is perpendicular to the X-axis direction, the rotary motor is configured to control the grabbing element to rotate around the axis of the output shaft of the rotary motor, the number of the grabbing elements is two, the output shaft of the rotary motor is connected to the two grabbing elements, the output shaft of the rotary motor has a forward rotation direction and a reverse rotation direction, the rotary motor is configured to drive one of the grabbing elements to rotate around the axis in the forward rotation direction, so as to grab a sample rack on one of the storage chamber bodies, and the rotary motor is configured to drive the other grabbing element to rotate around the axis in the reverse rotation direction, so as to grab a sample rack on the other storage chamber body.

9. The variable volume sample storage device of claim 8, wherein, The transport mechanism further comprises a pushing assembly, the displacement assembly is connected to the pushing assembly and is configured to control the pushing assembly to move in the Y-axis direction and the Z-axis direction in the storage chamber of the device body, and the pushing assembly is configured to apply a pushing force to the sample rack in the Y-axis direction; and / or Each of the two storage chamber bodies comprises a plurality of storage positions, the storage positions are configured to arrange sample racks, and the sample racks are configured to enter or exit the storage positions in the X-axis direction; and / or The sample rack is provided with a grabbing hole; and / or The sample rack is provided with a data storage chip, the data storage chip is configured to store sample data information of the sample rack; and / or The transport mechanism comprises data reading device, the data reading device is configured to read the sample data information of the data storage chip of the sample rack.

10. The variable volume sample storage device of claim 5, wherein, The sample storage device comprises: a refrigeration device connected to the single-body storage device; and a temperature control device connected to the refrigeration device.

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