A movable laboratory sample sub-packaging and low-temperature storage device

Abstract

The utility model discloses a movable laboratory sample subpackaging and low temperature storage device belongs to laboratory low temperature storage equipment technical field, and the originality is adopted semiconductor refrigeration technology, according to the downward propagation of cold source and its single side refrigeration, the other side heating characteristic, semiconductor refrigeration piece matrix sets up in the top of freezer, and the heating surface is close to the upper end surface of freezer, and through the upper end surface carries out heat dissipation, and the cold source is contacted with the freezing storehouse downward, in order to further promote the cooling effect, the circulation wind structure of the application increases, and the contact area of cold source and freezing storehouse is increased, and the four end surfaces of freezing storehouse spread the cold air inwards, and the cooling effect is remarkable, in addition, the application is specially set up screw pump subpackaging mechanism and gear pump subpackaging mechanism, and the screw pump subpackaging mechanism is good at subpackaging high viscosity sample, and the gear pump subpackaging mechanism is good at subpackaging low viscosity sample, plus the setting of walking wheel, can realize the cross -region movement cooperation demand, different viscosity sample quick subpackaging demand and high -precision subpackaging demand simultaneously.

Description

Technical Field

[0001] This application belongs to the technical field of laboratory low-temperature storage equipment, specifically relating to a portable device that integrates sample dispensing and low-temperature storage functions, suitable for temperature-sensitive sample processing in pharmaceutical companies and medical testing centers. Background Technology

[0002] Laboratory sample aliquoting and cryogenic storage refers to the process of distributing samples into different containers according to specific specifications and preserving them at low temperatures. This is a common operation in laboratory work, involving distributing samples into different containers according to specific specifications and then storing them at low temperatures. This preservation method can effectively extend the shelf life of samples and prevent problems such as deterioration and degradation that easily occur at room temperature. When aliquoting samples, it is important to ensure that the sample volume in each container is consistent to avoid affecting the accuracy of experimental results. At the same time, temperature control is crucial during cryogenic storage to ensure sample quality. This is especially important in biopharmaceutical research and development, where nucleic acid and protein samples require continuous cryogenic protection and extremely high aliquoting precision. Laboratories generally use fixed storage equipment, which is unsuitable for cross-regional collaboration needs. Utility Model Content

[0003] The purpose of this application is to provide a portable laboratory sample dispensing and low-temperature storage device. It innovatively employs semiconductor refrigeration technology. Based on the downward propagation of cold source and its characteristic of cooling on one side and heating on the other, a semiconductor refrigeration chip matrix is ​​arranged on the top of the freezing chamber. The heating surface is in close contact with the upper surface of the freezing chamber, dissipating heat through the upper surface. The cold source contacts the freezing chamber downwards. To further improve the cooling effect, this application adds a circulating air structure, increasing the contact area between the cold source and the freezing chamber. Cold air propagates inwards through the four ends of the freezing chamber, resulting in a significant cooling effect. Furthermore, this application specifically includes a screw pump dispensing mechanism and a gear pump dispensing mechanism. The screw pump dispensing mechanism is good at dispensing high-viscosity samples, while the gear pump dispensing mechanism is good at dispensing low-viscosity samples. Combined with the inclusion of wheels, it can simultaneously meet the needs of cross-regional mobile collaboration, rapid dispensing of samples of different viscosities, and high-precision dispensing.

[0004] To achieve the above objectives, this utility model provides a portable laboratory sample dispensing and low-temperature storage device, which includes a freezer and a dispensing box.

[0005] The freezer is arranged from bottom to top as follows: a lithium battery compartment, a ventilation duct, a freezer compartment, and a semiconductor refrigeration chip matrix. The lithium battery compartment is located at the bottom of the freezer and contains lithium batteries to provide power. The ventilation duct is installed above the lithium battery compartment, and the freezer compartment is located on the upper surface of the ventilation duct. A through hole 'a' is opened on the left end face of the freezer compartment, and a through hole 'b' is opened on the right end face. A left-side chamber is reserved between the left end face of the freezer compartment and the inner wall of the freezer, and a right-side chamber is reserved between the right end face of the freezer compartment and the inner wall of the freezer. The left-side chamber is connected to the right-side chamber via the ventilation duct. The semiconductor refrigeration chip matrix is ​​attached to the inner top surface of the freezer. A top chamber is reserved between the semiconductor refrigeration chip matrix and the upper surface of the freezer compartment. The top chamber is connected to both the left and right-side chambers. A door is provided on the front of the freezer compartment. Wheels are installed on the bottom of the freezer compartment.

[0006] The dispensing box is located on the right side wall of the freezer. A screw pump dispensing mechanism and a gear pump dispensing mechanism are installed inside the dispensing box. The feed end of the screw pump dispensing mechanism extends into the freezer compartment via pipe a, sequentially penetrating the inner wall of the dispensing box, the right side wall of the freezer, and through hole b. The dispensing head a of the screw pump dispensing mechanism extends outside the dispensing box. Similarly, the feed end of the gear pump dispensing mechanism extends into the freezer compartment via pipe b, sequentially penetrating the inner wall of the dispensing box, the right side wall of the freezer, and through hole b. The dispensing head b of the gear pump dispensing mechanism extends outside the dispensing box.

[0007] It also includes an air-cooled circulation unit, which includes a blower, fan blades, and a motor. The blower is installed in the right-side chamber, with the air inlet of the blower facing the inner cavity of the ventilation duct. The air outlet of the blower is arranged upward along the inner wall of the right-side chamber. The fan blades are placed inside the blower cavity. The motor is installed on the inner wall of the packaging box. The motor output shaft sequentially passes through the inner wall of the packaging box and the right side wall of the freezer box, extending to the inner cavity of the blower. The fan blades are keyed to the output shaft.

[0008] Furthermore, this utility model provides a mobile laboratory sample dispensing and low-temperature storage device, wherein a heat insulation plate is attached to the bottom of the ventilation duct.

[0009] Furthermore, this utility model provides a portable laboratory sample dispensing and low-temperature storage device, wherein at least one partition is provided in the freezing chamber, the upper side of the partition stores a low-viscosity sample box, the low-viscosity sample box is connected to the inner end of the pipe b, and the lower side of the partition stores a high-viscosity sample box, the high-viscosity sample box is connected to the inner end of the pipe a.

[0010] This application has the following advantages over the prior art:

[0011] On the one hand, it innovatively adopts semiconductor refrigeration technology. Based on the downward propagation of cold source and its characteristics of cooling on one side and heating on the other, a semiconductor refrigeration chip matrix is ​​set on the top of the freezing chamber, with the heating surface in close contact with the upper end surface of the freezing chamber, dissipating heat through the upper end surface, while the cold source contacts the freezing chamber downwards. On the other hand, in order to further improve the cooling effect, this application adds a circulating air structure to increase the contact area between the cold source and the freezing chamber, and spreads cold air inward through the four ends of the freezing chamber, resulting in a significant cooling effect. In addition, this application specially sets up a screw pump dispensing mechanism and a gear pump dispensing mechanism. The screw pump dispensing mechanism is good at dispensing high-viscosity samples, and the gear pump dispensing mechanism is good at dispensing low-viscosity samples. With the addition of wheels, it can simultaneously meet the needs of cross-regional mobile collaboration, rapid dispensing of samples of different viscosities, and high-precision dispensing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a portable laboratory sample dispensing and low-temperature storage device according to the present invention.

[0013] Figure 2 This is a schematic diagram of the internal structure of a portable laboratory sample dispensing and low-temperature storage device according to the present invention.

[0014] Figure 3 This is an exploded view of the structure of a portable laboratory sample dispensing and low-temperature storage device according to the present invention.

[0015] The components are as follows: 1. Freezer; 2. Packaging box; 3. Lithium battery compartment; 4. Ventilation duct; 5. Freezer compartment; 6. Semiconductor cooling chip matrix; 7. Through hole a; 8. Through hole b; 9. Left side chamber; 10. Right side chamber; 11. Top chamber; 12. Door; 13. Wheels; 14. Screw pump packaging mechanism; 15. Gear pump packaging mechanism; 16. Pipe a; 17. Packaging head a; 18. Pipe b; 19. Packaging head b; 20. Blower; 21. Fan blade; 22. Motor; 23. Partition; 24. Low viscosity sample box; 25. High viscosity sample box. Detailed Implementation

[0016] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0017] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0019] like Figures 1-3 As shown, this embodiment provides a portable laboratory sample dispensing and low-temperature storage device, which includes a freezer 1 and a dispensing box 2;

[0020] The freezer 1 is arranged from bottom to top as follows: a lithium battery compartment 3, a ventilation duct 4, a freezer compartment 5, and a semiconductor refrigeration chip matrix 6. The lithium battery compartment 3 is located at the bottom of the freezer 1 and is filled with lithium batteries to provide power. The ventilation duct 4 is installed above the lithium battery compartment 3. To prevent the high temperature of the lithium battery compartment 3 from escaping into the ventilation duct 4, a heat insulation plate is attached to the bottom of the ventilation duct 4. The freezer compartment 5 is located on the upper surface of the ventilation duct 4. A through hole a7 is opened on the left end face of the freezer compartment 5, and a through hole b8 is opened on the right end face of the freezer compartment 5. The left end face of the freezer compartment 5 and the... A left-side chamber 9 is reserved between the inner walls of the freezer 1 and the right-side chamber 10 is reserved between the right end face of the freezer compartment 5 and the inner wall of the freezer 1. The left-side chamber 9 is connected to the right-side chamber 10 through the ventilation duct 4. The semiconductor cooling chip matrix 6 is attached to the inner top surface of the freezer 1. A top chamber 11 is reserved between the semiconductor cooling chip matrix 6 and the upper end face of the freezer compartment 5. The top chamber 11 is connected to the left-side chamber 9 and the right-side chamber 10. A door 12 is provided on the front of the freezer compartment 5. Wheels 13 are installed on the bottom surface of the freezer compartment 5.

[0021] The dispensing box 2 is located on the right side wall of the freezer 1. A screw pump dispensing mechanism 14 and a gear pump dispensing mechanism 15 are installed inside the dispensing box 2. The feed end of the screw pump dispensing mechanism 14 extends into the freezer compartment 5 through a pipe a16, sequentially penetrating the inner wall of the dispensing box 2, the right side wall of the freezer 1, and a through hole b8. The dispensing head a17 of the screw pump dispensing mechanism 14 extends outside the dispensing box 2. The feed end of the gear pump dispensing mechanism 15 extends into the freezer compartment 5 through a pipe b18, sequentially penetrating the inner wall of the dispensing box 2, the right side wall of the freezer 1, and a through hole b8. The dispensing head b19 of the gear pump dispensing mechanism 15 extends outside the dispensing box 2.

[0022] It also includes an air-cooled circulation unit, which includes a blower 20, fan blades 21 and a motor 22. The blower 20 is installed in the right side chamber 10, with the air inlet of the blower 20 facing the inner cavity of the ventilation duct 4. The air outlet of the blower 20 is arranged upward along the inner wall of the right side chamber 10. The fan blades 21 are placed inside the blower 20. The motor 22 is installed on the inner wall of the packaging box 2. The output shaft of the motor 22 sequentially passes through the inner wall of the packaging box 2 and the right side wall of the freezer 1, extending to the inner cavity of the blower 20. The fan blades 21 are keyed to the output shaft.

[0023] like Figure 2 As shown, at least one partition 23 is provided in the freezing chamber 5. The upper side of the partition 23 stores a low viscosity sample box 24, which is connected to the inner end of the pipe b18. The lower side of the partition 23 stores a high viscosity sample box 25, which is connected to the inner end of the pipe a16.

[0024] The usage process and principle of a portable laboratory sample dispensing and low-temperature storage device in this embodiment are as follows: When cross-regional transport is required, the semiconductor cooling chip matrix 6 is powered on, and the air-cooled circulation unit is turned on to rapidly cool the freezing chamber 5. When the temperature drops to the required temperature, the air-cooled circulation unit is turned off, the chamber door 12 is opened, and the low-viscosity sample box 24 containing low-viscosity samples is placed on the partition 23, with its discharge port connected to the pipe b18. The high-viscosity sample box 25 containing high-viscosity samples is placed below the partition 23, with its discharge port connected to the pipe a16. The chamber door 12 is closed, the air-cooled circulation unit is turned on again, and the device is pushed to the destination. When low-viscosity samples need to be dispensed, the gear pump dispensing mechanism 15 is turned on. The gear pump dispensing mechanism 15 operates according to preset instructions and releases low-viscosity samples through the dispensing head b19. When high-viscosity samples need to be dispensed, the screw pump dispensing mechanism 14 is turned on. The screw pump dispensing mechanism 14 operates according to preset instructions and releases high-viscosity samples through the dispensing head a17.

[0025] Any aspects not detailed in this application are well-known to those skilled in the art.

[0026] The preferred embodiments of this application have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this application without inventive effort. Therefore, any technical solutions that can be obtained by those skilled in the art based on the concept of this application through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A portable laboratory sample dispensing and low-temperature storage device, characterized in that, Includes freezers and repacking boxes; The freezer is arranged from bottom to top as follows: a lithium battery compartment, a ventilation duct, a freezer compartment, and a semiconductor refrigeration chip matrix. The lithium battery compartment is located at the bottom of the freezer and contains lithium batteries to provide power. The ventilation duct is installed above the lithium battery compartment, and the freezer compartment is located on the upper surface of the ventilation duct. A through hole 'a' is opened on the left end face of the freezer compartment, and a through hole 'b' is opened on the right end face. A left-side chamber is reserved between the left end face of the freezer compartment and the inner wall of the freezer, and a right-side chamber is reserved between the right end face of the freezer compartment and the inner wall of the freezer. The left-side chamber is connected to the right-side chamber via the ventilation duct. The semiconductor refrigeration chip matrix is ​​attached to the inner top surface of the freezer. A top chamber is reserved between the semiconductor refrigeration chip matrix and the upper surface of the freezer compartment. The top chamber is connected to both the left and right-side chambers. A door is provided on the front of the freezer compartment. Wheels are installed on the bottom of the freezer compartment. The dispensing box is located on the right side wall of the freezer. A screw pump dispensing mechanism and a gear pump dispensing mechanism are installed inside the dispensing box. The feed end of the screw pump dispensing mechanism extends into the freezer compartment via pipe a, sequentially penetrating the inner wall of the dispensing box, the right side wall of the freezer, and through hole b. The dispensing head a of the screw pump dispensing mechanism extends outside the dispensing box. Similarly, the feed end of the gear pump dispensing mechanism extends into the freezer compartment via pipe b, sequentially penetrating the inner wall of the dispensing box, the right side wall of the freezer, and through hole b. The dispensing head b of the gear pump dispensing mechanism extends outside the dispensing box. It also includes an air-cooled circulation unit, which includes a blower, fan blades, and a motor. The blower is installed in the right-side chamber, with the air inlet of the blower facing the inner cavity of the ventilation duct. The air outlet of the blower is arranged upward along the inner wall of the right-side chamber. The fan blades are placed inside the blower cavity. The motor is installed on the inner wall of the packaging box. The motor output shaft sequentially passes through the inner wall of the packaging box and the right side wall of the freezer box, extending to the inner cavity of the blower. The fan blades are keyed to the output shaft.

2. The portable laboratory sample dispensing and low-temperature storage device according to claim 1, characterized in that, The bottom of the ventilation duct is fitted with a heat insulation board.

3. The portable laboratory sample dispensing and low-temperature storage device according to claim 1, characterized in that, At least one partition is provided inside the freezing chamber. The upper side of the partition stores a low-viscosity sample box, which is connected to the inner end of the pipe b. The lower side of the partition stores a high-viscosity sample box, which is connected to the inner end of the pipe a.

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