Refrigeration device for experimental samples of molecular biology

Abstract

The utility model discloses a refrigeration device for experimental samples of molecular biology, which relates to the technical field of sample refrigeration and comprises a refrigeration cylinder. The refrigeration cylinder is rotationally arranged in the heat preservation cylinder, an annular boss extending in the axis direction is arranged at the top of the inner side face of the heat preservation cylinder, and a limiting ring is fixedly arranged on the annular boss in the direction facing the cylinder bottom; a plurality of groups of storage grooves for storing test tubes are formed in the cylinder wall of the refrigeration cylinder in a circumferential array manner; a set of reserved grooves are formed in the annular boss, and sealing blocks are embedded in the reserved grooves in a sliding mode. When the test tubes need to be taken out or stored, the refrigeration cylinder is rotated to enable the corresponding storage grooves to rotate to the reserved grooves, the needed test tubes can be taken out by moving away the sealing blocks, when one group of storage grooves rotate to the reserved grooves, other storage grooves are still sealed by the annular bosses, and the phenomenon of cold air leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sample refrigeration, in particular to a molecular biology experiment sample refrigeration device. Background Art

[0002] Molecular biology is a science that studies the structure and function of biological macromolecules at the molecular level to elucidate the essence of life phenomena. Its main research areas include protein systems, protein-nucleic acid systems (centered on molecular genetics), and protein-lipid systems (i.e., biological membranes). When conducting molecular biology experiments, it is usually necessary to set up several groups of control experiments for comparison in order to improve the accuracy of the experiments.

[0003] In the prior art, test tubes containing molecular experimental reagents are usually placed directly in a refrigerator for storage. However, in actual use, when one of the test tubes needs to be taken out, the other test tubes will also be exposed to the air. Pathogens in the air can easily adhere to the other test tubes. Moreover, when the cabinet door is opened to take out the test tubes, heat exchange will occur between the other test tubes and the outside world, making it impossible to properly store the other test tubes at a constant temperature. Summary of the Invention

[0004] The purpose of this utility model is to provide a molecular biology experiment sample refrigeration device to solve the following technical problems:

[0005] When one of the test tubes needs to be taken out, the other test tubes will be exposed to the air. Pathogens in the air can easily adhere to the other test tubes. When the cabinet door is opened to take out the test tubes, heat exchange will occur between the other test tubes and the outside world, making it impossible to store the other test tubes at a constant temperature.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A molecular biology experiment sample refrigeration device comprises a refrigeration cylinder;

[0008] The refrigeration cylinder is rotatably arranged in the heat-insulating cylinder. An annular boss extending toward the axis is provided on the top of the inner side of the heat-insulating cylinder. A limiting ring is fixedly arranged on the annular boss toward the bottom of the cylinder. A plurality of storage slots for storing test tubes are arranged in a circumferential array on the wall of the refrigeration cylinder.

[0009] A set of reserved grooves is provided on the annular boss, and sealing blocks are slidably embedded in the reserved grooves.

[0010] Preferably, the heat preservation cylinder is fixedly arranged on the refrigerator, and an annular refrigeration cavity is provided in the wall of the refrigeration cylinder at one end close to the bottom of the cylinder, and the annular refrigeration cavity corresponds to the position of the cold air output end of the refrigerator;

[0011] Wherein, each group of two adjacent storage tanks is connected through a refrigeration channel, and each refrigeration channel is connected to the annular refrigeration cavity through a cold air groove.

[0012] Preferably, a servo motor is provided at the bottom of the axial end of the insulation cylinder, the servo motor is fixedly arranged on the refrigerator, the output end of the servo motor is fixed to the gear, and a gear ring meshing with the gear is fixedly arranged at the inner axial end of the refrigeration cylinder.

[0013] Preferably, each refrigeration channel is provided with a slide groove on one end side close to the storage tank, and a sealing plate for sealing the refrigeration channel is slidably provided in the slide groove, and the sealing plate is connected to a driving part that drives it to slide back and forth in the slide groove and the refrigeration channel.

[0014] Preferably, a pressure plate is provided at the bottom of the storage tank, an elastic airbag is provided in the cylindrical wall at the bottom of the storage tank, a lifting plate is slidingly provided on the elastic airbag and is fixedly connected to the pressure plate, an air groove is opened on the side of the refrigeration channel away from the slide groove, an air plug is slidingly provided in the air groove, the air plug is fixed to the sealing plate by a connecting rod, and both ends of the elastic airbag are connected to the air groove through air pipes respectively.

[0015] Beneficial effects of the utility model:

[0016] (1) When the test tubes need to be taken out or stored, the refrigeration cylinder is rotated so that the corresponding storage slots are rotated to the reserved slots, and the required test tubes can be taken out by removing the sealing block. When one group of storage slots is rotated to the reserved slots, the other storage slots are still sealed by the annular boss to avoid the phenomenon of cold air leakage;

[0017] (2) In the present invention, when the test tube is inserted into the storage tank, the sealing plate is in the slide groove and does not seal the refrigeration channel. When the test tube is taken out of the storage tank, the driving unit drives the sealing plate to slide toward the refrigeration channel and seals it, so that cold air can no longer enter the storage tank, thereby avoiding the leakage of cold air when the test tube is taken out. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic structural diagram of a molecular biology experiment sample refrigeration device of the utility model;

[0020] Figure 2 This is a schematic structural diagram of a refrigeration cylinder in a molecular biology experiment sample refrigeration device of the present invention;

[0021] Figure 3 This is a schematic structural diagram of a storage tank in a molecular biology experiment sample refrigeration device of the present invention;

[0022] Figure 4 This is a schematic structural diagram of a refrigeration channel in a molecular biology experiment sample refrigeration device of the present invention;

[0023] Figure 5 The utility model is a structural schematic diagram of a heat preservation cylinder in a molecular biology experiment sample refrigeration device.

[0024] In the figure: 1. Refrigerator; 2. Insulation cylinder; 3. Gear ring; 4. Refrigeration cylinder; 101. Annular refrigeration chamber; 102. Cold air groove; 201. Reserved groove; 202. Sealing block; 203. Annular boss; 204. Limiting ring; 301. Gear; 401. Storage tank; 402. Test tube; 403. Pressing plate; 404. Refrigeration channel; 405. Sealing plate; 406. Air groove; 407. Slide; 408. Lifting plate; 409. Elastic airbag; 410. Air pipe; 411. Air plug. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] See also Figure 1-Figure 5 As shown, the present invention is a molecular biology experiment sample refrigeration device, comprising a refrigeration cylinder 4. In one embodiment of the present embodiment, the refrigeration cylinder 4 is an annular structure;

[0028] The refrigeration cylinder 4 is rotatably arranged in the insulation cylinder 2, and an annular boss 203 extending toward the axial direction is provided on the top of the inner side surface of the insulation cylinder 2, and a limiting ring 204 is fixed on the annular boss 203 toward the bottom of the cylinder; specifically, when the refrigeration cylinder 4 is installed, the refrigeration cylinder 4 is inserted from the bottom of the insulation cylinder 2 so that the cylinder wall of the refrigeration cylinder 4 is embedded in the gap enclosed by the limiting ring 204, the cylinder wall and the annular boss 203.

[0029] Several groups of storage slots 401 for storing test tubes 402 are provided in a circumferential array on the wall of the refrigeration cylinder 4; specifically, in this embodiment, the diameter of the top notch of the storage slot 401 is slightly larger than the diameter of the test tube 402, so as to facilitate the positioning and storage of the test tube 402 and prevent the test tube 402 from tipping over. The diameter inside the storage slot 401 is larger than the diameter of the notch, so that when the test tube 402 is placed in the storage slot 401, there is a gap between the outer wall of the test tube 402 and the storage slot 401, so that low-temperature air can be transported into the gap to refrigerate the test tube 402.

[0030] A group of reserved grooves 201 are provided on the annular boss 203, and a sealing block 202 is slidably embedded in the reserved groove 201. The sealing block 202 can be made of rubber material to improve the sealing effect; specifically, when it is necessary to take out or store the test tube 402, the corresponding storage groove 401 is rotated to the reserved groove 201 by rotating the refrigeration cylinder 4, and the required test tube 402 can be taken out by removing the sealing block 202. When a group of storage grooves 401 is rotated to the reserved groove 201, the other storage grooves 401 are still closed by the annular boss 203 to avoid the phenomenon of cold air leakage.

[0031] In addition, in this embodiment, each reserved slot 201 can be numbered to facilitate the experimenter to take out or place the test tube 402.

[0032] Example 2

[0033] Based on Example 1, please refer to Figure 1-Figure 5 The heat preservation cylinder 2 is fixedly arranged on the refrigerator 1, and an annular refrigeration cavity 101 is formed in the wall of the refrigeration cylinder 4 at one end close to the bottom of the cylinder. The annular refrigeration cavity 101 corresponds to the cold air output end of the refrigerator 1; wherein, each group of two adjacent storage tanks 401 is connected through a refrigeration channel 404, and each refrigeration channel 404 is connected to the annular refrigeration cavity 101 through the cold air groove 102; specifically, the refrigerator 1 in this embodiment adopts the HG17-DR71A intelligent refrigerator or the EK series immersion refrigerator, which is not limited in this embodiment;

[0034] It can be explained that during the refrigeration process, the refrigerator 1 is started, and the cold air generated by the refrigerator 1 first enters the annular refrigeration cavity 101, and then enters the storage tank 401 through the cold air groove 102 and the refrigeration channel 404 to achieve refrigeration of the test tube 402. In this embodiment, multiple temperature sensors can be set in the annular refrigeration cavity 101 to monitor the temperature in the annular refrigeration cavity 101. Based on the monitoring results, the output power of the refrigerator 1 can be adjusted by the controller to achieve constant temperature refrigeration of the test tube 403.

[0035] In order to drive the refrigeration cylinder 4 to rotate automatically, in this embodiment, a servo motor is provided at the bottom of the axial end of the insulation cylinder 2, the servo motor is fixedly arranged on the refrigerator 1, the output end of the servo motor is fixed to the gear 301, and the inner axial end of the refrigeration cylinder 4 is fixedly provided with a gear ring 3 that engages with the gear 301; specifically, when it is necessary to take or place the corresponding test tube 402, the gear 301 is driven to rotate by the servo motor, and the gear 301 drives the refrigeration cylinder 4 to rotate during the rotation process by engaging with the gear ring 3, so that the corresponding storage slot 401 rotates to the reserved slot 201.

[0036] In order to avoid the phenomenon of cold air leakage when taking or placing the test tube 402, in this embodiment, a slide groove 407 is provided on the side edge of one end of each refrigeration channel 404 close to the storage tank 401, and a sealing plate 405 for sealing the refrigeration channel 404 is slidingly provided in the slide groove 407, and the sealing plate 405 is connected to a driving part that drives it to slide back and forth in the slide groove 407 and the refrigeration channel 404; it can be explained that when the test tube 402 is inserted into the storage tank 401, the sealing plate 405 is in the slide groove 407 and does not close the refrigeration channel 404. When the test tube 402 is taken out of the storage tank 401, the driving part drives the sealing plate 405 to slide toward the refrigeration channel 404 and seals it, so that cold air can no longer enter the storage tank 401, thereby avoiding the phenomenon of cold air leakage when the test tube 402 is taken out.

[0037] Specifically, a pressure plate 403 is provided at the bottom of the storage tank 401, and an elastic air bag 409 is provided in the cylinder wall at the bottom of the storage tank 401. A lifting plate 408 fixedly connected to the pressure plate 403 is slidably provided on the elastic air bag 409. An air groove 406 is provided on the side of the refrigeration channel 404 away from the slide groove 407. An air plug 411 is slidably provided in the air groove 406. The air plug 411 is fixed to the sealing plate 405 by a connecting rod. Both ends of the elastic air bag 409 are connected to the air groove 406 through an air pipe 410. It can be explained that when the test tube 402 is inserted into the storage tank 401, the pressure plate 403 can be pressed by the gravity of the test tube 402 itself. 3 is squeezed, and the pressing plate 403 drives the lifting plate 408 to descend and compress the elastic airbag 409, so that the gas in the elastic airbag 409 is transported to the air groove 406 through the air pipe 410, so that the pressure in the air groove 406 increases, and then the sealing plate 405 can be pushed up and embedded in the slide groove 407 through the air plug 411, so that the cooling channel 404 is in an open state. Correspondingly, when the test tube 402 is taken out, the elastic airbag 409 can restore its deformation and extract the gas in the slide groove 407, so that the sealing plate 405 slides into the cooling channel 404 for sealing, effectively avoiding the phenomenon of cold air leakage.

[0038] The working principle of the present invention is as follows: the gear 301 is driven to rotate by a servo motor, and the gear 301 drives the refrigeration cylinder 4 to rotate by engaging with the gear ring 3 during the rotation, so that the corresponding storage slot 401 is rotated to the reserved slot 201, and the test tube 402 is inserted into the corresponding storage slot 401. During the refrigeration process, the refrigerator 1 is started, and the cold air generated by the refrigerator 1 first enters the annular refrigeration cavity 101, and then enters the storage slot 401 through the cold air slot 102 and the refrigeration channel 404 to realize the refrigeration of the test tube 402. When the test tube 402 needs to be taken or stored, the refrigeration cylinder 4 is rotated to make the corresponding storage slot 401 rotate to the reserved slot 201, and the required test tube 402 can be taken out by removing the sealing block 202.

[0039] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0040] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0041] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A molecular biology experiment sample refrigeration device, characterized in that: including a refrigeration cylinder (4); The refrigeration cylinder (4) is rotatably arranged in the heat-insulating cylinder (2); an annular boss (203) extending in the axial direction is provided on the top of the inner side surface of the heat-insulating cylinder (2); a limiting ring (204) is fixedly arranged on the annular boss (203) toward the bottom of the cylinder; a plurality of storage slots (401) for storing test tubes (402) are provided in a circumferential array on the cylinder wall of the refrigeration cylinder (4); A set of reserved grooves (201) are provided on the annular boss (203), and a sealing block (202) is slidably embedded in the reserved grooves (201).

2. A molecular biology experiment sample refrigeration device according to claim 1, characterized in that: The heat preservation cylinder (2) is fixedly arranged on the refrigerator (1), and an annular refrigeration cavity (101) is provided in the wall of the refrigeration cylinder (4) at one end close to the bottom of the cylinder, and the annular refrigeration cavity (101) corresponds to the position of the cold air output end of the refrigerator (1); Each group of two adjacent storage tanks (401) is connected via a refrigeration channel (404), and each refrigeration channel (404) is connected to the annular refrigeration cavity (101) via a cold air groove (102).

3. A molecular biology experiment sample refrigeration device according to claim 2, characterized in that: A servo motor is provided at the bottom of the axial end of the heat preservation cylinder (2), the servo motor is fixedly arranged on the refrigerator (1), the output end of the servo motor is fixed to the gear (301), and a gear ring (3) meshing with the gear (301) is fixedly arranged at the inner axial end of the refrigeration cylinder (4).

4. A molecular biology experiment sample refrigeration device according to claim 2, characterized in that: A sliding groove (407) is provided on one end side of each refrigeration channel (404) close to the storage tank (401), and a sealing plate (405) for sealing the refrigeration channel (404) is slidably provided in the sliding groove (407). The sealing plate (405) is connected to a driving part that drives it to slide back and forth in the sliding groove (407) and the refrigeration channel (404).

5. The molecular biology experiment sample refrigeration device according to claim 4, characterized in that: A pressure plate (403) is provided at the bottom of the storage tank (401), an elastic air bag (409) is provided in the cylinder wall at the bottom of the storage tank (401), a lifting plate (408) fixedly connected to the pressure plate (403) is slidably provided on the elastic air bag (409), an air groove (406) is provided on the side of the refrigeration channel (404) away from the slide groove (407), an air plug (411) is slidably provided in the air groove (406), the air plug (411) is fixed to the sealing plate (405) through a connecting rod, and both ends of the elastic air bag (409) are connected to the air groove (406) through air pipes (410).

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