Temporary sample storage equipment for marine research and use method

Abstract

The invention relates to the technical field of sample storage, and discloses a temporary sample storage device for marine research and a using method.The temporary sample storage device for marine research comprises a refrigerating box; a test tube piece; the test tube rack is used for bearing multiple groups of test tube pieces; the device further comprises a putting mechanism which is arranged in the refrigerating box, the putting mechanism comprises a heat preservation plate arranged in the refrigerating box, the heat preservation plate is located above the test tube rack, a track of an S-shaped structure is arranged on the heat preservation plate, a flexible sealing strip matched with the track in shape is arranged in the track, and a movable gap is formed in the flexible sealing strip. According to the invention, through the arrangement of the putting mechanism and the mutual cooperation of the track arranged in an S-shaped structure and the flexible sealing strip, only the single insertion hole where the straight cylinder is located is temporarily exposed during operation, and the other areas are always kept in a sealed state, so that the direct exchange between the cooling capacity in the refrigeration box and the external hot air is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of sample storage technology, and in particular to a temporary sample storage device and method for use in marine research. Background Technology

[0002] In marine research, the collection and preservation of marine samples (such as seawater, sediments, and microorganisms) are fundamental to subsequent experimental analysis. Microbial samples, in particular, need to be stored immediately in a specific environment after sampling to inhibit microbial metabolic activity, prevent changes in community structure, and provide reliable original samples for subsequent laboratory culture, sequencing, and other research. In this process, a refrigerator is usually used as a temporary storage device. In existing technologies, refrigerators typically include a box body, an insulation layer, a temperature control module, and a sample carrier. The insulation module can form an inert gas insulation layer by injecting nitrogen, which reduces heat exchange between the inside and outside of the box due to nitrogen's low thermal conductivity. Alternatively, polyurethane foam or aerogel can be used as filling materials, along with semiconductor cooling chips, compressor cooling, or ice packs to assist in temperature control and provide a suitable environment for microbial activity.

[0003] An existing endocrinology sample storage device, disclosed in publication number CN113353437A, includes: a box body; a rotating cover, which is rotatably mounted on the top of the box body; a guide plate, which is mounted on the upper side inside the box body; placement tubes, which are evenly spaced on the lower side inside the box body; an opening assembly, which is located between the box body and the rotating cover; a movable assembly, which is located on the upper side inside the box body; a stabilizing assembly, which is located on the placement tubes; and a locking assembly, which is located on the upper side of the box body. Although the above technical solution can effectively store sample tubes by using the reset action of a third spring to move the irregularly shaped block backward when the rotating rod continues to move and disengages from the irregularly shaped block, thus locking the rotating cover, the device can effectively store sample tubes.

[0004] However, in practical use, most existing refrigerators adopt an integrated door design. When it is necessary to take out or put in test tubes containing microbial samples, the door must be fully opened. At this time, the cold air inside the refrigerator will be rapidly exchanged with the warm air of the outside environment, causing the temperature inside the refrigerator to fluctuate in a short period of time. Temperature fluctuations can destroy the living environment of microorganisms. When taking out or putting in multiple samples in succession, the temperature rise may also stimulate the microbial metabolic rate to accelerate, leading to changes in their community structure. Furthermore, when handling samples, the excessively low temperature inside the refrigerator will directly affect the operator's hands, especially under the conditions of low temperature preservation and frequent handling, which may cause frostbite or cold stimulation. In addition, the longer the refrigerator door is open, the more serious the loss of cold air, which not only increases the energy consumption of the temperature control module, but may also cause the temperature inside the refrigerator to exceed the preservation range, further affecting the integrity of the samples and ultimately affecting the accuracy of subsequent research data. Summary of the Invention

[0005] The purpose of this invention is to provide a temporary sample storage device and method for marine research, in order to solve the problem mentioned in the background art that existing refrigerated boxes require the door to be fully opened when taking out or putting in samples, which leads to temperature fluctuations inside the box that damage the microbial living environment and may affect the integrity of the samples.

[0006] This invention provides a temporary sample storage device and method for marine research, employing the following technical solution: A temporary sample storage device for marine research, comprising: Refrigerator; The test tube set is provided in multiple sets, and each set of test tube sets includes a tube body and a tube cap located on the top of the tube body; A test tube rack is used to hold multiple sets of test tubes. The test tube rack includes a frame housed inside a refrigerator, multiple sets of insertion holes on the frame, and anti-slip seats fixed to the frame corresponding to each insertion hole. It also includes: The dispensing mechanism is located inside a refrigerator. It includes an insulation board positioned above a test tube rack. An S-shaped track is formed on the insulation board, and a flexible sealing strip with a matching shape is installed inside the track. The flexible sealing strip has a movable gap inside. The cross-section of the flexible sealing strip is symmetrically distributed, with a concave center and convex sides. The convex parts have cavities inside, and the concave part communicates with the movable gap. A straight cylinder slides within the movable gap, and the sliding trajectory of the straight cylinder corresponds to the positions of multiple sets of insertion holes. By controlling the straight cylinder to slide along the movable gap, multiple sets of test tubes are sequentially inserted into their corresponding insertion holes.

[0007] Furthermore, a clamping mechanism is provided inside the straight cylinder. The clamping mechanism includes an inner cylinder that is slidably disposed on the inner wall of the straight cylinder, gripping arms that are equidistantly disposed along the circumference of the inner cylinder, and a gripping head integrally disposed at the bottom of the gripping arms. The gripping arms are rotatably disposed in the inner cylinder via a shaft. Multiple sets of connecting columns corresponding to the shaft are fixed to the inner wall of the inner cylinder. The shaft is rotatably connected to the corresponding connecting columns. A torsion spring is disposed on the shaft, and the two ends of the torsion spring are respectively fixed to the shaft and the connecting columns.

[0008] Furthermore, extension rods are symmetrically arranged on the outer side of the inner cylinder, and sliders are fixed on the outer side of both sets of extension rods. A groove is provided on the inner wall of the straight cylinder for sliders to slide. Sliders are symmetrically fixed on both sides of the inner cylinder, and a groove is provided on the inner side of the extension rod for sliders to slide.

[0009] Furthermore, the top of the gripping head is flat, and the inner side of the bottom of the gripping head is inclined.

[0010] Furthermore, a sleeve is fixed to the outer side of the straight cylinder, and the sleeve is slidably connected to the concave part.

[0011] Furthermore, the insulation board is provided with indicator marks that correspond one-to-one with the number of insertion holes.

[0012] Furthermore, the insulation board is symmetrically fixed with brackets on both sides, and the brackets are connected to the refrigerator box by bolts.

[0013] Furthermore, the frame is provided with multiple sets of limiting mechanisms. Each limiting mechanism includes multiple sets of bases fixed on the frame. The bases are located on one side of the insertion hole. A limiting rod is rotatably connected to the base via a rotating shaft. Both ends of the rotating shaft are provided with torsion springs. The two ends of the torsion springs are fixed to the base and the limiting rod, respectively.

[0014] Furthermore, abutment rods are symmetrically fixed on both sides of the bottom end of the straight cylinder, and the positions of the abutment rods and the limiting rods correspond to each other.

[0015] A method of using a temporary sample storage device for marine research, comprising the following steps: Step 1: Open the refrigerator and insert the sample tube into the corresponding socket through the straight tube; Step 2: Control the straight cylinder to slide along the movable gap, and insert the tube into other insertion holes in sequence to complete the storage; Step 3: When it is necessary to remove the tube, control the inner cylinder to move down, so that the gripping head contacts the tube cap and continues to move down to its bottom. Use the torsion spring to control the gripping head to clamp the tube cap. Step 4: After clamping, move the inner cylinder upwards. By sliding slider one and slider two, the inner cylinder and extension rod are extended upwards, thus lifting the test tube.

[0016] The beneficial effects of this invention are: By incorporating a dispensing mechanism and utilizing an S-shaped track and flexible sealing strip, only a single insertion hole containing the straight cylinder is briefly exposed during operation, while the remaining area remains sealed. This significantly reduces the direct exchange of cold air inside the refrigerator with warm air from the outside, effectively controlling temperature fluctuations within the refrigerator and creating a more stable low-temperature storage environment for microbial samples. Furthermore, operators only need to contact the straight cylinder when handling samples, eliminating the need for direct hand exposure to the low-temperature environment, thus significantly reducing the risk of frostbite and improving operational safety. In addition, the stable low-temperature environment effectively reduces sample deterioration or changes in characteristics caused by environmental fluctuations, thereby significantly improving the integrity of sample preservation.

[0017] By incorporating a gripping mechanism, the test tubes are gripped using a gripping arm and gripping head. This eliminates the need for operators to directly insert their hands into the cold storage environment, further reducing the risk of frostbite and improving operational comfort, in addition to the reduced hand exposure caused by the delivery mechanism. Furthermore, when it is not necessary to retrieve all test tubes at once, the sliding of the straight cylinder within the movable gap, in conjunction with the gripping mechanism, allows for targeted gripping of the target test tubes, minimizing interference with the storage environment of uncollected samples and maintaining the stability of their surrounding temperature. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the refrigerator compartment of the present invention in the open state; Figure 3 This is a three-dimensional cross-sectional view of the refrigerator compartment of the present invention; Figure 4 This is a three-dimensional structural diagram of the dispensing mechanism and the gripping mechanism of the present invention; Figure 5 This is a side view cross-sectional diagram of the insulation board, flexible sealing strip, and straight cylinder of the present invention. Figure 6 This is a three-dimensional cross-sectional view of the insulation board and flexible sealing strip of the present invention; Figure 7 This is a three-dimensional structural diagram of the insulation board of the present invention; Figure 8 This is a three-dimensional structural diagram of the straight cylinder, sleeve, and clamping mechanism of the present invention. Figure 9 This is a schematic cross-sectional view of the three-dimensional structure of the inner cylinder of the present invention; Figure 10 This is a cross-sectional schematic diagram of the unfolded three-dimensional structure of the straight cylinder, inner cylinder, and extension rod of the present invention. Figure 11 This is a three-dimensional structural diagram of the pipe body, pipe cap, frame, insertion hole, insulation board, flexible sealing strip, straight cylinder, inner cylinder, and limiting mechanism of the present invention. Figure 12 This is a frontal view of the pipe body and pipe cap of the present invention in a gripping state. Figure 13 This is a frontal view of the pipe body and pipe cap of the present invention in a lifted state. Figure 14 This is a schematic diagram of the three-dimensional structure of the tube body and tube cap of the present invention in a lifted state. Figure 15 This is a three-dimensional structural diagram of the straight cylinder and limiting mechanism of the present invention.

[0019] In the picture: 100. Refrigerated box; 200. Test tube fittings; 201. Tube body; 202. Tube cap; 300. Test tube rack; 301. Rack body; 302. Insertion hole; 303. Anti-slip seat; 400. Dispensing mechanism; 401. Insulation board; 402. Track; 403. Flexible sealing strip; 404. Movement gap; 405. Straight cylinder; 406. Sleeve; 407. Indicator; 408. Support; 409. Bolt; 500. Clamping mechanism; 501. Inner cylinder; 502. Gripping arm; 503. Gripping head; 504. Shaft; 505. Connecting column; 506. Torsion spring one; 507. Extension rod; 508. Slider one; 509. Slider two; 600. Limiting mechanism; 601. Base; 602. Rotating shaft; 603. Limiting rod; 604. Torsion spring two; 605. Abutment rod. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Reference Figures 1-3 This invention provides a temporary sample storage device for marine research, including a refrigerator 100, test tube fittings 200, and a test tube rack 300. The test tube fittings 200 are provided in multiple sets, and each set of test tube fittings 200 includes a tube body 201 and a tube cap 202 located on the top of the tube body 201. The test tube rack 300 is used to support multiple sets of test tube fittings 200. The test tube rack 300 includes a frame 301 located inside the refrigerator 100, multiple sets of insertion holes 302 located on the frame 301, and anti-slip seats 303 fixed on the frame 301 corresponding to the insertion holes 302.

[0022] Reference Figures 2-6 It also includes a dispensing mechanism 400, which is located inside the refrigerator 100. The dispensing mechanism 400 includes an insulation plate 401 located inside the refrigerator 100. The insulation plate 401 is located above the test tube rack 300. An S-shaped track 402 is provided on the insulation plate 401. A flexible sealing strip 403 with a matching shape is provided inside the track 402. An movable gap 404 is provided inside the flexible sealing strip 403. The cross-section of the flexible sealing strip 403 is symmetrically distributed with a concave center and convex sides. A cavity is provided inside the convex part to allow the convex part to deform. The concave part communicates with the movable gap 404. A straight cylinder 405 is slidably arranged inside the movable gap 404. The sliding trajectory of the straight cylinder 405 corresponds to the position of multiple sets of insertion holes 302.

[0023] When it is necessary to store test tube 200, push the straight cylinder 405 to slide along the movable gap 404 and align it with the target insertion hole 302. Due to the cross-sectional design of the flexible sealing strip 403, the straight cylinder 405 will squeeze the cavity of the convex part when it slides, causing it to deform, so that the straight cylinder 405 can pass through smoothly. After the straight cylinder 405 leaves, the cavity of the convex part returns to its original shape and forms a sealing structure together with the concave part, thereby effectively reducing the loss of cold. At this time, the operator can insert the test tube 200 into the corresponding insertion hole 302 through the straight cylinder 405. During the operation, only the position of the straight cylinder 405 is briefly connected to the outside, while other areas remain sealed.

[0024] Reference Figure 5 A sleeve 406 is fixed to the outside of the straight cylinder 405. The sleeve 406 is slidably connected to the concave part. When the straight cylinder 405 slides along the movable gap 404, the sleeve 406 slides synchronously in the concave part.

[0025] Reference Figure 6 The insulation board 401 is provided with indicator marks 407 that are the same number as the number of insertion holes 302 and correspond one-to-one. When the straight cylinder 405 slides along the movable gap 404, the operator can observe the relative position of the straight cylinder 405 and the indicator marks 407.

[0026] Reference Figure 7 The insulation board 401 is symmetrically fixed with brackets 408 on both sides. The brackets 408 are connected to the refrigerator 100 by bolts 409. With the help of the brackets 408 and bolts 409, the insulation board 401 can be easily fixed and disassembled. When all the test tubes 200 stored in the refrigerator 100 need to be taken out at once, the insulation board 401 can be disassembled directly to take out all the test tubes 200.

[0027] With the cooperation of the S-shaped track 402 and the flexible sealing strip 403, only a single insertion hole 302 is exposed at a time, thereby effectively reducing the exchange of cold air inside the refrigerator 100 with the outside hot air. By effectively controlling temperature fluctuations, a more stable storage environment is provided for microbial samples. Furthermore, the operator's hands only need to touch the straight cylinder 405, avoiding direct exposure to the low temperature environment and reducing the risk of frostbite.

[0028] Furthermore, refer to Figures 8-14A clamping mechanism 500 is provided inside the straight cylinder 405. The clamping mechanism 500 includes an inner cylinder 501 slidably disposed on the inner wall of the straight cylinder 405, gripping arms 502 equidistantly disposed along the circumference of the inner cylinder 501, and a gripping head 503 integrally disposed at the bottom of the gripping arms 502. The gripping arms 502 are rotatably disposed in the inner cylinder 501 via a shaft 504. Multiple sets of connecting posts 505 corresponding to the shaft 504 are fixed to the inner wall of the inner cylinder 501. The two ends of the shaft 504 are respectively rotatably connected to the corresponding connecting posts 505 via bearings. Next, a torsion spring 506 is installed on the shaft 504. The two ends of the torsion spring 506 are fixed to the shaft 504 and the connecting column 505, respectively. When it is necessary to remove the test tube 200, the inner cylinder 501 is pushed to slide down along the inner wall of the straight cylinder 405. The gripping arm 502 moves down with the inner cylinder 501 to the test tube 200. Using the elasticity of the torsion spring 506, the gripping head 503 is made to fit against the bottom of the tube cap 202 to grip the test tube 200. Then, the inner cylinder 501 is pulled upward to lift the test tube 200.

[0029] It should be noted that the top of the gripper head 503 is flat, while the inner side of the bottom end of the gripper head 503 is inclined. When the gripper head 503 continues to move downward, the inclined surface of its inner bottom end contacts the edge of the tube cap 202 and slides relative to it. The guiding effect of the inclined surface will force the gripper head 503 to move outward. At this time, the gripper arm 502 will rotate around the shaft 504, and the torsion spring 506 will twist and store force. When the gripper head 503 moves down to below the tube cap 202, the squeezing force of the tube cap 202 on the inclined surface will disappear, and the rebound force of the torsion spring 506 will drive the gripper arm 502 to reset, so that the gripper head 503 tightens inward and fits against the outer wall of the tube body 201, thus stably clamping the tube body 201.

[0030] By using the gripping arm 502 and gripping head 503 to grasp the test tube 200, the operator does not need to put their hands directly into the refrigerator 100, further reducing the risk of frostbite. In addition, when it is not necessary to take all the test tubes 200 at once, the straight cylinder 405 can be controlled to slide within the movable gap 404, and the gripping mechanism 500 can be used to grasp the target test tube 200, avoiding contact with other test tubes 200, reducing interference with the storage environment of uncollected samples, and reducing the possibility of cross-contamination of samples.

[0031] Specifically, refer to Figures 9-10The inner cylinder 501 is symmetrically provided with extension rods 507. Each of the two sets of extension rods 507 has a slider 508 fixed on its outer side. The inner wall of the straight cylinder 405 has a groove for the slider 508 to slide. The two sides of the inner cylinder 501 are symmetrically fixed with sliders 509. The inner side of the extension rods 507 has a groove for the slider 509 to slide. When the operator drives the inner cylinder 501 to slide upward, the extension rods 507 slide synchronously along the groove of the straight cylinder 405 through the slider 508, providing guidance and support for the inner cylinder 501. At the same time, the slider 509 of the inner cylinder 501 slides along the groove of the extension rod 507, ensuring that the inner cylinder 501 always moves smoothly along the central axis of the straight cylinder 405 and avoids deviation. With the cooperation of the extension rods 507, sliders 508 and sliders 509, the exposed part of the test tube 200 can be controlled when it is lifted, making it easy for the operator to steadily pick up the test tube 200.

[0032] Furthermore, refer to Figure 15 The frame 301 is equipped with multiple sets of limiting mechanisms 600. Each limiting mechanism 600 includes multiple sets of bases 601 fixed to the frame 301. The bases 601 are located on one side of the insertion holes 302, and the number of bases 601 is the same as the number of insertion holes 302. A limiting rod 603 is rotatably connected to the base 601 via a rotating shaft 602. Both ends of the rotating shaft 602 are equipped with torsion springs 604, and the two ends of the torsion springs 604 are fixed to the base 601 and the limiting rod 603, respectively. Abutment rods 605 are symmetrically fixed on both sides of the bottom end of the straight cylinder 405. The positions of the abutment rods 605 and the limiting rods 603 correspond, and the abutment rods 605 abut against the limiting rods 603. The near side is curved. When the straight cylinder 405 slides along the movable gap 404, the sliding resistance is small when the abutment rod 605 does not contact the limiting rod 603, making it easy for the operator to move the straight cylinder 405. When the abutment rod 605 contacts the edge of the limiting rod 603, the limiting rod 603 generates reverse resistance on the abutment rod 605 under the preload of the torsion spring 604. This allows the operator to perceive the change in sliding resistance and accurately determine whether the straight cylinder 405 is aligned with the target insertion hole 302. The feedback provided by the change in resistance helps the operator to further confirm the alignment status of the straight cylinder 405 and the insertion hole 302 based on the visual observation of the indicator 407.

[0033] The working principle of the temporary sample storage device for marine research provided by this invention is as follows: When it is necessary to store marine microbial samples, the insulation plate 401 is first fixed in the refrigerator 100 by the bracket 408 and bolts 409, and is located above the test tube rack 300. The operator pushes the straight cylinder 405 to slide along the movable gap 404. At this time, the sleeve 406 on the outside of the straight cylinder 405 slides synchronously in the concave part, and the convex part of the flexible sealing strip 403 deforms due to compression. When the straight cylinder 405 slides above the target insertion hole 302, the abutment rod 605 contacts the limiting rod 603, generating a change in resistance. Combined with the indicator 407 on the insulation plate 401, it is confirmed that the straight cylinder 405 is aligned with the target position. Then, the sample is stored in the refrigerator. The test tube 200 is inserted into the corresponding socket 302 through the straight cylinder 405. During the process of inserting the test tube 200 into the corresponding socket 302 through the straight cylinder 405, in order to avoid the gripping arm 502 and gripping head 503 obstructing the test tube 200, the top of the gripping arm 502 can be grasped and an external force can be applied to force the gripping arm 502 to rotate outward around the shaft 504. At this time, the gripping head 503 moves outward synchronously with the gripping arm 502, so that the inside of the straight cylinder 405 forms a space sufficient to accommodate the test tube 200. After the test tube 200 passes smoothly through the straight cylinder 405 and is inserted into the socket 302, the grip on the top of the gripping arm 502 is released, and the rebound force of the torsion spring 506 drives the gripping arm 502 and gripping head 503 to return to their original positions.

[0034] When it is necessary to remove the sample, push the straight cylinder 405 to the target position, then push the inner cylinder 501 down along the inner wall of the straight cylinder 405. The extension rod 507 slides along the first slide groove through the slider 508. The second slider 509 of the inner cylinder 501 slides along the second slide groove of the extension rod 507. At this time, the gripping head 503 moves down with the inner cylinder 501. The inclined surface on the inner side of its bottom end contacts the edge of the tube cap 202 and forces the gripping head 503 to move outward. The gripping arm 502 rotates around the shaft 504 to store the force of the torsion spring 506. When the gripping head 503 moves down to below the tube cap 202, the torsion spring 506 rebounds and drives the gripping head 503 to tighten and clamp the tube body 201 inward. Finally, pull the inner cylinder 501 upward. The test tube 200 is taken out from the insertion hole 302 through the gripping arm 502 and the gripping head 503. At this time, it is convenient for the operator to take the test tube 200.

[0035] This invention provides a method for using a temporary sample storage device for marine research, comprising the following steps: Step 1: Open the refrigerator 100 and insert the sample tube 201 into the corresponding socket 302 through the straight tube 405; Step 2: Control the straight cylinder 405 to slide along the movable gap 404, and insert the tube body 201 into other insertion holes 302 in sequence to complete the storage; Step 3: When it is necessary to remove the tube body 201, control the inner cylinder 501 to move down, so that the gripping head 503 contacts the tube cover 202 and continues to move down to its bottom. Use the torsion spring 506 to control the gripping head 503 to clamp the tube cover 202. Step 4: After clamping, move the inner cylinder 501 upward. By sliding the slider 1 508 and the slider 2 509, the inner cylinder 501 and the extension rod 507 are extended upward, thereby lifting the test tube 200.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A temporary sample storage device for marine research, comprising: Refrigerated box (100); The test tube fitting (200) is provided in multiple sets, and each set of test tube fitting (200) includes a tube body (201) and a tube cap (202) located on the top of the tube body (201). A test tube rack (300) is used to support multiple sets of test tubes (200). The test tube rack (300) includes a frame (301) located inside a refrigerator (100), multiple sets of insertion holes (302) located on the frame (301), and anti-slip seats (303) fixed on the frame (301) corresponding to the insertion holes (302). The rack is characterized by further including: The dispensing mechanism (400) is located inside the refrigerator (100). The dispensing mechanism (400) includes an insulation board (401) located inside the refrigerator (100). The insulation board (401) is located above the test tube rack (300). The insulation board (401) has an S-shaped track (402) on it. The track (402) has a flexible sealing strip (403) with a matching shape inside it. The flexible sealing strip (403) has a movable gap (404) inside it. The cross-section of the flexible sealing strip (403) is symmetrically distributed with a concave center and convex sides. The convex part has a cavity inside, and the concave part is connected to the movable gap (404). A straight cylinder (405) is slidably arranged in the movable gap (404). The sliding trajectory of the straight cylinder (405) corresponds to the position of multiple sets of insertion holes (302). By controlling the straight cylinder (405) to slide along the movable gap (404), multiple sets of test tubes (200) are inserted into the corresponding insertion holes (302) in sequence.

2. The temporary sample storage device for marine research according to claim 1, characterized in that, The straight cylinder (405) is provided with a clamping mechanism (500). The clamping mechanism (500) includes an inner cylinder (501) slidably disposed on the inner wall of the straight cylinder (405), a gripping arm (502) equidistantly disposed along the circumference of the inner cylinder (501), and a gripping head (503) integrally disposed at the bottom of the gripping arm (502). The gripping arm (502) is rotatably disposed in the inner cylinder (501) via a shaft (504). The inner wall of the inner cylinder (501) is fixed with multiple sets of connecting columns (505) corresponding to the shaft (504). The shaft (504) is rotatably connected to the corresponding connecting column (505). A torsion spring (506) is disposed on the shaft (504). The two ends of the torsion spring (506) are respectively fixed on the shaft (504) and the connecting column (505).

3. The temporary sample storage device for marine research according to claim 2, characterized in that, The inner cylinder (501) is symmetrically provided with extension rods (507), and two sets of extension rods (507) are fixed with sliders (508) on their outer sides. The inner wall of the straight cylinder (405) is provided with a groove for sliders (508) to slide. Sliders (509) are symmetrically fixed on both sides of the inner cylinder (501), and the inner side of the extension rods (507) is provided with a groove for sliders (509) to slide.

4. The temporary sample storage device for marine research according to claim 2, characterized in that, The top of the gripper head (503) is flat, and the inner side of the bottom end of the gripper head (503) is inclined.

5. The temporary sample storage device for marine research according to claim 1, characterized in that, A sleeve (406) is fixed to the outside of the straight cylinder (405), and the sleeve (406) is slidably connected to the concave part.

6. The temporary sample storage device for marine research according to claim 1, characterized in that, The insulation board (401) is provided with indicator marks (407) that are the same number as the number of the insertion holes (302) and correspond one-to-one.

7. The temporary sample storage device for marine research according to claim 1, characterized in that, The insulation board (401) is symmetrically fixed with brackets (408) on both sides, and the brackets (408) are connected to the refrigerator (100) by bolts (409).

8. The temporary sample storage device for marine research according to claim 1, characterized in that, The frame (301) is provided with multiple sets of limiting mechanisms (600). Each limiting mechanism (600) includes multiple sets of bases (601) fixed on the frame (301). The bases (601) are located on one side of the insertion hole (302). A limiting rod (603) is rotatably connected to the base (601) via a rotating shaft (602). Both ends of the rotating shaft (602) are provided with torsion springs (604). The two ends of the torsion springs (604) are fixed on the base (601) and the limiting rod (603) respectively.

9. The temporary sample storage device for marine research according to claim 8, characterized in that, The bottom ends of the straight cylinder (405) are symmetrically fixed with abutment rods (605), and the positions of the abutment rods (605) and the limiting rods (603) correspond to each other.

10. A method of using a temporary sample storage device for marine research, employing the temporary sample storage device for marine research as described in claim 3, characterized in that, Includes the following steps: Step 1: Open the refrigerator (100) and insert the sample tube (201) into the corresponding socket (302) through the straight tube (405); Step 2: Control the straight cylinder (405) to slide along the movable gap (404), and insert the tube body (201) into other insertion holes (302) in sequence to complete the storage; Step 3: When it is necessary to remove the tube body (201), control the inner cylinder (501) to move down, so that the gripping head (503) contacts the tube cover (202) and continues to move down to its bottom. Use the torsion spring (506) to control the gripping head (503) to clamp the tube cover (202). Step 4: After clamping, move the inner cylinder (501) upward. By sliding the slider 1 (508) and slider 2 (509), the inner cylinder (501) and extension rod (507) are extended upward, thereby lifting the test tube (200).

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