A laboratory portable cold box

Abstract

This utility model relates to the field of portable refrigerator technology and discloses a portable laboratory refrigerator, including a box body. An interface is provided at the bottom right end of the box body. A quick-change mechanism is provided inside the interface. Mounting grooves are provided on both the front and rear sides of the box body's interior. A fixing mechanism is provided between adjacent mounting grooves. The quick-change mechanism includes two conductive plates, the left ends of which are respectively fixedly connected to the front and rear sides of the left end of the interface's interior. Sliding grooves are provided on both the front and rear sides of the interface's interior. A battery compartment is slidably connected to the inner walls of the two sliding grooves. In this utility model, the battery compartment is pushed into the box body along the sliding grooves inside the interface. The conductive post contacts the conductive plate, establishing circuit continuity. A spring releases its elastic force, pushing a positioning wedge downwards and engaging it in a wedge groove. A lever, via a guide rod, moves the positioning wedge upwards. A second spring releases its elastic force, pushing a push plate to eject the battery compartment outwards.

Description

Technical Field

[0001] This utility model relates to the field of portable refrigerator technology, and in particular to a portable laboratory refrigerator. Background Technology

[0002] Laboratory cold storage boxes are small refrigeration devices designed specifically for laboratory settings for the low-temperature storage and transportation of samples. Their core function is to maintain a stable low-temperature environment inside through specific refrigeration technology and to have laboratory-specific characteristics such as corrosion resistance and leak prevention.

[0003] As scientific research demands higher standards for sample integrity and experimental repeatability, and as mobile experimental scenarios increase, the complex environments outside the laboratory place greater demands on the portability and anti-interference capabilities of equipment. Traditional equipment struggles to cope with these challenges, thus necessitating a portable laboratory refrigerator to maintain the low-temperature stability of samples during transportation and ensure the accuracy of experimental data.

[0004] Early cryogenic storage and transportation devices consisted of a combination of ordinary insulated boxes and ice packs / dry ice. The insulated box served as the main structure, providing basic insulation, while the ice packs or dry ice provided the low-temperature environment. However, because the insulated box relied on a single material, foam, for insulation, the insulation time was short, and the release of cold energy from the ice packs or dry ice was uncontrollable. To solve these problems, existing technologies replaced ice packs with semiconductor refrigeration or compressor refrigeration systems to achieve precise temperature control. However, in practical use, due to the limited battery capacity, it was impossible to support long-term temperature measurement or active cooling. Furthermore, the battery module was installed internally and rigidly connected to the box with glue or multiple screws. When replacement was needed, it required tools for disassembly, which was cumbersome and could not quickly maintain cooling, thus failing to meet the needs of users. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a portable laboratory refrigerator box, which aims to improve the problem that the battery module needs to be disassembled with tools when it is replaced in the prior art, and cannot be replaced quickly to maintain refrigeration.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a portable laboratory refrigerator box, including a box body, an interface is provided at the bottom right end of the box body, a quick-change mechanism is provided inside the interface, and mounting slots are provided on both the front and rear sides of the box body, with a fixing mechanism provided between adjacent mounting slots.

[0007] The quick-change mechanism includes two conductive plates, the left ends of which are fixedly connected to the front and rear sides of the inner left end of the interface, respectively. Sliding grooves are provided on both the front and rear sides of the interface. A battery compartment is slidably connected to the inner walls of the two sliding grooves. A wedge groove is provided on the top right side of the battery compartment. A recess is provided on the top right side of the interface. A positioning wedge is slidably connected inside the recess. A spring is fixedly connected to the top of the recess, and the bottom of the spring is fixedly connected to the top of the positioning wedge. An unlocking groove is provided in the lower right part of the housing. A lever is slidably connected to the bottom of the unlocking groove. A guide rod is fixedly connected to the top of the positioning wedge. The top of the guide rod passes through the top of the recess and is fixedly connected to the bottom of the lever. Conductive posts are fixedly connected to the front and rear ends of the left side of the battery compartment. A pop-out component is provided on the left side of the battery compartment.

[0008] As a further description of the above technical solution:

[0009] The fixing mechanism includes a housing. The front and rear ends of the housing are slidably connected to the inner sides of corresponding mounting slots. An adjustment knob is rotatably connected to the middle of the left end of the housing. The right end of the adjustment knob passes through the left end of the housing and is fixedly connected to a gear. Racks are slidably connected to the upper and lower ends of the housing. Both racks are meshed with the gear. Springs are fixedly connected to the opposite ends of the two racks. The opposite ends of the two springs are fixedly connected to the front and rear sides of the housing. Guide grooves are provided on the upper and lower sides of the right end of the housing. Multiple connecting posts are fixedly connected to the right ends of the two racks. The outer walls of the multiple connecting posts are slidably connected to the inner walls of the corresponding guide grooves. Fixed plates are fixedly connected to the right ends of the multiple connecting posts. Multiple pads are fixedly connected to the bottom of the right end of the housing.

[0010] As a further description of the above technical solution:

[0011] The pop-out component includes two springs. The left ends of the two springs are fixedly connected to the front and rear sides of the inner left end of the interface, respectively, and the right ends of the two springs are fixedly connected to push plates.

[0012] As a further description of the above technical solution:

[0013] The bottom of the box has a cavity, and a cooling plate is fixedly connected to the bottom of the cavity. Multiple flow channels are provided on the inner bottom of the box.

[0014] As a further description of the above technical solution:

[0015] The box body is provided with a lid at the top, and the bottom left and right sides of the rear end of the lid are fixedly connected with hinges. The lid is rotatably connected to the box body through the hinges.

[0016] As a further description of the above technical solution:

[0017] The bottom left and right sides of the front end of the lid are fixedly connected with locking hooks, and the top left and right sides of the front end of the box body are fixedly connected with locking rings.

[0018] As a further description of the above technical solution:

[0019] Support frames are fixedly connected to the upper middle part of the left and right sides of the box. Rotating rods are rotatably connected to the inner sides of the two support frames. The front end of the rotating rod on the right side passes through the inner front end of the corresponding support frame and is fixedly connected to a knob. The top of the outer wall of the two rotating rods is fixedly connected to the same connecting strap.

[0020] As a further description of the above technical solution:

[0021] The right ends of the multiple connecting posts at the bottom are fixedly connected to the bottom left side of the corresponding fixing plate, and the right ends of the multiple connecting posts at the top are fixedly connected to the top left side of the corresponding fixing plate. The positions of the two conductive sheets correspond to the positions of the corresponding conductive posts.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the battery compartment is pushed into the box body along the sliding groove in the interface. The positioning wedge is pushed upward and moves upward. The conductive post contacts the conductive sheet to realize the conduction of the circuit. The wedge groove at the top of the battery compartment is aligned with the positioning wedge. Spring 1 releases its elastic force to push the positioning wedge down and lock into the wedge groove, thus fixing the battery compartment. When replacing the battery, the lever drives the positioning wedge to move upward through the guide rod to release the lock. Spring 2 releases its elastic force and pushes the push plate to pop the battery compartment outward.

[0024] 2. In this utility model, when fixing the sample, rotating the adjustment knob drives the gear to rotate. The meshing transmission between the gear and the upper and lower racks converts the rotational motion into linear motion in opposite directions for the two racks. At the same time, the two racks drive the corresponding fixing plates to move synchronously in opposite directions through the corresponding connecting columns, thereby realizing the adjustment of the spacing between the fixing plates. When the adjustment knob is released, the spring releases the preload force and pushes the racks to reset, so that the fixing plates automatically fit the sample surface, thus clamping samples of different sizes. Attached Figure Description

[0025] Figure 1 This is a perspective view of a portable laboratory refrigerator box proposed in this utility model;

[0026] Figure 2 This is a front view of a portable laboratory refrigerator box proposed in this utility model;

[0027] Figure 3This is a cross-sectional view of the body of a portable laboratory refrigerator box proposed in this utility model;

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0029] Figure 5 This is a schematic diagram of the battery compartment of a portable laboratory refrigerator proposed in this utility model;

[0030] Figure 6 This is a cross-sectional view of the shell of a portable laboratory refrigerator according to the present invention.

[0031] Legend:

[0032] 1. Box body; 2. Interface; 3. Quick-change mechanism; 301. Conductive sheet; 302. Slide groove; 303. Battery compartment; 304. Wedge groove; 305. Groove; 306. Positioning wedge; 307. Spring 1; 308. Guide rod; 309. Unlocking groove; 310. Toggle plate; 311. Conductive post; 312. Pop-out assembly; 3121. Spring 2; 3122. Push plate; 4. Mounting groove; 5. Fixing Mechanism; 501, Housing; 502, Adjusting knob; 503, Gear; 504, Rack; 505, Spring 3; 506, Guide groove; 507, Connecting column; 508, Fixing plate; 509, Pad; 6, Cavity; 7, Cooling chip; 8, Flow guide groove; 9, Cover; 10, Hinge; 11, Locking hook; 12, Locking ring; 13, Support frame; 14, Rotating rod; 15, Knob; 16, Connecting belt. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 3 , Figure 4 and Figure 5 The present invention provides an embodiment of a portable laboratory refrigerator box, comprising a box body 1, an interface 2 at the bottom right end of the box body 1, a quick-change mechanism 3 inside the interface 2, and mounting grooves 4 on both the front and rear sides of the box body 1, with a fixing mechanism 5 between adjacent mounting grooves 4.

[0035] The quick-change mechanism 3 includes two conductive plates 301. The left ends of the two conductive plates 301 are fixedly connected to the front and rear sides of the left end of the interface 2, respectively. When the conductive plates 301 contact the conductive posts 311, they effectively transmit the working current. The front and rear sides of the interface 2 are provided with sliding grooves 302. The inner walls of the two sliding grooves 302 are slidably connected to the same battery compartment 303. The sliding grooves 302 provide constraints for the battery compartment 303, allowing the battery compartment 303 to slide axially while preventing lateral swaying and vertical displacement, ensuring precise docking between the conductive posts 311 and the conductive plates 301. The top right side of the battery compartment 303 is provided with a wedge groove 304, which engages with a positioning wedge 306. The top right side of the interface 2 is provided with a recess 305, which is slidably connected inside the recess 305. A positioning wedge 306 is attached. A spring 307 is fixedly connected to the top of the inside of the groove 305. The spring 307 ensures reliable locking of the positioning wedge 306 and the wedge groove 304. The bottom of the spring 307 is fixedly connected to the top of the positioning wedge 306. An unlocking groove 309 is provided in the lower right part of the box 1. A lever 310 is slidably connected to the bottom of the unlocking groove 309. A guide rod 308 is fixedly connected to the top of the positioning wedge 306. The lever 310 drives the positioning wedge 306 to move upward through the guide rod 308. The top of the guide rod 308 passes through the top of the inside of the groove 305 and is fixedly connected to the bottom of the lever 310. Conductive posts 311 are fixedly connected to the front and rear ends of the left side of the battery compartment 303. An ejection component 312 is provided on the left side of the battery compartment 303.

[0036] The pop-out component 312 includes two springs 3121. The springs 3121 provide a pushing force to push the battery compartment 303 out of the box 1. The left ends of the two springs 3121 are fixedly connected to the front and rear sides of the left side of the interface 2, respectively. The right ends of the two springs 3121 are fixedly connected to push plates 3122.

[0037] Specifically, when installing the battery, the battery compartment 303 is pushed into the housing 1 along the slide groove 302 in the interface 2. The slide groove 302 provides precise guidance for the battery compartment 303, preventing misalignment during installation. During the pushing process, the front end of the battery compartment 303 contacts and applies pressure to the inclined surface of the positioning wedge 306, forcing the positioning wedge 306 to move upward against the elastic force of the spring 307. At this time, the spring 307 is in a compressed state and stores energy. When the battery compartment 303 is fully pushed into place, the conductive post 311 on its left side contacts the conductive plate 301 in the interface 2, realizing automatic circuit connection. At the same time, the wedge groove 304 on the top of the battery compartment 303 contacts the positioning wedge 306. When the wedge 306 is aligned, the spring 307 releases its stored elastic force, pushing the positioning wedge 306 downward and locking it into the wedge groove 304, thus locking the battery compartment 303. The left side of the battery compartment 303 compresses the push plate 3122, causing the spring 3121 to compress. When replacing the battery, the lever 310 on the right side of the housing 1 is moved. The lever 310 drives the positioning wedge 306 upward through the guide rod 308, causing it to disengage from the wedge groove 304 and release the lock. The compressed spring 3121 releases its energy, pushing the push plate 3122 to pop the battery compartment 303 outward along the slide groove 302 for easy removal, thus achieving quick battery replacement.

[0038] Reference Figure 3 and Figure 6 The fixing mechanism 5 includes a housing 501. The front and rear ends of the housing 501 are slidably connected to the inner sides of the corresponding mounting grooves 4. The housing 501 slides laterally along the mounting grooves 4, and its fixing position can be flexibly adjusted according to the number of samples. An adjusting knob 502 is rotatably connected to the middle of the left end of the housing 501. The right end of the adjusting knob 502 passes through the left end of the housing 501 and is fixedly connected to a gear 503. Rotating the adjusting knob 502 drives the gear 503 to rotate synchronously. Racks 504 are slidably connected to the upper and lower ends of the interior of the housing 501. Both racks 504 are meshed with the gears 503. The upper and lower sides of the gears 503 mesh with the racks 504 respectively, forming a reverse transmission mechanism. The two racks 504 are far apart. Two springs 505 are fixedly connected to one end of each of the two racks 504. The ends of the two springs 505 are fixedly connected to the front and rear sides of the interior of the housing 501, respectively. Guide grooves 506 are provided on the upper and lower sides of the right end of the housing 501. Multiple connecting posts 507 are fixedly connected to the right ends of the two racks 504. The outer walls of the multiple connecting posts 507 are slidably connected to the inner walls of the corresponding guide grooves 506. The guide grooves 506 form an axial constraint on the connecting posts 507, ensuring that the connecting posts 507 can only slide in the horizontal direction, and preventing the fixing plate 508 from swaying when moving. The right ends of the multiple connecting posts 507 are fixedly connected to the fixing plate 508. Multiple pads 509 are fixedly connected to the bottom of the right end of the housing 501.

[0039] The right ends of multiple connecting posts 507 at the bottom are fixedly connected to the bottom left side of the corresponding fixing plate 508, and the right ends of multiple connecting posts 507 at the top are fixedly connected to the top left side of the corresponding fixing plate 508. The positions of the two conductive pieces 301 correspond to the positions of the corresponding conductive posts 311. The upper and lower racks 504 drive the fixing plates 508 to move through the corresponding connecting posts 507, so that the two opposing fixing plates 508 move in opposite directions.

[0040] Specifically, the housing 501 slides laterally within the mounting groove 4 to adjust its position. After sliding to the predetermined target position, the housing 501 is fixed through the notch in the mounting groove 4, thus completing the position fixation of the fixing mechanism 5. When fixing the sample, rotating the adjustment knob 502 drives the gear 503 to rotate. The meshing transmission between the gear 503 and the upper and lower racks 504 converts the rotational motion into linear motion in opposite directions for the two racks 504. At the same time, the two racks 504 drive the corresponding fixing plates 508 synchronously through the corresponding connecting columns 507. The plates move in the opposite direction to adjust the spacing between the fixing plates 508 to accommodate samples of different sizes. The guide groove 506 limits the sliding of the connecting column 507, ensuring that the fixing plates 508 always move horizontally and avoid deviation. When the sample is placed between the fixing plates 508 and supported by the bottom pad 509, the adjustment knob 502 is released, and the spring 3 505 releases its preload to push the rack 504 back to its original position, so that the fixing plates 508 fit against the sample surface. With the support of the bottom pad 509, the sample is stably clamped.

[0041] Reference Figure 2 , Figure 3 and Figure 5 The bottom of the box body 1 has a cavity 6, and a cooling plate 7 is fixedly connected to the bottom of the cavity 6. The cooling plate 7 is used for cooling and works with the box body 1 to refrigerate the sample. Multiple guide grooves 8 are provided on the inner bottom of the box body 1. The guide grooves 8 are used to distribute cold air. The top of the box body 1 is provided with a box cover 9, which is used to close the box body 1. Hinges 10 are fixedly connected to the left and right sides of the bottom rear end of the box cover 9. The box cover 9 can be flipped to open the box body 1 through the hinges 10. The box cover 9 is rotatably connected to the box body 1 through the hinges 10. Locking hooks 11 are fixedly connected to the left and right sides of the bottom front end of the cover. Locking rings 12 are fixedly connected to the left and right sides of the top front end of the box body 1. The cooperation of the locking rings 12 and the locking hooks 11 prevents the box cover 9 from being opened accidentally.

[0042] Support frames 13 are fixedly connected to the upper middle part of the left and right sides of the box 1. Rotating rods 14 are rotatably connected to the inner side of the two support frames 13. The rotating rods 14 can be used to wrap the connecting strip 16. The front end of the right rotating rod 14 passes through the inner front end of the corresponding support frame 13 and is fixedly connected to a knob 15. The same connecting strip 16 is fixedly connected to the top of the outer wall of the two rotating rods 14.

[0043] Specifically, the cooling element 7 operates within the cavity 6, distributing the emitted cold air through the guide groove 8 into the box 1 to ensure the refrigeration effect of the sample. The box lid 9 rotates via the hinge 10, facilitating the opening of the box 1 to store or remove samples. When the box lid 9 is closed, the locking ring 12 is rotated and hooked onto the inside of the locking hook 11, thereby fixing the box lid 9 to the box 1 and preventing accidental opening of the box lid 9 due to bumps. The box 1 can be easily carried via the connecting strap 16. When the connecting strap 16 is not needed, to prevent the connecting strap 16 from becoming tangled, the knob 15 is rotated, which drives the corresponding rotating rod 14 to rotate. One side of the connecting strap 16 is fixedly connected to the rotating rod 14. By rotating the rotating rod 14, the connecting strap 16 is wrapped around the outside of the rotating rod 14, thus achieving the storage of the connecting strap 16.

[0044] Working principle: When installing the battery, the battery compartment 303 is pushed into the housing 1 along the slide groove 302 in the interface 2. The slide groove 302 provides precise guidance for the battery compartment 303, avoiding misalignment during installation. During the pushing process, the front face of the battery compartment 303 will press against the inclined surface of the positioning wedge 306, forcing the positioning wedge 306 to move upward against the elastic force of the spring 307. At the same time, the spring 307 is compressed and stored energy. When the battery compartment 303 is fully pushed into place, the conductive post 311 on the left side of the battery compartment 303 contacts the conductive plate 301 in the interface 2, realizing automatic circuit conduction without the need for manual insertion or removal of wires. The wedge groove 304 on the top of the battery compartment 303 and the positioning wedge 306 are positioned... When aligned, spring 307 releases its elastic force to push positioning wedge 306 downward, causing it to engage with wedge groove 304, thus completing the mechanical locking of battery compartment 303. Battery compartment 303 is firmly fixed to prevent loosening caused by transportation bumps. At the same time, the left side of battery compartment 303 presses push plate 3122, causing spring 3121 to compress and store energy, reserving thrust for subsequent disassembly. When replacing the battery, turn the lever 310 on the right side of box 1. Lever 310 drives positioning wedge 306 upward through guide rod 308, causing it to disengage from wedge groove 304 and release the lock. The compressed spring 3121 releases its elastic force, pushing push plate 3122 to eject battery compartment 303 outward along slide groove 302.

[0045] Furthermore, the housing 501 adjusts its position laterally along the box body 1 by sliding its front and rear ends against the mounting groove 4. After sliding to the target position, the housing 501 is locked in place by the notch in the mounting groove 4, thus locking the position of the fixing mechanism 5. This adapts to the placement requirements of different numbers of samples. When fixing the sample, rotating the adjustment knob 502 drives the gear 503 to rotate. The meshing transmission between the gear 503 and the upper and lower racks 504 converts the rotational motion into linear motion in the opposite direction of the two racks 504. At the same time, the two racks 504 drive the corresponding fixing plates 508 synchronously in the opposite direction through the corresponding connecting columns 507. The guide groove 506 moves to adjust the spacing between the fixing plates 508, allowing for the clamping of samples of different sizes. The guide groove 506 limits the sliding of the connecting column 507, ensuring that the fixing plates 508 always move horizontally and avoid deviation. When the sample is placed between the fixing plates 508 and supported by the bottom pad 509, the adjustment knob 502 is released, and the spring 3 505 releases its preload, pushing the rack 504 to reset, so that the fixing plates 508 automatically fit against the sample surface. The elastic potential energy of the spring 3 505 is converted into a continuous clamping force, which, together with the support of the bottom pad 509, prevents the sample from tipping over.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A laboratory portable cold box comprising a box body (1), characterized in that: The box (1) has an interface (2) at the bottom right end. The interface (2) is equipped with a quick-change mechanism (3). The box (1) has mounting slots (4) on both the front and back sides. A fixing mechanism (5) is provided between the two adjacent mounting slots (4). The quick-change mechanism (3) includes two conductive plates (301). The left ends of the two conductive plates (301) are fixedly connected to the front and rear sides of the left side of the interface (2). The front and rear sides of the interface (2) are provided with sliding grooves (302). The inner walls of the two sliding grooves (302) are slidably connected to the same battery compartment (303). The top right side of the battery compartment (303) is provided with a wedge groove (304). The top right side of the interface (2) is provided with a groove (305). The inside of the groove (305) is slidably connected with a positioning wedge (306). The top of the inside of the groove (305) is fixedly connected with a spring. 307), the bottom of the spring (307) is fixedly connected to the top of the positioning wedge (306), the lower right part of the box (1) is provided with an unlocking groove (309), the bottom of the unlocking groove (309) is slidably connected with a lever (310), the top of the positioning wedge (306) is fixedly connected with a guide rod (308), the top of the guide rod (308) passes through the top of the groove (305) and is fixedly connected to the bottom of the lever (310), the front and rear ends of the left side of the battery compartment (303) are both fixedly connected with conductive posts (311), and the left side of the battery compartment (303) is provided with a pop-out component (312).

2. A laboratory portable cold box according to claim 1, characterized in that: The fixing mechanism (5) includes a housing (501). The front and rear ends of the housing (501) are slidably connected to the inner sides of the corresponding mounting slots (4). An adjusting knob (502) is rotatably connected to the middle of the left end of the housing (501). The right end of the adjusting knob (502) passes through the left end of the housing (501) and is fixedly connected to a gear (503). Racks (504) are slidably connected to the upper and lower ends inside the housing (501). Both racks (504) are meshed with the gears (503). Springs are fixedly connected to the opposite ends of the two racks (504). (505), the two springs (505) are respectively fixedly connected to the front and rear sides of the interior of the housing (501) at opposite ends. The upper and lower sides of the right end of the housing (501) are provided with guide grooves (506). The right ends of the two racks (504) are fixedly connected with multiple connecting posts (507). The outer walls of the multiple connecting posts (507) are respectively slidably connected to the inner walls of the corresponding guide grooves (506). The right ends of the multiple connecting posts (507) are fixedly connected with fixing plates (508). The bottom of the right end of the housing (501) is fixedly connected with multiple pads (509).

3. A laboratory portable cold box as claimed in claim 1, wherein: The pop-out component (312) includes two springs (3121), the left ends of the two springs (3121) are fixedly connected to the front and rear sides of the inner left end of the interface (2) respectively, and the right ends of the two springs (3121) are fixedly connected to push plates (3122).

4. A laboratory portable cold box according to claim 1, characterized in that: The bottom of the box (1) is provided with a cavity (6), and a cooling chip (7) is fixedly connected to the bottom of the cavity (6). Multiple guide grooves (8) are provided on the inner bottom of the box (1).

5. A laboratory portable cooler box as claimed in claim 1, wherein: The top of the box body (1) is provided with a box cover (9), and the bottom left and right sides of the rear end of the box cover (9) are fixedly connected with hinges (10). The box cover (9) is rotatably connected to the box body (1) through the hinges (10).

6. A laboratory portable cold box according to claim 5, characterised in that: The bottom left and right sides of the front end of the lid (9) are fixedly connected with locking hooks (11), and the top left and right sides of the front end of the box body (1) are fixedly connected with locking rings (12).

7. A laboratory portable cooler box as claimed in claim 1, wherein: The upper middle part of the left and right sides of the box (1) is fixedly connected to a support frame (13). The inner side of the two support frames (13) is rotatably connected to a rotating rod (14). The front end of the rotating rod (14) on the right side passes through the inner front end of the corresponding support frame (13) and is fixedly connected to a knob (15). The top of the outer wall of the two rotating rods (14) is fixedly connected to the same connecting strap (16).

8. A laboratory portable cooler box as claimed in claim 2, wherein: The right ends of the multiple connecting posts (507) at the bottom are fixedly connected to the bottom left side of the corresponding fixing plate (508), and the right ends of the multiple connecting posts (507) at the top are fixedly connected to the top left side of the corresponding fixing plate (508). The positions of the two conductive pieces (301) correspond to the positions of the corresponding conductive posts (311).

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