Biological sample low-temperature storage equipment

Abstract

The biological sample low-temperature storage equipment comprises a storage box, a cover plate is arranged on the outer wall of the storage box through a lock catch, a refrigeration module is arranged on the outer wall of the bottom end of the storage box, a pushing mechanism is arranged on the inner wall of the storage box, and a rotating mechanism is arranged on the inner wall of the storage box; and the rotating mechanism comprises a rotating rod, the inner wall of the storage box is fixedly connected with a fixing ring, the outer wall of the rotating rod is provided with a moving block through a telescopic rod, and the inner wall of the bottom end of the moving block is elastically connected with a moving rod through a connecting spring. Through the arrangement of the moving block and the clamping block, a tubular biological sample can be placed in the moving block, and then a moving rod is pressed downwards, so that the tubular biological sample can be conveniently and quickly clamped, and the stability of the tubular biological sample during storage is improved; and the problem of damage caused by collision due to bumping or shaking in the transportation process is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of biological storage equipment, and in particular to a biological sample low-temperature storage equipment. Background Art

[0002] Biological sample cryogenic storage equipment is a professional device used to preserve biological samples in a low-temperature environment. Through precise temperature control technology, it can maintain the activity and stability of samples for a long time, effectively prevent sample degradation and deterioration, and provide sample storage guarantees for many fields such as biomedical research, clinical diagnosis, and biological sample library construction.

[0003] In biomedical research, cylindrical test tubes are used to place biological samples. When the operator completes the collection of biological samples, they are placed in a low-temperature storage device for storage or transportation. During transportation, tubular biological samples are easily bumped or shaken, resulting in collisions, causing damage or rupture of the samples and the test tubes. Therefore, the tubular biological samples need to be clamped. In some existing technologies, the clamps are fixed in the storage box by bolts. Each time a group of biological samples is placed, the position of the clamps needs to be adjusted by turning the bolts multiple times before they can be fixed. This is inconvenient, time-consuming and labor-intensive. Therefore, a biological sample low-temperature storage device is proposed to address the above problems. Summary of the invention

[0004] In view of this, the purpose of the present invention is to overcome the deficiencies in the prior art and provide a biological sample cryogenic storage device. The present application provides the following technical solutions:

[0005] A biological sample low-temperature storage device comprises a storage box, the outer wall of the storage box is provided with a cover plate through a lock, the bottom outer wall of the storage box is provided with a refrigeration module, the inner wall of the storage box is provided with a pushing mechanism, and the inner wall of the storage box is provided with a rotating mechanism;

[0006] The rotating mechanism includes a rotating rod, the inner wall of the storage box is fixedly connected with a fixing ring, the outer wall of the rotating rod is provided with a moving block via a telescopic rod, the inner wall of the bottom end of the moving block is elastically connected with the moving rod via a connecting spring, the outer wall of the moving rod is hinged with a slider via a connecting rod, the top outer wall of the slider is fixedly connected with a clamping block, the top outer wall of the moving block is fixedly connected with a fixed block A, the inner wall of the fixed block A is elastically connected with a wedge block via a return spring, the top outer wall of the cover plate is fixedly connected with a fixed block B, and the inner wall of the fixed block B is elastically connected with a clamping block via a telescopic spring.

[0007] In a possible embodiment, the rotating rod is rotatably connected to the inner wall of the fixing ring, and a groove is formed on the outer wall of the rotating rod.

[0008] In a possible embodiment, one end of the connecting spring is fixedly connected to the inner wall of the bottom end of the moving block, the other end of the connecting spring is fixedly connected to the outer wall of the moving rod, and the moving rod is slidably connected to the inner wall of the moving block.

[0009] In a possible embodiment, the movable end of the telescopic rod is fixedly connected to the outer wall of the moving block, and the telescopic rod is fixedly connected to the outer wall of the rotating rod.

[0010] In a possible embodiment, one end of the return spring is fixedly connected to the inner wall of the fixed block A, and the other end of the return spring is fixedly connected to the outer wall of the wedge block. The outer wall of the wedge block is slidably connected to the inner wall of the fixed block A, and the wedge block contacts the top outer wall of the moving rod.

[0011] In a possible embodiment, one end of the telescopic spring is fixedly connected to the inner wall of the fixed block B, and the other end of the telescopic spring is fixedly connected to the outer wall of the clamping block. The outer wall of the clamping block is slidably connected to the inner wall of the fixed block B, and the clamping block is clamped in the clamping slot.

[0012] In a possible embodiment, the pushing mechanism includes a rotating shaft, which is elastically connected to the inner wall of the storage box through a compression spring, the outer wall of the rotating shaft is fixedly connected to a triangular block, the outer wall of the triangular block is slidably connected to a cross bar, the bottom inner wall of the storage box is slidably connected to a partition, and the bottom inner wall of the storage box is fixedly connected to a guide block.

[0013] In a possible embodiment, the rotating shaft is rotatably connected to the inner wall of the rotating rod, and the rotating shaft is slidably connected to the outer wall of the guide block.

[0014] In a possible embodiment, one end of the compression spring is fixedly connected to the inner wall of the storage box, and the other end of the compression spring is fixedly connected to the outer wall of the rotating shaft.

[0015] In a possible embodiment, the cross bar is fixedly connected to the outer wall of the partition, and the partition is in contact with the outer wall of the moving block.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] The present invention can place the tubular biological sample inside the movable block, and then press the movable rod downward to drive the two groups of connecting rods to flip, so that the two groups of clamping blocks move toward the middle at the same time and fit with the outer wall of the tubular biological sample, and limit the movable rod by the wedge block, so that the tubular biological sample can be clamped conveniently and quickly, and thus it is not necessary to adjust the position of the clamp by rotating the bolts or other methods for many times, which is convenient for operation; furthermore, the present invention can rotate the tubular biological sample and the movable block to a position corresponding to the partition by rotating the rotating rod through the arrangement of the rotating shaft and the partition, and press the rotating shaft downward to drive the partition to move outward through the triangular block, and push the movable block to move outward synchronously, that is, when the baffle is opened, the group of movable blocks can be moved to the outside of the storage box, at this time, the wedge block can be pressed to release the limit of the movable rod, release the clamping of the tubular biological sample and take it out, so that it is not necessary to remove the cover plate as a whole to take out the sample, and only when the baffle is opened, the cold air leakage inside the storage box is reduced, thereby better ensuring the low temperature state inside the storage box.

[0018] In order to make the above-mentioned objects, features and advantages of the present application more obvious and understandable, preferred embodiments are given below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the storage box cross section and the structure after the cover plate is exploded;

[0022] Figure 3 It is a schematic diagram of the structure of the rotating mechanism and the pushing mechanism of the present invention;

[0023] Figure 4 It is a schematic diagram of the cross section of the moving block and the clamping block structure of the present invention;

[0024] Figure 5 The present invention Figure 3 The enlarged structural diagram of part A in the middle;

[0025] Figure 6 The present invention Figure 4 The enlarged structural diagram of part B in the middle;

[0026] Figure 7It is a schematic diagram of the structure after the cover plate, the fixed block B section and the rotating rod are decomposed according to the present invention;

[0027] Figure 8 It is a schematic diagram of the cross section of the storage box and the pushing mechanism structure of the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of the rotating shaft, rotating rod section and guide block of the present invention.

[0029] Figure markings: 1-storage box; 2-rotating mechanism; 201-rotating rod; 202-card slot; 203-fixing ring; 204-moving block; 205-telescopic rod; 206-clamping block; 207-connecting spring; 208-moving rod; 209-connecting rod; 210-reset spring; 211-fixed block A; 212-slider; 213-wedge block; 3-pushing mechanism; 301-rotating shaft; 302-compression spring; 303-triangular block; 304-partition; 305-cross bar; 306-guide block; 4-cover plate; 5-lock; 6-baffle; 7-refrigeration module; 8-fixed block B; 9-telescopic spring; 10-card block. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0031] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] Embodiment 1:

[0034] Please refer to Figure 1-9 As shown, a biological sample low-temperature storage device provided in the first embodiment includes a storage box 1, the outer wall of the storage box 1 is provided with a cover plate 4 through a lock 5, the outer wall of the bottom end of the storage box 1 is provided with a refrigeration module 7, the inner wall of the storage box 1 is provided with a pushing mechanism 3, and the inner wall of the storage box 1 is provided with a rotating mechanism 2; the rotating mechanism 2 includes a rotating rod 201, the inner wall of the storage box 1 is fixedly connected with a fixing ring 203, the outer wall of the rotating rod 201 is provided with a moving block 204 through a telescopic rod 205, and the moving block 204 The inner wall of the bottom end is elastically connected to the moving rod 208 through a connecting spring 207, the outer wall of the moving rod 208 is hinged with a slider 212 through a connecting rod 209, the top outer wall of the slider 212 is fixedly connected with a clamping block 206, the top outer wall of the moving block 204 is fixedly connected with a fixed block A211, the inner wall of the fixed block A211 is elastically connected with a wedge block 213 through a reset spring 210, the top outer wall of the cover plate 4 is fixedly connected with a fixed block B8, and the inner wall of the fixed block B8 is elastically connected with a clamping block 10 through a telescopic spring 9.

[0035] In the above-mentioned first embodiment, the storage box 1 is a main body of the low-temperature storage device shell for placing biological samples. The refrigeration module 7 arranged below the storage box 1 can keep the inside of the storage box 1 at a low temperature. The tubular biological samples can be placed in the moving block 204 and can be clamped and fixed by the clamping blocks 206 on both sides thereof to maintain their stability and prevent them from being damaged due to bumps or shaking during transportation. The moving block 204 is provided with multiple groups, and multiple groups of tubular biological samples can be placed. After placement, the cover plate 4 can be covered, and the rotating rod 201 passes through the cover plate 4. The cover plate 4 can be fixed by the lock buckles 5 on both sides of the storage box 1, and the baffle 6 is kept closed when not in use to make the storage box 1 sealed. Maintain low temperature; the baffle 6 can also be fixed by the lock 5, and the lock 5 is an existing technology well known to the operator. When the baffle 6 is opened, a group of moving blocks 204 can be pushed outward by the pushing mechanism 3 to take out the tubular biological samples inside, so that there is no need to open the cover 4 as a whole to take out the tubular biological samples, which reduces the degree of cold air leakage and avoids the problem of increased temperature inside the storage box 1 and reduced sample quality; through the setting of the rotating mechanism 2, the rotating rod 201 can be rotated to drive multiple groups of moving blocks 204 to rotate synchronously, so that a group of tubular biological samples that need to be taken out corresponds to the position of the baffle 6, and the baffle 6 can be opened to take out the group of tubular biological samples.

[0036] Please refer to Figure 1-7As shown, the rotating rod 201 is rotatably connected to the inner wall of the fixing ring 203, and a slot 202 is provided on the outer wall of the rotating rod 201; one end of the connecting spring 207 is fixedly connected to the inner wall of the bottom end of the moving block 204, and the other end of the connecting spring 207 is fixedly connected to the outer wall of the moving rod 208, and the moving rod 208 is slidably connected to the inner wall of the moving block 204; the movable end of the telescopic rod 205 is fixedly connected to the outer wall of the moving block 204, and the telescopic rod 205 is fixedly connected to the outer wall of the rotating rod 201; the return spring 21 One end of the resetting spring 210 is fixedly connected to the inner wall of the fixed block A211, and the other end of the resetting spring 210 is fixedly connected to the outer wall of the wedge block 213, and the outer wall of the wedge block 213 is slidably connected to the inner wall of the fixed block A211, and the wedge block 213 contacts the top outer wall of the moving rod 208; one end of the telescopic spring 9 is fixedly connected to the inner wall of the fixed block B8, and the other end of the telescopic spring 9 is fixedly connected to the outer wall of the clamping block 10, and the outer wall of the clamping block 10 is slidably connected to the inner wall of the fixed block B8, and the clamping block 10 is clamped in the clamping slot 202.

[0037] Furthermore, the fixing ring 203 has a relatively fixed effect on the rotating rod 201, so that it can only rotate but cannot move up and down; there are multiple groups of slots 202, and the positions of the fixing block A211 and the block 10 are fixed. When the rotating rod 201 is rotated to different slots 202 corresponding to and engaged with the block 10, the rotating rod 201 can be limited at different positions, so that different moving blocks 204 correspond to the positions of the baffle 6, so that the rotating rod 201 can be rotated and the tubular biological sample to be taken out can be selected; when not affected by external forces, the connecting spring 207 keeps the moving rod 208 in an upward moving state due to its own elastic force, and drives the two groups of connecting rods 209 to flip to a nearly horizontal state. Since the slider 212 is slidably connected to the inner wall of the moving block 204, the two groups of sliders 212 can only move horizontally, so that the two groups of connecting rods 209 can drive the slider 212 remains in the state of being at both sides, driving the corresponding clamping blocks 206 to be at both sides, so that the tubular biological sample can be placed in the moving block 204; by pressing the moving rod 208 downward, the two groups of sliders 212 and the clamping block 206 can be driven to move toward the middle at the same time, and during the movement, the top end of the moving rod 208 squeezes the arc surface of the wedge block 213 to move it to the fixed block A211, and the return spring 210 is forced to shrink; when the clamping block 206 is in contact with the outer wall of the tubular biological sample, the top end of the moving rod 208 is below the wedge block 213. At this time, the return spring 210 causes the wedge block 213 to pop outward due to its own elastic force, and the outer wall of the top end of the moving rod 208 contacts the straight surface of the wedge block 213. The wedge block 213 can limit the moving rod 208, thereby fixing the positions of the slider 212 and the clamping block 206, and maintaining the clamping effect on the tubular biological sample.

[0038] A pull rod is provided on the outer wall of the card block 10, and the pull rod passes through the outer wall of the fixed block B8. By pulling the pull rod, the card block 10 can be driven to move synchronously, so that it is out of contact with a group of card slots 202, and the telescopic spring 9 is forced to shrink, and the limit of the rotating rod 201 is released to rotate the rotating rod 201; when the rotating rod 201 rotates to the position corresponding to the position of a group of moving blocks 204 and the baffle 6, the pull rod can be loosened, and the card block 10 is ejected and engaged with the card slot 202 under the elastic force of the telescopic spring 9, so that the rotating rod 201 can be fixed again, and the group of moving blocks 204 is pushed out by the pushing mechanism 3 and the tubular biological sample is taken out; when the moving block 204 moves outward under the action of the pushing mechanism 3, the telescopic rod 205 can be driven to extend, and the telescopic rod 205 guides the moving block 204, so that the moving block 204 maintains a state of lateral movement and moves outward from the opening at the position of the baffle 6 on the outer wall of the storage box 1.

[0039] Embodiment 2:

[0040] In the second embodiment which is further improved on the basis of the first embodiment, please refer to Figure 8-Figure 9 The embodiment of the present application provides a biological sample low-temperature storage device, wherein the pushing mechanism 3 includes a rotating shaft 301, the rotating shaft 301 is elastically connected to the inner wall of the storage box 1 through a compression spring 302, the outer wall of the rotating shaft 301 is fixedly connected with a triangular block 303, the outer wall of the triangular block 303 is slidably connected with a cross bar 305, the bottom inner wall of the storage box 1 is slidably connected with a partition 304, and the bottom inner wall of the storage box 1 is fixedly connected with a guide block 306; the rotating shaft 301 is rotatably connected to the inner wall of the rotating rod 201, and the rotating shaft 301 is slidably connected to the outer wall of the guide block 306; one end of the compression spring 302 is fixedly connected to the inner wall of the storage box 1, and the other end of the compression spring 302 is fixedly connected to the outer wall of the rotating shaft 301; the cross bar 305 is fixedly connected to the outer wall of the partition 304, and the partition 304 contacts the outer wall of the moving block 204.

[0041] In the above-mentioned second embodiment, the rotating shaft 301 is rotatably connected to the inner wall of the rotating rod 201, and since the guide block 306 in the inner wall of the bottom end of the storage box 1 is in a fixed state, and the guide block 306 is square and slidably connected to the inner wall of the bottom end of the rotating shaft 301, the rotating shaft 301 cannot rotate. When the rotating rod 201 rotates, the rotating shaft 301 remains fixed and the rotating shaft 301 can only move up and down; when not affected by external forces, the compression spring 302 keeps the rotating shaft 301 in a fixed state due to its own elastic force. The bottom slope of the triangular block 303 is in contact with the cross bar 305, driving the partition 304 to remain in a fixed state. At this time, one group of moving blocks 204 is in contact with the outer wall of the partition 304. When the rotating shaft 301 rotates, it will drive multiple groups of moving blocks 204 to rotate synchronously. When the operator needs to take out the tubular biological sample in a group of moving blocks 204, the group of moving blocks 204 can be rotated to the state of contacting with the outer wall of the partition 304, and when the rotating shaft 301 is pressed downward, the moving blocks 204 with The movable triangular block 303 moves downward synchronously, squeezing the compression spring 302. When the triangular block 303 moves downward, its inclined surface squeezes the cross bar 305, so that the cross bar 305 drives the partition 304 to move synchronously. Since the partition 304 is slidably connected to the inner wall of the bottom end of the storage box 1, it keeps moving outward laterally and can push a corresponding group of moving blocks 204 to move outward, so that the group of moving blocks 204 moves to the outside of the storage box 1, and the tubular biological sample therein can be taken out; during the removal process, since only the baffle 6 needs to be opened, and the cover plate 4 does not need to be taken down as a whole to take out the tubular biological sample, the leakage of cold air inside the storage box 1 is reduced, and the low temperature state inside the storage box 1 is maintained; after the removal is completed, the operator can loosen the rotating shaft 301, and it moves upward under the elastic force of the compression spring 302, and drives the triangular block 303 and the partition 304 to reset, and then pushes the moving block 204 back to the inside of the storage box 1, the baffle 6 can be closed, and the low-temperature storage state is maintained.

[0042] When the present invention is used, the storage box 1 is the outer shell body of the low-temperature storage device for tubular biological samples, and the refrigeration module 7 below it keeps the interior of the storage box 1 at a low temperature, providing a suitable storage environment for the biological samples; the elastic force of the connecting spring 207 causes the moving rod 208 to move upward, so that the two groups of sliders 212 and the corresponding clamping blocks 206 are on both sides. When it is necessary to place the tubular biological samples, the operator can open the lock 5 on the cover plate 4, move the cover plate 4 upward and remove it, put multiple groups of tubular biological samples into the corresponding moving blocks 204, and press the moving rod 208 downward to drive the two groups of connecting rods 209 to flip, the connecting spring 207 is forced to shrink, and the connecting rod 209 drives the two groups of sliders 212 and the clamping block 206 to move toward the middle at the same time; When the moving rod 208 moves downward, the arc surface of the wedge block 213 is squeezed to move it to the fixed block A211, and the return spring 210 is forced to shrink; when the clamping block 206 fits the outer wall of the tubular biological sample, the moving rod 208 is below the wedge block 213. At this time, the wedge block 213 pops outward under the elastic force of the return spring 210, and the outer wall of the top end of the moving rod 208 contacts the straight surface of the wedge block 213. The wedge block 213 limits the moving rod 208, thereby fixing the position of the slider 212 and the clamping block 206, so that the tubular biological sample can be clamped and fixed conveniently and quickly, ensuring that the sample will not be damaged due to bumps or shaking during transportation. The moving block 204 is provided with multiple groups, which can hold multiple groups of tubular biological samples.

[0043] After placing the sample, the cover 4 is put on, and the rotating rod 201 passes through the cover 4. The cover 4 can be fixed by the locks 5 on both sides of the storage box 1. The refrigeration module 7 can generate cold air to keep the inside of the storage box 1 at a low temperature. The baffle 6 is kept closed when not in use to further maintain the low temperature environment in the storage box 1.

[0044] When it is necessary to take out the sample, the pull rod is pulled to drive the block 10 to move to the fixed block B8, and the telescopic spring 9 is forced to shrink, so that the block 10 is out of contact with the card slot 202. At this time, the limit of the rotating rod 201 is released, and the rotating rod 201 can be rotated to drive the multiple groups of moving blocks 204 to rotate synchronously; when the group of tubular biological samples to be taken out corresponds to the position of the baffle 6, the moving block 204 containing the group of tubular biological samples contacts the partition 304, and the pull rod can be loosened at this time. Under the elastic force of the telescopic spring 9, the block 10 pops out and engages with the corresponding card slot 202, and the rotating rod 201 is fixed again.

[0045] Then the operator can open the baffle 6 and press the rotating shaft 301 downward to drive the triangular block 303 to move downward synchronously and squeeze the compression spring 302. When the triangular block 303 moves downward, its inclined surface will squeeze the cross bar 305, so that the cross bar 305 drives the partition 304 to move laterally outward synchronously. Since the partition 304 is slidably connected to the inner wall of the bottom end of the storage box 1, the partition 304 pushes the corresponding group of moving blocks 204 to move outward, so that the group of moving blocks 204 moves from the opening at the position of the baffle 6 on the outer wall of the storage box 1 to the outside of the storage box 1. At this time, the wedge block 213 can be pressed to move the wedge block 213 to the inner wall of the fixed block A211 and break away from the outer wall of the top end of the moving rod 208. Under the elastic force of the connecting spring 207, the moving rod 208 moves to The two sets of connecting rods 209 are turned over, so that the two sets of sliders 212 and the clamping block 206 move to both sides at the same time, and break contact with the outer wall of the tubular biological sample, so that the tubular biological sample can be taken out; after the taking out is completed, the rotating shaft 301 is released, and the rotating shaft 301 moves upward under the elastic force of the compression spring 302, and drives the triangular block 303 and the partition 304 to reset, and then the moving block 204 is pushed back into the storage box 1, and the baffle 6 can be closed to maintain the low-temperature storage state; in this way, during the process of taking out the sample, there is no need to remove the cover plate 4 as a whole, but the required tubular biological sample can be taken out by only opening the baffle 6, which reduces the leakage of cold air inside the storage box 1 and effectively maintains the low-temperature state inside the storage box 1.

[0046] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A biological sample cryogenic storage device, characterized in that: It comprises a storage box, the outer wall of which is provided with a cover plate through a lock, the outer wall of the bottom end of the storage box is provided with a refrigeration module, the inner wall of the storage box is provided with a pushing mechanism, and the inner wall of the storage box is provided with a rotating mechanism; The rotating mechanism includes a rotating rod, the inner wall of the storage box is fixedly connected with a fixing ring, the outer wall of the rotating rod is provided with a moving block via a telescopic rod, the inner wall of the bottom end of the moving block is elastically connected with the moving rod via a connecting spring, the outer wall of the moving rod is hinged with a slider via a connecting rod, the top outer wall of the slider is fixedly connected with a clamping block, the top outer wall of the moving block is fixedly connected with a fixed block A, the inner wall of the fixed block A is elastically connected with a wedge block via a return spring, the top outer wall of the cover plate is fixedly connected with a fixed block B, and the inner wall of the fixed block B is elastically connected with a clamping block via a telescopic spring.

2. A biological sample cryogenic storage device according to claim 1, characterized in that: The rotating rod is rotatably connected to the inner wall of the fixing ring, and a clamping groove is provided on the outer wall of the rotating rod.

3. A biological sample cryogenic storage device according to claim 1, characterized in that: One end of the connecting spring is fixedly connected to the inner wall of the bottom end of the moving block, and the other end of the connecting spring is fixedly connected to the outer wall of the moving rod, and the moving rod is slidably connected to the inner wall of the moving block.

4. A biological sample cryogenic storage device according to claim 1, characterized in that: The movable end of the telescopic rod is fixedly connected to the outer wall of the moving block, and the telescopic rod is fixedly connected to the outer wall of the rotating rod.

5. The biological sample cryogenic storage device according to claim 1, characterized in that: One end of the return spring is fixedly connected to the inner wall of the fixed block A, and the other end of the return spring is fixedly connected to the outer wall of the wedge block. The outer wall of the wedge block is slidably connected to the inner wall of the fixed block A, and the wedge block contacts the top outer wall of the moving rod.

6. A biological sample cryogenic storage device according to claim 1, characterized in that: One end of the telescopic spring is fixedly connected to the inner wall of the fixed block B, and the other end of the telescopic spring is fixedly connected to the outer wall of the clamping block. The outer wall of the clamping block is slidably connected to the inner wall of the fixed block B, and the clamping block is clamped in the clamping slot.

7. The biological sample cryogenic storage device according to claim 1, characterized in that: The pushing mechanism includes a rotating shaft, which is elastically connected to the inner wall of the storage box through a compression spring, the outer wall of the rotating shaft is fixedly connected to a triangular block, the outer wall of the triangular block is slidably connected to a cross bar, the bottom inner wall of the storage box is slidably connected to a partition, and the bottom inner wall of the storage box is fixedly connected to a guide block.

8. A biological sample cryogenic storage device according to claim 7, characterized in that: The rotating shaft is rotatably connected to the inner wall of the rotating rod, and the rotating shaft is slidably connected to the outer wall of the guide block.

9. The biological sample cryogenic storage device according to claim 7, characterized in that: One end of the compression spring is fixedly connected to the inner wall of the storage box, and the other end of the compression spring is fixedly connected to the outer wall of the rotating shaft.

10. The biological sample cryogenic storage device according to claim 7, characterized in that: The cross bar is fixedly connected to the outer wall of the partition, and the partition is in contact with the outer wall of the moving block.

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