A cryopreservation box synchronous access device

Abstract

The present invention relates to a synchronous access device for cryogenic storage boxes, which comprises an electric linear guide rail assembly, a rotary telescopic rod assembly and a synchronous access device arranged in sequence from top to bottom. The top of the rotary telescopic rod assembly is connected to the electric linear guide rail assembly, and the bottom is connected to the synchronous access device. The synchronous access device includes an access reciprocating movement limiting track, a synchronous drive assembly, a clamping component and a pumping and discharging component. The access reciprocating movement limiting track includes a first track groove and a second track groove, the first track groove and the second track groove are arranged horizontally and parallel to each other in opposite directions, a synchronous drive assembly is installed in the middle between the first track groove and the second track groove, the clamping component and the pumping and discharging component are respectively installed on the left and right parts, and the front and rear sides of the synchronous drive assembly are respectively connected to the left part of the pumping and discharging component and the right part of the clamping component. The present invention can achieve synchronous access actions of cryogenic storage boxes on both sides at the same time, greatly improving the access efficiency of cryogenic storage boxes.

Description

Technical Field

[0001] The present invention relates to the technical field of cryopreservation and access equipment for biological samples, and particularly relates to a synchronous access equipment for cryoboxes. Background Art

[0002] A biological sample library, also known as a biobank, mainly refers to the standardized collection, processing, storage, and application of biological macromolecules, cells, tissues, and organs of healthy or diseased organisms, including human organ tissues, whole blood, plasma, serum, biological body fluids, or processed biological samples, such as DNA, RNA, proteins, etc., as well as clinical, pathological, treatment, follow-up, informed consent, and other materials related to these biological samples, and their quality control, information management, and application systems. Biological samples are stored in cryotubes, several cryotubes are concentrated in a cryobox, and several cryoboxes are concentrated on a cryoshelf to achieve the simultaneous preservation of multiple groups of biological samples and facilitate the classification management of various biological samples. The existing access to cryoboxes mainly uses transfer devices such as robotic arms to clamp and remove cryoboxes from the cryoshelf or clamp and store cryoboxes on the cryoshelf. However, the existing robotic arm access device can only complete one clamping and removing action of a cryobox or one storing action of a cryobox at the same time, and cannot synchronously complete the clamping action of cryoboxes on both sides and the storing action of cryoboxes at the same time. Therefore, the efficiency of accessing cryoboxes is not high. Summary of the Invention

[0003] The technical problem solved by the present invention is that the existing robotic arm cannot synchronously access cryoboxes on both sides and has a low access efficiency.

[0004] The present invention provides a synchronous access equipment for cryoboxes, which includes an electric linear guide rail assembly, a rotating telescopic rod assembly, and a synchronous access device arranged in sequence from top to bottom. The top of the rotating telescopic rod assembly is connected to the electric linear guide rail assembly, and the bottom is connected to the synchronous access device. The synchronous access device includes an access reciprocating movement limiting track, a synchronous drive assembly, a clamping component, and a pumping and discharging component. The access reciprocating movement limiting track includes a first track groove and a second track groove, the first track groove and the second track groove are arranged horizontally and parallel to each other, the middle of the first track groove and the second track groove is equipped with the synchronous drive assembly, the left and right parts are respectively equipped with the clamping component and the pumping and discharging component, and the front and back sides of the synchronous drive assembly are respectively connected to the left part of the pumping and discharging component and the right part of the clamping component.

[0005] The present invention solves the technical problem that existing robotic arms cannot synchronously access cryopreservation boxes arranged on both sides and have low access efficiency by providing a synchronous access device including an access reciprocating movement limiting track, a synchronous drive assembly, a clamping assembly, and a withdrawing and placing assembly. It can synchronously complete the clamping action of the cryopreservation boxes arranged on both sides and the withdrawing and placing action of the cryopreservation boxes at the same time, greatly improving the access efficiency of the cryopreservation boxes. The present invention drives the clamping assembly and the withdrawing and placing assembly to move synchronously to the left and right sides on the access reciprocating movement limiting track through the synchronous drive assembly, so that when the clamping assembly moves to the left to complete the clamping action of the cryopreservation box on the left side, the withdrawing and placing assembly can move to the right synchronously to complete the withdrawing and placing action of the cryopreservation box on the right side.

[0006] Further, the synchronous drive assembly adopts a gear synchronous drive assembly. The gear synchronous drive assembly includes a second drive motor and a driving gear. The driving gear is installed at the output end of the second drive motor. The clamping assembly includes an L-shaped clamping moving base. A first driven rack is provided on the inner side of the right part of the L-shaped clamping moving base and meshes with the rear end of the driving gear. The right rear part of the L-shaped clamping moving base is placed in the first track groove, and the left front part of the L-shaped clamping moving base is placed in the second track groove. An elastic extrusion plug rod type clamping mechanism is installed on the left part of the L-shaped clamping moving base. The withdrawing and placing assembly includes an L-shaped storage moving base. A second driven rack is provided on the inner side of the left part of the L-shaped storage moving base and meshes with the front end of the driving gear. The left front part of the L-shaped storage moving base is placed in the second track groove, and the right rear part of the L-shaped storage moving base is placed in the first track groove. An elastic hydraulic extraction rod type storage mechanism is installed on the right part of the L-shaped storage moving base.

[0007] The present invention solves the technical problem that existing robotic arms cannot synchronously access cryopreservation boxes arranged on both sides and have low access efficiency by providing a synchronous access device including an access reciprocating movement limiting track, a gear synchronous drive assembly, a clamping assembly with an elastic extrusion plug rod type clamping mechanism, and a withdrawing and placing assembly with an elastic hydraulic extraction rod type storage mechanism. It can synchronously complete the clamping action of the cryopreservation boxes arranged on both sides and the withdrawing and placing action of the cryopreservation boxes at the same time, greatly improving the access efficiency of the cryopreservation boxes. The present invention drives the driving gear to rotate through the second drive motor of the gear synchronous drive assembly, and then the driving gear drives the first driven rack on the L-shaped clamping moving base and the second driven rack on the L-shaped storage moving base at the same time, so that the elastic extrusion plug rod type clamping mechanism installed on the L-shaped clamping moving base moves to the left on the access reciprocating movement limiting track to complete the clamping action of the cryopreservation box on the left side, while the elastic hydraulic extraction rod type storage mechanism installed on the L-shaped storage moving base moves to the right synchronously on the access reciprocating movement limiting track to complete the extraction action of the cryopreservation box on the right side.

[0008] Further, the synchronous drive assembly adopts a sprocket synchronous drive assembly. The sprocket synchronous drive assembly includes a second drive motor and a driving sprocket. The driving sprocket is installed at the output end of the second drive motor. The clamping assembly includes an L-shaped clamping and moving base. A first driven chain is provided on the inner side of the right part of the L-shaped clamping and moving base and meshes with the rear end of the driving sprocket. The right rear part of the L-shaped clamping and moving base is placed in the first track groove, and the left front part of the L-shaped clamping and moving base is placed in the second track groove. An elastic extrusion plug rod type clamping mechanism is installed on the left part of the L-shaped clamping and moving base. The extraction and placement assembly includes an L-shaped storage and moving base. A second driven chain is provided on the inner side of the left part of the L-shaped storage and moving base and meshes with the front end of the driving sprocket. The left front part of the L-shaped storage and moving base is placed in the second track groove, and the right rear part of the L-shaped storage and moving base is placed in the first track groove. An elastic hydraulic extraction rod type storage mechanism is installed on the right part of the L-shaped storage and moving base.

[0009] By providing a synchronous access device including an access reciprocating movement limiting track, a sprocket synchronous drive assembly, a clamping assembly with an elastic extrusion plug rod type clamping mechanism, and an extraction and placement assembly with an elastic hydraulic extraction rod type storage mechanism, the present invention solves the technical problem that the existing robotic arm cannot synchronously access and store cryogenic boxes on both sides and has a low access and storage efficiency. It can synchronously complete the clamping action of the cryogenic boxes on both sides and the extraction and placement action of the cryogenic boxes at the same time, greatly improving the access and storage efficiency of the cryogenic boxes. In the present invention, the second drive motor of the sprocket synchronous drive assembly drives the driving sprocket to rotate, and then the driving sprocket simultaneously drives the first driven chain on the L-shaped clamping and moving base and the second driven chain on the L-shaped storage and moving base, so that the elastic extrusion plug rod type clamping mechanism installed on the L-shaped clamping and moving base moves leftward on the access reciprocating movement limiting track to complete the action of clamping the cryogenic box on the left side, while the elastic hydraulic extraction rod type storage mechanism installed on the L-shaped storage and moving base synchronously moves rightward on the access reciprocating movement limiting track to complete the action of extracting the cryogenic box on the right side.

[0010] Furthermore, the elastic extrusion plug-in clamping mechanism comprises a clamping block, a connecting block, a clamping block base, a first control block, a first elastic telescopic rod, a pulling block and a first fixed rod, the left portion of the L-shaped clamping movable base is provided with a first L-shaped mounting groove in the horizontal direction, the bottom of the first L-shaped mounting groove is provided with a first elastic telescopic rod mounting countersunk hole, the first elastic telescopic rod is installed in the first elastic telescopic rod mounting countersunk hole, the first control block is installed in the first L-shaped mounting groove and on the outside of the first elastic telescopic rod, the first control block is in the shape of a U-shaped control block, the opening direction of the U-shaped control block is placed horizontally outward, the clamping block is installed on the upper left portion of the L-shaped clamping movable base, the clamping block is in the shape of an L-shaped clamping block, and a pulling block embedded mounting structure is opened in the middle portion of the L-shaped clamping block in the vertical direction, the clamping block base is installed at the bottom of the left end of the L-shaped clamping movable base, and the clamping block base is provided with a first fixed rod mounting countersunk hole, and the position of the first fixed rod mounting countersunk hole corresponds to the first fixed rod.

[0011] The lever is secured to the upper and lower edges of the L-shaped support frame, and the lever is secured to the upper and lower edges of the L-shaped support frame.

[0012] Furthermore, a first fixing rod clamping ring is provided at the lower part of the first fixing rod mounting blind hole, and a first fixing rod clamping platform is provided at the top of the first fixing rod, and the first fixing rod clamping ring is used to limit the first fixing rod clamping platform from detaching from the first fixing rod mounting blind hole.

[0013] When the elastic extrusion plug-type clamping mechanism moves leftward and contacts the cryobox placed on the cryo rack, the lower left part of the first control block will move rightward after being extruded by the cryobox, and the first elastic telescopic rod will move toward the bottom of the first elastic telescopic rod installation counterbore after being extruded. At this time, the lower part of the pulling block loses the limit of the upper part of the U-shaped control block, and the first fixed rod will fall freely under its own gravity until it enters and passes through the first fixed rod through hole on the cryobox and is embedded in the first fixed rod installation counterbore on the clamping block base, thus completing the clamping and fixing action of the cryobox on the left side.

[0014] Furthermore, the elastic hydraulic extraction rod-type storage mechanism includes a second control block, an L-shaped hydraulic block, a hydraulic push rod, an inverted U-shaped hydraulic cavity, a second fixed rod, and a second elastic telescopic rod. A second L-shaped installation groove is opened horizontally in the left part of the L-shaped storage moving base. A second elastic telescopic rod installation counterbore is provided at the bottom of the second L-shaped installation groove. The second control block is installed outside the second elastic telescopic rod in the second L-shaped installation groove. The outer shape of the second control block is an L-shaped control block. A second elastic telescopic rod installation groove is opened in the middle of the right end face of the L-shaped control block. The hydraulic push rod is installed on the upper part of the right end face of the L-shaped control block. The second elastic telescopic rod is installed between the second elastic telescopic rod installation groove and the second elastic telescopic rod installation counterbore. The L-shaped hydraulic block is installed on the upper right part of the L-shaped storage moving base. An inverted U-shaped hydraulic cavity is opened in the middle of the right part of the L-shaped hydraulic block in the vertical direction. A hydraulic push rod channel is opened in the left part of the L-shaped hydraulic block in the horizontal direction. The position of the hydraulic push rod corresponds to that of the hydraulic push rod channel. The inverted U-shaped hydraulic cavity includes a left hydraulic cavity and a right hydraulic cavity. A number of independent second fixed rod cavities are arranged in parallel in the right hydraulic cavity. The second fixed rod is installed in the second fixed rod cavity.

[0015] Furthermore, a hydraulic block base is installed at the bottom right end of the L-shaped storage moving base. A second fixed rod installation counterbore is opened on the hydraulic block base. The position of the second fixed rod installation counterbore corresponds to that of the second fixed rod.

[0016] Furthermore, a second control block limit block is installed on the second track groove on the right side of the extraction and placement assembly.

[0017] When the elastic hydraulic drawbar type storage mechanism moves to the extreme right position, the second control block will be blocked by the limit block and stop moving. The L-shaped storage moving base continues to move to the right. At this time, the hydraulic push rod is withdrawn from the hydraulic push rod channel of the inverted U-shaped hydraulic chamber, and then driven by the hydraulic pressure of the inverted U-shaped hydraulic chamber, the second fixed rod moves upward successively along the second fixed rod mounting counterbore on the hydraulic block base, the fixed rod through hole of the cryopreservation box, and the right hydraulic chamber until it completely enters the right hydraulic chamber. At this time, the L-shaped storage moving base continues to move to the right until the cryopreservation box is placed on the right cryopreservation rack.

[0018] Further, the rotary telescopic rod assembly includes a fixed disk, a nested telescopic sleeve rod, and a first driving motor. The nested telescopic sleeve rod includes an inner telescopic rod and an outer sleeve rod. The outer wall of the inner telescopic rod is sleeved on the inner wall of the outer sleeve rod. The fixed disk is installed at the top of the inner telescopic rod. An expansion control device is installed above the fixed disk. The expansion control device is used to control the expansion and contraction action of the inner telescopic rod. The fixed disk is connected to the electric linear guide rail assembly, and the first driving motor is connected to the outer sleeve rod.

[0019] The present invention adjusts the synchronous access equipment for the cryopreservation box to a position suitable for accessing the cryopreservation box through the horizontal movement of the electric linear guide rail assembly, the up and down expansion and contraction action of the inner telescopic rod in the rotary telescopic rod assembly, and the rotation action of the first driving motor driving the outer sleeve rod and driving the synchronous access device to rotate.

[0020] After the clamping component and the extraction and placement component synchronously complete the clamping of the left cryopreservation box and the placement of the right cryopreservation box, taking the gear synchronous drive component as an example, the present invention reversely drives the driving gear to rotate through the second driving motor of the gear synchronous drive component, and then the driving gear reversely drives the first driven rack on the L-shaped clamping moving base and the second driven rack on the L-shaped placement moving base at the same time, so that the elastic extrusion plug rod type clamping mechanism installed on the L-shaped clamping moving base moves to the right to complete the action of taking out the cryopreservation box from the left cryopreservation rack, while the elastic hydraulic extraction rod type placement mechanism installed on the L-shaped placement moving base synchronously moves to the left to complete the action of placing the cryopreservation box on the right cryopreservation rack. Subsequently, the inner telescopic rod of the nested telescopic sleeve rod contracts upward, carrying the cryopreservation box on the clamping component upward. Then, after the outer sleeve rod is driven by the first driving motor to rotate to a suitable angle, height and position, the staff completes the disassembly action of the clamped cryopreservation box. The staff holds the handle of the pulling block and pulls it upward. When the pulling block is pulled out of the clamping block, the first fixing rod is also pulled out of the fixing rod through hole of the cryopreservation box, thus completing the disassembly action of the cryopreservation box. When the cryopreservation box is removed, the first control block automatically extends to the left and resets due to the elimination of the extrusion force. At the same time, the upper part of the U-shaped control block moves synchronously to directly below the pulling block. At this time, the staff inserts the pulling block into the clamping block. Due to the blocking and limiting of the upper part of the U-shaped control block, the first fixing rod contracts into the pulling block. At the same time, the staff can place the cryopreservation box to be stored in the cold storage on the extraction and placement component, and then move the clamping component and the extraction and placement component to the initial working position. After that, the above synchronous access actions can be repeated in a cycle, and the actions of accessing and storing the cryopreservation boxes on both sides can be synchronously completed at the same time. The technological process of synchronously accessing and storing the cryopreservation boxes on both sides of the present invention is simple and easy to implement, greatly improving the working efficiency of accessing and storing the cryopreservation boxes on both sides, so it has good use value and economic value.

[0021] Similarly, when the sprocket synchronous drive component is adopted, the present invention reversely drives the driving sprocket to rotate through the second driving motor of the sprocket synchronous drive component, and then the driving sprocket reversely drives the first driven chain on the L-shaped clamping moving base and the second driven chain on the L-shaped placement moving base at the same time, so that the elastic extrusion plug rod type clamping mechanism installed on the L-shaped clamping moving base moves to the right to complete the action of taking out and clamping the cryopreservation box from the left cryopreservation rack, while the elastic hydraulic extraction rod type placement mechanism installed on the L-shaped placement moving base synchronously moves to the left to complete the action of placing the cryopreservation box on the right cryopreservation rack. Description of the Drawings

[0022] Figure 1 It is a three-dimensional view of the working scenario of a preferred embodiment of the present invention.

[0023] Figure 2 It is a three-dimensional view of a preferred embodiment of the present invention.

[0024] Figure 3 is Figure 2 a perspective view of one side of the clamping device in

[0025] Figure 4 is Figure 3 an exploded view of

[0026] Figure 5 is Figure 2 a perspective view of the other side of the clamping device in

[0027] Figure 6 is Figure 3 a perspective view of the storage device in with a cryogenic storage box and cryogenic storage tubes installed on it.

[0028] Figure 7 is Figure 3 a perspective view of the clamping device in with a cryogenic storage box and cryogenic storage tubes installed on it.

[0029] Figure 8 is Figure 3 a front perspective view of

[0030] Figure 9 is Figure 8 a front perspective view of some structural components of

[0031] Figure 10 is Figure 3 a front view of

[0032] Figure 11 is Figure 10 a sectional view taken along the A - A direction of

[0033] Figure 12 is Figure 3 a left view of , which shows the structural schematic diagram when the first fixed rod does not extend from inside the pulling block.

[0034] Figure 13 is Figure 12 a sectional view taken along the B - B direction of

[0035] Figure 14 is Figure 13 a partial enlarged view of area C of

[0036] Figure 15 is Figure 13 a partial enlarged view of area D of

[0037] Figure 16 is Figure 3 a left view of , which shows the structural schematic diagram when the first fixed rod extends from inside the pulling block.

[0038] Figure 17 is Figure 16 a sectional view taken along the F - F direction of

[0039] Figure 18 is Figure 17 a partial enlarged view of the G region of

[0040] Figure 19 is Figure 17 a partial enlarged view of the H region of

[0041] Figure 20 is Figure 14 a three-dimensional view of the pulling block and the first fixing rod in

[0042] Figure 21 is Figure 20 the left view of

[0043] Figure 22 is Figure 21 a sectional view taken along the E-E direction of , which shows a schematic structural view of the first fixing rod inside the pulling block.

[0044] Figure 23 is Figure 21 a sectional view taken along the E-E direction of , which shows a schematic structural view of the first fixing rod extending out of the pulling block.

[0045] Figure 24 is Figure 1 a three-dimensional view of the cryopreservation rack in

[0046] Figure 25 is Figure 1 a three-dimensional view of the cryopreservation box in

[0047] Explanation of reference numerals:

[0048] 1 - fixing plate; 2 - nested telescopic rod; 21 - first driving motor; 3 - synchronous access device; 31 - driving gear; 311 - second driving motor; 32 - access reciprocating movement limiting track; 321 - second control block limiting block; 33 - clamping assembly; 331 - first driven rack; 332 - clamping block; 333 - connecting block; 334 - clamping block base; 335 - first control block; 336 - first elastic telescopic rod; 337 - pulling block; 338 - first fixing rod; 34 - pumping and discharging assembly; 341 - second control block; 342 - hydraulic push rod; 343 - inverted U-shaped hydraulic cavity; 344 - second fixing rod; 345 - second elastic telescopic rod; 4 - cryopreservation rack; 41 - partition; 5 - cryopreservation box; 51 - fixing rod through hole; 6 - cryopreservation tube. Detailed implementation manners

[0049] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention is given with reference to the accompanying drawings.

[0050] In the description of the present invention, it should be noted that the term nouns in each embodiment, such as "upper", "lower", "front", "rear", "left", "right", etc., which indicate directions, are only used to simplify the description of the positional relationship based on the drawings in the specification, and do not represent that the indicated elements and devices, etc. must be operated according to the specific directions, limited operations, methods, and structures described in the specification. Such directional nouns do not constitute a limitation to the present invention.

[0051] A cryopreservation box synchronous access device provided by an embodiment of the present invention, as Figures 1 - 7 shown, includes an electric linear guide rail assembly, a rotating telescopic rod assembly, and a synchronous access device 3 arranged in sequence from top to bottom. The top of the rotating telescopic rod assembly is connected to the electric linear guide rail assembly, and the bottom is connected to the synchronous access device 3. The synchronous access device 3 includes an access reciprocating movement limiting track 32, a synchronous drive assembly, a clamping component 33, and a pumping and discharging component 34. The access reciprocating movement limiting track 32 includes a first track groove and a second track groove. The first track groove and the second track groove are arranged horizontally and parallel to each other. The synchronous drive assembly is installed in the middle between the first track groove and the second track groove, and the clamping component 33 and the pumping and discharging component 34 are respectively installed on the left and right parts. The front and rear sides of the synchronous drive assembly are respectively connected to the left part of the pumping and discharging component 34 and the right part of the clamping component 33.

[0052] In this embodiment, by setting the synchronous access device 3 including the access reciprocating movement limiting track 32, the synchronous drive assembly, the clamping component 33, and the pumping and discharging component 34, the technical problem that the existing robotic arm cannot synchronously access cryopreservation boxes 5 arranged on both sides and has a low access efficiency is solved. It can synchronously complete the clamping action of the cryopreservation boxes 5 arranged on both sides and the pumping and discharging action of the cryopreservation boxes 5 at the same time, greatly improving the access efficiency of the cryopreservation boxes 5. In the present invention, the synchronous drive assembly simultaneously drives the clamping component 33 and the pumping and discharging component 34 to synchronously move to the left and right sides on the access reciprocating movement limiting track 32, so that when the clamping component 33 moves to the left to complete the clamping action of the cryopreservation box 5 on the left side, the pumping and discharging component 34 can synchronously move to the right to complete the pumping and discharging action of the cryopreservation box 5 on the right side.

[0053] Optionally, as Figure 4 、 Figures 8 - 14 、 Figures 16 - 18As shown, the synchronous drive assembly adopts a gear synchronous drive assembly. The gear synchronous drive assembly includes a second drive motor 311 and a driving gear 31. The output end of the second drive motor 311 is equipped with the driving gear 31. The clamping assembly 33 includes an L-shaped clamping and moving base. A first driven rack 331 is provided on the inner side of the right part of the L-shaped clamping and moving base and meshes with the rear end of the driving gear 31. The right rear part of the L-shaped clamping and moving base is placed in the first track groove, and the left front part of the L-shaped clamping and moving base is placed in the second track groove. An elastic extrusion plug-type clamping mechanism is installed on the left part of the L-shaped clamping and moving base. The extraction and placement assembly 34 includes an L-shaped storage and moving base. A second driven rack is provided on the inner side of the left part of the L-shaped storage and moving base and meshes with the front end of the driving gear 31. The left front part of the L-shaped storage and moving base is placed in the second track groove, and the right rear part of the L-shaped storage and moving base is placed in the first track groove. An elastic hydraulic extraction rod-type storage mechanism is installed on the right part of the L-shaped storage and moving base.

[0054] In this embodiment, by providing a synchronous access device 3 including an access reciprocating movement limit track 32, a gear synchronous drive assembly, a clamping assembly 33 with an elastic extrusion plug-type clamping mechanism, and an extraction and placement assembly 34 with an elastic hydraulic extraction rod-type storage mechanism, the technical problem that the existing robotic arm cannot synchronously access and store the cryogenic storage boxes 5 on both sides and has a low access efficiency is solved. It can achieve synchronously completing the clamping action of the cryogenic storage boxes 5 on both sides and the extraction and placement action of the cryogenic storage boxes 5 at the same time, greatly improving the access efficiency of the cryogenic storage boxes 5. In the present invention, the second drive motor 311 of the gear synchronous drive assembly drives the driving gear 31 to rotate, and then the driving gear 31 simultaneously drives the first driven rack 331 on the L-shaped clamping and moving base and the second driven rack on the L-shaped storage and moving base, so that the elastic extrusion plug-type clamping mechanism installed on the L-shaped clamping and moving base moves leftward on the access reciprocating movement limit track to complete the clamping action of the cryogenic storage box 5 on the left side, while the elastic hydraulic extraction rod-type storage mechanism installed on the L-shaped storage and moving base synchronously moves rightward on the access reciprocating movement limit track to complete the extraction action of the cryogenic storage box 5 on the right side.

[0055] Optionally, refer to Figure 4 、 Figures 8 - 14 、 Figures 16 - 18As shown, the synchronous drive assembly adopts a sprocket synchronous drive assembly. The sprocket synchronous drive assembly includes a second drive motor 311 and a driving sprocket. The output end of the second drive motor 311 is equipped with the driving sprocket. The clamping assembly 33 includes an L-shaped clamping and moving base. A first driven chain is provided on the inner side of the right part of the L-shaped clamping and moving base and meshes with the rear end of the driving sprocket. The right rear part of the L-shaped clamping and moving base is placed in the first track groove, and the left front part of the L-shaped clamping and moving base is placed in the second track groove. An elastic extrusion plug-type clamping mechanism is installed on the left part of the L-shaped clamping and moving base. The extraction and placement assembly 34 includes an L-shaped storage and moving base. A second driven chain is provided on the inner side of the left part of the L-shaped storage and moving base and meshes with the front end of the driving sprocket. The left front part of the L-shaped storage and moving base is placed in the second track groove, and the right rear part of the L-shaped storage and moving base is placed in the first track groove. An elastic hydraulic extraction rod-type storage mechanism is installed on the right part of the L-shaped storage and moving base.

[0056] In this embodiment, by providing the synchronous access device 3 including the access reciprocating movement limit track 32, the sprocket synchronous drive assembly, the clamping assembly 33 with an elastic extrusion plug-type clamping mechanism, and the extraction and placement assembly 34 with an elastic hydraulic extraction rod-type storage mechanism, the technical problem that the existing robotic arm cannot synchronously access and store the cryogenic storage box 5 and has a low access and storage efficiency is solved. It can synchronously complete the clamping action of the cryogenic storage boxes 5 on both sides and the extraction and placement action of the cryogenic storage box 5 at the same time, greatly improving the access and storage efficiency of the cryogenic storage box 5. In the present invention, the second drive motor 311 of the sprocket synchronous drive assembly drives the driving sprocket to rotate, and then the driving sprocket simultaneously drives the first driven chain on the L-shaped clamping and moving base and the second driven chain on the L-shaped storage and moving base, so that the elastic extrusion plug-type clamping mechanism installed on the L-shaped clamping and moving base moves leftward on the access reciprocating movement limit track to complete the clamping action of the cryogenic storage box 5 on the left side, while the elastic hydraulic extraction rod-type storage mechanism installed on the L-shaped storage and moving base synchronously moves rightward on the access reciprocating movement limit track to complete the extraction action of the cryogenic storage box 5 on the right side.

[0057] Optionally, as Figure 4 、 Figure 8 、 Figures 10 - 14 、 Figures 16 - 18 、 Figures 20 - 23As shown, the elastic extrusion plug - type clamping mechanism includes a clamping block 332, a connecting block 333, a clamping block base 334, a first control block 335, a first elastic telescopic rod 336, a pulling block 337, and a first fixing rod 338. A first L - shaped installation groove is horizontally opened in the left part of the L - shaped clamping and moving base. A first elastic telescopic rod installation counterbore is provided at the bottom of the first L - shaped installation groove. The first elastic telescopic rod 336 is installed in the first elastic telescopic rod installation counterbore. The first control block 335 is installed outside the first elastic telescopic rod 336 in the first L - shaped installation groove. The outer shape of the first control block 335 is a U - shaped control block, and the opening direction of the U - shaped control block is horizontally outward. The clamping block 332 is installed at the upper left part of the L - shaped clamping and moving base. The outer shape of the clamping block 332 is an L - shaped clamping block. A pulling - block embedded installation structure is opened in the middle of the L - shaped clamping block in the vertical direction. The clamping block base 334 is installed at the bottom left end of the L - shaped clamping and moving base. A first fixing rod installation counterbore is opened on the clamping block base 334, and the position of the first fixing rod installation counterbore corresponds to that of the first fixing rod 338.

[0058] Optionally, as Figure 4 , Figure 8 , Figures 10 - 14 , Figures 16 - 18 , Figures 20 - 23 shown, the pulling - block embedded installation structure includes a cavity penetrating the upper and lower end faces of the L - shaped clamping block. A pulling - block support step is provided on the inner wall of the middle and lower part of the cavity. The middle opening of the pulling - block support step is used as the falling channel for the first fixing rod 338. A first control - block embedded installation groove is opened in the middle of the L - shaped clamping block in the horizontal direction. The cavity and the first control - block embedded installation groove are arranged perpendicular to each other and cross - wise. The upper part of the U - shaped control block is embedded and installed in the first control - block embedded installation groove. The lower right part of the U - shaped control block is in contact with the left end of the first elastic telescopic rod 336. The connecting block 333 is installed at the upper right part of the L - shaped clamping block, the upper right of the U - shaped control block, and the left top of the L - shaped clamping and moving base. The outer shape of the pulling block 337 is a flat - square hexahedron. The flat - square hexahedron adopts an upper - and - lower split structure. A handle is installed in the middle of the top surface of the flat - square hexahedron. A number of first fixing - rod installation blind holes are opened vertically from bottom to top in the flat - square hexahedron, and the first fixing rod 338 is installed in the first fixing - rod installation blind holes.

[0059] Optionally, as Figure 4 , Figure 8 , Figures 10 - 14 , Figures 16 - 18 , Figures 20 - 23As shown, a first fixing rod snap ring is provided at the lower part of the first fixing rod mounting blind hole, and a first fixing rod snap table is provided at the top of the first fixing rod 338. The first fixing rod snap ring is used to prevent the first fixing rod snap table from detaching from the first fixing rod mounting blind hole.

[0060] In this embodiment, when the elastic extrusion plug rod type clamping mechanism moves leftward and contacts the cryopreservation box 5 placed on the cryopreservation rack 4, the lower left part of the first control block 335 will move rightward after being squeezed by the cryopreservation box 5, and the first elastic telescopic rod 336 will be squeezed and move towards the bottom of the first elastic telescopic rod mounting counterbore. At this time, the lower part of the pulling block 337 loses the limit of the upper part of the U-shaped control block. The first fixing rod 338 makes a free fall under its own gravity until it enters and passes through the first fixing rod through hole 51 on the cryopreservation box 5 and is embedded in the first fixing rod mounting counterbore on the clamping block base 334, thus completing the clamping and fixing action of the cryopreservation box 5 on the left side.

[0061] Optionally, as Figure 13 , Figure 15 , Figure 17 , Figure 19 As shown, the elastic hydraulic extraction rod type storage mechanism includes a second control block 341, an L-shaped hydraulic block, a hydraulic push rod 342, an inverted U-shaped hydraulic cavity 343, a second fixing rod 344, and a second elastic telescopic rod 345. A second L-shaped installation groove is opened horizontally at the left part of the L-shaped storage moving base. A second elastic telescopic rod mounting counterbore is provided at the bottom of the second L-shaped installation groove. The second control block 341 is installed outside the second elastic telescopic rod 345 in the second L-shaped installation groove. The outer shape of the second control block 341 is an L-shaped control block. A second elastic telescopic rod installation groove is opened in the middle of the right end face of the L-shaped control block. The hydraulic push rod 342 is installed on the upper part of the right end face of the L-shaped control block. The second elastic telescopic rod 345 is installed between the second elastic telescopic rod installation groove and the second elastic telescopic rod mounting counterbore. The L-shaped hydraulic block is installed at the upper right part of the L-shaped storage moving base. The L-shaped hydraulic block has an inverted U-shaped hydraulic cavity 343 opened in the middle of the right part in the vertical direction. The L-shaped hydraulic block has a hydraulic push rod channel opened in the left part in the horizontal direction. The position of the hydraulic push rod 342 corresponds to the hydraulic push rod channel. The inverted U-shaped hydraulic cavity 343 includes a left hydraulic cavity and a right hydraulic cavity. A number of independent second fixing rod cavities are arranged in parallel in the right hydraulic cavity. The second fixing rod 344 is installed in the second fixing rod cavity.

[0062] Optionally, as Figure 13 , Figure 15 , Figure 17 , Figure 19As shown, a hydraulic block base is installed at the bottom right end of the L-shaped storage moving base. A second fixed rod installation counterbore is provided on the hydraulic block base, and the position of the second fixed rod installation counterbore corresponds to the second fixed rod 344.

[0063] Optionally, as Figure 4 , Figure 9 , Figure 11 , Figure 15 , Figure 17 , Figure 19 shown, a second control block limit block 321 is installed on the second track groove on the right side of the extraction assembly 34.

[0064] In this embodiment, when the elastic hydraulic rod type storage mechanism moves to the extreme right position, the second control block 341 will be blocked by the limit block 321 and stop moving. The L-shaped storage moving base continues to move to the right. At this time, the hydraulic push rod 342 is withdrawn from the hydraulic push rod channel of the inverted U-shaped hydraulic cavity 343, and then driven by the hydraulic pressure of the inverted U-shaped hydraulic cavity 343, the second fixed rod 344 moves upward along the second fixed rod installation counterbore on the hydraulic block base, the fixed rod through hole 51 of the cryopreservation box 5 and the right hydraulic cavity in sequence until it completely enters the right hydraulic cavity. At this time, the L-shaped storage moving base continues to move to the right until the cryopreservation box 5 is placed on the right cryopreservation rack 4.

[0065] Optionally, as Figure 1 , Figure 2 shown, the rotary telescopic rod assembly includes a fixed disk 1, a nested telescopic sleeve rod 2 and a first driving motor 21. The nested telescopic sleeve rod 2 includes an inner telescopic rod and an outer sleeve rod. The outer wall of the inner telescopic rod is sleeved on the inner wall of the outer sleeve rod. The fixed disk 1 is installed at the top of the inner telescopic rod. A telescopic control device is installed above the fixed disk 1. The telescopic control device is used to control the telescopic action of the inner telescopic rod. The fixed disk 1 is connected to the electric linear guide rail assembly, and the first driving motor 21 is connected to the outer sleeve rod.

[0066] In this embodiment, through the horizontal movement of the electric linear guide rail assembly, the up and down telescopic action of the inner telescopic rod in the rotary telescopic rod assembly, and the rotation action of the first driving motor 21 driving the outer sleeve rod to rotate and driving the synchronous access device 3 to rotate, the cryopreservation box synchronous access equipment is adjusted to a position suitable for accessing the cryopreservation box 5.

[0067] In this embodiment, when the clamping component 33 and the pumping and discharging component 34 synchronously complete the clamping of the left cryobox 5 and the storage of the right cryobox 5, taking the gear synchronous drive component as an example, the present invention reversely drives the driving gear 31 by the second driving motor 311 of the gear synchronous drive component, and then the driving gear 31 simultaneously and reversely drives the first driven rack 331 on the L-shaped clamping moving base and the second driven rack on the L-shaped storage moving base, so that the elastic extrusion plug-type clamping mechanism installed on the L-shaped clamping moving base moves to the right to complete the action of taking out the cryobox 5 from the left cryopreservation rack 4, while the elastic hydraulic pumping rod-type storage mechanism installed on the L-shaped storage moving base synchronously moves to the left to complete the action of storing the cryobox 5 on the right cryopreservation rack 4. Subsequently, the inner telescopic rod of the nested telescopic sleeve rod 2 contracts upward, carrying the cryobox 5 on the clamping component upward. Then, after the outer sleeve rod is rotated to a suitable angle, height and position by the first driving motor 21, the taken-out cryobox 5 is disassembled by the staff. The staff holds the handle of the pulling block 337 and pulls it upward. While pulling the pulling block 337 out of the clamping block 332, the first fixing rod 338 is also pulled out of the fixing rod through hole 51 of the cryobox 5, thus completing the disassembly action of the cryobox 5. When the cryobox 5 is removed, the first control block 335 automatically extends to the left and resets due to the elimination of the extrusion force. At the same time, the upper part of the U-shaped control block moves synchronously to directly below the pulling block 337. At this time, the staff inserts the pulling block 337 into the clamping block 332. The first fixing rod 338 is blocked and limited by the upper part of the U-shaped control block, so that the first fixing rod 338 contracts into the pulling block 337. At the same time, the staff can place the cryobox 5 to be stored in the cold storage on the pumping and discharging component, and then move the clamping component 33 and the pumping and discharging component 34 to the initial working position. After that, the above-mentioned synchronous access actions can be repeated cyclically, and the actions of synchronously accessing and storing the cryoboxes 5 on both sides can be completed at the same time. The process flow of the present invention for synchronously accessing and storing the cryoboxes 5 on both sides is simple and easy to implement, and the working efficiency of accessing and storing the cryoboxes 5 is greatly improved, having good popularization and application value.

[0068] Similarly, in this embodiment, when the sprocket synchronous drive component is adopted, the present invention reversely drives the driving sprocket by the second driving motor 311 of the sprocket synchronous drive component, and then the driving sprocket simultaneously and reversely drives the first driven chain on the L-shaped clamping moving base and the second driven chain on the L-shaped storage moving base, so that the elastic extrusion plug-type clamping mechanism installed on the L-shaped clamping moving base moves to the right to complete the action of taking out the cryobox 5 from the left cryopreservation rack 4, while the elastic hydraulic pumping rod-type storage mechanism installed on the L-shaped storage moving base synchronously moves to the left to complete the action of storing the cryobox 5 on the right cryopreservation rack 4.

[0069] Although the present invention is disclosed above with preferred embodiments, the present invention is not limited thereto. Those skilled in the art can make various permutations and combinations of the above preferred embodiments without departing from the spirit and scope of the present invention and form complete technical solutions. The protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A cryopreservation box synchronous access device, characterized in that, It includes an electric linear guide rail assembly, a rotary telescopic rod assembly, and a synchronous access device (3) arranged successively from top to bottom. The top of the rotary telescopic rod assembly is connected to the electric linear guide rail assembly, and the bottom is connected to the synchronous access device (3). The synchronous access device (3) includes an access reciprocating movement limiting track (32), a synchronous drive assembly, a clamping assembly (33), and a pumping and discharging assembly (34). The access reciprocating movement limiting track (32) includes a first track groove and a second track groove. The first track groove and the second track groove are arranged horizontally and parallel to each other and face each other. The synchronous drive assembly is installed in the middle between the first track groove and the second track groove, and the clamping assembly (33) and the pumping and discharging assembly (34) are respectively installed on the left and right parts. The front and rear sides of the synchronous drive assembly are respectively connected to the left part of the pumping and discharging assembly (34) and the right part of the clamping assembly (33); the synchronous drive assembly adopts a gear synchronous drive assembly. The gear synchronous drive assembly includes a second drive motor (311) and a driving gear (31). The output end of the second drive motor (311) is equipped with the driving gear (31). The clamping assembly (33) includes an L-shaped clamping moving base. A first driven rack (331) is provided on the inner side of the right part of the L-shaped clamping moving base and meshes with the rear end of the driving gear (31). The right rear part of the L-shaped clamping moving base is placed in the first track groove, and the left front part of the L-shaped clamping moving base is placed in the second track groove. An elastic extrusion plug-type clamping mechanism is installed on the left part of the L-shaped clamping moving base. The pumping and discharging assembly (34) includes an L-shaped storage moving base. A second driven rack is provided on the inner side of the left part of the L-shaped storage moving base and meshes with the front end of the driving gear (31). The left front part of the L-shaped storage moving base is placed in the second track groove, and the right rear part of the L-shaped storage moving base is placed in the first track groove. An elastic hydraulic pumping rod-type storage mechanism is installed on the right part of the L-shaped storage moving base;The elastic extrusion plug-type clamping mechanism includes a clamping block (332), a connecting block (333), a clamping block base (334), a first control block (335), a first elastic telescopic rod (336), a pulling block (337) and a first fixing rod (338). A first L-shaped installation groove is formed horizontally in the left part of the L-shaped clamping and moving base. A first elastic telescopic rod installation counterbore is provided at the bottom of the first L-shaped installation groove. The first elastic telescopic rod (336) is installed in the first elastic telescopic rod installation counterbore. The first control block (335) is installed outside the first elastic telescopic rod in the first L-shaped installation groove. The outer shape of the first control block (335) is a U-shaped control block, and the opening direction of the U-shaped control block is horizontally outward. The clamping block (332) is installed at the upper left part of the L-shaped clamping and moving base. The outer shape of the clamping block (332) is an L-shaped clamping block. A pulling block embedded installation structure is formed in the middle of the L-shaped clamping block in the vertical direction. The clamping block base (334) is installed at the bottom left end of the L-shaped clamping and moving base. A first fixing rod installation counterbore is formed in the clamping block base (334), and the position of the first fixing rod installation counterbore corresponds to the first fixing rod (338). When the elastic extrusion rod-type clamping mechanism moves to the left and contacts the freezing box (5) placed on the freezing rack (4), the lower left part of the first control block (335) is squeezed by the freezing box (5) and moves to the right, causing the first elastic telescopic rod (336) to move toward the bottom of the first elastic telescopic rod mounting countersunk hole after being squeezed. At this time, the lower part of the pulling block (337) loses the limit of the upper part of the U-shaped control block, and the first fixing rod (338) performs free fall motion under the action of its own gravity until it enters and passes through the first fixing rod through hole (51) on the freezing box (5) and then embeds into the first fixing rod mounting countersunk hole on the clamping block base (334), thereby completing the clamping and fixing action of the freezing box (5) located on the left.

2. The cryopreservation box synchronous access device according to claim 1, characterized in that, The pull block embedded installation structure includes a cavity that passes through the upper and lower end surfaces of the L-shaped clamping block, and a pull block support step is provided on the inner wall of the lower middle part of the cavity. The middle opening of the pull block support step is used as a falling channel for the first fixing rod (338). The L-shaped clamping block is provided with a first control block embedded installation groove in the middle in the horizontal direction. The cavity and the first control block embedded installation groove are arranged perpendicular to each other. The upper part of the U-shaped control block is embedded in the first control block embedded installation groove, and the lower right part of the U-shaped control block is connected to the first control block embedded installation groove. The left ends of the elastic telescopic rod (336) are in contact with each other, and the connecting block (333) is installed on the upper right part of the L-shaped clamping block, the upper right part of the U-shaped control block and the left top of the L-shaped clamping movable base. The pulling block (337) is in the shape of a flat square hexahedron. The flat square hexahedron adopts an upper and lower split structure. A handle is installed in the middle of the top surface of the flat square hexahedron. The flat square hexahedron is provided with a plurality of first fixing rod installation blind holes from bottom to top along the longitudinal direction, and the first fixing rod installation blind hole is installed with the first fixing rod (338).

3. The cryopreservation box synchronous access device according to claim 2, characterized in that, A first fixing rod clamping ring is provided at the lower part of the first fixing rod mounting blind hole, and a first fixing rod clamping platform is provided at the top of the first fixing rod (338). The first fixing rod clamping ring is used to limit the first fixing rod clamping platform from being separated from the first fixing rod mounting blind hole.

4. The cryopreservation box synchronous access device according to claim 1, characterized in that, The elastic hydraulic rod-pulling storage mechanism includes a second control block (341), an L-shaped hydraulic block, a hydraulic push rod (342), an inverted U-shaped hydraulic cavity (343), a second fixed rod (344), and a second elastic telescopic rod (345). A second L-shaped installation groove is horizontally formed in the left part of the L-shaped storage moving base. A second elastic telescopic rod installation counterbore is provided at the bottom of the second L-shaped installation groove. The second control block (341) is installed outside the second elastic telescopic rod (345) in the second L-shaped installation groove. The outer shape of the second control block (341) is an L-shaped control block. A second elastic telescopic rod installation groove is formed in the middle of the right end face of the L-shaped control block. The hydraulic push rod (342) is installed on the upper part of the right end face of the L-shaped control block. The second elastic telescopic rod (345) is installed between the second elastic telescopic rod installation groove and the second elastic telescopic rod installation counterbore. The L-shaped hydraulic block is installed on the upper right part of the L-shaped storage moving base. An inverted U-shaped hydraulic cavity (343) is vertically formed in the middle of the right part of the L-shaped hydraulic block. A hydraulic push rod channel is horizontally formed in the left part of the L-shaped hydraulic block. The position of the hydraulic push rod (342) corresponds to that of the hydraulic push rod channel. The inverted U-shaped hydraulic cavity (343) includes a left hydraulic cavity and a right hydraulic cavity. A plurality of independent second fixed rod cavities are arranged in parallel in the right hydraulic cavity. The second fixed rod (344) is installed in the second fixed rod cavity.

5. The cryopreservation box synchronous access device according to claim 4, characterized in that, A hydraulic block base is installed at the bottom of the right end of the L-shaped storage moving base. A second fixed rod installation counterbore is formed in the hydraulic block base. The position of the second fixed rod installation counterbore corresponds to that of the second fixed rod (344).

6. The cryopreservation box synchronous access device according to claim 4, characterized in that, A second control block limit block (321) is installed on the second track groove on the right side of the pumping and discharging assembly (34).

7. The cryopreservation box synchronous access device according to claim 1, characterized in that, The rotary telescopic rod assembly includes a fixed disk (1), a nested telescopic sleeve rod (2), and a first driving motor (21). The nested telescopic sleeve rod (2) includes an inner telescopic rod and an outer sleeve rod. The outer wall of the inner telescopic rod is sleeved on the inner wall of the outer sleeve rod. The fixed disk (1) is installed at the top of the inner telescopic rod. A telescopic control device is installed above the fixed disk (1). The telescopic control device is used to control the telescopic action of the inner telescopic rod. The fixed disk (1) is connected to the electric linear guide rail assembly. The first driving motor (21) is connected to the outer sleeve rod.

8. A cryopreservation box synchronous access device, characterized in that, It includes an electric linear guide rail assembly, a rotary telescopic rod assembly, and a synchronous access device (3) arranged in sequence from top to bottom. The top of the rotary telescopic rod assembly is connected to the electric linear guide rail assembly, and the bottom is connected to the synchronous access device (3). The synchronous access device (3) includes an access reciprocating movement limit track (32), a synchronous drive assembly, a clamping assembly (33), and a pumping and discharging assembly (34). The access reciprocating movement limit track (32) includes a first track groove and a second track groove. The first track groove and the second track groove are arranged horizontally and parallel to each other and face each other. The synchronous drive assembly is installed in the middle between the first track groove and the second track groove, and the clamping assembly (33) and the pumping and discharging assembly (34) are respectively installed on the left and right parts. The front and back sides of the synchronous drive assembly are respectively connected to the left part of the pumping and discharging assembly (34) and the right part of the clamping assembly (33); the synchronous drive assembly adopts a sprocket synchronous drive assembly. The sprocket synchronous drive assembly includes a second drive motor (311) and a driving sprocket. The output end of the second drive motor (311) is equipped with the driving sprocket. The clamping assembly (33) includes an L-shaped clamping moving base. A first driven chain is provided on the inner side of the right part of the L-shaped clamping moving base and meshes with the rear end of the driving sprocket. The right rear part of the L-shaped clamping moving base is placed in the first track groove, and the left front part of the L-shaped clamping moving base is placed in the second track groove. An elastic extrusion plug rod type clamping mechanism is installed on the left part of the L-shaped clamping moving base. The pumping and discharging assembly (34) includes an L-shaped storage moving base. A second driven chain is provided on the inner side of the left part of the L-shaped storage moving base and meshes with the front end of the driving sprocket. The left front part of the L-shaped storage moving base is placed in the second track groove, and the right rear part of the L-shaped storage moving base is placed in the first track groove. An elastic hydraulic extraction rod type storage mechanism is installed on the right part of the L-shaped storage moving base;The elastic extrusion plug-type clamping mechanism includes a clamping block (332), a connecting block (333), a clamping block base (334), a first control block (335), a first elastic telescopic rod (336), a pulling block (337) and a first fixing rod (338). A first L-shaped installation groove is horizontally formed in the left part of the L-shaped clamping and moving base. A first elastic telescopic rod installation counter bore is provided at the bottom of the first L-shaped installation groove. The first elastic telescopic rod (336) is installed in the first elastic telescopic rod installation counter bore. The first control block (335) is installed outside the first elastic telescopic rod in the first L-shaped installation groove. The outer shape of the first control block (335) is a U-shaped control block. The opening direction of the U-shaped control block is horizontally outward. The clamping block (332) is installed at the upper left part of the L-shaped clamping and moving base. The outer shape of the clamping block (332) is an L-shaped clamping block. A pulling block embedded installation structure is formed in the middle of the L-shaped clamping block in the vertical direction. The clamping block base (334) is installed at the bottom left end of the L-shaped clamping and moving base. A first fixing rod installation counter bore is formed in the clamping block base (334). The position of the first fixing rod installation counter bore corresponds to the first fixing rod (338); When the elastic extrusion plug-type clamping mechanism moves leftward and contacts the cryobox (5) placed on the cryopreservation rack (4), the lower left part of the first control block (335) will move rightward after being extruded by the cryobox (5), and the first elastic telescopic rod (336) will move toward the bottom of the first elastic telescopic rod installation counterbore after being extruded. At this time, the lower part of the pulling block (337) loses the limit of the upper part of the U-shaped control block, and the first fixing rod (338) makes a free fall under its own gravity until it enters and passes through the first fixing rod through hole (51) on the cryobox (5) and then is embedded in the first fixing rod installation counterbore on the clamping block base (334), thus completing the clamping and fixing action of the cryobox (5) on the left side.

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