Cover opening equipment

Abstract

The invention relates to the technical field of biomedical treatment, in particular to uncovering equipment. Specifically, the cover opening equipment comprises a shell, a cover opening device and a cover pushing device, the cover opening device comprises a mounting base body, a driving mechanism and a cover opening screwdriver head, the driving mechanism and the cover opening screwdriver head are mounted on the mounting base body, the cover opening screwdriver head protrudes out of an opening in the bottom end of the shell, and the driving mechanism drives the cover opening screwdriver head to rotate so as to open or close a cover of a cryopreservation tube. The cover opening equipment comprises a cover opening device and a cover pushing device, the cover pushing device can move relative to the cover opening device, and after the cover opening device executes cover closing operation, the cover pushing device can move downwards, so that the bottom end of the cover pushing device abuts against a tube cover of a cryopreservation tube, and a cover opening screwdriver bit is separated from the tube cover. The cover pushing device abuts against the tube cover of the cryopreservation tube to enable the cover opening screwdriver head to be separated from the tube cover, so that the cover withdrawing operation is conveniently completed, and the use experience of a user is improved.

Description

Technical Field

[0001] The present invention relates to the field of biomedical technologies, and particularly provides an open - cap device. Background Art

[0002] In the fields of bioscience laboratories and medical care, some important biological samples need to be stored in a sealed manner. To meet the reliability of biological preservation, test tubes with end caps are usually used for storage. Currently, the most commonly used biological storage container is a cryotube, also known as a biological preservation tube, which is used for the preservation and transfer of bacterial strains. Generally, magnetic beads are also placed in the cryotube for the adsorption and preservation of bacteria.

[0003] The tube cap of the cryotube serves to prevent sample leakage, prevent external contaminants from polluting the sample, and prevent sample volatilization. During experiments, it is often necessary to use detection and analysis equipment to detect and analyze the specimens in the cryotube. Before the sample enters the detection equipment, an open - cap operation is required. Currently, the main open - cap methods are manual open - cap and machine open - cap. Manual open - cap is very inefficient and has a risk of causing contamination. For current machine open - cap devices, an open - cap bit is inserted into the tube cap of the cryotube, and the open - cap bit is rotated to perform open - cap and close - cap operations. However, most of the existing open - cap bits and the tube caps of cryotubes are set to have an interference fit connection. After the open - cap operation, the open - cap bit can move with the tube cap of the cryotube to facilitate detection and analysis by researchers. After the detection and analysis are completed, the open - cap bit can also move with the tube cap of the cryotube above the cryotube to perform close - cap. However, when the open - cap bit moves upward after the close - cap is completed, due to the interference fit between the open - cap bit and the tube cap of the cryotube, it is very difficult for the open - cap bit to separate from the tube cap of the cryotube, which will cause the cryotube to shake and even break the cryotube.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve the above - mentioned technical problems, that is, to solve the problem that the open - cap bit of the existing open - cap device is not easily separated from the tube cap of the cryotube.

[0006] In a first aspect, the present invention provides an open - cap device, including a housing, an open - cap device and a push - cap device installed on the housing. The open - cap device includes a mounting base connected to the housing, a driving mechanism and an open - cap bit installed on the mounting base. An opening is provided at the bottom end of the housing, and the open - cap bit protrudes from the opening. The driving mechanism is used to drive the open - cap bit to rotate to perform an open - cap operation or a close - cap operation on the cryotube. The push - cap device can move relative to the housing in the vertical direction. After the open - cap device finishes the close - cap operation, the push - cap device can move downward so that the bottom end of the push - cap device presses against the tube cap of the cryotube, thereby separating the open - cap bit from the tube cap.

[0007] In the case of adopting the above technical solution, the present invention performs an opening or closing operation through an opening device. After the closing is completed, the push cover device is pressed against the tube cover of the cryogenic tube to separate the opening bit from the tube cover, so as to conveniently complete the cover removal operation. The operation is simple and convenient, improving the user experience.

[0008] In a preferred technical solution of the above opening device, the driving mechanism includes a driving component and a transmission component. The driving component is located above the installation base body. An accommodation cavity is provided in the installation base body. A first opening communicating with the top end of the accommodation cavity is provided at the top of the installation base body. A second opening communicating with the bottom end of the accommodation cavity is provided at the bottom of the installation base body. The transmission component is installed in the accommodation cavity. The top end of the transmission component extends out from the first opening and is fixedly connected to the driving component. The top end of the opening bit is inserted into the accommodation cavity from the second opening and is connected to the bottom end of the transmission component. The driving component can drive the transmission component to rotate to drive the opening bit to rotate.

[0009] In the case of adopting the above technical solution, the present invention sets the driving mechanism as a driving component and a transmission component, and drives the transmission component through the driving component to drive the opening bit to rotate for opening or closing operations. The structure is simple and the operation is convenient.

[0010] In a preferred technical solution of the above opening device, the transmission component includes a first transmission shaft, a second transmission shaft and a transmission gear set. The top end of the first transmission shaft extends out from the first opening and is fixedly connected to the driving component. The bottom end of the first transmission shaft is connected to the transmission gear set. The top end of the second transmission shaft is connected to the transmission gear set. The bottom end of the second transmission shaft is connected to the opening bit. The driving component can sequentially drive the first transmission shaft, the transmission gear set and the second transmission shaft to rotate to drive the opening bit to rotate.

[0011] In the case of adopting the above technical solution, the present invention drives the opening bit to rotate by setting the transmission component in a structural form in which the first transmission shaft drives the transmission gear set and the second transmission shaft. The structure is simple and convenient for installation and maintenance.

[0012] In a preferred technical solution of the above opening device, the number of the opening bits is multiple. The transmission gear set includes multiple driving gears arranged at intervals and multiple transmission gears arranged at intervals. Adjacent two of the driving gears are meshed and connected through one of the transmission gears. The bottom end of the first transmission shaft is connected to one of the multiple driving gears. The number of the second transmission shafts is multiple and is arranged in one-to-one correspondence with the driving gears and the opening bits.

[0013] In the case of adopting the above technical solution, the present invention arranges the transmission gear set in the structural form of a plurality of spaced driving gears and a plurality of spaced transmission gears, which can improve the transmission efficiency of the transmission gear assembly. By setting the number of the opening heads to be multiple, the working efficiency of the opening device is improved.

[0014] In the preferred technical solution of the above opening device, the opening head includes a head and a bushing assembly distributed along the vertical direction. The top end of the bushing assembly is connected to the second transmission shaft. The bushing assembly is located in the accommodating cavity. The head is located below the installation base body. The top end of the head extends into the accommodating cavity through the second opening and is fixedly connected to the bottom end of the bushing assembly. The second transmission shaft can drive the bushing assembly to rotate.

[0015] In the case of adopting the above technical solution, the present invention connects the second transmission shaft and the head through the bushing assembly, which can facilitate the disassembly and replacement of the head, so that the opening device can match the tube caps of different specifications of cryogenic storage tubes.

[0016] In the preferred technical solution of the above opening device, the installation base body includes a first installation base body and a second installation base body distributed up and down. The accommodating cavity includes a first accommodating cavity arranged in the first installation base body and a second accommodating cavity arranged in the second installation base body. The first opening is arranged in the first installation base body and communicates with the top end of the first accommodating cavity. The bottom end of the first accommodating cavity communicates with the top end of the second accommodating cavity. The second opening is arranged in the second installation base body and communicates with the bottom end of the second accommodating cavity. The transmission gear set is located in the first accommodating cavity. A part of the opening head is located in the second accommodating cavity. The opening device further includes a first elastic member installed in the second accommodating cavity. The first elastic member is sleeved on the second transmission shaft. The top end of the first elastic member abuts against or is connected to the top wall of the second accommodating cavity. The bottom end of the first elastic member abuts against or is connected to the opening head. The bushing assembly is provided with a through hole extending along the vertical direction. The bottom end of the second transmission shaft is inserted into the through hole. The bushing assembly can move vertically relative to the second transmission shaft. The bushing assembly is provided with a limiting structure. The limiting structure is located above the second opening. The limiting structure is set to prevent the bushing assembly from moving downward through the second opening.

[0017] In the case of adopting the above technical solution, the present invention sets the installation base body as the first installation base body and the second installation base body distributed up and down, with a simple structure, which is convenient for installation and maintenance. By setting the second transmission shaft to be able to drive the sleeve assembly to rotate, and the sleeve assembly can move vertically relative to the second transmission shaft, and a first elastic member is sleeved on the second transmission shaft, when the lid-opening device opens the lid and the bit presses against the tube lid, the first elastic member can be compressed, so that the bit can smoothly enter the tube lid by using the pressure of the first elastic member and is in interference connection with the tube lid.

[0018] In a preferred technical solution of the above lid-opening device, the sleeve assembly includes an upper sleeve and a lower sleeve. The top end of the upper sleeve is connected to the second transmission shaft, the bottom end of the lower sleeve is fixedly connected to the bit, the through hole is arranged on the upper sleeve, the limiting structure is arranged on the lower sleeve, a first tooth-shaped structure is arranged at the bottom end of the upper sleeve, a second tooth-shaped structure is arranged at the top end of the lower sleeve, and the first tooth-shaped structure meshes with the second tooth-shaped structure.

[0019] In the case of adopting the above technical solution, the present invention sets the sleeve assembly as the connected upper sleeve and lower sleeve, which is more convenient for installation and disassembly. By arranging a first tooth-shaped structure at the bottom end of the upper sleeve and a second tooth-shaped structure at the top end of the lower sleeve, and the first tooth-shaped structure meshes with the second tooth-shaped structure, when the lid-opening device closes the lid, after the tube lid of the cryopreservation tube is closed and the tube lid and the lower sleeve stop rotating, the upper sleeve can still rotate with the second transmission shaft and move upward, so as to compress the first elastic member, thereby offsetting the driving force of the driving mechanism and avoiding damage to the tube lid caused by excessive rotation of the tube lid.

[0020] In a preferred technical solution of the above lid-opening device, a handle extending in the vertical direction is arranged at the top of the outer shell. The lid-pushing device includes a pressing rod and a lid-pushing assembly arranged in the vertical direction. The pressing rod is located in the handle and the top end of the pressing rod extends outside the handle. The bottom end of the pressing rod is fixedly connected to the lid-pushing assembly. After the lid-opening device finishes the lid-closing operation, press the pressing rod to make the lid-pushing assembly move downward so that the bottom end of the lid-pushing assembly presses against the tube lid of the cryopreservation tube.

[0021] In the case of adopting the above technical solution, the present invention completes the lid-removing operation by pushing the pressing rod to make the lid-pushing assembly move downward and press against the tube lid of the cryopreservation tube, with simple and convenient operation and cost saving.

[0022] In the preferred technical solution of the above-mentioned lid-opening device, the lid-pushing assembly includes an upper lid-pushing member, a guide post, a lower lid-pushing member, and a second elastic member. The bottom end of the pressing rod is fixedly connected to the upper lid-pushing member. The upper lid-pushing member is located above the installation base body, and the lower lid-pushing member is located below the installation base body. The installation base body is provided with a guide hole adapted to the guide post. The guide post passes through the guide hole, and the top end and the bottom end of the guide post are respectively fixedly connected to the upper lid-pushing member and the lower lid-pushing member. The second elastic member is sleeved on the guide post. The top end of the second elastic member abuts against the bottom of the upper lid-pushing member, and the bottom end of the second elastic member abuts against the installation base body. The lower lid-pushing member is provided with a perforation corresponding to the lid-opening bit, and the lid-opening bit passes through the perforation.

[0023] In the case of adopting the above technical solution, by setting the lid-pushing assembly as an upper lid-pushing member, a guide post, a lower lid-pushing member, and a second elastic member, the present invention has a simple structure and a reasonable layout, and can also restore the lid-pushing assembly to the initial position through the second elastic member after the lid is pushed back.

[0024] In the preferred technical solution of the above-mentioned lid-opening device, the number of the guide posts is at least two and they are spaced apart along the horizontal direction; and / or an installation cavity is provided on the installation base body. The top end of the installation cavity is open, the bottom end of the installation cavity is communicated with the top end of the guide hole, the second elastic member is located in the installation cavity, and the bottom end of the second elastic member abuts against the bottom wall of the installation cavity.

[0025] In the case of adopting the above technical solution, by providing at least two guide posts, the structure of the lid-pushing assembly is made more stable, and by arranging the second elastic member in the installation cavity, the second elastic member is made more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. In the drawings:

[0027] Figure 1 is a schematic structural diagram of the lid-opening device of the present invention Figure 1 ;

[0028] Figure 2 is a schematic structural diagram of the lid-opening device of the present invention Figure 2 ;

[0029] Figure 3 is Figure 2 a cross-sectional view taken along line A-A in

[0030] Figure 4 is a partial structural schematic diagram of the lid-opening device of the present invention;

[0031] Figure 5 is an exploded view of a partial structure of the lid-opening device of the present invention;

[0032] Figure 6 is a schematic structural diagram of the lid-opening bit of the lid-opening device of the present invention;

[0033] Figure 7 is a schematic structural diagram of the first mounting base of the lid-opening device of the present invention.

[0034] List of reference numerals:

[0035] 1. Housing; 11. Opening; 12. Handle;

[0036] 2. Lid-opening device; 21. Mounting base; 22. Driving mechanism; 23. Lid-opening bit;

[0037] 211. First mounting base; 212. Second mounting base; 213. Guide hole; 214. Mounting cavity; 221. Driving member; 222. Coupling; 223. First transmission shaft; 224. Second transmission shaft; 225. Driving gear; 226. Transmission gear; 231. Bit; 232. Upper bushing; 233. Lower bushing;

[0038] 2111. First opening; 2112. First accommodating cavity; 2121. Second opening; 2122. Second accommodating cavity; 2321. Through hole; 2322. First tooth-shaped structure; 2331. Limiting structure; 2332. Second tooth-shaped structure;

[0039] 3. Push-lid device; 31. Pressure rod; 32. Upper push-lid member; 33. Guide post; 34. Lower push-lid member; 341. Perforation;

[0040] 41. First elastic member; 42. Second elastic member. Detailed implementation manners

[0041] The following describes the preferred implementation manners of the present invention with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0042] It should be noted that in the description of the present invention, the terms "inner", "outer", "upper", "lower", "top", "bottom", "front", "rear", "left", "right", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0043] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "arrangement", "connection", and "installation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Based on the problem pointed out in the background art that the opening head of the existing opening device is not easily separated from the tube cap of the cryogenic storage tube, the present invention provides an opening device, aiming to perform an opening operation or a closing operation through the opening device. After the closing operation is completed, the pushing device is pressed against the tube cap of the cryogenic storage tube to separate the opening head from the tube cap, so as to conveniently complete the operation of removing the cap. The operation is simple and convenient, improving the user experience.

[0045] Specifically, as Figures 1 to 5 shown, the opening device of the present invention includes a housing 1, an opening device 2 and a pushing device 3 installed on the housing 1. The opening device 2 includes a mounting base 21 connected to the housing 1, a driving mechanism 22 and an opening head 23 installed on the mounting base 21. An opening 11 is provided at the bottom end of the housing 1, and the opening head 23 protrudes from the opening 11. The driving mechanism 22 is used to drive the opening head 23 to rotate to perform an opening operation or a closing operation on the cryogenic storage tube. The pushing device 3 can move relative to the housing 1 in the vertical direction. After the opening device 2 completes the closing operation, the pushing device 3 can move downward so that the bottom end of the pushing device 3 presses against the tube cap of the cryogenic storage tube, thereby separating the opening head 23 from the tube cap.

[0046] Exemplarily, as Figures 1 to 5 shown, the present invention provides a hand-held opening device for a cryogenic storage tube. Compared with a fixed opening device, the opening device of the present invention is more flexible in use and has a wider application space. The housing 1 of the opening device of the present invention is arranged in the vertical direction. A handle 12 and an opening and closing switch button are provided at the top of the housing 1. The bottom of the housing 1 is the opening head 23 that protrudes from the opening 11 of the housing 1. By pressing the opening and closing switch button, an opening operation and a closing operation can be performed. The pushing device 3 can move relative to the housing 1 in the vertical direction. After the closing operation is completed, by making the pushing device 3 move downward, the bottom end of the pushing device 3 can protrude from the opening 11 and press against the tube cap of the cryogenic storage tube, thereby separating the opening head 23 from the tube cap. The operation is simple and convenient, improving the user experience.

[0047] It should be noted that the present invention does not impose any restrictions on the structural form of the driving mechanism 22. For example, those skilled in the art can set the driving mechanism 22 in a structural form where multiple driving motors directly drive the opening head 23 to rotate, or the driving mechanism 22 can also be set in a structural form where a driving motor drives a transmission shaft to drive the opening head 23 to rotate. Such flexible adjustments and changes do not deviate from the principle and scope of the present invention and should all be defined within the protection scope of the present invention.

[0048] Preferably, as Figures 3 to 5 shown, the driving mechanism 22 of the present invention includes a driving component and a transmission component. The driving component is located above the mounting base 21. A receiving cavity is provided in the mounting base 21. A first opening 2111 communicating with the top end of the receiving cavity is provided at the top of the mounting base 21, and a second opening 2121 communicating with the bottom end of the receiving cavity is provided at the bottom of the mounting base 21. The transmission component is installed in the receiving cavity. The top end of the transmission component extends out from the first opening 2111 and is fixedly connected to the driving component. The top end of the opening head 23 is inserted into the receiving cavity from the second opening 2121 and is connected to the bottom end of the transmission component. The driving component can drive the transmission component to rotate to drive the opening head 23 to rotate.

[0049] Exemplarily, as Figures 3 to 5 shown, the driving component of the present invention includes a driving member 221 and a coupling 222. The driving member 221 can be set as a reduction motor. The driving member 221 is located at the top inside the housing 1. The coupling 222 is arranged vertically below the driving member 221. The transmission component is installed in the receiving cavity. A first opening 2111 and a second opening 2121 communicating with the receiving cavity are respectively provided at the top and bottom of the mounting base 21. By providing the coupling 222, the vibration of the driving mechanism 22 can be effectively reduced, and the working efficiency of the driving mechanism 22 can be improved. By providing the transmission component, the driving force can be transmitted more effectively, and the opening efficiency can be improved.

[0050] It should be noted that the present invention does not impose any restrictions on the structural form of the transmission component. For example, those skilled in the art can set the transmission component in the form of a transmission shaft, or can also adopt the form of a transmission shaft + gear set, etc. Such adjustments and changes to the specific structural form of the transmission component do not deviate from the basic principle of the present invention and should all be defined within the protection scope of the present invention.

[0051] Preferably, as Figures 3 to 5As shown in the figure, the transmission assembly of the present invention includes a first transmission shaft 223, a second transmission shaft 224, and a transmission gear set. The top end of the first transmission shaft 223 extends out from the first opening 2111 and is fixedly connected to the drive assembly. The bottom end of the first transmission shaft 223 is connected to the transmission gear set. The top end of the second transmission shaft 224 is connected to the transmission gear set, and the bottom end of the second transmission shaft 224 is connected to the open cover bit 23. The drive assembly can drive the first transmission shaft 223, the transmission gear set, and the second transmission shaft 224 to rotate in sequence to drive the open cover bit 23 to rotate.

[0052] Exemplarily, as Figures 3 to 5 shown in the figure, the transmission gear set of the present invention is installed in the accommodation cavity. The top end and the bottom end of the first transmission shaft 223 are respectively connected to the coupling 222 and the transmission gear set. The top end and the bottom end of the second transmission shaft 224 are respectively connected to the transmission gear set and the open cover bit 23. The drive assembly can drive the first transmission shaft 223, the transmission gear set, and the second transmission shaft 224 to rotate in sequence, so as to drive the open cover bit 23 to rotate.

[0053] It should be noted that the present invention does not impose any restrictions on the structural form of the transmission gear set. For example, those skilled in the art can also set the transmission gear set in the form of a large gear + a small gear that mesh with each other, or can also set the transmission gear set in the form of a main gear + a transmission gear that mesh with each other, etc. Such adjustments and changes to the specific structural form of the transmission gear set do not deviate from the basic principle of the present invention and should all be limited within the protection scope of the present invention.

[0054] Preferably, as Figures 3 to 5 shown in the figure, the number of the open cover bits 23 of the present invention is multiple. The transmission gear set includes multiple driving gears 225 arranged at intervals and multiple transmission gears 226 arranged at intervals. Two adjacent driving gears 225 are meshed and connected through a transmission gear 226. The bottom end of the first transmission shaft 223 is connected to one of the multiple driving gears 225. The number of the second transmission shafts 224 is multiple and is arranged in one-to-one correspondence with the driving gears 225 and the open cover bits 23.

[0055] Exemplarily, as Figures 3 to 5 shown in the figure, the number of the driving gears 225 of the present invention is 8 arranged in a row, the number of the transmission gears 226 is 7 arranged in a row, and the transmission gears 226 are located in the front row of the driving gears 225. Two adjacent driving gears 225 are meshed and connected through a transmission gear 226. The bottom end of the first transmission shaft 223 is connected to the fourth driving gear 225 from left to right. The number of the second transmission shafts 224 and the open cover bits 23 is also 8. The driving member 221 drives the first transmission shaft 223 to rotate, thereby driving the driving gears 225 and the transmission gears 226 to rotate, to drive the second transmission shafts 224 and the open cover bits 23 to rotate.

[0056] It should be noted that the present invention does not impose any restrictions on the structural form of the lid-opening bit 23. For example, those skilled in the art can set the lid-opening bit 23 in the form of a detachable bit, or can also set the lid-opening bit 23 in the form of a bushing + bit, etc. Such adjustments and changes to the specific structural form of the lid-opening bit 23 do not deviate from the basic principle of the present invention and should all be limited within the protection scope of the present invention.

[0057] It should also be noted that the present invention does not impose any restrictions on the number of the lid-opening bits 23. For example, those skilled in the art can also set the lid-opening bits 23 to be 10 or 12, etc. Such adjustments and changes to the specific number of the lid-opening bits 23 do not deviate from the basic principle of the present invention and should all be limited within the protection scope of the present invention.

[0058] Preferably, as Figures 3 to 6 shown, the lid-opening bit 23 of the present invention includes a bit 231 and a bushing assembly distributed along the vertical direction. The top end of the bushing assembly is connected to the second transmission shaft 224. The bushing assembly is located in the accommodation cavity. The bit 231 is located below the mounting base 21. The top end of the bit 231 extends into the accommodation cavity from the second opening 2121 and is fixedly connected to the bottom end of the bushing assembly. The second transmission shaft 224 can drive the bushing assembly to rotate.

[0059] Exemplarily, as Figures 3 to 6 shown, the top end and the bottom end of the bushing assembly of the present invention are respectively fixedly connected to the second transmission shaft 224 and the bit 231. The bit 231 is detachably connected to the bushing assembly, so that the lid-opening device can replace bits 231 of different specifications to match more specifications of tube caps. The bushing assembly is installed in the accommodation cavity. The bit 231 passes through the second opening 2121 and protrudes from the opening 11, making the fixation of the bit 231 more stable and the operation more stable.

[0060] It should be noted that the present invention does not impose any restrictions on the structural form of the bushing assembly. For example, those skilled in the art can set the bushing assembly in the form of a single bushing, or can also adopt the form of an upper bushing + a lower bushing, etc. Such adjustments and changes to the specific structural form of the bushing assembly do not deviate from the basic principle of the present invention and should all be limited within the protection scope of the present invention.

[0061] Preferably, as Figures 3 to 5As shown, the mounting base 21 of the present invention includes a first mounting base 211 and a second mounting base 212 which are distributed up and down. The accommodating cavity includes a first accommodating cavity 2112 provided in the first mounting base 211 and a second accommodating cavity 2122 provided in the second mounting base 212. The first opening 2111 is provided in the first mounting base 211 and communicates with the top end of the first accommodating cavity 2112. The bottom end of the first accommodating cavity 2112 communicates with the top end of the second accommodating cavity 2122. The second opening 2121 is provided in the second mounting base 212 and communicates with the bottom end of the second accommodating cavity 2122. The transmission gear set is located in the first accommodating cavity 2112, and a part of the open cover bit 23 is located in the second accommodating cavity 2122.

[0062] Exemplarily, as Figures 3 to 5 shown, the first mounting base 211 of the present invention is located above the second mounting base 212. A first accommodating cavity 2112 is provided in the first mounting base 211, and a second accommodating cavity 2122 is provided in the second mounting base 212. The first opening 2111 is provided at the top of the first mounting base 211 and communicates with the top end of the first accommodating cavity 2112. The second opening 2121 is provided at the bottom of the second mounting base 212 and communicates with the bottom end of the second accommodating cavity 2122. The transmission gear set is located in the first accommodating cavity 2112 and can rotate relative to the first accommodating cavity 2112.

[0063] Preferably, as Figures 3 to 5 shown, the open cover device of the present invention further includes a first elastic member 41 installed in the second accommodating cavity 2122. The first elastic member 41 is sleeved on the second transmission shaft 224. The top end of the first elastic member 41 abuts against or is connected to the top wall of the second accommodating cavity 2122. The bottom end of the first elastic member 41 abuts against or is connected to the open cover bit 23. A through hole 2321 extending in the vertical direction is provided on the sleeve assembly. The bottom end of the second transmission shaft 224 is inserted into the through hole 2321. The sleeve assembly can move relative to the second transmission shaft 224 in the vertical direction. A limiting structure 2331 is provided on the sleeve assembly. The limiting structure 2331 is located above the second opening 2121. The limiting structure 2331 is configured to prevent the sleeve assembly from moving downward through the second opening 2121.

[0064] Preferably, as Figures 3 to 6 shown, the sleeve assembly of the present invention includes an upper sleeve 232 and a lower sleeve 233. The top end of the upper sleeve 232 is connected to the second transmission shaft 224. The bottom end of the lower sleeve 233 is fixedly connected to the bit 231. The through hole 2321 is provided on the upper sleeve 232. The limiting structure 2331 is provided on the lower sleeve 233. A first tooth-shaped structure 2322 is provided at the bottom end of the upper sleeve 232. A second tooth-shaped structure 2332 is provided at the top end of the lower sleeve 233. The first tooth-shaped structure 2322 meshes with the second tooth-shaped structure 2332.

[0065] Exemplarily, as Figures 3 to 5 shown, a through hole 2321 extending in the vertical direction is provided on the upper bushing 232 of the present invention. The bottom end of the second transmission shaft 224 is inserted into the through hole 2321. The second transmission shaft 224 is D-shaped, and the through hole 2321 is also D-shaped. The limiting structure 2331 on the lower bushing 233 can prevent the lower bushing 233 and the bit 231 from moving downward through the second opening 2121. That is to say, the upper bushing 232, the lower bushing 233 and the bit 231 can move upward and compress the first elastic member 41. With such a setting, when the lid-opening device opens the lid and the bit 231 presses against the tube cap, the bit 231 can compress the first elastic member 41, so that the bit 231 has more matching space and can smoothly enter the tube cap by the pressure of the first elastic member 41.

[0066] Exemplarily, as Figures 3 to 6 shown, the upper bushing 232 and the lower bushing 233 of the present invention are arranged in the vertical direction and connect the second transmission shaft 224 with the bit 231. By setting the upper bushing 232 and the lower bushing 233, the vibration and eccentricity in the transmission process can be reduced, the installation error can be compensated, and thus the transmission efficiency can be improved. The first tooth-shaped structure 2322 and the second tooth-shaped structure 2332 are meshing asymmetric trapezoids. One side of the asymmetric trapezoid is a slope of 30° to 60°, and the other side is a slope of 70° to 80°. With such a setting, when the lid-closing device closes the lid and after the tube cap of the cryogenic tube is closed and the tube cap and the lower bushing 233 can stop rotating, the upper bushing 232 can still rotate with the second transmission shaft 224, and the upper bushing 232 moves upward, thereby compressing the first elastic member 41, so as to offset the driving force of the driving mechanism 22 and avoid damage to the tube cap caused by excessive rotation of the tube cap.

[0067] It should be noted that the present invention does not impose any restrictions on the structural form of the lid-pushing device 3. For example, those skilled in the art can set the lid-pushing device 3 in the form of an electric drive of a driving motor + a push plate, or can also adopt a manual drive form of a lever + a push plate, etc. Such adjustments and changes to the specific structural form of the lid-pushing device 3 do not deviate from the basic principle of the present invention and should all be limited within the protection scope of the present invention.

[0068] Preferably, as Figures 3 to 5 shown, a handle 12 extending in the vertical direction is provided at the top of the housing 1 of the present invention. The lid-pushing device 3 includes a lever 31 arranged in the vertical direction and a lid-pushing assembly. The lever 31 is located inside the handle 12 and the top end of the lever 31 extends outside the handle 12. The bottom end of the lever 31 is fixedly connected to the lid-pushing assembly. After the lid-opening device 2 finishes the lid-closing operation, the lever 31 is pressed to make the lid-pushing assembly move downward so that the bottom end of the lid-pushing assembly presses against the tube cap of the cryogenic tube.

[0069] Exemplarily, as Figures 3 to 5 shown, the top of the housing 1 of the present invention is a handle 12, and is connected to a holding and opening device. The pressing rod 31 is arranged in the vertical direction, and the top end of the pressing rod 31 extends outside the handle 12. The push cover assembly can move up and down relative to the housing 1. After the closing device 2 finishes the closing operation, by pressing the pressing rod 31, the push cover assembly is driven to move downward, so that the bottom end of the push cover assembly extends out of the opening 11 and presses against the tube cap of the cryotube, thereby enabling the separation of the bit 231 and the tube cap.

[0070] It should be noted that the present invention does not impose any restrictions on the structural form of the push cover assembly. For example, those skilled in the art can set the push cover assembly in the form of a slideway + push plate, or can also adopt the form of a spring + push plate + guide post, etc. Such adjustments and changes to the specific structural form of the push cover assembly do not deviate from the basic principle of the present invention and should all be limited within the protection scope of the present invention.

[0071] Preferably, as Figures 3 to 5 shown, the push cover assembly of the present invention includes an upper push cover member 32, a guide post 33, a lower push cover member 34, and a second elastic member 42. The bottom end of the pressing rod 31 is fixedly connected to the upper push cover member 32. The upper push cover member 32 is located above the mounting base 21, and the lower push cover member 34 is located below the mounting base 21. The mounting base 21 is provided with a guide hole 213 adapted to the guide post 33. The guide post 33 passes through the guide hole 213. The top end and the bottom end of the guide post 33 are respectively fixedly connected to the upper push cover member 32 and the lower push cover member 34. The second elastic member 42 is sleeved on the guide post 33. The top end of the second elastic member 42 abuts against the bottom of the upper push cover member 32, and the bottom end of the second elastic member 42 abuts against the mounting base 21. The lower push cover member 34 is provided with a through hole 341 corresponding to the opening bit 23, and the opening bit 23 passes through the through hole 341.

[0072] Exemplarily, as Figures 3 to 5As shown, the upper push-cover member 32 of the present invention is located above the first mounting base 211, the lower push-cover member 34 is located below the second mounting base 212. The top and bottom ends of the guiding column 33 are fixedly connected to the upper push-cover member 32 and the lower push-cover member 34 respectively. The first mounting base 211 and the second mounting base 212 are provided with guiding holes 213 penetrating through the first mounting base 211 and the second mounting base 212 in the vertical direction. The guiding column 33 passes through the guiding holes 213. The push-cover assembly can be supported by the second elastic member 42 from moving downward. The perforations 341 on the lower push-cover member 34 correspond to the bit heads 231 one by one. When it is necessary to push the cover, pressing the pressing rod 31 will compress the second elastic member 42, causing the pressing rod 31 and the push-cover assembly to move downward, so that the lower push-cover member 34 extends out of the opening 11 and presses against the tube cap of the cryogenic storage tube, thus completing the operation of removing the cover. Releasing the pressing rod 31, the pressing rod 31 and the push-cover assembly can be bounced back to the initial position by relying on the elastic force of the second elastic member 42.

[0073] It should be noted that the present invention does not impose any restrictions on the number of the guiding columns 33. For example, those skilled in the art can set the guiding column 33 to 1, 2, 3, etc. Such adjustments and changes to the specific number of the guiding columns 33 do not deviate from the basic principle of the present invention and should all be limited within the protection scope of the present invention.

[0074] Preferably, as Figures 3 to 5 shown, the number of the guiding columns 33 of the present invention is at least two and they are spaced apart in the horizontal direction.

[0075] Exemplarily, as Figures 3 to 5 shown, the guiding columns 33 of the present invention are two distributed left and right. By setting two guiding columns 33, the structure of the push-cover device 3 can be made more stable, and the up and down movement can be more accurate and smooth.

[0076] Preferably, as Figure 5 and Figure 7 shown, the mounting base 21 of the present invention is provided with a mounting cavity 214. The top end of the mounting cavity 214 is open. The bottom end of the mounting cavity 214 is communicated with the top end of the guiding hole 213. The second elastic member 42 is located in the mounting cavity 214, and the bottom end of the second elastic member 42 abuts against the bottom wall of the mounting cavity 214.

[0077] Exemplarily, as Figure 5 and Figure 7 shown, the mounting cavity 214 of the present invention is located above the guiding hole 213 and is coaxially arranged with the guiding hole 213. The diameter of the mounting cavity 214 is larger than that of the guiding hole 213. The guiding column 33 passes through the mounting cavity 214 and the guiding hole 213 from top to bottom in sequence. The second elastic member 42 is located in the mounting cavity 214, and the bottom end of the second elastic member 42 abuts against the bottom wall of the mounting cavity 214.

[0078] Those skilled in the art will understand that although some of the embodiments described herein include certain features included in other embodiments rather than other features, the combination of features of different embodiments is meant to be within the scope of this application and forms different embodiments. For example, in the claims of this application, any one of the claimed embodiments can be used in any combination.

[0079] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easily understood by those skilled in the art that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An opening device, characterized in that, It includes a housing (1), an open - cover device (2) and a push - cover device (3) installed on the housing (1). The open - cover device (2) includes a mounting base (21) connected to the housing (1), a driving mechanism (22) and an open - cover bit (23) installed on the mounting base (21). An opening (11) is provided at the bottom end of the housing (1), and the open - cover bit (23) protrudes from the opening (11). The driving mechanism (22) is used to drive the open - cover bit (23) to rotate for opening or closing the lid of a cryogenic tube. The push - cover device (3) can move relative to the housing (1) in the vertical direction. After the open - cover device (2) finishes the closing operation, the push - cover device (3) can move downward so that the bottom end of the push - cover device (3) presses against the lid of the cryogenic tube, thereby separating the open - cover bit (23) from the lid.

2. The open lid device according to claim 1, wherein The driving mechanism (22) includes a driving component and a transmission component. The driving component is located above the mounting base (21). A receiving cavity is provided inside the mounting base (21). A first opening (2111) communicating with the top end of the receiving cavity is provided at the top of the mounting base (21), and a second opening (2121) communicating with the bottom end of the receiving cavity is provided at the bottom of the mounting base (21). The transmission component is installed in the receiving cavity. The top end of the transmission component extends out from the first opening (2111) and is fixedly connected to the driving component. The top end of the open - cover bit (23) is inserted into the receiving cavity from the second opening (2121) and is connected to the bottom end of the transmission component. The driving component can drive the transmission component to rotate to drive the open - cover bit (23) to rotate.

3. The opening device according to claim 2, characterized in that, The transmission component includes a first transmission shaft (223), a second transmission shaft (224) and a transmission gear set. The top end of the first transmission shaft (223) extends out from the first opening (2111) and is fixedly connected to the driving component. The bottom end of the first transmission shaft (223) is connected to the transmission gear set. The top end of the second transmission shaft (224) is connected to the transmission gear set. The bottom end of the second transmission shaft (224) is connected to the open - cover bit (23). The driving component can drive the first transmission shaft (223), the transmission gear set and the second transmission shaft (224) to rotate in sequence to drive the open - cover bit (23) to rotate.

4. The opening device according to claim 3, wherein, The number of the open - cover bits (23) is multiple. The transmission gear set includes multiple driving gears (225) arranged at intervals and multiple transmission gears (226) arranged at intervals. Adjacent two driving gears (225) are meshed and connected through one transmission gear (226). The bottom end of the first transmission shaft (223) is connected to one of the multiple driving gears (225). The number of the second transmission shafts (224) is multiple and is arranged in one - to - one correspondence with the driving gears (225) and the open - cover bits (23).

5. The opening device according to claim 4, characterized in that, The open - cap bit (23) includes a bit (231) and a bushing assembly distributed in the vertical direction. The top end of the bushing assembly is connected to the second transmission shaft (224). The bushing assembly is located in the accommodation cavity. The bit (231) is located below the mounting base (21). The top end of the bit (231) extends into the accommodation cavity from the second opening (2121) and is fixedly connected to the bottom end of the bushing assembly. The second transmission shaft (224) can drive the bushing assembly to rotate.

6. The opening device according to claim 5, wherein The mounting base (21) includes a first mounting base (211) and a second mounting base (212) distributed vertically. The accommodation cavity includes a first accommodation cavity (2112) provided in the first mounting base (211) and a second accommodation cavity (2122) provided in the second mounting base (212). The first opening (2111) is provided in the first mounting base (211) and communicates with the top end of the first accommodation cavity (2112). The bottom end of the first accommodation cavity (2112) communicates with the top end of the second accommodation cavity (2122). The second opening (2121) is provided in the second mounting base (212) and communicates with the bottom end of the second accommodation cavity (2122). The transmission gear set is located in the first accommodation cavity (2112). A part of the open - cap bit (23) is located in the second accommodation cavity (2122). The open - cap device further includes a first elastic member (41) installed in the second accommodation cavity (2122). The first elastic member (41) is sleeved on the second transmission shaft (224). The top end of the first elastic member (41) abuts against or is connected to the top wall of the second accommodation cavity (2122). The bottom end of the first elastic member (41) abuts against or is connected to the open - cap bit (23). A through - hole (2321) extending in the vertical direction is provided on the bushing assembly. The bottom end of the second transmission shaft (224) is inserted into the through - hole (2321). The bushing assembly can move vertically relative to the second transmission shaft (224). A limiting structure (2331) is provided on the bushing assembly. The limiting structure (2331) is located above the second opening (2121). The limiting structure (2331) is configured to prevent the bushing assembly from moving downward through the second opening (2121).

7. The open lid device according to claim 6, characterized in that, The bushing assembly includes an upper bushing (232) and a lower bushing (233). The top end of the upper bushing (232) is connected to the second transmission shaft (224). The bottom end of the lower bushing (233) is fixedly connected to the bit head (231). The through hole (2321) is provided on the upper bushing (232). The limiting structure (2331) is provided on the lower bushing (233). A first toothed structure (2322) is provided at the bottom end of the upper bushing (232). A second toothed structure (2332) is provided at the top end of the lower bushing (233). The first toothed structure (2322) meshes with the second toothed structure (2332).

8. The open lid device according to claim 1, wherein, A handle (12) extending in the vertical direction is provided at the top of the housing (1). The push cover device (3) includes a pressure rod (31) arranged in the vertical direction and a push cover assembly. The pressure rod (31) is located inside the handle (12) and the top end of the pressure rod (31) extends outside the handle (12). The bottom end of the pressure rod (31) is fixedly connected to the push cover assembly. After the closing cover operation is completed by the cover opening device (2), the pressure rod (31) is pressed to move the push cover assembly downward so that the bottom end of the push cover assembly presses against the tube cover of the cryopreservation tube.

9. The open lid device according to claim 8, wherein, The push cover assembly includes an upper push cover member (32), a guide post (33), a lower push cover member (34), and a second elastic member (42). The bottom end of the pressure rod (31) is fixedly connected to the upper push cover member (32). The upper push cover member (32) is located above the mounting base (21). The lower push cover member (34) is located below the mounting base (21). A guide hole (213) adapted to the guide post (33) is provided on the mounting base (21). The guide post (33) passes through the guide hole (213). The top end and the bottom end of the guide post (33) are respectively fixedly connected to the upper push cover member (32) and the lower push cover member (34). The second elastic member (42) is sleeved on the guide post (33). The top end of the second elastic member (42) abuts against the bottom of the upper push cover member (32). The bottom end of the second elastic member (42) abuts against the mounting base (21). A through hole (341) corresponding to the cover opening bit head (23) is provided on the lower push cover member (34). The cover opening bit head (23) passes through the through hole (341).

10. The open lid device according to claim 9, characterized in that, The number of the guide posts (33) is at least two and they are distributed at intervals in the horizontal direction; and / or An installation cavity (214) is provided on the mounting base (21). The top end of the installation cavity (214) is open. The bottom end of the installation cavity (214) communicates with the top end of the guide hole (213). The second elastic member (42) is located in the installation cavity (214). The bottom end of the second elastic member (42) abuts against the bottom wall of the installation cavity (214).

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