CN219585283U - Storing and taking device for freezing storage box - Google Patents

Abstract

The application discloses a storage device of a freezing storage box, which comprises a storage mechanism, a first screw, a first nut, a fourteenth driving wheel, an eighth driving belt and a sixth motor. An output shaft of the sixth motor is connected with the end face of the fourteenth transmission wheel, and the eighth transmission belt is in transmission fit with the outer peripheral surfaces of the fourteenth transmission wheel and the first nut; the first screw rod is arranged in the vertical direction, one end of the first screw rod is connected with the access mechanism, and the first screw rod penetrates through the first nut and is in threaded connection with the first nut. When the output shaft of the sixth motor rotates, the fourteenth driving wheel drives the first nut to rotate relative to the first screw, and the first screw drives the access mechanism to move along the vertical direction, so that the access mechanism can carry out the access operation of the freezing storage box. Compared with the prior art, the method is beneficial to reducing the overall cost of the low-temperature storage equipment for biological samples and improving the preservation effect of the freezing storage box in a low-temperature environment.

Description

Storing and taking device for freezing storage box

Technical Field

The application relates to the technical field of biological sample preservation, in particular to a freezing storage box access device.

Background

The low-temperature storage device for biological samples is an important basic device in the field of biological medicine at present, and biological samples such as blood, stem cells and immune cells are usually placed in a freezing tube, and the freezing tube can be further placed on a freezing frame positioned in a refrigerator after being placed in a freezing box. Because the refrigerator can generate a low-temperature environment, the biological sample can keep activity for a long time so as to realize long-term stable preservation of the biological sample.

The access mechanism is used for accessing the frozen storage box from the frozen storage rack, in the prior art, the access mechanism is usually installed at a fixed position, and after the frozen storage rack is adjusted to the butt joint position of the access mechanism, the access mechanism can store the frozen storage box into the sample placing space of the frozen storage rack or take out the frozen storage box stored into the sample placing space of the frozen storage rack. For example, in the technical solution disclosed in the patent application publication No. US20120060520A1, a conveying bin is provided at an upper portion in the case, a freezer for storing the freezer is provided at a lower portion, and a freezer input/output module is provided at a position close to the access port. When the frozen storage box is stored and taken out, the frozen storage frame in the frozen storage box is taken out by the frozen storage frame extraction module in the conveying bin, then the frozen storage frame is moved to the position near the position of the frozen storage box input/output module, and the frozen storage box is taken out from the frozen storage frame or stored on the frozen storage frame by the frozen storage box input/output module.

If the access mechanism is arranged in the conveying bin with a non-low-temperature environment, the freezing and storing rack needs to be partially or completely separated from the conveying bin to reach the position of the access mechanism, and as a plurality of freezing and storing boxes can be stored on one freezing and storing rack, other freezing and storing boxes on the freezing and storing rack can need to be separated from the freezing box when the operation of storing and storing one freezing and storing box is carried out, and the storage of the freezing and storing boxes can be influenced by the temperature rise. If the access mechanism is completely arranged in the refrigerator with the low-temperature environment, the refrigerator is required to be designed to be larger, the miniaturization design of products is not facilitated, the energy consumption is high, and the manufacturing cost of parts suitable for long-term working in the deep low-temperature environment is relatively high.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a freezing storage box storing and taking device which can solve the technical problems that the storing effect of the freezing storage box is affected or the whole manufacturing cost of biological sample low-temperature storage equipment is higher because the position of a storing and taking mechanism is not adjustable in the prior art.

The utility model provides a storage and retrieval device of a freezing storage box, which comprises a storage and retrieval mechanism, a driving mechanism and a first transmission mechanism, wherein the first transmission mechanism comprises a first screw, a first nut, a fourteenth transmission wheel and an eighth transmission belt; the driving mechanism comprises a sixth motor;

an output shaft of the sixth motor is connected with the end face of the fourteenth driving wheel; the fourteenth driving wheel and the first nut are arranged at intervals along the direction parallel to the horizontal plane, and the eighth driving belt is in driving fit with the outer peripheral surfaces of the fourteenth driving wheel and the first nut; the first screw rod is arranged in the vertical direction, one end of the first screw rod is connected with the access mechanism, and the first screw rod penetrates through the first nut and is in threaded connection with the first nut;

when the output shaft of the sixth motor rotates, the fourteenth driving wheel drives the first nut to rotate relative to the first screw rod, so that the first screw rod drives the access mechanism to move along the vertical direction.

In an alternative embodiment of the application, the drive mechanism further comprises a fifth motor; the storing and taking mechanism comprises a transmission assembly and a shovel plate, and the transmission assembly is respectively connected with an output shaft of the fifth motor and the shovel plate; when the output shaft of the fifth motor rotates, the transmission assembly drives the shovel plate to move along the first horizontal direction.

In an alternative embodiment of the present application, the first transmission mechanism further includes an eighth rotation shaft; the eighth rotating shaft is arranged along the vertical direction and penetrates through the first screw rod; the first end of the eighth rotating shaft is connected with the output shaft of the fifth motor; the transmission assembly is respectively connected with the second end of the eighth rotating shaft and the shovel plate;

when the output shaft of the fifth motor rotates, the eighth rotating shaft is driven to rotate, so that the transmission assembly drives the shovel plate to move along the first horizontal direction.

In an alternative embodiment of the present application, the transmission assembly includes a twenty-second gear and a ninth rack, the second end of the eighth rotating shaft is connected to an end surface of the twenty-second gear, the ninth rack is disposed along the first horizontal direction, an outer circumferential surface of the twenty-second gear is in driving fit with the ninth rack, and the ninth rack is connected to the shovel.

In an alternative embodiment of the present application, the output shaft of the fifth motor is disposed in a vertical direction; and in the direction parallel to the horizontal plane, the eighth rotating shaft and the fifth motor are arranged in a stacked manner; the first transmission mechanism further comprises a twentieth transmission wheel, a twenty-first transmission wheel and a tenth transmission belt; the output shaft of the fifth motor is connected with the end face of the twentieth driving wheel, the twentieth driving wheel and the twenty-first driving wheel are arranged at intervals in the direction parallel to the horizontal plane, the tenth driving belt is sleeved on the outer peripheral surfaces of the twentieth driving wheel and the twenty-first driving wheel, and the twenty-first driving wheel is fixedly connected with the first end of the eighth rotating shaft;

when the output shaft of the fifth motor rotates, the twenty-first driving wheel and the eighth rotating shaft are driven to rotate by the twenty-first driving wheel through the tenth driving belt.

In an alternative embodiment of the application, the access mechanism further comprises an access mount, a seventeenth sliding connection and an eighteenth sliding connection; the seventeenth sliding connection part is in sliding connection with the eighteenth sliding connection part, and at least one of the seventeenth sliding connection part and the eighteenth sliding connection part is arranged along the first horizontal direction; the seventeenth sliding connection part is connected with the shovel plate, and the eighteenth sliding connection part is installed on the access installation frame.

In an alternative embodiment of the application, the transmission assembly includes a seventeenth gear, an eighteenth gear, a nineteenth gear, and a ninth belt; the output shaft of the fifth motor, the rotation axis of the seventeenth gear and the ninth transmission belt are all arranged along the first horizontal direction, the output shaft of the fifth motor is connected with the end face of the seventeenth gear, and the seventeenth gear is in transmission fit with the outer peripheral surface of the eighteenth gear; the end face of the eighteenth gear is connected with the end face of the nineteenth gear, and the rotation axes of the eighteenth gear and the nineteenth gear are arranged along a second horizontal direction;

the ninth transmission belt is a chain and comprises a first end and a second end which are arranged along a first horizontal direction, and the heights of the first end and the second end of the ninth transmission belt in the vertical direction are different; the first end of the ninth transmission belt is in transmission fit with the peripheral surface of the nineteenth gear, and the second end of the ninth transmission belt is connected with the shovel plate; wherein the second horizontal direction is perpendicular to the first horizontal direction.

In an alternative embodiment of the application, the access mechanism further comprises a third drive mount and an access mount; one side of the first end of the ninth transmission belt is movably connected with the third transmission mounting seat, and the other side of the first end of the ninth transmission belt is movably connected with the nineteenth gear and the access mounting frame.

In an optional embodiment of the present application, the storage device further includes a third transmission mechanism and a fourth transmission mechanism connected to the driving mechanism, respectively; the first transmission mechanism is arranged on the fourth transmission mechanism, and the fourth transmission mechanism is arranged on the third transmission mechanism;

the third transmission mechanism drives the access mechanism, the first transmission mechanism and the fourth transmission mechanism to move along a first horizontal direction under the drive of the driving mechanism; the fourth transmission mechanism drives the access mechanism and the first transmission mechanism to move along a second horizontal direction; wherein the first horizontal direction and the second horizontal direction are parallel to the horizontal plane, and the first horizontal direction and the second horizontal direction are perpendicular.

In an alternative embodiment of the present application, the storage device further includes a fifteenth driving wheel and a sixteenth driving wheel; the driving mechanism comprises a seventh motor; an output shaft of the seventh motor is connected with the end face of the fifteenth driving wheel, the fifteenth driving wheel is in driving fit with the outer peripheral face of the sixteenth driving wheel, the end face of the sixteenth driving wheel is connected with the access mechanism, and the rotation axis of the sixteenth driving wheel is parallel to the vertical direction.

The application provides a frozen storage box storing and taking device which comprises a storing and taking mechanism, a driving mechanism and a first transmission mechanism, wherein the first transmission mechanism comprises a first screw, a first nut, a fourteenth transmission wheel and an eighth transmission belt; the driving mechanism includes a sixth motor. An output shaft of the sixth motor is connected with the end face of the fourteenth transmission wheel; the fourteenth driving wheel and the first nut are arranged at intervals along the direction parallel to the horizontal plane, and the eighth driving belt is in driving fit with the outer peripheral surfaces of the fourteenth driving wheel and the first nut; the first screw rod is arranged in the vertical direction, one end of the first screw rod is connected with the access mechanism, and the first screw rod penetrates through the first nut and is in threaded connection with the first nut. When the output shaft of the sixth motor rotates, the fourteenth driving wheel drives the first nut to rotate relative to the first screw rod, so that the first screw rod drives the access mechanism to move along the vertical direction, and the access mechanism can further move along a first horizontal direction perpendicular to the vertical direction to carry out the access operation of the freezing storage box. Compared with the prior art, the position of the access mechanism in the vertical direction is adjustable, so that the access mechanism can be arranged outside the freezer with the low-temperature environment, thereby being beneficial to reducing the overall cost of the biological sample low-temperature storage equipment; and in the process of taking out the frozen storage box, other frozen storage boxes on the frozen storage rack do not need to leave the low-temperature environment, so that the preservation effect of the frozen storage box in the low-temperature environment can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an assembly schematic diagram of a storage device for a freezing box in a biological sample low-temperature storage device according to an embodiment of the present application;

FIG. 2 is a partial enlarged view of the interior of a biological sample cryogenic storage device;

FIG. 3 is a perspective view of a first perspective view of an alternative combination of an access mechanism, a first transmission mechanism, a second transmission mechanism, and a third transmission mechanism according to an embodiment of the present application;

fig. 4 is a second perspective view of a combination structure of an access mechanism, a first transmission mechanism, a second transmission mechanism and a third transmission mechanism according to an embodiment of the present application.

FIG. 5 is a perspective view of an alternative access mechanism according to an embodiment of the present application;

FIG. 6 is a second perspective view of an alternative access mechanism according to an embodiment of the present application;

Fig. 7 is a perspective view of a first perspective of an access mechanism according to another alternative embodiment of the present application.

Reference numerals illustrate:

101. an access mechanism; 1011. a shovel plate; 1012. seventeenth gear; 1013. a ninth belt; 1014. an eighteenth gear; 1015. nineteenth gear; 1016. a sixth rotating shaft; 1017. accessing the mounting frame; 1018. a third drive mount; 1019a, seventeenth sliding connection; 1019b, an eighteenth sliding connection; 102. a first transmission mechanism; 1041. a first screw; 1042. a first nut; 1043. a first drive mount; 1044. a second drive mount; 1045. a fourteenth transmission wheel; 1046. an eighth belt; 1047. a twentieth transmission wheel; 1048. a twenty-first transmission wheel; 1049. a tenth belt; 1051. a fifteenth transmission wheel; 1052. a sixteenth driving wheel; 1053. a twenty-second gear; 1054. a ninth rack; 1055. an eighth rotation shaft; 106. a third transmission mechanism; 107. a fourth transmission mechanism; 201. a freezing storage rack; 305. a fifth motor; 306. a sixth motor; 307. a seventh motor; 50. and (5) storing the bin body.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.

Referring to fig. 1-7, an embodiment of the present application provides a storage and retrieval device for a freezing storage box, which includes a storage and retrieval mechanism 101, a driving mechanism (not shown) and a first transmission mechanism 102, wherein the driving mechanism includes a sixth motor 306, and the first transmission mechanism 102 includes a first screw 1041, a first nut 1042, a fourteenth transmission wheel 1045 and an eighth transmission belt 1046.

An output shaft of the sixth motor 306 is connected with an end face of a fourteenth transmission wheel 1045; the first nut 1042 and the fourteenth driving wheel 1045 are disposed at intervals in a direction parallel to a horizontal plane, and the eighth driving belt 1046 is in driving engagement with the outer circumferential surfaces of the fourteenth driving wheel 1045 and the first nut 1042. The first screw 1041 is disposed in a vertical direction, one end of the first screw 1041 is connected to the access mechanism 101, and the first screw 1041 passes through the first nut 1042 and is screwed with the first nut 1042. Wherein the vertical direction is a direction perpendicular to the horizontal plane.

When the output shaft of the sixth motor 306 rotates, the fourteenth driving wheel 1045 drives the first nut 1042 to rotate relative to the first screw 1041, so that the first screw 1041 drives the access mechanism 101 to move along the vertical direction.

In this embodiment, the eighth driving belt 1046 may be directly sleeved on the outer peripheral surface of the first nut 1042, or may be indirectly sleeved on the outer peripheral surface of the first nut 1042, and only the eighth driving belt 1046 may drive the first nut 1042 to rotate relative to the first screw 1041. For example, the outer peripheral surface of the first nut 1042 may be fixedly connected to a driving wheel, and the eighth driving belt 1046 is sleeved on the outer peripheral surface of the driving wheel.

In this embodiment, referring to fig. 1, the access device of the freezing storage box is a part of a biological sample low-temperature storage device, at least a storage bin 50 is disposed in the biological sample low-temperature storage device, and a freezing storage rack 201 is disposed in the storage bin 50. A low temperature environment may be generated in the storage bin 50 to store a freezing box (not shown) placed on the freezing frame 201 at a low temperature. Wherein, the low temperature environment generally refers to an environment with a temperature of-80 ℃ or below-80 ℃, and the preservation of the biological sample in the environment can reduce the biochemical reaction of the biological sample and maintain the stability of various components in the biological sample.

In this embodiment, each of the freezing shelves 201 has at least one support (not shown) provided with a sample placement space (not shown) for placing one or more freezing boxes. The specific structural composition, shape and size of the freezing frame 201 and the supporting member are not limited, and can be set correspondingly according to practical application requirements.

In this embodiment, the sample placement space is used for placing a freezing box (not shown), and the specific placement position is not limited. For example, the sample storage space may be located on the freezing rack 201 or may be located on an external docking mechanism (not shown) for docking with the outside of the biological sample cryogenic storage device. The sample placement space may be a completely open space or a semi-closed space having an opening on only one side or both sides. The sample placing space is communicated with the outside on one side or both sides in the first horizontal direction, i.e., the sample placing space has an opening on one side or both sides in the first horizontal direction, so that the access mechanism 101 can store the cryopreservation cassette in the sample placing space through the opening or take out the cryopreservation cassette from the sample placing space.

In this embodiment, the access mechanism 101 is at least used to take out the cryopreservation cassette from a sample placing space or store the cryopreservation cassette into a sample placing space. The specific structure of the access mechanism 101 is not limited, and can be set correspondingly according to practical application requirements. For example, access mechanism 101 may include a blade 1011 or a jaw (not shown) that can be moved back and forth by blade 1011 or a gripping movement of the jaw to remove the cartridge from a sample receiving space or to store the cartridge in a sample receiving space.

In this embodiment, the driving mechanism is configured to provide driving force for movement of other mechanisms, and the specific structural composition, the size and the setting position of the driving force provided, and the connection manner, shape and size of the driving mechanism and other mechanisms are not limited, and may be set reasonably according to practical application requirements. For example, the driving mechanism may include a plurality of driving members, all or part of the driving members may be motors, and the driving forces provided by different motors may be the same or different, and different motors may be disposed at different positions of the storage and retrieval device of the freezer and respectively connected to and providing driving forces for different other mechanisms.

In the present embodiment, since the access mechanism 101 is required to perform the access operation of the cryopreservation cassette in the sample placement spaces located at different vertical heights, the height position of the access mechanism 101 in the vertical direction can be adjusted by providing the first transmission mechanism 102.

In this embodiment, the driving mechanism is connected to the access mechanism 101, and can drive the access mechanism 101 to move inside and outside the storage compartment 50 and perform the access operation of the freezing storage box. For example, after the first transmission mechanism 102 drives the access mechanism 101 to move into the storage bin 50, the access mechanism 101 may further move along the first horizontal direction and extend into a sample placing space, so as to take out the cryopreserved cassette from the sample placing space and transfer the cryopreserved cassette to the outside of the storage bin 50, or store the cryopreserved cassette obtained from the outside of the storage bin 50 into a sample placing space. The specific transmission structure of the driving mechanism driving the access mechanism 101 to move and performing the access operation is not limited, and may be reasonably selected according to practical application requirements.

In this embodiment, the access mechanism 101 and the driving mechanism may be located inside the storage bin 50 or outside the storage bin 50. However, since the cost of components suitable for use in a low-temperature environment tends to be higher than that of components suitable for use only in a non-low-temperature environment, it is preferable that the access mechanism 101 and the drive mechanism are both provided outside the storage compartment 50.

Alternatively, in consideration of the price of the low temperature motor suitable for use in the low temperature environment being more expensive than the normal temperature motor unsuitable for use in the low temperature environment, when the driving mechanism includes a plurality of motors, it may be preferable to use the normal temperature motor and to set the position of the normal temperature motor outside the storage bin 50.

Alternatively, in order that the accessing mechanism 101 may automatically perform the accessing operation, see fig. 3 and 4, the driving mechanism may include a fifth motor 305; access mechanism 101 may also include a drive assembly (not shown) coupled to an output shaft of fifth motor 305 and blade 1011, respectively, and blade 1011. When the output shaft of the fifth motor 305 rotates, the transmission assembly drives the blade 1011 to move in the first horizontal direction.

The transmission assembly is used for converting the rotation motion of the output shaft of the fifth motor 305 into the linear motion of the shovel 1011 along the first horizontal direction, and the specific structural composition of the transmission assembly is not limited, and can be reasonably selected according to the practical application requirements. For example, the transmission assembly may be a combination of a gear and a rack, a combination of a sprocket and a chain, or a combination of two pulleys and a belt.

In addition, the first horizontal direction is a direction parallel to the horizontal plane, and the specific direction of the first horizontal direction is not specifically limited in this embodiment, and may be any direction parallel to the horizontal plane, and the vertical direction is perpendicular to the first horizontal direction. For example, referring to fig. 1 and 2, the first horizontal direction may be an x-direction or an opposite direction in the coordinate system in the drawing, and the vertical direction may be a z-direction or an opposite direction in the coordinate system in the drawing.

Further, in order to obtain a more stable motion transmission effect, referring to fig. 5 and 6, it may be preferable that the transmission assembly includes a seventeenth gear 1012 and a ninth transmission belt 1013, and an end surface of the seventeenth gear 1012 is connected with an output shaft of the fifth motor 305; the ninth belt 1013 is disposed in the first horizontal direction, the ninth belt 1013 is in driving engagement with the seventeenth gear 1012, and the ninth belt 1013 is connected with the shovel 1011.

When the output shaft of the fifth motor 305 rotates, the seventeenth gear 1012 rotates relative to the ninth belt 1013 such that the ninth belt 1013 can move the blade 1011 in the first horizontal direction relative to the seventeenth gear 1012 and the main body of the fifth motor 305.

The specific type, size and shape of the ninth belt 1013 are not limited, and may be reasonably selected according to practical application requirements. For example, the ninth belt 1013 may be a rack or a chain.

In addition, the ninth belt 1013 and the seventeenth gear 1012 may be directly engaged with each other or may be indirectly engaged with each other, and the specific connection manner is not limited herein, and may be reasonably selected according to practical application requirements. For example, one or more gears may be further disposed between the ninth belt 1013 and the seventeenth gear 1012, so long as the ninth belt 1013 drives the blade 1011 to move in the first horizontal direction relative to the seventeenth gear 1012 and the main body of the fifth motor 305 when the seventeenth gear 1012 rotates.

Further, in order to make the related structural members more compact to improve space utilization, referring to fig. 5 and 6, the transmission assembly further includes an eighteenth gear 1014 and a nineteenth gear 1015, an output shaft of the fifth motor 305 is connected to an end face of the seventeenth gear 1012, and both the output shaft of the fifth motor 305 and the seventeenth gear 1012 are disposed along the first horizontal direction; the seventeenth gear 1012 and the eighteenth gear 1014 are in driving engagement with the outer peripheral surfaces thereof; the eighteenth gear 1014 is connected to an end face of the nineteenth gear 1015, and the eighteenth gear 1014 and the nineteenth gear 1015 are each disposed in the second horizontal direction. The ninth belt 1013 is a chain including a first end and a second end both disposed along a first horizontal direction, the first end and the second end of the ninth belt 1013 being different in vertical height. A first end of the ninth belt 1013 is in driving engagement with an outer peripheral surface of the nineteenth gear 1015, and a second end of the ninth belt 1013 is connected to the shovel 1011.

When the output shaft of the fifth motor 305 rotates, the seventeenth gear 1012 rotates along the axis parallel to the first horizontal direction, and drives the eighteenth gear 1014 and the nineteenth gear 1015 to rotate along the axis parallel to the second horizontal direction, so that the ninth transmission belt 1013 can further drive the shovel 1011 to move along the first horizontal direction.

Wherein, when the ninth belt 1013 is a chain, the ninth belt 1013 may be bent such that the first end and the second end are stacked in a vertical direction, and the first end and the second end of the ninth belt 1013 are both disposed in a first horizontal direction.

The second horizontal direction is a direction parallel to the horizontal plane, and the second horizontal direction is perpendicular to the first horizontal direction. For example, referring to fig. 5, the second horizontal direction may be the y direction or the opposite direction in the coordinate system in the figure, and the first horizontal direction may be the x direction or the opposite direction in the coordinate system in the figure.

Further, in order to facilitate assembling the eighteenth gear 1014 and the nineteenth gear 1015, referring to fig. 5 and 6, the transmission assembly further includes a sixth rotating shaft 1016 disposed along the second horizontal direction, and the eighteenth gear 1014 and the nineteenth gear 1015 are both sleeved on the sixth rotating shaft 1016. When the output shaft of the fifth motor 305 rotates, the eighteenth gear 1014, together with the nineteenth gear 1015 and the sixth rotating shaft 1016, can rotate along an axis parallel to the second horizontal direction.

Further, in order to facilitate the assembly of the structure, a support mechanism for supporting the relevant structure may be provided. Specifically, referring to fig. 5 and 6, access mechanism 101 further includes an access mount 1017, and blade 1011, fifth motor 305, and sixth rotating shaft 1016 are mounted on access mount 1017, wherein sixth rotating shaft 1016 is rotatably coupled to access mount 1017. The specific structural composition, shape and size of the mounting frame are not limited, and can be reasonably selected according to practical application requirements.

Further, to ensure the smoothness of the chain movement, referring to fig. 5 and 6, the access mechanism 101 further includes a third transmission mount 1018; one side of the first end of the ninth belt 1013 is movably connected with the third drive mount 1018, and the other side of the first end of the ninth belt 1013 is movably connected with the nineteenth gear 1015 and the access mount 1017. Thus, when the seventeenth gear 1012 drives the ninth belt 1013 to move, the third driving mounting seat 1018 and the access mounting frame 1017 can limit the ninth belt 1013 together.

Further, referring to fig. 7, the transmission assembly may include a twenty-second gear 1053 and a ninth rack 1054; an output shaft of the fifth motor 305 is connected to an end face of a twenty-second gear 1053, a ninth rack 1054 is disposed along a first horizontal direction, an outer peripheral surface of the twenty-second gear 1053 is in driving engagement with the ninth rack 1054, that is, the ninth rack 1054 is in meshed connection with the shovel 1011.

When the output shaft of the fifth motor 305 rotates, the twenty-second gear 1053 rotates relative to the ninth rack 1054, such that the ninth rack 1054 may move the blade 1011 in a first horizontal direction relative to the body of the fifth motor 305 and the twenty-second gear 1053.

The output shaft of the fifth motor 305 and the end face of the twenty-second gear 1053 may be directly or indirectly connected, and the embodiment is not limited herein. Compared with other transmission modes, the mode of matching the gear and the rack is adopted to drive the shovel 1011 to move along the first horizontal direction, the structure is simpler, and the structural strength is relatively higher.

Further, in order to improve space utilization and simplify product construction, referring to fig. 3 and 4, the transmission assembly may include an eighth rotary shaft 1055. The eighth rotary shaft 1055 is disposed along a vertical direction and penetrates the inside of the first screw 1041; a first end of the eighth rotary shaft 1055 in the vertical direction is connected with an output shaft of the fifth motor 305; the transmission assembly is respectively connected with the second end of the eighth rotating shaft 1055 along the vertical direction and the shovel board 1011.

When the output shaft of the fifth motor 305 rotates, the eighth rotating shaft 1055 is driven to rotate, and the second end of the eighth rotating shaft 1055 is connected to the transmission assembly, so that the transmission assembly can further drive the shovel 1011 to move along the first horizontal direction.

Wherein, referring to fig. 7, when the transmission assembly includes a twenty-second gear 1053 and a ninth rack 1054, it may also be preferable that the second end of the eighth rotary shaft 1055 is connected with an end surface of the twenty-second gear 1053. Thus, when the output shaft of the fifth motor 305 rotates, the eighth rotating shaft 1055 and the twenty-second gear 1053 are driven to rotate relative to the ninth rack 1054, so that the ninth rack 1054 drives the shovel 1011 to move along the first horizontal direction.

Further, in order to improve the space utilization, it may be preferable that the output shaft of the fifth motor 305 is disposed in the vertical direction, and the eighth rotary shaft 1055 and the fifth motor 305 are disposed in a stacked manner in a direction parallel to the horizontal plane. And the first transmission 102 further includes a twentieth transmission wheel 1047, a twenty-first transmission wheel 1048, and a tenth transmission belt 1049; an output shaft of the fifth motor 305 is connected with an end face of a twentieth driving wheel 1047, the twentieth driving wheel 1047 and a twenty-first driving wheel 1048 are arranged at intervals in a direction parallel to a horizontal plane, a tenth driving belt 1049 is sleeved on the outer peripheral surfaces of the twentieth driving wheel 1047 and the twenty-first driving wheel 1048, and the twenty-first driving wheel 1048 is fixedly connected with a first end of the eighth rotating shaft 1055.

When the output shaft of the fifth motor 305 rotates, the twentieth driving wheel 1047 drives the twenty-first driving wheel 1048 and the eighth rotating shaft 1055 to rotate through the tenth driving belt 1049.

The eighth rotating shaft 1055 and the fifth motor 305 are stacked, that is, the lengths of the eighth rotating shaft 1055 and the fifth motor 305 in the vertical direction are overlapped, so that the total length occupied by the eighth rotating shaft and the fifth motor in the vertical direction is smaller than the sum of the lengths occupied by the eighth rotating shaft and the fifth motor.

Further, to ensure smoothness of movement of blade 1011, referring to fig. 7, the transmission assembly may further include seventeenth and eighteenth sliding connection portions 1019a and 1019b; the seventeenth sliding connection portion 1019a is slidably connected with the eighteenth sliding connection portion 1019b, at least one of the seventeenth sliding connection portion 1019a and the eighteenth sliding connection portion 1019b being disposed along the first horizontal direction; seventeenth sliding coupling portion 1019a is coupled to blade 1011, and eighteenth sliding coupling portion 1019b is mounted on access mounting 1017.

Further, in order to facilitate the assembly of the structure, a support mechanism for supporting the relevant structure may be provided. Specifically, referring to fig. 3 and 4, the first transmission 102 further includes a first transmission mount 1043 and a second transmission mount 1044; the main body of the fifth motor 305 is mounted on a second drive mount 1044; the first nut 1042 and the body of the sixth motor 306 are mounted on a first drive mount 1043.

Alternatively, referring to fig. 3 and 4, in order that the access mechanism 101 may pass through the openings of the sample placement spaces located in different directions to enter the sample placement spaces for the access operation of the cryopreservation cartridge, the operation execution direction of the access operation by the access mechanism 101 may be adjusted by rotating the access mechanism 101.

Specifically, the driving mechanism may include a seventh motor 307, and an output shaft of the seventh motor 307 is connected to the access mechanism 101. When the output shaft of the seventh motor 307 rotates, the access mechanism 101 is driven to rotate along an axis parallel to the vertical direction. The output shaft of the seventh motor 307 may be directly connected to the access mechanism 101 or indirectly connected to the access mechanism, which is not limited herein.

Optionally, the storage device further comprises a second transmission mechanism (not shown) for connecting the driving mechanism and the storage mechanism 101. The second transmission mechanism drives the access mechanism 101 to rotate along an axis parallel to the vertical direction under the driving of the driving mechanism.

Further, in order to obtain a smoother motion transfer effect, referring to fig. 3, 4 and 7, the second transmission mechanism may include a fifteenth transmission wheel 1051 and a sixteenth transmission wheel 1052; an output shaft of the seventh motor 307 is connected to an end face of a fifteenth transmission wheel 1051, the fifteenth transmission wheel 1051 is in transmission fit with an outer peripheral face of a sixteenth transmission wheel 1052, the end face of the sixteenth transmission wheel 1052 is connected to the access mechanism 101, and a rotation axis of the sixteenth transmission wheel 1052 is parallel to a vertical direction.

When the output shaft of the seventh motor 307 rotates, the fifteenth transmission wheel 1051 drives the sixteenth transmission wheel 1052 and the access mechanism 101 to rotate together along an axis parallel to the vertical direction.

Optionally, in order to expand the movement range of the access mechanism 101 on a plane parallel to the horizontal plane, referring to fig. 1 and 2, the access device for a freezing box may further include a third transmission mechanism 106; the third transmission mechanism 106 is connected with the driving mechanism, and the third transmission mechanism 106 drives the access mechanism 101 to move along the first horizontal direction under the driving of the driving mechanism.

The specific structural composition, shape and size of the third transmission mechanism 106 are not limited, and may be reasonably selected according to practical application requirements. For example, the third transmission mechanism 106 may be a reciprocating linear motion cylinder disposed along the first horizontal direction, and a piston rod of the reciprocating linear motion cylinder is connected to the access mechanism 101, so that the piston rod may drive the access mechanism 101 to move along the first horizontal direction. For another example, the third transmission mechanism 106 may be a screw rod disposed along the first horizontal direction, one end of the screw rod is connected with an output shaft of a motor, the other end of the screw rod is in threaded connection with a nut, and the nut is connected with the access mechanism 101, so that when the output shaft of the motor rotates, the screw rod can be driven to rotate relative to the nut, so that the nut can drive the access mechanism 101 to move along the first horizontal direction. For another example, the third transmission 106 may be a gear and a rack engaged with each other, wherein the rack is disposed along the first horizontal direction, an end face of the gear is connected to an output shaft of a motor, and a main body of the motor or the rack is connected to the access mechanism 101, so that when the output shaft of the motor rotates, the gear can rotate relative to the rack, so that the access mechanism 101 can move along the first horizontal direction.

Optionally, in order to further expand the movement range of the access mechanism 101 on a plane parallel to the horizontal plane, referring to fig. 1 and 2, the cryopreservation cassette access device may further include a fourth transmission mechanism 107; the fourth transmission mechanism 107 is connected with the driving mechanism, and the fourth transmission mechanism 107 drives the access mechanism 101 to move along the second horizontal direction under the driving of the driving mechanism.

The specific structural composition, shape and size of the fourth transmission mechanism 107 are not limited, and may be reasonably selected according to practical application requirements. For example, the fourth transmission mechanism 107 may be a linear reciprocating cylinder disposed along the second horizontal direction, and a piston rod of the linear reciprocating cylinder is connected to the accessing mechanism 101, so that the piston rod may drive the accessing mechanism 101 to move along the second horizontal direction. For another example, the fourth transmission mechanism 107 may be a screw rod disposed along the second horizontal direction, one end of the screw rod is connected with an output shaft of a motor, the other end of the screw rod is in threaded connection with a nut, and the nut is connected with the access mechanism 101, so that when the output shaft of the motor rotates, the screw rod can be driven to rotate relative to the nut, so that the nut can drive the access mechanism 101 to move along the second horizontal direction. For another example, the fourth transmission mechanism 107 may be a gear and a rack that are engaged, wherein the rack is disposed along the second horizontal direction, an end face of the gear is connected to an output shaft of a motor, and a main body of the motor or the rack is connected to the access mechanism 101, so that when the output shaft of the motor rotates, the gear can rotate relative to the rack, so that the access mechanism 101 can move along the second horizontal direction.

Further, when the cryopreservation cartridge access means includes the third transmission mechanism 106 and the fourth transmission mechanism 107, in order to make the overall structure arranged more compact, it is preferable that the access mechanism 101 is provided on the first transmission mechanism 102, the first transmission mechanism 102 is provided on the third transmission mechanism 106, and the third transmission mechanism 106 is provided on the fourth transmission mechanism 107; alternatively, the access mechanism 101 is provided on the first transmission mechanism 102, the first transmission mechanism 102 is provided on the fourth transmission mechanism 107, and the fourth transmission mechanism 107 is provided on the third transmission mechanism 106.

When the first transmission mechanism 102 is arranged on the fourth transmission mechanism 107 and the fourth transmission mechanism 107 is arranged on the third transmission mechanism 106, the third transmission mechanism 106 drives the access mechanism 101, the first transmission mechanism 102 and the fourth transmission mechanism 107 to move along the first horizontal direction under the driving of the driving mechanism; the fourth transmission mechanism 107 drives the access mechanism and the first transmission mechanism to move along the second horizontal direction.

As can be seen from the description of the above embodiments of the present application, in the storage and retrieval device for a frozen storage box provided by the embodiments of the present application, when the output shaft of the sixth motor 306 rotates, the fourteenth driving wheel 1045 drives the first nut 1042 to rotate relative to the first screw 1041, so that the first screw 1041 drives the storage and retrieval mechanism 101 to move along the vertical direction; so that the access mechanism 101 can further move in a first horizontal direction perpendicular to the vertical direction to perform the access operation of the freezing storage box. Compared with the prior art, as the position of the access mechanism 101 is adjustable, the access mechanism 101 can be arranged outside the freezer with the low-temperature environment, which is beneficial to reducing the overall cost of the biological sample low-temperature storage device; and in the process of taking out the freezing box 203, other freezing boxes 203 on the freezing frame do not need to leave the low-temperature environment, so that the preservation effect of the freezing box in the low-temperature environment can be improved.

In addition, it should be noted that, in the embodiments of the present application, reference to movement in a certain direction does not refer to movement in a certain direction, but rather refers to movement in a certain direction in both directions. For example, referring to fig. 3, the vertical direction may be the z direction or the opposite direction in the coordinate system in the figure, and moving in the vertical direction means moving in the direction indicated by the z direction arrow in the figure or in the opposite direction; the first horizontal direction may be an x direction or a direction opposite thereto in the coordinate system in the figure, and moving in the first horizontal direction means moving in a direction indicated by an x direction arrow in the figure or a direction opposite thereto.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (10)

1. The storage and taking device for the frozen storage box is characterized by comprising a storage and taking mechanism, a driving mechanism and a first transmission mechanism, wherein the first transmission mechanism comprises a first screw, a first nut, a fourteenth transmission wheel and an eighth transmission belt; the driving mechanism comprises a sixth motor;

an output shaft of the sixth motor is connected with the end face of the fourteenth driving wheel; the fourteenth driving wheel and the first nut are arranged at intervals along the direction parallel to the horizontal plane, and the eighth driving belt is in driving fit with the outer peripheral surfaces of the fourteenth driving wheel and the first nut; the first screw rod is arranged in the vertical direction, one end of the first screw rod is connected with the access mechanism, and the first screw rod penetrates through the first nut and is in threaded connection with the first nut;

when the output shaft of the sixth motor rotates, the fourteenth driving wheel drives the first nut to rotate relative to the first screw rod, so that the first screw rod drives the access mechanism to move along the vertical direction.

2. The device of claim 1, wherein the drive mechanism further comprises a fifth motor; the storing and taking mechanism comprises a transmission assembly and a shovel plate, and the transmission assembly is respectively connected with an output shaft of the fifth motor and the shovel plate; when the output shaft of the fifth motor rotates, the transmission assembly drives the shovel plate to move along the first horizontal direction.

3. The device according to claim 2, wherein the first transmission mechanism further comprises an eighth rotation shaft; the eighth rotating shaft is arranged along the vertical direction and penetrates through the first screw rod; the first end of the eighth rotating shaft is connected with the output shaft of the fifth motor; the transmission assembly is respectively connected with the second end of the eighth rotating shaft and the shovel plate;

when the output shaft of the fifth motor rotates, the eighth rotating shaft is driven to rotate, so that the transmission assembly drives the shovel plate to move along the first horizontal direction.

4. A storage and retrieval device for a freezing storage box according to claim 3, wherein the transmission assembly comprises a twenty-second gear and a ninth rack, the second end of the eighth rotating shaft is connected with the end face of the twenty-second gear, the ninth rack is arranged along the first horizontal direction, the outer peripheral surface of the twenty-second gear is in transmission fit with the ninth rack, and the ninth rack is connected with the shovel plate.

5. A freezer access device according to claim 3, wherein the output shaft of the fifth motor is disposed in a vertical direction; and in the direction parallel to the horizontal plane, the eighth rotating shaft and the fifth motor are arranged in a stacked manner; the first transmission mechanism further comprises a twentieth transmission wheel, a twenty-first transmission wheel and a tenth transmission belt; the output shaft of the fifth motor is connected with the end face of the twentieth driving wheel, the twentieth driving wheel and the twenty-first driving wheel are arranged at intervals in the direction parallel to the horizontal plane, the tenth driving belt is sleeved on the outer peripheral surfaces of the twentieth driving wheel and the twenty-first driving wheel, and the twenty-first driving wheel is fixedly connected with the first end of the eighth rotating shaft;

When the output shaft of the fifth motor rotates, the twenty-first driving wheel and the eighth rotating shaft are driven to rotate by the twenty-first driving wheel through the tenth driving belt.

6. A freezer access device according to claim 3, wherein the access mechanism further comprises an access mount, a seventeenth sliding connection, and an eighteenth sliding connection; the seventeenth sliding connection part is in sliding connection with the eighteenth sliding connection part, and at least one of the seventeenth sliding connection part and the eighteenth sliding connection part is arranged along the first horizontal direction; the seventeenth sliding connection part is connected with the shovel plate, and the eighteenth sliding connection part is installed on the access installation frame.

7. The case access device of claim 2, wherein the drive assembly comprises a seventeenth gear, an eighteenth gear, a nineteenth gear, and a ninth drive belt; the output shaft of the fifth motor, the rotation axis of the seventeenth gear and the ninth transmission belt are all arranged along the first horizontal direction, the output shaft of the fifth motor is connected with the end face of the seventeenth gear, and the seventeenth gear is in transmission fit with the outer peripheral surface of the eighteenth gear; the end face of the eighteenth gear is connected with the end face of the nineteenth gear, and the rotation axes of the eighteenth gear and the nineteenth gear are arranged along a second horizontal direction; wherein the second horizontal direction is perpendicular to the first horizontal direction;

The ninth transmission belt is a chain and comprises a first end and a second end which are arranged along a first horizontal direction, and the heights of the first end and the second end of the ninth transmission belt in the vertical direction are different; the first end of the ninth transmission belt is in transmission fit with the peripheral surface of the nineteenth gear, and the second end of the ninth transmission belt is connected with the shovel plate.

8. The device of claim 7, wherein the access mechanism further comprises a third drive mount and an access mount; one side of the first end of the ninth transmission belt is movably connected with the third transmission mounting seat, and the other side of the first end of the ninth transmission belt is movably connected with the nineteenth gear and the access mounting frame.

9. The device according to claim 1, further comprising a third transmission mechanism and a fourth transmission mechanism connected to the drive mechanism, respectively; the first transmission mechanism is arranged on the fourth transmission mechanism, and the fourth transmission mechanism is arranged on the third transmission mechanism;

the third transmission mechanism drives the access mechanism, the first transmission mechanism and the fourth transmission mechanism to move along a first horizontal direction under the drive of the driving mechanism; the fourth transmission mechanism drives the access mechanism and the first transmission mechanism to move along a second horizontal direction; wherein the first horizontal direction is perpendicular to the second horizontal direction.

10. The device according to claim 1, further comprising a fifteenth drive wheel and a sixteenth drive wheel; the driving mechanism comprises a seventh motor; an output shaft of the seventh motor is connected with the end face of the fifteenth driving wheel, the fifteenth driving wheel is in driving fit with the outer peripheral face of the sixteenth driving wheel, the end face of the sixteenth driving wheel is connected with the access mechanism, and the rotation axis of the sixteenth driving wheel is parallel to the vertical direction.