CN218840616U - Hoisting device for freezing frame - Google Patents

Abstract

The utility model discloses a freeze and deposit frame hoisting device. The device is applied to biological sample access arrangement, and including freezing the frame in biological sample access arrangement, freezing a frame hoisting device and including: the telescopic part can perform at least two-stage telescopic motion along the vertical direction; the lifting part is connected with the telescopic part to move along the vertical direction under the driving of the telescopic part, and the lifting part is used for being matched with the freezing storage rack. Because the expansion part includes that at least two-stage is flexible, the expansion part can satisfy the stroke demand that the freezing frame goes up and down under the state of stretching out like this, and the length under the contraction state can reduce to reduce and occupy on vertical space.

Description

Hoisting device for freezing frame

Technical Field

The application relates to the technical field of biological samples, especially, relate to a freezing frame hoisting device.

Background

The biological sample access device can be a device for carrying out low-temperature refrigeration on the biological sample so as to ensure the activity of the biological sample. Generally, after a biological sample is collected, the biological sample is loaded into a cryopreservation tube, the cryopreservation tube is loaded into a sample box, and the sample box is loaded into a transfer barrel for storage and transportation. After the transportation barrel is transported to the destination, the sample box or the freezing tube in the transportation barrel needs to be automatically transported into the sample rack of the liquid nitrogen tank of the biological sample access device through the biological sample access device.

In-process from the sample frame access, need to deposit the frame with freezing in the sample frame and promote the height that suits to snatch, need set up hoisting device for this reason, and current hoisting device includes a guide rail and the clamping jaw of connection on the guide rail, the clamping jaw with deposit the frame with freezing and be connected, and drive and freeze and deposit the frame and reciprocate along the guide rail together, thereby realize freezing the promotion and the transfer of depositing the frame, but because the space height who is used for placing the sample in freezing the frame is higher, this length that just needs the guide rail is long enough, just can guarantee no matter where on freezing the frame is placed to the sample, all can propose it, in order to satisfy the promotion stroke of depositing the frame with freezing, current hoisting device need occupy very big vertical space.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the embodiment of the application provides a hoisting device for a freezing storage rack, so that the problem that the existing hoisting device occupies a large vertical space is solved.

According to the first aspect of this application embodiment, provide a freezing frame hoisting device, be applied to biological sample access equipment, including freezing the frame in the biological sample access equipment, freezing a frame hoisting device includes: the telescopic part can perform at least two-stage telescopic motion along the vertical direction; the lifting part is connected with the telescopic part to move along the vertical direction under the drive of the telescopic part, and the lifting part is used for being matched with the freezing storage rack.

Optionally, the telescopic part includes a first stage telescopic unit, the first stage telescopic unit includes a first bearing seat, a second bearing seat and a first telescopic mechanism, the first telescopic mechanism is connected between the first bearing seat and the second bearing seat, and drives the second bearing seat to move in the vertical direction relative to the first bearing seat.

Optionally, the first telescoping mechanism comprises: the eleventh driving motor is fixedly connected to the first bearing seat; the first chain wheel is connected with an output shaft of the eleventh driving motor; the second chain wheel is rotatably arranged on the first bearing seat; the first chain is sleeved on the first chain wheel and the second chain wheel and is fixedly connected with the second bearing seat through a fifth connecting block so as to drive the second bearing seat to move along the vertical direction.

Optionally, the first telescopic mechanism is arranged on a first side of the second bearing seat in a first direction parallel to the horizontal plane; and/or an eighth sliding rail extending along the vertical direction is arranged on the first bearing seat, an eighth sliding block is arranged on the second bearing seat, and the eighth sliding block is matched with the eighth sliding rail.

Optionally, the telescopic part includes a second-stage telescopic unit, the second-stage telescopic unit further includes a third bearing seat and a second telescopic mechanism, and the second telescopic mechanism is connected between the second bearing seat and the third bearing seat to drive the third bearing seat to move in the vertical direction relative to the second bearing seat.

Optionally, the second telescoping mechanism comprises: the third chain wheel is rotatably arranged on the second bearing seat; the fourth chain wheel is rotatably arranged on the second bearing seat; the second chain is sleeved on the third chain wheel and the fourth chain wheel and comprises a first chain section and a second chain section which are parallel to each other, the third chain wheel is located between the first chain section and the second chain section, the first chain section is fixedly connected with the third bearing seat through a sixth connecting block, and the second chain section is connected with the first bearing seat through a seventh connecting block.

Optionally, a sixth connecting block is connected to the upper end of the first chain segment and a seventh connecting block is connected to the lower end of the second chain segment.

Optionally, the lifting portion comprises: the twelfth driving motor is fixedly arranged on the telescopic part; the couple, the couple is connected on twelfth driving motor's output shaft to rotate under twelfth driving motor's drive, freeze and deposit and be provided with on the frame with couple complex couple hole, when the couple rotated the mating state, the couple can get into couple hole or with couple hole separation, when the couple rotated the mating state, the at least part of couple was backstopped by the object outside the couple hole.

Optionally, the hook is a T-shaped hook, and a cross bar of the T-shaped hook is located at one end far away from the twelfth driving motor; and/or, be connected with the second mounting panel on the couple, promote the portion and still include the locating pin, the locating pin is connected on the second mounting panel, and is used for and freezes the locating hole cooperation on depositing the frame.

Optionally, an output shaft of the twelfth driving motor is connected with a fourth contact piece, the fourth contact piece includes a first contact piece and a second contact piece that are perpendicular to each other, the lifting portion further includes seventh limit switches located on two sides of the output shaft of the twelfth driving motor, when a rotation angle of the twelfth driving motor is 0 °, the first contact piece section triggers the seventh limit switch located on the first side of the twelfth driving motor, and when the rotation angle of the twelfth driving motor is 90 °, the second contact piece section triggers the seventh limit switch located on the second side of the twelfth driving motor.

The flexible portion through freezing frame hoisting device of this application embodiment can drive the lifting portion and remove along vertical direction, because the flexible portion includes that at least two-stage is flexible, can satisfy the stroke demand that the freezing frame goes up and down under the flexible portion is in the state of stretching out like this, and the length under the shrink state can reduce to reduce the occupation on vertical space. The lifting part is used for being matched with the freezing storage frame, so that the freezing storage frame is driven to lift by the telescopic part.

Drawings

Fig. 1 is a schematic perspective view of a first viewing angle of a cryopreservation rack lifting device provided in an embodiment of the present application;

fig. 2 is a schematic perspective view of a second viewing angle of a cryopreservation rack lifting device provided in the embodiment of the present application;

fig. 3 is a schematic perspective view of a third viewing angle of a cryopreservation rack lifting device according to an embodiment of the present application;

fig. 4 is a schematic perspective view of a fourth viewing angle of a cryopreservation rack lifting device according to an embodiment of the present application;

fig. 5 is a schematic perspective view of a first view angle of a telescopic portion of a cryopreservation frame lifting device according to an embodiment of the present application;

fig. 6 is a schematic perspective view of a second perspective view of a telescopic portion of a cryopreservation frame lifting device according to an embodiment of the present application;

fig. 7 is a schematic perspective view of a third perspective view of a telescopic portion of a cryopreservation frame lifting device according to an embodiment of the present application;

fig. 8 is a schematic perspective view of a fourth perspective view of a telescopic portion of a cryopreservation frame lifting device according to an embodiment of the present application;

fig. 9 is a partial enlarged view of a portion of a lifting device of a cryopreservation stand according to an embodiment of the present application.

List of reference numerals:

42. freezing and storing the shelves; 81. a first mounting bracket; 812. a horizontal driving section; 813. a seventh slide rail; 82. a telescopic part; 821. a first bearing seat; 821a, an eighth slide rail; 822. a second bearing seat; 822a and an eighth slide block; 822b and a ninth slide rail; 823. an eleventh drive motor; 824. a first sprocket; 825. a second sprocket; 826. a first chain; 826a and a fifth connecting block; 827. a third bearing seat; 827a, a ninth slider; 828a, a third sprocket; 828b, a fourth sprocket; 828c, a second chain; 828d and a sixth connecting block; 828e and a seventh connecting block; 829. a seventh slider; 83. a lifting portion; 831. a twelfth driving motor; 832. hooking; 833. a second mounting plate; 834. positioning pins; 835. an eighth limit switch; 836. a fourth switch contact; 837. a seventh limit switch; 842. a second cover mounting bracket; 843. a first cover mounting bracket; 844. a first guide wheel; 845. a second cover body.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

Referring to fig. 1 to 9, the present application provides a lifting device for a cryopreservation rack, which is applied to a biological sample access device. In some examples, the biological specimen access device includes a transfer chamber (not shown) and a liquid nitrogen tank (not shown). The liquid nitrogen tank is used for storing the cryopreservation pipe at low temperature, and the cryopreservation pipe is used for containing biological samples. For example, be provided with the sample frame in the liquid nitrogen jar, the sample frame includes a plurality of cryopreserved framves, and the cryopreserved frame is used for placing the cryopreserved pipe. When freezing and depositing pipe or sample box, perhaps, take out from certain freezing and deposit the frame and freeze and deposit pipe or sample box, all need promote freezing and deposit the frame to freezing and deposit in the frame.

The existing hoisting device for the freezing frame needs to be longer in the vertical direction (such as the direction D1 in figure 3) in order to meet the hoisting stroke of the freezing frame, so that the space occupied by the whole hoisting device for the freezing frame is larger.

In order to solve the problem, the embodiment of the present application provides a lifting device for a cryopreservation rack, which is applied to a biological sample access device, the biological sample access device includes a cryopreservation rack 42, the lifting device for the cryopreservation rack includes a telescopic portion 82 and a lifting portion 83, the telescopic portion 82 can perform at least two-stage telescopic motion along a vertical direction (e.g., a direction D1 in fig. 3); the lifting portion 83 is connected with the telescopic portion 82 to move in a vertical direction (e.g., D1 direction in fig. 3) under the driving of the telescopic portion 82, and the lifting portion 83 is used for cooperating with the freezing rack 42.

This cryopreserved frame hoisting device's pars contractilis 82 is used for driving lift portion 83 to remove along vertical direction (as D1 direction in fig. 3), because pars contractilis 82 includes that at least two-stage is flexible, pars contractilis 82 can satisfy the stroke demand that cryopreserved frame goes up and down under the state of stretching out like this, and the length under the contraction state can reduce to reduce the occupation of space in vertical direction (as D1 direction in fig. 3). The lifting portion 83 is adapted to engage with the cryopreservation rack 42, so that the cryopreservation rack 42 is lifted by the driving of the expansion portion 82.

Wherein, two-stage flexible indicates that one part in the pars contractilis 82 can be driven and whole along vertical direction (as D1 direction in fig. 3) removal when another part is flexible, this part itself also can stretch out or shorten simultaneously, because pars contractilis 82 can carry out at least two-stage flexible, consequently when pars contractilis 82 needs to promote the cryopreserved frame 42, pars contractilis 82 can stretch out step by step, the length that stretches out satisfies the height that promotes the cryopreserved frame 42 required, then retract in order to promote the cryopreserved frame 42, even the pars contractilis 82 is lower in vertical direction (as D1 direction in fig. 3), also can have sufficient flexible stroke like this, thereby satisfy the promotion demand of cryopreserved frame 42, and effectively reduce the occupation of space in vertical direction (as D1 direction in fig. 3).

As shown in fig. 1, the cryopreservation rack lifting device of this embodiment further includes a first mounting rack 81, which can be fixed on a transfer chamber base (not shown) of the biological sample access device, and the transfer chamber base covers an opening of a liquid nitrogen tank of the biological sample access device. In order to facilitate the lifting of the freezing frame 42, an extraction opening (not shown in the figure) is arranged on the base of the conveying bin, and the freezing frame 42 enters and exits the liquid nitrogen tank through the extraction opening. The telescopic part 82 is movably provided on the first mounting bracket 81 in a first direction (D3 direction in fig. 3) parallel to the horizontal plane, so that the position of the telescopic part 82 can be adjusted as desired.

As shown in fig. 1 and 2, the telescopic portion 82 is provided with a first cover mounting bracket 843 and a second cover mounting bracket 842, and the second cover 845 is connected to the first cover mounting bracket 843 and the second cover mounting bracket 842 respectively.

Preferably, the side of the first cover mounting bracket 843 facing the cryopreservation stand 42 is provided with a plurality of first guide wheels 844.

Alternatively, the first mounting bracket 81 is disposed corresponding to the extraction opening of the transfer bin base so that the lifting part 83 moves above the extraction opening in the first direction (D3 direction in fig. 3). Since the first mount 81 is mounted at a position such that the lifting portion 83 can accurately reach directly above the extraction opening each time during the horizontal movement along the first mount 81, the arrangement of the driving assembly of the lifting portion 83 in the second direction (direction D2 in fig. 3) can be omitted by the arrangement of the position of the first mount 81 on the conveyance bin base.

In order to ensure that the temperature in the liquid nitrogen tank is low and avoid external heat from entering the liquid nitrogen tank to cause the activity of a biological sample, the heat-insulating cover is covered on the extraction opening, when the extraction opening needs to be opened, the heat-insulating cover is moved away through the heat-insulating cover opening module, the extraction opening is opened, and when the extraction opening does not need to be opened, the heat-insulating cover is covered on the heat-insulating cover opening module. In this embodiment, in order to reduce the space occupation, the cover opening module of the heat preservation cover is located below the first mounting frame 81.

The structure, the working process and the like of the device are described in the following with reference to the accompanying drawings:

in this embodiment, the expansion part 82 includes a first-stage expansion unit and a second-stage expansion unit, so if the total stroke length of the lifting cryopreservation frame 42 is L, the height of the space in the vertical direction (e.g., D1 direction in fig. 3) that needs to be occupied in the existing device is at least L, and in the present application, the space in the vertical direction (e.g., D1 direction in fig. 3) that needs to be occupied by the expansion part 82 can be smaller than L/2 through the two-stage expansion of the first-stage expansion unit and the second-stage expansion unit, for example, when the expansion part needs to expand, the first-stage expansion unit can extend, and the space in the vertical direction (e.g., D1 direction in fig. 3) that the second-stage expansion unit can move along with the whole extension of the first-stage expansion unit, and then the second-stage expansion unit can extend by itself, so that the required stroke L can be satisfied when the expansion part 82 extends, and the space in the vertical direction (e.g., D1 direction in fig. 3) that both the first-stage expansion unit and the second-stage expansion unit occupy when contracting can be contracted can be the length when the first-stage expansion unit is far smaller than the total stroke L. Of course, in other embodiments, if a larger lifting stroke is required, the telescopic portion 82 may include more telescopic units, so that the space occupied in the vertical direction (e.g., the direction D1 in fig. 3) can be further reduced.

As shown in fig. 3 to 8, the first-stage telescopic unit includes a first bearing seat 821, a second bearing seat 822 and a first telescopic mechanism, the first bearing seat 821 is movably disposed on the first mounting frame 81 along a first direction (D3 direction in fig. 3), the first telescopic mechanism is connected between the first bearing seat 821 and the second bearing seat 822, and drives the second bearing seat 822 to move in a vertical direction (D1 direction in fig. 3) relative to the first bearing seat 821. Thus, by moving the second bearing seat 822 in a vertical direction (e.g., direction D1 in fig. 3) relative to the first bearing seat 821, the connected lifting portion 83 can be driven to lift, so as to facilitate the connection between the lifting portion 83 and the cryopreservation frame 42, and drive the cryopreservation frame 42 to lift.

In this embodiment, the first bearing seat 821 is connected to the first mounting frame 81 through the aforementioned horizontal driving part 812. In order to ensure that the first bearing seat 821 can move smoothly, the first mounting frame 81 is further provided with a seventh sliding rail 813 extending along the first direction (D3 direction in fig. 3), the telescopic portion 82 is provided with a seventh sliding block 829, and the seventh sliding block 829 is matched with the seventh sliding rail 813.

The second carriage 822 is connected to the first carriage 821 through a first telescopic mechanism so as to be movable in a vertical direction (e.g., a direction D1 in fig. 3) relative thereto. For example, to ensure a stable transmission, the first telescoping mechanism includes an eleventh drive motor 823, a first sprocket 824, a second sprocket 825, and a first chain 826.

The eleventh driving motor 823 is fixedly connected to the first bearing seat 821; the first chain wheel 824 is connected with an output shaft of an eleventh driving motor 823; the second sprocket 825 is rotatably disposed on the first bearing seat 821; the first chain 826 is sleeved on the first sprocket 824 and the second sprocket 825, and the first chain 826 is fixedly connected to the second carrying seat 822 through a fifth connecting block 826a to drive the second carrying seat 822 to move along a vertical direction (e.g., a direction D1 in fig. 3).

Optionally, the first telescopic mechanism is disposed at a first side of the second bearing seat 822 in a first direction (D3 direction in fig. 3) parallel to the horizontal plane, so as to facilitate the connection between the first bearing seat 821 and the second bearing seat 822 through the first telescopic mechanism, and by horizontally disposing the first bearing seat 821, the first telescopic mechanism and the second bearing seat 822, because the space in the first direction (D3 direction in fig. 3) is wider, the connection between the first bearing seat 821, the first telescopic mechanism and the second bearing seat 822 is more convenient.

Optionally, in order to ensure that the second bearing seat 822 moves smoothly and stably in the vertical direction, an eighth sliding rail 821a extending in the vertical direction (e.g., the direction D1 in fig. 3) is disposed on the first bearing seat 821, an eighth sliding block 822a is disposed on the second bearing seat 822, and the eighth sliding block 822a is engaged with the eighth sliding rail 821 a.

In this embodiment, the second stage expansion unit of the expansion part 82 further includes a third carrying seat 827 and a second expansion mechanism, and the second expansion mechanism is connected between the second carrying seat 822 and the third carrying seat 827 to drive the third carrying seat 827 to move in a vertical direction (e.g., a direction D1 in fig. 3) relative to the second carrying seat 822, so that the third carrying seat 827 can move relative to the second carrying seat 822.

Optionally, in order to save space, the second telescopic mechanism is disposed at the second side of the second carrying seat 822 in the first direction (direction D3 in fig. 3), so that the free space in the first direction (direction D3 in fig. 3) parallel to the horizontal plane can be fully utilized, and the space occupation in the second direction (direction D2 in fig. 3) can be reduced as much as possible.

In some examples, the second telescoping mechanism includes a third sprocket 828a, a fourth sprocket 828b, and a second chain 828c. The third sprocket 828a is rotatably disposed on the second carrier seat 822; the fourth sprocket 828b is rotatably disposed on the second carrier seat 822; the second chain 828c is sleeved on the third chain wheel 828a and the fourth chain wheel 828b, the second chain 828c comprises a first chain section and a second chain section which are parallel to each other, the third chain wheel 828a is positioned between the first chain section and the second chain section, the first chain section is fixedly connected with the third bearing seat 827 through the sixth connecting block 828d, and the second chain section is connected with the first bearing seat 821 through the seventh connecting block 828 e. This allows the third loading seat 827 to be reliably lifted and lowered.

As shown in FIG. 5, a sixth link block 828d is attached to the upper end of the first chain segment, and a seventh link block 828e is attached to the lower end of the second chain segment. In this way, in the process that the eleventh driving motor 823 rotates to drive the second carrier seat 822 to move, because the third sprocket 828a and the fourth sprocket 828b are respectively rotatably disposed on the second carrier seat 822, and the second chain 828c is limited on the first carrier seat 821 by the seventh connecting block 828e, when the second carrier seat 822 moves, the second carrier seat 822 can drive the third sprocket 828a and the fourth sprocket 828b to rotate, and the third sprocket 828a and the fourth sprocket 828b rotate while the second chain 828c rotates around the third sprocket 828a and the fourth sprocket 828b, and the second chain 828c is connected with the third carrier seat 827 by the sixth connecting block 828d, so that the second chain 828c can drive the third carrier seat 827 to move in the same direction with respect to the second carrier seat 822, for example, when the second carrier seat 822 moves downwards, the third carrier seat 827 also moves downwards, and when the second carrier seat 822 moves upwards, the third carrier seat 827 also moves upwards.

Optionally, in order to make the third carrying seat 827 move smoothly, a ninth sliding rail 822b extending in a vertical direction (e.g., a direction D1 in fig. 3) is disposed on the second carrying seat 822, and a ninth sliding block 827a engaged with the ninth sliding rail 822b is disposed on the third carrying seat 827.

Optionally, in order to be able to quickly and stably cooperate with the cryopreservation rack 42, so as to implement connection and lifting of the cryopreservation rack 42, the lifting part 83 includes a twelfth driving motor 831 and a hook 832, and the twelfth driving motor 831 is fixedly installed on the telescopic part 82; the hook 832 is connected to an output shaft of the twelfth driving motor 831 to rotate under the driving of the twelfth driving motor 831, a hook hole matched with the hook 832 is formed in the cryopreservation frame 42, when the hook 832 rotates to a matched state, the hook 832 can enter the hook hole or be separated from the hook hole, and when the hook 832 rotates to a matched state, at least part of the hook 832 is stopped by an object outside the hook hole.

This lifting part 83 is when the cryopreserved frame 42 is connected to needs, and the pars contractilis 82 stretches out and draws back to sufficient length, and twelfth driving motor 831 drive couple 832 rotates to the cooperation state, and couple 832 stretches into in the couple hole of cryopreserved frame 42, then twelfth driving motor 831 drive couple 832 rotates away from this cooperation state to make lifting part 83 and cryopreserved frame 42 connect, later the pars contractilis 82 rises, thereby realizes the promotion of cryopreserved frame 42.

In some examples, the hook 832 is a T-hook, and a cross bar of the T-hook is located at an end distal from the twelfth drive motor 831. The hook hole on the cryopreservation frame 42 can be a special-shaped hole with the outline equivalent to that of the T-shaped hook, so that when the T-shaped hook is inserted into the special-shaped hole, the T-shaped hook is rotated to enable the T-shaped hook and the special-shaped hole to be staggered, the T-shaped hook is hung in the special-shaped hole, and the mutual connection with the cryopreservation frame 42 is realized.

Optionally, be connected with second mounting panel 833 on the couple 832, promote portion 83 and still include locating pin 834, and locating pin 834 is connected on second mounting panel 833, and is used for cooperating with the locating hole on the cryopreserving frame 42, through the cooperation of locating pin 834 and locating hole, realizes the location before snatching, can promote and snatch efficiency.

Of course, in other embodiments, the lifting portion 83 may capture the cryopreservation on stand 42 in other configurations, such as using a cylinder gripper, without limitation.

Optionally, in order to detect whether the cryopreservation rack 42 is connected in place, an eighth limit switch 835 is further disposed on the second mounting plate 833, and the eighth limit switch 835 is used to detect whether the cryopreservation rack 42 contacts the eighth limit switch 835.

Optionally, in order to determine whether the hook 832 rotates in place to facilitate the control of the hook 832 to be connected to or separated from the cryopreservation rack 42, a fourth switch contact 836 is connected to an output shaft of the twelfth driving motor 831, the fourth switch contact 836 includes a first contact section and a second contact section which are perpendicular to each other, the lifting portion 83 further includes seventh limit switches 837 positioned at both sides of the output shaft of the twelfth driving motor 831, when a rotation angle of the twelfth driving motor 831 is 0 °, the first contact section triggers the seventh limit switch 837 positioned at a first side of the twelfth driving motor 831, and when a rotation angle of the twelfth driving motor 831 is 90 °, the second contact section triggers the seventh limit switch 837 positioned at a second side of the twelfth driving motor 831. By the mode, the T-shaped hook can be prevented from rotating too much, so that the T-shaped hook can not hang the special-shaped hole of the cryopreservation frame 42.

Of course, in other embodiments, the twelfth driving motor 831 may adopt a servo motor, that is, the rotation speed of the servo motor is set in advance according to the movement stroke of the T-shaped hook.

The working process of the device is described as follows with reference to the attached drawings:

as shown in fig. 1 to 4, when the freezing rack 42 needs to be lifted, the horizontal driving part 812 drives the telescopic part 82 to move above the extraction opening in the first direction (direction D3 in fig. 3). The eleventh driving motor 823 on the first bearing seat 821 of the telescopic portion 82 rotates to drive the first chain 826 to move, so as to drive the second bearing seat 822 to vertically move downwards relative to the first bearing seat 821 through the fifth connecting block 826a on the first chain 826.

During the downward movement of the second bearing seat 822, the third and fourth sprockets 828a and 828b of the second telescopic mechanism on the second bearing seat 822 can move together along the vertical direction (e.g., the direction D1 in fig. 3), because the seventh connecting block 828e on one side of the second chain 828c is connected to the first bearing seat 821, the seventh connecting block 828e cannot move when the third and fourth sprockets 828a and 828b move, and because the distance between the third and fourth sprockets 828a and 828b is not changed, the sixth connecting block 828D on the other side of the second chain 828c can drive the third bearing seat 827 to move downward, so that the lifting part 83 on the third bearing seat 827 can pass through the extraction opening.

The hooks 832 on the lifting portion 83 extend into the hook holes of the cryopreservation rack 42. When lowered to the right position, the twelfth driving motor 831 rotates to drive the hook 832 to rotate, so that the hook 832 is stopped to be connected with the cryopreservation rack 42. After connection, the telescoping section 82 retracts back upward, thereby lifting the cryopreservation rack 42.

It should be noted that not all steps and modules in the above flows and system structure diagrams are necessary, and some steps or modules may be omitted according to actual needs. The execution sequence of the steps is not fixed and can be adjusted according to the needs. The system structure described in the above embodiments may be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by a plurality of physical entities, or some components in a plurality of independent devices may be implemented together.

In the above embodiments, the hardware module may be implemented mechanically or electrically. For example, a hardware module may comprise permanently dedicated circuitry or logic (such as a dedicated processor, FPGA or ASIC) to perform the corresponding operations. A hardware module may also include programmable logic or circuitry (e.g., a general-purpose processor or other programmable processor) that may be temporarily configured by software to perform the corresponding operations. The specific implementation (mechanical, or dedicated permanent, or temporarily set) may be determined based on cost and time considerations.

While the present application has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present application.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. The utility model provides a cryopreserved frame hoisting device, its characterized in that is applied to biological sample access apparatus, including cryopreserved frame (42) in the biological sample access apparatus, cryopreserved frame hoisting device includes:

a telescopic section (82), wherein the telescopic section (82) can be stretched and contracted in at least two stages along the vertical direction;

a lifting part (83), the lifting part (83) is connected with the telescopic part (82) to move along the vertical direction under the driving of the telescopic part (82), and the lifting part (83) is matched with the freezing rack (42).

2. The freezeout frame lifting device of claim 1, wherein the telescoping section (82) comprises a first stage telescoping unit comprising a first bearing seat (821), a second bearing seat (822) and a first telescoping mechanism connected between the first bearing seat (821) and the second bearing seat (822) and driving the second bearing seat (822) to move in a vertical direction relative to the first bearing seat (821).

3. The cryopreservation rack lifting device of claim 2, wherein the first telescoping mechanism comprises:

the eleventh driving motor (823) is fixedly connected to the first bearing seat (821);

a first sprocket (824), the first sprocket (824) being connected to an output shaft of the eleventh drive motor (823);

a second sprocket (825), the second sprocket (825) being rotatably disposed on the first carrier seat (821);

the first chain (826) is sleeved on the first chain wheel (824) and the second chain wheel (825), and the first chain (826) is fixedly connected with the second bearing seat (822) through a fifth connecting block (826 a) so as to drive the second bearing seat (822) to move along the vertical direction.

4. The freezeframe lifting device of claim 3,

the first telescopic mechanism is arranged on a first side of the second bearing seat (822) in a first direction parallel to the horizontal plane; and/or the presence of a gas in the atmosphere,

the first bearing seat (821) is provided with an eighth sliding rail (821 a) extending along the vertical direction, the second bearing seat (822) is provided with an eighth sliding block (822 a), and the eighth sliding block (822 a) is matched with the eighth sliding rail (821 a).

5. The cryopreservation rack lifting device according to any one of claims 2 to 4, wherein the telescopic part (82) comprises a second stage telescopic unit, the second stage telescopic unit further comprising a third carrying seat (827) and a second telescopic mechanism, the second telescopic mechanism being connected between the second carrying seat (822) and the third carrying seat (827) to drive the third carrying seat (827) to move in the vertical direction relative to the second carrying seat (822).

6. The cryopreservation rack lifting device of claim 5, wherein the second telescoping mechanism comprises:

a third sprocket (828 a), the third sprocket (828 a) rotatably disposed on the second carrier seat (822);

a fourth sprocket (828 b), the fourth sprocket (828 b) rotatably disposed on the second carrier seat (822);

the second chain (828 c) is sleeved on the third chain wheel (828 a) and the fourth chain wheel (828 b), the second chain (828 c) comprises a first chain section and a second chain section which are parallel to each other, the third chain wheel (828 a) is located between the first chain section and the second chain section, the first chain section is fixedly connected with the third bearing seat (827) through a sixth connecting block (828 d), and the second chain section is connected with the first bearing seat (821) through a seventh connecting block (828 e).

7. The freezers lifting device of claim 6, wherein said sixth connecting block (828 d) is connected at the upper end of said first chain section and said seventh connecting block (828 e) is connected at the lower end of said second chain section.

8. The freezeframe lifting device in accordance with any of claims 1-4, characterized in that the lifting portion (83) comprises:

a twelfth driving motor (831), wherein the twelfth driving motor (831) is fixedly installed on the telescopic part (82);

the hanger (832), couple (832) are connected on the output shaft of twelfth driving motor (831), in order to rotate under the drive of twelfth driving motor (831), be provided with on the cryopreserving frame (42) with couple (832) complex couple hole, when couple (832) rotate to the cooperation state, couple (832) can get into the couple hole or with couple hole separation, when couple (832) rotate from the cooperation state, the at least part of couple (832) receives the backstop of the object outside the couple hole.

9. The freezeframe lifting device of claim 8, wherein said hook (832) is a T-hook with its cross bar at the end remote from said twelfth drive motor (831); and/or, be connected with second mounting panel (833) on couple (832), promote portion (83) and still include locating pin (834), locating pin (834) are connected on second mounting panel (833), and be used for with the locating hole cooperation on freezing frame (42).

10. The freezer lift of claim 8, wherein the twelfth drive motor (831) has a fourth switch contact plate (836) connected to an output shaft thereof, the fourth switch contact plate (836) includes a first contact section and a second contact section which are perpendicular to each other, the lift portion (83) further includes seventh limit switches (837) disposed at both sides of the output shaft of the twelfth drive motor (831), the first contact plate section activates the seventh limit switch (837) disposed at a first side of the twelfth drive motor (831) when the rotation angle of the twelfth drive motor (831) is 0 °, and the second contact plate section activates the seventh limit switch (837) disposed at a second side of the twelfth drive motor (831) when the rotation angle of the twelfth drive motor (831) is 90 °.

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