CN207404320U - Biological sample low temperature extraction system - Google Patents

Abstract

The utility model discloses a kind of biological sample low temperature extraction systems, belong to biological sample low temperature extractive technique field, access the second manipulator of sample box including the in vivo sample storage rack of cover, tank on tank body, tank body and to sample storage rack, sample box is shifted for placement and be arranged on the in vivo sample box Zan Zhi areas of tank, the first manipulator outside tank body；Cover offers extraction mouth, and extraction mouth is combined with capping；For sample storage rack rotating support in tank body, sample storage rack includes the multiple row unit frame on chassis and chassis.Entire sample extraction process is carried out in tank body, and tank body provides good low temperature environment for sample to be deposited in the sample in sample storage rack and transfer sample box, has ensured the excellent activity of sample.

Description

Biological sample low temperature extraction system

Technical field

The utility model is related to biological sample low temperature extractive technique field, in particular to a kind of biological sample low temperature Extraction system.

Background technology

The long-term storage of biological sample reduces the biochemical reaction in sample usually using alap temperature, improves sample The stability of various composition in this, temperature is lower, and the holding time of sample is longer.Typically freeze-stored cell is placed in sample tube In, sample tube is placed in storage rack, is integrally placed at by storage rack in liquid nitrogen container, to realize the preservation steady in a long-term of sample.

At present, it is necessary to take out corresponding sample box on liquid nitrogen container memory storage frame to liquid nitrogen container when into line access sample Outside, such as it is fetched into other regions outside equipment or in equipment；The sample tube in sample box is removed or need to deposited again The sample tube entered is put into sample box, realizes access, finally the sample box of the taking-up is returned in liquid nitrogen container again.Although sample This storage is in liquid nitrogen container, but entire extraction process has left sample storage environment all in external environment, to sample activity It is impacted with quality.

Utility model content

The purpose of this utility model is to provide a kind of biological sample low temperature extraction system, with solve non-cryogenic environment into Row sample extraction and the problem of influence sample quality.

For realize the utility model aim, the technical solution used for：Biological sample low temperature extraction system, including tank body, The in vivo sample storage rack of cover, tank on tank body and the second manipulator to sample storage rack access sample box, for placing Transfer sample box is simultaneously arranged on the in vivo sample box Zan Zhi areas of tank, the first manipulator outside tank body；Cover offers extraction mouth, carries Mouth is taken to be combined with capping；For sample storage rack rotating support in tank body, sample storage rack includes the multiple row list on chassis and chassis First frame.

Further, second manipulator includes horizontal pumping board, the pumping board driving device of driving pumping board translation.

Further, second manipulator further includes bottom plate, is moved radially on bottom plate along sample storage rack and is provided with cunning Plate, pumping board are arranged on slide plate, and the moving direction of pumping board is vertical with the moving direction of slide plate.

Further, the unit frame hoisting mechanism above extraction mouth is further included, unit frame hoisting mechanism includes traversing Plate slides vertically and is arranged on traversing plate and promotion connector corresponding with unit frame.

Further, intermediate plate is provided between the traversing plate and promotion connector, intermediate plate, which slides vertically, to be arranged at Traversing plate, promotion connector, which slides vertically, is arranged at intermediate plate；Between plate top have support be pressed against promoted connector on Pendant；The both ends that intermediate plate lifting is corresponded on traversing plate are respectively and fixedly provided with intermediate plate locating part.

Further, the unit frame hoisting mechanism further includes unit frame guide part, and unit frame guide part includes corresponding to Clamp arm on the outside of unit frame, clamp arm are fixed on traversing plate；Rotating support has multiple rollings contacted with unit frame alien invasion in clamp arm Moving part.

Further, first manipulator is connected with grip device, and grip device includes what is be connected with the first manipulator Quick change bindiny mechanism and the sample holder being connected with quick change bindiny mechanism, sample holder include sample box fixture and test tube fixture.

The advantageous effect of utility model is to pick and place the sample to be removed that low temperature is accessed in tank in target sample box to transfer The sample to be deposited accessed in sample box or by low temperature in tank in transfer sample box is picked and placeed into target sample box, entire sample This extraction process is carried out in tank body, and tank body is sample to be deposited in sample and transfer sample box in sample storage rack Originally good profound hypothermia environment is provided, ensures the excellent activity of sample；Realize sample storage and extraction all can less than- 135 DEG C of profound hypothermia environment carries out, and ensure that the more excellent quality of sample, avoids sample taking-up tank body and enters non-cryogenic ring Border carries out transfer extraction and causes the influence to sample quality.

Description of the drawings

Fig. 1 is the structural representation for the biological sample low temperature extraction system that the utility model embodiment provides；

Fig. 2 is the structure diagram of tank interior in Fig. 1；

Fig. 3 is the structure diagram of the second manipulator；

Fig. 4 is the partial top view of the second manipulator；

Fig. 5 is the top view of tank base；

Fig. 6 is unit frame hoisting mechanism structure diagram；

Fig. 7 is the structure diagram of unit frame guide part；

Fig. 8 is the structure diagram of the grip device of the first manipulator；

Fig. 9 is the structure diagram of quick change bindiny mechanism；

Figure 10 is the structure diagram of sample box fixture；

Figure 11 is the structure diagram of the test tube fixture with pressure pipe structure；

Figure 12 is the sectional view at quick change bindiny mechanism fixing sleeve；

Figure 13 is the structure diagram of test tube fixture；

Reference numeral：

100- tank bodies, 101- covers, 102- extraction mouths, 103- cappings, 104- cap-opening mechanisms, 105- metal layers, 106- are protected Warm layer, 107- sample storage racks, 108- chassis, 109- unit framves, 110- sample box, 111- balls, 112- bottoms rib, 113- balls Frame, 114- test tubes；

The first manipulators of 200-, 201- quick changes bindiny mechanism, 202- sample holders, 203- connecting plates, 204- fixture slide blocks, 205- clamp arm, 206- compression springs, 207- inserting grooves, 208- clamping faces, 209- installing plates, the first clamping jaws of 210-, 211- second Clamping jaw, 212- positioning pins, 213- location holes, 214- fixing sleeves, 215- movable parts, 216- discharging springs, 217- connectors, 218- Guide rod, 219- pressure heads, 220- adjustable springs；

The second manipulators of 300-, 301- sample box Zan Zhi areas, 302- pumping boards, 303- pumping board driving devices, 304- bottom plates, 305- slide plates, 306- promotion limiting through hole, 307- guide ribs, 308- section of stretching out, 309- construction sections, 310- sample box ribs, 311- sample box position limiting structures, 312- sample box bolsters, 313- sample box limiting plates, 314- slide board drive devices, 315- samples This box locating piece, 316- positioning side；

400- unit frame hoisting mechanisms, the traversing plates of 401-, 402- cross sliding driving devices, 403- promote connector, and 404- is erected To driving device, 405- magnets, 406- unit frame guide parts, 407- guid arms, 408- rolling members, 409- supporting racks, 410- items Shape hole, 411- intermediate plates, 412- pendants, 413- intermediate plate locating parts, 414- promote connector locating part, 415- guide rails, 416- Drive sprocket, 417- drive sprockets, 418- chains.

Specific embodiment

The utility model is further described in detail below through specific implementation examples and in conjunction with the accompanying drawings.

Fig. 1 to Figure 13 shows the biological sample low temperature extraction system that the utility model embodiment provides, including tank body 100th, cover 101 on tank body 100, the sample storage rack 107 in tank body 100 and sample box is accessed to sample storage rack 107 Second manipulator 300, for place transfer sample box and be arranged in tank body 100 sample box Zan Zhi areas 301, outside tank body 100 The first manipulator 200；Cover 101 offers extraction mouth 102, and extraction mouth 102 is combined with capping 103；107 turns of sample storage rack Dynamic to be supported in tank body 100, sample storage rack 107 includes the multiple row unit frame 109 on chassis 108 and chassis 108.

Second manipulator 300 can be located at the top of sample storage rack 107 in tank body 100, set and carried using upper space It takes.Second manipulator 300 can be fixedly attached to cover 101.Second manipulator 300 includes horizontal pumping board 302, driving pumping board The pumping board driving device 303 of 302 translations extend out to 110 lower section of sample box using pumping board 302, sample box 110 is made to drop down onto pumping board On 302, pumping board 302 accepts sample box 110, sample box 110 is removed unit frame 109, fast and easy, and pumping board 302 is held It is simple to connect mode, it is simple in structure effective, it is at low cost, it takes up space small.The manipulator of purchase can also be used, sample box 110 is taken Go out unit frame 109.

Second manipulator 300 further includes bottom plate 304, is moved radially on bottom plate 304 along sample storage rack 107 and is provided with slide plate 305, pumping board 302 is arranged on slide plate 305, and the moving direction of pumping board 302 is vertical with the moving direction of slide plate 305.Pass through cunning Plate 305 moves radially to realize that pumping board 302 is moved to any position, is corresponded to from different unit framves 109, realizes different lists Sample box 110 in first frame 109 removes.Bottom plate 304 can be fixed on 101 lower end of cover by rod piece.

One side on bottom plate 304 positioned at slide plate 305 is offered along the radially-arranged multiple promotion /Vs of sample storage rack 107 Through hole 306 promotes the adaptation corresponding with unit frame 109 of limiting through hole 306, plays position-limiting action, pumping board 302 extend out to promotion /V Sample box 110 is picked and placeed in the unit frame 109 of through hole 306.304 upper and lower surface of bottom plate for promoting 306 edge of limiting through hole is set There are guide ribs 307, guide ribs 307 have the guiding conical surface, i.e. guidance unit frame 109 is smooth through promotion limiting through hole 306.It does not set When putting promotion limiting through hole 306, the unit frame 109 of sample storage rack 107 is directly promoted in 305 side of slide plate, without /V Its structure carries out the sample box 110 in sample storage rack 107 still through above-mentioned action and picks and places, sees Fig. 4.Pumping board 302 can phase It is relatively narrow for sample box 110, it conveniently stretches into 110 lower section of sample box and picks and places.

Sample box Zan Zhi areas 301 are arranged on slide plate 305, the sample box 110 that pumping board 302 removes and sample box Zan Zhi areas 301 Sample box 110 on slide plate 305, pumping board 302 any position remove sample box 110 when, the sample in sample box Zan Zhi areas 301 This box 110 all nearby, not only reduces occupied space, and the extraction shifting of test tube 114 also allowed between the two sample box 110 is put.

Pumping board 302 is integral structure or Split type structure, can include section of stretching out 308 and coupled construction section 309, section of stretching out 308 is one end towards 109 side of external unit frame.The section of stretching out 308 and construction section 309 of pumping board 302 are removable The Split type structure of connection is unloaded, facilitates the connection installation of the two, different sample box 110 can be matched and replace different pumping boards 302.Section of stretching out 308 free end has sample box rib 310, when so that moving process and the pumping board 302 is returned on slide plate 305, sample box 110 Stabilization does not drop.

The sample box position limiting structure 311 positioned at 302 outside of pumping board is provided on slide plate 305, sample is removed for pumping board 302 Box 110 in place when positioning and /V, to ensure the stop place of the sample box 110 removed from unit frame 109, it is convenient follow-up such as First manipulator 200 accurately picks and places test tube 114.

Sample box position limiting structure 311 may include sample box bolster 312 and sample box limiting plate 313.The two is in mutual Plumbness, sample box bolster 312 away from the one side that external part is moved outside pumping board 302, that is, are corresponded in sample box on slide plate 305 110 on pumping board 302 when being moved on slide plate 305, when approaching the limit position of setting, by sample box bolster 312 to sample box 110 play cushioning effect, avoid direct rigid collision and influence the test tube 114 in sample box 110.With 310 shape of sample box rib Into positioning of the sample box 110 on direction is removed.Sample box limiting plate 313 is moved in the one side of pumping board 302 and along pumping board 302 Direction is set.

Slide plate 305 connects slide board drive device 314.One of pumping board driving device 303 and slide board drive device 314 or The two is gear-rack drive mechanism, can also use other driving components of such as cylinder, motor leading screw.Sample box is temporarily put Area 301 is provided with sample box locating piece 315, and the transfer sample box being placed into tank body 100 is positioned.Sample box locating piece 315 include corresponding on several positioning sides 316 of sample box outer rim.Extraction mouth 102 can be corresponded at the second manipulator 300, covered 103 are connected with cap-opening mechanism 104, mechanically open.Cover 101 includes metal layer 105 and insulating layer setting up and down 106, capping 103 is alternatively the structure.Second manipulator 300 can be arranged at the insulating layer 106 of extraction mouth 102.

The system further includes the unit frame hoisting mechanism 400 positioned at 102 top of extraction mouth, and unit frame hoisting mechanism 400 wraps Include traversing plate 401, slide vertically be arranged on traversing plate 401 and it is corresponding with unit frame 109 promotion connector 403.Pass through horizontal stroke Moving plate 401 and being moved to needs 109 top of the unit frame promoted, promotes connector 403 and is connected with unit frame 109 by unit frame 109 Lift.It can be absorption type to promote connector 403, such as promoted connector 403 bottom surface have absorbing unit frame 109 magnet 405 or It is the connection structures such as clip type, realizes the connection for promoting connector 403 and unit frame 109.

Unit frame hoisting mechanism 400 further includes unit frame guide part 406, and corresponding in 109 periphery of unit frame, unit frame is oriented to Part 406 includes the corresponding guid arm 407 in 109 outside of unit frame, and guid arm 407 is fixed on traversing plate 401；On guid arm 407 Rotating support has multiple rolling members 408 contacted with 109 alien invasion of unit frame.Remain unit frame 109 in lifting process The movement of one locational space, will not shake beat, and ensure that unit frame 109 stablizes promotion, also ensure from unit When picking and placeing sample box 110 in frame 109, accurate latched position, unit frame 109 will not rock.Rolling member 408 is idler wheel or bearing Deng being in rolling contact /V and guiding by rolling member 408 and unit frame 109.

Guid arm 407 can be U-shaped, and sample box 110 picks and places side in open side, that is, corresponding unit frame 109.Rolling member 408 wraps X is included to rolling member and Y-direction rolling member, X is vertical to the axial direction of rolling member and the U-shaped opening direction of guid arm 407, then Y-direction rolls Part is axially vertical with X phase rolling members；X is to rolling member correspondence in the opposite both sides of unit frame 109 1, Y-direction rolling member pair Should realize the /V of both direction in another opposite both sides of unit frame 109, X to the periphery of rolling member and Y-direction rolling member it Between form unit frame limition orientation space, mobile to stablize, resistance is small.Each rolling member 408 is corresponding with supporting rack 409, rolling member 408 are installed on supporting rack 409.Bar hole 410 can be opened up on supporting rack 409, guiding is fixed to through bar hole 410 by screw On arm 407.

Intermediate plate 411 is provided between traversing plate 401 and promotion connector 403, intermediate plate 411, which slides vertically, is arranged at horizontal stroke Plate 401 is moved, promotion connector 403, which slides vertically, is arranged at intermediate plate 411；Between plate top have support be pressed against promotion connection Pendant 412 on first 403；The both ends that the lifting of intermediate plate 411 is corresponded on traversing plate 401 are respectively and fixedly provided with intermediate plate locating part 413, increase Add and promoted the stroke that connector 403 lifts.Cross sliding driving device 402 drives traversing plate 401 to be moved on corresponding units frame 109 Side during decline, promotes connector 403 and declines under the driving of vertical drive 404, intermediate plate 411 is made due to gravity With promotion connector 403 is followed to decline together, when being down to intermediate plate locating part 413, intermediate plate 411 is pressed on centre due to gravity No longer decline on plate locating part 413, promote connector 403 at this time and moved down compared with intermediate plate 411, continue to decline, meet and promoted The big stroke of connector 403.It is then band when promoting connector 403 to rise to the pendant 412 of intermediate plate 411 in uphill process Dynamic intermediate plate 411 continues to rise, and when intermediate plate 411 rises to the intermediate plate locating part 413 of top, that is, outreach stroke.It carries Jacking block of the correspondence under pendant 412 can individually be fixed by rising the top of connector 403.Intermediate plate 411 with promoted connector 403, And guide rail 415 is respectively provided between intermediate plate 411 and traversing plate 401, it is oriented to its lifting.

The corresponding lower end for promoting the lifting of connector 403, which is fixed with, on intermediate plate 411 promotes connector locating part 414, is used for When limitation promotion connector 403 is moved down compared with intermediate plate 411, the /V of lower end stroke.Vertical drive 404 includes Motor, the drive sprocket 416 for being fixedly connected on motor output end, rotating support 401 top of traversing plate drive sprocket 417, The chain 418 being engaged on jointly on drive sprocket 416 and drive sprocket 417, one end of chain 418 are connected to promotion connector 403, the other end is connected to upper motor installation place through drive sprocket 417 and drive sprocket 416 so that the other end of chain 418 In a high position, chain 418 is outstanding to be set, and the heap for avoiding chain 418 falls, and it is small to occupy its upper side space.Cross sliding driving device 402 can be the driving structure of motor screw mechanism etc..

Clearly to show overall structure, three unit framves 109 in sample storage rack 107 are only illustrated in figure.Tank body 100 Interior bottom is provided with multiple balls 111 contacted with 108 bottom surface of chassis.Bottom in tank body 100 can set what is be circumferentially arranged Bottom rib 112 is fixed for installing on bottom rib 112 ball rack 113 of ball 111, enhances 100 polycrystalline substance intensity of tank body, right Sample storage rack 107 provides stable support.During use after the installation of sample storage rack 107, ball 111, which is contacted to sample, to be deposited Storage to the support that the bottom surface on chassis 108 is aided in, and when sample storage rack 107 rotates, still is able to provide and stablizes branch Support, frictional force is small, reduces the rotational resistance on chassis 108.Multiple balls 111 are two circles arranged outside center, and that often encloses is multiple Ball 111 is circumferential uniformly distributed, in favor of rotationally supporting for chassis 108.

First manipulator 200 is connected with grip device, and grip device includes the quick change being connected with the first manipulator 200 connection Mechanism 201 and the sample holder 202 being connected with quick change bindiny mechanism 201, sample holder 202 include sample box fixture and test tube clamp Tool.When fetching and delivering sample box 110 from low temperature access tank, the first manipulator 200 connection sample box fixture utilizes the first manipulator 200 When carrying out target sample box and shifting the sample extraction between sample box, test tube fixture is connected, is switched fast, when reducing extraction process Between.

Sample box fixture and test tube fixture include connecting plate 203, in opposite two folders for sliding setting in 203 lower end of connecting plate Has sliding block 204, two fixture slide blocks 204 are fixedly installed clamp arm 205, and compression spring 206 is connected between two clamp arm 205；Two Inserting groove 207 is respectively provided in clamp arm 205.By stretching into inserting groove 207 relative movement of two clamp arm 205 is driven to realize sample box 110 or the clamping of test tube 114.The opposite face of two clamp arm 205 is clamping face 208, the clamping face of clamp arm 205 in sample box fixture 208 be with 110 matched plane of sample box, in test tube fixture the clamping face 208 of clamp arm 205 be with 114 matched cambered surface of test tube, And clamp arm 205 may be configured as from top to bottom tapering into, and two clamp arm 205 are clamped to enter in the gap of adjacent test tube 114 In test tube 114.

Quick change bindiny mechanism 201 includes the installing plate 209 being connected with the first manipulator 200, and two are fixed on installing plate 209 Two clamping jaw driving elements of opposite sides；One clamping jaw driving element connects two first clamping jaws 210, and two the first clamping jaws 210 extend to the lower section of installing plate 209, drive the connecting plate 203 of clamping sample holder 202；Another clamping jaw driving element connects Two second clamping jaws 211 are connect, respectively with 207 Corresponding matching of inserting groove of two clamp arm 205, stretches into and clamp arm 205 is driven in inserting groove 207 Relative movement clamping.Clamping jaw driving element can be clamping jaw cylinder or electronic clamping jaw etc..

Installing plate 209 is fixedly installed positioning pin 212 straight down, opens up on connecting plate 203 and is matched with positioning pin 212 Location hole 213, for the positioning between the two to connect.209 lower end of installing plate is fixed with fixing sleeve 214, in fixing sleeve 214 Lower end has step, and the movable part 215 that fixing sleeve 214 is stretched out in lower end, movable part 215 and connecting plate are provided in fixing sleeve 214 Discharging spring 216 is provided between 203.Movable part 215 has the boss for supporting and being located on step.Quick change bindiny mechanism 201 switches During sample holder 202, the auxiliary under the effect of discharging spring 216 of movable part 215 compresses the connecting plate 203 of sample holder 202, to help It is separated in the two.

Connecting plate 203 is connected with pressure pipe structure, and pressure pipe structure includes at least one connector for being fixed on connecting plate 203 217, connector 217 is located at 205 outside of clamp arm, can set one respectively in 205 both sides of clamp arm, the lower end of each connector 217 is set At least one guide rod moving up and down 218 is equipped with, the lower end of guide rod 218 is fixed with pressure head 219；On guide rod 218 also Adjustable spring 220 is arranged with, the both ends of adjustable spring 220 are connected to pressure head 219 and connector 217 respectively.218 upper end of guide rod Limiting section with more than guide rod 218, pressure head 219 is rubber material, when needing holding test tubes 114, on each connector 217 Each pressure head 219 be pressed on other test tubes 114 outside clamp arm 205, avoid making other adjacent test tubes 114 during gripping Into influence.

Extracting method includes herein below：

Transfer sample box is put into inside low temperature access tank by A. the first manipulator outside low temperature access tank；

B. the second manipulator in low temperature access tank, the target sample box in tank in sample storage rack is accessed by low temperature It takes out to low temperature access tank；

C. the sample to be removed that low temperature is accessed in tank in target sample box is picked and placeed into transfer sample box or by low temperature Sample to be deposited in access tank in transfer sample box is picked and placeed into target sample box.

Low temperature access tank is liquid nitrogen container or other profound hypothermia storage containers.Liquid nitrogen uses suitable for small range space, to reach Profound hypothermia environment.

This method is accessed compared to the sample in freezer environment, can realize the profound hypothermia for being less than -135 DEG C of biological cell Storage and extraction, have ensured biological cell storage time and the time limit, and freezer is usually minimum reaches -80 DEG C, can not realize deep low The sample storage and extraction of temperature.

Target sample box and transfer sample box may be provided at low temperature access tank in top, also can at middle part or lower part etc., That is top of the sample extraction in low temperature access tank carries out, and also can realize profound hypothermia ring in tank in middle part or lower part etc. progress Sample extraction under border.

The transfer sample box for being placed with the sample that need to be stored in or needs are taken out to vacant transfer sample during sample out of tank This box is put into low temperature access tank；To be placed in sample storage rack the sample box that need to take out sample as target sample box or The sample box for needing to be stored in new samples in sample storage rack is as target sample box, and target sample box is by the second manipulator in tank Remove sample storage rack.The sample then carried out between transfer sample box and target sample box shifts.Either newly it is stored in Sample still needs the sample taken out, and the low temperature environment that sample is placed that is suitable for all in tank completes extraction.It is low in extraction process The gentle extraction mouth for taking tank is opened, and for picking and placeing for sample box, can also extraction is convenient for act.

Content A and content B are carried out at the same time, and shorten beat, reduce the opening time of low temperature access tank.It, can be by content C The first manipulator outside tank carries out the extraction operation, saves space in tank, ensures memory space more in tank, the interior layout side of tank Just, operation is quick, time-consuming short, efficient；Also manipulator can be separately provided to complete or take out target sample in the second manipulator This box and after being placed, the extraction operation is carried out by the second manipulator.

After content C, target sample box is returned in sample storage rack by the second manipulator.First manipulator will shift Sample box takes out low temperature access tank.Low temperature access tank is closed.Two manipulators at this time can be carried out at the same time aforesaid operations.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, for this For the technical staff in field, there can be various modifications and variations in the spirit and principles of the utility model, these are equivalent Modification or replacement etc., are all contained within the scope of protection of the utility model.

Claims (7)

1. biological sample low temperature extraction system, which is characterized in that including the in vivo sample storage of cover, tank on tank body, tank body Frame and the second manipulator to sample storage rack access sample box, for placing transfer sample box and be arranged on the in vivo sample of tank The first manipulator outside He Zanzhi areas, tank body；Cover offers extraction mouth, and extraction mouth is combined with capping；Sample storage rack rotates It is supported in tank body, sample storage rack includes the multiple row unit frame on chassis and chassis.

2. biological sample low temperature extraction system according to claim 1, which is characterized in that second manipulator includes water Flat pumping board, the pumping board driving device of driving pumping board translation.

3. biological sample low temperature extraction system according to claim 2, which is characterized in that second manipulator further includes Bottom plate moves radially on bottom plate along sample storage rack and is provided with slide plate, and pumping board is arranged on slide plate, and the moving direction of pumping board with The moving direction of slide plate is vertical.

4. biological sample low temperature extraction system according to claim 1, which is characterized in that further include above extraction mouth Unit frame hoisting mechanism, unit frame hoisting mechanism include traversing plate, slide vertically be arranged on traversing plate and with unit frame pair The promotion connector answered.

5. biological sample low temperature extraction system according to claim 4, which is characterized in that the traversing plate is connected with being promoted Intermediate plate is provided between head, intermediate plate, which slides vertically, is arranged at traversing plate, and promotion connector, which slides vertically, is arranged at intermediate plate； Between plate top have support be pressed against promoted connector on pendant；The both ends that intermediate plate lifting is corresponded on traversing plate are fixed There is intermediate plate locating part.

6. biological sample low temperature extraction system according to claim 4, which is characterized in that the unit frame hoisting mechanism is also Including unit frame guide part, unit frame guide part includes the corresponding clamp arm on the outside of unit frame, and clamp arm is fixed on traversing plate；Clamp arm Upper rotating support has multiple rolling members contacted with unit frame alien invasion.

7. biological sample low temperature extraction system according to claim 1, which is characterized in that first manipulator is connected with Grip device, grip device include the quick change bindiny mechanism being connected with the first manipulator and the sample being connected with quick change bindiny mechanism Fixture, sample holder include sample box fixture and test tube fixture.