CN110133164A - A kind of Quick Release sample introduction needle support system for autosampler - Google Patents
A kind of Quick Release sample introduction needle support system for autosampler Download PDFInfo
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- CN110133164A CN110133164A CN201910506877.0A CN201910506877A CN110133164A CN 110133164 A CN110133164 A CN 110133164A CN 201910506877 A CN201910506877 A CN 201910506877A CN 110133164 A CN110133164 A CN 110133164A
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- introduction needle
- spring
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- 230000037431 insertion Effects 0.000 claims abstract 2
- 238000003780 insertion Methods 0.000 claims abstract 2
- 238000003825 pressing Methods 0.000 claims description 31
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 239000011324 bead Substances 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 13
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 4
- 230000003746 surface roughness Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000005070 sampling Methods 0.000 description 6
- 238000005457 optimization Methods 0.000 description 4
- 238000004587 chromatography analysis Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/24—Automatic injection systems
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- General Health & Medical Sciences (AREA)
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- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
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Abstract
The invention discloses a kind of Quick Release sample introduction needle support systems for autosampler, for installing sample introduction needle, Quick Release sample introduction needle support system is mainly by sample introduction needle spring(-supported) mount component, sample introduction needle piston snap component, spring(-supported) mount mounting bracket assembly, mounting base hook locking component, rotate Locking assembly for shaft, sample introduction punch block mounting bracket assembly composition, sample introduction needle spring(-supported) mount component is securedly mounted on spring(-supported) mount mounting bracket assembly by locating piece and the positioning of first kind fastener, mounting base hook locking component is mounted on spring(-supported) mount mounting bracket assembly by first kind fastener, sample introduction needle spring(-supported) mount component and mounting base hook locking component are located at the two sides of spring(-supported) mount mounting bracket assembly, it is locked on sample introduction punch block mounting bracket assembly in mounting base hook locking component insertion sample introduction punch block mounting base and by rotating Locking assembly for shaft；Sample introduction needle piston snap component is fixed on sample introduction punch block mounting bracket assembly by first kind fastener.
Description
Technical field
The present invention relates to analytical and testing instrument field, specifically a kind of Quick Release sample introduction needle carriage support for autosampler
System.
Background technique
In chromatography experiment, chromatography usually is transferred to after obtaining trace content sample in sample using autosampler
Column, sample object are liquid, gas etc., and chromatography is widely used in environment because of its good separation, mild condition
The fields such as detection, food hygiene, chemical analysis, grain and oil quality supervision, judicial expertise and scientific research.
The sample introduction needle of autosampler is the direct component of sampling, including needle body and plunger, needle body head are protruded into sample,
Plunger, which moves back, generates suction absorption micro-example.
Analysis test job in, autosampler when into different samples or carry out maintenance debugging when, generally require into
The replacement of row sample introduction needle.And at present in autosampler on the market, the replacement complex steps of sample introduction needle, and due to shell or lead
The location conflicts of the components such as rail and bring big inconvenience benefit more particularly to the installation of sample introduction needle and its consolidating for piston push rod
Fixed, time-consuming and cannot ensure to be installed in place completely.
Summary of the invention
It is existing to solve the purpose of the present invention is to provide a kind of Quick Release sample introduction needle support system for autosampler
The problems in technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of Quick Release sample introduction needle support system for autosampler, for installing sample introduction needle, Quick Release sample introduction needle rack
System is mainly by sample introduction needle spring(-supported) mount component, sample introduction needle piston snap component, spring(-supported) mount mounting bracket assembly, mounting base latch hook group
Part, rotation Locking assembly for shaft, sample introduction punch block mounting bracket assembly composition,
Sample introduction needle spring(-supported) mount component is securedly mounted to spring(-supported) mount mounting base group by locating piece and the positioning of first kind fastener
On part, mounting base hook locking component is mounted on spring(-supported) mount mounting bracket assembly by first kind fastener, sample introduction needle spring(-supported) mount component
The two sides of spring(-supported) mount mounting bracket assembly are located at mounting base hook locking component, mounting base hook locking component is embedded in the installation of sample introduction punch block
It is locked on sample introduction punch block mounting bracket assembly in seat and by rotating Locking assembly for shaft；Sample introduction needle piston snap component passes through the first kind
Fastener is fixed on sample introduction punch block mounting bracket assembly.
Further, sample introduction needle includes needle body and plunger, and needle body upper end is fixed on spring(-supported) mount mounting bracket assembly, and lower end is worn
Sample introduction needle spring(-supported) mount component is crossed, upper end is fixed in sample introduction needle piston snap component, and lower end is pierced into needle body.
Rotate Locking assembly for shaft the locking of mounting base hook locking component is fixed in sample introduction punch block mounting base, mounting base hook locking component
Spring(-supported) mount mounting bracket assembly, sample introduction needle spring(-supported) mount component is installed again on spring(-supported) mount mounting bracket assembly, passes through rotation lock shaft group
Operation at part, can be rapidly by mounting base hook locking component, spring(-supported) mount mounting bracket assembly, sample introduction needle spring(-supported) mount component and related
Sample introduction needle removed from sample introduction punch block mounting base, can easily replace sample introduction needle later, sample introduction needle piston snap component is solid
The top for determining plunger, operation when for sampling.
Further, sample introduction needle spring(-supported) mount component includes internal guide rod, guide rod locating piece, slide bar, linear bearing, answers
Position spring, needle auxiliary positioning part, syringe needle locating plate, slide bar fixinig plate and sample introduction needle gunning stick,
Slide bar passes through sample introduction needle gunning stick, slide bar upper end fixed by first kind fastener and slide bar fixinig plate, lower end and
Syringe needle locating plate is connected, and is arranged on slide bar and is cased with linear bearing and reset spring, and linear bearing is located in sample introduction needle gunning stick,
For reset spring between linear bearing and syringe needle locating plate, internal guide rod top passes through slide bar fixinig plate, bottom end by the
Two class fasteners are connect with needle auxiliary positioning part, internal guide rod also pass through sample introduction needle gunning stick and in the middle part of bar, sample introduction needle it is fixed
Guide rod locating piece is arranged above to frame, syringe needle locating plate following table is equipped with protrusion, in sampling operation, protrusion locking sample bottle,
Prevent sample bottle from shaking, sample introduction needle successively passes across or through slide bar fixinig plate, guide rod locating piece, needle auxiliary positioning part and syringe needle
Expose outside syringe needle locating plate after locating plate；The needle body of sample introduction needle passes through position in needle auxiliary positioning part and syringe needle locating plate and realizes needle
Head positioning, bending when being also prevented from syringe needle operation.
Sample introduction needle gunning stick is securedly mounted on spring(-supported) mount mounting bracket assembly by locating piece and the positioning of first kind fastener；
Sample introduction needle piston snap component include clamp, position-limitting pin, secondary reset spring, chassis, button, master reset spring,
Upper frame, limit shaft and rubber pad,
Button lower part sets roofbolt, and roofbolt is threadedly coupled after sequentially passing through master reset spring, upper frame with limit shaft；Under limit shaft
Fixed rubber pad is held, rubber pad is contacted with plunger top, and chassis is arranged in the lower section of upper frame and by clamp, position-limitting pin, pair
Reset spring is fixed；It is connected through a screw thread between button and limit shaft, it can be achieved that limit shaft is carried out apart from tune in the axial direction
Section, preferably to compress the piston head of sample introduction needle；When pressing sample introduction needle button, button drives limit shaft to squeeze clamp, master reset
Spring is compressed.Clamp stress is opened to two sides.After reaching certain depth, compressed pair reset spring rebound drives clamp
Inwardly tightening, limit shaft are lockked by clamp, i.e. sample introduction needle piston is lockable；When pressing two sides clamp, compressed master reset
Spring drives limit shaft to flick upwards, and sample introduction needle piston is unlocked.
Mounting base hook locking component includes steel ball, spring, fixed pin and latch hook, and latch hook passes through first kind fastener and spring(-supported) mount
Mounting bracket assembly is fixed, and latch hook gib head position is equipped with the through-hole of two intersections, steel ball and spring is arranged in one of through-hole, separately
Fixed pin is set in one through-hole, and spring one end compresses steel ball against fixed pin, one end, and latch hook is embedded in sample introduction punch block mounting base group
Rotation Locking assembly for shaft is caught at gib head position after part, and steel ball is contacted with rotation Locking assembly for shaft；
Mounting base hook locking component realizes being stably connected with for sample introduction punch block mounting bracket assembly and spring(-supported) mount mounting bracket assembly.
Sample introduction punch block mounting bracket assembly includes lead screw motor, snap component mounting base, guide rail, sliding block, punch block mounting base, card
The buckle assembly mounting base back side is fixed on the bracket of autosampler by first kind fastener connection sliding block, punch block mounting base,
Lead screw motor and guide rail are fixedly mounted in punch block mounting base, and sliding block is slidably connected with guide rail, and lead screw motor drives snap component
Mounting base is moved along guide rail, and the lower section of snap component mounting base, punch block mounting base are equipped with the slot to match with latch hook shape；
Snap component mounting base hooks the head of plunger together with sample introduction needle piston snap component, and needle body is consolidated
Fixed, lead screw motor operation drives snap component mounting base to move along guide rail, and plunger and needle body generate axial relative movement, realizes
The sucking and discharge of sample introduction needle bottom end sample.Sample introduction be needled into the process of sample by the fixed position of punch block mounting base it is automatic into
The vertical shift that the bracket of sample device provides is completed.
Rotation Locking assembly for shaft includes milled screw, punch block plectrum, circlip and lock shaft, and lock shaft is pacified from side across punch block
Seat is filled, circlip inlay card is on lock shaft and against punch block installation seating face for limiting lock shaft axial float, milled screw rotation
Enter punch block mounting base side and compress one end of punch block plectrum, the other end of punch block plectrum and the end of lock shaft fasten, locking
Axis middle section is equipped with groove, and the groove back side is equipped with the shallow bore hole to match with steel ball；Milled screw, which is rotated, by front and back realizes rotation lock
Mandrel, when the steel ball of the shallow bore hole at the groove back side of lock shaft and mounting base hook locking component cooperates, the locking of sample introduction needle support system.
Spring(-supported) mount mounting bracket assembly is for connecting latch hook and sample introduction needle gunning stick and providing installation site for needle body upper end.
As further scheme, spring(-supported) mount mounting bracket assembly includes the first sample introduction needle pressing plate, sample introduction needle card, card reset
Spring, card shop bolt and sample introduction punch block, sample introduction punch block pressing plate are mounted on the upper table of sample introduction punch block by first kind fastener,
Sample introduction needle card is strung by card shop bolt to be arranged between sample introduction needle pressing plate and sample introduction punch block, and sample introduction needle card can be around card
Shop bolt axis is rotated to be pushed aside to two sides, and sample introduction needle card circumferential surface is against card reset spring for answering after pushing aside
Position, sample introduction needle card are pushed down at the top of needle body；Sample introduction punch block is solid with latch hook, sample introduction needle gunning stick respectively by first kind fastener
It is fixed.
As another further scheme, spring(-supported) mount mounting bracket assembly includes the second sample introduction needle pressing plate, sample introduction punch block, rotation
Pin and positioning bead screw, the second sample introduction needle pressing plate are hinged on table on sample introduction punch block, the second sample introduction by horizontally disposed rotating dog
Needle pressing plate is pushed down at the top of needle body, and positioning bead screw screws the table side face on sample introduction punch block, positioning bead screw head against second into
Sample needle pressing plate, which rotates it, to be limited；Sample introduction punch block is fixed with latch hook, sample introduction needle gunning stick respectively by first kind fastener.
Positioning bead screw head is equipped with blind hole, and one spring of installation and ball in blind hole, it is straight that ball diameter is less than blind hole oral area
Diameter, spring one end hold out against ball against blind via bottom, one end outwardly.
Rotatable second sample introduction needle pressing plate is opened and closed up and down to fix the flange at the top of needle body, fixed after compressing at the top of needle body
Position pearl screw is tightened the second sample introduction needle pressing plate.
As optimization, first kind fastener is sunk screw or soket head cap screw, and the second class fastener is holding screw, fixed
Position part is straight pin.There is the boss feature of achievable axially position on the head of sunk screw or soket head cap screw, and holding screw is small
It is skilful convenient, it is suitble to position locking of the axis class in hole, straight pin simple general use.
As optimization, internal guide rod, slide bar, linear bearing, reset spring respectively have two groups, and the two sides of needle body are arranged in,
Slide bar upper end, which passes through, is equipped with guide rod copper sheathing or bearing at the position of slide bar fixinig plate, syringe needle locating plate and sample introduction needle gunning stick are each
Noise reduction rubber cushion is equipped with from the surface towards needle auxiliary positioning part.
Internal guide rod, slide bar, linear bearing, reset spring use the double configurations in two sides to increase the firm of sample introduction punch block
Property, guide rod copper sheathing or bearing can guarantee low friction when sliding, be further ensured that sample introduction needle spring(-supported) mount component in the direction of motion
On positioning accuracy.
As optimization, the position that lock shaft passes through punch block mounting base is equipped with copper sheathing or bearing.Copper sheathing or bearing guarantee lock
The running accuracy of mandrel.
As optimization, sample introduction punch block and the contact surface of sample introduction needle gunning stick, the contact surface of sample introduction punch block and punch block mounting base:
Parallelism tolerance between face and face is less than 0.1 millimeter, and for each plane flatness tolerance less than 0.1 millimeter, each plane surface is coarse
Degree is less than 12.5 microns.Guarantee installation accuracy of the sample introduction punch block on left and right and vertical direction.
Compared with prior art, the beneficial effects of the present invention are: the present invention is a kind of dismountable liquid or gas sampling
Needle rack system, sample introduction needle spring(-supported) mount component, spring(-supported) mount mounting bracket assembly and mounting base hook locking component pass through shop bolt and spiral shell
After nail is fixed, it is fixed on sample introduction punch block mounting bracket assembly by rotating Locking assembly for shaft；Sample introduction needle piston snap component passes through spiral shell
Bolt is fixed on sample introduction punch block mounting bracket assembly；It, can by the limit of rotation Locking assembly for shaft and sample introduction punch block mounting bracket assembly
Realize the convenient dismounting of sample introduction punch block, to reach the dystopy installation of sample introduction needle, greatly reduce sample introduction needle install in situ it is tired
It is difficult.
Detailed description of the invention
In order that the present invention can be more clearly and readily understood, right below according to specific embodiment and in conjunction with attached drawing
The present invention is described in further detail.
Fig. 1 is general structure schematic diagram of the invention；
Fig. 2 is the connection signal of sample introduction needle spring(-supported) mount component of the present invention, spring(-supported) mount mounting bracket assembly, mounting base hook locking component
Figure；
Fig. 3 is the structural blast schematic diagram of sample introduction needle spring(-supported) mount component of the present invention；
Fig. 4 is the structural blast schematic diagram of sample introduction needle piston snap component of the present invention；
Fig. 5 is the structural blast schematic diagram of mounting base hook locking component of the present invention；
Fig. 6 is the structural blast schematic diagram of sample introduction punch block mounting bracket assembly of the present invention；
Fig. 7 is the structural blast schematic diagram of present invention rotation Locking assembly for shaft；
Fig. 8 is the structural schematic diagram of lock shaft of the present invention；
Fig. 9 is the connection signal of mounting base hook locking component of the present invention, rotation Locking assembly for shaft, sample introduction punch block mounting bracket assembly
Figure；
Figure 10 is the structural blast schematic diagram of the spring(-supported) mount mounting bracket assembly of the specific embodiment of the invention one；
Figure 11 is the structural blast schematic diagram of the spring(-supported) mount mounting bracket assembly of the specific embodiment of the invention two；
Figure 12 is the structural schematic diagram of positioning bead screw of the present invention；
Figure 13 is the structure chart of sample introduction needle.
In figure: 001- first kind fastener, 002- positioning pin, the second class of 003- fastener, 004- sample introduction needle, 0041- needle
Body, 0042- plunger, 100- sample introduction needle spring(-supported) mount component, the inside 101- guide rod, 102- guide rod copper sheathing, 103- guide rod are fixed
Position part, 104- slide bar, 105- linear bearing, 106- reset spring, 107- needle auxiliary positioning part, 108- noise reduction rubber cushion, 109-
Syringe needle locating plate, 110- slide bar fixinig plate, 111- sample introduction needle gunning stick, 200- sample introduction needle piston snap component, 201- clamp,
202- position-limitting pin, 203- pair reset spring, 204- chassis, 205- button, 207- master reset spring, 208- upper frame, 209- limit
Position axis, 210- rubber pad, 300- spring(-supported) mount mounting bracket assembly, 3021- sample introduction punch block pressing plate, 3022- sample introduction needle pressing plate, 303- into
Sample needle card, 304- card reset spring, 305- card shop bolt, 306- sample introduction punch block, 307- rotary shaft, 308- positioning bead
Screw, 400- mounting base hook locking component, 401- steel ball, 402- spring, 403- fixed pin, 404- latch hook, 500- rotate lock shaft group
Part, 501- milled screw, 502- punch block plectrum, 503- copper sheathing, 504- circlip, 505- lock shaft, 600- sample introduction punch block mounting base
Component, 601- lead screw motor, 606- snap component mounting base, 607- guide rail, 609- sliding block, 610- sample introduction punch block mounting base.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, 2, a kind of Quick Release sample introduction needle support system for autosampler, for installing sample introduction needle 004,
Quick Release sample introduction needle support system is mainly installed by sample introduction needle spring(-supported) mount component 100, sample introduction needle piston snap component 200, spring(-supported) mount
Holder assembly 300, mounting base hook locking component 400, rotation Locking assembly for shaft 500, sample introduction punch block mounting bracket assembly 600 form,
Sample introduction needle spring(-supported) mount component 100 is securedly mounted to spring(-supported) mount by locating piece 002 and the positioning of first kind fastener 001
On mounting bracket assembly 300, mounting base hook locking component 400 is mounted on spring(-supported) mount mounting bracket assembly 300 by first kind fastener 001
On, sample introduction needle spring(-supported) mount component 100 and mounting base hook locking component 400 are located at the two sides of spring(-supported) mount mounting bracket assembly 300, peace
Dress seat hook locking component 400 is embedded in sample introduction punch block mounting base 600 and is locked at the installation of sample introduction punch block by rotating Locking assembly for shaft 500
On 600 components of seat；Sample introduction needle piston snap component 200 is fixed on sample introduction punch block mounting bracket assembly by first kind fastener 001
On 600.
As shown in figure 13, sample introduction needle 004 includes needle body 0041 and plunger 0042, and 0041 upper end of needle body is fixed on spring(-supported) mount peace
It fills on holder assembly 300, lower end passes through sample introduction needle spring(-supported) mount component 100, and 0042 upper end of plunger is fixed on sample introduction needle piston buckle group
On part 200, lower end is pierced into needle body 0041.
It rotates Locking assembly for shaft 500 mounting base hook locking component 400 locks in sample introduction punch block mounting base 600, mounting base latch hook
Fixed spring(-supported) mount mounting bracket assembly 300 on component 400 is installed with sample introduction needle spring(-supported) mount on spring(-supported) mount mounting bracket assembly 300 again
Component 100 can be rapidly by mounting base hook locking component 400, spring(-supported) mount mounting base by the operation at rotation Locking assembly for shaft 500
Component 300, sample introduction needle spring(-supported) mount component 100 and the sample introduction needle 004 being inconjunction with are removed from sample introduction punch block mounting base 600, it
After can easily replace sample introduction needle 004, the top of the fixed plunger 0042 of sample introduction needle piston snap component 200, when for sampling
Operation.
As shown in figure 3, sample introduction needle spring(-supported) mount component 100 includes internal guide rod 101, guide rod locating piece 103, slide bar
104, linear bearing 105, reset spring 106, needle auxiliary positioning part 107, syringe needle locating plate 109, slide bar fixinig plate 110 and sample introduction
Needle gunning stick 111,
Slide bar 104 passes through sample introduction needle gunning stick 111, and 104 upper end of slide bar passes through first kind fastener 001 and slide bar fixinig plate
110 is fixed, lower end is connected with syringe needle locating plate 109, is arranged on slide bar 104 and is cased with linear bearing 105 and reset spring 106,
Linear bearing 105 is located in sample introduction needle gunning stick 111, reset spring 106 be located at linear bearing 105 and syringe needle locating plate 109 it
Between, internal 101 top of guide rod passes through slide bar fixinig plate 110, bottom end passes through the second class fastener 003 and needle auxiliary positioning part
107 connections, internal guide rod 101 also pass through sample introduction needle gunning stick 111 and are arranged in the middle part of bar, above sample introduction needle gunning stick 111
Guide rod locating piece 103,109 following table of syringe needle locating plate is equipped with protrusion, and in sampling operation, protrusion locking sample bottle prevents sample
Product bottle shakes, and sample introduction needle 004 successively passes across or through slide bar fixinig plate 110, guide rod locating piece 103, needle auxiliary positioning part 107
Expose outside syringe needle locating plate 109 with after syringe needle locating plate 109；The needle body 0041 of sample introduction needle 004 is in needle auxiliary positioning part 107 and needle
Head locating plate 109 passes through position and realizes syringe needle positioning, bending when being also prevented from syringe needle operation.
Sample introduction needle gunning stick 111 is securedly mounted to spring(-supported) mount installation by locating piece 002 and the positioning of first kind fastener 001
On holder assembly 300；
As shown in figure 4, sample introduction needle piston snap component 200 include clamp 201, position-limitting pin 202, secondary reset spring 203,
Chassis 204, button 205, master reset spring 207, upper frame 208, limit shaft 209 and rubber pad 210,
205 lower part of button sets roofbolt, roofbolt sequentially pass through after master reset spring 207, upper frame 208 with 209 screw thread of limit shaft
Connection；Rubber pad 210, rubber pad 210 and 0042 tip contact of plunger are fixed in 209 lower end of limit shaft, and chassis 204 is arranged in upper frame
208 lower section is simultaneously fixed by clamp 201, position-limitting pin 202, secondary reset spring 203；Lead between button 205 and limit shaft 209
Threaded connection is crossed, it can be achieved that limit shaft 209 is carried out in the axial direction apart from adjusting, preferably to compress the work of sample introduction needle 004
Chock plug；When pressing sample introduction needle button 205, button 205 drives limit shaft 209 to squeeze clamp 201, and master reset spring 207 is compressed.
201 stress of clamp is opened to two sides.After reaching certain depth, it is compressed pair reset spring 203 rebound drive clamp 201 to
Interior tightening, limit shaft 209 are lockked by clamp, i.e. 004 piston of sample introduction needle is lockable；It is compressed when pressing two sides clamp 201
Master reset spring 207 drives limit shaft 209 to flick upwards, and 004 piston of sample introduction needle is unlocked.
As shown in figure 5, mounting base hook locking component 400 includes steel ball 401, spring 402, fixed pin 403 and latch hook 404, lock
Hook 404 is fixed by first kind fastener 001 and spring(-supported) mount mounting bracket assembly 300, and 404 gib head position of latch hook is equipped with two intersections
Through-hole, fixed pin 403, spring 402 1 is arranged in another through-hole in setting steel ball 401 and spring 402 in one of through-hole
End compresses steel ball 401 against fixed pin 403, one end, and gib head position hooks after latch hook 404 is embedded in sample introduction punch block mounting bracket assembly 600
Locking assembly for shaft 500 is firmly rotated, steel ball 401 is contacted with rotation Locking assembly for shaft 500；
The stabilization of mounting base hook locking component 400 realization sample introduction punch block mounting bracket assembly 600 and spring(-supported) mount mounting bracket assembly 300
Connection.
As shown in fig. 6, sample introduction punch block mounting bracket assembly 600 includes lead screw motor 601, snap component mounting base 606, guide rail
607, sliding block 609, punch block mounting base 610,606 back side of snap component mounting base pass through 001 connection sliding block of first kind fastener
609, punch block mounting base 610 is fixed on the bracket of autosampler, and lead screw motor 601 and guide rail 607 are fixedly mounted on punch block
In mounting base 610, sliding block 609 is slidably connected with guide rail 607, and lead screw motor 601 drives snap component mounting base 606 along guide rail
607 is mobile, and the lower section of snap component mounting base 606, punch block mounting base 610 are equipped with the slot to match with 404 shape of latch hook；
Snap component mounting base 606 hooks the head of plunger 0042, needle together with sample introduction needle piston snap component 200
Body 0041 has been fixed, lead screw motor 601 run, drive snap component mounting base 606 moved along guide rail 607, plunger 0042 with
Needle body 0041 generates axial relative movement, realizes the sucking and discharge of 004 bottom end sample of sample introduction needle.Sample introduction needle 004 is pierced into sample
Process by the fixed position of punch block mounting base 610 autosampler bracket provide vertical shift complete.
As shown in Fig. 7,8,9, rotation Locking assembly for shaft 500 includes milled screw 501, punch block plectrum 502, circlip 504 and lock
Mandrel 505, lock shaft 505 pass through punch block mounting base 610 from side, and 504 inlay card of circlip is pacified on lock shaft 505 and against punch block
Dress 610 surface of seat screws in 610 side of punch block mounting base and compresses needle for limiting 505 axial float of lock shaft, milled screw 501
One end of frame plectrum 502, the other end of punch block plectrum 502 and the end of lock shaft 505 fasten, and 505 middle section of lock shaft is equipped with recessed
Slot, the groove back side are equipped with the shallow bore hole to match with steel ball 401；Milled screw 501, which is rotated, by front and back realizes rotation lock mandrel
505, when the steel ball 401 of the shallow bore hole at the groove back side of lock shaft 505 and mounting base hook locking component 400 cooperates, sample introduction needle rack
System locking.
As shown in Figure 10, spring(-supported) mount mounting bracket assembly 300 is for connecting latch hook 404 and sample introduction needle gunning stick 111 and being needle
0041 upper end of body provides installation site.
Spring(-supported) mount mounting bracket assembly 300 includes the first sample introduction needle pressing plate 3021, sample introduction needle card 303, card reset spring
304, card shop bolt 305 and sample introduction punch block 306, sample introduction punch block pressing plate 3021 by first kind fastener 001 be mounted on into
The upper table of sample punch block 306, sample introduction needle card 303 is strung by card shop bolt 305 to be arranged in sample introduction needle pressing plate 3021 and sample introduction
Between punch block 306, sample introduction needle card 303, which can be rotated around 305 axis of card shop bolt to two sides, to be pushed aside, sample introduction needle card 303
For circumferential surface against card reset spring 304 for the reset after pushing aside, sample introduction needle card 303 pushes down 0041 top of needle body；Into
Sample punch block 306 is fixed with latch hook 404, sample introduction needle gunning stick 111 respectively by first kind fastener 001.
First kind fastener 001 is sunk screw or soket head cap screw, and the second class fastener 003 is holding screw, positioning
Part 002 is straight pin.There is the boss feature of achievable axially position on the head of sunk screw or soket head cap screw, and holding screw is small
It is skilful convenient, it is suitble to position locking of the axis class in hole, straight pin simple general use.
Internal guide rod 101, slide bar 104, linear bearing 105, reset spring 106 respectively have two groups, are arranged in needle body 0041
Two sides, 104 upper end of slide bar pass through slide bar fixinig plate 110 position at be equipped with guide rod copper sheathing 102 or bearing, syringe needle locating plate
109 and sample introduction needle gunning stick 111 respectively towards the surface of needle auxiliary positioning part 107 be equipped with noise reduction rubber cushion 108.
Internal guide rod 101, slide bar 104, linear bearing 105, reset spring 106 use the double configurations in two sides to increase sample introduction
The stability of punch block, guide rod copper sheathing 102 or bearing can guarantee low friction when sliding, be further ensured that sample introduction needle spring(-supported) mount group
The positioning accuracy of part 100 in the movement direction.
The position that lock shaft 505 passes through punch block mounting base 610 is equipped with copper sheathing 503 or bearing.Copper sheathing 503 or bearing guarantee
The running accuracy of lock shaft 505.
The contact of sample introduction punch block 306 and the contact surface of sample introduction needle gunning stick 111, sample introduction punch block 306 and punch block mounting base 610
Face: the parallelism tolerance between face and face is less than 0.1 millimeter, and for each plane flatness tolerance less than 0.1 millimeter, each plane surface is thick
Rugosity is less than 12.5 microns.The processing request of each structure size can guarantee peace of the sample introduction punch block 306 on left and right and vertical direction
Fill precision.
Use principle of the invention is: sample introduction needle 004 is interspersed to be mounted on sample introduction needle spring(-supported) mount component 100, needle body 0041
Top is placed under sample introduction needle card 303, by sample introduction needle spring(-supported) mount component 100, spring(-supported) mount mounting bracket assembly 300, mounting base latch hook
Component 400 is installed to together in punch block mounting base 610, drives lock shaft 505 to catch on latch hook 404 by rotation milled screw 501,
It realizes the locking of sample introduction needle support system, the top of plunger 0042 is placed between snap component mounting base 606 and rubber pad 210,
This punch block system moves down under the drive of autosampler bracket later, and sample is protruded into 0041 lower end of needle body, and lead screw motor 601 is transported
Row, snap component mounting base 606 moves up, and the head of plunger 0042 is pulled upwardly, and sample introduction needle 004 is from sample, subsequent silk
601 inverted running of bar motor, snap component mounting base 606 move down, and sample introduction needle 004 goes out sample, the internal structure of sample introduction needle 004 and existing
There is technology identical.
Specific embodiment 2:
With embodiment one the difference is that the internal structure of spring(-supported) mount mounting bracket assembly 300, as shown in Figure 11,12:
Spring(-supported) mount mounting bracket assembly 300 includes the second sample introduction needle pressing plate 3022, sample introduction punch block 306, rotating dog 307 and positioning
Pearl screw 308, the second sample introduction needle pressing plate 3022 are hinged on table on sample introduction punch block 306 by horizontally disposed rotating dog 307, and second
Sample introduction needle pressing plate 3022 pushes down 0041 top of needle body, and positioning bead screw 308 screws table side face, positioning bead on sample introduction punch block 306
308 head of screw, which rotates it against the second sample introduction needle pressing plate 3022, to be limited；Sample introduction punch block 306 passes through first kind fastener
001 is fixed with latch hook 404, sample introduction needle gunning stick 111 respectively.
308 head of positioning bead screw is equipped with blind hole, one spring of installation and ball in blind hole, and ball diameter is less than blind hole oral area
Diameter, spring one end hold out against ball against blind via bottom, one end outwardly.
Rotatable about 3,022 second sample introduction needle pressing plate folding compresses needle body to fix the flange at the top of needle body 0041
Behind 0041 top, positioning bead screw 308 is tightened the second sample introduction needle pressing plate 3022.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of Quick Release sample introduction needle support system for autosampler, for installing sample introduction needle (004), it is characterised in that:
The Quick Release sample introduction needle support system is mainly by sample introduction needle spring(-supported) mount component (100), sample introduction needle piston snap component (200), bullet
Spring support mounting bracket assembly (300), mounting base hook locking component (400), rotation Locking assembly for shaft (500), sample introduction punch block mounting bracket assembly
(600) it forms,
The sample introduction needle spring(-supported) mount component (100) is securedly mounted to by locating piece (002) and first kind fastener (001) positioning
On spring(-supported) mount mounting bracket assembly (300), the mounting base hook locking component (400) is mounted on bullet by first kind fastener (001)
On spring support mounting bracket assembly (300), sample introduction needle spring(-supported) mount component (100) and mounting base hook locking component (400) are located at spring
The two sides of frame mounting bracket assembly (300), mounting base hook locking component (400) insertion sample introduction punch block mounting base (600) is interior and leads to
Rotation lock shaft assembly (500) is crossed to be locked on sample introduction punch block mounting base (600) component；Sample introduction needle piston snap component (200) is logical
First kind fastener (001) is crossed to be fixed on sample introduction punch block mounting bracket assembly (600).
2. a kind of Quick Release sample introduction needle support system for autosampler according to claim 1, it is characterised in that: institute
Stating sample introduction needle (004) includes needle body (0041) and plunger (0042), and needle body (0041) upper end is fixed on spring(-supported) mount mounting base
On component (300), lower end passes through sample introduction needle spring(-supported) mount component (100), and plunger (0042) upper end is fixed on sample introduction needle piston
In snap component (200), lower end is pierced into needle body (0041).
3. a kind of Quick Release sample introduction needle support system for autosampler according to claim 2, it is characterised in that: institute
Stating sample introduction needle spring(-supported) mount component (100) includes internal guide rod (101), guide rod locating piece (103), slide bar (104), linear axis
Hold (105), reset spring (106), needle auxiliary positioning part (107), syringe needle locating plate (109), slide bar fixinig plate (110) and sample introduction
Needle gunning stick (111),
The slide bar (104) passes through sample introduction needle gunning stick (111), and slide bar (104) upper end passes through first kind fastener (001) and sliding
Bar fixinig plate (110) is fixed, lower end is connected with syringe needle locating plate (109), is arranged on slide bar (104) and is cased with linear bearing
(105) it is located in sample introduction needle gunning stick (111) with reset spring (106), the linear bearing (105), reset spring (106) position
Between linear bearing (105) and syringe needle locating plate (109), internal guide rod (101) top passes through slide bar fixinig plate
(110), bottom end is connect by the second class fastener (003) with needle auxiliary positioning part (107), and internal guide rod (101) also passes through
Sample introduction needle gunning stick (111) is simultaneously arranged guide rod locating piece (103), the needle in the middle part of bar, above sample introduction needle gunning stick (111)
Head locating plate (109) following table is equipped with protrusion, and sample introduction needle (004) successively passes across or through slide bar fixinig plate (110), guide rod positioning
Part (103), needle auxiliary positioning part (107) and syringe needle locating plate (109) expose syringe needle locating plate (109) outside afterwards；
The sample introduction needle gunning stick (111) is securedly mounted to spring by locating piece (002) and first kind fastener (001) positioning
On frame mounting bracket assembly (300)；
The sample introduction needle piston snap component (200) includes clamp (201), position-limitting pin (202), secondary reset spring (203), bottom
Frame (204), button (205), master reset spring (207), upper frame (208), limit shaft (209) and rubber pad (210),
Button (205) lower part sets roofbolt, and roofbolt sequentially passes through master reset spring (207), upper frame (208) afterwards and limit shaft
(209) it is threadedly coupled；Limit shaft (209) lower end is fixed rubber pad (210), rubber pad (210) and plunger (0042) tip contact,
Chassis (204) is arranged the lower section in upper frame (208) and passes through clamp (201), position-limitting pin (202), secondary reset spring (203) admittedly
It is fixed；
The mounting base hook locking component (400) includes steel ball (401), spring (402), fixed pin (403) and latch hook (404), institute
It states latch hook (404) to fix by first kind fastener (001) and spring(-supported) mount mounting bracket assembly (300), latch hook (404) gib head position
If steel ball (401) and spring (402) are arranged in one of through-hole there are two the through-hole intersected, setting is solid in another through-hole
Rationed marketing (403), described spring (402) one end compress steel ball (401) against fixed pin (403), one end, and latch hook (404) is embedded into
Rotation Locking assembly for shaft (500), the steel ball (401) and rotation lock shaft are caught in gib head position to sample punch block mounting bracket assembly (600) afterwards
Component (500) contact；
The sample introduction punch block mounting bracket assembly (600) includes lead screw motor (601), snap component mounting base (606), guide rail
(607), sliding block (609), punch block mounting base (610), snap component mounting base (606) back side pass through first kind fastener
(001) connection sliding block (609), the punch block mounting base (610) are fixed on the bracket of autosampler, the lead screw motor
(601) it is fixedly mounted on punch block mounting base (610) with guide rail (607), sliding block (609) is slidably connected with guide rail (607), screw rod
Motor (601) drives snap component mounting base (606) mobile along guide rail (607), the lower section of snap component mounting base (606), needle
Frame mounting base (610) is equipped with the slot to match with latch hook (404) shape；
The rotation Locking assembly for shaft (500) includes milled screw (501), punch block plectrum (502), circlip (504) and lock shaft
(505), the lock shaft (505) passes through punch block mounting base (610) from side, and circlip (504) inlay card is in lock shaft (505)
Above and against punch block mounting base (610) surface for limiting lock shaft (505) axial float, the milled screw (501) screw in
Punch block mounting base (610) side and the one end for compressing punch block plectrum (502), the other end and lock shaft of punch block plectrum (502)
(505) end fastening, lock shaft (505) middle section are equipped with groove, and the groove back side is shallow equipped with matching with steel ball (401)
Hole；
The spring(-supported) mount mounting bracket assembly (300) is for connecting latch hook (404) and sample introduction needle gunning stick (111) and being needle body
(0041) upper end provides installation site.
4. a kind of Quick Release sample introduction needle support system for autosampler according to claim 3, it is characterised in that: institute
Stating spring(-supported) mount mounting bracket assembly 300 includes the first sample introduction needle pressing plate (3021), sample introduction needle card (303), card reset spring
(304), card shop bolt (305) and sample introduction punch block (306), the sample introduction punch block pressing plate (3021) pass through first kind fastener
(001) it is mounted on the upper table of sample introduction punch block (306), the sample introduction needle card (303) strings setting by card shop bolt (305)
Between sample introduction needle pressing plate (3021) and sample introduction punch block (306), sample introduction needle card (303) can be around card shop bolt (305) axis
Line is rotated to be pushed aside to two sides, and sample introduction needle card (303) circumferential surface is against card reset spring (304) for answering after pushing aside
Position, sample introduction needle card (303) are pushed down at the top of needle body (0041)；The sample introduction punch block (306) passes through first kind fastener (001) point
It is unfixed with latch hook (404), sample introduction needle gunning stick (111).
5. a kind of Quick Release sample introduction needle support system for autosampler according to claim 3, it is characterised in that: institute
Stating spring(-supported) mount mounting bracket assembly 300 includes the second sample introduction needle pressing plate (3022), sample introduction punch block (306), rotating dog (307) and positioning
Pearl screw (308), the second sample introduction needle pressing plate (3022) are hinged on sample introduction punch block by horizontally disposed rotating dog (307)
(306) table on, the second sample introduction needle pressing plate (3022) are pushed down at the top of needle body (0041), the positioning bead screw (308) screw into
Table side face on sample punch block (306), positioning bead screw (308) head, which rotates it against the second sample introduction needle pressing plate (3022), to be limited
Position；The sample introduction punch block (306) is solid with latch hook (404), sample introduction needle gunning stick (111) respectively by first kind fastener (001)
It is fixed.
6. a kind of Quick Release sample introduction needle support system for autosampler according to claim 4 or 5, feature exist
In: the first kind fastener (001) is sunk screw or soket head cap screw, and the second class fastener (003) is clamp screw
Nail, the locating piece (002) are straight pin.
7. a kind of Quick Release sample introduction needle support system for autosampler according to claim 6, it is characterised in that: institute
Stating internal guide rod (101), slide bar (104), linear bearing (105), reset spring (106) respectively has two groups, is arranged in needle body
(0041) two sides, slide bar (104) upper end pass through and are equipped with guide rod copper sheathing (102) at the position of slide bar fixinig plate (110)
Or bearing, the syringe needle locating plate (109) and sample introduction needle gunning stick (111) are respectively towards the surface of needle auxiliary positioning part (107)
It is equipped with noise reduction rubber cushion (108).
8. a kind of Quick Release sample introduction needle support system for autosampler according to claim 6, it is characterised in that: institute
It states lock shaft (505) and is equipped with copper sheathing (503) or bearing across the position of punch block mounting base (610).
9. a kind of Quick Release sample introduction needle support system for autosampler according to claim 5, it is characterised in that: institute
Positioning bead screw (308) head is stated equipped with blind hole, blind hole one spring of interior installation and ball, it is straight that ball diameter is less than blind hole oral area
Diameter, spring one end hold out against ball against blind via bottom, one end outwardly.
10. a kind of Quick Release sample introduction needle support system for autosampler according to claim 6, it is characterised in that:
The contact surface, sample introduction punch block (306) and punch block mounting base (610) of the sample introduction punch block (306) and sample introduction needle gunning stick (111)
Contact surface: the parallelism tolerance between face and face is less than 0.1 millimeter, and each plane flatness tolerance is less than 0.1 millimeter, each flat table
Surface roughness is less than 12.5 microns.
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| CN201910506877.0A CN110133164B (en) | 2019-06-12 | 2019-06-12 | Quick-dismantling sample injection needle support system for automatic sample injector |
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| CN201910506877.0A CN110133164B (en) | 2019-06-12 | 2019-06-12 | Quick-dismantling sample injection needle support system for automatic sample injector |
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| CN110133164B CN110133164B (en) | 2024-04-26 |
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| CN116500253A (en) * | 2023-06-29 | 2023-07-28 | 山东康华生物医疗科技股份有限公司 | Mixing and sample adding assembly of incubation module of immunity quantitative analyzer |
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|---|---|
| CN110133164B (en) | 2024-04-26 |
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