CN2139854Y - Adjustable step continous sample adding apparatus - Google Patents
Adjustable step continous sample adding apparatus Download PDFInfo
- Publication number
- CN2139854Y CN2139854Y CN 92240969 CN92240969U CN2139854Y CN 2139854 Y CN2139854 Y CN 2139854Y CN 92240969 CN92240969 CN 92240969 CN 92240969 U CN92240969 U CN 92240969U CN 2139854 Y CN2139854 Y CN 2139854Y
- Authority
- CN
- China
- Prior art keywords
- handle housing
- tooth
- pull bar
- continuous sample
- fairlead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 230000001105 regulatory effect Effects 0.000 claims abstract description 24
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 abstract description 5
- 230000001429 stepping effect Effects 0.000 description 14
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 241001397306 Proales Species 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000010076 replication Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses an adjustable step continuous sample adding apparatus, which comprises a liquid suction and expulsion pump which is composed of one or more than one plastic syringes and nozzles, a guide sleeve, a slide plate and an expanding pressured plate, a stepping operating mechanism which is composed of a rack bar draw rod, a supporting tooth wrench, a restoring spring and an elasticity supporting tooth, a regulating mechanism which is composed of a regulating sleeve, a regulating disk and a regulating loop, a handle housing and a suction liquid measure stroke correction and indicating structure. The utility model can take a plurality of syringes as a pipetting container, has the advantages of strong versatility, high precision, simple structure, convenient operation, high reliability and good interchange ability, and can not pollute syringes.
Description
The utility model relates to a kind of continuous sample adding device of stepping of machinery control, the continuous sample injector of particularly a kind of adjustable stepping.
Existing sample injector utilizes the relative motion of piston and plunger shaft to cause atmospheric pressure difference principle to manufacture and design usually, and they have single tube or the quantitative adjustable charger of multitube.This product can cause friction of motion in use, uses from the face length phase to cause wearing and tearing to reduce sealing property.In addition, sampling liquid directly enters plunger shaft, can reduce the dimensional accuracy in the chamber owing to corrode, thereby causes the decline of the repeatable accuracy and the absolute precision of liquid feeding.In addition, because sampling liquid directly enters plunger shaft,,,, can increase expenditure as with many chargers difference application of samples so be not easy to carry out the application of sample of multiple liquid with a sample injector for avoiding cross pollution; As application of sample again after cleaning, can reduce operating efficiency.Also have now and a kind ofly utilize dismountable syringe to be installed in the liquid application of sample machinery that the mode on the application of sample rifle is made.This application of sample machinery has overcome above-mentioned shortcoming basically, but it is owing to structural reason, can only select the single tube syringe of regulation shape for use, then also must change syringe as using multiple liquid.Its governor motion complex structure in addition, driving-chain is long, and long-time the use is difficult to guarantee high-accuracy sampling.
The purpose of this utility model provides the continuous sample injector of a kind of adjustable stepping, and this sample injector can adopt a pipe or multitube plastic injector to move liquid container, highly versatile, and interchangeability is good, the repeatable accuracy height, and syringe can be not contaminated.And it is simple and reasonable, easy to use and reliable.
The purpose of this utility model realizes in the following manner: the continuous sample injector of a kind of adjustable stepping, comprise the one handle housing, one is installed in the suction liquid device of handle housing front end, and one is installed in stepping executing agency and in the handle housing is installed in governor motion in the handle housing.Wherein, described suction liquid device comprises the plastic injector more than or, one is fixed on the fairlead of handle housing front end, the slide plate that one piston rod tail end that can slide in fairlead, syringe is fixedlyed connected with it, and the reaming pressing plate that is connected with its perforation of an injection tube tail end fixedly connected with fairlead open front end, syringe; Described stepping executing agency comprises that side has saw shape tooth one by one, front end penetrates the fairlead rear portion and fixedlys connected with slide plate, can be in handle housing axially movable tooth bar pull bar, one trochoid is fixed in the handle housing, one end stretches out the outer support dental lamina hand of handle housing, end is fixed in the handle housing one by one, the back-moving spring that the other end is fixedlyed connected with an end of support dental lamina hand, end is the support tooth that pivotally is installed on the support dental lamina hand other end one by one, and one be installed in the other end that can force the support tooth on support tooth one end press down with the tooth bar pull bar on the stage clip of saw shape tooth engagement; Described governor motion comprise one be positioned at handle housing and empty be enclosed within on the tooth bar pull bar, the outside have screw thread, its rear end can limit the travel forward regulating sleeve of distance of support tooth, thereby and a sky be enclosed within regulating sleeve outer, can be in handle housing the original place around self axis rotation, it radially has one to run through the slide adjustment disk of pin of engagement of its wall and regulating sleeve outside major thread.
Further improvement of the utility model is that the front end at the injection tube of described plastic injector removably is installed with suction nozzle by a clamping device.
The utility model has the advantages that, adopted a pipe or multitube plastic injector to move liquid container, do not have wearing and tearing, repeatable accuracy height in the chamber.Owing to adopted the suction nozzle parts, during micro-suction, whole syringe can be not contaminated.Because fairlead is detachable, but so a tractor serves several purposes.The stepping mechanism that this device adopts, reliable in action is laborsaving, and is easy to manufacture, and driving-chain is short, thus the service precision height.And the governor motion that this device adopts then can carry out the adjusting and the control of suction liquid measure easily and reliably.
Below in conjunction with accompanying drawing embodiment of the present utility model is done detailed explanation:
Fig. 1 is the longitudinal section of the utility model first embodiment;
Fig. 2 is the cutaway view along the A-A line among Fig. 1;
Fig. 3 is the cutaway view along the B-B line among Fig. 2;
Fig. 4 is the outline drawing of the utility model second embodiment;
Fig. 5 is the outline drawing of the utility model the 3rd embodiment.
Referring to Fig. 1, the suction liquid device of present embodiment comprises four plastic injectors, and it is mainly partly formed by four, i.e. handle housing, suction liquid device, stepping executing agency and governor motion.
Wherein handle housing 12 can be mutual chimeric fastening the forming of being cut open along the plane of symmetry by two slit bamboo or chopped woods of housing.
And its suction liquid device comprises that one is fixed on the fairlead 16 of handle housing front end, one slide plate 5 of fitting and can in fairlead 16 inner chambers, slide with fairlead 16 internal chamber walls, one is fixed on the reaming pressing plate 17 at fairlead 16 front opening places, the piston rod 4 of the acid-fast alkali-proof abrasive rubber piston ring 19 that 2, four tail ends of parallel each other injection tube are fixed on the slide plate 5, front end has to be cooperated with injection tube 2 inner wall sealings that four tail ends are fixed on the reaming pressing plate 17 and connect with the reaming pressing plate.In addition, in order not pollute injection tube when the micro-suction, removably be fixed with suction nozzle 1 by clamping device 18 at the front end of each injection tube.The internal cavities of suction nozzle 1 is changeable, to be applicable to the suction of different amounts.In addition, also fixing a protective sleeve 3, having four on its front bulkhead and allow four through holes that injection tube therefrom passes through, reliably locating to help injection tube at the front end of fairlead 16.
The stepping executing agency of present embodiment is made of following mode; One side of tooth bar pull bar 11 has saw shape tooth, and its front end penetrates the rear portion of fairlead 16 and fixedlys connected with the slide plate 5 in the fairlead 16, and it can move axially along the through hole in the handle housing 12.Support dental lamina hand 9 is rotatably installed in the handle housing 12 by axle core screw 14, stretch out outside handle housing 12 its upper end, its lower end connects the rotatable end that supports tooth 13 that connecting of other part (not shown) by one, and connect other part place one stage clip (not shown) is installed also at this, this stage clip can force the other end of support tooth 13 to press down in case with tooth bar pull bar 11 on saw shape tooth engagement.Back-moving spring 6 one ends that are positioned at handle housing 12 are connected on the inwall of handle housing 12, and the other end is connected the appropriate position of support tooth spanner 9 upper ends, draws forward with the upper end that will support dental lamina hand 9 all the time.In order to regulate the position of returning backward, a stop screw 10 is installed in the rear end of handle housing 12 with the lower end of rigid staybolt tooth spanner 9.
Governor motion in the present embodiment is made of following mode: regulating sleeve 7 skies that outer surface has the king bolt line are enclosed within on the tooth bar pull bar 11, and described regulating sleeve 7 is positioned at the place, front of support tooth 13.Fig. 2 reviews, adjustment disk 8 skies are enclosed within on the regulating sleeve 7, upwards there are one or two screwed holes that run through its wall in the footpath of this adjustment disk 8, and the pin 20 that is engaged in this screwed hole stretches out outside the inwall of this adjustment disk 8 inwards, and this external part can slide with the major thread on regulating sleeve 7 outer surfaces and mesh.Adjustment disk 8 can be in handle housing 12 original place around self axis rotation, and adjustment disk 8 can be exposed to handle housing 12 outer (as shown in Figure 4 and Figure 5) in the part near the place, left and right side of handle housings 12, so as outside handle housing turn adjustment disk 8.Support tooth 13 each proal distances can be regulated and limit to this arrangement of adjustment disk 8 and regulating sleeve 7, drives the distance that the 11 each steppings of tooth bar pull bar move forward thereby can limit support tooth 13 as required.In addition,, as seen also have an adjusting ring 15 skies to be enclosed within on the tooth bar pull bar 11 in the place ahead of regulating sleeve 7 in conjunction with consulting Fig. 3, adjusting ring 15 a tapped through hole arranged in the radial direction.Dog screw 21 engagement is by this tapped through hole, aiming at and to compress on the some little indenture 22 that is distributed on tooth bar pull bar 11 opposite sides, thereby adjusting ring 15 removably is fixed on the certain position of tooth bar pull bar 11.Adjusting ring 15 is walked the aft bulkhead by fairlead 16.Tooth bar pull bar 11 displacement backward can be regulated and limit to adjusting ring 15 with being used of regulating sleeve 7, thereby can limit the liquid absorption of this device as required.
In addition, in order in use accurately to indicate lifting rate (or claiming liquid volume added), can be on the outer circumference of adjustment disk 8 mark tooth bar pull bar 11 move axially the mark of distance, in addition again at the lateral marks up stroke scale or the flow scale of tooth bar pull bar 11, so that can replication what of lifting rate, and be convenient to the selection of each full scale before the work.
Now referring to Fig. 4, this is the outline drawing of the utility model second embodiment, and it is the continuous sample injector of the adjustable stepping of a kind of single hose.Except in its suction liquid device, including only a syringe, and other of this device be relevant part is corresponding dwindle outside, the arrangement and the action principle of this each other part of device, and the arrangement of parts of other mechanism is all identical with first embodiment shown in Figure 1 with syntagmatic.
Now referring to Fig. 5, this is the outline drawing of the utility model the 3rd embodiment, and it is the continuous sample injector of the adjustable stepping of a kind of eight tubular types.Comprise eight syringes in the suction liquid device except it, and outside other relevant corresponding expansion of part of this device, the arrangement and the action principle of this each other part of device, and the arrangement of parts of other mechanism is all identical with above-mentioned two embodiment with syntagmatic.
Now introduce operation principle of the present utility model, before bringing into use, tooth bar pull bar 11 is pushed forward to the end, liquid absorption as required pulls back tooth bar pull bar 11 then, and watch scale on the tooth bar pull bar 11 simultaneously, when arriving needed liquid absorption, stop drag (cross-sectional area that the liquid absorption of this moment equals injection tube is multiplied by tooth bar pull bar pull distance, or is multiplied by the injection tube number again).This moment or before this, rotation adjustment disk 8, regulating sleeve 7 is moved in handle housing 12 vertically, according to needed each lifting rate, regulating sleeve 7 is adjusted to a certain appropriate location, the rear end face that makes regulating sleeve 7 keeps a suitable distance with the front end of support tooth 13, and this distance in fact to be exactly tooth bar pull bar 11 quilts support tooth spanners 9 promotes the distance once of stepping forward at every turn, also have corresponding mark to represent the stepping amount on adjustment disk 8 outer circumference at this moment.The upper end of pressing support tooth spanner 9, support tooth spanner 9 overcomes the pulling force of back-moving spring 6, and drives support tooth 13 and promote tooth bar pull bar 11 forward, till the front end of support tooth 13 is run into the rear end face of regulating sleeve 7, at this moment, can check lifting rate from the scale on the tooth bar pull bar 11.After hand leaves the upper end of support tooth spanner 9, under the effect of back-moving spring 6, the upper end of support tooth spanner 9 moves forward, and drive its lower end and reset backward, because the power that reset force forces support tooth 13 to press down greater than stage clip, so 13 disengagings of support tooth then move with the engagement of sawing the shape tooth and reset, reseting procedure is till stop screw 10 is run in the lower end of support tooth spanner 9.Then can carry out discharge opeing process next time again.If the liquid of the multiple easy pollution of suction trace, as long as transposing suction nozzle parts 1, can guarantee the normal use of whole syringe like this and not contaminated.
Should be well understood to, the plastic injector quantity quantity that not necessarily the foregoing description exemplified in the suction liquid device can also have other quantity.
Label identical in institute's drawings attached is all represented identical parts.
Claims (7)
1, the continuous sample injector of a kind of adjustable stepping, comprise the one handle housing, one is installed in the stepping executing agency in the handle housing, one is installed in the suction liquid device that governor motion and in the handle housing is installed in the handle housing front end, it is characterized in that, described suction liquid device comprises the plastic injector more than or, one is fixed on the fairlead of handle housing front end, one can slide in fairlead, the slide plate that is fixedly linked with the piston rod tail end of syringe, and one fixedly connected with fairlead open front end, the reaming pressing plate that the injection tube tail end of syringe is connected with its perforation; Described stepping executing agency comprises that side has saw shape tooth one by one, front end penetrates the fairlead rear portion and fixedlys connected with slide plate, can be in handle housing axially movable tooth bar pull bar, one trochoid is fixed in the handle housing, one end stretches out the outer support tooth spanner of handle housing, end is fixed in the handle housing one by one, the back-moving spring that the other end is fixedlyed connected with an end of support tooth spanner, end is the support tooth that pivotally is installed on the support tooth spanner other end one by one, and one be installed in the other end that can force the support tooth on support tooth one end press down with the tooth bar pull bar on the stage clip of saw shape tooth engagement; Described governor motion comprise one be positioned at handle housing and the empty lateral surface that is enclosed within on the tooth bar pull bar have major thread, its rear end can limit the travel forward regulating sleeve of distance of support tooth, thereby a sky be enclosed within regulating sleeve outer, can be in handle housing the original place around self axis rotation, it radially has one to run through the slide adjustment disk of pin of engagement of its wall and regulating sleeve outside screw.
2, the continuous sample injector of adjustable stepping according to claim 1 is characterized in that, by a clamping device suction nozzle is installed removably at the front end of the injection tube of described plastic injector.
3, the continuous sample injector of adjustable stepping according to claim 1 is characterized in that, moves axially the mark of distance when having a stepping of expression tooth bar pull bar on the adjustment disk outer circumference.
4, the continuous sample injector of adjustable stepping according to claim 3 is characterized in that, an adjusting ring that removably is fixed on the tooth bar pull bar is arranged in the front of regulating sleeve.
5, the continuous sample injector of adjustable stepping according to claim 4 is characterized in that, described tooth bar pull bar also have a side some equidistant little indentures that distributing, and indicate stroke mark or flow scale; One screwed hole that radially runs through is arranged on the adjusting ring, and one is pressing described little indenture with the dog screw end of this screwed hole engagement, thereby described adjusting ring removably is fixed on the certain position of tooth bar pull bar.
6, the continuous sample injector of adjustable stepping according to claim 1 is characterized in that, adjustable ground is being fixed a stop screw that the other end set a distance of described handle is return on the described handle housing.
7, the continuous sample injector of adjustable stepping according to claim 1 is characterized in that, is fixing having the through hole that allows all injection tubes therefrom pass through, the protective sleeve to help injection tube reliably to locate on its front bulkhead at the front end of described fairlead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92240969 CN2139854Y (en) | 1992-11-23 | 1992-11-23 | Adjustable step continous sample adding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92240969 CN2139854Y (en) | 1992-11-23 | 1992-11-23 | Adjustable step continous sample adding apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2139854Y true CN2139854Y (en) | 1993-08-11 |
Family
ID=33781170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92240969 Expired - Fee Related CN2139854Y (en) | 1992-11-23 | 1992-11-23 | Adjustable step continous sample adding apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2139854Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7267800B2 (en) | 2000-06-22 | 2007-09-11 | Shimadzu Corporation | Drainage system |
| CN100569374C (en) * | 2004-05-10 | 2009-12-16 | 伯恩德·斯坦布伦纳 | Device for receiving and discharging a fluid |
| CN111135885A (en) * | 2020-01-14 | 2020-05-12 | 安徽奇书生物科技有限公司 | Variable injection slide block |
-
1992
- 1992-11-23 CN CN 92240969 patent/CN2139854Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7267800B2 (en) | 2000-06-22 | 2007-09-11 | Shimadzu Corporation | Drainage system |
| CN100569374C (en) * | 2004-05-10 | 2009-12-16 | 伯恩德·斯坦布伦纳 | Device for receiving and discharging a fluid |
| CN111135885A (en) * | 2020-01-14 | 2020-05-12 | 安徽奇书生物科技有限公司 | Variable injection slide block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |