CN104819863A - Sample injection tube - Google Patents
Sample injection tube Download PDFInfo
- Publication number
- CN104819863A CN104819863A CN201510220654.XA CN201510220654A CN104819863A CN 104819863 A CN104819863 A CN 104819863A CN 201510220654 A CN201510220654 A CN 201510220654A CN 104819863 A CN104819863 A CN 104819863A
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- China
- Prior art keywords
- sample
- feeding pipe
- support ring
- sample feeding
- pipeline
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Abstract
The invention discloses a sample injection tube which includes a pipeline for injecting or discharging a to-be-test sample, a mounting base arranged on an upper end of the pipeline and a supporting ring arranged on the bottom end of the pipeline. A supporting base sleeves externally the supporting ring. A plurality of gas channels are formed between the mounting base and the supporting base. A plurality of L-shaped channels are formed in the mounting base, wherein one ends of the L-shaped channels are communicated with the gas channels and the other ends of the L-shaped channels are communicated with the supporting ring. Action on the to-be-test sample is achieved through air pores formed on the supporting ring. According to the invention, the structures of the supporting base and the supporting ring in the sample injection tube are optimized so that the functions of suspension and rotation of the sample are achieved by one gas flow, thereby reducing processing difficult and processing precision, and furthermore reducing processing cost. The sample injection tube is convenient to manufacture and assemble.
Description
Technical field
The invention belongs to nuclear magnetic resonance spectrometer field, more specifically, relate to the sample feeding pipe of a kind of sample turnover nuclear magnetic resonance spectrometer.
Background technology
Requisite parts when sample feeding pipe is nuclear magnetic resonance spectrometer analysis sample, entering of sample, go out passage, sample feeding pipe is a kind of tubular structural member of hollow, vertically be installed on the superconducting magnet center of nuclear magnetic resonance spectrometer, because sample has certain weight, and be positioned over the bottom of sample feeding pipe, in order to sample is put into sample feeding pipe lentamente, need to provide one upwards and the ever-reduced air-flow of flow, sample is made to enter sample feeding pipe dynamic lower slowly decline of the holder of air-flow, contrary, when sample is ejected sample feeding pipe by needs, sample feeding pipe needs to provide upwards and the air-flow that constantly increases of flow, sample is made to eject sample feeding pipe under the holder of air-flow is dynamic, simultaneously, sometimes in order to realize the test request of specific function, sample needs to rotate bottom sample feeding pipe, the air-flow now provided is that certain air-flow upwards makes sample be in suspended state, and the air-flow of a circumferencial direction is provided, sample is rotated.
Sample feeding pipe of the prior art is above pipeline, arrange a shaft collar, on have the gas channel that accessed sample sample introduction, gone out sample and spinfunction and measure the cable splice of speed of rotation, a supporting is provided with below pipeline, supporting inside is provided with the support ring of a multiple cavity, be connected with flexible tracheae and flexible cable between cable splice with supporting, but there is following defect in the sample feeding pipe of above-mentioned prior art:
(1) shaft collar above pipeline realizes the linkage function with tracheae, cable connector of fixing of sample feeding pipe simultaneously, but pipeline usually needs the position adjusting shaft collar when mounted, the tracheae connected below it and cable cause the adjustment of shaft collar and install all more difficult;
(2) pipeline is wrapped cable and tracheae, when adjusting the position of shaft collar, the position of cable and tracheae needs to readjust, the problem such as be easy to occur that tracheae is extruded, cable or tracheae come off, and installs comparatively difficulty;
(3) position of shaft collar is without obvious mark, at sample feeding pipe folding dress or when readjusting position, needs repeatedly to carry out adjusting and tests to determine optimum position point;
(4) realize using a road suspension Qi He mono-road rotary pneumatic respectively when rotating, suspension gas straight up, sample is made to be in suspended state, rotary pneumatic is horizontal circle circumferential direction, sample is rotated, and such design needs the input of at least 3 road air-flows, and the design of Pneumatic component is very complicated, accuracy requirement is high, adds the manufacturing cost of sample feeding pipe.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of sample feeding pipe, its object is to provide the nuclear magnetic resonance spectrometer sample feeding pipe that a kind of structure is simple, cost is low and easy to install.
For achieving the above object, according to one aspect of the present invention, provide a kind of sample feeding pipe, it is characterized in that, this sample feeding pipe comprises the pipeline for realizing sample turnover, and be installed on the described mount pad of pipeline upper end and the support ring of its end, the outer cover of described support ring is provided with supporting seat, some gas channels are provided with between described mount pad and described supporting seat, some L-type passage are offered in described mount pad, its one end and described gas channel UNICOM, one end and described support ring region UNICOM in addition, and by being opened in stomatal action on described support ring wall in described sample, described support ring is provided with the hermetically-sealed construction of some projections, some air chambers are formed between hermetically-sealed construction and described supporting seat, the length of the vertical portion passage of described L-type passage is different, passage UNICOMs different is thus to described different air chamber, the support ring that described each air chamber is corresponding offers some air holes, air-flow acts on described sample by it thus.
Further, the end face of the close described sample of described support ring offers some rotation pores, and it runs through the described hermetically-sealed construction at its place, in the described hermetically-sealed construction of its correspondence, form circumferentially tangential multiple swirling eddy passages with end face with oblique angle simultaneously thus.
Further, described supporting seat is provided with the sensor for testing detected sample rotating speed.
Further, be arranged with regulating flange outside described pipeline, it is for regulating the fitting depth of described sample feeding pipe, and the outer wall of described pipeline is also provided with scale.
Further, described mount pad is provided with monitoring sensor, for detecting the turnover sample state of described sample.
Further, described gas channel is be fixed on the metal tube between described mount pad and described supporting seat.
Further, described metal tube is rising structure.
In general, the above technical scheme conceived by the present invention compared with prior art, can obtain following beneficial effect:
(1) optimize the structure of supporting seat and support ring, use the function that a road air-flow completes sample suspension and rotates, and do not need the gas sheet of mounting structure complexity again, reduce difficulty of processing, thus reduce processing cost, convenient manufacture and assembling;
(2) use the supporting seat below metal tube connecting tube, in use there will not be the situation of Pipeline damage, enhance the reliability of sample feeding pipe use, security, use convenient;
(3) above the pipeline of sample feeding pipe, be provided with jiont treatment seat and regulating flange, sample feeding pipe installed and is separated with tracheae, cable linkage function;
(4) on supporting seat and jiont treatment seat, be equipped with sensor, can detect bottom sample feeding pipe whether there is sample with top, make sample feeding pipe duty in use be in visual, controlled state.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of the sample feeding pipe according to the present invention's realization;
Fig. 2 is the structural representation of supporting seat of the sample feeding pipe realized according to the present invention;
Fig. 3 is the one-piece construction schematic diagram of support ring of the sample feeding pipe realized according to the present invention;
Fig. 4 is the front elevation of the sample feeding pipe according to the present invention's realization.
In all of the figs, identical Reference numeral is used for representing identical element or structure, wherein:
1-exhaust passage 2-jiont treatment seat 3-status monitoring sensor 4-regulating flange 5-scale 6-pipeline 7-supporting seat 8-support ring 9-sample introduction gas channel 10-swirling eddy passage 11-goes out sample gas channel 12-metal tube 13-upright opening 14-stopper 15-radial hole 16-testing sensor 17-rotation pore 18-first O-ring seal 19-first air chamber 20-second O-ring seal 21-second air chamber 22-and goes out sample pore 23-the 3rd O-ring seal.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
As shown in Figure 1, the sample feeding pipe that proposes of the present invention by supporting seat 7, support ring 8, pipeline 6, regulating flange 4 and jiont treatment seat 2, status monitoring sensor 3 and testing sensor 16, sample introduction gas channel 9, swirling eddy path 10, go out the parts such as sample gas channel 11 and exhaust passage 1 and form.
Wherein jiont treatment seat 2 is arranged at the upper end of pipeline 6, it installs the joint of various gas channel, jiont treatment seat 2 is also provided with the state that status monitoring sensor 3 detects sample turnover sample, this status monitoring sensor can be reflective photoelectric sensor, correlation electro-optical pickoff.The outer wall of pipeline 6 is provided with scale 5, can be moved up and down by regulating flange 4, thus quantitatively regulate the fitting depth of sample feeding pipe, flange 4 is the disk of two semicircles, be formed by connecting by the screw at two ends, the screw flange 4 of loose ends can move up and down along pipeline 6, arrives and needs the position of installing to tighten two end flanges, flange just can be held pipeline tightly and become to be integrated with it, and last flange is arranged on the fitting depth that the top of magnet of placing sample feeding pipe just determines sample feeding pipe.
Wherein support ring 8 is installed in the below of pipeline 6, supporting seat 7 is set in the outside of support ring 8, wherein the structure of supporting seat 7 as shown in Figure 2, supporting seat 7 is provided with upright opening 13 and radial hole 15 along the axis of pipeline 6, the central shaft of holes at grade, holes runs through mutually, the outside of radial hole is blocked by stopper 14, such upright opening 13 and radial hole 15 constitute the gas channel in L-type direction, and the gas channel reaching the different degree of depth this L-type direction thus by arranging upright opening 13 can UNICOM to the position of the differing heights of support ring 8, this supporting seat 7 has four groups of such gas channels, sensor 16 wherein supporting seat 7 is also equipped with for detecting the rotating speed of sample.
The one-piece construction of support ring 8 as shown in Figure 3, when support ring 8 is installed to the inside of supporting seat 7, the upper, middle and lower of support ring 8 is respectively provided with the first O-ring seal 18, second O-ring seal 20 and the 3rd O-ring seal 23, wherein, form air chamber 19 between first O-ring seal 18 and the second O-ring seal 20, between the second O-ring seal 20 and the 3rd O-ring seal 23, form air chamber 21.
Wherein sample introduction gas channel 9 is by pore more than L-type passage UNICOM to support ring 8 end face, and swirling eddy path 10 to air chamber 19, goes out sample gas channel 11 and exhaust passage 1 by L-type passage UNICOM to air chamber 21 by L-type passage UNICOM.
Wherein, the front elevation of support ring 8 as shown in Figure 4, support ring 8 end face there is the circumferentially tangential rotation pore 17 simultaneously becoming a fixed inclination with end face, form the jagged swirling eddy passage of triangle as illustrated in the drawing thus, the radial direction of the part of the air chamber 21 of support ring 8 is also provided with out sample pore 22.
End, exhaust passage is arranged on jiont treatment seat 2, which is provided with throttle valve control air capacity.
Principle of work of the present invention is as follows:
Sample feeding pipe install time its bottom with other part fits after form closed state, sample introduction gas channel 9 provides the pressurized air compared with air flow, make sample can hover over sample feeding pipe top under the holder of air-flow is dynamic, when air-flow reduces gradually, sample slowly can fall into sample feeding pipe, drop down onto the end face of support ring 8, otherwise when air-flow increases, sample is ejected in sample feeding pipe.
Swirling eddy path 10 passes into pressurized air, and after pressurized air enters into air chamber 19, gas discharges from rotating pore 17 end face being applied to sample.Rotate pore 17 and favour the lower surface of sample, the air-flow being applied to sample end face is the power that sample provides both direction: power perpendicular to sample end face upwards, sample is suspended, and end face and support ring 8 end face of sample depart from; Another power provides horizontal direction tangential force to sample, and sample can be rotated, and the size of adjusting air inflow quantity can change the rotating speed of sample.
Go out sample gas channel 11 and pass into pressurized air, after pressurized air enters into air chamber 21, gas enters into the below of sample from going out sample pore 22 thus holds up the ejection that top that sample rises to sample feeding pipe completes sample.
Tracheae between pipeline 6 top and supporting seat 7 and cable wiring passage are packaged in fixing metal tube 12.When regulating the installation site of sample feeding pipe, metal tube 12 does not need mobile, avoids tracheae and cable in background technology and is repeatedly wound around, folds, the problem that tracheae and cable come off.
Without any web member on regulating flange 4, only need the function of fixing sample feeding pipe, and regulating flange 4 can move up and down along pipeline 6 position regulating sample feeding pipe, pipeline 6 is provided with scale 5, the installation site of flange 4 can be determined exactly, avoid background technology by repeatedly adjusting the problem determining optimum position, sample feeding pipe can be disposablely easily in place.
The support ring 8 that the present invention proposes uses a road air-flow pass into air chamber 19 and rotate pore 17, realize suspension and the spinfunction of sample simultaneously, compared with background technology, the quantity of airflow decreasing air chamber and pass into, reduce the complexity of support ring 8, make the processing of support ring 8 easier, and the external pneumatic number of components of needs is reduced, reduce use cost.
Sensor 16 supporting seat 7 is equipped with for detecting the rotating speed of sample, whether this sensor can detect bottom sample feeding pipe simultaneously has sample to exist, it is by the chequered with black and white bar code on scanning samples, measure the rotating speed of sample, sensing station bar code region correspondence setting per sample, jiont treatment seat 2 is provided with status monitoring sensor 3, can be detected when sample is just put into sample feeding pipe or ejected from sample feeding pipe.The use of two sensors ensure that the security of sample, makes the duty of sample feeding pipe be in visual, controllable state.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a sample feeding pipe, it is characterized in that, this sample feeding pipe comprises the pipeline (6) for realizing sample turnover, and be installed on the mount pad (2) of described pipeline (6) upper end and the support ring (8) of its end, the outer cover of described support ring (8) is provided with supporting seat (7), some gas channels are provided with between described mount pad (2) and described supporting seat (7), described mount pad offers some L-type passage in (2), its one end and described gas channel UNICOM, one end and described support ring (8) region UNICOM in addition, and by being opened in stomatal action on described support ring (8) wall in described sample, described support ring (8) is provided with the hermetically-sealed construction (18 of some projections, 20, 23), some air chambers (19 are formed between hermetically-sealed construction and described supporting seat (7), 21), the length of the vertical portion passage of described L-type passage is different, passage UNICOMs different is thus to described different air chamber, the support ring (8) that described each air chamber is corresponding offers some air holes, air-flow acts on described sample by it thus.
2. sample feeding pipe as claimed in claim 1, it is characterized in that, the end face of the close described sample of described support ring (8) offers some rotation pores (17), and it runs through the described hermetically-sealed construction at its place, in the described hermetically-sealed construction of its correspondence, form circumferentially tangential multiple swirling eddy passages with end face with oblique angle simultaneously thus.
3. sample feeding pipe as claimed in claim 2, is characterized in that, described supporting seat (7) being provided with the sensor for testing detected sample rotating speed.
4. sample feeding pipe as claimed in claim 3, it is characterized in that, described pipeline (6) outside is arranged with regulating flange (4), and it is for regulating the fitting depth of described sample feeding pipe, and the outer wall of described pipeline (6) is also provided with scale (5).
5. sample feeding pipe as claimed in claim 4, it is characterized in that, described mount pad (2) is provided with monitoring sensor (3), for detecting the turnover sample state of described sample.
6. as the sample feeding pipe in claim 1-5 as described in any one, it is characterized in that, described gas channel is for being fixed on the metal tube between described mount pad (2) and described supporting seat (7).
7. sample feeding pipe as claimed in claim 6, it is characterized in that, described metal tube is rising structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510220654.XA CN104819863B (en) | 2015-05-04 | 2015-05-04 | A kind of sample feeding pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510220654.XA CN104819863B (en) | 2015-05-04 | 2015-05-04 | A kind of sample feeding pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104819863A true CN104819863A (en) | 2015-08-05 |
| CN104819863B CN104819863B (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510220654.XA Active CN104819863B (en) | 2015-05-04 | 2015-05-04 | A kind of sample feeding pipe |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020122745A1 (en) * | 2000-11-01 | 2002-09-05 | Jeol Ltd. | Analysis system and analysis method |
| US20050280416A1 (en) * | 2004-06-18 | 2005-12-22 | Bruker Biospin Gmbh | Method for introducing a liquid sample into an NMR spectrometer |
| CN103165389A (en) * | 2011-12-19 | 2013-06-19 | 中国科学院大连化学物理研究所 | Sample introduction device |
| CN103383399A (en) * | 2013-07-25 | 2013-11-06 | 中国科学院武汉物理与数学研究所 | Air-operated sample feeding device for laser detection nuclear magnetic resonance (NMR) signal device |
| CN204649458U (en) * | 2015-05-04 | 2015-09-16 | 武汉中科波谱技术有限公司 | A kind of sample feeding pipe |
-
2015
- 2015-05-04 CN CN201510220654.XA patent/CN104819863B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020122745A1 (en) * | 2000-11-01 | 2002-09-05 | Jeol Ltd. | Analysis system and analysis method |
| US20050280416A1 (en) * | 2004-06-18 | 2005-12-22 | Bruker Biospin Gmbh | Method for introducing a liquid sample into an NMR spectrometer |
| CN103165389A (en) * | 2011-12-19 | 2013-06-19 | 中国科学院大连化学物理研究所 | Sample introduction device |
| CN103383399A (en) * | 2013-07-25 | 2013-11-06 | 中国科学院武汉物理与数学研究所 | Air-operated sample feeding device for laser detection nuclear magnetic resonance (NMR) signal device |
| CN204649458U (en) * | 2015-05-04 | 2015-09-16 | 武汉中科波谱技术有限公司 | A kind of sample feeding pipe |
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| Publication number | Publication date |
|---|---|
| CN104819863B (en) | 2017-06-13 |
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Address after: 430075, No. seven, No. 128, East Lake hi tech Development Zone, Wuhan, Hubei, Optics Valley Patentee after: WUHAN ZHONGKE NIUJIN WAVE SPECTRUM TECHNOLOGY Co.,Ltd. Address before: 430075, No. seven, 128 Optics Valley Road, East Lake New Technology Development Zone, Hubei, Wuhan Patentee before: WUHAN ZHONGKE MR TECHNOLOGY Co.,Ltd. |