CN208366928U - A kind of gas chromatograph with automated needle changeover inserting needle function - Google Patents
A kind of gas chromatograph with automated needle changeover inserting needle function Download PDFInfo
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- CN208366928U CN208366928U CN201821144683.8U CN201821144683U CN208366928U CN 208366928 U CN208366928 U CN 208366928U CN 201821144683 U CN201821144683 U CN 201821144683U CN 208366928 U CN208366928 U CN 208366928U
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- needle
- crossbeam
- support arm
- syringe needle
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Abstract
The utility model discloses a kind of gas chromatographs with automated needle changeover inserting needle function, including chromatograph ontology and sample injector, the chromatograph ontology upper horizontal is provided with crossbeam, the one end of the beam is equipped with punch block, the punch block can be moved along the direction perpendicular to the crossbeam length, the punch block includes horizontally disposed transverse slat, at least two mounting holes are vertically provided through on the transverse slat, the syringe needle different with length is installed in mounting hole, the syringe needle upper end is installation end, lower end is insertion end, limited position mechanism is set between the installation end of the syringe needle and the mounting hole；The sample injector include it is vertically arranged and with the matched needle tubing of the installation end of the syringe needle, the sample injector is mounted on the crossbeam by mobile mechanism.The advantages of the utility model has a high degree of automation, and detection efficiency is high and the accuracy and high reliablity of testing result.
Description
Technical field
The utility model relates to gas chromatograph techniques fields, and in particular to a kind of gas with automated needle changeover inserting needle function
Chromatography.
Background technique
Gas chromatograph refers to the chromatography instrument for using gas as mobile phase.Gas chromatograph includes chromatograph sheet
Body is provided with chromatographic column placement region on chromatograph ontology, is additionally provided on chromatograph ontology for injecting sample into chromatographic column
The sample injector and drive sample injector of product move to the power mechanism of chromatographic column placement region.The sample introduction needle of existing sample injector is solid
Dingan County when the sample volume required for chromatographic column is more than the range of sample introduction needle, needs to be replaced manually on power mechanism,
In replacement, it is necessary to which all power-off is shut down, and seriously affects the analysis efficiency of gas chromatograph, and increase the work of staff
Make burden and workload, the degree of automation is low, and manually after replacement, can generate pollution to sample injector, influence detection knot
The accuracy of fruit.
Utility model content
In view of the above shortcomings of the prior art, the technical problem to be solved by the utility model is to how to provide one kind certainly
Dynamicization degree is high, detection efficiency is high and the accuracy of testing result and high reliablity with automated needle changeover inserting needle function
Gas chromatograph.
In order to solve the above-mentioned technical problem, the utility model uses the following technical solution:
A kind of gas chromatograph with automated needle changeover inserting needle function, including chromatograph ontology and sample injector, the color
Spectrometer ontology upper horizontal is provided with crossbeam, and the one end of the beam is equipped with punch block, and the punch block can be along perpendicular to the cross
The direction of beam length moves, and the punch block includes horizontally disposed transverse slat, is vertically provided through at least two on the transverse slat
Mounting hole is equipped with the syringe needle different with length in mounting hole, and the syringe needle upper end is installation end, and lower end is insertion end, described
Limited position mechanism is set between the installation end of syringe needle and the mounting hole；The sample injector include it is vertically arranged and with the syringe needle
The matched needle tubing of installation end, the sample injector is mounted on the crossbeam by mobile mechanism.
In this way, using mobile mechanism drive sample injector move, mobile mechanism be able to drive sample injector transversely with longitudinal fortune
Dynamic, horizontal and vertical to respectively refer to along crossbeam length direction and perpendicular to crossbeam length direction, sample injector includes needle tubing, as needed
The height of the sample bottle of sample introduction and sample volume it is of different sizes, suitable syringe needle is selected, so that syringe needle is moved in vertical direction
Upper to be correspondingly arranged with needle tubing lower end, syringe needle is placed in the mounting hole on transverse slat, is then moved to needle tubing using mobile mechanism
It above syringe needle, and is connect with suitable syringe needle, then drives syringe needle to be moved to above sample bottle under the action of mobile mechanism, then will
Syringe needle is inserted into will be in the sample input to sample bottle in needle tubing in sample bottle.The present apparatus is provided with the different needle of at least two length
Head can select the matched syringe needle of length according to the sample bottle of different length.And setting limited position mechanism, so that syringe needle is being installed
That installs in hole is stronger, is convenient for changing, reduces the time of sample bottle sample introduction, avoid that sample exposes in air when
Between, it can preferably improve the degree of automation of whole device and the reliability of sample analysis result.
As optimization, the sample injector includes the cabinet of lower ending opening setting, in the cabinet along the vertical direction on to
Under be disposed with electric pushrod, air pump and needle tubing, the electric pushrod upper end is fixedly mounted in the cabinet, lower end to
It is lower stretch out simultaneously be fixedly connected with air pump, the air pump is fixedly connected with the needle tubing upper end, and the gas vent of the air pump and
The connection of gas inner cavity is arranged in needle tubing, is provided with piston, the installation end phase of the needle tubing lower end and the syringe needle in the needle tubing
Match.
In this way, drive air pump and needle tubing move up and down in use, electric pushrod acts, it can preferably make needle tubing
Lower end and syringe needle upper end, which compress, to be connected, and then air pump is evacuated, so that needle tubing inner piston moves upwards, is taken out using needle tubing lower end
Sample, when needing the sample introduction into sample bottle, air pump outlet, so that piston moves downward in needle tubing, by the sample pressure of needle tubing lower end
Out, easy to use, it can preferably be sampled and sample introduction.
As optimization, the position-limit mechanism includes the first limit that the opposite two sides of installation end of the syringe needle are arranged in
Plate, the first limit plate parallel beneath and is arranged at intervals with the second limit plate, and first limit plate and the second limit plate are equal
Horizontally disposed, mounting hole horizontal direction side is provided with opening, and the opening width is straight with the installation end of the syringe needle
Diameter matches, and the distance between the thickness of the transverse slat and first limit plate to the second limit plate match.
In this way, the first limit plate and the second limit plate of syringe needle upper end are located at the two sides up and down of transverse slat, transverse slat is utilized
Syringe needle is mounted on transverse slat the support force of the first support plate, when needle tubing lower end is inserted into the installation end of syringe needle, benefit
It drives sample injector mobile with mobile mechanism, so that needle tubing moves, syringe needle is taken out from transverse slat, syringe needle is installed and removed
Convenient, structure is simple.
As optimization, the punch block further includes the riser being fixedly connected with the transverse slat, riser upper end edge length side
To sliding block is fixedly installed with, the crossbeam lower surface is provided with sliding slot, and the sliding slot both ends are matched through setting, the sliding block sliding
It closes in the sliding slot, the sliding block upper surface is fixedly installed with rack gear, is fixedly installed in the crossbeam and nibbles with the rack gear
The gear of transmission is closed, the gear is fixedly connected with the output shaft of first motor, and the first motor is fixedly mounted on the cross
In beam.
In this way, first motor acts, band moving gear is rotated, and gear band carry-over bar is mobile, and then mobile with motion plate, so that
Syringe needle on transverse slat is mobile, facilitates the syringe needle of sample injector selection different length.
As optimization, the mobile mechanism includes horizontally disposed first support arm, and the first support arm is perpendicular to the cross
Beam length direction is arranged, and the first engine for driving first support arm to move along crossbeam length direction is provided in the crossbeam
Structure, first power mechanism are connect with first support arm by link block, are provided on the link block for driving first
Arm is along the second power mechanism moved perpendicular to the crossbeam length direction, described first support arm one end and the fixed company of the cabinet
It connects.
In this way, the first power mechanism drives first support arm to move along crossbeam length direction, the second power mechanism drives first
Support arm can preferably adjust the position of needle tubing along moving perpendicular to crossbeam length direction, what more convenient needle tubing was connect with syringe needle
Accuracy, while facilitating and being fed into sample bottle.
As optimization, first power mechanism includes the lead screw being arranged in the crossbeam, the lead screw length direction
Consistent with the crossbeam length direction, the one end of the beam is fixedly connected with the output shaft of the second motor, and second motor is solid
In the crossbeam, the crossbeam is located above the gear for Dingan County, and be screwed on attaching nut on the lead screw, on the crossbeam
Surface is provided through guide groove inside and outside the crossbeam length direction, and guide pad is fixedly installed on the nut, described to lead
It is slidably fitted in the guide groove to block and the guide pad upper end is fixed with the link block after the guide groove and connected
It connects.
In this way, the second motor rotates, lead screw rotation is driven, lead screw drives nut mobile, and nut drives guide pad along guiding
Slot is mobile, and guide pad drives link block mobile, can preferably drive first support arm to move along crossbeam length direction.
As optimization, second power mechanism includes the cylinder being fixedly mounted in the first support arm, the cylinder
It is arranged along the first support arm length direction, the first support arm lower surface is inside and outside along its length to be provided through strip hole,
Connecting rod is sliding combined in the strip hole, the connecting rod lower end is fixedly connected with the link block upper end, the connection
Bar upper end is fixedly connected with connecting plate, and the connecting plate is vertically provided in the first support arm, the extension end of the cylinder with
The connecting plate vertical surface is fixedly connected.
In this way, cylinder movement, the extension end of cylinder is fixedly connected with connecting plate, and connecting plate, which is fixed by the connecting rod, to be connected to
On link block, using the collapsing length adjustment first support arm of cylinder along the distance moved perpendicular to crossbeam length direction, structure letter
It is single, it is easy to use.
In conclusion the use of the new type has a high degree of automation, detection efficiency is high and the accuracy of testing result with
And the advantages of high reliablity.
Detailed description of the invention
Fig. 1 is the knot of the gas chromatograph described in specific embodiment of the present invention with automated needle changeover inserting needle function
Structure schematic diagram；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the schematic enlarged-scale view of syringe needle.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
When it is implemented, as shown in Figure 1-3, a kind of gas chromatograph with automated needle changeover inserting needle function, chromatograph sheet
1 upper horizontal of body is provided with crossbeam 2, and 2 one end of crossbeam is equipped with punch block, and punch block can be along the side perpendicular to 2 length of crossbeam
To movement, punch block includes horizontally disposed transverse slat 3, and at least two mounting holes 31, mounting hole 31 are vertically provided through on transverse slat 3
The syringe needle 32 different with length is inside installed, 32 upper end of syringe needle is installation end, and lower end is insertion end, the installation end and peace of syringe needle 32
Limited position mechanism is arranged between hole 31 in dress；Sample injector include it is vertically arranged and with the matched needle tubing 33 of the installation end of syringe needle 32, into
Sample device is mounted on crossbeam 2 by mobile mechanism.
In this way, using mobile mechanism drive sample injector move, mobile mechanism be able to drive sample injector transversely with longitudinal fortune
Dynamic, horizontal and vertical to respectively refer to along 2 length direction of crossbeam and perpendicular to 2 length direction of crossbeam, sample injector includes needle tubing 33, according to
Need the sample bottle of sample introduction height and sample volume it is of different sizes, suitable syringe needle 32 is selected, so that syringe needle 32 is moved to
It is correspondingly arranged on vertical direction with 33 lower end of needle tubing, syringe needle 32 is placed in the mounting hole 31 on transverse slat 3, then utilizes moving machine
Needle tubing 33 is moved to 32 top of syringe needle by structure, and is connect with suitable syringe needle 32, then drives needle under the action of mobile mechanism
First 32 are moved to above sample bottle, then syringe needle 32 is inserted into sample bottle will be in the sample input to sample bottle in needle tubing 33.The present apparatus
It is provided with the different syringe needle 32 of at least two length, the matched syringe needle 32 of length can be selected according to the sample bottle of different length.And
And setting limited position mechanism is convenient for changing so that syringe needle 32 is installed stronger in mounting hole 31, reduces sample bottle sample introduction
Time, avoid the time that sample exposes in air, can preferably improve the degree of automation and sample of whole device
The reliability of product analysis result.
In the present embodiment, sample injector includes the cabinet 4 of lower ending opening setting, in cabinet 4 along the vertical direction from top to bottom according to
Secondary to be provided with electric pushrod 41, air pump 42 and needle tubing 33,41 upper end of electric pushrod is fixedly mounted in cabinet 4, and lower end is downward
It stretches out and is fixedly connected with air pump 42, air pump 42 is fixedly connected with 33 upper end of needle tubing, and the gas vent of air pump 42 and needle tubing 33
Interior gas inner cavity connection is arranged, and is provided with piston 34 in needle tubing 33,33 lower end of needle tubing and the installation end of syringe needle 32 match.
In this way, drive air pump 42 and needle tubing 33 move up and down in use, electric pushrod 41 acts, can preferably make
33 lower end of needle tubing and 32 upper end of syringe needle is obtained to compress and connect, then air pump 42 is evacuated, so that 33 inner piston 34 of needle tubing moves upwards, it is sharp
It is sampled with 33 lower end of needle tubing, when needing the sample introduction into sample bottle, 41 outlet of air pump, so that the piston 34 in needle tubing 33 is downward
Movement extrudes the sample of 33 lower end of needle tubing, easy to use, can preferably be sampled and sample introduction.
In the present embodiment, position-limit mechanism includes the first limit plate 51 that the opposite two sides of installation end of syringe needle 32 are arranged in,
First limit plate, 51 parallel beneath and it is arranged at intervals with the second limit plate 52, the first limit plate 51 and the second limit plate 52 are horizontal
Setting, 31 horizontal direction side of mounting hole are provided with opening, and opening width and the diameter of the installation end of syringe needle 32 match, transverse slat
The distance between 3 thickness and first the 51 to the second limit plate of limit plate 52 match.
In this way, the first limit plate 51 and the second limit plate 52 of 32 upper end of syringe needle are located at the two sides up and down of transverse slat 3, benefit
With support force of the transverse slat 3 to the first support plate 51 syringe needle 32 is mounted on transverse slat 3, is inserted into syringe needle 32 in 33 lower end of needle tubing
Installation end in when, drive sample injector mobile using mobile mechanism, so that needle tubing 33 moves, by syringe needle 32 from transverse slat 3
It takes out, syringe needle 32 is installed and remove conveniently, and structure is simple.
In the present embodiment, punch block further includes the riser 6 being fixedly connected with transverse slat 3, and 6 upper end of riser is fixed along its length to pacify
Equipped with sliding block, 2 lower surface of crossbeam is provided with sliding slot, and sliding slot both ends are slidably fitted in sliding slot through setting, sliding block, table on sliding block
Face is fixedly installed with rack gear 61, and the gear 62 with 61 engaged transmission of rack gear, gear 62 and first motor are fixedly installed in crossbeam 2
63 output shaft is fixedly connected, and first motor 63 is fixedly mounted in crossbeam 2.
In this way, first motor 63 acts, band moving gear 62 is rotated, and gear 62 is mobile with carry-over bar 61, and then with motion plate 3
It is mobile, so that the syringe needle 32 on transverse slat 3 is mobile, facilitate the syringe needle 32 of sample injector selection different length.
In the present embodiment, mobile mechanism includes horizontally disposed first support arm 7, and first support arm 7 is long perpendicular to the crossbeam 2
Direction setting is spent, the first power mechanism for driving first support arm 7 to move along 2 length direction of crossbeam is provided in crossbeam 2, the
One power mechanism is connect with first support arm 7 by link block, is provided on link block for driving first support arm 7 along perpendicular to cross
Second power mechanism of 2 length direction of beam movement, 7 one end of first support arm is fixedly connected with cabinet 4.
In this way, the first power mechanism drives first support arm 7 to move along 2 length direction of crossbeam, the second power mechanism drives the
One support arm 7 is moved along perpendicular to 2 length direction of crossbeam, can preferably adjust the position of needle tubing 33, is more convenient needle tubing 33 and needle
The accuracy of first 32 connection, while facilitating and being fed into sample bottle.
In the present embodiment, the first power mechanism includes the lead screw 8 being arranged in crossbeam 2,8 length direction of lead screw and crossbeam 2
Length direction is consistent, and 2 one end of crossbeam is fixedly connected with the output shaft of the second motor 81, and the second motor 81 is fixedly mounted on crossbeam 2
Interior, crossbeam 2 is located at 62 top of gear, and be screwed on attaching nut 82 on lead screw 8, and 2 upper surface of crossbeam is passed through inside and outside 2 length direction of crossbeam
It wears and is equipped with guide groove, guide pad is fixedly installed on nut 82, guide pad is slidably fitted in guide groove and guide pad upper end
It is fixedly connected after guide groove with link block.
In this way, the second motor 81 rotates, lead screw 8 is driven to rotate, lead screw 8 drives nut 82 mobile, and nut 82 is with action-oriented
Block is moved along guide groove, and guide pad drives link block mobile, and first support arm 7 can preferably be driven to transport along 2 length direction of crossbeam
It is dynamic.
In the present embodiment, the second power mechanism includes the cylinder 9 being fixedly mounted in first support arm 7, and cylinder 9 is along first
The setting of 7 length direction of arm, 7 lower surface of first support arm is inside and outside along its length to be provided through strip hole, and sliding is matched in strip hole
Conjunction has connecting rod, and connecting rod lower end is fixedly connected with link block upper end, and connecting rod upper end is fixedly connected with connecting plate 83, connecting plate
83 are vertically provided in first support arm 7, and the extension end of cylinder 9 is fixedly connected with 83 vertical surface of connecting plate.
In this way, cylinder 9 acts, the extension end of cylinder 9 is fixedly connected with connecting plate 83, and connecting plate 83 is fixed by the connecting rod
Be connected on link block, using cylinder 9 collapsing length adjustment first support arm 7 along perpendicular to 2 length direction of crossbeam move away from
From structure is simple, easy to use.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that；
It can still modify to technical solution documented by previous embodiment, or to some or all of the technical features
It is equivalently replaced；And these are modified or replaceed, the utility model embodiment that it does not separate the essence of the corresponding technical solution
The range of technical solution should all cover in the claim of the utility model and the range of specification.
Claims (7)
1. a kind of gas chromatograph with automated needle changeover inserting needle function, which is characterized in that including chromatograph ontology and sample introduction
Device, the chromatograph ontology upper horizontal are provided with crossbeam, and the one end of the beam is equipped with punch block, and the punch block can be along vertical
It is moved in the direction of the crossbeam length, the punch block includes horizontally disposed transverse slat, is vertically provided through on the transverse slat
At least two mounting holes are equipped with the syringe needle different with length in mounting hole, and the syringe needle upper end is installation end, and lower end is insertion
End, is arranged limited position mechanism between the installation end of the syringe needle and the mounting hole；The sample injector include it is vertically arranged and with
The matched needle tubing of the installation end of the syringe needle, the sample injector are mounted on the crossbeam by mobile mechanism.
2. the gas chromatograph according to claim 1 with automated needle changeover inserting needle function, which is characterized in that the sample introduction
Device includes the cabinet of lower ending opening setting, is disposed with electric pushrod, air pump from top to bottom along the vertical direction in the cabinet
And needle tubing, the electric pushrod upper end are fixedly mounted in the cabinet, lower end extends downwardly and is fixedly connected with air pump, institute
It states air pump to be fixedly connected with the needle tubing upper end, and the gas vent of the air pump connect setting, the needle tubing with syringe intracavity
It is inside provided with piston, the needle tubing lower end and the installation end of the syringe needle match.
3. the gas chromatograph according to claim 2 with automated needle changeover inserting needle function, which is characterized in that the limit
Mechanism includes the first limit plate that the opposite two sides of installation end of the syringe needle are arranged in, the first limit plate parallel beneath and
It is arranged at intervals with the second limit plate, first limit plate and the second limit plate are horizontally disposed, the mounting hole horizontal direction
Side is provided with opening, and the opening width and the diameter of the installation end of the syringe needle match, the thickness of the transverse slat and institute
The distance between first limit plate to the second limit plate is stated to match.
4. the gas chromatograph according to claim 3 with automated needle changeover inserting needle function, which is characterized in that the punch block
It further include the riser being fixedly connected with the transverse slat, the riser upper end is fixedly installed with sliding block, the crossbeam along its length
Lower surface is provided with sliding slot, and the sliding slot both ends are through setting, and the sliding block is slidably fitted in the sliding slot, on the sliding block
Surface is fixedly installed with rack gear, is fixedly installed with the gear with rack gear engaged transmission in the crossbeam, the gear and the
The output shaft of one motor is fixedly connected, and the first motor is fixedly mounted in the crossbeam.
5. the gas chromatograph according to claim 4 with automated needle changeover inserting needle function, which is characterized in that the movement
Mechanism includes horizontally disposed first support arm, and the first support arm is arranged perpendicular to the crossbeam length direction, in the crossbeam
It is provided with the first power mechanism for driving first support arm to move along crossbeam length direction, first power mechanism and first
Support arm is connected by link block, is provided on the link block for driving first support arm along perpendicular to the crossbeam length direction
Second power mechanism of movement, described first support arm one end is fixedly connected with the cabinet.
6. the gas chromatograph according to claim 5 with automated needle changeover inserting needle function, which is characterized in that described first
Power mechanism includes the lead screw being arranged in the crossbeam, and the lead screw length direction is consistent with the crossbeam length direction, institute
It states one end of the beam to be fixedly connected with the output shaft of the second motor, second motor is fixedly mounted in the crossbeam, the cross
Beam is located above the gear, and be screwed on attaching nut on the lead screw, and the beam surface upper is along the crossbeam length direction
It is provided through guide groove outside, guide pad is fixedly installed on the nut, the guide pad is slidably fitted in the guide groove
Interior and described guide pad upper end is fixedly connected after passing through the guide groove with the link block.
7. the gas chromatograph according to claim 6 with automated needle changeover inserting needle function, which is characterized in that described second
Power mechanism includes the cylinder being fixedly mounted in the first support arm, and the cylinder is set along the first support arm length direction
It sets, the first support arm lower surface is inside and outside along its length to be provided through strip hole, the company of being sliding combined in the strip hole
Extension bar, the connecting rod lower end are fixedly connected with the link block upper end, and the connecting rod upper end is fixedly connected with connecting plate, institute
It states connecting plate to be vertically provided in the first support arm, the extension end of the cylinder and the fixed company of the connecting plate vertical surface
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821144683.8U CN208366928U (en) | 2018-07-18 | 2018-07-18 | A kind of gas chromatograph with automated needle changeover inserting needle function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821144683.8U CN208366928U (en) | 2018-07-18 | 2018-07-18 | A kind of gas chromatograph with automated needle changeover inserting needle function |
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| CN208366928U true CN208366928U (en) | 2019-01-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110356575A (en) * | 2019-06-26 | 2019-10-22 | 浙江同创空间技术有限公司 | A kind of unmanned plane with video camera safeguard function |
-
2018
- 2018-07-18 CN CN201821144683.8U patent/CN208366928U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110356575A (en) * | 2019-06-26 | 2019-10-22 | 浙江同创空间技术有限公司 | A kind of unmanned plane with video camera safeguard function |
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