CN206671272U - A kind of automatic sampler skill bilayer sample introduction syringe needle - Google Patents
A kind of automatic sampler skill bilayer sample introduction syringe needle Download PDFInfo
- Publication number
- CN206671272U CN206671272U CN201720277978.1U CN201720277978U CN206671272U CN 206671272 U CN206671272 U CN 206671272U CN 201720277978 U CN201720277978 U CN 201720277978U CN 206671272 U CN206671272 U CN 206671272U
- Authority
- CN
- China
- Prior art keywords
- shaped frame
- movable plate
- way pipe
- needle
- guide rod
- 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
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Abstract
The utility model discloses a kind of automatic sampler skill bilayer sample introduction syringe needle,Including three groups of drive devices and liquid storage beaker,Cleaning fluid is stored in the liquid storage beaker,The drive device includes U-shaped frame,Guide rod,Movable plate,Reciprocal leading screw,Motor and belt,Movable plate is located in the notch of U-shaped frame,One end of the guide rod is threaded,Guide rod sequentially passes through the inner side of U-shaped frame and fixed with movable plate and by screw thread and U-shaped frame,The piston rod of the syringe is fixedly connected with corresponding movable plate,Valve is provided with three ports of the three-way pipe,Wherein a port of three-way pipe is connected by flexible pipe with nook closing member,The a port of three-way pipe is plugged in liquid storage beaker,And another port of three-way pipe and the injection port of liquid chromatograph connect,The utility model structure syringe needle is by covering the crosspointer header structure of skeleton symbol,It is effective to solve the problems, such as to block syringe needle and produce negative pressure,Improve operating efficiency and measuring accuracy.
Description
Technical field
Liquid chromatograph detection technique field is the utility model is related to, specially a kind of automatic sampler skill bilayer sample introduction needle
Head.
Background technology
Prior art is that front end of the syringe needle is stainless steel syringe needle opening with syringe, when inserting sample bottle, rubber pad
Chip can be produced when pierced, easily blocks syringe needle, syringe can not be normally extracted sample.The syringe needle of other prior art is inserted
Enter to extract sample.Because being sealing, flowed into without air, so negative pressure can be produced in sample bottle afterwards several times by extracting, influence to take out
The quantity precision of sample is taken, therefore, proposing a kind of automatic sampler skill bilayer sample introduction syringe needle.
The content of the invention
The purpose of this utility model is to provide a kind of automatic sampler skill bilayer sample introduction syringe needle, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the utility model provides following technical scheme：A kind of automatic sampler skill bilayer sample introduction needle
Head, including three groups of drive devices and liquid storage beaker, cleaning fluid are stored in the liquid storage beaker, the drive device includes U
Type frame, guide rod, movable plate, reciprocal leading screw, motor and belt, movable plate are located in the notch of U-shaped frame, and the one of the guide rod
End is threaded, and guide rod sequentially passes through the inner side of U-shaped frame and fixed with movable plate and by screw thread and U-shaped frame, the past multifilament
Thick stick sequentially passes through the outside of U-shaped frame and is rotatablely connected with movable plate and by bearing and U-shaped frame, and motor is fixedly installed on U-shaped frame
Side, and reciprocal leading screw one end all extends to the outside of U-shaped frame by the center axis connection of belt and motor, the movable plate,
Needle guard seat, needle core base and syringe, the needle guard seat and needle core base are connected on the movable plate that three groups of drive devices are set
T-shaped piece is disposed as, T-shaped piece of lower end is respectively provided with external screw thread, and T-shaped piece is plugged on movable plate by internal and external threads, institute
State and needle guard is provided through in the middle part of needle guard seat, nook closing member is provided through in the middle part of needle core base, and nook closing member is plugged in needle guard, institute
The piston rod for stating syringe is fixedly connected with corresponding movable plate, and the lower end of syringe is socketed with three-way pipe, the three-way pipe
Three ports on be provided with valve, the wherein a port of three-way pipe is connected by flexible pipe with nook closing member, one of three-way pipe
Port is plugged in liquid storage beaker, and the injection port of another port of three-way pipe and liquid chromatograph connects.
Preferably, the internal diameter of the needle guard is more than nook closing member external diameter, and the nook closing member is vertical setting with needle guard.
Preferably, the guide rod, which is set, is no less than two, and wear-resistant coating is set on the outer surface of the guide rod.
Compared with prior art, the beneficial effects of the utility model are：The utility model structure syringe needle is by covering skeleton symbol
Crosspointer header structure, effectively solve the problems, such as to block syringe needle and produce negative pressure, improve operating efficiency and measuring accuracy.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is needle guard seat of the present utility model, needle guard, needle core base and nook closing member structural representation.
In figure：Drive device 1, U-shaped frame 2, guide rod 3, movable plate 4, reciprocal leading screw 5, motor 6, belt 7, needle guard seat 8,
Needle guard 9, needle core base 10, nook closing member 11, flexible pipe 12, three-way pipe 13, cleaning fluid beaker 14, syringe 15.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：A kind of automatic sampler skill bilayer sample introduction syringe needle,
Including three groups of drive devices 1 and liquid storage beaker 14, store cleaning fluid in liquid storage beaker 14, drive device 1 include U-shaped frame 2,
Guide rod 3, movable plate 4, reciprocal leading screw 5, motor 6 and belt 7, movable plate 4 are located in the notch of U-shaped frame 2, and the one of guide rod 3
End is threaded, and guide rod 3 sequentially passes through the inner side of U-shaped frame 2 and fixed with movable plate 4 and by screw thread and U-shaped frame 2, guide rod
3 set and are no less than two, set wear-resistant coating on the outer surface of guide rod 3, reciprocal leading screw 5 sequentially pass through the outside of U-shaped frame 2 with
Movable plate 4 is simultaneously rotatablely connected by bearing and U-shaped frame 2, and motor 6 is fixedly installed on the side of U-shaped frame 2, and reciprocal one end of leading screw 5
By the center axis connection of belt and motor 6, movable plate 4 all extends to the outside of U-shaped frame 2, the shifting that three groups of drive devices 1 are set
It is connected to needle guard seat 8, needle core base 10 and syringe 15 on dynamic plate, needle guard seat 8 and needle core base 10 are disposed as T-shaped piece, T-shaped
The lower end of block is respectively provided with external screw thread, and T-shaped piece is plugged on movable plate 4 by internal and external threads, and the middle part of needle guard seat 8, which is run through, to be set
Needle guard 9 is equipped with, the middle part of needle core base 10 is provided through nook closing member 11, and nook closing member 11 is plugged in needle guard 9, and the internal diameter of needle guard 9 is big
In the external diameter of nook closing member 11, nook closing member 11 is vertical setting with needle guard 9, and the piston rod of syringe 15 is fixedly connected with corresponding movable plate 4,
And the lower end of syringe 15 is socketed with three-way pipe 13, and valve, wherein three-way pipe 13 are provided with three ports of three-way pipe 13
A port connected by flexible pipe 12 with nook closing member 11, a port of three-way pipe 13 is plugged in liquid storage beaker 14, and threeway
Another port of pipe 13 and the injection port of liquid chromatograph connect.
Cover skeleton symbol crosspointer header structure, three steps of operation principle point
The first step:Rotated by reciprocal leading screw 5 and down move needle guard 9, be inserted into sample bottle, in order to be inserted through rubber
Rubber washer.
Second step:Nook closing member 11 is down moved by rotating another reciprocal leading screw 5, inserted by needle guard 9 in sample bottle
Gone inside sample.
3rd step:By rotating the reciprocal leading screw 5 close to syringe 15, sample is drawn into syringe 15 by nook closing member 11
In, then be injected into instrument and tested by the injection port of liquid chromatograph.
Vertical up-or-down movement between needle guard 9 and nook closing member 11, the diameter of needle guard 9 is more than the diameter of nook closing member 11, so between meeting
There is certain space, outside air can enter sample bottle by needle guard completely, will not produce negative pressure, contribute to sample extraction
The quantity degree of accuracy.
Other needle guard 9 first inserts sample bottle, and diameter is bigger than general nook closing member 11, it is not easy to is blocked, even if being blocked, works as pin
When core 11 down moves, the power for also having very little releases it, will not block nook closing member 11, does not interfere with the normal work of nook closing member 11
Make, substantially increase operating efficiency, greatly improve test accuracy.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (3)
1. a kind of automatic sampler skill bilayer sample introduction syringe needle, including three groups of drive devices（1）With liquid storage beaker（14）, its feature exists
In：The liquid storage beaker（14）Inside store cleaning fluid, the drive device（1）Include U-shaped frame（2）, guide rod（3）, move
Dynamic plate（4）, reciprocal leading screw（5）, motor（6）And belt（7）, movable plate（4）Positioned at U-shaped frame（2）Notch in, the guide rod
（3）One end be threaded, guide rod（3）Sequentially pass through U-shaped frame（2）Inner side and movable plate（4）And by screw thread with it is U-shaped
Frame（2）It is fixed, the reciprocal leading screw（5）Sequentially pass through U-shaped frame（2）Outside and movable plate（4）And pass through bearing and U-shaped frame
（2）Rotation connection, motor（6）It is fixedly installed on U-shaped frame（2）Side, and reciprocal leading screw（5）One end passes through belt and motor
（6）Center axis connection, the movable plate（4）All extend to U-shaped frame（2）Outside, three groups of drive devices（1）The movement of setting
Needle guard seat is connected on plate（8）, needle core base（10）And syringe（15）, the needle guard seat（8）With needle core base（10）It is all provided with
T-shaped piece is set to, T-shaped piece of lower end is respectively provided with external screw thread, and T-shaped piece is plugged on movable plate by internal and external threads（4）On, it is described
Needle guard seat（8）Middle part be provided through needle guard（9）, needle core base（10）Middle part be provided through nook closing member（11）, and nook closing member
（11）It is plugged on needle guard（9）In, the syringe（15）Piston rod and corresponding movable plate（4）It is fixedly connected, and syringe
（15）Lower end be socketed with three-way pipe（13）, the three-way pipe（13）Three ports on be provided with valve, wherein three-way pipe
（13）A port pass through flexible pipe（12）With nook closing member（11）Connection, three-way pipe（13）A port be plugged on liquid storage beaker
（14）In, and three-way pipe（13）Another port and liquid chromatograph injection port connect.
A kind of 2. automatic sampler skill bilayer sample introduction syringe needle according to claim 1, it is characterised in that：The needle guard（9）
Internal diameter be more than nook closing member（11）External diameter, the nook closing member（11）With needle guard（9）It is vertical setting.
A kind of 3. automatic sampler skill bilayer sample introduction syringe needle according to claim 1, it is characterised in that：The guide rod
（3）Set and be no less than two, the guide rod（3）Outer surface on wear-resistant coating is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720277978.1U CN206671272U (en) | 2017-03-21 | 2017-03-21 | A kind of automatic sampler skill bilayer sample introduction syringe needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720277978.1U CN206671272U (en) | 2017-03-21 | 2017-03-21 | A kind of automatic sampler skill bilayer sample introduction syringe needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206671272U true CN206671272U (en) | 2017-11-24 |
Family
ID=60372885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720277978.1U Expired - Fee Related CN206671272U (en) | 2017-03-21 | 2017-03-21 | A kind of automatic sampler skill bilayer sample introduction syringe needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206671272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116256456A (en) * | 2023-03-16 | 2023-06-13 | 成都科林分析技术有限公司 | Extraction needle |
-
2017
- 2017-03-21 CN CN201720277978.1U patent/CN206671272U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116256456A (en) * | 2023-03-16 | 2023-06-13 | 成都科林分析技术有限公司 | Extraction needle |
| CN116256456B (en) * | 2023-03-16 | 2023-12-22 | 成都科林分析技术有限公司 | extraction needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 Termination date: 20180321 |