CN210834794U

CN210834794U - Automatic sample introduction mechanism of gas chromatograph

Info

Publication number: CN210834794U
Application number: CN201921370866.6U
Authority: CN
Inventors: 王梦哲
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-06-23
Anticipated expiration: 2029-08-22

Abstract

The utility model relates to the technical field of gas chromatograph detection, in particular to an automatic sampling mechanism of a gas chromatograph, which comprises a gas chromatograph body, wherein a placing groove is arranged at the top of the gas chromatograph body, a fixed sleeve is fixedly arranged inside the placing groove, a feeding structure is slidably connected inside the fixed sleeve, the top of the feeding structure extends to the outside of the gas chromatograph body, circulation grooves are arranged on both sides of the fixed sleeve, and supporting plates are welded on both sides of the feeding structure; the utility model discloses an electric telescopic handle comes to carry out the automatic rising to the inlet pipe, makes inside the feeding syringe needle can the accuracy get into gas chromatograph, promotes the accuracy that the feeding syringe needle advances the appearance, reduces the syringe needle because of advancing the probability of kind damage, and through the feeding structure that can adjust, can fix the feeding syringe needle of different models, has promoted sampling mechanism's practicality.

Description

Automatic sample introduction mechanism of gas chromatograph

Technical Field

The utility model relates to a gas chromatograph detects technical field, specifically is a gas chromatograph's autoinjection mechanism.

Background

The gas chromatograph is an important instrument in the field of chromatographic analysis, is widely applied to the fields of life science, material science, environmental protection, medical science, food safety and the like, is a most common analytical chemical method in various fields as a representative of modern analytical instruments after development of more than half a century, and plays an extremely important role in many analytical laboratories.

When the gas chromatograph samples at every time, the depth of the needle head of the microsyringe entering the sample inlet of the gas chromatograph is consistent, so that each group of data measured successively has good reproducibility, the existing gas chromatograph is also operated manually when samples are introduced, and the sample injection needle head is easy to deviate during manual operation, so that the needle head cannot enter the gas chromatograph at one time, and the needle head is damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas chromatograph's autoinjection mechanism possesses autoinjection's advantage, has solved the unable autoinjection's of current gas chromatograph problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a gas chromatograph's autoinjection mechanism, includes the gas chromatograph body, the standing groove has been seted up at the top of gas chromatograph body, the inside fixed mounting of standing groove has fixed cover, the inside sliding connection of fixed cover has the feeding structure, the top of feeding structure extends to the outside of gas chromatograph body, the runner groove has all been seted up to the both sides of fixed cover, the backup pad has all been welded to the both sides of feeding structure, one side that the feeding structure was kept away from to the backup pad is passed the runner groove and is extended to the outside of fixed cover, the bottom of backup pad has been bolted and has been connected first electric telescopic handle, the bottom of first electric telescopic handle has been bolted and has been connected the bearing plate, one side of bearing plate and the surface welding of.

Preferably, the feeding structure includes the inlet pipe, the inside second electric telescopic handle that all has bolted all around of inlet pipe, the one end bolt that the inlet pipe was kept away from to second electric telescopic handle has the fastening block, one side fixed mounting that the second electric telescopic handle was kept away from to the fastening block has the soft piece.

Preferably, the surface of the feeding pipe is welded with the side surface of the supporting plate, and the surface of the feeding pipe is in sliding connection with the inside of the fixing sleeve.

Preferably, the fastening block is a quarter ring, the side surface of the fastening block is a smooth surface, and the fastening block is symmetrically arranged around the center of the feeding pipe.

Preferably, the soft block is a quarter ring, and the soft block is symmetrically placed around the center of the feeding pipe.

Preferably, the two sides of the top inside the placing groove are bolted with sliding rods, the surface of each sliding rod is connected with a sliding sleeve in a sliding mode, and one side, away from the sliding rods, of each sliding sleeve is welded with the side face of the corresponding supporting plate.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses an electric telescopic handle comes to carry out the automatic rising to the inlet pipe, makes inside the feeding syringe needle can the accuracy get into gas chromatograph, promotes the accuracy that the feeding syringe needle advances the appearance, reduces the syringe needle because of advancing the probability of kind damage, and through the feeding structure that can adjust, can fix the feeding syringe needle of different models, has promoted sampling mechanism's practicality.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic top view of the feeding structure of the present invention;

fig. 4 is a three-dimensional schematic diagram of the feeding structure of the present invention.

In the figure: 1. a gas chromatograph body; 2. a placement groove; 3. fixing a sleeve; 4. a feed structure; 41. a feed pipe; 42. a second electric telescopic rod; 43. a fastening block; 44. a soft block; 5. a circulation tank; 6. a support plate; 7. a first electric telescopic rod; 8. a bearing plate; 9. a slide bar; 10. and (4) a sliding sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, an automatic sample feeding mechanism of a gas chromatograph comprises a gas chromatograph body 1, a placement groove 2 is formed at the top of the gas chromatograph body 1, a fixed sleeve 3 is fixedly installed inside the placement groove 2, a feeding structure 4 is slidably connected inside the fixed sleeve 3, the top of the feeding structure 4 extends to the outside of the gas chromatograph body 1, circulation grooves 5 are formed at both sides of the fixed sleeve 3, support plates 6 are welded at both sides of the feeding structure 4, one side of each support plate 6, which is far away from the feeding structure 4, penetrates through the circulation groove 5 and extends to the outside of the fixed sleeve 3, a first electric telescopic rod 7 is bolted at the bottom of each support plate 6, a bearing plate 8 is bolted at the bottom of each first electric telescopic rod 7, one side of each bearing plate 8 is welded with the surface of the fixed sleeve 3, and the feeding pipe 41 is automatically lifted through the, make the feeding syringe needle can accurately get into inside the gas chromatograph, promote the accuracy that the feeding syringe needle advances a kind, reduce the syringe needle because of advancing the probability of kind damage, and through the feeding structure 4 that can adjust, can fix the feeding syringe needle of different models, promoted the practicality of sampling mechanism.

In this embodiment, feed structure 4 includes inlet pipe 41, the inside all bolted connection all around of inlet pipe 41 has second electric telescopic handle 42, the one end bolted connection that inlet pipe 41 was kept away from to second electric telescopic handle 42 has fastening block 43, one side fixed mounting that second electric telescopic handle 42 was kept away from to fastening block 43 has soft piece 44, through the cooperation of inlet pipe 41, second electric telescopic handle 42, fastening block 43 and soft piece 44 use, can fix the feeding syringe needle of different models.

In this embodiment, the surface of the feeding tube 41 is welded to the side of the supporting plate 6, and the surface of the feeding tube 41 is slidably connected to the inside of the fixing sleeve 3, so that the stability of the feeding tube 41 is enhanced.

In this embodiment, the fastening block 43 is the quarter ring, and the side of fastening block 43 is the smooth surface, and the fastening block 43 uses the centre of a circle of inlet pipe 41 to carry out the symmetry and places, through adopting the fastening block 43 that can constitute the ring, makes fastening block 43 be convenient for remove to constitute different fixed internal diameters.

In this embodiment, the soft block 44 is a quarter ring, the soft block 44 is symmetrically disposed around the center of the feeding pipe 41, and the soft block 44 capable of forming a ring is adopted, so that the soft block 44 can fix and protect feeding needles of different types.

In this embodiment, the inside both sides at top of standing groove 2 all bolted connection have slide bar 9, and the surperficial sliding connection of slide bar 9 has sliding sleeve 10, and slide bar 9 is kept away from to sliding sleeve 10 one side and the side welding of backup pad 6, uses through the cooperation of slide bar 9 and sliding sleeve 10, can support and spacing the removal of backup pad 6 to reinforcing inlet pipe 41's stability.

During the use, place the feeding syringe needle in the inside of soft piece 44, start second electric telescopic handle 42 afterwards, the removal of second electric telescopic handle 42 drives the fastening block 43 and removes, the removal of fastening block 43 drives soft piece 44 and removes, soft piece 44 is laminated fixedly to the feeding syringe needle afterwards, the feeding syringe needle is fixed afterwards, start first electric telescopic handle 7 this moment, the removal of first electric telescopic handle 7 drives backup pad 6 and descends and removes, the removal of backup pad 6 drives sliding sleeve 10 and slides on slide bar 9's surface, inlet pipe 41 begins to move afterwards, and drive the feeding syringe needle and remove, thereby make the inside of feeding syringe needle immigration gas chromatograph.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a gas chromatograph's autoinjection mechanism, includes gas chromatograph body (1), its characterized in that: a placing groove (2) is arranged at the top of the gas chromatograph body (1), a fixed sleeve (3) is fixedly arranged in the placing groove (2), the inner part of the fixed sleeve (3) is connected with a feeding structure (4) in a sliding way, the top of the feeding structure (4) extends to the outer part of the gas chromatograph body (1), both sides of the fixed sleeve (3) are provided with circulation grooves (5), both sides of the feeding structure (4) are welded with supporting plates (6), one side of the supporting plate (6) far away from the feeding structure (4) passes through the circulating groove (5) and extends to the outside of the fixed sleeve (3), the bottom of the supporting plate (6) is bolted with a first electric telescopic rod (7), the bottom of the first electric telescopic rod (7) is bolted with a bearing plate (8), one side of the bearing plate (8) is welded with the surface of the fixed sleeve (3).

2. The autosampler mechanism of a gas chromatograph of claim 1, wherein: feed structure (4) include inlet pipe (41), all bolted connection have second electric telescopic handle (42) around inlet pipe (41) is inside, the one end bolted connection that inlet pipe (41) were kept away from in second electric telescopic handle (42) has fastening block (43), one side fixed mounting that second electric telescopic handle (42) were kept away from in fastening block (43) has soft piece (44).

3. The autosampler mechanism of a gas chromatograph of claim 2, wherein: the surface of the feeding pipe (41) is welded with the side surface of the supporting plate (6), and the surface of the feeding pipe (41) is in sliding connection with the inside of the fixed sleeve (3).

4. The autosampler mechanism of a gas chromatograph of claim 2, wherein: the fastening block (43) is a quarter ring, the side surface of the fastening block (43) is a smooth surface, and the fastening block (43) is symmetrically arranged by using the circle center of the feeding pipe (41).

5. The autosampler mechanism of a gas chromatograph of claim 2, wherein: the soft block (44) is a quarter ring, and the soft block (44) is symmetrically arranged at the center of the feeding pipe (41).

6. The autosampler mechanism of a gas chromatograph of claim 2, wherein: the novel storage rack is characterized in that sliding rods (9) are bolted to two sides of the top inside the storage groove (2), sliding sleeves (10) are connected to the surfaces of the sliding rods (9) in a sliding mode, and one sides, far away from the sliding rods (9), of the sliding sleeves (10) are welded to the side faces of the supporting plates (6).