CN215985911U

CN215985911U - Heating mechanism of headspace sample injector

Info

Publication number: CN215985911U
Application number: CN202121384982.0U
Authority: CN
Inventors: 吴晓君
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-03-08
Anticipated expiration: 2031-06-21

Abstract

The utility model relates to the technical field of headspace sample injectors, in particular to a heating mechanism of a headspace sample injector, which comprises a sample bottle, a base, a jacking mechanism and a heating mechanism, wherein the top end of the base is connected with the heating mechanism, the top end of the base is fixedly connected with a box body, the box body is connected with a plurality of cylinder bodies, the jacking mechanism is provided with a plurality of jacking mechanisms, the plurality of jacking mechanisms are connected with the inner side wall of the box body and the base, the output end of each jacking mechanism penetrates through the box body and extends into each cylinder body, the sample bottle is in sliding fit with the inner side wall of each cylinder body, the inner side wall of each cylinder body is provided with a spiral groove, the cylinder bodies are communicated with an exhaust pipe and an air inlet pipe, the other end of the exhaust pipe penetrates through the box body and is connected with the heating mechanism, one end of each air inlet pipe, which is far away from each cylinder body, is connected with a suction fan, it is convenient for stir sample bottle evenly, makes the sample be heated evenly, is convenient for dismantle sample bottle simultaneously, improves use reliability and practicality.

Description

Heating mechanism of headspace sample injector

Technical Field

The utility model relates to the technical field of headspace sample injectors, in particular to a heating mechanism of a headspace sample injector.

Background

As is known, a headspace sampler is a convenient and rapid sample pretreatment method in gas chromatography, and the principle of the headspace sampler is that a sample to be detected is placed in a closed container, volatile components are volatilized from a sample matrix through heating, the volatile components reach balance in a gas phase (or a gas phase and a solid phase), and top gas is directly extracted for chromatographic analysis, so that the components and the content of the volatile components in the sample are detected. The headspace sampling technology can avoid a tedious and tedious sample pretreatment process, avoid interference of an organic solvent on analysis, and reduce pollution to a chromatographic column and a sampling port.

Through the retrieval, chinese patent application number is CN 202020584296.7's utility model discloses a heating mechanism on headspace injector, its roughly description does, including the organism, be equipped with cylindric heating cabinet in the organism, the middle part of heating cabinet is equipped with the saddle, and annular heating chamber between saddle and the heating cabinet, the top of heating cabinet are equipped with the rotary disk, are equipped with the headspace bottle locating hole that corresponds with annular heating chamber on the rotary disk, and the bottom of rotary disk is equipped with the headspace bottle bracket that corresponds with headspace bottle locating hole and stretch into annular heating intracavity.

However, when the prior art scheme is in use, the rotating disc is driven to rotate through the driving motor, and then the headspace bottle is driven to move and heat along the annular heating cavity, so that the sample inside the headspace bottle is easily shaken violently when the headspace bottle rotates in the mode, the inspection effect is influenced, and the practicability is low.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a heating mechanism of a headspace sample injector, which aims to solve the problem that the detection effect is influenced by violent shaking of a sample in a headspace bottle when a rotating disc provided by the background art rotates.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a heating mechanism of a headspace sample injector comprises a sample bottle, a base, a plurality of jacking mechanisms and a heating mechanism, wherein the top end of the base is connected with the heating mechanism, the top end of the base is fixedly connected with a box body, the box body is connected with a plurality of barrel bodies, the jacking mechanisms are provided with a plurality of jacking mechanisms, the plurality of jacking mechanisms are connected with the inner side wall of the box body and the base, the output ends of the jacking mechanisms penetrate through the box body and extend into the barrel bodies, the sample bottle is in sliding fit with the inner side wall of the barrel bodies, the inner side wall of the barrel bodies is provided with a spiral groove, the barrel bodies are communicated with an exhaust pipe and an air inlet pipe, the other ends of the exhaust pipes penetrate through the box body and are connected with the heating mechanism, one ends of the plurality of air inlet pipes, which are far away from the barrel bodies, are connected with the heating mechanism through the connecting pipes, the barrel bodies are fixedly sleeved with fixing rings, clamping holes are formed in the fixing rings, and connecting rods are arranged in the clamping holes, the bottom of connecting rod is connected with the dog, and the other end of a plurality of connecting rods is connected with sealed lid.

Preferably, the heating mechanism comprises a heating box, the heating box is fixedly connected with the base, a heat insulation plate, a heating pipe and a heat dissipation plate are sequentially connected to the inside of the heating box from bottom to top, and the heating box is communicated with the connecting pipe and the exhaust pipe.

Further, climbing mechanism includes the jacking piece, and in the jacking piece ran through the box and extended to the barrel, the mounting groove had been seted up to the bottom of jacking piece, and the mounting groove in-connection has the spring, the other end and the base fixed connection of spring.

Still further, fixed cover is equipped with the spacing ring on the jacking piece, has seted up a plurality of guiding holes on the spacing ring, and sliding connection has the guide bar in the guiding hole, the both ends of guide bar respectively with the inside wall fixed connection of base and box.

As a further scheme of the scheme, the top end of the sealing cover is connected with a fixed rod through a mounting block, and the top end of the fixed rod is connected with a handle.

As a further scheme of the scheme, the top end of the jacking block is connected with a cushion pad.

On the basis of the scheme, the base is provided with a plurality of mounting holes.

(III) advantageous effects

Compared with the prior art, the utility model provides a heating mechanism of a headspace sampler, which has the following beneficial effects:

1. this heating mechanism of headspace sample injector through setting up the helicla flute, makes mutually supporting of suction fan, blast pipe, intake pipe and connecting pipe, makes the heat in the suction fan control heating cabinet pass through the blast pipe and convey to the helicla flute in to increase thermal dwell time, then through the circulation conveying of suction fan to the heating cabinet in, with the improvement heating effect, improve the practicality.

2. This heating mechanism of headspace sample injector through the cooperation of jacking piece and spring, makes sealed lid press the jacking bottle through the sample bottle, then makes dog and solid fixed ring mutually support and be connected, and the elasticity through the spring is ejecting with the sample bottle simultaneously to take out the sample bottle, improve and use convenience and practicality.

Drawings

FIG. 1 is an exploded perspective view of the present invention;

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

FIG. 3 is an enlarged view of a portion of FIG. 1 at B according to the present invention;

fig. 4 is a schematic perspective view of the present invention.

In the figure: 1. a sample bottle; 2. a base; 3. a box body; 4. a barrel; 5. a helical groove; 6. an exhaust pipe; 7. an air inlet pipe; 8. a suction fan; 9. a connecting pipe; 10. a fixing ring; 11. a connecting rod; 12. a stopper; 13. a sealing cover; 14. a heating box; 15. a heat insulation plate; 16. heating a tube; 17. a heat dissipation plate; 18. jacking blocks; 19. a spring; 20. a limiting ring; 21. a guide bar; 22. fixing the rod; 23. a handle; 24. a cushion pad; 25. and (7) installing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-4, a heating mechanism of a headspace sampler comprises a sample bottle 1 and a base 2, the base 2 is provided with a plurality of mounting holes 25, the base 2 is mounted through the mounting holes 25, the heating mechanism is further provided with a plurality of jacking mechanisms and a heating mechanism, the top end of the base 2 is connected with the heating mechanism, the top end of the base 2 is fixedly connected with a box body 3, the box body 3 is connected with a plurality of cylinder bodies 4, the jacking mechanisms are provided with a plurality of jacking mechanisms, the jacking mechanisms are connected with the inner side wall of the box body 3 and the base 2, the output ends of the jacking mechanisms penetrate through the box body 3 and extend into the cylinder bodies 4, the sample bottle 1 is in sliding fit with the inner side wall of the cylinder bodies 4, the inner side wall of the cylinder bodies 4 is provided with a spiral groove 5, the cylinder bodies 4 are communicated with an exhaust pipe 6 and an intake pipe 7, the other end of the exhaust pipe 6 penetrates through the box body 3 and is connected with the heating mechanism, one ends of the plurality of the exhaust pipes 7, which are far away from the cylinder bodies 4, are connected with a suction fan 8, the output end of the suction fan 8 penetrates through the box body 3 through the connecting pipe 9 to be connected with the heating mechanism, the suction fan 8, the exhaust pipe 6, the air inlet pipe 7 and the connecting pipe 9 are mutually matched by arranging the spiral groove 5, the suction fan 8 controls the heat in the heating box 14 to be transmitted into the spiral groove 5 through the exhaust pipe 6 so as to increase the retention time of the heat, then circularly transmitted into a heating box 14 through a suction fan 8 to improve the heating effect and the practicability, a fixing ring 10 is fixedly sleeved on the cylinder body 4, a clamping hole is arranged on the fixing ring 10, a connecting rod 11 is arranged in the clamping hole, the bottom end of the connecting rod 11 is connected with a stop block 12, the other ends of a plurality of connecting rods 11 are connected with sealing covers 13, the sealing cover 13 is connected by the matching of the stop block 12 and the fixing ring 10, the top end of the sealing cover 13 is connected with a fixing rod 22 through a mounting block, and the top end of the fixing rod 22 is connected with a handle 23.

It should be further explained that the heating mechanism includes a heating box 14, the heating box 14 is fixedly connected with the base 2, the heating box 14 is internally connected with a heat insulation plate 15, a heating pipe 16 and a heat dissipation plate 17 in sequence from bottom to top, the heat insulation plate 15 isolates the heat of the heating pipe 16, meanwhile, the heat dissipation plate 17 spreads the heat of the heating pipe 16, the heating box 14 is communicated with the connecting pipe 9 and the exhaust pipe 6, the jacking mechanism includes a jacking block 18, the jacking block 18 penetrates through the box body 3 and extends into the barrel body 4, the top end of the jacking block 18 is connected with a buffer cushion 24, the buffer cushion 24 buffers the sample bottle 1 to reduce the collision of the sample bottle 1, the bottom end of the jacking block 18 is provided with a mounting groove, a spring 19 is connected in the mounting groove, the other end of the spring 19 is fixedly connected with the base 2, the jacking block 18 is driven to rise by the elasticity of the spring 19 to eject the sample bottle 1 so as to take out the sample bottle 1, fixed cover is equipped with spacing ring 20 on the jacking piece 18, has seted up a plurality of guiding holes on the spacing ring 20, and sliding connection has guide bar 21 in the guiding hole, leads jacking piece 18 through the cooperation of guide bar 21 with the guiding hole just, the both ends of guide bar 21 respectively with the inside wall fixed connection of base 2 and box 3.

In summary, the working principle and the working process of the heating mechanism of the headspace sampler are that, when in use, the heating mechanism of the headspace sampler is firstly placed at a place to be used, the sample bottle 1 is placed in the barrel 4, the sealing cover 13 presses the jacking bottle through the sample bottle 1, the stopper 12 penetrates through the clamping hole, then the sealing cover 13 is rotated, the stopper 12 is matched with the fixing ring 10 for connection, then the suction fan 8, the exhaust pipe 6, the air inlet pipe 7 and the connecting pipe 9 are matched with each other, so that the suction fan 8 controls heat in the heating box 14 to be transmitted into the spiral groove 5 through the exhaust pipe 6 to increase the retention time of the heat, and then the heat is circularly transmitted into the heating box 14 through the suction fan 8.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A heating mechanism of a headspace sampler, comprising a sample bottle (1) and a base (2), characterized in that: the sample bottle heating device is characterized by further comprising a jacking mechanism and a heating mechanism, the top end of the base (2) is connected with the heating mechanism, the top end of the base (2) is fixedly connected with the box body (3), the box body (3) is connected with a plurality of barrel bodies (4), the jacking mechanism is provided with a plurality of jacking mechanisms, the inner side wall of each of the jacking mechanisms is connected with the base (2), the output end of each of the jacking mechanisms penetrates through the box body (3) and extends into each of the barrel bodies (4), the sample bottles (1) are in sliding fit with the inner side wall of each of the barrel bodies (4), the inner side wall of each of the barrel bodies (4) is provided with a spiral groove (5), the barrel bodies (4) are communicated with exhaust pipes (6) and air inlet pipes (7), the other ends of the exhaust pipes (6) penetrate through the box body (3) and are connected with the heating mechanism, one ends, far away from the barrel bodies (4), of the air inlet pipes (7) are connected with suction fans (8), the output ends of the suction fans (8) penetrate through the box body (3) through connecting pipes (9) and are connected with the heating mechanism, the fixed cover is equipped with solid fixed ring (10) on barrel (4), has seted up the card hole on solid fixed ring (10), is provided with connecting rod (11) in the card hole, and the bottom of connecting rod (11) is connected with dog (12), and the other end of a plurality of connecting rods (11) is connected with sealed lid (13).

2. The heating mechanism for the headspace sampler of claim 1, wherein: heating mechanism includes heating cabinet (14), heating cabinet (14) and base (2) fixed connection, and the inside of heating cabinet (14) is connected with heat insulating board (15), heating pipe (16) and heating panel (17) from bottom to top in proper order, and heating cabinet (14) and connecting pipe (9) and blast pipe (6) intercommunication.

3. The heating mechanism for the headspace sampler of claim 2, wherein: climbing mechanism includes jacking piece (18), and in jacking piece (18) run through box (3) and extend to barrel (4), the mounting groove has been seted up to the bottom of jacking piece (18), and mounting groove in-connection has spring (19), the other end and base (2) fixed connection of spring (19).

4. The heating mechanism for the headspace sampler of claim 3, wherein: fixed cover is equipped with spacing ring (20) on jacking piece (18), has seted up a plurality of guiding holes on spacing ring (20), and sliding connection has guide bar (21) in the guiding hole, the both ends of guide bar (21) respectively with the inside wall fixed connection of base (2) and box (3).

5. The heating mechanism for the headspace sampler of claim 4, wherein: the top end of the sealing cover (13) is connected with a fixing rod (22) through a mounting block, and the top end of the fixing rod (22) is connected with a handle (23).

6. The heating mechanism for the headspace sampler of claim 5, wherein: the top end of the jacking block (18) is connected with a cushion pad (24).

7. The heating mechanism for the headspace sampler of claim 6, wherein: the base (2) is provided with a plurality of mounting holes (25).