CN220542851U - Airtight headspace sampler - Google Patents

Abstract

The utility model relates to the technical field of headspace injectors, in particular to an airtight headspace injector. The technical proposal comprises: the device comprises a headspace sampler body, a fixing box and a first baffle, wherein the fixing box is fixedly arranged on one side of the headspace sampler body, a sundry storage cavity and a mounting box are respectively arranged in the fixing box, a blower is fixedly arranged in the mounting box, a fixing frame is fixedly connected to the top of the fixing box, the first baffle is fixedly arranged on one side of the fixing frame, a dust collection opening is fixedly arranged on the bottom of the first baffle, and a second baffle is rotatably connected to one side of the first baffle. According to the utility model, through the mutual matching among the impurity storage cavity, the drying plate and the dust collection port, the water and gas around the sample bottle to be detected can be absorbed through the drying plate, the water and gas can be prevented from remaining on the surface of the sample bottle to be detected, the dust and impurities on the surface of the sample bottle to be detected can be sucked into the impurity storage cavity through the dust collection port, and the influence of the external impurities on the detection accuracy of the sample can be avoided.

Description

Airtight headspace sampler

Technical Field

The utility model relates to the technical field of headspace injectors, in particular to an airtight headspace injector.

Background

The headspace sampler is a convenient and quick sample pretreatment method in gas chromatography, the principle is that a sample to be tested is placed in a closed container, volatile components volatilize from a sample matrix through heating and heating, balance is achieved in gas-liquid or gas-solid two phases, top gas is directly extracted for chromatographic analysis, thus components and content of the volatile components in the sample are inspected, the use technology can avoid lengthy and tedious sample pretreatment process, interference of organic solvent on analysis is avoided, pollution to a sample inlet is reduced, the headspace sampler disclosed in application number of CN216525621U is solved, in the prior art, most of the sampler carries out sample feeding through a sample feeding pipeline, when the pipeline is used for sample feeding, the residual accumulation of samples in the pipeline is easy to cause, and then the phenomena such as the blockage of a sample feeding pipe are caused, so that the sample cannot be fed, and the sample feeding efficiency is directly influenced, and then the technical defects that the sample feeding efficiency is directly influenced are further found through further searching, the headspace sample feeder disclosed by the application number of CN208937545U is provided through a specific technical structure, a plurality of sample grooves are practically formed in the headspace sample feeder, the sample grooves are used for placing sample bottles, and when the sample bottles do not work, the sample grooves are always in the same state with the outside, the sample grooves are long in time, ash fall easily, pollution is caused, and the technical defects such as measurement results are influenced, but the headspace sample feeder with a similar structure still has a plurality of defects when in actual use, such as: the sample bottle to be detected is usually placed on a storage tray of the headspace sampler and is directly exposed in the air, so that the bottle mouth is easy to be stained with external dust and the detection result is easy to be influenced, and the airtight headspace sampler needs to be designed.

Disclosure of Invention

The present utility model is directed to an airtight headspace sampler, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the airtight headspace sampler comprises a headspace sampler body, a fixing box and a first baffle, wherein the fixing box is fixedly arranged on one side of the headspace sampler body, a sundry storage cavity and a mounting box are respectively arranged in the fixing box, a blower is fixedly arranged in the mounting box, a fixing frame is fixedly connected to the top of the fixing box, the first baffle is fixedly arranged on one side of the fixing frame, a dust collection opening is fixedly arranged on the bottom of the first baffle, and a second baffle is rotatably connected to one side of the first baffle.

Through placing the sample bottle that will wait to detect on the thing dish of putting of headspace sampler, can make the second baffle to flush with first baffle through the upset pivot, can block the dust impurity at the sample bottle top that waits to detect through first baffle and second baffle, can avoid dust impurity adhesion at the sample bottle surface, can prevent external foreign matter entering sample bottle simultaneously, can absorb the peripheral moisture of sample bottle that waits to detect through the dry plate, can prevent that moisture from remaining on the sample bottle surface that waits to detect, can inhale the dust impurity on sample bottle surface that waits to detect to store up miscellaneous intracavity through the dust absorption mouth, can avoid the detection accuracy of external impurity influence sample, rotatory through the pivot can drive the second baffle and upwards overturn and open, can make the staff conveniently take the sample bottle of placing on the headspace sampler organism and change.

Preferably, the bottom sliding mounting of fixed case has the stopper, and the sliding tray that corresponds with the stopper has been seted up to the bottom of fixed case. Can carry out spacing effect to the apron through the stopper, can make the stopper carry out position adjustment through the sliding tray.

Preferably, the bottom of the fixed box is rotatably provided with a cover plate, and the bottom of the impurity storage cavity is provided with an impurity outlet corresponding to the cover plate. The cover plate can be used for opening and closing the impurity storage cavity, and dust and impurities in the impurity storage cavity can be discharged through the impurity outlet.

Preferably, an air outlet corresponding to the air blower is formed in one side of the impurity storage cavity, and a filter screen is fixedly connected to one side of the air outlet. The air in the impurity storage cavity can be pumped out by the air blower through the air outlet, and dust impurities can be prevented from being discharged along the air outlet through the filter screen.

Preferably, the top of the dust collection port is fixedly connected with a dust conveying pipe extending to the inside of the fixing frame, and the top of the impurity storage cavity is provided with an impurity inlet corresponding to the dust conveying pipe. Dust and impurities can be transmitted through the dust conveying pipe and can be conveyed into the impurity storage cavity along the impurity inlet.

Preferably, the second baffle is rotatably installed with the first baffle through a rotating shaft, and the bottom of the second baffle is slidably provided with a drying plate. Through the pivot rotation, can drive the second baffle and overturn from top to bottom, can be with waiting to detect the peripheral moisture absorption of sample bottle through the desiccator, can prevent that moisture from remaining on waiting to detect sample bottle surface.

Compared with the prior art, the utility model has the beneficial effects that:

1. through being provided with mutually supporting between first baffle, second baffle and the pivot, can blockking the dust impurity at waiting to detect sample bottle top through first baffle and second baffle, can avoid dust impurity adhesion at sample bottle surface, can prevent simultaneously that external foreign matter from getting into the sample bottle, through the pivot rotation, can drive the second baffle and upwards overturn and open, can make the staff conveniently take the change to the sample bottle of placing on the headspace sampler organism.

2. Through being provided with the mutual cooperation between storing up miscellaneous chamber, desiccator and the dust absorption mouth, can be with waiting to detect the peripheral moisture absorption of sample bottle through the desiccator, can prevent that moisture from remaining on waiting to detect the sample bottle surface, can inhale the dust impurity on waiting to detect the sample bottle surface to store up miscellaneous intracavity through the dust absorption mouth, can avoid outside impurity to influence the detection accuracy of sample.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is a schematic view of the structure of the stationary box of the present utility model;

FIG. 3 is a schematic view of a first form of the second baffle of the present utility model;

fig. 4 is a schematic structural diagram of a second form of a second baffle of the present utility model.

In the figure: 1. a headspace sampler body; 2. a fixed box; 201. a sliding groove; 202. a limiting block; 203. a cover plate; 3. a storage cavity; 301. a impurity outlet; 302. a impurity inlet; 303. an air outlet; 304. a filter screen; 4. a mounting box; 401. a blower; 5. a fixing frame; 6. a first baffle; 601. a dust collection port; 602. a dust conveying pipe; 7. a second baffle; 701. a drying plate; 702. a rotating shaft.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

Example 1

As shown in fig. 1, 2, 3 and 4, the airtight headspace sampler provided by the utility model comprises a headspace sampler body 1, a fixed box 2 and a first baffle 6, wherein the fixed box 2 is fixedly arranged on one side of the headspace sampler body 1, a sundry storage cavity 3 and a mounting box 4 are respectively arranged in the fixed box 2, a blower 401 is fixedly arranged in the mounting box 4, a fixed frame 5 is fixedly connected to the top of the fixed box 2, the first baffle 6 is fixedly arranged on one side of the fixed frame 5, a dust collection opening 601 is fixedly arranged at the bottom of the first baffle 6, and a second baffle 7 is rotatably connected to one side of the first baffle 6;

an air outlet 303 corresponding to the air blower 401 is formed in one side of the impurity storage cavity 3, a filter screen 304 is fixedly connected to one side of the air outlet 303, a dust conveying pipe 602 extending to the inside of the fixing frame 5 is fixedly connected to the top of the dust collection opening 601, an impurity inlet 302 corresponding to the dust conveying pipe 602 is formed in the top of the impurity storage cavity 3, a second baffle 7 and a first baffle 6 are rotatably mounted through a rotating shaft 702, and a drying plate 701 is slidably mounted at the bottom of the second baffle 7.

The working principle of the airtight headspace sampler based on embodiment 1 is: through placing the sample bottle to be detected on the object placing disc of the headspace sampler, the second baffle 7 can be enabled to be flush with the first baffle 6 through the overturning rotating shaft 702, dust impurities at the top of the sample bottle to be detected can be blocked through the first baffle 6 and the second baffle 7, the dust impurities can be prevented from adhering to the surface of the sample bottle, and meanwhile, external foreign matters can be prevented from entering the sample bottle;

can be with waiting to detect peripheral moisture absorption of sample bottle through dry plate 701, can prevent that moisture from remaining on waiting to detect sample bottle surface, through starting air-blower 401, can inhale the dust impurity on waiting to detect sample bottle surface through dust absorption mouth 601, can be with dust impurity transmission through dust conveying pipe 602, can follow into miscellaneous mouthful 302 and carry to storing up in miscellaneous chamber 3, can avoid external impurity to influence the detection accuracy of sample, can make the inside gas of storing up miscellaneous chamber 3 be taken out by air-blower 401 through gas outlet 303, can prevent dust impurity along gas outlet 303 discharge through filter screen 304, it is rotatory through pivot 702, can drive the upwards upset of second baffle 7 and open, can make the staff conveniently take the change to the sample bottle of placing on the headspace sampler organism 1.

Example two

As shown in fig. 1 and 2, compared with the first embodiment, the airtight headspace sampler according to the present utility model further includes: the bottom slidable mounting of fixed case 2 has stopper 202, and the sliding tray 201 that corresponds with stopper 202 has been seted up to the bottom of fixed case 2, and apron 203 is installed in the bottom rotation of fixed case 2, and the miscellaneous mouth 301 that corresponds with apron 203 has been seted up to the bottom of storing up miscellaneous chamber 3.

In this embodiment, as shown in fig. 1, the cover 203 can be limited by the limiting block 202, and the position of the limiting block 202 can be adjusted by the sliding groove 201; as shown in fig. 2, the cover plate 203 can open and close the impurity storage chamber 3, and the impurity outlet 301 can discharge dust and impurities in the impurity storage chamber 3.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

Claims (6)

1. Airtight headspace sampler, including headspace sampler organism (1), fixed box (2) and first baffle (6), its characterized in that: one side fixed mounting of headspace sampler organism (1) has fixed case (2), the inside of fixed case (2) has seted up miscellaneous chamber (3) of storage and install bin (4) respectively, the inside fixed mounting of install bin (4) has air-blower (401), the top fixedly connected with mount (5) of fixed case (2), one side fixed mounting of mount (5) has first baffle (6), the bottom fixed mounting of first baffle (6) has dust absorption mouth (601), one side rotation of first baffle (6) is connected with second baffle (7).

2. The airtight headspace sampler of claim 1 wherein: the bottom of the fixed box (2) is provided with a limiting block (202) in a sliding manner, and the bottom of the fixed box (2) is provided with a sliding groove (201) corresponding to the limiting block (202).

3. The airtight headspace sampler of claim 1 wherein: the bottom of the fixed box (2) is rotatably provided with a cover plate (203), and the bottom of the impurity storage cavity (3) is provided with an impurity outlet (301) corresponding to the cover plate (203).

4. The airtight headspace sampler of claim 1 wherein: an air outlet (303) corresponding to the air blower (401) is formed in one side of the impurity storage cavity (3), and a filter screen (304) is fixedly connected to one side of the air outlet (303).

5. The airtight headspace sampler of claim 1 wherein: the top of dust absorption mouth (601) fixedly connected with reaches the interior dust conveying pipe (602) of mount (5), and impurity inlet (302) that corresponds with dust conveying pipe (602) are seted up at the top of miscellaneous chamber (3).

6. The airtight headspace sampler of claim 1 wherein: the second baffle (7) and the first baffle (6) are rotatably arranged through a rotating shaft (702), and a drying plate (701) is slidably arranged at the bottom of the second baffle (7).