CN208805494U - A headspace sampler - Google Patents
A headspace sampler Download PDFInfo
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- CN208805494U CN208805494U CN201820698838.6U CN201820698838U CN208805494U CN 208805494 U CN208805494 U CN 208805494U CN 201820698838 U CN201820698838 U CN 201820698838U CN 208805494 U CN208805494 U CN 208805494U
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Abstract
本实用新型提供一种顶空进样器。所述顶空进样器包括采集箱；观察窗；加热机构；检测机构；移动机构，所述移动机构包括导轨、滑块以及推座；按压机构，所述按压机构包括限位管、手柄、支杆、弹簧以及压板；采集机构，所述采集机构包括固定杆、储气管、针头、固定盒、活塞、齿板以及转动电机，且所述固定杆与所述滑块端部垂直固定连接；所述固定杆的底部固定连接所述储气管，且所述储气管的内壁设有所述活塞；所述活塞的顶面垂直设有所述齿板，且所述齿板的顶端啮合连接齿轮；所述齿轮转动连接所述转动电机。本实用新型提供的顶空进样器，能够在一个密封环境内进行气体抽取转移操作，从而保证气体的稳定性、避免外界气体进入，提高检测效果。
The utility model provides a headspace sampler. The headspace sampler includes a collection box; an observation window; a heating mechanism; a detection mechanism; a moving mechanism, the moving mechanism includes a guide rail, a slider and a push seat; a support rod, a spring and a pressure plate; a collection mechanism, the collection mechanism includes a fixed rod, a gas storage tube, a needle, a fixed box, a piston, a toothed plate and a rotating motor, and the fixed rod is vertically and fixedly connected to the end of the slider; The bottom of the fixing rod is fixedly connected to the gas storage pipe, and the inner wall of the gas storage pipe is provided with the piston; the top surface of the piston is vertically provided with the toothed plate, and the top of the toothed plate is engaged with the connection gear ; The gear is rotatably connected to the rotating motor. The headspace sampler provided by the utility model can perform gas extraction and transfer operation in a sealed environment, thereby ensuring the stability of the gas, avoiding the entry of external gas, and improving the detection effect.
Description
Technical field
The utility model relates to detection device technical field more particularly to a kind of head-space samplers.
Background technique
Head-space sampler is a kind of conveniently sample-pretreating method in gas chromatography, and principle is will be to test sample
Product are placed in a closed container, evaporate volatile component from sample matrices by heat temperature raising, in gas-liquid two-phase
In reach balance, directly extraction top gas carry out chromatography, thus in sample survey volatile component ingredient and content.
Current gas extraction transfer process mainly carries out in air, so that outside air is easy to be mixed into detection gas
In vivo, detection effect is influenced；And heat loss block, gas the case where there are partial liquefactions.
Therefore, it is necessary to provide a kind of new head-space sampler solution above-mentioned technical problem.
Utility model content
The technical issues of the utility model solves is to provide a kind of detection accuracy height, the small head-space sampler of energy consumption.
In order to solve the above technical problems, head-space sampler provided by the utility model, comprising: vasculum；Observation window, it is described
Observation window is connected by a hinge the vasculum；Heating mechanism, the heating mechanism are set to the inner bottom surface of the vasculum；Inspection
Mechanism is surveyed, the testing agency is set to the side of the heating mechanism；Mobile mechanism, the mobile mechanism include guide rail, sliding block
And seat is pushed away, and the surface for pushing away seat and the vasculum is slidably connected；The bottom end for pushing away seat is fixedly connected with the sliding block,
And the sliding block is slidably connected the guide rail；The guide rail is set to the inside of the vasculum in parallel；Pressing mechanism, the pressing
Mechanism includes position-limiting tube, handle, strut, spring and pressing plate, and the strut is perpendicularly fixed at the both ends of the guide rail；It is described
Strut is through the inside of the vasculum, the position-limiting tube, and the inside of the position-limiting tube is equipped with the spring；The spring
Top be equipped with the pressing plate, and the pressing plate is fixed on the outer wall of the strut；The strut is vertical at the handle
Bottom surface both ends；Collecting mechanism, the collecting mechanism include fixed link, cylinder, syringe needle, fixed bin, piston, tooth plate and rotation
Motor, and the fixed link is vertical with the slider end is fixedly connected；The bottom of the fixed link is fixedly connected with the gas storage
Pipe, and the inner wall of the cylinder is equipped with the piston；The top surface of the piston is vertically equipped with the tooth plate, and the tooth plate
Engage connection gear in top；The gear is rotatablely connected the rotary electric machine, and the rotary electric machine is set to the fixed bin
It is internal；The fixed bin is set to the top sidewall of the cylinder；The bottom of the cylinder is communicated with the syringe needle, and described
The top of cylinder is hatch frame.
Preferably, the heating mechanism is set including electric hot plate, parcel shelf and article putting groove, and the electric hot plate is set on described
The inner bottom surface of vasculum；The top of the electric hot plate is equipped with the parcel shelf, and is provided at the center of the parcel shelf described
Article putting groove.
Preferably, the testing agency includes detection box, air inlet pipe, valve rod and vacuum pump, and the detection box is set to
The side of parcel shelf；The surface of the detection box is communicated with the air inlet pipe, and the sidewall thread connection of the air inlet pipe is
State valve rod；The detection box is connected to the vacuum pump by conduit.
Preferably, it is slidably connected between the parcel shelf and the electric hot plate, and the height of the parcel shelf and the inspection
The apical side height for surveying box is identical.
Preferably, the valve rod another side wall opposite with the observation window through the vasculum, and the vacuum
Pump is located at same side wall with the valve rod.
Preferably, the shift length for pushing away seat and the article putting groove central point to the spacing phase of the air inlet pipe central point
Together, and described one end for pushing away seat and the sliding block is arranged in a mutually vertical manner；One end of the sliding block is mutually perpendicular to set with the guide rail
It sets, and the other end of the sliding block connects the fixed link.
Preferably, the air inlet pipe be both ends open cuboid tubular structure, and the inner wall of the air inlet pipe with it is described
The outer wall of cylinder mutually fits closely.
Compared with the relevant technologies, head-space sampler provided by the utility model is had the following beneficial effects:
The utility model provides a kind of head-space sampler, is equipped with the mobile mechanism, institute in the inside of the vasculum
Collecting mechanism and the pressing mechanism are stated, can quickly extract the gas in sample bottle out and is transferred to the testing agency
It is interior, and entire transfer process is in the vasculum of relative closure and carries out, to reduce ambient atmos for detecting
The interference of journey improves detection accuracy；Closed environment, which operates, can avoid heat loss, to prevent gas liquid in transfer process
Change, required energy consumption when being heated when can also reduce subsequent detection.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of preferred embodiment of head-space sampler provided by the utility model；
Fig. 2 is mobile mechanism shown in FIG. 1, collecting mechanism and pressing mechanism attachment structure schematic diagram；
Fig. 3 is collecting mechanism structural schematic diagram shown in Fig. 2；
Fig. 4 is pressing mechanism structural schematic diagram shown in Fig. 2；
Fig. 5 is testing agency's structural schematic diagram shown in FIG. 1.
Figure label: 1, vasculum, 2, heating mechanism, 21, electric hot plate, 22, parcel shelf, 23, article putting groove, 3, moving machine
Structure, 31, guide rail, 32, sliding block, 33, push away seat, 4, collecting mechanism, 41, fixed link, 42, cylinder, 43, syringe needle, 44, fixed bin,
45, piston, 46, tooth plate, 47, gear, 48, rotary electric machine, 5, pressing mechanism, 51, position-limiting tube, 52, handle, 53, strut, 54,
Spring, 55, pressing plate, 6, testing agency, 61, detection box, 62, air inlet pipe, 63, valve rod, 64, vacuum pump, 7, observation window.
Specific embodiment
The utility model is described in further detail with embodiment with reference to the accompanying drawing.
Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, wherein Fig. 1 is head-space sampler provided by the utility model
A kind of preferred embodiment structural schematic diagram；Fig. 2 is mobile mechanism shown in FIG. 1, collecting mechanism and pressing mechanism connection
Structural schematic diagram；Fig. 3 is collecting mechanism structural schematic diagram shown in Fig. 2；Fig. 4 is pressing mechanism structural schematic diagram shown in Fig. 2；
Fig. 5 is testing agency's structural schematic diagram shown in FIG. 1.Head-space sampler includes: vasculum 1；Observation window 7, the observation window 7 are logical
It crosses hinge and connects the vasculum 1；Heating mechanism 2, the heating mechanism 2 are set to the inner bottom surface of the vasculum 1；Detection machine
Structure 6, the testing agency 6 are set to the side of the heating mechanism 2；Mobile mechanism 3, the mobile mechanism 3 include guide rail 31, slide
Block 32 and seat 33 is pushed away, and described pushes away seat 33 and the surface of the vasculum 1 is slidably connected；The bottom end for pushing away seat 33 is fixed to be connected
Connect the sliding block 32, and the sliding block 32 is slidably connected the guide rail 31；The guide rail 31 is in parallel set on the interior of the vasculum 1
Portion；Pressing mechanism 5, the pressing mechanism 5 include position-limiting tube 51, handle 52, strut 53, spring 54 and pressing plate 55, and described
Strut 53 is perpendicularly fixed at the both ends of the guide rail 31；The strut 53 is through the vasculum 1, the position-limiting tube 51
Inside, and the inside of the position-limiting tube 51 is equipped with the spring 54；The top of the spring 54 is equipped with the pressing plate 55, and described
Pressing plate 55 is fixed on the outer wall of the strut 53；The strut 53 is vertical at the bottom surface both ends of the handle 52；Collecting mechanism
4, the collecting mechanism 4 include fixed link 41, cylinder 42, syringe needle 43, fixed bin 44, piston 45, tooth plate 46, gear 47 and
Rotary electric machine 48, and the fixed link 41 is fixedly connected with 32 end vertical of sliding block；The bottom of the fixed link 41 is fixed
The cylinder 42 is connected, and the inner wall of the cylinder 42 is equipped with the piston 45；The top surface of the piston 45 is vertically equipped with
The tooth plate 46, and the top engagement of the tooth plate 46 connects the gear 47；The gear 47 is rotatablely connected the rotation electricity
Machine 48, and the rotary electric machine 48 is set to the inside of the fixed bin 44；The fixed bin 44 is set to the top of the cylinder 42
Portion's side wall；The bottom of the cylinder 42 is communicated with the syringe needle 43, and the top of the cylinder 42 is hatch frame.
In order to realize the heating for sample, the heating mechanism 2 is set including electric hot plate 21, parcel shelf 22 and article putting groove
23, and the electric hot plate 21 is set to the inner bottom surface of the vasculum 1；The top of the electric hot plate 21 is equipped with the parcel shelf
22, and the article putting groove 23 is provided at the center of the parcel shelf 22.
In order to realize the detection for sample, the leakproofness of detection process is improved, the testing agency 6 includes detection box
61, air inlet pipe 62, valve rod 63 and vacuum pump 64, and the detection box 61 is set to the side of parcel shelf 22；The detection box 61
Surface be communicated with the air inlet pipe 62, and the sidewall thread of the air inlet pipe 62 is connected with the valve rod 63；The detection box
61 are connected to the vacuum pump 64 by conduit.
For the ease of pumping and outlet, it is slidably connected between the parcel shelf 22 and the electric hot plate 21, and the glove
The height of plate 22 is identical as the detection apical side height of box 61.
In order to improve detection accuracy, reduce outside air interference, the valve rod 63 through the vasculum 1 with it is described
The opposite another side wall of observation window 7, and the vacuum pump 64 and the valve rod 63 are located at same side wall.
In order to enable transfer process is more convenient, the shift length for pushing away seat 33 and 23 central point of article putting groove to institute
The spacing for stating 62 central point of air inlet pipe is identical, and described pushes away seat 33 and one end of the sliding block 32 is arranged in a mutually vertical manner；The cunning
One end of block 32 is arranged in a mutually vertical manner with the guide rail 31, and the other end of the sliding block 32 connects the fixed link 41.
In order to enable outlet process is more tight, the entrance of other gases is not had, and the air inlet pipe 62 is both ends open
Cuboid tubular structure, and the inner wall of the air inlet pipe 62 and the outer wall of the cylinder 42 mutually fit closely.
The use principle of head-space sampler provided by the utility model are as follows: open the observation window 7, the sample that needs are detected
Product bottle is placed in the inside of the article putting groove 23, is then shut off the observation window 7, starts the electric hot plate 21, carries out to sample bottle
Heating, evaporates the volatile component in sample from sample matrices by heat temperature raising, when the gas-liquid two in sample bottle
When reaching balance in phase；The handle 52 can be pressed and then the strut 53 is driven to move downward, the pressing plate 55 compresses described
Spring 54, then the guide rail 31 is whole moves downward, and the syringe needle 43 passes through the rubber sheath at the top of sample bottle and is inserted into
In sample bottle, when the tip contact of the handle 52 and the position-limiting tube 51, it can stop pressing, then starting is described turns
Dynamic motor 48, drives the gear 47 to rotate and then the tooth plate 46 is driven to move upwards, the piston 45 is in the tooth plate 46
Traction under move upwards, so that the gas in sample bottle is drawn in the cylinder 42；After gas extraction, pine
The handle 52 is opened, then under the promotion of the spring 54, the handle 52 resets, and the guide rail 31 moves downward, is described
Syringe needle 43 leaves sample bottle；Seat 33 is pushed away to the end of the guide rail 31 described in then pushing, and the syringe needle 43 moves to institute at this time
The top of air inlet pipe 62 is stated, the valve rod 63 is then rotated and opens the air inlet pipe 62, press the handle 52, the needle again
First 43, the cylinder 42 enters the inside of the air inlet pipe 62, then starts the rotary electric machine 48, drives the tooth
47 reversion of wheel, the tooth plate 46 moves downward and squeezes out gas out of described cylinder 42, so that gas enters the inspection
It surveys in box 61 and is detected；After detection, the handle 52 is unclamped, pushes away the mobile collecting mechanism 4 of seat 33 by described
To the top of the article putting groove 23, the valve rod 63, the starting vacuum pump 64 are then tightened again, so that in the detection box 61
In vacuum state；Last operation personnel open the observation window 7, and sample bottle is taken out out of described article putting groove 23, is then pacified
New sample bottle is put down, the detection of next sample is carried out.
Compared with the relevant technologies, head-space sampler provided by the utility model is had the following beneficial effects:
The utility model provides a kind of head-space sampler, the inside of the vasculum 1 be equipped with the mobile mechanism 3,
Gas in sample bottle can be extracted out quickly and be transferred to the detection machine by the collecting mechanism 4 and the pressing mechanism 5
In structure 6, and entire transfer process is in the vasculum 1 of relative closure and carries out, to reduce ambient atmos for inspection
The interference of survey process improves detection accuracy；Closed environment, which operates, can avoid heat loss, to prevent gas in transfer process
Liquefaction, required energy consumption when being heated when can also reduce subsequent detection.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other relevant technical fields, are also included in the patent protection scope of the utility model.
Claims (7)
1. a kind of head-space sampler characterized by comprising
Vasculum；
Observation window, the observation window are connected by a hinge the vasculum；
Heating mechanism, the heating mechanism are set to the inner bottom surface of the vasculum；
Testing agency, the testing agency are set to the side of the heating mechanism；
Mobile mechanism, the mobile mechanism include guide rail, sliding block and push away seat, and the surface for pushing away seat and the vasculum is sliding
Dynamic connection；The bottom end for pushing away seat is fixedly connected with the sliding block, and the sliding block is slidably connected the guide rail；The guide rail is parallel
Set on the inside of the vasculum；
Pressing mechanism, the pressing mechanism includes position-limiting tube, handle, strut, spring and pressing plate, and the strut is vertically fixed
In the both ends of the guide rail；The strut is through the inside of the vasculum, the position-limiting tube, and the inside of the position-limiting tube
Equipped with the spring；The top of the spring is equipped with the pressing plate, and the pressing plate is fixed on the outer wall of the strut；The branch
Bar is vertical at the bottom surface both ends of the handle；
Collecting mechanism, the collecting mechanism include fixed link, cylinder, syringe needle, fixed bin, piston, tooth plate and rotary electric machine,
And the fixed link is vertical with the slider end is fixedly connected；The bottom of the fixed link is fixedly connected with the cylinder, and
The inner wall of the cylinder is equipped with the piston；The top surface of the piston is vertically equipped with the tooth plate, and the top of the tooth plate
Engage connection gear；The gear is rotatablely connected the rotary electric machine, and the rotary electric machine is set to the inside of the fixed bin；
The fixed bin is set to the top sidewall of the cylinder；The bottom of the cylinder is communicated with the syringe needle, and the gas storage
The top of pipe is hatch frame.
2. head-space sampler according to claim 1, which is characterized in that the heating mechanism is set including electric hot plate, glove
Plate and article putting groove, and the electric hot plate is set to the inner bottom surface of the vasculum；The top of the electric hot plate is equipped with described set
Object plate, and the article putting groove is provided at the center of the parcel shelf.
3. head-space sampler according to claim 2, which is characterized in that the testing agency include detection box, air inlet pipe,
Valve rod and vacuum pump, and the detection box is set to the side of parcel shelf；The surface of the detection box is communicated with the air inlet pipe,
And the sidewall thread of the air inlet pipe is connected with the valve rod；The detection box is connected to the vacuum pump by conduit.
4. head-space sampler according to claim 3, which is characterized in that slided between the parcel shelf and the electric hot plate
Connection, and the height of the parcel shelf is identical as the detection apical side height of box.
5. head-space sampler according to claim 3, which is characterized in that the valve rod through the vasculum with it is described
The opposite another side wall of observation window, and the vacuum pump and the valve rod are located at same side wall.
6. head-space sampler according to claim 3, which is characterized in that the shift length for pushing away seat and the article putting groove
The spacing of central point to the air inlet pipe central point is identical, and described one end for pushing away seat and the sliding block is arranged in a mutually vertical manner；Institute
The one end and the guide rail for stating sliding block are arranged in a mutually vertical manner, and the other end of the sliding block connects the fixed link.
7. head-space sampler according to claim 3, which is characterized in that the air inlet pipe is the cuboid pipe of both ends open
Shape structure, and the inner wall of the air inlet pipe and the outer wall of the cylinder mutually fit closely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820698838.6U CN208805494U (en) | 2019-03-10 | 2019-03-10 | A headspace sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820698838.6U CN208805494U (en) | 2019-03-10 | 2019-03-10 | A headspace sampler |
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| Publication Number | Publication Date |
|---|---|
| CN208805494U true CN208805494U (en) | 2019-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820698838.6U Active CN208805494U (en) | 2019-03-10 | 2019-03-10 | A headspace sampler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111208264A (en) * | 2020-01-16 | 2020-05-29 | 赣州汇祥环保科技有限公司 | Indoor air pollution detection device |
| CN111272606A (en) * | 2020-01-21 | 2020-06-12 | 山东大学 | A kind of manual static headspace sampling device for syringe and sampling method |
| CN114324697A (en) * | 2021-12-28 | 2022-04-12 | 国网黑龙江省电力有限公司电力科学研究院 | A device for sampling and detecting methanol in transformer oil |
-
2019
- 2019-03-10 CN CN201820698838.6U patent/CN208805494U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111208264A (en) * | 2020-01-16 | 2020-05-29 | 赣州汇祥环保科技有限公司 | Indoor air pollution detection device |
| CN111208264B (en) * | 2020-01-16 | 2022-10-28 | 夏本明 | Indoor air pollution detection device |
| CN111272606A (en) * | 2020-01-21 | 2020-06-12 | 山东大学 | A kind of manual static headspace sampling device for syringe and sampling method |
| CN111272606B (en) * | 2020-01-21 | 2020-12-08 | 山东大学 | A kind of manual static headspace sampling device for syringe and sampling method |
| CN114324697A (en) * | 2021-12-28 | 2022-04-12 | 国网黑龙江省电力有限公司电力科学研究院 | A device for sampling and detecting methanol in transformer oil |
| CN114324697B (en) * | 2021-12-28 | 2023-10-03 | 国网黑龙江省电力有限公司电力科学研究院 | A device for sampling and detecting methanol in transformer oil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A headspace sampler Granted publication date: 20190430 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: SHAANXI LVYUAN TESTING TECHNOLOGY Co.,Ltd. Registration number: Y2024980059660 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |