CN210742211U - Intelligent multi-position headspace sampling device - Google Patents

Abstract

The utility model discloses an intelligent multi-position headspace sampling device, which relates to a headspace sampling device, and aims to solve the technical problems that in the prior art, a sampling device needs a tester to continuously take out and put in a sample tube, and the use is inconvenient; therefore, a plurality of samples can be tested simultaneously, the convenience of the test is improved, and the number of times of testers can be reduced.

Description

Intelligent multi-position headspace sampling device

Technical Field

The utility model relates to a headspace sampling device, more specifically say, it relates to an intelligent many headspace sampling device.

Background

A headspace sampler is a convenient and fast sample pretreatment method in gas chromatography, and is characterized in that a sample to be detected is placed in a closed container, volatile components are volatilized from a sample matrix through heating, balance is achieved in a gas-liquid (or gas-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.

Chinese patent No. CN208805494U discloses a headspace sampler. The headspace sampler comprises a collection box; an observation window; a heating mechanism; a detection mechanism; the moving mechanism comprises a guide rail, a sliding block and a pushing seat; the pressing mechanism comprises a limiting pipe, a handle, a support rod, a spring and a pressing plate; the collecting mechanism comprises a fixed rod, an air storage pipe, a needle head, a fixed box, a piston, a toothed plate and a rotating motor, and the fixed rod is vertically and fixedly connected with the end part of the sliding block; the bottom of the fixed rod is fixedly connected with the gas storage pipe, and the piston is arranged on the inner wall of the gas storage pipe; the toothed plate is vertically arranged on the top surface of the piston, and the top end of the toothed plate is meshed with the gear; the gear is rotationally connected with the rotating motor. The utility model provides a headspace sample injector can carry out gas extraction transfer operation in a sealed environment to guarantee gaseous stability, avoid external gas to get into, improve the detection effect.

When using the headspace sample injector among the prior art, put into the thing groove with the sample cell and test, but in actual test process, need test a large amount of test samples, at this moment, need the experimenter after an experiment, put into a test sample again, need the experimenter to take out the sample cell that does not stop and put into, it is inconvenient to use, awaits improving.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an intelligent many headspace sampling devices, it has can put into a plurality of sample tubes simultaneously, improves the advantage of experimental convenience.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides an intelligent many headspace sampling device, includes the collection box, be equipped with the heating seat that is used for holding the sample cell in the collection box, the equipartition has a plurality of sample cell on the heating seat, be equipped with in the collection box and be used for driving heating seat pivoted power component, be equipped with on the collection box and insert the appearance needle of appearance in the sample cell, be equipped with in the collection box and be used for driving the drive assembly that the appearance needle removed, the top of appearance needle is equipped with the conveyer pipe of being connected with gas chromatograph.

Through adopting above-mentioned technical scheme, when experimental, the experimenter puts into the sample cell with a plurality of sample tubes, the heating seat heats the sample tube, drive assembly drive injection needle removes, injection needle inserts in the sample cell, with gaseous from the conveyer pipe input gas chromatograph, after injection needle has taken out a sample cell, drive assembly drive injection needle rebound, power assembly drives the heating seat rotation again, rotate next sample cell to the below of injection needle, drive assembly drive injection needle rebound inserts in the sample tube, with this can be experimental to a plurality of samples simultaneously, improve experimental convenience, also can reduce the experimental personnel's repeated work many times, alleviate experimenter's work burden, improve test efficiency.

Further, the heating rod is arranged in the heating seat and located in the center of the heating seat, a plurality of temperature sensors are evenly distributed on the side wall of the heating seat along the axial direction of the heating seat, the temperature sensors are located in the sample groove and are far away from one side of the heating rod, a controller used for controlling the heating temperature of the heating rod is arranged on the side wall of the collecting box, and the temperature sensors and the heating rod are electrically connected with the controller.

By adopting the technical scheme, when a tester puts the sample tubes into the sample tank, the temperature can be uniformly transferred to each sample tube because the heating rod is positioned at the central part of the central part, and the temperature can reach the temperature sensor only after passing through the sample tank because the temperature sensor is positioned at one side of the heating rod away from the sample tank, so that the temperature borne by the sample tank can be conveniently controlled;

the heating rod heats the sample tubes, the temperature sensor transmits sensed temperature information to the controller, when the temperature exceeds a set value, the temperature sensor transmits the information to the controller, the controller transmits a signal to the heating rod, and the heating rod stops heating, so that a plurality of sample tubes can be heated simultaneously.

Further, the power assembly comprises a power motor arranged on the bottom wall of the collection box, the power motor is arranged along the height direction of the collection box, and a motor shaft of the power motor is coaxially connected with the heating base;

the sample groove is arranged on one side of the heating seat far away from the power motor.

By adopting the technical scheme, after the sample tube is heated, the power motor is used for driving the heating seat to rotate, the sample tube is rotated to the lower part of the sample injection needle, the sample injection needle moves downwards and is inserted into the sample tube, after the sample injection needle moves out of the sample groove, the power motor drives the heating seat to rotate again, and thus the sample injection needle can be inserted into the sample tube again, so that a plurality of sample tubes can be tested, and the test convenience is improved.

Furthermore, a placing hole for placing a sample tube into the sample groove is formed in the top wall of the collection box, a sealing cover is hinged to the side wall of the collection box, and a hydraulic support rod is arranged between the collection box and the sealing cover.

Through adopting above-mentioned technical scheme, the tester utilizes when putting into the sample cell to put into the hole, thereby the sample cell can be put into the sample cell smoothly, when heating, rotates sealed lid, and sealed lid will put into the hole and seal to can reduce the heat of heating seat and scatter and disappear.

Furthermore, a bracket is arranged on the top wall of the collection box, and a sliding groove is formed in the bracket and along the height direction of the collection box;

the driving assembly comprises a driving motor arranged on the support, the driving motor is arranged along the height direction of the collection box, a driving shaft of the driving motor is provided with a connecting shaft, the side wall of the connecting shaft is provided with a driving wheel, a lead screw is arranged on the support and along the height direction of the collection box, the lead screw is provided with a driven wheel, and the driving wheel and the driven wheel are connected through a synchronous belt;

the side wall of the lead screw is provided with a supporting block, one side of the supporting block is provided with a sliding block which slides in the sliding groove, and the sample injection needle is arranged on one side of the supporting block, which is far away from the sliding block.

Through adopting above-mentioned technical scheme, after the sample cell heating finishes, motor power rotates the sample cell to the below of advancing the needle, and driving motor drives connecting axle, action wheel, follows driving wheel, hold-in range and lead screw in proper order and rotates, utilizes the slider to slide in the spout, thereby the lead screw drives the supporting shoe and reciprocates, and then can drive and advance the needle and reciprocate, thereby advance the needle and can be smoothly to inserting in the different sample cells.

Furthermore, two travel switches are respectively arranged on the bracket and on one side of the screw rod, and a convex block used for being in contact with the travel switches is arranged on the side wall of the supporting block.

Through adopting above-mentioned technical scheme, rotate as driving motor drive lead screw, the lead screw drives the supporting shoe and reciprocates, after travel switch was touch to the lug, open circuit, driving motor in time stop motion reduces the possibility that the syringe touched the sample cell diapire to can reduce the possibility of destroying the syringe, also can reduce the possibility of striking the supporting shoe.

Further, on the roof of collection box and be located the top of heating seat is equipped with the through-hole, be equipped with the guiding tube on the pore wall of through-hole, be equipped with the guiding hole that supplies the syringe to pass on the lateral wall of guiding tube, the diameter of guiding hole is by being close to one side of syringe is to keeping away from one side of syringe is steadilyd decrease.

By adopting the technical scheme, the diameter difference of the guide hole is utilized, and the sample injection needle passes through the guide hole and then is inserted into the sample tube, so that the convenience and the stability of the insertion of the sample injection needle can be improved.

Further, the supporting shoe is kept away from one side of slider is equipped with the backup pad, be equipped with the confession on the lateral wall of backup pad the supported hole that advances the needle and insert, just keep away from on the lateral wall of backup pad one side of collection box roof is equipped with two risers, two the riser sets up relatively, all be equipped with the spring on the riser relative lateral wall, the spring is kept away from the one end of riser is equipped with the parcel ring, be equipped with the groove of sliding on the lateral wall of backup pad, be equipped with the sliding block that slides in the groove of sliding on the diapire of parcel ring.

By adopting the technical scheme, when the sampling needle support block is installed, the sliding block slides in the sliding groove, the wrapping ring moves towards one side of the vertical plate, the spring is extruded and stressed, the sampling needle is inserted between the two wrapping rings, the sampling needle is inserted into the support hole, the wrapping rings are loosened, the spring resets, and the wrapping rings wrap the sampling needle, so that the sampling needle can be conveniently and quickly installed on the support block.

To sum up, the utility model discloses following beneficial effect has:

1. firstly, a plurality of sample tubes are sequentially placed in a sample groove, a heating seat heats the sample tubes simultaneously, a driving assembly drives a sample injection needle to move up and down, the sample injection needle is inserted into the sample groove, gas enters a gas chromatograph along the sample injection needle and a conveying pipe, the sample injection needle is moved out again, a power assembly drives the heating seat to rotate again, and the sample injection needle moves downwards and is inserted into the next sample tube, so that a plurality of samples can be tested, the test convenience is improved, the repeated labor of a tester can be reduced, the work burden of the tester is reduced, and the test efficiency is improved;

2. the sealing cover is used for sealing the placing hole, so that the heat loss of the heating seat can be reduced;

3. the two wrapping rings are used for wrapping the sample injection needle, so that the convenience of installing the sample injection needle is improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment.

FIG. 2 is a schematic structural diagram of a power assembly embodying an embodiment.

FIG. 3 is a sectional view of a heating base in an embodiment.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Fig. 5 is a schematic structural diagram of a driving assembly in an embodiment.

FIG. 6 is a cross-sectional view of a sample injection needle, a support plate, a sliding groove and a sliding block in an embodiment.

In the figure: 1. a collection box; 10. a drop hole; 11. a sealing cover; 12. a hydraulic support rod; 13. a support; 14. a chute; 15. a through hole; 16. a guide tube; 17. a guide hole; 18. a rubber pad; 2. a heating base; 20. a sample tank; 21. a heating rod; 22. a temperature sensor; 23. a controller; 3. a power assembly; 30. a power motor; 4. a sample injection needle; 40. a housing; 41. a conical shell; 42. an air inlet needle; 5. a drive assembly; 50. a drive motor; 51. a driving wheel; 52. a lead screw; 53. a driven wheel; 54. a support block; 55. a slider; 56. a travel switch; 57. a bump; 58. a support plate; 59. a support hole; 500. a vertical plate; 501. a spring; 502. wrapping the ring; 503. a sliding groove; 504. a sliding block; 505. a synchronous belt; 506. a connecting shaft; 6. a delivery pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1, an intelligent many headspace sampling devices, it includes collection box 1, be equipped with heating seat 2 in the collection box 1 respectively, be equipped with on the roof of collection box 1 and be arranged in inserting sample groove 20 and be arranged in driving assembly 5 that drive sample needle 4 reciprocated, heating seat 2 is cylindricly, the equipartition has a plurality of sample groove 20 on the heating seat 2, sample needle 4 is arranged in inserting sample groove 20, the top of sample needle 4 is equipped with the conveyer pipe 6 of being connected with gas chromatograph.

Referring to fig. 2, a power assembly 3 for driving a heating base 2 to rotate is arranged in the collection box 1, when a test is performed, a tester sequentially puts a plurality of sample tubes into a sample slot 20 (refer to fig. 1), the heating base 2 heats the sample tubes, when liquid in the sample tubes becomes gas, a driving assembly 5 drives a sample injection needle 4 to move downwards, the sample injection needle 4 is inserted into the sample tube in the sample slot 20, and the gas enters a gas chromatograph along a conveying pipe 6 for an analysis test.

Referring to fig. 2, the driving assembly 5 drives the sampling needle 4 to move, the sampling needle 4 moves out of the sample slot 20 (refer to fig. 1), the power assembly 3 drives the heating base 2 to rotate, the driving assembly 5 drives the sampling needle 4 to move downwards, and the sampling needle 4 is inserted into the next sample slot 20, so that a plurality of sample tubes can be tested at the same time, and the convenience of the test is improved; because single sample cell test time is short, so can need the repeated sample cell of ceaselessly of experimenter to put into and take out many times, occupy experimenter plenty of time and energy, a plurality of samples are tested simultaneously, can reduce experimenter's work burden, improve work efficiency.

Referring to fig. 1, a top wall of a collection box 1 is provided with a placing hole 10 for placing a sample tube into a sample groove 20, the placing hole 10 is a rectangular hole, the hole area of the placing hole 10 is smaller than the area of a heating seat 2, a sealing cover 11 for sealing the placing hole 10 is hinged on a side wall of the collection box 1, and a hydraulic support rod 12 is arranged between the collection box 1 and the sealing cover 11; when testing, the experimenter utilizes putting hole 10 to put into sample cell 20 with the sample cell, and heating seat 2 rotates sealed lid 11 when heating, pushes down hydraulic support rod 12 to can reduce the heat and outwards conduct from putting hole 10, reduce the factor that influences the experiment and go on.

Referring to fig. 2, the power assembly 3 comprises a power motor 30 arranged along the height direction of the collection box 1, the power motor 30 is arranged on the inner bottom wall of the collection box 1, a driving shaft of the power motor 30 is coaxially connected with the heating base 2, and the sample tank 20 (refer to fig. 1) is arranged on one side of the heating base 2 far away from the power motor 30; during the test, the tester puts the sample cell into sample groove 20, because the area of putting into hole 10 is less than the area of heating seat 2, so utilize power motor 30 drive heating seat 2 to rotate, will not put into one side of sample cell and expose from putting into hole 10, make things convenient for the tester to continue to put into sample groove 20 with the sample cell.

Referring to fig. 2, during the test, the heating base 2 is driven to rotate by the power motor 30, so that the sample tube can smoothly and sequentially move to the lower part of the sample injection needle 4 to convey gas, a plurality of samples can be tested, and the test convenience is improved.

Referring to fig. 3, a heating rod 21 is arranged in the heating seat 2 and at the center thereof, the axis of the heating rod 21 is collinear with the axis of the heating seat 2, a plurality of temperature sensors 22, preferably three temperature sensors 22, are uniformly distributed on the side wall of the heating seat 2 along the axial direction thereof, preferably a platinum resistance temperature sensor is adopted, the temperature sensors 22 are arranged at one side of the sample tank 20 away from the heating rod 21, a controller 23 for controlling the heating temperature of the heating rod 21 is arranged on the side wall of the collection box 1, and both the temperature sensors 22 and the heating rod 21 are electrically connected with the controller 23; after the test tube is placed in the sample groove 20, the sealing cover 11 is closed, the heating rod 21 heats the heating seat 2, and the heating rod 21 is positioned at the center of the heating seat 2, so that heat is uniformly transferred to each sample tube, and each sample tube can be uniformly heated.

Referring to fig. 3, because temperature sensor 22 sets up in one side that heating rod 21 was kept away from to sample cell 20, temperature transfer can reach temperature sensor 22 after sample cell 20 to this makes things convenient for the temperature that control sample cell 20 receives, temperature sensor 22 transmits the temperature signal who senses for controller 23, after the temperature reached the setting value, controller 23 will stop the signal transmission of heating and give heating rod 21, heating rod 21 stops heating, so as to this can control the temperature to a plurality of sample tubes, thereby can be smoothly experimental to a plurality of sample tubes.

Referring to fig. 4, a through hole 15 is arranged on the top wall of the collection box 1 and above the heating base 2, the through hole 15 is arranged on one side of the placing hole 10 (referring to fig. 3), a guide tube 16 is arranged on the hole wall of the through hole 15, a rubber pad 18 is arranged between the through hole 15 and the guide tube 16, and the rubber pad 18 is bent and extended to the top wall of the collection box 1, so that the possibility of air leakage can be reduced, a guide hole 17 for the sample injection needle 4 to pass through is arranged on the side wall of the guide tube 16, the diameter of the guide hole 17 is gradually decreased from one side close to the sample injection needle 4 to one side far away from the sample injection needle 4.

Referring to FIG. 5, a bracket 13 is provided on the top wall of the collection box 1, the bracket 13 is located on one side of the access hole 10, and a chute 14 is provided on the bracket 13 and along the height direction of the collection box 1.

Referring to fig. 5, the driving assembly 5 comprises a driving motor 50, a connecting shaft 506 disposed on a sidewall of the driving shaft 50, and a driving wheel 51 disposed on a sidewall of the connecting shaft 506, wherein the driving motor 50 is preferably a stepping motor, and the driving motor 50 is disposed on the bracket 13 and along the height direction of the collecting box 1.

Referring to fig. 5, a screw 52 is provided on the bracket 13 along the height direction of the collection box 1, a driven pulley 53 is provided on the screw 52, and the driving pulley 51 and the driven pulley 53 are connected by a timing belt 505.

Referring to fig. 5, a support block 54 is disposed on a side wall of the screw 52, a slider 55 sliding in the chute 14 is disposed on one side of the support block 54, and the sample injection needle 4 is disposed on one side of the support block 54 away from the slider 55.

Referring to fig. 5, two travel switches 56 are respectively disposed on the bracket 13 and at one side of the lead screw 52, the two travel switches 56 are respectively disposed at the upper portion and the lower portion of the lead screw 52, and a protrusion 57 for contacting with the travel switches 56 is disposed on the side wall of the supporting block 54; after the sample tube is heated by the heating base 2, the driving motor 50 sequentially drives the connecting shaft 506, the driving wheel 51, the driven wheel 53, the synchronous belt 505 and the screw rod 52 to rotate, the supporting block 54 can drive the sample injection needle 4 to move up and down due to the sliding of the sliding block 55 in the sliding groove 14, and when the protruding block 57 is in contact with the travel switch 56, the circuit is disconnected, so that the driving motor 50 can stop moving in time, and the possibility that the sample injection needle 4 impacts the bottom wall of the large sample tube is reduced.

Referring to fig. 5, when the driving motor 50 drives the sampling needle 4 to move downward and insert into the guiding hole 17, and then insert into the sample tube in the sample slot 20, the driving motor 50 drives the sampling needle 4 to move upward, and the power motor 30 (refer to fig. 3) drives the heating base 2 to rotate, then the driving motor 50 drives the sampling needle 4 to move downward, and the sampling needle 4 inserts into the next sample tube, so that the multiple sample tubes can be tested smoothly, and the convenience of the test is improved.

Referring to fig. 6, the injection needle 4 includes a housing 40 connected to the delivery pipe 6, a conical shell 41 disposed on the bottom wall of the housing 40, and an air inlet needle 42 disposed on a side of the conical shell 41 away from the housing 40, and one end of the air inlet needle 42 away from the housing 40 is inserted into the guide hole 17.

Referring to fig. 6, a support plate 58 is disposed on a side of the support block 54 away from the slider 55, a support hole 59 for inserting the conical shell 41 is disposed on a side wall of the support plate 58, and sliding grooves 503 are respectively disposed on two sides of the support hole 59 on the side wall of the support plate 58, wherein the sliding grooves 503 are T-shaped.

Referring to fig. 6, two vertical plates 500 are arranged on the side wall of the supporting plate 58 and on the side far away from the top wall of the collection box 1, the two vertical plates 500 are arranged oppositely, springs 501 are arranged on the opposite side walls of the vertical plates 500, a wrapping ring 502 is arranged at one end of each spring 501 far away from the corresponding vertical plate 500, and a sliding block 504 sliding in the sliding groove 503 is arranged on the bottom wall of the wrapping ring 502; when the sample injection needle 4 is installed, the sliding block 504 slides in the sliding groove 503, so that the two wrapping rings 502 are opened, the spring 501 is extruded and stressed, the shell 40 is inserted between the two wrapping rings 502, the wrapping rings 502 are loosened, the spring 501 is reset, the wrapping rings 502 are pushed to clamp the shell 40, and therefore the sample injection needle 4 can be conveniently and quickly installed on the supporting plate 58.

The implementation principle of the above embodiment is as follows: during the experiment, power component 3 drive heating seat 2 rotates, the tester puts into sample cell 20 with a plurality of sample tubes in proper order, heating seat 2 heats the sample tube, drive component 5 drive injection needle 4 reciprocates, injection needle 4 inserts in sample cell 20, gaseous entering injection needle 4, again along conveyer pipe 6 entering gas chromatograph in, injection needle 4 shifts out after upwards moving, power component 3 drive heating seat 2 rotates, injection needle 4 moves down and inserts in the next sample tube, with this can test a plurality of samples, improve experimental convenience.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (8)

1. The utility model provides an intelligent many headspace sampling device which characterized in that: including collection box (1), be equipped with in collection box (1) and be used for holding heating seat (2) of sample cell, the equipartition has a plurality of sample cell (20) on heating seat (2), be equipped with in collection box (1) and be used for driving heating seat (2) pivoted power component (3), be equipped with on collection box (1) and insert injection needle (4) in sample cell (20), be equipped with in collection box (1) and be used for driving injection needle (4) the drive assembly (5) that remove, the top of injection needle (4) is equipped with conveyer pipe (6) of being connected with gas chromatograph.

2. The intelligent multiposition headspace sampling device according to claim 1, wherein: heating seat (2) are interior and be located its central point and put and be equipped with heating rod (21), just along its axial equipartition have a plurality of temperature sensor (22) on the lateral wall of heating seat (2), temperature sensor (22) are located sample groove (20) and keep away from one side setting of heating rod (21), be equipped with on the lateral wall of collection box (1) and be used for control heating rod (21) heating temperature's controller (23), temperature sensor (22) and heating rod (21) all with controller (23) electricity is connected.

3. The intelligent multiposition headspace sampling device according to claim 1, wherein: the power assembly (3) comprises a power motor (30) arranged on the bottom wall of the collection box (1), the power motor (30) is arranged along the height direction of the collection box (1), and a motor shaft of the power motor (30) is coaxially connected with the heating base (2);

the sample groove (20) is arranged on one side of the heating seat (2) far away from the power motor (30).

4. The intelligent multiposition headspace sampling device according to claim 1, wherein: the collecting box is characterized in that a placing hole (10) for placing a sample tube into a sample groove (20) is formed in the top wall of the collecting box (1), a sealing cover (11) is hinged to the side wall of the collecting box (1), and a hydraulic supporting rod (12) is arranged between the collecting box (1) and the sealing cover (11).

5. The intelligent multiposition headspace sampling device according to claim 1, wherein: a bracket (13) is arranged on the top wall of the collection box (1), and a sliding groove (14) is arranged on the bracket (13) and along the height direction of the collection box (1);

the driving assembly (5) comprises a driving motor (50) arranged on the support (13), the driving motor (50) is arranged along the height direction of the collection box (1), a connecting shaft (506) is arranged on a driving shaft of the driving motor (50), a driving wheel (51) is arranged on the side wall of the connecting shaft (506), a lead screw (52) is arranged on the support (13) and along the height direction of the collection box (1), a driven wheel (53) is arranged on the lead screw (52), and the driving wheel (51) and the driven wheel (53) are connected through a synchronous belt (505);

the side wall of the lead screw (52) is provided with a supporting block (54), one side of the supporting block (54) is provided with a sliding block (55) which slides in the sliding groove (14), and the sample injection needle (4) is arranged on one side, far away from the sliding block (55), of the supporting block (54).

6. The intelligent multiposition headspace sampling device according to claim 5, wherein: two travel switches (56) are respectively arranged on the bracket (13) and on one side of the screw rod (52), and a convex block (57) used for being in contact with the travel switches (56) is arranged on the side wall of the supporting block (54).

7. The intelligent multiposition headspace sampling device according to claim 6, wherein: the utility model discloses a heating device, including collection box (1), heating seat (2), be equipped with on the roof of collection box (1) and be located the top of heating seat (2) is equipped with through-hole (15), be equipped with guide tube (16) on the pore wall of through-hole (15), be equipped with guiding hole (17) that supply to advance kind needle (4) to pass on the lateral wall of guide tube (16), the diameter of guiding hole (17) is by being close to one side of advancing kind needle (4) is kept away from one side of advance kind needle (4) is steadilyd.

8. The intelligent multiposition headspace sampling device according to claim 7, wherein: keep away from supporting shoe (54) one side of slider (55) is equipped with backup pad (58), be equipped with the confession on the lateral wall of backup pad (58) syringe (4) male supported hole (59), just keep away from on the lateral wall of backup pad (58) one side of collection box (1) roof is equipped with two riser (500), two riser (500) set up relatively, all be equipped with spring (501) on riser (500) the relative lateral wall, spring (501) are kept away from the one end of riser (500) is equipped with parcel ring (502), be equipped with on the lateral wall of backup pad (58) and slide groove (503), be equipped with on the diapire of parcel ring (502) and slide sliding block (504) that slide in groove (503) that slides.

Images