CN213456794U - Gas chromatograph - Google Patents

Abstract

The utility model provides a gas chromatograph, include: chromatograph organism, the inside fixedly connected with filling tube of chromatograph organism, the top fixedly connected with fixed support plate that the top of chromatograph organism just is located the filling tube, fixed support plate's inside rotation is connected with two threaded rods, two the equal threaded connection in outside of threaded rod has interior rotation thread ring, the outside cover of interior rotation thread ring is equipped with the extension connecting rod, two the one end fixedly connected with connecting plate of extension connecting rod. The utility model provides a pair of gas chromatograph has and makes the syringe can stabilize in the position of injection for personnel can not lead to the injected volume too much or too little because of the hand unstability when the injection, places in advance through placing a plurality of test tubes that the carousel is inside to be placed and waits to detect reagent, and the people of being convenient for can be swift rapidly when detecting needs detection reagent, need not the frequent effect of taking the syringe and removing.

Description

Gas chromatograph

Technical Field

The utility model relates to a gas chromatograph field especially relates to a gas chromatograph.

Background

The gas chromatograph is an instrument for qualitatively and quantitatively analyzing a multi-component complex mixture by using a chromatographic separation technology and a detection technology. The gas chromatograph uses gas as a mobile phase (carrier gas). When the sample is "injected" into the injector by the microinjector, it is carried by the carrier gas into the packed or capillary column. Due to the difference of distribution or adsorption coefficient between the mobile phase (gas phase) and the fixed phase (liquid phase or solid phase) of each component in the sample in the chromatographic column, under the flushing of carrier gas, each component is repeatedly distributed between the two phases to separate each component in the column, and then each component is sequentially detected by a detector connected behind the column according to the physicochemical characteristics of the components. The signal given by the detector for each component appears as a single peak on the recorder, called the chromatographic peak. The area covered by the chromatographic peak depends on the content of the corresponding component, so the peak area is the basis of quantitative analysis. After a sample of the mixture is injected, the curve obtained is recorded by a recorder, called chromatogram.

The gas chromatograph generally comprises a gas path system, a sample introduction system, a separation system (chromatographic column system), a detection and temperature control system and a recording system, wherein the sample introduction system comprises a sample injector: different sample injectors are used according to the state of the sample. The sample introduction of the liquid sample generally adopts a micro-injector. The sample introduction of the gas sample is usually performed by a push-pull six-way valve or a rotary six-way valve configured in the chromatograph itself.

The gas chromatograph uses the microinjector to sample, and when using the microinjector to inject, the injection amount of the microinjector needs to be accurately controlled, but the general gas chromatograph mostly uses manual injection when injecting, the injection amount is too much or too little because the manual injection often can be unstable, and the fixed injector needs to be detached when extracting a sample after injecting every time, and the taking and storing of a test tube is very troublesome to suck materials.

Therefore, it is necessary to provide a gas chromatograph to solve the above technical problems.

Disclosure of Invention

The utility model provides a gas chromatograph, the problem of having solved.

In order to solve the above technical problem, the utility model provides a pair of gas chromatograph, include: the chromatograph comprises a chromatograph body, wherein an injection pipe is fixedly connected inside the chromatograph body, a fixed support plate is fixedly connected to the top of the chromatograph body and positioned above the injection pipe, two threaded rods are rotatably connected inside the fixed support plate, internal rotating threaded rings are respectively and externally connected to the two threaded rods in a threaded manner, an extending connecting rod is sleeved outside the internal rotating threaded rings, one end of each of the two extending connecting rods is fixedly connected with a connecting plate, side baffles are fixedly connected to the two sides of the connecting plate, a sliding rod is fixedly connected to one side of the side baffle opposite to the side baffle, a sliding groove is formed in the sliding rod, a sliding clamp is slidably connected to the inside of the sliding groove, two clamping blocks are fixedly connected to the inner wall of the sliding clamp, an injection needle clamping ring is fixedly connected to one side of the sliding clamp, and the, the tightness of the needle clamping ring can be adjusted through a screw and a nut so as to fixedly clamp the needle, and a certain gap is reserved between the sliding rod and the connecting plate.

Preferably, the fixed support plate is fixedly connected with a motor, one end of an output shaft of the motor is fixedly connected with a second gear, the two threaded rods are fixedly connected with first gears at the top ends, the second gear is meshed with the two first gears, the motor is used for driving the second gear to rotate, and the second gear is used for driving the two gears to rotate so as to enable the threaded rods to rotate.

Preferably, a rotating groove is formed in the extension connecting rod, four clamping rotating blocks are fixedly connected to the periphery of the inner rotating threaded ring, and the four clamping rotating blocks are used for clamping the inner rotating threaded ring in the rotating groove.

Preferably, one side fixedly connected with of chromatograph organism connects the fixed block, the top fixedly connected with center dead lever of connecting the fixed block, the carousel is placed to the outside fixedly connected with of center dead lever, place the inside of carousel and placed a plurality of test tubes, the center dead lever runs through and extends to the outside of placing the carousel.

Preferably, two elastic components of bottom fixedly connected with of chromatograph organism, two the inside of elastic component all is equipped with the telescopic link, the bottom fixedly connected with of telescopic link supports the chassis, the elastic component is used for carrying out the shock attenuation at the chromatograph during operation.

Preferably, the other side of the chromatograph body is fixedly connected with a pushing handle, and the pushing handle is used for pushing the chromatograph body to move.

Preferably, the inside of the needle clamping ring is provided with a needle for injecting a sample solvent to be detected.

Compared with the prior art, the utility model provides a pair of gas chromatograph has following beneficial effect:

the utility model provides a gas chromatograph, rotation through the motor makes second gear revolve, the rotation of second gear makes two first gear revolve, the rotation of two first gears drives the outer slide bar of threaded rod and reciprocates, reciprocating of slide bar makes the syringe can stabilize the position at the injection, make personnel can not lead to the injected volume too much or too little because of the hand unstability when the injection, place in advance through placing a plurality of test tubes that the carousel is inside to be placed and wait to detect reagent, people of being convenient for can be swift when detecting draw and need detect reagent rapidly, need not frequent removal of taking the syringe.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of a gas chromatograph according to the present invention;

fig. 2 is a top view of the injection moving device of the present invention;

fig. 3 is a schematic view of the internal structure of the mobile device of the present invention;

fig. 4 is a schematic structural view of the slide clamp of the present invention;

fig. 5 is a schematic diagram of the internal structure of the clamp ring according to the present invention.

Reference numbers in the figures: 1. an injection needle; 2. an auxiliary positioning tube; 3. a central fixing rod; 4. a test tube; 5. placing a turntable; 6. connecting a fixed block; 7. an elastic member; 8. a telescopic rod; 9. a support chassis; 10. a chromatograph body; 11. pushing the handle; 12. an injection pipe; 13. a side dam; 14. a needle clamping ring; 15. a slide clamp; 16. a sliding groove; 17. a slide bar; 18. an extension connecting rod; 19. rotating the threaded ring; 20. a connecting plate; 21. a rotating groove; 22. a clamping rotating block; 23. a bit block; 24. a first gear; 25. a second gear; 26. a motor; 27. a threaded rod; 28. and fixing the support plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5 in combination, wherein fig. 1 is a schematic structural diagram of a gas chromatograph according to a preferred embodiment of the present invention; fig. 2 is a top view of the injection moving device of the present invention; fig. 3 is a schematic view of the internal structure of the mobile device of the present invention; fig. 4 is a schematic structural view of the slide clamp of the present invention; fig. 5 is a schematic diagram of the internal structure of the clamp ring according to the present invention. A gas chromatograph comprising: the chromatograph body 10 is fixedly connected with an injection pipe 12 inside the chromatograph body 10, a fixed support plate 28 is fixedly connected with the top of the chromatograph body 10 and positioned above the injection pipe 12, two threaded rods 27 are rotatably connected inside the fixed support plate 28, inner rotating threaded rings 19 are respectively and externally screwed on the two threaded rods 27, an extending connecting rod 18 is sleeved outside the inner rotating threaded rings 19, one end of each of the two extending connecting rods 18 is fixedly connected with a connecting plate 20, side baffles 13 are fixedly connected to both sides of the connecting plate 20, a sliding rod 17 is fixedly connected to one side of each of the side baffles 13, a sliding groove 16 is formed inside each sliding rod 17, a sliding clamp 15 is slidably connected inside each sliding groove 16, two clamping blocks 23 are fixedly connected to the inner wall of each sliding clamp 15, and a clamping ring 14 is fixedly connected to one side of each sliding clamp 15, the sliding groove 16 is used for the transverse sliding of the sliding clamp 15, the needle clamping ring 14 is made of elastic material, the tightness can be adjusted through a screw and a nut to fixedly clamp the needle 1, and a certain gap is left between the sliding rod 17 and the connecting plate 20 to prevent the sliding of the sliding clamp 15.

The inside fixedly connected with motor 26 of fixed bolster 28, the output shaft one end fixedly connected with second gear 25 of motor 26, two the equal fixedly connected with first gear 24 in top of threaded rod 27, mesh between second gear 25 and two first gears 24, motor 26 is used for driving second gear 25 and rotates, second gear 25 is used for driving two gears 24 rotatory make threaded rod 27 rotate and be used for controlling reciprocating of slide bar 17.

The extension connecting rod 18 is provided with a rotating groove 21 inside, four clamping rotating blocks 22 are fixedly connected to the periphery of the internal rotating threaded ring 19, and the four clamping rotating blocks 22 are used for clamping the internal rotating threaded ring 19 in the rotating groove 21 and not fall off when rotating.

One side fixedly connected with of chromatograph organism 10 connects fixed block 6, the top fixedly connected with center dead lever 3 of connecting fixed block 6, carousel 5 is placed to the outside fixedly connected with of center dead lever 3, a plurality of test tubes 4 have been placed to the inside of placing carousel 5, center dead lever 3 runs through and extends to the outside of placing carousel 5, place carousel 5 and be used for placing the reagent pipe that waits to detect.

Two elastic component 7 of bottom fixedly connected with of chromatograph organism 10, two the inside of elastic component 7 all is equipped with telescopic link 8, the bottom fixedly connected with of telescopic link 8 supports chassis 9, elastic component 7 is used for carrying out the shock attenuation at the chromatograph during operation, improves the stability of chromatograph.

A pushing handle 11 is fixedly connected to the other side of the chromatograph body 10, and the pushing handle 11 is used for pushing the chromatograph body 10 to move.

The needle clamping ring 14 is provided inside with a needle 1, said needle 1 being used for injecting a sample solvent to be tested.

The utility model provides a pair of gas chromatograph's theory of operation as follows:

during the use, rotation through motor 26 makes second gear 25 rotate, rotation of second gear 25 makes two first gears 24 rotate, two first gears 24's rotation drives the outer slide bar 17 of threaded rod 27 and reciprocates, through promoting slide clamp 15 and carry out the top of horizontal removal to the injection tube 12 on slide bar 17, slide bar 17 reciprocate and slide clamp 15's horizontal regulation makes the syringe can stabilize on the position of injection, place a plurality of test tubes 4 of 5 inside places of carousel and place in advance and wait to detect reagent, it needs the detect reagent to be convenient for people can be swift when detecting to draw.

Compared with the prior art, the utility model provides a pair of gas chromatograph has following beneficial effect:

make second gear 25 rotate through the rotation of motor 26, the rotation of second gear 25 makes two first gears 24 rotate, two first gears 24's rotation drives the outer slide bar 17 of threaded rod 27 and reciprocates, the reciprocating of slide bar 17 makes the syringe can stabilize the position at the injection, make personnel can not lead to the injection too much or too little because of the hand is unstable when the injection, place in advance through placing a plurality of test tubes 4 that 5 inside placed of carousel and wait to detect reagent, people can be swift when detecting draw needs detect reagent fast, need not frequent removal of taking the syringe.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims (7)

1. A gas chromatograph comprising: chromatograph organism (10), its characterized in that, the inside fixedly connected with injection tube (12) of chromatograph organism (10), the top of chromatograph organism (10) just is located the top fixedly connected with fixed support board (28) of injection tube (12), the inside rotation of fixed support board (28) is connected with two threaded rods (27), two the equal threaded connection in outside of threaded rod (27) has interior rotation screw ring (19), the outside cover of interior rotation screw ring (19) is equipped with extension connecting rod (18), two the one end fixedly connected with connecting plate (20) of extension connecting rod (18), the both sides fixedly connected with side shield (13) of connecting plate (20), one side fixedly connected with slide bar (17) that side shield (13) is relative, slide groove (16) have been seted up to slide bar (17) inside, the inside sliding connection of slide groove (16) has slide clamp (15), the inner wall of the sliding clamp (15) is fixedly connected with two clamping blocks (23), and one side of the sliding clamp (15) is fixedly connected with an injection needle clamping ring (14).

2. A gas chromatograph according to claim 1, characterized in that a motor (26) is fixedly connected to the inside of said fixed support plate (28), a second gear (25) is fixedly connected to one end of the output shaft of said motor (26), a first gear (24) is fixedly connected to the top end of each of said two threaded rods (27), and said second gear (25) meshes with said two first gears (24).

3. The gas chromatograph according to claim 1, wherein the extension connecting rod (18) has a rotating slot (21) formed therein, and four locking rotating blocks (22) are fixedly connected to the periphery of the inner rotating threaded ring (19).

4. The gas chromatograph according to claim 1, wherein a connection fixing block (6) is fixedly connected to one side of the chromatograph body (10), a center fixing rod (3) is fixedly connected to the top of the connection fixing block (6), a placing turntable (5) is fixedly connected to the outside of the center fixing rod (3), and a plurality of test tubes (4) are placed inside the placing turntable (5).

5. The gas chromatograph according to claim 4, wherein two elastic members (7) are fixedly connected to the bottom of the chromatograph body (10), a telescopic rod (8) is sleeved inside each of the two elastic members (7), and a support chassis (9) is fixedly connected to the bottom of the telescopic rod (8).

6. Gas chromatograph according to claim 5, characterized in that a push handle (11) is fixedly connected to the other side of said chromatograph body (10).

7. A gas chromatograph according to claim 1, characterized in that the needle (1) is arranged inside the needle clamping ring (14).

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