CN110243978B - Chromatograph - Google Patents

Abstract

The invention relates to the field of chromatographs, in particular to a chromatograph, which comprises a chromatograph box, a top plate, a sample placing mechanism, a dustproof mechanism, a supporting leg, a moving mechanism and a hand wheel, wherein the top plate is fixedly arranged at the top of the chromatograph box, and a sample placing structure for storing samples is movably arranged on one side of the chromatograph box. When the chromatograph is used and needs to be placed stably, the hand wheel is rotated to drive the gear to rotate, the rack plate is driven to move upwards in the gear rotating process, so that the moving wheel is driven to move upwards, the moving wheel is accommodated in the supporting leg, the supporting leg is contacted with the ground, the supporting leg is used for supporting, the purpose of stable placement in use is achieved, meanwhile, the fixing plate is driven to move downwards by the gear to enable the dust-proof plate to be away from the side face of the heat dissipation hole, heat dissipation treatment can be conducted through the heat dissipation hole, and the purposes of stable placement and synchronous heat dissipation can be achieved.

Description

Chromatograph

Technical Field

The invention relates to the field of chromatographs, in particular to a chromatograph.

Background

A chromatograph for chromatographic separation and analysis comprises a sample introduction system, a detection system, a recording and data processing system, a temperature control system, a mobile phase control system and the like, wherein the modern chromatograph has the characteristics of high stability, sensitivity, versatility, high automation degree and the like, and comprises a gas chromatograph, a liquid chromatograph, a gel chromatograph and the like, the chromatographs are widely used for chemical products and analysis of certain content of high molecular materials, the gel chromatograph can also measure the molecular weight and the distribution of the high molecular materials, the earliest application of the chromatograph is used for separating phytochrome, and the method comprises the following steps: putting calcium carbonate into a glass tube, pouring petroleum ether containing plant pigment (plant leaf extract) into the tube, wherein the upper end of the glass tube immediately shows a mixed band of several colors, washing with pure petroleum ether, continuously moving the band downwards along with the addition of petroleum ether, gradually separating into several bands of different colors, and continuously washing to respectively obtain pigments of various colors, and respectively identifying the pigments, thereby obtaining the name of a chromatography.

The gas chromatograph is a chromatographic analysis instrument using gas as a mobile phase, and the principle is mainly that the separation of a mixture is realized by utilizing the difference of the boiling point, the polarity and the adsorption property of a substance, a sample to be analyzed is gasified in a gasification chamber and then is brought into a chromatographic column by inert gas, the column contains a liquid or solid stationary phase, each component in the sample tends to form distribution or adsorption balance between the mobile phase and the stationary phase, along with the flowing of carrier gas, the components of the sample are repeatedly distributed or adsorbed and desorbed in the motion, the component with high distribution concentration in the carrier gas firstly flows out of the chromatographic column, and the component with high distribution concentration in the stationary phase flows out after being distributed, the traditional gas chromatograph is inconvenient to carry and needs to be held by a user for moving, however, the gas chromatograph consumes excessive manpower and material resources and is inconvenient to use, and if a moving mechanism such as a universal wheel is installed, the moving problem is solved, also there is the universal wheel to support to have and places the unstability, use under the outdoor environment very much, in case when meetting outdoor ground unevenness, then can appear placing the unstability, place the unstability and then lead to being unfavorable for the sample and pour into the work, make the sample take place the weeping problem when pouring into easily, and when pouring into the sample, the syringe is difficult for placing, when outdoor, most utilize the people hand to place, be unfavorable for sample analysis more, be difficult for the retrieval and utilization, lead to the result of use not good, and there is the heat dissipation in traditional gas chromatograph and remove dust problem that is difficult to the compatibility.

Disclosure of Invention

The invention provides a chromatograph aiming at the problems in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: a chromatograph comprises a chromatograph box, a top plate, a sample placing mechanism, a dustproof mechanism, supporting legs, a moving mechanism and a hand wheel, wherein the top plate is fixedly arranged at the top of the chromatograph box, the sample placing structure used for storing samples is movably arranged on one side of the chromatograph box, the dustproof structure used for preventing dust is arranged on the surface of the chromatograph box, the supporting legs used for supporting are fixedly arranged at the bottom of the chromatograph box, the moving mechanism used for moving and carrying is arranged inside the supporting legs, and the hand wheel used for controlling the moving mechanism is arranged at the bottom of the surface of the chromatograph box;

the moving mechanism comprises a gear, the gear is located inside the chromatograph box, a rack plate is arranged on one side of the gear in a meshed mode, moving wheels are fixedly arranged at the bottom of the rack plate through telescopic sleeve rods, a fixing plate is arranged on the other side of the gear in a meshed mode, a dust guard is fixedly arranged on one side, far away from the gear, of the fixing plate, and heat dissipation holes located in the surface of the chromatograph box are formed in one side of the dust guard.

Specifically, the surface of roof is from right side to left side and is provided with sample injector and hydrogen flame ion detector in proper order, and parallel arrangement between sample injector and the hydrogen flame ion detector.

Specifically, the sample placement mechanism includes the mount, the fixed fixture block that is provided with in bottom of mount, the fixed piece of placing that is provided with in top of mount, the standing groove has been seted up at the top of placing the piece, the draw-in groove has been seted up to the upper surface of chromatograph case, the inside joint of draw-in groove has the fixture block.

Specifically, dustproof mechanism includes the slide rail, slide rail fixed mounting is on the side of chromatograph case, the inside sliding connection of slide rail has the slider, one side fixedly connected with dust screen of slider, be vertical parallel arrangement between louvre and the dust screen, the louvre sets up the inboard under the dust screen promptly, the equal fixedly connected with gag lever post in top and the bottom of slide rail.

Specifically, the equal fixed mounting in both sides of chromatograph case inner chamber bottom has the guide rail, the inside sliding connection of guide rail has the movable block, one side fixedly connected with rack plate of movable block, one side that rack plate is close to the gear is provided with the tooth's socket, and the gear is connected with the tooth's socket meshing.

Specifically, one side of the fixing plate, which is close to the gear, is provided with a connecting tooth groove, the connecting tooth groove is meshed with the gear, a fixing groove is formed in the bottom of the fixing plate, a guide rod is movably connected inside the fixing groove, and a telescopic spring is sleeved on the surface of the guide rod.

Specifically, one side fixedly connected with dust guard of gear is kept away from to the fixed plate, the outside of dust guard is provided with the louvre, dust guard, louvre and dust screen set up from inside to outside.

The invention has the beneficial effects that:

(1) the chromatograph provided by the invention has the advantages that when the chromatograph is used and needs to be placed stably, the hand wheel is rotated to drive the gear to rotate, the rack plate is driven to move upwards in the gear rotating process so as to drive the moving wheel to move upwards when the chromatograph is used and needs to be placed stably, the moving wheel is accommodated in the supporting leg, the supporting leg is contacted with the ground and is supported by the supporting leg, the purpose of stable placement in use is achieved, meanwhile, the fixed plate is driven by the gear to move downwards, the dustproof plate is separated from the side face of the radiating hole, the radiating hole can be used for radiating, the purposes of stable placement and synchronous radiating can be achieved, the use effect is greatly improved, and the dust screen is pulled downwards simultaneously, and the front side of louvre is removed to the dust screen, plays dirt-proof purpose, avoids the dust to enter into the inside of chromatograph case for when reaching and placing stability and radiating, remove dust and handle.

(2) When the chromatograph is used for an outdoor chromatograph, the problem of liquid leakage during sample injection is easily caused due to the fact that the sample cannot be injected easily because the sample cannot be placed stably outdoors, and the problem that the syringe cannot be placed easily when the sample is injected is solved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural diagram of a chromatograph provided by the present invention;

FIG. 2 is a schematic cross-sectional view of a chromatograph according to the present invention;

fig. 3 is a schematic diagram of a sample placement mechanism of a chromatograph according to the present invention;

fig. 4 is a schematic diagram of a dustproof mechanism of a chromatograph according to the present invention;

fig. 5 is an enlarged schematic structural diagram of a portion a in fig. 2 of a chromatograph according to the present invention.

In the figure: 1. a chromatograph box; 101. a card slot; 102. heat dissipation holes; 2. a top plate; 21. a sample injector; 22. a hydrogen flame ion detector; 3. a sample placement mechanism; 31. a fixed mount; 32. a clamping block; 33. placing the blocks; 34. a placement groove; 4. a dust-proof mechanism; 41. a slide rail; 42. a slider; 43. a dust screen; 44. a limiting rod; 5. supporting legs; 6. a moving mechanism; 61. a gear; 62. a rack plate; 63. a telescopic loop bar; 64. a buffer spring; 65. a moving wheel; 66. a fixing plate; 661. connecting the tooth grooves; 662. fixing grooves; 663. a guide bar; 664. a tension spring; 67. a dust-proof plate; 68. a guide rail; 69. a moving block; 7. a handwheel.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-5, the chromatograph of the present invention includes achromatograph box 1, a top plate 2, asample placing mechanism 3, adustproof mechanism 4, a support leg 5, a moving mechanism 6, and a hand wheel 7, wherein the top plate 2 is fixedly disposed at the top of thechromatograph box 1, thesample placing mechanism 3 for storing samples is movably disposed at one side of thechromatograph box 1, thedustproof structure 4 for preventing dust is disposed on the surface of thechromatograph box 1, the support leg 5 for supporting is fixedly disposed at the bottom of thechromatograph box 1, the moving mechanism 6 for moving and carrying is disposed inside the support leg 5, and the hand wheel 7 for controlling the moving mechanism 6 is disposed at the bottom of the surface of thechromatograph box 1;

moving mechanism 6 includesgear 61, andgear 61 is located the inside ofchromatograph case 1, one side meshing ofgear 61 is provided with rack plate 62, rack plate 62's bottom is provided withremoval wheel 65 through flexible loop bar 63 is fixed,gear 61's opposite side meshing is provided withfixed plate 66,fixed plate 66 keeps away from thefixed dust guard 67 that is provided with in one side ofgear 61, one side ofdust guard 67 is provided with thelouvre 102 that is locatedchromatograph case 1 surface.

Specifically, the surface of roof 2 is followed the right side and is set graduallyinjector 21 and hydrogen flame ion detector 22 to a left side, and parallel arrangement betweeninjector 21 and the hydrogen flame ion detector 22, is provided with the furnace that is locatedchromatograph case 1 inside under theinjector 21, utilizes hydrogen flame ion detector 22 can effectively detect the sample.

Specifically, sampleplacement machine constructs 3 and includesmount 31, thefixed fixture block 32 that is provided with in bottom ofmount 31, the fixedplacing block 33 that is provided with in top ofmount 31, placinggroove 34 has been seted up at the top of placingblock 33, draw-ingroove 101 has been seted up tochromatograph case 1's upper surface, the inside joint of draw-ingroove 101 hasfixture block 32, places the inside ofblock 33 and offers the placinggroove 34 that is used for inserting the syringe, during the use, pegs graft thefixture block 32 ofmount 31 bottom and sets up the inside at draw-ingroove 101 to the realization carries out the portable installation tomount 31, inserts the syringe in placinggroove 34 simultaneously, only need take the sample syringe out during the use can, easy operation is convenient, and the placing groove is vertical direction setting moreover, can effectually prevent that the sample syringe from taking place to roll and fall, and take the convenience.

Specifically, the dust-proof mechanism 4 includes aslide rail 41, theslide rail 41 is fixedly installed on a side surface of thechromatograph box 1, aslide block 42 is slidably connected inside theslide rail 41, a dust-proof net 43 is fixedly connected to one side of theslide block 42, the heat dissipation holes 102 are vertically parallel to the dust-proof net 43, that is, the heat dissipation holes 102 are arranged on an inner side right below the dust-proof net 43, the top and the bottom of theslide rail 41 are both fixedly connected with alimit rod 44, the heat dissipation holes 102 can effectively dissipate heat inside thechromatograph box 1, when the chromatograph is not required to be used, the dust-proof net 43 can be pulled downwards, so that the dust-proof net 43 slides downwards under the cooperation of theslide block 42 and theslide rail 41, the dust-proof net 43 is blocked at a front side of the heat dissipation holes 102, so that the dust-proof treatment can be performed by using the dust-proof net 43, and the dust-proof net 43 is arranged outside thechromatograph box 1, facilitating periodic cleaning of thedust screen 43.

Specifically, equal fixed mounting in both sides ofchromatograph case 1 inner chamber bottom has aguide rail 68, the inside sliding connection ofguide rail 68 hasmovable block 69, one side fixedly connected with rack plate 62 ofmovable block 69, one side that rack plate 62 is close togear 61 is provided with the tooth's socket, andgear 61 is connected with the tooth's socket meshing, andgear 61 rotates the in-process and drives rack plate 62 and carry out the up-and-down motion to makemovable block 69 carry out the up-and-down motion under the effect ofguide rail 68,movable block 69 slides in the effect ofguide rail 68, can play the guide effect to rack plate 62, avoids rack plate 62 to lead to rack plate 62 andgear 61 to take place to shift or damage because of vibrations in the up-and-down motion process, thereby has improved the result of use.

Specifically, one side that fixedplate 66 is close togear 61 is provided with connects tooth'ssocket 661, and connects the meshing between tooth'ssocket 661 and thegear 61 and be connected, fixedslot 662 has been seted up to the bottom of fixedplate 66, the inside swing joint of fixedslot 662 hasguide arm 663, expandingspring 664 has been cup jointed on the surface ofguide arm 663, andgear 61 rotates the in-process and drives fixedplate 66 and carries out the up-and-down motion for expandingspring 664 onguide arm 663 surface can carry out concertina movement, can avoid fixedplate 66 to move down in-process andchromatograph case 1 bottom rigid contact, plays the effect of protection fixedplate 66, also can play the effect of buffering fixedplate 66 simultaneously, plays absorbing purpose.

Specifically, one side fixedly connected withdust guard 67 that gear 61 was kept away from to fixedplate 66, the outside ofdust guard 67 is provided withlouvre 102,dust guard 67,louvre 102 anddust screen 43 set up from inside to outside, when this chromatograph uses, it rotates to rotate hand wheel 7 and drivesgear 61 and rotate,gear 61 rotates the in-process and drives rack plate 62 upward movement, thereby drive and removewheel 65 upward movement, make and removewheel 65 and accomodate the inside of supporting leg 5, make supporting leg 5 and ground contact, reach and place stable purpose when using, also make fixedplate 66 carry out the downstream undergear 61 pivoted drive simultaneously, makedust guard 67 leave the side oflouvre 102, make and to utilizelouvre 102 to carry out the heat dissipation processing, can reach and place stably, can reach synchronous radiating purpose again, the result of use has been improved greatly.

When the chromatograph is used and needs to be placed stably, the hand wheel 7 is rotated to drive the gear 61 to rotate, the gear 61 drives the rack plate 62 to move upwards in the rotating process, so as to drive the moving wheel 65 to move upwards, so that the moving wheel 65 is accommodated in the supporting leg 5, the supporting leg 5 is contacted with the ground and is supported by the supporting leg 5, the purpose of placing stably in use is achieved, meanwhile, the fixing plate 66 is driven by the gear 61 to move downwards, so that the dust-proof plate 67 is separated from the side surface of the heat dissipation hole 102, heat dissipation treatment can be carried out by using the heat dissipation hole 102, the purposes of placing stably and synchronous heat dissipation can be achieved, the using effect is greatly improved, meanwhile, the dust-proof net 43 is pulled downwards, the dust-proof net 43 is moved to the front side of the heat dissipation hole 102, the purpose of dust prevention is achieved, and dust is prevented from entering the inside of the chromatograph box 1, when the device is used, the clamping block 32 at the bottom of the fixing frame 31 is inserted into the clamping groove 101, so that the fixing frame 31 can be installed conveniently, the injector is inserted into the placing groove 34, the sample injector only needs to be taken out when the device is used, the operation is simple and convenient, the placing groove is arranged in the vertical direction, the sample injector can be effectively prevented from rolling and falling, the taking is convenient, the problem that the sample injection work is not facilitated due to unstable outdoor placing and liquid leakage occurs is solved, when the device needs to be moved, the hand wheel 7 is rotated reversely, the gear 61 is rotated, the rack plate 62 is driven to move downwards in the rotating process of the gear 61, the moving wheel 65 is driven to move downwards, the moving wheel 65 is moved to the bottom of the supporting leg 5, and the moving wheel 65 is contacted with the ground, utilize to remove wheel 65 and remove, done the removal of being convenient for, also make fixed plate 66 carry out the upward movement under gear 61 pivoted drive simultaneously for dust guard 67 moves the side of louvre 102, makes and to utilize dust guard 67 to separate the shelves and live louvre 102 and carry out the dustproof processing of loosing, avoids the dust to enter into the inside of chromatograph case 1 through louvre 102, reaches to remove convenient and dustproof processing synchronous operation.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (4)

1. The utility model provides a chromatograph, includes chromatograph case (1), roof (2), sample placement machine structure (3), dustproof mechanism (4), supporting leg (5), moving mechanism (6) and hand wheel (7), its characterized in that: a top plate (2) is fixedly arranged at the top of the chromatograph box (1), a sample placing structure (3) for storing samples is movably arranged on one side of the chromatograph box (1), a dustproof structure (4) for preventing dust is arranged on the surface of the chromatograph box (1), a supporting leg (5) for supporting is fixedly arranged at the bottom of the chromatograph box (1), a moving mechanism (6) for moving and carrying is arranged in the supporting leg (5), and a hand wheel (7) for controlling the moving mechanism (6) is arranged at the bottom of the surface of the chromatograph box (1);

the moving mechanism (6) comprises a gear (61), the gear (61) is located inside the chromatograph box (1), a rack plate (62) is arranged on one side of the gear (61) in a meshed mode, moving wheels (65) are fixedly arranged at the bottom of the rack plate (62) through telescopic sleeve rods (63), a fixing plate (66) is arranged on the other side of the gear (61) in a meshed mode, a dust-proof plate (67) is fixedly arranged on one side, away from the gear (61), of the fixing plate (66), and heat dissipation holes (102) located on the surface of the chromatograph box (1) are formed in one side of the dust-proof plate (67);

guide rails (68) are fixedly mounted on two sides of the bottom of an inner cavity of the chromatograph box (1), a moving block (69) is connected inside the guide rails (68) in a sliding mode, a rack plate (62) is fixedly connected to one side of the moving block (69), a tooth groove is formed in one side, close to the gear (61), of the rack plate (62), and the gear (61) is meshed with the tooth groove;

one side, close to the gear (61), of the fixing plate (66) is provided with a connecting tooth groove (661), the connecting tooth groove (661) is meshed with the gear (61), the bottom of the fixing plate (66) is provided with a fixing groove (662), the inside of the fixing groove (662) is movably connected with a guide rod (663), and the surface of the guide rod (663) is sleeved with a telescopic spring (664);

one side of the fixing plate (66) far away from the gear (61) is fixedly connected with a dust guard (67), heat dissipation holes (102) are formed in the outer side of the dust guard (67), and the dust guard (67), the heat dissipation holes (102) and a dust screen (43) are arranged from inside to outside.

2. A chromatograph according to claim 1, wherein: the surface of roof (2) is from right side to left side and is provided with sample injector (21) and hydrogen flame ion detector (22) in proper order, and parallel arrangement between sample injector (21) and the hydrogen flame ion detector (22).

3. A chromatograph according to claim 1, wherein: the sample placement mechanism (3) comprises a fixing frame (31), a clamping block (32) is fixedly arranged at the bottom of the fixing frame (31), a placement block (33) is fixedly arranged at the top of the fixing frame (31), a placement groove (34) is formed in the top of the placement block (33), a clamping groove (101) is formed in the upper surface of the chromatograph box (1), and the clamping block (32) is clamped inside the clamping groove (101).

4. A chromatograph according to claim 1, wherein: dustproof mechanism (4) include slide rail (41), slide rail (41) fixed mounting is on the side of chromatograph case (1), the inside sliding connection of slide rail (41) has slider (42), one side fixedly connected with dust screen (43) of slider (42), be vertical parallel arrangement between louvre (102) and dust screen (43), louvre (102) set up the inboard under dust screen (43) promptly, the equal fixedly connected with gag lever post (44) in top and the bottom of slide rail (41).

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