Movable chromatographic analyzer

Abstract

The utility model relates to a movable chromatographic analyzer which comprises two draw-bar boxes, a plurality of rollers are mounted on each draw-bar box, a chromatographic instrument and a sample processing system are fixed in one draw-bar box, one end of the sample processing system is connected with and communicated with the chromatographic instrument, the chromatographic instrument is further provided with an air inlet, and the air inlet is communicated with the sample processing system. The sample processing system is used for inputting sample gas, a gas cylinder is fixed in the other draw-bar box, and the gas cylinder is provided with a gas outlet communicated with the gas inlet so as to supply gas to the chromatographic instrument. According to the utility model, the technical problems that the existing on-line chromatographic analyzer is inconvenient to move and transport in various occasions, and the use scene is relatively limited can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas analysis equipment technical field, especially a mobile chromatographic analysis appearance. BACKGROUND

[0002] The chromatographic analysis appearance reaches the purpose of separating mixture through the physical separation technology of chromatography, utilizes the distribution difference of each component in the mixture between two immiscible phases (stationary phase and mobile phase), carries out multiple equilibrium in two phases, separates mixture. In natural gas / coal bed gas long pipeline industry, the gas component content of fuel gas needs to be detected irregularly, because the traditional chromatographic analysis appearance is complex to operate, if installing online chromatographic analysis appearance (such as adopting Honeywell Encal3000 online chromatographic analysis appearance), it needs to be equipped with corresponding analysis room, and the investment cost and maintenance cost are higher, and its use occasion is relatively single. SUMMARY

[0003] The utility model provides a mobile chromatographic analysis appearance for the technical problem of inconvenient movement and transportation of the existing online chromatographic analysis appearance in various occasions and relatively limited use scene.

[0004] The utility model solves the technical problem that the utility model discloses a kind of mobile chromatographic analysis appearance, including two draw-bar boxes, two described draw-bar boxes are equipped with multiple gyro wheel, one of them described draw-bar box is fixed with chromatograph and one end connection and intercommunication chromatograph described sample processing system, chromatograph is further provided with air inlet, and sample processing system is used to input sample gas, another described draw-bar box is fixed with gas cylinder, and the gas cylinder is provided with outlet for intercommunication with the air inlet, to supply gas to chromatograph.

[0005] The utility model has the advantages that the draw-bar box equipped with gyro wheel is used to install chromatograph and other instruments and equipment, to improve the technical problem that the existing online chromatographic analysis appearance is inconvenient to move and transport in various occasions, and the use scene is relatively limited;And two draw-bar boxes are arranged to separate chromatograph, sample processing system and gas cylinder, to reduce weight, facilitate transportation and movement.

[0006] The utility model has the advantages that the draw-bar box equipped with gyro wheel is used to install chromatograph and other instruments and equipment, to improve the technical problem that the existing online chromatographic analysis appearance is inconvenient to move and transport in various occasions, and the use scene is relatively limited;And two draw-bar boxes are arranged to separate chromatograph, sample processing system and gas cylinder, to reduce weight, facilitate transportation and movement.

[0007] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0008] Further, the sample processing system includes a ball valve, a pressure reducing valve with an inlet end communicating with an outlet end of the ball valve, and a membrane filter with an inlet end communicating with an outlet end of the pressure reducing valve, and the outlet end of the membrane filter communicates with the chromatograph.

[0009] The beneficial effect of the above further scheme is that the sample gas is input into the chromatograph by opening the ball valve, the pressure reducing valve and the membrane filter.

[0010] Further, the sample processing system further comprises a particle filter, the gas inlet end of the particle filter is communicated with the gas outlet end of the ball valve, and the gas outlet end is communicated with the gas inlet end of the pressure reducing valve.

[0011] The beneficial effect of the above further scheme is that the sample gas input through the ball valve is preliminarily filtered through the particle filter.

[0012] Further, the pressure reducing valve is connected with a pressure gauge, and the membrane filter is connected with a flow meter.

[0013] The beneficial effect of the above further scheme is that the gas pressure at the pressure reducing valve is displayed through the pressure gauge, and the sample gas flow through the membrane filter is judged through the flow meter.

[0014] Further, the chromatograph is further connected and communicated with two exhaust valves, and the gas outlet ends of the two exhaust valves are simultaneously connected and communicated with a discharge pipe.

[0015] The beneficial effect of the above further scheme is that the gas is simultaneously discharged into the discharge pipe through the two exhaust valves, which is convenient for simultaneous processing.

[0016] Further, the gas inlet is provided with two, which are a carrier gas inlet and a standard gas inlet, and the gas cylinder is provided with two, which are a standard gas cylinder and a carrier gas cylinder.

[0017] The beneficial effect of the above further scheme is that the carrier gas is input into the chromatograph to push the sample gas into the chromatograph, and the standard gas is input into the chromatograph to compare with the sample gas.

[0018] Further, a plurality of mounting grooves are formed in the bottom of each of the two pull rod boxes, a base is fixedly connected to the bottom of each mounting groove, each base is located in the corresponding mounting groove and is fixedly connected to the bottom of the mounting groove at the upper end, a wheel seat is rotatably connected to the lower end of each base, the upper end of each wheel seat is rotatably connected to the corresponding base, each roller is rotatably connected to the lower end of each wheel seat, and a positioning member for keeping the wheel seat vertical is further connected to the upper end of each wheel seat.

[0019] The beneficial effect of the above further scheme is that when the two pull rod boxes are placed on the ground, the positioning of the positioning member can be cancelled, the wheel seat is rotated relative to the base, the bottom surface of the pull rod box touches the ground, and the rollers are synchronously rotated to leave the ground, so that the two pull rod boxes are kept on the same horizontal plane, the stability of the communication between the gas inlet and the gas outlet is ensured, and the disconnection caused by the rolling of the rollers is avoided.

[0020] Further, when the two trolley cases are placed on the ground, the wheel seat can be rotated relative to the base by canceling the positioning of the positioning member, so that the trolley case bottom surface touches the ground, and the wheels are synchronously rotated off the ground, thereby keeping the two trolley cases in the same horizontal plane, ensuring the stability of the air inlet and air outlet communication, and preventing disconnection caused by rolling of the wheels.

[0021] The beneficial effect of the above further scheme is that the position of the slide rod is kept stable by being threadedly connected to the trolley case, and then the wheel seat is clamped and limited by the right positioning plate and the left positioning plate, so that the wheels keep touching the ground, and the movement of the trolley case is realized.

[0022] Further, the slide rod is threadedly connected with a nut located between the wheel seat and the wall of the mounting groove.

[0023] The beneficial effect of the above further scheme is that when the slide rod is rotated and separated from the trolley case, the nut drives the wheel seat to rotate, so that the wheels are separated from the ground.

[0024] Further, the slide rod is a stepped shaft structure, and the diameter of one end of the slide rod is smaller than the diameter of the other end.

[0025] The beneficial effect of the above further scheme is that the nut can be quickly removed from the slide rod, and then the slide rod is quickly separated from the wheel seat. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is an internal structure diagram of one of the trolley cases of the mobile chromatographic analyzer of the utility model, and the arrow in the diagram indicates the air inlet direction;

[0027] Figure 2 It is a side view of one of the trolley cases of the mobile chromatographic analyzer of the utility model;

[0028] Figure 3 It is an internal structure diagram of the other trolley case of the mobile chromatographic analyzer of the utility model, and the arrow in the diagram indicates the air outlet direction;

[0029] Figure 4 It is a side view of the other trolley case of the mobile chromatographic analyzer of the utility model;

[0030] Figure 5 It is a partial sectional view of the trolley case of the mobile chromatographic analyzer of the utility model.

[0031] In the drawings, the components represented by each reference numeral are listed as follows:

[0032] 1, trolley case; 11, case body; 111, mounting groove; 12, case cover; 13, trolley;

[0033] 2, roller;

[0034] 3, chromatograph; 31, air inlet;

[0035] 4, sample processing system; 41, ball valve; 42, pressure reducing valve; 421, pressure gauge; 43, membrane filter; 431, flow meter; 44, particle filter; 45, exhaust valve; 46, exhaust pipe;

[0036] 5, gas cylinder;

[0037] 6, air outlet;

[0038] 7, base; 71, bottom plate; 72, rotating shaft;

[0039] 8, wheel seat; 81, U-shaped seat; 82, wheel shaft;

[0040] 9, positioning member; 91, sliding rod; 92, right positioning plate; 93, left positioning plate; 94, nut. DETAILED DESCRIPTION

[0041] The principles and characteristics of the present application are described below in conjunction with the accompanying drawings, and the examples are only used to explain the present application and are not intended to limit the scope of the present application.

[0042] Example 1

[0043] As Figures 1 to 4 A mobile chromatographic analyzer includes two draw-bar boxes 1, each of which is provided with a plurality of rollers 2, one of which is fixed with a chromatograph 3 and a sample processing system 4 connected to and communicating with the chromatograph 3, and the chromatograph 3 is further provided with an air inlet 31, and the sample processing system 4 is used to input sample gas, and the other draw-bar box 1 is fixed with a gas cylinder 5, and the gas cylinder 5 is provided with an air outlet 6 for communicating with the air inlet 31 to supply gas to the chromatograph 3.

[0044] The beneficial effects of the present embodiment are: the draw-bar box 1 provided with the roller 2 is used to carry the chromatograph 3 and other instruments, which improves the technical problem that the existing online chromatographic analyzer is not convenient to move and transport in various occasions, and the use scene is relatively limited; and the two draw-bar boxes 1 are provided to separate the chromatograph 3, the sample processing system 4 and the gas cylinder 5, which reduces the weight and facilitates transportation and movement.

[0045] As a specific scheme of the above embodiment, the chromatograph 3 and the air inlet 31, the sample processing system 4 can be connected and communicated by a seamless steel pipe, and the gas cylinder 5 and the air outlet 6 can be connected and communicated by a seamless steel pipe.

[0046] Among them, the air inlet 31 and the air outlet 6 can adopt a one-way valve, and the one-way valve is connected to the chromatograph 3 or the gas cylinder 5 through a seamless steel pipe.

[0047] Specifically, the one-way valve can pass through and be fixed on the box wall of the trolley case 1, that is, the air inlet 31 can be fixed on the box wall of one of the trolley cases 1, and the air outlet 6 can pass through and be fixed on the box wall of the other trolley case 1.

[0048] On the basis of the above embodiment, both of the trolley cases 1 include a box body 11 in an open-top structure, a box cover 12 rotatably connected to the open top of the box body 11 by a hinge, and a trolley 13 slidingly connected to the box body 11, and the other end of the box cover 12 is provided with a buckle matched with the box body 11, so as to place, store the chromatograph 3, the sample processing system 4 and the gas cylinder 5, and close each object in the box by the box cover 12. The whole trolley case 1 can be moved by pulling the trolley 13.

[0049] The roller 2 is installed at the bottom of the box body 11, and the roller 2 can adopt a universal wheel with brake function available in the market, which is convenient for temporary parking during movement.

[0050] The clamps are fixed in both of the trolley cases 1, so as to fix the chromatograph 3, the sample processing system 4 and the gas cylinder 5.

[0051] The protective layer is fixed on the inner walls of the two box bodies 11 and the box cover 12, which can adopt rubber material, can effectively buffer external collision or scratch, protect the surface of the equipment, ensure the accuracy and stability of the analysis, can prolong the service life of the equipment and improve the safety.

[0052] The power supply is also provided in one of the trolley cases 1, so as to supply power to the equipment. The USB interface fixed on the box wall of the box body 11 is also connected to the chromatograph 3, so as to realize data transmission.

[0053] Embodiment 2

[0054] As Figure 1 On the basis of embodiment 1, the sample processing system 4 includes a ball valve 41, a pressure reducing valve 42 with the gas inlet end communicated with the gas outlet end of the ball valve 41, and a membrane filter 43 with the gas inlet end communicated with the gas outlet end of the pressure reducing valve 42, and the gas outlet end of the membrane filter 43 is communicated with the chromatograph 3.

[0055] The beneficial effect of the preferred scheme in the above embodiment is that the sample gas is input into the chromatograph 3 by opening the ball valve 41, the pressure reducing valve 42 and the membrane filter 43, and the membrane filter 43 has a filtering effect.

[0056] The ball valve 41, the pressure reducing valve 42, the membrane filter 43 and the chromatograph 3 can be connected and communicated by seamless steel pipes, and a seamless steel pipe is connected to the gas inlet end of the ball valve 41, and the gas inlet end of the seamless steel pipe penetrates through and extends out of the box wall of the box body 11.

[0057] Embodiment 3

[0058] As Figure 1 On the basis of Embodiments 1 and 2, the sample processing system 4 further comprises a particle filter 44, the gas inlet end of which is connected to the gas outlet end of the ball valve 41, and the gas outlet end is connected to the gas inlet end of the pressure reducing valve 42.

[0059] The beneficial effect of the preferred solution in the above embodiment is that the sample gas input through the ball valve 41 is preliminarily filtered through the particle filter 44.

[0060] The particle filter 44, the ball valve 41 and the pressure reducing valve 42 can be connected and communicated by seamless steel pipes.

[0061] Embodiment 4

[0062] As Figure 1 On the basis of Embodiments 1-3, the pressure reducing valve 42 is connected with a pressure gauge 421, and the membrane filter 43 is connected with a flow meter 431.

[0063] The beneficial effect of the preferred solution in the above embodiment is that the gas pressure at the pressure reducing valve 42 is displayed through the pressure gauge 421, and the sample gas flow through the membrane filter 43 is determined through the flow meter 431.

[0064] Embodiment 5

[0065] As Figure 1 On the basis of Embodiments 1-4, the chromatograph 3 is further connected and communicated with two exhaust valves 45, and the gas outlet ends of the two exhaust valves 45 are simultaneously connected and communicated with a discharge pipe 46.

[0066] The beneficial effect of the preferred solution in the above embodiment is that the gas is simultaneously discharged into the discharge pipe 46 through the two exhaust valves 45, which is convenient for simultaneous processing.

[0067] The discharge pipe 46 can be made of a seamless steel pipe.

[0068] Embodiment 6

[0069] As Figures 1 to 4 On the basis of Embodiments 1-5, the gas inlet 31 is provided with two, which are respectively a carrier gas inlet and a standard gas inlet, and the gas cylinder 5 is provided with two, which are respectively a standard gas cylinder and a carrier gas cylinder.

[0070] The beneficial effect of the preferred solution in the above embodiment is that the carrier gas is input into the chromatograph to push the sample gas into the chromatograph, and the standard gas is input into the chromatograph to compare with the sample gas.

[0071] Embodiment 7

[0072] As Figure 5On the basis of the embodiments 1-6, the bottom of each of the two trolley cases 1 is provided with a plurality of mounting slots 111, the bottom of each mounting slot 111 is fixed with a base 7, each base 7 is located in the corresponding mounting slot 111 and is fixedly connected to the bottom of the mounting slot 111 at the upper end, the lower end of each base 7 is rotatably connected with a wheel seat 8, the upper end of each wheel seat 8 is rotatably connected to the corresponding base 7, each roller 2 is rotatably connected to the lower end of each wheel seat 8, and the upper end of each wheel seat 8 is further connected with a positioning member 9 for keeping the wheel seat 8 vertical.

[0073] The beneficial effect of the preferred scheme in the above embodiments is that when the two trolley cases 1 are placed on the ground, the positioning of the positioning member 9 can be cancelled, at the same time, the wheel seat 8 is rotated relative to the base 7 until the bottom surface of the trolley case 1 touches the ground, and the roller 2 is synchronously rotated off the ground, thereby keeping the two trolley cases 1 in the same horizontal plane, ensuring the stability of the connection between the air inlet 31 and the air outlet 6, and preventing the disconnection caused by the rolling, breaking and angle deviation of the roller 2.

[0074] On the basis of the above embodiments, one of the inner walls of each mounting slot 111 is in a through side opening structure penetrating the side wall of the trolley case 1, so as to control each positioning member 9 from the side opening structure.

[0075] The length of the side opening is greater than the length of the wheel seat 8 and the roller 2 connected together, so that the wheel seat 8 and the roller 2 can be rotated relative to the base 7 and retracted into the mounting slot 111 without affecting the placement of the trolley case 1.

[0076] On the basis of the above embodiments, the base 7 comprises two bottom plates 71 spaced apart and vertically arranged and two rotating shafts 72 rotatably connected to the two bottom plates 71 at both ends, and the upper ends of the two bottom plates 71 are fixedly connected to the bottom of the mounting slot 111.

[0077] The wheel seat 8 comprises a U-shaped seat 81 and a wheel shaft 82, the U-shaped seat 81 is in a lower opening structure, the closed end of the U-shaped seat 81 is rotatably connected to the rotating shaft 72, and the two ends of the wheel shaft 82 are rotatably connected to the two arms of the opening end of the U-shaped seat 81. The roller 2 is coaxially rotatably connected to the wheel shaft 82.

[0078] A sliding hole is provided through the closed end of the U-shaped seat 81 for installing the positioning member 9.

[0079] Embodiment 8

[0080] As Figure 5 On the basis of the embodiments 1-7, the positioning member 9 comprises a sliding rod 91 slidably connected to the wheel seat 8, a right positioning plate 92 fixedly connected to the sliding rod 91 and abutting against one side of the wheel seat 8, and a left positioning plate 93 fixedly connected to the base 7 and abutting against the other side of the wheel seat 8, and the end of the sliding rod 91 close to the left positioning plate 93 is threadedly connected to the trolley case 1.

[0081] The beneficial effect of the preferred solution in the above embodiment is that the position of the slide rod 91 is stabilized in a way that it is screwed to the trolley case 1, and then the wheel seat 8 is clamped and limited by the right positioning plate 92 and the left positioning plate 93, so that the roller 2 keeps touching the ground, and the movement of the trolley case 1 is realized.

[0082] As a parallel solution of the above embodiment, the left positioning plate 93 can be directly fixedly connected to any bottom plate 71.

[0083] A handle is fixed at the end of the slide rod 91, so that the slide rod 91 can be quickly rotated by the handle.

[0084] Embodiment 9

[0085] As Figure 5 On the basis of the embodiments 1-8, the slide rod 91 is screwed with a nut 94 between the wheel seat 8 and the groove wall of the mounting groove 111.

[0086] The beneficial effect of the preferred solution in the above embodiment is that when the slide rod 91 is rotated and separated from the trolley case 1, the nut 94 drives the wheel seat 8 to rotate, so that the roller 2 is separated from the ground.

[0087] The nut 94 has a spacing relative to the wheel seat, so that the slide rod 91 can be smoothly rotated and separated from the trolley case 1.

[0088] Embodiment 10

[0089] As Figure 5 On the basis of the embodiments 1-9, the slide rod 91 is a stepped shaft structure, and the diameter of one end of the slide rod 91 screwed to the trolley case 1 is smaller than the diameter of the other end.

[0090] The beneficial effect of the preferred solution in the above embodiment is that the nut 94 can be quickly removed from the slide rod 91, and then the slide rod 91 is separated from the wheel seat 8.

[0091] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0092] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply any relative importance or any meaning pertaining to the quantity of the features being described. Thus, a feature defined with "first", "second", etc. can include at least one of the features, explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

[0093] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connection", "fixed", and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless specifically defined otherwise. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0094] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0095] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0096] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A mobile chromatographic analyzer characterized by, The utility model provides a kind of chromatograph sample processing system, including two trolley cases (1), multiple rollers (2) are installed in two the trolley case (1), one of the trolley case (1) is fixed with chromatograph (3) and one end is connected and communicates sample processing system (4) of chromatograph (3), chromatograph (3) is further provided with air inlet (31), sample processing system (4) is used to input sample gas, another trolley case (1) is fixed with gas cylinder (5), gas cylinder (5) is provided with gas outlet (6) for communicating with air inlet (31), to supply gas to chromatograph (3).

2. The mobile chromatographic analyzer of claim 1, wherein, The sample processing system (4) includes a ball valve (41), a pressure reducing valve (42) having an inlet end communicating with an outlet end of the ball valve (41), and a membrane filter (43) having an inlet end communicating with an outlet end of the pressure reducing valve (42), and the outlet end of the membrane filter (43) communicates with the chromatograph (3).

3. The mobile chromatographic analyzer of claim 2, wherein, The sample processing system (4) further includes a particle filter (44), the inlet end of the particle filter (44) communicates with the outlet end of the ball valve (41), and the outlet end of the particle filter (44) communicates with the inlet end of the pressure reducing valve (42).

4. The mobile chromatographic analyzer of claim 2, wherein, The pressure reducing valve (42) is connected with a pressure gauge (421), and the membrane filter (43) is connected with a flow meter (431).

5. The mobile chromatographic analyzer of claim 1, wherein, The chromatograph (3) is further connected and communicated with two exhaust valves (45), and the outlet ends of the two exhaust valves (45) are simultaneously connected and communicated with a discharge pipe (46).

6. The mobile chromatographic analyzer of claim 1, wherein, The air inlet (31) is provided with two, two are carrier gas inlet, standard gas inlet, and the gas cylinder (5) is provided with two, respectively standard gas cylinder, carrier gas cylinder.

7. The mobile chromatographic analyzer of any one of claims 1-6, wherein, The bottom of each of the two trolley cases (1) is provided with a plurality of mounting grooves (111), the bottom of each of the mounting grooves (111) is fixed with a base (7), each of the bases (7) is located in the corresponding mounting groove (111), and the upper end is fixedly connected to the bottom of the mounting groove (111), the lower end of each of the bases (7) is rotatably connected with a wheel seat (8), the upper end of each of the wheel seats (8) is rotatably connected to the corresponding base (7), each of the rollers (2) is rotatably connected to the lower end of each of the wheel seats (8), and the upper end of each of the wheel seats (8) is further connected with a positioning member (9) for keeping the wheel seat (8) vertical.

8. The mobile chromatographic analyzer of claim 7, wherein, The positioning member (9) includes a sliding rod (91) slidably connected to the wheel seat (8), a right positioning plate (92) fixedly connected to the sliding rod (91) and abutting against one side of the wheel seat (8), and a left positioning plate (93) fixedly connected to the base (7) and abutting against the other side of the wheel seat (8), one end of the sliding rod (91) close to the left positioning plate (93) is threadedly connected to the trolley case (1).

9. The mobile chromatographic analyzer of claim 8, wherein, The sliding rod (91) is threadedly connected with a nut (94) located between the wheel seat (8) and the groove wall of the mounting groove (111).

10. The mobile chromatographic analyzer of claim 9, wherein, The sliding rod (91) is a stepped shaft structure, and the diameter of one end threadedly connected to the trolley case (1) is smaller than the diameter of the other end.

Images