Liquid bin and sample introduction device for infrared spectrometer

Abstract

The utility model relates to a liquid bin and a sampling device for an infrared spectrometer. The liquid bin comprises an upper fixing piece, a lower fixing piece, a first optical lens and a second optical lens. The first optical lens is inserted into the bottom of the upper fixing piece, and the second optical lens is inserted into the top of the lower fixing piece. The bottom of the upper fixing piece is attached to and fixedly connected with the top of the lower fixing piece, and a liquid cavity is formed between the first optical lens and the second optical lens. The upper fixing piece and / or the lower fixing piece are / is further provided with a liquid inlet channel and a liquid discharging channel which are communicated with the liquid cavity. A first light-transmitting hole is formed in the upper fixing piece, a second light-transmitting hole is formed in the lower fixing piece, and the first light-transmitting hole, the first optical lens, the liquid cavity, the second optical lens and the second light-transmitting hole form a light path. The liquid sample or the blank liquid is discharged into the closed liquid cavity through the liquid inlet channel, and the liquid sample or the blank liquid in the liquid cavity is discharged through the liquid discharge channel, so that the liquid sample or the blank liquid is rapidly discharged and discharged, and rapid detection and rapid cleaning are further realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to infrared spectrometer technical field especially, it relates to a liquid bin and infrared spectrometer with sampling device. BACKGROUND

[0002] The utility model discloses an infrared spectrometer comprising a liquid bin and an infrared spectrum transmission accessory. The liquid bin comprises two optical lenses and a gasket clamped between the two optical lenses, and a liquid cavity for containing a liquid sample is formed on the gasket. The infrared spectrum transmission accessory is used for emitting infrared light to the liquid bin to qualitatively and quantitatively detect the liquid sample.

[0003] The current liquid bin has the following problems:

[0004] Firstly, the liquid sample cannot be automatically sampled, the blank liquid cannot be automatically cleaned, and the continuous testing cannot be realized. The liquid bin has to be disassembled, the gasket has to be taken out, the liquid sample has to be added, the gasket has to be cleaned, and the blank solution has to be repeatedly cleaned before the next sample is tested, so the testing efficiency is extremely low.

[0005] Secondly, during the process of manually adding the liquid sample to the liquid cavity of the gasket and manually cleaning the gasket, if the liquid sample is a toxic organic solvent, the toxic organic solvent will be exposed and volatilized during the sampling and cleaning process, which will pollute the testing environment, endanger the health of the personnel, and the volatilization of the organic solvent will cause the concentration of the liquid to be tested to be inaccurate, which will affect the accuracy of the testing result (for example, when the infrared spectrum attenuated total reflection method is used to quantitatively detect the content of chloroform-dissolved silicone oil, chloroform is toxic and easy to volatilize). CONTENT OF THE UTILITY MODEL

[0006] (I) Technical problem to be solved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a liquid bin and a sampling device for an infrared spectrometer, which solves the technical problems that the current liquid bin cannot realize automatic sampling of the liquid sample, automatic cleaning of the blank liquid, and continuous testing, and the technical problem that the liquid sample has to be manually added to the liquid cavity of the gasket and the gasket has to be manually cleaned.

[0008] (II) Technical scheme

[0009] In order to achieve the above-mentioned purpose, the utility model adopts the main technical scheme comprising:

[0010] Firstly, the utility model embodiment provides a liquid bin, which comprises an upper fixing member, a lower fixing member, a first optical lens, and a second optical lens.

[0011] The first optical lens is inserted into the bottom of the upper fixing member, and the second optical lens is inserted into the top of the lower fixing member.

[0012] The bottom of the upper fixing member is attached to and fixedly connected to the top of the lower fixing member, and a liquid cavity is formed between the first optical lens and the second optical lens; a liquid inlet channel and a liquid outlet channel that communicate with the liquid cavity are further formed in the upper fixing member and / or the lower fixing member;

[0013] A first light-transmitting hole is formed in the upper fixing member, and a second light-transmitting hole is formed in the lower fixing member; the first light-transmitting hole, the first optical lens, the liquid cavity, the second optical lens and the second light-transmitting hole form an optical path.

[0014] According to the utility model, the bottom of the upper fixing member is provided with a first recess, and the first optical lens is inserted into the first recess and recessed in the bottom of the upper fixing member;

[0015] The top of the lower fixing member is provided with a second recess, and the second optical lens is inserted into the second recess and flush with the top of the lower fixing member;

[0016] When the bottom of the upper fixing member is attached to and fixedly connected to the top of the lower fixing member, the first optical lens, the second optical lens and the first recess enclose the liquid cavity.

[0017] According to the utility model, the upper fixing member comprises an upper fixing plate and a sealing seat;

[0018] The bottom of the upper fixing plate is provided with a third recess, the sealing seat is inserted into the third recess, and the bottom of the sealing seat is provided with the first recess;

[0019] The diameter of the first optical lens gradually decreases from top to bottom, and the peripheral wall of the first optical lens cooperates with the tapered surface of the first recess.

[0020] According to the utility model, the sealing seat is a plastic sealing seat.

[0021] According to the utility model, the upper fixing plate is provided with a liquid inlet connector and a liquid outlet connector, the sealing seat is provided with a liquid inlet pipeline that communicates between the liquid inlet connector and the first recess at two ends, and a liquid outlet pipeline that communicates between the liquid outlet connector and the first recess at two ends;

[0022] In the direction of liquid flow, the liquid inlet connector, the liquid inlet pipeline and the first recess form the liquid inlet channel, and the liquid outlet connector, the liquid outlet pipeline and the first recess form the liquid outlet channel.

[0023] According to the utility model, the liquid inlet connector and the liquid outlet connector are quick connectors.

[0024] According to the utility model, the bottom of the sealing seat is further provided with an annular groove surrounding the first groove, an annular sealing ring is arranged in the annular groove, and the annular sealing ring can press against the top of the second optical lens.

[0025] According to the utility model, a first vertical hole is formed in the upper fixed plate, a second vertical hole is formed in the sealing seat, and the first vertical hole and the second vertical hole are coaxial and communicate to form a first light-transmitting hole vertically oriented.

[0026] A second light-transmitting hole vertically oriented is formed in the lower fixed part.

[0027] When the bottom of the upper fixed part is attached to and fixedly connected to the top of the lower fixed part, the first light-transmitting hole, the first optical lens, the liquid cavity, the second optical lens and the second light-transmitting hole are coaxial and form a vertical light path.

[0028] According to the utility model, the height of the liquid cavity is 0.1mm-1mm.

[0029] In the second aspect, the utility model further provides an infrared spectrometer sample inlet device, which comprises the liquid bin, and further comprises a fixing mechanism, a liquid flow controller and an infrared transmission accessory.

[0030] The infrared transmission accessory can be detachably connected to the first side of the fixing mechanism, and a through hole is formed in the fixing mechanism; the bottom of the lower fixed part extends horizontally outward on both sides to form lugs, the lugs can be inserted into the insertion slots on the second side of the fixing mechanism, so that the lower fixed part can be lifted relative to the fixing mechanism, and the liquid bin can be detachably connected to the fixing mechanism; the infrared light emitted by the infrared transmission accessory can enter the second light-transmitting hole through the through hole.

[0031] The liquid flow controller can be connected to the liquid inlet channel and the liquid outlet channel to discharge liquid into the liquid cavity and discharge liquid in the liquid cavity.

[0032] (Three) beneficial effects

[0033] The liquid warehouse of the utility model has the advantages that: the liquid warehouse is capable of discharging liquid samples or blank liquids into the closed liquid cavity through the liquid inlet channel and discharging the liquid samples or blank liquids in the liquid cavity through the liquid outlet channel, so as to realize the rapid discharge of the liquid samples or blank liquids in the liquid cavity and the rapid detection of the liquid samples and the rapid cleaning of the liquid cavity by the blank liquids, and the liquid warehouse does not need to be disassembled in the process, the detection efficiency is improved, the liquid cavity is closed in the detection and cleaning process, the volatile liquid samples are prevented from volatilizing to cause environmental hazards and harm to the operators, the volatilization of the liquid samples is prevented from causing the reduction of the concentration, and the accuracy of the measurement results is improved.

[0034] The infrared spectrometer sample feeding device can realize automatic sampling and automatic cleaning of the closed liquid cavity through the liquid flow controller, rapid continuous testing, and effective prevention of the volatilization of organic solvents. The infrared transmission accessory and the liquid warehouse are connected to the two sides of the fixing mechanism through the fixing mechanism, and the lower fixing member can be lifted relative to the fixing mechanism to adjust the height position of the second light transmission hole, so that the second light transmission hole, the through hole and the emission end of the infrared transmission accessory are in communication, and the second light transmission hole is coaxial with the emission end of the infrared transmission accessory, so that the infrared light emitted by the infrared transmission accessory can enter the light path through the through hole and the second light transmission hole in sequence to detect the liquid sample in the liquid cavity. Therefore, the infrared spectrometer sample feeding device can realize automatic liquid feeding and liquid discharging of the closed liquid cavity, and can cooperate with the infrared transmission accessory to detect the liquid sample in the liquid cavity, and the detection efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a three-dimensional schematic view of the liquid warehouse of the utility model;

[0036] Figure 2 It is a schematic view of C-C of Figure 1

[0037] Figure 3 It is an enlarged schematic view of D of Figure 2

[0038] Figure 4 It is an enlarged schematic view of B-B of Figure 1

[0039] Figure 5 It is a three-dimensional schematic view of the liquid flow controller;

[0040] Figure 6 It is a rear view of Figure 5

[0041] Figure 7 It is an assembly view of the liquid warehouse and the fixing mechanism;

[0042] ​​​​Figure 8 For Figure 7 the front view.

[0043]

Explanation of reference signs

[0044] 1: liquid tank; 11: upper fixing member; 111: upper fixing plate; 1111: third groove; 1112: liquid inlet connector; 1113: liquid outlet connector; 112: sealing seat; 1121: first groove; 1122: liquid inlet pipeline; 1123: liquid outlet pipeline; 1124: liquid inlet hole; 1125: liquid outlet hole; 1126: annular groove; 113: first light transmission hole; 114: connecting hole; 12: lower fixing member; 121: second light transmission hole; 122: second groove; 123: lug; 13: first optical lens; 14: second optical lens; 15: annular sealing ring;

[0045] 2: fixing mechanism; 21: support seat; 22: connecting plate; 221: insertion slot; 222: through hole;

[0046] 3: liquid flow controller; 31: controller main body; 32: liquid inlet bottle; 33: liquid outlet bottle; 34: pipeline;

[0047] A: liquid cavity. DETAILED DESCRIPTION

[0048] In order to better explain the utility model, so as to facilitate understanding, the following will be combined with the drawings, through specific embodiments, the utility model is described in detail. Among them, the "upper", "lower" orientation terms mentioned in embodiment 1 are taken as the reference of the orientation. The "upper", "lower" orientation terms mentioned in embodiment 2 are taken as the reference of the orientation. Figure 1 Figure 7

[0049] Embodiment 1

[0050] Referring to Figures 1-4 , the liquid tank provided by the utility model embodiment comprises an upper fixing member 11, a lower fixing member 12, a first optical lens 13 and a second optical lens 14.

[0051] ​​The first optical lens 13 is inserted into the bottom of the upper fixing member 11, and the second optical lens 14 is inserted into the top of the lower fixing member 12. The bottom of the upper fixing member 11 is attached to and fixedly connected to the top of the lower fixing member 12, and a liquid cavity A is formed between the first optical lens 13 and the second optical lens 14. The upper fixing member 11 and / or the lower fixing member 12 is further provided with a liquid inlet channel and a liquid outlet channel which communicate with the liquid cavity A. The upper fixing member 11 is provided with a first light-transmitting hole 113, and the lower fixing member 12 is provided with a second light-transmitting hole 121. The first light-transmitting hole 113, the first optical lens 13, the liquid cavity A, the second optical lens 14 and the second light-transmitting hole 121 form a light path to detect the liquid sample contained in the liquid cavity A.

[0052] In use, the liquid sample or the blank liquid is discharged into the closed liquid cavity A through the liquid inlet channel, and the liquid sample or the blank liquid in the liquid cavity A is discharged through the liquid outlet channel, so as to realize the rapid discharge and discharge of the liquid sample or the blank liquid in the liquid cavity A, and further realize the rapid detection of the liquid sample and the rapid cleaning of the liquid cavity A by the blank liquid. In the process, the liquid tank 1 does not need to be disassembled, the detection efficiency is improved, and the liquid cavity A is closed during the detection and cleaning process, so as to avoid the volatilization of the liquid sample with volatile components from causing harm to the environment and the operator, and to avoid the volatilization of the liquid sample from causing the concentration to be reduced, thereby improving the accuracy of the measurement results. At the same time, the structure of the liquid tank 1 is simple and convenient to assemble.

[0053] Further, the bottom of the upper fixing member 11 is provided with a first recess 1121, and the first optical lens 13 is inserted into the first recess 1121 and recessed in the bottom of the upper fixing member 11. The top of the lower fixing member 12 is provided with a second recess 122, and the second optical lens 14 is inserted into the second recess 122 and flush with the top of the lower fixing member 12. In this way, the insertion between the first optical lens 13 and the upper fixing member 11 and the insertion between the second optical lens 14 and the lower fixing member 12 can be conveniently realized.

[0054] When the bottom of the upper fixing member 11 is attached to and fixedly connected to the top of the lower fixing member 12, the first optical lens 13 and the second optical lens 14 are arranged in a top-down manner, and the first optical lens 13, the second optical lens 14 and the first recess 1121 enclose the liquid cavity A. The height of the liquid cavity A located between the first optical lens 13 and the second optical lens 14 is the detection height of the liquid sample.

[0055] Preferably, the height of the liquid cavity A is 0.1mm-1mm, so as to meet the detection requirements of the liquid sample at different heights. In actual use, different heights of the first optical lens 13 can be replaced to adjust the height of the first optical lens 13 recessed in the bottom of the upper fixing member 11, that is, the height of the liquid cavity A located between the first optical lens 13 and the second optical lens 14 can be adjusted.

[0056] Specifically, the upper fixing member 11 comprises an upper fixing plate 111 and a sealing seat 112.

[0057] The bottom of the upper fixing plate 111 is provided with a third recess 1111, and the sealing seat 112 is inserted into the third recess 1111. The bottom of the sealing seat 112 is provided with a first recess 1121 for inserting the first optical lens 13. The diameter of the first optical lens 13 gradually decreases from top to bottom, and the peripheral wall of the first optical lens 13 is taperedly matched with the first recess 1121, so as to conveniently realize the insertion connection between the first optical lens 13 and the upper fixing member 11, and to ensure that the first optical lens 13 does not slide off.

[0058] More specifically, the sealing seat 112 is a plastic sealing seat, which has elasticity and can be elastically deformed during the insertion of the first optical lens 13 into the third recess 1111, so as to realize the interference fit between the peripheral wall of the first optical lens 13 and the first recess 1121, to achieve the close tapered fit, and to avoid the first optical lens 13 from sliding off.

[0059] Further, the upper fixing plate 111 is provided with a liquid inlet connector 1112 and a liquid outlet connector 1113, and the sealing seat 112 is provided with a liquid inlet pipeline 1122 and a liquid outlet pipeline 1123, both ends of the liquid inlet pipeline 1122 being communicated with the liquid inlet connector 1112 and the first recess 1121, and both ends of the liquid outlet pipeline 1123 being communicated with the liquid outlet connector 1113 and the first recess 1121.

[0060] In the direction of liquid flow, the liquid inlet connector 1112, the liquid inlet pipeline 1122 and the first recess 1121 form a liquid inlet channel for the liquid inlet of the liquid cavity A, and the first recess 1121, the liquid outlet pipeline 1123 and the liquid outlet connector 1113 form a liquid outlet channel for the liquid outlet of the liquid cavity A in sequence.

[0061] In use, one of the liquid inlet connector 1112 and the liquid outlet connector 1113 can be selected as the liquid inlet connector 1112, and the other one can be used as the liquid outlet connector 1113, so as to improve the connection efficiency of the liquid inlet connector 1112 and the liquid outlet connector 1113 with the liquid flow controller 3 for liquid supply and liquid discharge.

[0062] Specifically, the liquid outlet pipeline 1123 and the liquid inlet pipeline 1122 are both communicated with the peripheral wall of the first recess 1121.

[0063] Preferably, the liquid inlet connector 1112 and the liquid outlet connector 1113 are symmetrically arranged on the side wall of the upper fixing plate 111 along the length direction of the upper fixing plate 111, and the liquid inlet connector 1112 and the liquid outlet connector 1113 can be used interchangeably, so as to improve the connection efficiency with the liquid flow controller 3 for liquid supply and liquid discharge.

[0064] More preferably, the liquid inlet connector 1112 and the liquid outlet connector 1113 are quick connectors, so as to facilitate quick connection with the liquid flow controller 3 for liquid supply and discharge, and also to facilitate quick replacement when the pipe 34 or the pipe 34 connector for connecting the liquid inlet connector 1112 and the liquid outlet connector 1113 on the liquid flow controller 3 is damaged and the liquid inlet connector 1112 and the liquid outlet connector 1113 are damaged.

[0065] Preferably, the bottom of the sealing seat 112 is further provided with a transversely extending liquid inlet opening 1124 and a liquid outlet opening 1125. The two ends of the liquid inlet opening 1124 are respectively connected to the liquid inlet pipe 1122 and the first recess 1121, and the two ends of the liquid outlet opening 1125 are respectively connected to the liquid outlet pipe 1123 and the first recess 1121.

[0066] In the direction of liquid flow, the liquid inlet connector 1112, the liquid inlet pipe 1122, the liquid inlet opening 1124 and the first recess 1121 form a liquid inlet channel, and the first recess 1121, the liquid outlet opening 1125, the liquid outlet pipe 1123 and the liquid outlet connector 1113 form a liquid outlet channel in sequence.

[0067] Further, the bottom of the sealing seat 112 is further provided with an annular recess 1126 surrounding the first recess 1121, and an annular sealing ring 15 is arranged in the annular recess 1126. The annular sealing ring 15 can seal the gap between the sealing seat 112 and the second optical lens 14, so as to prevent the liquid in the liquid chamber A, the liquid inlet channel and the liquid outlet channel from leaking through the gap between the sealing seat 112 and the second optical lens 14, and also to prevent the liquid sample in the liquid chamber A from volatilizing, thereby ensuring the accuracy of detection. Meanwhile, when the bottom of the upper fixing member 11 is attached to and fixedly connected to the top of the lower fixing member 12, the annular sealing ring 15 can also press against the top of the second optical lens 14, so as to tightly press the second optical lens 14 against the second recess 122, thereby preventing the second optical lens 14 from moving upward.

[0068] Optionally, the annular sealing ring 15 is an O-shaped sealing ring.

[0069] Further, a first vertical hole is formed in the upper fixing plate 111, a second vertical hole is formed in the sealing seat 112, and the first vertical hole and the second vertical hole are coaxial and connected to form a vertically oriented first light transmission hole 113. A second light transmission hole 121 is vertically oriented on the lower fixing member 12.

[0070] When the bottom of the upper fixing member 11 is attached to and fixedly connected to the top of the lower fixing member 12, the first optical lens 13 and the second optical lens 14 are both axially vertical, and the first light transmission hole 113, the first optical lens 13, the liquid chamber A, the second optical lens 14 and the second light transmission hole 121 are coaxial and form a vertical light path.

[0071] Optionally, the connecting holes 114 on the upper fixing plate 111 and the connecting holes 114 on the second fixing member can be connected by fasteners for assembly. Preferably, the fasteners are screws.

[0072] Preferably, the upper fixing plate 111 and the second fixing member are both metal structural members to ensure the use strength.

[0073] Embodiment 2

[0074] Reference Figures 5-8 , the embodiment further provides a sample feeding device for an infrared spectrometer based on the embodiment 1, which comprises a liquid tank 1, a liquid flow controller 3, a fixing mechanism 2 and an infrared transmission accessory.

[0075] The liquid flow controller 3 can be connected to the liquid inlet channel and the liquid outlet channel to discharge liquid into the liquid cavity A and discharge liquid in the liquid cavity A, so as to realize automatic sample feeding and automatic cleaning of the closed liquid cavity A, realize rapid and continuous testing, and effectively avoid the volatilization of organic solvents.

[0076] The infrared transmission accessory can be detachably connected to the first side of the fixing mechanism 2. The fixing mechanism 2 is provided with a through hole 222. The bottom of the lower fixing member 12 extends outwardly to form lugs 123 on both sides, and the lugs 123 can be inserted into the insertion slots 221 on the second side of the fixing mechanism 2, so that the lower fixing member 12 can be lifted relative to the fixing mechanism 2, thereby adjusting the height position of the second light transmission hole 121, so that the second light transmission hole 121, the through hole 222 and the emission end of the infrared transmission accessory are all in communication, and the second light transmission hole 121 is coaxial with the emission end of the infrared transmission accessory. At the same time, the liquid tank 1 can also be detachably connected to the fixing mechanism 2. The infrared light emitted by the infrared transmission accessory can enter the light path in turn through the through hole 222 and the second light transmission hole 121, so as to detect the liquid sample in the liquid cavity A.

[0077] Specifically, the fixing mechanism 2 comprises a support seat 21 which can be supported on a workbench, and a connecting plate 22 fixed on the support seat 21.

[0078] The connecting plate 22 is vertically oriented, and the connecting plate 22 is provided with a horizontally oriented through hole 222. The second side of the connecting plate 22 is provided with two insertion slots 221 which are oppositely arranged and vertically oriented, so that the two lugs 123 on the lower fixing member 12 are correspondingly inserted, and the lower fixing member 12 can be lifted relative to the connecting plate 22 to adjust the height position of the second light transmission hole 121. The liquid tank 1 can also be detachably connected to the connecting plate 22 by screws. The first side of the connecting plate 22 can be detachably connected to the infrared transmission accessory by screws.

[0079] Specifically, the liquid flow controller 3 comprises a controller body 31, a pipeline 34, a liquid inlet bottle 32 for containing a liquid sample or a blank solution, and a liquid outlet bottle 33 for containing liquid discharged from the liquid tank 1.

[0080] The controller body 31 is connected to the liquid inlet bottle 32 through the pipeline 34, connected to the liquid inlet channel and the liquid outlet channel of the liquid tank 1 through the pipeline 34, and connected to the liquid outlet bottle 33 through the pipeline 34. The controller body 31 can control the liquid sample or the blank solution contained in the liquid inlet bottle 32 to enter the liquid cavity A of the liquid tank 1 through the pipeline 34 and the liquid inlet channel of the liquid tank 1 in sequence, and can control the liquid sample or the blank solution in the liquid cavity A of the liquid tank 1 to be discharged into the liquid outlet bottle 33 through the liquid outlet channel and the pipeline 34 in sequence, thereby realizing automatic liquid inlet and liquid outlet of the liquid cavity A of the liquid tank 1 and accurately setting the liquid addition amount according to requirements.

[0081] Therefore, the sample injection device for the infrared spectrometer can realize liquid inlet or liquid outlet of the closed liquid cavity A without disassembling the liquid tank 1, realize continuous detection of the liquid sample, and greatly improve the test efficiency.

[0082] More specifically, the pipeline 34 comprises a liquid inlet pipe and a liquid outlet pipe, and the two ends of the liquid inlet pipe are respectively connected to the liquid inlet bottle 32 and the liquid inlet channel, and the two ends of the liquid outlet pipe are respectively connected to the liquid outlet bottle 33 and the liquid outlet channel. A liquid inlet peristaltic pump is arranged on the liquid inlet pipe, and a liquid outlet peristaltic pump is arranged on the liquid outlet pipe. The liquid inlet peristaltic pump and the liquid outlet peristaltic pump are arranged on the controller body 31, and a motor for driving the liquid inlet peristaltic pump and the liquid outlet peristaltic pump to operate is arranged on the controller body 31.

[0083] In use, the motor can drive the liquid inlet peristaltic pump to open, so that the liquid sample or the blank solution contained in the liquid outlet bottle 33 enters the liquid cavity A of the liquid tank 1 through the liquid inlet pipe and the liquid inlet channel of the liquid tank 1 in sequence. The motor can also drive the liquid outlet peristaltic pump to open, so that the liquid sample or the blank solution in the liquid cavity A is discharged into the liquid outlet bottle 33 through the liquid outlet channel and the liquid outlet pipe in sequence.

[0084] Therefore, the sample injection device for the infrared spectrometer can realize automatic liquid inlet or liquid outlet of the closed liquid cavity A of the liquid tank 1.

[0085] Further, the use principle of the sample injection device for the infrared spectrometer is as follows:

[0086] S1: Fix the infrared transmission accessory on the first side of the connecting plate 22, keep the optical path of the liquid tank 1 horizontally oriented, insert the lugs 123 on the lower fixing member 12 into the insertion slots 221 on the second side of the connecting plate 22 from top to bottom, adjust the lower fixing member 12 up and down, so that the second light transmission hole 121, the through hole 222 and the emission end of the infrared transmission accessory are all in communication, the second light transmission hole 121 is coaxial with the emission end of the infrared transmission accessory, and then the liquid tank 1 is fixed on the connecting plate 22 by screws.

[0087] S2: The controller body 31 connects the liquid inlet bottle 32 and the liquid outlet bottle 33 through the pipeline 34, and connects the liquid inlet channel and the liquid outlet channel of the liquid tank 1 through the pipeline 34. The liquid inlet flow or total amount is set, and the automatic liquid inlet and liquid outlet of the liquid cavity A are controlled by the controller body 31.

[0088] S3: The infrared transmission accessory emits infrared light to the second light transmission hole 121 of the liquid tank 1 through the through hole 222, so that the infrared light is transmitted along the light path, and the infrared spectrum data of the liquid sample in the liquid cavity A is collected.

[0089] S4: After the collection is completed, the automatic liquid outlet and cleaning of the liquid cavity A are controlled by the controller body 31.

[0090] Therefore, the sample inlet device for the infrared spectrometer can realize rapid sampling, rapid cleaning, and closed operation.

[0091] Specifically, in step S2, the controller body 31 connects the liquid inlet connector 1112 and the liquid outlet connector 1113 of the liquid tank 1 through the pipeline 34.

[0092] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "embodiments", "examples", "specific examples" or "some examples" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0093] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the person skilled in the art can modify, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A liquid cartridge, characterized by, The liquid tank comprises an upper fixing member (11), a lower fixing member (12), a first optical lens (13) and a second optical lens (14); The first optical lens (13) is inserted into the bottom of the upper fixing member (11), and the second optical lens (14) is inserted into the top of the lower fixing member (12); The bottom of the upper fixing member (11) is fixedly connected to the top of the lower fixing member (12), and a liquid cavity (A) is formed between the first optical lens (13) and the second optical lens (14); a liquid inlet channel and a liquid outlet channel are formed in the upper fixing member (11) and / or the lower fixing member (12) and communicate with the liquid cavity (A); A first light-transmitting hole (113) is formed in the upper fixing member (11), and a second light-transmitting hole (121) is formed in the lower fixing member (12); the first light-transmitting hole (113), the first optical lens (13), the liquid cavity (A), the second optical lens (14) and the second light-transmitting hole (121) form an optical path.

2. The liquid tank of claim 1, wherein A first groove (1121) is formed in the bottom of the upper fixing member (11), and the first optical lens (13) is inserted into the first groove (1121) and recessed in the bottom of the upper fixing member (11); A second groove (122) is formed in the top of the lower fixing member (12), and the second optical lens (14) is inserted into the second groove (122) and flush with the top of the lower fixing member (12); When the bottom of the upper fixing member (11) is fixedly connected to the top of the lower fixing member (12), the first optical lens (13), the second optical lens (14) and the first groove (1121) enclose the liquid cavity (A).

3. The liquid cartridge of claim 2, wherein, The upper fixing member (11) comprises an upper fixing plate (111) and a sealing seat (112); A third groove (1111) is formed in the bottom of the upper fixing plate (111), and the sealing seat (112) is inserted into the third groove (1111); the bottom of the sealing seat (112) is provided with the first groove (1121); The diameter of the first optical lens (13) gradually decreases from top to bottom, and the peripheral wall of the first optical lens (13) is taperedly matched with the first groove (1121).

4. The liquid cartridge of claim 3, wherein, The sealing seat (112) is a plastic sealing seat.

5. The liquid tank of claim 3, wherein The upper fixing plate (111) is provided with a liquid inlet connector (1112) and a liquid outlet connector (1113); the sealing seat (112) is provided with a liquid inlet pipeline (1122) and a liquid outlet pipeline (1123), wherein the two ends of the liquid inlet pipeline (1122) respectively communicate with the liquid inlet connector (1112) and the first groove (1121), and the two ends of the liquid outlet pipeline (1123) respectively communicate with the liquid outlet connector (1113) and the first groove (1121). The liquid inlet connector (1112), the liquid inlet pipeline (1122) and the first groove (1121) form the liquid inlet channel, and the liquid outlet connector (1113), the liquid outlet pipeline (1123) and the first groove (1121) form the liquid outlet channel.

6. The liquid cartridge of claim 5, wherein, The liquid inlet connector (1112) and the liquid outlet connector (1113) are quick connectors.

7. The liquid cartridge of claim 5, wherein, The bottom of the sealing seat (112) is further provided with an annular groove (1126) surrounding the first groove (1121), and an annular sealing ring (15) is arranged in the annular groove (1126) and can press against the top of the second optical lens (14).

8. The liquid tank of claim 3, wherein, A first vertical hole is formed in the upper fixed plate (111), a second vertical hole is formed in the sealing seat (112), and the first vertical hole and the second vertical hole are coaxial and communicate to form a vertically oriented first light transmission hole (113); A second light transmission hole (121) is formed in the lower fixed part (12); When the bottom of the upper fixed part (11) is attached to and fixedly connected to the top of the lower fixed part (12), the first light transmission hole (113), the first optical lens (13), the liquid cavity (A), the second optical lens (14) and the second light transmission hole (121) are coaxial and form a vertical light path.

9. The liquid cartridge of claim 1, wherein, The height of the liquid cavity (A) is 0.1mm-1mm.

10. A sample introduction device for an infrared spectrometer, characterized by The liquid tank of any one of claims 1-9, further comprising a fixing mechanism (2), a liquid flow controller (3) and an infrared transmission accessory; The infrared transmission accessory can be detachably connected to the first side of the fixing mechanism (2), and a through hole (222) is formed in the fixing mechanism (2); the bottom of the lower fixed part (12) extends horizontally outward to form lugs (123) on both sides, which can be inserted into the insertion slot (221) on the second side of the fixing mechanism (2) to allow the lower fixed part (12) to be lifted relative to the fixing mechanism (2), and the liquid tank (1) can also be detachably connected to the fixing mechanism (2); the infrared light emitted by the infrared transmission accessory can enter the second light transmission hole (121) through the through hole (222); The liquid flow controller (3) can be connected to the liquid inlet channel and the liquid outlet channel to discharge liquid into the liquid cavity (A) and discharge liquid in the liquid cavity (A). The liquid tank of any one of claims 1-9, further comprising a fixing mechanism (2), a liquid flow controller (3) and an infrared transmission accessory;

Images