Fixed detection device and ion chromatograph

Abstract

The utility model provides a fixed detection device and an ion chromatograph, the fixed detection device comprises a fixed structure, the fixed structure comprises a chassis and a stand column, the stand column is connected with the chassis to define a containing cavity, and the containing cavity is configured to be used for containing a leaching bottle loaded with leaching liquid; the detection structure comprises a liquid level part and a buzzing group, the buzzing group is connected with the stand column, and the liquid level part is connected with the buzzing group and used for detecting the liquid level of the leacheate. The liquid level of the leaching bottle can be detected, when the liquid level piece detects that the liquid level of leaching liquid reaches the lower limit, a signal of the liquid level piece is fed back to the buzzing set, and the buzzing set makes a sound to remind a user to replace the leaching bottle in time.

Description

Technical Field

[0001] The present application relates to the technical field of ion chromatography analysis, and more specifically, to a fixed detection device and an ion chromatograph. Background Art

[0002] Ion chromatography is a type of high-performance liquid chromatography, also known as high-performance ion chromatography (HPIC) or modern ion chromatography, which is different from traditional ion chromatographs. Chromatography mainly uses resins with a high degree of crosslinking and a low crosslinking capacity. The injection volume is very small, and a plunger pump is used to transport the eluent, usually with on-line automatic continuous conductivity detection of the eluent. Therefore, the detection of the eluent is particularly important. Utility Model Content

[0003] The purpose of the present application is to provide a fixed detection device and an ion chromatograph that can detect the eluent and emit a sound to remind the user to replace the eluent in a timely manner.

[0004] In a first aspect, an embodiment of the present application provides a fixed detection device, including: a fixed structure including a chassis and a column, the column being connected to the chassis to enclose a receiving cavity configured to receive a rinsing bottle loaded with an eluent; a detection structure including a liquid level member and a buzzer group, the buzzer group being connected to the column, and the liquid level member being connected to the buzzer group to detect the liquid level of the eluent.

[0005] In the above implementation process, the receiving cavity formed after the column is connected to the chassis can be used for the rinsing bottle. The chassis can support the rinsing bottle. The buzzer group is fixed to the column, and the liquid level member is connected to the buzzer group and corresponds to the rinsing bottle to detect the liquid level of the rinsing bottle. When the liquid level member detects that the liquid level of the eluent reaches the lower limit, it feeds back its signal to the buzzer group, and the buzzer group emits a sound to remind the user to replace the rinsing bottle in a timely manner.

[0006] In some embodiments, an installation groove is provided on the inner side of the column, and the installation groove is provided with an installation part configured to install the buzzer group.

[0007] In the above implementation process, the buzzer group is installed in the installation part, so that the installation part can accommodate the buzzer group and the liquid level member, avoiding interference when the receiving cavity places the rinsing bottle, realizing reasonable utilization of space, and also being beneficial to the liquid level detection of the rinsing bottle.

[0008] In some embodiments, the installation part includes installation holes, and a plurality of the installation holes are arranged in the up-down direction to adjust the installation position of the buzzer group.

[0009] In the above implementation process, the detection structure adjusts its position by connecting the installation parts at different positions, so as to meet different height requirements, realize the detection of liquid levels at different heights, and improve the applicability of the product.

[0010] In some embodiments, a plurality of the columns are provided, and the plurality of columns are spaced apart along the periphery of the chassis, and at least one of the plurality of columns is provided with the installation groove.

[0011] In the above implementation process, a plurality of columns are spaced apart on the chassis, and the columns are processed separately from the chassis. This can not only avoid using integral materials for processing and production, reduce cost investment, but also realize the limit fixation of the rinsing bottle. There is no obstruction between adjacent two columns, and the liquid level of the rinsing bottle can be directly observed, avoiding the situation where the liquid level cannot be observed due to a failure of the liquid level component.

[0012] In some embodiments, in the up and down direction, the cross-sectional dimension of the column on the side away from the chassis is smaller than the cross-sectional dimension of the column on the side close to the chassis.

[0013] In the above implementation process, by making the cross-sectional dimensions of the column inconsistent in the up and down direction, the column can form a certain taper, which plays a guiding role, making it smoother to place the rinsing bottle, facilitating operation and positioning, and preventing the rinsing bottle from being placed obliquely and affecting the detection.

[0014] In some embodiments, a wire passing hole is provided on the side of the column close to the chassis, and the wire passing hole is communicated with the installation groove.

[0015] In the above implementation process, after the buzzer group is fixedly installed on the column, its wire can pass through the wire passing hole. The wire passing hole can play a role in fixing and guiding, preventing the wire from shaking. At the same time, the wire is located above the chassis, which can prevent the rinsing liquid from splashing out and soaking the wire.

[0016] In some embodiments, the fixed detection device further includes a light guide column, the column is provided with a fixing hole, and the light guide column is arranged in the fixing hole.

[0017] In the above implementation process, the light guide column is installed on the column, which can play a role in conducting light and facilitate the liquid level detection of the rinsing liquid by the liquid level component.

[0018] In some embodiments, at least one chassis is provided, and when a plurality of chassis are provided, the outer edges of adjacent two chassis are mutually attached.

[0019] In some embodiments, the chassis is provided with a cut edge, and the cut edges of adjacent two chassis are mutually attached. This can reduce the outer size of the chassis, facilitate the placement of multiple groups of fixed detection devices together for use, save space, and also facilitate holding the rinsing bottle by hand.

[0020] In a second aspect, the present application further provides an ion chromatograph, including: the fixed detection device described in any one of the above.

[0021] Since the ion chromatograph provided in the second aspect includes the fixed detection device, the ion chromatograph has all the technical effects of the fixed detection device, which will not be elaborated here.

[0022] Other features and advantages of the present application will be described in the subsequent specification, or some features and advantages can be inferred from the specification or determined without doubt, or can be known by implementing the above technologies of the present application.

[0023] To make the above objects, features, and advantages of the present application more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, the detailed description is as follows. Description of the Drawings

[0024] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0025] Figure 1 Structural schematic diagram of the fixed detection device provided for the embodiment of the present application;

[0026] Figure 2 Explosion schematic diagram of the fixed detection device provided for the embodiment of the present application;

[0027] Figure 3 Structural schematic diagram of the column of the fixed detection device provided for the embodiment of the present application;

[0028] Figure 4 Structural schematic diagram of the chassis of the fixed detection device provided for the embodiment of the present application;

[0029] Figure 5 Structural schematic diagram of the buzzer group of the fixed detection device provided for the embodiment of the present application;

[0030] Figure 6 Assembly schematic diagram of the fixed detection device provided for the embodiment of the present application.

[0031] Reference numerals: 10, fixing structure; 101, chassis; 1011, trimming edge; 1012, second connection hole; 102, column; 1021, mounting groove; 1022, mounting hole; 1023, wire passing hole; 1024, fixing hole; 1025, first connection hole; 20, detection structure; 201, liquid level member; 202, buzzer group; 2021, buzzer; 2022, terminal; 2023, LED lamp; 2024, USB connector; 30, light guide column; 40, rinsing bottle; 50, screw. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Usually, the components of the embodiments of the present application described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0033] In the present application, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0034] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.

[0035] In addition, the terms "installation", "setting", "provided with", "connection", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or a point connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0036] In addition, terms such as "first", "second", etc. are mainly used to distinguish different devices, components or parts (specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, components or parts. Unless otherwise specified, the meaning of "a plurality of" is two or more. Embodiment

[0037] Ion chromatography is a type of high performance liquid chromatography, so it is also called high performance ion chromatography or modern ion chromatography. What differentiates it from traditional ion exchange chromatography columns is mainly that the resin has a very high cross-linking degree and a low exchange capacity, the injection volume is very small, and a plunger pump is used to transport the eluent, and usually online automatic continuous conductivity detection is performed on the eluate. Separating and determining common anions is the specialty of ion chromatographs. When a sample is injected, the determination results of 7 common ions can be obtained within about 20 minutes, which cannot be achieved by other analytical means. For the determination of cations, ion chromatography does not show superiority compared with AAS and ICP methods.

[0038] Ion chromatography is mainly used for the analysis of environmental samples, including anions and cations in surface water, drinking water, rainwater, domestic sewage and industrial wastewater, acid deposition and atmospheric particulate matter, etc., and the analysis of trace impurities in water and reagents related to the microelectronics industry.

[0039] In this application, the suppressor uses electrodes to electrolyze water to generate H + and OH - , and under the combined action of an electric field and an ion exchange membrane, the directional migration and exchange of ions are realized, the background conductivity can be reduced, the sensitivity of the ions to be measured can be improved, and the counter ions in the sample enter the waste liquid.

[0040] However, the inventor found during the design process that the elution bottle is used to store the eluent (also called the mobile phase), and it is the key to ion separation by an ion chromatograph. If the eluent runs out, the ion chromatograph cannot accurately detect the substance to be measured, resulting in inaccurate analysis data and seriously affecting the instrument at the same time, such as dry burning of the suppressor and empty running of the infusion pump.

[0041] In view of this, as Figures 1 - 6 shown, in a first aspect, the embodiment of this application provides a fixed detection device, including: a fixed structure 10, including a chassis 101 and a column 102, the column 102 is connected to the chassis 101 to enclose an accommodation cavity, and the accommodation cavity is configured to accommodate an elution bottle 40 loaded with an eluent; a detection structure 20, including a liquid level member 201 and a buzzer group 202, the buzzer group 202 is connected to the column 102, and the liquid level member 201 is connected to the buzzer group 202 to detect the liquid level of the eluent.

[0042] Exemplarily, the chassis 101 and the column 102 are fixed as a whole by a detachable connection method. The specific detachable connection method includes but is not limited to screws 50. That is, the column 102 is provided with a first connection hole 1025, and the chassis 101 is provided with a second connection hole 1012. The centers of the first connection hole 1025 and the second connection hole 1012 are located on the same axis. The screw 50 is used to connect the first connection hole 1025 and the second connection hole 1012 respectively. At the same time, to ensure the connection stability between the column 102 and the chassis 101, at least two first connection holes 1025 and second connection holes 1012 can be provided.

[0043] It can be understood that the column 102 can be connected above the chassis 101, and the chassis 101 is used to support the elution bottle 40. Of course, it is not excluded that the column 102 can also be connected to the outer edge of the chassis 101, etc., as long as the fixation of the elution bottle 40 can be achieved.

[0044] In this application, the liquid level member 201 includes but is not limited to a liquid level sensor. The buzzer group 202 includes a main board, a buzzer 2021, a terminal block 2022, an LED lamp 2023, and a USB connector 2024 (as Figure 5 shown). The buzzer 2021, the terminal block 2022, the LED lamp 2023, and the USB connector 2024 are all connected to the main board. The terminal block 2022 is used to connect to the liquid level member 201. The LED lamp 2023 is used to flash when the buzzer 2021 emits a sound. The USB connector 2024 is used to connect to a power source. For example, the USB connector 2024 is directly connected to a chromatograph, or it can work offline, directly connecting the USB connector 2024 to an external power source without connecting to an ion chromatograph.

[0045] It should be noted that when the USB connector 2024 is used to connect to the ion chromatograph, when the liquid level is higher than the detection position, an electrical signal is generated, the buzzer 2021 does not emit a sound, the LED lamp 2023 is always on, and the electrical signal is transmitted to the ion chromatograph through the USB connector 2024. At this time, the computer terminal shows that the eluent is normal. When the liquid level is lower than the detection position, no electrical signal is generated, the buzzer 2021 emits a sound, the LED lamp 2023 flashes, and at the same time, the ion chromatograph cannot receive the electrical signal. At this time, the computer terminal shows that the eluent is insufficient, reminding to replace the eluent in time.

[0046] When the USB connector 2024 is used to connect to an external power supply, when the liquid level is higher than the detection position, an electrical signal is generated, the buzzer 2021 does not emit sound, and the LED light 2023 is constantly on; when the liquid level is lower than the detection position, no electrical signal is generated, the buzzer 2021 emits sound, and the LED light 2023 flashes.

[0047] During the above implementation process, the accommodation cavity formed after the column 102 is connected to the chassis 101 can be used to wash the bottle 40. The chassis 101 can support the wash bottle 40. The buzzer group 202 is fixed to the column 102, and the liquid level member 201 is connected to the buzzer group 202 and corresponds to the wash bottle 40 to detect the liquid level of the wash bottle 40. When the liquid level member 201 detects that the liquid level of the washing liquid reaches the lower limit, it feeds back its signal to the buzzer group 202, and the buzzer group 202 emits sound to remind the user to replace the wash bottle 40 in time.

[0048] Such as Figures 2 - 3 As shown, an installation groove 1021 is arranged inside the column 102, and the installation groove 1021 is provided with an installation part, and the installation part is configured to install the buzzer group 202.

[0049] During the above implementation process, the buzzer group 202 is installed on the installation part, so that the installation part can accommodate the buzzer group 202 and the liquid level member 201, avoiding interference when the wash bottle 40 is placed in the accommodation cavity, realizing reasonable utilization of space, and at the same time facilitating the detection of the liquid level of the wash bottle 40.

[0050] In some embodiments, the installation part includes installation holes 1022, and a plurality of installation holes 1022 are arranged along the up and down direction. For example, three installation holes are arranged along the up and down direction to adjust the installation position of the buzzer group 202. It can be understood that the distance between two adjacent installation holes 1022 is not specifically limited and can be set according to actual application situations, which will not be elaborated here one by one.

[0051] During the above implementation process, the detection structure 20 is connected to the installation parts at different positions to adjust the position of the detection structure 20, so as to meet different height requirements, realize the detection of liquid levels at different heights, and improve the applicability of the product.

[0052] Such as Figures 1 - 2 As shown, a plurality of columns 102 are provided. For example, four columns 102 are provided. Of course, it is not excluded that the number of columns 102 is less than four or more than four. A plurality of columns 102 are spaced apart along the periphery of the chassis 101, and at least one of the plurality of columns 102 is provided with the installation groove 1021.

[0053] In the above implementation process, several columns 102 are distributed at intervals on the chassis 101. The columns 102 are processed separately from the chassis 101, which can not only avoid processing and manufacturing with integral materials and reduce cost input, but also realize the limit fixation of the flushing bottle 40. There is no obstruction in the interval between two adjacent columns 102, and the liquid level of the flushing bottle 40 can be directly observed, avoiding the situation where the liquid level cannot be observed due to a malfunction of the liquid level component 201.

[0054] In some embodiments, in the vertical direction, the cross-sectional dimension of the column 102 on the side away from the chassis 101 is smaller than the cross-sectional dimension of the column 102 on the side close to the chassis 101.

[0055] It should be noted that in the direction from top to bottom of the column 102, its cross-sectional dimension gradually increases, which can be understood as at least one of the following two situations; the first situation is that the dimension of the column 102 gradually increases in the direction from top to bottom, so that the distance between two adjacent columns 102 gradually decreases; the second situation is that the dimension of the column 102 gradually increases in the direction from top to bottom, so that the inner wall of the column 102 gradually approaches the flushing bottle 40 until the inner wall of the bottom of the column 102 fits the flushing bottle 40.

[0056] In the above implementation process, by setting the cross-sectional dimensions of the column 102 in the vertical direction to be inconsistent, the column 102 can form a certain taper, which plays a guiding role, making it more smooth and convenient to operate and position when placing the flushing bottle 40, and preventing the flushing bottle 40 from being placed obliquely and affecting the detection.

[0057] As Figure 3 shown, a wire passing hole 1023 is arranged on the side of the column 102 close to the chassis 101, and the wire passing hole 1023 is communicated with the installation groove 1021.

[0058] In the above implementation process, after the buzzer group 202 is fixedly installed on the column 102, its wire can pass through the wire passing hole 1023. The wire passing hole 1023 can play a role in fixing and guiding, achieving the effect of preventing the wire from shaking. At the same time, the wire is located above the chassis 101, which can prevent the flushing liquid from soaking the wire after spilling.

[0059] In some embodiments, the fixed detection device further includes a light guide column 30. The column 102 is configured with a fixing hole 1024, and the light guide column 30 is disposed in the fixing hole 1024. It can be understood that in order to ensure light conduction at different positions, a plurality of fixing holes 1024 may be spaced along the up and down directions. The number of the fixing holes 1024 includes but is not limited to three. During actual use, the light guide column 30 can be disposed in all three fixing holes 1024, or the light guide column 30 can be disposed in one of the fixing holes 1024, and the other two fixing holes 1024 are used for position adjustment of the light guide column 30.

[0060] During the above implementation process, the light guide column 30 is installed on the column 102, which can play a role in conducting light and facilitate the liquid level detection of the eluent by the liquid level member 201.

[0061] In some embodiments, the chassis 101 is configured with at least one. When a plurality of chassis 101 are configured, the outer edges of adjacent chassis 101 are mutually attached.

[0062] As Figure 4 and Figure 6 shown, the chassis 101 is configured with a trimming edge 1011, and the trimming edges 1011 of adjacent chassis 101 are mutually attached. For example, the chassis 101 is configured with four, and each chassis 101 is configured with three trimming edges 1011. The outer dimension of the chassis 101 can be reduced, which is convenient for placing multiple groups of fixed detection devices together for use, saving space, and at the same time, it is also convenient to hold the elution bottle 40 by hand.

[0063] In a second aspect, the present application further provides an ion chromatograph, including: the fixed detection device as described above.

[0064] Among them, the working process of the ion chromatograph is as follows: The infusion pump transports the mobile phase to the analysis system at a stable flow rate (or pressure). The sample is introduced through the injector before the chromatographic column. The mobile phase brings the sample into the chromatographic column. Each component is separated in the chromatographic column and flows to the conductivity detector in sequence with the mobile phase. For suppressed ion chromatography, an additional suppression system is added before the conductivity detector, that is, another high-pressure infusion pump transports the regeneration liquid to the suppressor. In the suppressor, the background conductivity of the mobile phase is reduced, and then the effluent is introduced into the conductivity detection cell, and the detected signal is sent to the data system for recording, processing, or storage.

[0065] Since the ion chromatograph provided in the second aspect includes the fixed detection device, the ion chromatograph has all the technical effects of the fixed detection device, which will not be elaborated here.

[0066] In all embodiments of the present application, "big", "small", "many", "few", "up" and "down" are relative terms. For the expression of such relative terms, the embodiments of the present application will not elaborate further.

[0067] It should be understood that the phrases "in this embodiment", "in the embodiments of the present application" or "as an optional implementation manner" mentioned throughout the specification mean that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the phrases "in this embodiment", "in the embodiments of the present application" or "as an optional implementation manner" that appear throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. Those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily essential to the present application.

[0068] In various embodiments of the present application, it should be understood that the magnitudes of the sequence numbers of the above processes do not necessarily mean the inevitable sequence of execution. The execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0069] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A fixed detection device, characterized in that: include: A fixed structure, comprising a base and a column, wherein the column is connected to the base to enclose a receiving cavity, and the receiving cavity is configured to receive a washing bottle loaded with washing liquid; The detection structure comprises a liquid level component and a buzzer group, wherein the buzzer group is connected to the column, and the liquid level component is connected to the buzzer group to detect the liquid level of the eluent.

2. The fixed detection device according to claim 1, characterized in that: The inner side of the column is provided with a mounting groove, the mounting groove is provided with a mounting portion, and the mounting portion is configured to be used for mounting the buzzer group.

3. The fixed detection device according to claim 2, characterized in that: The mounting portion includes a mounting hole, wherein a plurality of the mounting holes are arranged in the up-down direction for adjusting the mounting position of the buzzer group.

4. The fixed detection device according to claim 3, characterized in that: There are a plurality of the columns, which are spaced apart and distributed along the periphery of the chassis, and at least one of the columns is provided with the mounting groove.

5. The fixed detection device according to any one of claims 2 to 4, characterized in that: In the up-down direction, the cross-sectional dimension of the side of the column away from the chassis is smaller than the cross-sectional dimension of the side of the column close to the chassis.

6. The fixed detection device according to claim 5, characterized in that: A wire-passing hole is disposed on a side of the column close to the chassis, and the wire-passing hole is in conduction with the mounting groove.

7. The fixed detection device according to claim 5, characterized in that: The fixed detection device further comprises a light guide column, the column is provided with a fixing hole, and the light guide column is arranged in the fixing hole.

8. The fixed detection device according to claim 5, characterized in that: The chassis is provided with at least one, and when the chassis is provided with a plurality of chassis, outer edges of two adjacent chassis are fitted to each other.

9. The fixed detection device according to claim 8, characterized in that: The chassis is provided with a cut edge, and the cut edges of two adjacent chassis are fitted to each other.

10. An ion chromatograph, characterized in that: include: A fixed detection device as claimed in any one of claims 1 to 9.

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