Waste liquid collecting device of liquid chromatographic analyzer

Abstract

The utility model discloses a waste liquid collecting device of a liquid chromatographic analyzer, which comprises a mounting component, a liquid collecting component and a liquid collecting component, the waste liquid pipe is detachably connected with the mounting piece, and the waste liquid pipe is provided with a plurality of waste liquid connectors; the waste liquid pipe is provided with a first end and a second end which are opposite, the first end is higher than the second end, and the first end is a closed end; the waste liquid container comprises a liquid inlet and an exhaust port, the second end of the waste liquid pipe is communicated with the liquid inlet in a sealed mode, and a filter is installed at the exhaust port and used for filtering organic solvent volatile matter. Due to the fact that the waste liquid pipe can be installed on the experiment table through the installation piece and the waste liquid pipe is provided with the multiple waste liquid connectors, the waste liquid collection device can be in butt joint with multiple liquid chromatographic analyzers, and unified collection of waste liquid of the multiple liquid chromatographic analyzers is achieved. The waste liquid collecting device greatly reduces the occupied space, and does not influence normal operation of an experimenter on an instrument.

Description

Technical Field

[0001] The utility model relates to the technical field of biopharmaceutical waste recovery, in particular to a waste liquid collecting device of a liquid chromatograph analyzer. Background Art

[0002] In the biopharmaceutical field, liquid chromatography analyzer is a common analytical testing instrument, and most companies have a large number of instruments and use them frequently, which will generate a large amount of waste liquid.

[0003] At present, the waste liquid collection device is mostly a waste liquid bucket placed under each liquid chromatography instrument. When the number of instruments is large, the waste liquid buckets are also large, and the waste liquid buckets are heavy, which makes daily maintenance and cleaning inconvenient. The waste liquid buckets are mostly placed under the laboratory table, taking up space and affecting the normal operation of the instrument by the experimenter. Utility Model Content

[0004] The waste liquid collecting device of the liquid chromatograph analyzer provided by the utility model is used to solve the problem of large occupied space caused by the need to set up multiple waste liquid containers for multiple liquid chromatograph analyzers.

[0005] In one embodiment, a waste liquid collection device for a liquid chromatograph is provided, comprising:

[0006] A mounting assembly, comprising a plurality of mounting parts, wherein the mounting parts are used to be detachably mounted on a laboratory table on which the liquid chromatograph is placed;

[0007] a waste liquid pipe, detachably connected to the mounting member, the waste liquid pipe being provided with a plurality of waste liquid interfaces, the waste liquid interfaces being provided with detachable interface covers, the waste liquid interfaces being used to connect to a sewage pipe of the liquid chromatograph; the waste liquid pipe having a first end and a second end opposite to each other, the first end being higher than the second end, and the first end being a closed end; and

[0008] The waste liquid container comprises a liquid inlet and an exhaust port, the second end of the waste liquid pipe is sealed and connected with the liquid inlet, and the exhaust port is equipped with a filter for filtering volatile organic solvents.

[0009] In one embodiment, the waste liquid interface protrudes from the circumferential upper end of the waste liquid pipe.

[0010] In one embodiment, the mounting assembly includes a first mounting member and a second mounting member, the first end of the waste liquid pipe or a position close to the first end is mounted on the first mounting member, and the second end of the waste liquid pipe or a position close to the second end is mounted on the second mounting member.

[0011] In one embodiment, the first mounting member and the second mounting member have a plurality of mounting positions arranged along the vertical direction, the first end of the waste liquid pipe or a position close to the first end is installed at the mounting position at the upper end of the first mounting member, and the second end of the waste liquid pipe or a position close to the second end is installed at the mounting position at the lower end of the second mounting member.

[0012] In one embodiment, the first mounting member and the second mounting member both include a fixing portion and a locking portion, the fixing portion is used to be installed on the laboratory table, and the locking portion is used to lock the waste liquid pipe at different height positions of the fixing portion; the locking portion of the first mounting member is used to install the first end of the waste liquid pipe or a position close to the first end on the upper end of the first mounting member, and the locking portion of the second mounting member is used to install the second end of the waste liquid pipe or a position close to the second end on the lower end of the second mounting member.

[0013] In one embodiment, the waste liquid pipe includes a hard pipe and a soft pipe, the hard pipe is provided with a plurality of the waste liquid interfaces, the hard pipe is obliquely installed on the laboratory table through a plurality of the mounting parts, and the hard pipe is connected to the liquid inlet of the waste liquid container through the soft pipe.

[0014] In one embodiment, the hard tube includes a plurality of unit tubes, each of which is provided with the waste liquid interface, and the unit tubes can be detachably connected to each other.

[0015] In one embodiment, the waste liquid interface is further provided with a sleeve, and the sleeve is used to fit and seal the connection between the waste liquid interface and the sewage pipe.

[0016] In one embodiment, a first sealing portion and a second sealing portion are provided on the inner side surface of the sleeve, the first sealing portion is sealed and connected to the waste liquid interface, and the second sealing portion is sealed and connected to the sewage pipe.

[0017] In one embodiment, the waste liquid pipe is a polytetrafluoroethylene tube.

[0018] According to the waste liquid collection device of the liquid chromatograph analyzer of the above-mentioned embodiment, since the waste liquid pipe can be installed on the laboratory table through the mounting part, and the waste liquid pipe is provided with multiple waste liquid interfaces, the waste liquid collection device can be connected to multiple liquid chromatograph analyzers to realize the unified collection of waste liquids of multiple liquid chromatograph analyzers. Compared with the existing liquid chromatograph analyzer with one waste liquid barrel, the waste liquid collection device greatly reduces the occupied space and does not affect the normal operation of the instrument by the experimenter; and the waste liquid interface is provided with a detachable interface cover, so that the waste liquid collection device can be adapted to any number of liquid chromatograph analyzers within a range of quantities, and can prevent the waste liquid from directly volatilizing from the waste liquid interface that is not connected to the liquid chromatograph analyzer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a waste liquid collection device of a liquid chromatograph in an embodiment;

[0020] Figure 2 A schematic diagram of the structure of a waste liquid collection device of a liquid chromatograph in an embodiment;

[0021] Figure 3 A schematic diagram of the structure of a waste liquid collection device of a liquid chromatograph in an embodiment;

[0022] Figure 4 A schematic diagram of the structure of an installation assembly of a waste liquid collection device in an embodiment;

[0023] Figure 5 A schematic diagram of the structure of an installation assembly of a waste liquid collection device in an embodiment;

[0024] Figure 6 A schematic diagram of the structure of an installation assembly of a waste liquid collection device in an embodiment;

[0025] Figure 7 A schematic diagram of the structure of a waste liquid collection device of a liquid chromatograph in an embodiment;

[0026] Figure 8 A schematic diagram of the structure of a waste liquid collection device of a liquid chromatograph in an embodiment;

[0027] The accompanying drawings are described as follows:

[0028] 1-installation assembly, 11-first installation member, 12-second installation member, 111-installation position, 1a-first part, 1b-second part, 1c-fixing part, 1d-locking part;

[0029] 2-waste liquid pipe, 21-waste liquid interface, 22-interface cover, 23-casing, 2a-hard tube, 2b-soft tube, 2c-unit tube;

[0030] 3-waste container, 31-filter;

[0031] 4-liquid chromatograph, 41-drain pipe;

[0032] 5-Laboratory table. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0034] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0035] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0036] In one embodiment, a waste liquid collection device for a liquid chromatograph is provided. The waste liquid collection device is used to be installed on one side of a laboratory table and can be connected to multiple liquid chromatographs at the same time to realize waste liquid collection of multiple liquid chromatographs. The waste liquid collection device can replace multiple waste liquid barrels, simplify the structure, and reduce the occupied space; and the waste liquid collection device can be adapted to connect any number of liquid chromatographs within the design range, and the number of dockings can be flexibly adjusted to meet the waste liquid collection of different numbers of liquid chromatographs in different scenarios.

[0037] In this embodiment, the waste liquid of the liquid chromatograph contains components such as acid, alkalinity and organic solvents. The waste liquid collection device can also achieve a sealed connection with multiple liquid chromatographs to avoid overflow and volatilization of the waste liquid and ensure the safety of the laboratory.

[0038] Please refer to Figure 1 and Figure 2In this embodiment, the waste liquid collection device of the liquid chromatograph mainly includes a mounting assembly 1, a waste liquid pipe 2 and a waste liquid container 3. The waste liquid container 3 can be connected to multiple liquid chromatographs 4 through the waste liquid pipe 2. The mounting assembly 1 is used to fix the waste liquid pipe 2 on the laboratory table 5, and the waste liquid container 3 can be directly placed on the ground and located on one side or the back of the laboratory table 5.

[0039] The mounting assembly 1 may include a plurality of mounting parts, which are used to be detachably mounted on a laboratory table 5 on which the liquid chromatograph 4 is placed. The number of mounting parts may be set as required, for example, the mounting assembly 1 includes a first mounting part 11 and a second mounting part 12, which are detachably mounted on the back of the laboratory table 5.

[0040] The first mounting member 11 and the second mounting member 12 may be mounting structures such as buckles, and the first mounting member 11 and the second mounting member 12 may be detachably connected to the experimental table 5 by buckles, screw connections, etc. Of course, the first mounting member 11 and the second mounting member 12 may also be fixedly connected to the experimental table 5.

[0041] The laboratory table 5 may have a left side and a right side opposite to each other. The first mounting member 11 may be mounted on the rear side of the left side of the laboratory table 5 , and the second mounting member 12 may be mounted on the rear side of the right side of the laboratory table 5 .

[0042] The waste liquid pipe 2 is detachably connected to the first mounting member 11 and the second mounting member 12. The waste liquid pipe 2 is obliquely mounted behind the experimental table 5. The waste liquid pipe 2 has a first end and a second end opposite to each other. The first end of the waste liquid pipe 2 is a closed end, and the second end of the waste liquid pipe 2 is an open end. The first end of the waste liquid pipe 2 is set as a closed end to prevent the waste liquid from overflowing and volatilizing.

[0043] The first end of the waste liquid pipe 2 is detachably connected to the first mounting member 11, and the position of the waste liquid pipe 2 near the second end is detachably connected to the second mounting member 12. The position of the waste liquid pipe 2 near the first end can also be detachably connected to the first mounting member 11, and the fixed installation of the waste liquid pipe 2 can also be achieved.

[0044] In this embodiment, the first mounting member 11 and the second mounting member 12 can install the waste liquid pipe 2 at different heights, and the heights can be adjusted according to the use requirements. The first mounting member 11 installs the first end of the waste liquid pipe 2 at a relatively higher height, and the second mounting member 12 installs the second end of the waste liquid pipe 2 at a relatively lower height.

[0045] The installation height position of the first end of the waste liquid pipe 2 is higher than the installation height position of the second end of the waste liquid pipe 2, so that the waste liquid in the waste liquid pipe 2 can flow to the first end according to its own gravity, and finally flow into the waste liquid container 3. The inclined waste liquid pipe 2 is conducive to the collection of waste liquid and can prevent waste liquid from remaining in the waste liquid pipe 2.

[0046] A plurality of waste liquid interfaces 21 are provided at the circumferential end of the waste liquid pipe 2. The plurality of waste liquid interfaces 21 are arranged at intervals. The waste liquid interfaces 21 protrude from the circumferential end of the waste liquid pipe 2. The waste liquid interfaces 21 are connected to the waste liquid pipe 2. The waste liquid interfaces 21 are used to connect to the drain pipe 41 of the liquid chromatograph analyzer 4.

[0047] The waste liquid interface 21 can be an integrated structure with the waste liquid pipe 2, or it can be a metal component. The waste liquid interface 21 is fixedly connected to the waste liquid pipe 2, and a sealed connection is achieved between the waste liquid interface 21 and the waste liquid pipe 2 by means of adhesive or the like.

[0048] The waste liquid interface 21 may be provided with an interface cover 22, and the waste liquid interface 21 and the interface cover 22 are detachably connected, for example, the waste liquid interface 21 and the interface cover 22 are threadedly connected. When the waste liquid interface 21 needs to be connected to the sewage pipe 41 of the liquid chromatograph 4, the interface cover 22 is opened; when the waste liquid interface 21 does not need to be connected to the sewage pipe 41 of the liquid chromatograph 4, the interface cover 22 is covered to seal the waste liquid interface 21, so as to prevent the unused waste liquid interface 21 from leaking and volatile waste liquid gas when other waste liquid interfaces 21 are in use.

[0049] In other embodiments, the interface cover 22 and the waste liquid interface 21 may be provided with a connecting rope or a connecting line, so that after the interface cover 22 is opened, the interface cover 22 and the waste liquid interface 21 are still connected together, which can prevent the interface cover 22 from being lost.

[0050] In this embodiment, the waste liquid container 3 can be a container structure such as a waste liquid barrel, and the upper end of the waste liquid container 3 can be provided with a liquid inlet and an exhaust port. The liquid inlet of the waste liquid container 3 is sealed and connected to the second end of the waste liquid pipe 2, and the second end of the waste liquid pipe 2 is connected to the liquid inlet of the waste liquid container 3, and the connection is sealed. The waste liquid container 3 is used to store the collected waste liquid, and the liquid inlet of the waste liquid container 3 is installed with a filter 31. The filter 31 is an organic volatile filter. The filter 31 is used to exhaust the air discharged from the waste liquid collected in the waste liquid container 3. The filter 31 can also filter the organic volatiles volatilized by the waste liquid in the exhaust gas to prevent the organic volatiles from contaminating the laboratory.

[0051] Among them, the liquid inlet of the waste liquid container 3 and the second end of the waste liquid pipe 2 can be detachably connected by means of threaded connection, so that when the liquid inlet of the waste liquid container 3 is connected to the second end of the waste liquid pipe 2, it can be used to collect fees, and when the liquid inlet of the waste liquid container 3 is separated from the second end of the waste liquid pipe 2, the liquid inlet of the waste liquid container 3 can be used as a discharge port to discharge waste liquid.

[0052] In other embodiments, the waste liquid container 3 may also be provided with a liquid discharge port at the bottom or at a side surface close to the bottom, and a cover body may be installed at the liquid discharge port to seal the liquid discharge port.

[0053] In this embodiment, the waste liquid pipe 2 is a polytetrafluoroethylene tube. Polytetrafluoroethylene (PTEF) is a material that is resistant to acids, alkalis, and organic solvents. Polytetrafluoroethylene is almost insoluble in all solvents, so that the waste liquid pipe 2 is not easily corroded by the waste liquid of the liquid chromatograph 4.

[0054] The waste liquid container 3 may also be made of polytetrafluoroethylene material, so that the waste liquid container 3 is also resistant to acid, alkali and organic solvents, and the waste liquid container 3 is not easily corroded by the waste liquid of the liquid chromatograph 4 .

[0055] In other embodiments, the waste liquid pipe 2 and the waste liquid container 3 may be made of other materials that are resistant to acids, alkalis, and organic solvents. For example, the waste liquid pipe 2 and the waste liquid container 3 may be made of polyetheretherketone (PEEK) or the like.

[0056] The waste liquid collection device of the liquid chromatograph in this embodiment can be installed on the laboratory table 5 through the installation part, and the waste liquid pipe 2 is provided with multiple waste liquid interfaces 21, so that the waste liquid collection device can be connected to multiple liquid chromatographs to realize the unified collection of waste liquids of multiple liquid chromatographs. Compared with the existing liquid chromatograph that has one waste liquid bucket, the waste liquid collection device greatly reduces the occupied space and does not affect the normal operation of the instrument by the experimenter; and the waste liquid interface 21 is provided with a detachable interface cover 22, so that the waste liquid collection device can be adapted to any number of liquid chromatographs within a range of quantities, and can prevent the waste liquid from directly volatilizing from the waste liquid interface 21 that is not connected to the liquid chromatograph.

[0057] Please refer to Figure 3 In one embodiment, the waste liquid interface 21 is also provided with a sleeve 23, which is used to seal the connection between the waste liquid interface 21 and the drain pipe 41 of the liquid chromatograph 4 to prevent the waste liquid from overflowing from the connection between the waste liquid interface 21 and the drain pipe 41 of the liquid chromatograph 4.

[0058] The sleeve 23 can be a binding tube with a certain elasticity. The sleeve 23 wraps the connection between the waste liquid interface 21 and the drain pipe 41 of the liquid chromatograph 4 through its own elastic binding ability, thereby sealing the connection between the waste liquid interface 21 and the drain pipe 41 of the liquid chromatograph 4.

[0059] In other embodiments, the inner side of the sleeve 23 is provided with a first sealing portion and a second sealing portion, the first sealing portion of the sleeve 23 is sealed and connected to the waste liquid interface 21, and the second sealing portion of the sleeve 23 is sealed and connected to the drain pipe 41 of the liquid chromatograph 4. The first sealing portion and the second sealing portion can be elastic sealing rings, and the inner side of the sleeve 23, the circumferential outer side of the waste liquid interface 21 and the circumferential outer side of the drain pipe 41 are respectively provided with annular grooves for installing the elastic sealing rings, and the elastic sealing rings are squeezed and clamped in the annular grooves to achieve a sealed connection between the sleeve 23 and the waste liquid interface 21 and the drain pipe 41. Among them, the elastic sealing ring can also be made of acid-resistant, alkali-resistant, and organic solvent-resistant materials.

[0060] In other embodiments, the waste liquid interface 21 is connected to the sewage pipe 41 by plugging, and a sealing structure is provided at the overlapping connection between the waste liquid interface 21 and the sewage pipe 41, so as to realize the connection and sealing between the waste liquid interface 21 and the sewage pipe 41.

[0061] Please refer to Figure 4 In one embodiment, the first mounting member 11 and the second mounting member 12 are an integrated structure. The first mounting member 11 and the second mounting member 12 include a plurality of mounting positions 111 arranged along the vertical direction. The plurality of mounting positions 111 can be a through-hole structure. The waste liquid pipe 2 is inserted into the through-holes of the mounting positions 111 at different heights, so that different installation heights of the waste liquid pipe 2 can be achieved.

[0062] For example, the first mounting member 11 and the second mounting member 12 include three mounting positions 111 at the upper, middle and lower ends. The first end of the waste liquid pipe 2 is inserted into the mounting position 111 at the upper end of the first mounting member 11, and the position of the waste liquid pipe 2 close to the second end is inserted into the mounting position 111 at the lower end of the second mounting member 12. By installing the two ends of the waste liquid pipe 2 in the mounting positions 111 at different heights, the waste liquid pipe 2 can be installed obliquely.

[0063] In other embodiments, the first mounting member 11 and the second mounting member 12 may also include two components, the two components enclosing a plurality of mounting positions 111, and the waste liquid pipe 2 may also be installed and removed from the first mounting member 11 and the second mounting member 12 by disassembling the two components.

[0064] Please refer to Figure 5 In one embodiment, the first mounting member 11 and the second mounting member 12 include a first part 1a and a second part 1b. The first part 1a is a mounting frame structure. The first part 1a is used to be fixedly mounted on the back of the laboratory table 5. The second part 1b can be lifted and moved relative to the first part. The second part 1b is provided with a mounting position 111. The first part 1a can be provided with a plurality of mounting holes in a plurality of vertical directions, and the second part 1b is provided with hooks corresponding to the mounting holes. The second part 1b can be installed at mounting holes at different heights to achieve adjustment at different height positions.

[0065] The lifting and moving adjustment of the second part 1b relative to the first part 1a can adjust the height position of the installation position 111, and further adjust the installation height position of the waste liquid pipe 2. Specifically, the second part 1b of the first mounting member 11 can be installed in the mounting hole at the upper end of the first part 1a, so that the installation position 111 of the second part 1b of the first mounting member 11 is located at a relatively higher installation position, and the second part 1b of the second mounting member 12 can be installed in the mounting hole at the lower end of the first part 1a, so that the installation position 111 of the second part 1b of the second mounting member 12 is located at a relatively lower installation position, so as to realize the inclined installation of the waste liquid pipe 2.

[0066] Please refer to Figure 6 In one embodiment, the first mounting member 11 and the second mounting member 12 may include a fixing portion 1c and a locking portion 1d. The fixing portion 1c is used to be fixedly installed on the back of the laboratory table 5. The locking portion 1d can be detachably connected to the fixing portion 1c by means of screw connection, clamping, etc. The fixing portion 1c and the locking portion 1d form a clamping structure, which can be used to clamp and fix the waste liquid pipe 2, and the clamping area between the fixing portion 1c and the locking portion 1d is arranged along the vertical position, so that the waste liquid pipe 2 is located at clamping positions of different heights, and installation at different height positions can be achieved.

[0067] Specifically, the first end of the waste liquid pipe 2 is installed at a relatively higher position in the clamping area between the fixing portion 1c and the locking portion 1d, and the position of the waste liquid pipe 2 close to the second end is installed at a relatively lower position in the clamping area between the fixing portion 1c and the locking portion 1d. In this way, the first end of the waste liquid pipe 2 is also higher than the second end, and the inclined installation of the waste liquid pipe 2 can also be achieved.

[0068] Please refer to Figure 7 In one embodiment, the waste liquid pipe 2 may include a hard pipe 2a and a soft pipe 2b. The hard pipe 2a is installed obliquely on the back of the experimental table 5. The soft pipe 2b connects the hard pipe 2a and the waste liquid container 3. The hard pipe 2a is provided with a plurality of waste liquid interfaces 21. The hard pipe 2a is connected to the waste liquid container 3 through the soft pipe 2b. Among them, the inclination of the waste liquid pipe 2 and the part for collecting waste liquid adopt the hard pipe 2a. The hard pipe 2a has a more stable structure, so that the oblique installation can be realized through two mounting parts, and the bending of the waste liquid pipe 2 between the mounting parts can be avoided. The part where the waste liquid pipe 2 is connected to the waste liquid container 3 adopts the soft pipe 2b. The soft pipe 2b has a certain bending and deformation ability, can adapt to the waste liquid containers 3 at different positions, and can be bent to connect the liquid inlet of the waste liquid containers 3 at different positions.

[0069] The hard tube 2a and the soft tube 2b can be sealed and connected by structures such as glue and elastic sealing rings.

[0070] Please refer to Figure 8In one embodiment, the hard tube 2a may include a plurality of detachably connected unit tubes 2c, each unit tube 2c being provided with at least one waste liquid interface 21, and both ends of the unit tube 2c being provided with complementary connection structures, so that the plurality of unit tubes 2c can be connected in series end to end in sequence. A special unit tube 2c may be provided, one end of which has an opening and the other end is a closed end, and the special unit tube 2c may be provided at an end away from the waste liquid container 3, that is, the special unit tube 2c may form the first end (closed end) of the waste liquid tube 2. Alternatively, the hard tube 2a may further include an end cap, which is used to be installed and fixed at an end away from the waste liquid container 3, that is, the end cap is installed at the end forming the first end of the waste liquid tube 2, and the sealing of the first end of the waste liquid tube 2 may also be achieved.

[0071] The hard tube 2a is configured as a plurality of detachably connected unit tubes 2c, and a corresponding number of unit tubes 2c can be selected for splicing according to the liquid chromatograph 4, so that the waste liquid tube 2 has better compatibility and can avoid the waste liquid tube 2 being too long or too short.

[0072] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. A waste liquid collection device for a liquid chromatograph, characterized in that: include: A mounting assembly, comprising a plurality of mounting parts, wherein the mounting parts are used to be detachably mounted on a laboratory table on which the liquid chromatograph is placed; a waste liquid pipe, detachably connected to the mounting member, the waste liquid pipe being provided with a plurality of waste liquid interfaces, the waste liquid interfaces being provided with detachable interface covers, the waste liquid interfaces being used to connect to a sewage pipe of the liquid chromatograph; the waste liquid pipe having a first end and a second end opposite to each other, the first end being higher than the second end, and the first end being a closed end; and The waste liquid container comprises a liquid inlet and an exhaust port, the second end of the waste liquid pipe is sealed and connected with the liquid inlet, and the exhaust port is equipped with a filter for filtering volatile organic solvents.

2. The waste liquid collection device according to claim 1, characterized in that: The waste liquid interface protrudes from the circumferential upper end of the waste liquid pipe.

3. The waste liquid collection device according to claim 1, characterized in that: The mounting assembly includes a first mounting member and a second mounting member. The first end of the waste liquid pipe or a position close to the first end is mounted on the first mounting member, and the second end of the waste liquid pipe or a position close to the second end is mounted on the second mounting member.

4. The waste liquid collection device according to claim 3, characterized in that: The first mounting member and the second mounting member have a plurality of mounting positions arranged in a vertical direction, the first end of the waste liquid pipe or a position close to the first end is mounted on the mounting position at the upper end of the first mounting member, and the second end of the waste liquid pipe or a position close to the second end is mounted on the mounting position at the lower end of the second mounting member.

5. The waste liquid collection device according to claim 3, characterized in that: The first mounting member and the second mounting member each include a fixing portion and a locking portion, the fixing portion being used to be installed on the laboratory table, and the locking portion being used to lock the waste liquid pipe at different height positions of the fixing portion; the locking portion of the first mounting member is used to install the first end of the waste liquid pipe or a position close to the first end on the upper end of the first mounting member, and the locking portion of the second mounting member is used to install the second end of the waste liquid pipe or a position close to the second end on the lower end of the second mounting member.

6. The waste liquid collection device according to claim 1, characterized in that: The waste liquid pipe includes a hard pipe and a soft pipe. The hard pipe is provided with a plurality of waste liquid interfaces. The hard pipe is obliquely installed on the laboratory table through a plurality of mounting parts. The hard pipe is connected to the liquid inlet of the waste liquid container through the soft pipe.

7. The waste liquid collection device according to claim 6, characterized in that: The hard tube includes a plurality of unit tubes, each of which is provided with the waste liquid interface, and the unit tubes can be detachably connected to each other.

8. The waste liquid collection device according to claim 1, characterized in that: The waste liquid interface is also provided with a sleeve, and the sleeve is used to fit and seal the connection between the waste liquid interface and the sewage pipe.

9. The waste liquid collection device according to claim 8, characterized in that: The inner side surface of the sleeve is provided with a first sealing portion and a second sealing portion, the first sealing portion is sealed and connected to the waste liquid interface, and the second sealing portion is sealed and connected to the sewage pipe.

10. The waste liquid collection device according to any one of claims 1 to 9, characterized in that: The waste liquid pipe is a polytetrafluoroethylene tube.

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