Multifunctional sampling device

Abstract

The utility model discloses a multifunctional sampling device which comprises a rack, a liquid tray and a quick release assembly, the rack is provided with a detection analyzer and a manipulator, the rack is provided with a cross beam, and the cross beam is provided with a sample preparation tray, a headspace heater and a solid-phase microextraction instrument; two connecting arms are arranged at one end of the liquid tray, and a mounting part is transversely arranged at the upper end of each connecting arm; the quick-release assembly comprises at least two inserting and pulling blocks, the inserting and pulling blocks are installed on the cross beam, inserting grooves are transversely formed in the inserting and pulling blocks, each inserting groove is provided with an upper groove wall, a lower groove wall, a left groove wall and a right groove wall, avoiding gaps are formed between the lower groove walls and the left groove walls, avoiding gaps are formed between the lower groove walls and the right groove walls, and the two installation parts are inserted into the two inserting grooves in a one-to-one correspondence mode. And the connecting arms pass through the corresponding avoiding gaps. According to the multifunctional sampling device provided by the utility model, the liquid tray can be conveniently disassembled and assembled, so that the liquid tray can be conveniently disassembled and assembled for cleaning in the later period.

Description

Technical Field

[0001] This utility model relates to the field of detection and analysis equipment technology, and in particular to a multifunctional sample injection device. Background Technology

[0002] Multifunctional sample introduction devices typically integrate components such as a robotic arm, liquid tray, sample tray, headspace heater, solid-phase microextraction (SPME) system, and analytical instrument. During operation, the robotic arm uses a syringe to draw liquid samples from the liquid tray and delivers them to the analytical instrument for analysis. Alternatively, the robotic arm uses a syringe to draw samples from the sample tray, processes them in the headspace heater or SPME system, and then delivers the samples to the analytical instrument for analysis. In existing technologies, multifunctional sample introduction devices typically have a crossbeam, and the liquid tray usually has two connecting arms. Each connecting arm has a horizontal mounting part at its upper end, with the two mounting parts facing each other and fixed to the crossbeam by bolts. This installation method makes it inconvenient to disassemble and assemble the liquid tray, hindering subsequent cleaning. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a multifunctional sample injection device that facilitates the assembly and disassembly of a liquid tray, making it easier to clean the liquid tray later.

[0004] The multifunctional sample introduction device according to an embodiment of the present invention includes a frame, a liquid tray, and a quick-release assembly. The frame is equipped with a detection analyzer and a robotic arm. The frame is provided with a crossbeam, on which a sample tray, a headspace heater, and a solid-phase microextraction instrument are mounted. One end of the liquid tray is provided with two connecting arms, each of which has a horizontally arranged mounting part at its upper end. The quick-release assembly includes at least two plug-in blocks, which are installed on the crossbeam. Each plug-in block has a horizontally opened slot, which has an upper slot wall, a lower slot wall, a left slot wall, and a right slot wall. There are clearance gaps between the lower slot wall and the left slot wall, and between the lower slot wall and the right slot wall. The two mounting parts are inserted into the two slots one-to-one, and the connecting arms pass through the corresponding clearance gaps.

[0005] The multifunctional injection device according to the embodiments of the present utility model has at least the following beneficial effects: the slot of the plug-in block can be used for the mounting part on the connecting arm of the liquid tray to be inserted in the horizontal direction, and the clearance on the plug-in block can avoid the connecting arm. Thus, by adding the above two plug-in blocks to the crossbeam, the liquid tray can be quickly inserted using the two plug-in blocks, and the liquid tray can also be quickly removed from the plug-in blocks, thereby facilitating the disassembly and assembly of the liquid tray and making it convenient for the later disassembly and assembly of the liquid tray for cleaning.

[0006] According to some embodiments of the present invention, a limiting protrusion is provided on the upper side of the lower groove wall, and the limiting protrusion is used to increase the resistance of the mounting part from disengaging from the slot.

[0007] According to some embodiments of this utility model, the lower side of the lower groove wall is provided with reinforcing ribs.

[0008] According to some embodiments of the present invention, the upper groove wall is provided with an installation hole, a bolt is installed in the installation hole, the upper groove wall is fixed to the crossbeam by the bolt, and the lower groove wall is provided with a clearance hole for avoiding the bolt.

[0009] According to some embodiments of the present invention, an adjustment structure is provided between the crossbeam and the plug-in block, the adjustment structure being used to slide and adjust the position of the plug-in block along the length direction of the crossbeam.

[0010] According to some embodiments of the present invention, the adjustment structure includes two guide support columns and two sliding grooves disposed on the plug-in block. The length direction of the guide support columns is along the length direction of the crossbeam. The two guide support columns are arranged horizontally side by side, and the two guide support columns are correspondingly inserted into the two sliding grooves.

[0011] According to some embodiments of the present invention, the plug-in block includes a sliding part, the middle part of which is connected to the upper groove wall. The upper groove wall and the sliding part enclose the opposite ends of the crossbeam in the width direction to form two sliding grooves. The dimension of the sliding part in the extension direction of the sliding groove is smaller than the interval between the two guide support columns.

[0012] According to some embodiments of the present invention, a placement rack is installed on the crossbeam, and a sample injection needle is placed on the placement rack.

[0013] According to some embodiments of the present invention, a cleaning assembly is installed on the crossbeam, and the cleaning assembly is used to clean the injection needle.

[0014] According to some embodiments of the present invention, the sample tray also has the connecting arm and the mounting part, and the crossbeam is detachably mounted on the sample tray via two plug-in blocks.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the multifunctional sample introduction device of this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of a beam-mounted liquid tray in one embodiment of the multifunctional injection device is shown.

[0019] Figure 3 for Figure 1 An exploded view showing the liquid tray and quick-release assembly of the multi-functional sample dispenser;

[0020] Figure 4 for Figure 1 A schematic diagram of a beam-mounted liquid tray in another embodiment of the multi-functional injection device is shown.

[0021] Figure 5 for Figure 4 Sectional view on section AA;

[0022] Figure 6 for Figure 4 An exploded view of the liquid tray and quick-release assembly of the multi-functional sample introduction device is shown.

[0023] Figure label:

[0024] Frame 100, crossbeam 110, placement rack 120, liquid tray 200a, sample tray 200b, connecting arm 210, mounting part 220, plug-in block 310, upper tank wall 310a, lower tank wall 310b, left tank wall 310c, right tank wall 310d, sliding part 310e, slot 311, mounting hole 312, limiting protrusion 313, clearance gap 314, reinforcing rib 315, clearance hole 316, sliding groove 317, guide support column 320, detection and analysis instrument 400, robot arm 500, headspace heater 600, solid phase microextraction instrument 700, injection needle 800, cleaning assembly 900. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] In the specific implementation process, the detection analyzer 400 is located below the liquid tray 200a and the sample tray 200b. Therefore, removing the liquid tray 200a before cleaning it can prevent the cleaning fluid from contaminating the detection analyzer 400 during the cleaning process.

[0030] Reference Figures 1 to 3 According to an embodiment of the present invention, a multifunctional sample introduction device includes a frame 100, a liquid tray 200a, and a quick-release assembly. The frame 100 is equipped with a detection and analysis instrument 400 and a robotic arm 500. A crossbeam 110 is provided on the frame 100, on which a sample tray 200b, a headspace heater 600, and a solid-phase microextraction instrument 700 are mounted. Two connecting arms 210 are provided at one end of the liquid tray 200a, and each connecting arm 210 has a horizontally arranged mounting portion 220 at its upper end. The quick-release assembly includes at least two... A plug-in block 310 is installed on the crossbeam 110. The plug-in block 310 has a slot 311 opened laterally. The slot 311 has an upper slot wall 310a, a lower slot wall 310b, a left slot wall 310c, and a right slot wall 310d. There are clearance gaps 314 between the lower slot wall 310b and the left slot wall 310c, and between the lower slot wall 310b and the right slot wall 310d. Two mounting parts 220 are inserted into the two slots 311 one by one, and the connecting arm 210 passes through the corresponding clearance gap 314.

[0031] The slot 311 of the plug-in block 310 can be used for the mounting part 220 on the connecting arm 210 of the liquid tray 200a to be inserted horizontally, while the clearance 314 on the plug-in block 310 can avoid the connecting arm 210. Thus, by adding the above two plug-in blocks 310 to the crossbeam 110, the liquid tray 200a can be quickly inserted and inserted using the two plug-in blocks 310, and the liquid tray 200a can also be quickly removed from the plug-in blocks 310, thereby facilitating the disassembly and assembly of the liquid tray 200a and making it convenient for the later disassembly and assembly of the liquid tray 200a for cleaning.

[0032] In existing liquid trays 200a, the two mounting portions 220 are usually arranged opposite each other, and the positions of the two connecting arms 210 relative to the corresponding mounting portions 220 are different. However, in the plug-in block 310 provided by this utility model, there are clearance gaps 314 between the lower groove wall 310b and the left groove wall 310c, and between the lower groove wall 310b and the right groove wall 310d, for avoiding the connecting arms 210. With this arrangement, the two plug-in blocks 310 have the same structure, which can meet the installation position requirements of the two connecting arms 210. There is no need to distinguish the position, which is convenient to use. There is also no need to produce two sets of molds for the two plug-in blocks 310 separately, resulting in lower production costs.

[0033] The structure of the aforementioned plug-in block 310 can be perfectly adapted to the connecting arm 210 and mounting part 220 of the existing liquid tray 200a. Therefore, the existing multi-functional injection device can be upgraded and improved simply by adding the aforementioned plug-in block 310 without changing the structure of the liquid tray 200a.

[0034] The multifunctional sample introduction device provided by this utility model is suitable for liquid samples, gas after headspace treatment, samples enriched by solid phase microextraction, etc. It can control the robot arm 500 to introduce samples to the detection analyzer 400 according to the detection sequence instructions.

[0035] Reference Figure 2 After the mounting part 220 of the liquid tray 200a is inserted into the slot 311, the lower slot wall 310b supports and abuts against the mounting part 220, and the left slot wall 310c and the right slot wall 310d abut against the mounting part 220 to limit the left and right swaying of the mounting part 220. Through the friction between the insertion and removal block 310 and the mounting part 220, the mounting part 220 can be prevented from accidentally dislodging from the slot 311 due to external vibrations and other unexpected factors.

[0036] Reference Figure 2 and Figure 3According to some embodiments of the present invention, a limiting protrusion 313 is provided on the upper side of the lower groove wall 310b. The limiting protrusion 313 is used to increase the resistance of the mounting part 220 disengaging from the slot 311, so as to further prevent the mounting part 220 from accidentally disengaging from the slot 311 due to external vibration or other unexpected factors. In addition, the lower groove wall 310b itself has a certain elastic deformation capacity. Therefore, the limiting protrusion 313 will not affect the operator from removing the liquid tray 200a from the plug-in block 310.

[0037] Of course, other methods can also be used to increase the resistance of the mounting part 220 disengaging from the slot 311. For example, the aforementioned limiting protrusion 313 can be replaced with a spring ball.

[0038] Reference Figure 3 According to some embodiments of the present invention, the lower side of the lower groove wall 310b is provided with reinforcing ribs 315 to improve the support capacity of the lower groove wall 310b.

[0039] Reference Figure 3 According to some embodiments of this utility model, the upper tank wall 310a is provided with a mounting hole 312, and a bolt is installed in the mounting hole 312. The upper tank wall 310a is fixed to the crossbeam 110 by the bolt. The lower tank wall 310b is provided with a clearance hole 316 to avoid the bolt, so that a screwdriver can pass through the clearance hole 316 and tighten the bolt, thereby facilitating the installation of the plug-in block 310. In specific implementation, the plug-in block 310 can be directly installed into the threaded hole of the original mounting part 220 for installing the liquid tray 200a on the crossbeam 110, without the need to open an additional threaded hole. Therefore, the modification and upgrading of the multi-functional sample injection device is more convenient and simple.

[0040] The structure of the sample tray 200b is basically the same as that of the liquid tray 200a. The sample tray 200b also has two connecting arms 210, and the upper end of each connecting arm 210 has a horizontal mounting part 220. Therefore, the sample tray 200b can also be installed onto the crossbeam 110 in the same way. In other words, the crossbeam 110 can also be detachably mounted to the sample tray 200b via two plug-in blocks 310. This allows for quick assembly and disassembly of the sample tray 200b.

[0041] Reference Figures 4 to 6 In some other embodiments, it is sometimes necessary to adjust the installation position of the liquid tray 200a. For this purpose, an adjustment structure is provided between the crossbeam 110 and the plug-in block 310. The adjustment structure is used to slide and adjust the position of the plug-in block 310 along the length direction of the crossbeam 110.

[0042] Reference Figures 4 to 6Specifically, the adjustment structure includes two guide support columns 320 and two sliding grooves 317 disposed on the plug-in block 310. The length direction of the guide support columns 320 is along the length direction of the crossbeam 110. The two guide support columns 320 are arranged horizontally side by side. The two guide support columns 320 are correspondingly inserted into the two sliding grooves 317. Thus, through the cooperation between the sliding grooves 317 and the guide support columns 320, the plug-in block 310 can slide and adjust its position along the guide support columns 320.

[0043] Reference Figures 4 to 6 According to some embodiments of the present invention, the plug-in block 310 includes a sliding part 310e, the middle part of which is connected to the upper groove wall 310a. The upper groove wall 310a and the sliding part 310e form two sliding grooves 317 at opposite ends in the width direction of the crossbeam 110. The dimension of the sliding part 310e in the extension direction of the sliding groove 317 is smaller than the interval between the two guide support columns 320. Thus, during the installation of the plug-in block 310, the plug-in block 310 can be rotated so that the sliding part 310e can pass through the two guide support columns 320. Then, by rotating the plug-in block 310, the two guide support columns 320 can be installed into the two sliding grooves 317 one by one. With the above configuration, the plug-in block 310 is easy to install and remove. In addition, if it is necessary to install liquid tray 200a or sample tray 200b, a plug-in block 310 can be directly installed between the two guide support columns 320 according to the actual situation. In this way, the spacing between each liquid tray 200a and sample tray 200b can be adjusted.

[0044] Reference Figure 1 According to some embodiments of this utility model, a placement rack 120 is installed on the crossbeam 110, and a sample injection needle 800 is placed on the placement rack 120. In order to avoid confusion between samples and affect the detection, at least three sample injection needles 800 are configured.

[0045] It should be noted that the injection needle 800 is a commonly used component in this technical field, and its specific structure will not be described in detail here.

[0046] Reference Figure 1 According to some embodiments of this utility model, a cleaning assembly 900 is installed on the crossbeam 110. The cleaning assembly 900 is used to clean the injection needle 800, removing dust and other impurities from the outside air that have adhered to the injection needle 800, thus ensuring the accuracy of the test results. The cleaning assembly 900 is a commonly used component in this technical field, and its specific structure will not be described in detail here.

[0047] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A multi-functional sampling device, characterized by, The utility model relates to a rack (100) is equipped with detection analyzer (400), manipulator (500), the rack (100) is provided with crossbeam (110), the crossbeam (110) is equipped with spare sample tray (200b), headspace heater (600) and solid phase microextraction instrument (700) on installation, liquid tray (200a) is provided with two connecting arms (210) one end, every connecting arm (210) upper end is laterally provided with mounting portion (220), quick detach assembly includes at least two plug -in block (310), plug -in block (310) is installed in crossbeam (110), plug -in block (310) is laterally provided with the slot (311) of insertion, the slot (311) has upper slot wall (310a), lower slot wall (310b), left slot wall (310c) and right slot wall (310d), lower slot wall (310b) with left slot wall (310c) between, lower slot wall (310b) with right slot wall (310d) between all have the clearance (314) of avoidance, wherein, two mounting portion (220) one -to -one correspondence is inserted in two slot (311), and connecting arm (210) passes through the clearance (314) of avoidance of corresponding. The upper side of the lower slot wall (310b) is provided with a limiting protrusion (313) for increasing the resistance of the mounting portion (220) to disengage from the slot (311). The lower side of the lower slot wall (310b) is provided with a reinforcing rib (315). The upper slot wall (310a) is provided with a mounting hole (312), a bolt is mounted in the mounting hole (312), the upper slot wall (310a) is fixed to the crossbeam (110) through the bolt, and the lower slot wall (310b) is provided with an avoidance hole (316) for avoiding the bolt.

2. The multi-functional sampling device of claim 1, wherein, An adjustment structure is provided between the crossbeam (110) and the plug-in block (310), which is used to adjust the position of the plug-in block (310) along the length direction of the crossbeam (110).

3. The multi-functional sampling device of claim 1, wherein, The adjustment structure includes two guide support columns (320) and two sliding grooves (317) provided on the plug-in block (310), the length direction of the guide support column (320) is along the length direction of the crossbeam (110), two guide support columns (320) are arranged horizontally side by side, and two guide support columns (320) are one-to-one correspondingly threaded in two sliding grooves (317).

4. The multi-functional sampling device of claim 1, wherein, The plug-in block (310) includes a sliding portion (310e), the middle part of the sliding portion (310e) is connected to the upper slot wall (310a), the upper slot wall (310a) and the sliding portion (310e) are enclosed at opposite ends in the width direction of the crossbeam (110) to form two sliding grooves (317), and the size of the sliding portion (310e) in the extension direction of the sliding groove (317) is less than the interval between two guide support columns (320).

5. The multi-functional sampling device of claim 1, wherein, ​ 6. The multi-functional sampling device of claim 5, wherein, ​ 7. The multi-functional sampling device of claim 6, wherein, ​ 8. The multi-functional sampling device of claim 1, wherein, A placing rack (120) is mounted on the crossbeam (110), and a sample injection needle (800) is placed on the placing rack (120).

9. The multi-functional sampling device of claim 1, wherein, A cleaning assembly (900) is mounted on the crossbeam (110), and the cleaning assembly (900) is used for cleaning the sample injection needle (800).

10. The multi-functional sampling device of claim 1, wherein, The standby sample tray (200b) also has the connecting arm (210) and the mounting portion (220), and the crossbeam (110) detachably mounts the standby sample tray (200b) through the two plug blocks (310).

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