CN220188437U - Liquid chromatograph sampling equipment - Google Patents

Abstract

The utility model discloses liquid chromatography sampling equipment, which comprises a base, wherein the top of the base is fixedly connected with a tray, the top of the tray is provided with a plurality of placing grooves, the top of the base is fixedly connected with a plurality of placing rings, the placing rings are communicated with the corresponding placing grooves, and one side of each placing ring is provided with a fastening component for sealing an opening above the placing ring; the utility model relates to the technical field of sampling equipment, in particular to a clamping assembly, which comprises two supporting plates fixedly connected to the top of a tray, wherein the same rotating rod is rotationally connected between the two supporting plates; this liquid chromatograph sampling equipment can seal the open-top of placing the ring through the tight subassembly that sets up, prevents that remaining solution can drip to other test tubes on the syringe needle when gathering sample solution, leads to sample solution to confuse the disorder, influences follow-up detection.

Description

Liquid chromatograph sampling equipment

Technical Field

The utility model relates to the technical field of sampling equipment, in particular to liquid chromatography sampling equipment.

Background

A liquid chromatograph is an instrument that uses the difference in partition ratio of a mixture between two liquids, which are liquid-solid or immiscible, to separate the mixture first and then analyze and identify the mixture, and when in use, needs to collect a sample solution.

Publication number CN214122128U discloses a liquid chromatography sampling device comprising: triaxial moving platform, syringe needle sampling device, reagent tray frame, triaxial moving platform includes: the device comprises a bottom plate, an X axial moving plate and a Y axial moving plate, wherein the X axial moving plate is arranged on the bottom plate and can move left and right along the bottom plate, the Y axial moving plate is arranged on the X axial moving plate and can move along the X axial moving plate, the injection needle sampling device is arranged on the Y axial moving plate through a lifting device, and the reagent tray frame is detachably arranged on the bottom plate. The utility model adopts a reagent tray frame to place diluted samples and place the diluted samples on a bottom plate, controls an injection needle sampling device to move to different samples to be diluted for dilution through a triaxial moving platform on the bottom plate, and rapidly and accurately moves the injection needle sampling device and accurately controls the injection quantity of diluted liquid through a control program.

However, the adoption device has the following defects that when the device adopts the sample solution, a plurality of reagent tray frames are densely arranged together, different sample solutions are acquired by moving the sampling device, the opening of a test tube for containing the sample solution is not closed, and part of the solution can drop into other test tubes when the sample solution is absorbed, so that the subsequent detection and use are affected.

To this end, the present utility model provides a liquid chromatography sampling apparatus to solve the above-mentioned problems.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides liquid chromatography sampling equipment, which solves the problems.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the liquid chromatograph sampling equipment comprises a base, wherein the top of the base is fixedly connected with a tray, the top of the tray is provided with a plurality of placing grooves, the top of the base is fixedly connected with a plurality of placing rings, the placing rings are communicated with the corresponding placing grooves, and one side of each placing ring is provided with a closing component for closing an opening above the placing ring;

the utility model discloses a tray, including the subassembly that tightly closes, the subassembly is closed including fixed connection at two backup pads at the tray top, two rotate between the backup pad and be connected with same dwang, fixed cover is equipped with tightly closes the lid on the dwang, one side fixedly connected with contact plate of tightly closing the lid, slide the cover on the dwang and be equipped with two torsional springs, two the one end that the torsional spring kept away from each other is respectively with corresponding backup pad fixed connection, two the one end that the torsional spring is close to each other all with tightly close lid fixed connection, the bottom fixedly connected with of tightly closing the lid is sealed to be filled up, sealed pad contacts with placing the ring.

Preferably, a plurality of mounting grooves are formed in the top of the tray, a cylinder is inserted in the mounting grooves in a sliding mode, a retaining plate is fixedly connected to the top of the cylinder, the bottom of the retaining plate is in contact with the top of a corresponding contact plate, the contact plate is conveniently extruded through the mounting grooves, the cylinder and the retaining plate, and therefore the solution in the test tube below is conveniently sampled by opening the closing cover.

Preferably, the bottom inner wall fixedly connected with of mounting groove prevents the off-set pole, prevent that the top of off-set pole slides and extends to in the drum, the slip cap is equipped with first spring on the off-set pole, the top of first spring and the bottom fixed connection of drum, the bottom of first spring and the bottom inner wall fixed connection of mounting groove, the top fixedly connected with second spring of off-set pole, the top of second spring and the top inner wall fixed connection of drum, the cooperation of off-set pole, first spring and second spring through setting up can make the butt plate have elasticity, can initiatively reset after losing pressure.

Preferably, the top fixedly connected with two cylinders of base, two the output shaft fixedly connected with of cylinder is the same indulges and puts the case, it is provided with horizontal case to indulge one side of putting the case, the below of putting the case is provided with needle tubing sampling equipment, one side fixedly connected with multistage electric telescopic handle of needle tubing sampling equipment, the output shaft fixedly connected with clamp plate of multistage electric telescopic handle, through the cylinder of setting, indulge and put case, horizontal case, needle tubing sampling equipment, multistage electric telescopic handle and clamp plate collocation use can conveniently drive needle tubing sampling equipment and remove, conveniently opens the close subassembly of below simultaneously.

Preferably, the first motor of one side outer wall fixedly connected with of case is put to indulging, the output shaft fixedly connected with first threaded rod of first motor, the one end rotation of first threaded rod extends to indulging and puts in the case, the screw thread cover is equipped with longitudinal movement piece on the first threaded rod, the activity of one side of longitudinal movement piece extends to indulging and puts outside the case, one side and the horizontal case fixed connection of longitudinal movement piece can conveniently drive needle tubing sampling equipment longitudinal movement through the first motor, first threaded rod and the longitudinal movement piece collocation use that set up.

Preferably, a second motor is fixedly connected to the outer wall of one side of the transverse box, a second threaded rod is fixedly connected to an output shaft of the second motor, one end of the second threaded rod is rotated and extends into the transverse box, a transverse moving block is sleeved on the second threaded rod, the bottom of the transverse moving block is movably extended out of the transverse box, the bottom of the transverse moving block is fixedly connected with needle tube sampling equipment, and the needle tube sampling equipment is driven to transversely move through the arranged second motor, the second threaded rod and the transverse moving block in a matched mode.

Preferably, the first sliding rod is fixedly connected in the longitudinal box, and penetrates through the longitudinal moving block in a sliding manner, and the longitudinal moving block can be limited through the arranged first sliding rod, so that the movement of the longitudinal moving block is smoother.

Preferably, the second sliding rod is fixedly connected in the transverse box and penetrates through the transverse moving block in a sliding mode, and the transverse moving block can be limited through the arranged second sliding rod, so that the transverse moving block can move smoothly.

Advantageous effects

The utility model provides liquid chromatography sampling equipment. Compared with the prior art, the method has the following beneficial effects:

(1) This liquid chromatograph sampling equipment can seal the open-top of placing the ring through the tight subassembly that sets up, prevents that remaining solution can drip to other test tubes on the syringe needle when gathering sample solution, leads to sample solution to confuse in disorder, influences follow-up detection.

(2) This liquid chromatograph sampling equipment uses through the multistage electric telescopic handle that sets up in needle tubing sampling equipment one side and clamp plate collocation and can extrude the butt plate thereby makes the tight closing lid rotate and keep away from and place the ring to make things convenient for needle tubing sampling equipment to insert to in the test tube, make things convenient for the sample.

Drawings

FIG. 1 is a perspective view of the external structure of the present utility model;

FIG. 2 is a schematic elevational cross-sectional view of the present utility model;

FIG. 3 is a schematic view of the structure of the fastening assembly of the present utility model;

fig. 4 is an enlarged schematic view of the portion a in fig. 2.

In the figure: 1. a base; 2. a tray; 3. a placement groove; 4. placing a ring; 5. a cinching assembly; 501. a support plate; 502. a rotating lever; 503. a closing cover; 504. a contact plate; 505. a torsion spring; 506. a sealing gasket; 6. a mounting groove; 7. a cylinder; 8. a retaining plate; 9. an anti-deflection rod; 10. a first spring; 11. a second spring; 12. a cylinder; 13. a vertical box; 14. a transverse box; 15. needle tube sampling equipment; 16. a multi-stage electric telescopic rod; 17. a pressing plate; 18. a first motor; 19. a first threaded rod; 20. a longitudinal moving block; 21. a second motor; 22. a second threaded rod; 23. a lateral moving block; 24. a first slide bar; 25. and a second slide bar.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

referring to fig. 2 and 3, a liquid chromatograph sampling device includes a base 1, a tray 2 is fixedly connected to the top of the base 1, a plurality of placement grooves 3 are formed in the top of the tray 2, a plurality of placement rings 4 are fixedly connected to the top of the base 1, the placement rings 4 are communicated with the corresponding placement grooves 3, and a fastening assembly 5 for closing an opening above the placement rings 4 is arranged on one side of the placement rings 4;

the fastening assembly 5 comprises two support plates 501 fixedly connected to the top of the tray 2, a same rotating rod 502 is rotatably connected between the two support plates 501, a fastening cover 503 is fixedly sleeved on the rotating rod 502, one side of the fastening cover 503 is fixedly connected with a contact plate 504, two torsion springs 505 are slidably sleeved on the rotating rod 502, one ends, far away from each other, of the two torsion springs 505 are respectively fixedly connected with the corresponding support plates 501, one ends, close to each other, of the two torsion springs 505 are respectively fixedly connected with the fastening cover 503, a sealing gasket 506 is fixedly connected to the bottom of the fastening cover 503, the sealing gasket 506 is made of rubber materials, and the sealing gasket 506 is in contact with the placement ring 4; the top of the tray 2 is provided with a plurality of mounting grooves 6, a cylinder 7 is inserted in the mounting grooves 6 in a sliding way, the top of the cylinder 7 is fixedly connected with a retaining plate 8, and the bottom of the retaining plate 8 is contacted with the top of a corresponding contact plate 504; the bottom inner wall fixedly connected with of mounting groove 6 prevents that the top of preventing deviating from pole 9 slides and extends to in the drum 7, and the slip cap is equipped with first spring 10 on preventing deviating from the pole 9, the top of first spring 10 and the bottom fixed connection of drum 7, the bottom of first spring 10 and the bottom inner wall fixed connection of mounting groove 6, the top fixedly connected with second spring 11 of preventing deviating from pole 9, the top of second spring 11 and the top inner wall fixed connection of drum 7.

Embodiment two:

referring to fig. 1 to 4, the present embodiment provides a technical solution based on the first embodiment: the top of the base 1 is fixedly connected with two air cylinders 12, the output shafts of the two air cylinders 12 are fixedly connected with the same longitudinal box 13, one side of the longitudinal box 13 is provided with a transverse box 14, needle tube sampling equipment 15 is arranged below the transverse box 14, one side of the needle tube sampling equipment 15 is fixedly connected with a multi-stage electric telescopic rod 16, and the output shaft of the multi-stage electric telescopic rod 16 is fixedly connected with a pressing plate 17; the outer wall of one side of the longitudinal box 13 is fixedly connected with a first motor 18, an output shaft of the first motor 18 is fixedly connected with a first threaded rod 19, one end of the first threaded rod 19 rotates and extends into the longitudinal box 13, a longitudinal moving block 20 is sleeved on the first threaded rod 19 in a threaded manner, one side of the longitudinal moving block 20 movably extends out of the longitudinal box 13, and one side of the longitudinal moving block 20 is fixedly connected with the transverse box 14; the outer wall of one side of the transverse box 14 is fixedly connected with a second motor 21, an output shaft of the second motor 21 is fixedly connected with a second threaded rod 22, one end of the second threaded rod 22 rotates and extends into the transverse box 14, a transverse moving block 23 is sleeved on the second threaded rod 22 in a threaded manner, the bottom of the transverse moving block 23 movably extends out of the transverse box 14, and the bottom of the transverse moving block 23 is fixedly connected with needle tube sampling equipment 15; a first slide bar 24 is fixedly connected in the longitudinal box 13, and the first slide bar 24 penetrates through the longitudinal moving block 20 in a sliding manner; a second slide bar 25 is fixedly connected in the transverse box 14, and the second slide bar 25 penetrates through the transverse moving block 23 in a sliding manner.

And all that is not described in detail in this specification is well known to those skilled in the art.

During operation, the position where a sample solution test tube needs to be collected is firstly selected, then the first motor 18 and the second motor 21 are started, the first motor 18 drives the longitudinal moving block 20 connected with threads to move through the first threaded rod 19, the second motor 21 drives the transverse moving block 23 connected with the second threaded rod through the second threaded rod 22 to move, at the moment, the needle tube sampling device 15 moves along with the transverse moving block until the needle tube sampling device moves to a proper position, then the multi-stage electric telescopic rod 16 is started, the multi-stage electric telescopic rod 16 drives the pressing plate 17 to descend until the pressing plate 17 abuts against the resisting plate 8, the resisting plate 8 presses the contact plate 504, the tight closing cover 503 rotates and presses the torsion spring 505, the top opening of the placing ring 4 is opened, at the moment, the two air cylinders 12 are started again, the air cylinders 12 drive the longitudinal placing box 13 to descend, the multi-stage electric telescopic rod 16 is synchronously started in the process, the needle tube sampling device 15 can be smoothly inserted into the test tube in the placing groove 3, after the sampling is completed, the sampling device 15 resets, the tight cover 503 resets under the elasticity of the torsion spring 505, the needle tube is closed, the placing ring 4 is reset, and the residual solution on the needle tube 15 cannot drop down into the test tube, and the test tube is convenient to use.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. Liquid chromatograph sampling equipment, including base (1), its characterized in that: the top of the base (1) is fixedly connected with a tray (2), a plurality of placing grooves (3) are formed in the top of the tray (2), a plurality of placing rings (4) are fixedly connected to the top of the base (1), the placing rings (4) are communicated with the corresponding placing grooves (3), and a closing component (5) for closing an opening above the placing rings (4) is arranged on one side of the placing rings (4);

the utility model provides a tight subassembly (5) including two backup pads (501) of fixed connection at tray (2) top, two rotate between backup pad (501) and be connected with same dwang (502), fixed cover is equipped with tight lid (503) on dwang (502), one side fixedly connected with contact plate (504) of tight lid (503), sliding sleeve is equipped with two torsional springs (505) on dwang (502), two the one end that torsional springs (505) kept away from each other is respectively with backup pad (501) fixed connection that corresponds, two the one end that torsional springs (505) are close to each other all with tight lid (503) fixed connection, the bottom fixedly connected with sealing washer (506) of tight lid (503), sealing washer (506) are contacted with placing ring (4).

2. A liquid chromatography sampling apparatus according to claim 1, wherein: a plurality of mounting grooves (6) are formed in the top of the tray (2), a cylinder (7) is inserted in the mounting grooves (6) in a sliding mode, a retaining plate (8) is fixedly connected to the top of the cylinder (7), and the bottom of the retaining plate (8) is in contact with the top of a corresponding contact plate (504).

3. A liquid chromatography sampling apparatus according to claim 2, wherein: the anti-deflection device is characterized in that an anti-deflection rod (9) is fixedly connected to the bottom inner wall of the mounting groove (6), the top end of the anti-deflection rod (9) is slidably extended into the cylinder (7), a first spring (10) is sleeved on the anti-deflection rod (9) in a sliding mode, the top end of the first spring (10) is fixedly connected with the bottom end of the cylinder (7), the bottom end of the first spring (10) is fixedly connected with the bottom inner wall of the mounting groove (6), a second spring (11) is fixedly connected to the top end of the anti-deflection rod (9), and the top end of the second spring (11) is fixedly connected with the top inner wall of the cylinder (7).

4. A liquid chromatography sampling apparatus according to claim 1, wherein: the automatic needle tube sampling device is characterized in that two cylinders (12) are fixedly connected to the top of the base (1), the two cylinders (12) are fixedly connected with a same longitudinal box (13), a transverse box (14) is arranged on one side of the longitudinal box (13), needle tube sampling equipment (15) is arranged below the transverse box (14), a multi-stage electric telescopic rod (16) is fixedly connected to one side of the needle tube sampling equipment (15), and a pressing plate (17) is fixedly connected to the output shaft of the multi-stage electric telescopic rod (16).

5. The liquid chromatography sampling apparatus of claim 4, wherein: the utility model discloses a vertical box, including vertical box (13), first motor (18) of one side outer wall fixedly connected with of vertical box (13), the output shaft fixedly connected with first threaded rod (19) of first motor (18), the one end rotation of first threaded rod (19) extends to vertical box (13) in, the screw thread cover is equipped with vertical movable block (20) on first threaded rod (19), one side activity of vertical movable block (20) extends to vertical box (13) outside, one side and horizontal box (14) fixed connection of vertical movable block (20).

6. The liquid chromatography sampling apparatus of claim 4, wherein: one side outer wall fixedly connected with second motor (21) of horizontal case (14), the output shaft fixedly connected with second threaded rod (22) of second motor (21), the one end rotation of second threaded rod (22) extends to in horizontal case (14), the thread bush is equipped with lateral shifting piece (23) on second threaded rod (22), the bottom activity of lateral shifting piece (23) extends to outside horizontal case (14), the bottom and needle tubing sampling equipment (15) fixed connection of lateral shifting piece (23).

7. The liquid chromatography sampling apparatus of claim 5, wherein: the first sliding rod (24) is fixedly connected in the longitudinal box (13), and the first sliding rod (24) penetrates through the longitudinal moving block (20) in a sliding mode.

8. The liquid chromatography sampling apparatus of claim 6, wherein: the transverse box (14) is internally and fixedly connected with a second sliding rod (25), and the second sliding rod (25) penetrates through the transverse moving block (23) in a sliding mode.