CN210058324U

CN210058324U - Instrument for derivatization experiment

Info

Publication number: CN210058324U
Application number: CN201920719166.7U
Authority: CN
Inventors: 朱萌萌; 周敏; 周婷婷; 王川丕; 裴华; 刘芯成; 汪腊云; 朱晓薇; 吴丹虹; 李文娟
Original assignee: Greentown Agricultural Detection Technology Co Ltd
Current assignee: Greentown Agricultural Detection Technology Co Ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-02-14
Anticipated expiration: 2029-05-17

Abstract

The utility model discloses an instrument for derivatization experiments, in particular to the field of laboratory instruments, which comprises a reaction device for accommodating samples and reagents and a fixing frame; the fixing frame comprises a base, a supporting rod and a clamp, wherein one end of the supporting rod is fixed with the base; the clamp comprises a connecting rod, a clamp for clamping the reaction device and a fixing ring sleeved on the outer side wall of the supporting rod, one end of the connecting rod is fixed with the clamp, and the other end of the connecting rod is fixed with the fixing ring. The utility model has the advantages of can fix the clamping derived small bottle, prevent that it from damaging or toppling over at the in-process of derivatization reaction.

Description

Instrument for derivatization experiment

Technical Field

The utility model relates to a laboratory apparatus field specifically is an instrument for derivatization experiments.

Background

In the laboratory for detecting and analyzing a chromatographic sample, certain compounds generally need to be subjected to a chemical reaction with certain chemical reagents under specific conditions, a target compound in the sample is prepared into an appropriate derivative, and then the target compound is separated and detected by chromatography. Because different compounds need different derivatization reaction conditions, such as high temperature, water bath or refrigeration, etc. It is therefore necessary for the laboratory personnel to place derivative vials containing the sample and reagents in different heating and freezing apparatus for processing.

In the prior art, laboratory personnel usually fix the derivative vial by using a test tube rack or a clamp, and then put the derivative vial in a water bath or other instruments for heat treatment.

However, during handling of the derivative vials by the experimenter, the derivative vials may be tipped over due to their insufficient holding strength. The derivative vial, upon being accidentally tipped off, can result in damage or spillage of the contents, thereby affecting the progress of the experiment.

SUMMERY OF THE UTILITY MODEL

The utility model provides an instrument for derivatization experiments, this instrument have can fix the clamping and derive the vial, prevent that it from damaging or empting at the in-process of derivatization, carry out derivatization's advantage to many batches of samples simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme:

an instrument for derivatization experiments comprises a reaction device for accommodating samples and reagents and a fixing frame; the fixing frame comprises a base, a supporting rod and a clamp, wherein one end of the supporting rod is fixed with the base; the clamp comprises a connecting rod, a clamp for clamping the reaction device and a fixing ring sleeved on the outer side wall of the supporting rod, one end of the connecting rod is fixed with the clamp, and the other end of the connecting rod is fixed with the fixing ring.

Preferably, the side wall of the supporting rod is provided with a sliding groove, and correspondingly, the inner side of the fixing ring is provided with a sliding block matched with the sliding groove; the fixture further comprises a fixing part for fixing the position of the fixing ring, the fixing part comprises an upper positioning ring and a lower positioning ring which are sleeved on the supporting rod, the fixing ring is arranged between the upper positioning ring and the lower positioning ring, the outer side wall of the supporting rod is provided with a thread section, correspondingly, the upper positioning ring and the lower positioning ring are both provided with fixing threads which are connected with the fixing threads in a threaded manner.

Preferably, the clamp further includes a bolt for reducing the opening of the band.

Preferably, the fixing ring is a bearing, the outer side of the bearing is fixed with the connecting rod, and the inner side of the bearing is tightly attached to the support rod.

Preferably, the reaction device comprises an outer tube and an inner tube for storing liquid, the outer tube comprises an upper tube and a lower tube which are detachably arranged, the upper tube and the lower tube are combined to form a cavity for accommodating the inner tube, a limiting groove is formed in an opening of the upper tube, and correspondingly, a limiting flange adapted to the limiting groove is formed in an opening of the upper end of the inner tube.

Preferably, the inner tube body is provided with a sealing plug.

Preferably, a push rod is arranged at the upper end of the sealing plug, the push rod is rotatably connected with a connecting rod, one end, back to the push rod, of the connecting rod is rotatably connected with the supporting rod, and correspondingly, one end, back to the base, of the supporting rod is provided with a rotating groove.

Preferably, the bottom end of the inner tube body is tapered.

The utility model has the advantages that:

the utility model discloses in, the experimenter can place sample and derivatization reagent in reaction unit in advance, and it is fixed to adopt the clamp to press from both sides reaction unit simultaneously. Moreover, the fixing ring can be connected with a plurality of connecting rods, and correspondingly, the connecting rods can be fixed with a plurality of hoops. Thus, the experimenter can perform experiments on multiple samples simultaneously when using the instrument for a derivatization reaction. The reaction device can be prevented from accidentally dropping, the experimental conditions of samples in the same batch are almost the same, and the precision and the repeatability of the experimental result are better.

Drawings

FIG. 1 is a schematic diagram of an apparatus for derivatization experiments in this example;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic diagram showing a partial cross-sectional structure of an apparatus for derivatization experiments in this example;

fig. 4 is an enlarged view of a portion B in fig. 3.

In the figure: 1. the device comprises a base, 11, a support rod, 12, a thread section, 13, a sliding groove, 2, an upper positioning ring, 3, a lower positioning ring, 4, a fixing ring, 41, an upper pipe body, 42, a lower pipe body, 43, a connecting rod, 44, an inner pipe body, 440, a limiting flange, 45, a push rod, 46, a sealing plug, 51, a clamp, 52 and a bolt.

Detailed Description

The embodiment provides a technical scheme:

as shown in fig. 1 to 4, an apparatus for derivatization experiments includes a reaction device for accommodating a sample and a reagent, and a fixing frame; the fixing frame comprises a base 1, a supporting rod 11 and a clamp, wherein one end of the supporting rod 11 is fixed with the base 1; the clamp comprises a connecting rod 43, a clamp 51 used for clamping the reaction device and a fixing ring 4 sleeved on the outer side wall of the support rod 11, one end of the connecting rod 43 is fixed with the clamp 51, and the other end of the connecting rod is fixed with the fixing ring 4.

In this embodiment, the laboratory technician may previously place the sample and the derivatizing reagent in the reaction apparatus, and the reaction apparatus is clamped and fixed by the clamp 51. A plurality of tie bars can be connected to the fixing ring 4, and correspondingly, a plurality of clips 51 can be fixed to the plurality of tie bars 43. Thus, the experimenter can perform experiments on multiple samples simultaneously when using the instrument for a derivatization reaction. Not only can prevent the reaction device from accidentally dropping, but also can ensure that the samples of the same batch are almost under the same experimental conditions.

As shown in fig. 2, the side wall of the support rod 11 is provided with a sliding groove 13, and correspondingly, the inner side of the fixing ring 4 is provided with a sliding block matched with the sliding groove 13; the anchor clamps are still including the mounting that is used for fixed ring 4 positions, and the mounting is including the last holding ring 2 and holding ring 3 down that the cover was located on the bracing piece 11, and solid fixed ring 4 sets up between last holding ring 2 and holding ring 3 down, and 11 lateral walls of bracing piece are equipped with screw thread section 12, correspondingly, go up holding ring 2 and holding ring 3 down and all be equipped with the fixed thread spiro union. In order to facilitate the experimenter to adjust the position of the fixing ring 4 according to the actual situation, the fixing ring 4 and the supporting rod 11 are arranged in a sliding way. After the experimenter slides the fixing ring 4 to the proper position. The position can be limited by the thread fit between the upper positioning ring 2 and the lower positioning ring 3 and the support rod 11. Thereby causing the fixing ring 4 to be chucked and fixed.

As shown in fig. 1, the jig further includes a bolt 52 for reducing the opening of the yoke 51. The experimenter can adjust the bolts 52 according to the size of the reaction device, so that the clamp 51 clamps the reaction device to realize fixation.

As shown in fig. 3, the fixing ring 4 is a bearing, the outer side of which is fixed to the connecting rod 43, and the inner side of which is in close contact with the support rod 11. The experimenter can adjust the angular position of the reaction device by rotating the connecting rod 43.

Preferably, the reaction device comprises an outer tube and an inner tube 44 for storing liquid, the outer tube comprises an upper tube 41 and a lower tube 42 which are detachably arranged, the upper tube 41 and the lower tube 42 are combined to form a cavity for accommodating the inner tube 44, the opening part of the upper tube 41 is provided with a limiting groove, and correspondingly, the opening part of the upper end of the inner tube 44 is provided with a limiting flange 440 matched with the limiting groove. Because the amount of the sample or the reagent is very small in the process of derivatization reaction, if the sample and the derivatization reagent are directly placed in a sample injection bottle, the later period of suction is inconvenient. Therefore, in this embodiment, the sample and the derivatizing reagent can be placed in the inner tube 44 with a sharp bottom, which is convenient for the experimenter to suck the concentrated solution. The benefit of having the outer body of removable setting (threaded connection or lock joint) simultaneously in the outside of inner tube body 44 lies in: (1) the outer tube body is large in size, can be erected on the experiment table top and is not prone to toppling. (2) The band 51 is clamped in contact with the outside of the outer body.

As shown in fig. 4, inner tube 44 is provided with a sealing plug 46. The sealing plug 46 prevents moisture or contaminants from entering the inner tube 44, thereby ensuring the stability of the derivatization reaction.

As shown in fig. 4, a push rod 45 is disposed at an upper end of the sealing plug 46, the push rod 45 is rotatably connected to a connecting rod, one end of the connecting rod, which faces away from the push rod 45, is rotatably connected to the supporting rod 11, and correspondingly, one end of the supporting rod 11, which faces away from the base 1, is provided with a rotating groove.

In this embodiment, the bottom end of inner tube 44 is tapered.

Claims

1. An instrument for derivatization experiments is characterized by comprising a reaction device for accommodating samples and reagents and a fixing frame;

the fixing frame comprises a base (1), a supporting rod (11) and a clamp, wherein one end of the supporting rod (11) is fixed with the base (1);

the clamp comprises a connecting rod (43), a clamp (51) used for clamping the reaction device and a fixing ring (4) sleeved on the outer side wall of the supporting rod (11), one end of the connecting rod (43) is fixed with the clamp (51), and the other end of the connecting rod is fixed with the fixing ring (4).

2. The apparatus for derivatization experiments according to claim 1, wherein the side wall of the support rod (11) is provided with a sliding groove (13), and correspondingly, the inner side of the fixing ring (4) is provided with a sliding block which is matched with the sliding groove (13);

anchor clamps are still including the mounting that is used for fixed ring (4) position, and the mounting is located last holding ring (2) and holding ring (3) down on bracing piece (11) including the cover, and fixed ring (4) set up between last holding ring (2) and holding ring (3) down, bracing piece (11) lateral wall is equipped with screw thread section (12), correspondingly, go up holding ring (2) and holding ring (3) down all be equipped with the fixed thread of fixed thread spiro union.

3. The apparatus for derivatization experiments according to claim 1, wherein the clamp further comprises a bolt (52) for reducing the opening of the clamp (51).

4. The apparatus for derivatization experiments according to claim 1, wherein the fixing ring (4) is a bearing, the outer side of the bearing is fixed to the connecting rod (43), and the inner side of the bearing is tightly attached to the supporting rod (11).

5. The apparatus for derivatization experiments according to claim 1, wherein the reaction device comprises an outer tube and an inner tube (44) for storing liquid, the outer tube comprises an upper tube (41) and a lower tube (42) which are detachably disposed, the upper tube (41) and the lower tube (42) are combined to form a cavity for accommodating the inner tube (44), the upper tube (41) is provided with a limiting groove at an opening portion, and correspondingly, the inner tube (44) is provided with a limiting flange (440) adapted to the limiting groove at an upper end opening portion.

6. Apparatus for derivatization experiments according to claim 5, wherein the inner tube (44) is provided with a sealing stopper (46).

7. The apparatus for derivatization experiments according to claim 6, wherein a push rod (45) is disposed at an upper end of the sealing plug (46), the push rod (45) is rotatably connected with a connecting rod, an end of the connecting rod, which faces away from the push rod (45), is rotatably connected with the support rod (11), and correspondingly, an end of the support rod (11), which faces away from the base (1), is provided with a rotating groove.

8. The apparatus for derivatization experiments according to claim 5, wherein the bottom end of the inner tube (44) is tapered.