CN217359938U

CN217359938U - Three-dimensional sample injector

Info

Publication number: CN217359938U
Application number: CN202220717977.5U
Authority: CN
Inventors: 董保献; 李四华; 肖静泽; 房昕; 薛辰全; 赵昕; 杜月
Original assignee: Beijing Jitian Instrument Co ltd
Current assignee: Beijing Jitian Instrument Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-09-02
Anticipated expiration: 2032-03-29

Abstract

The utility model provides a three-dimensional sample injector, which comprises a bracket, a rotating shaft and a driving unit thereof; further comprising: a plurality of sample trays having a plurality of test tube carrying positions for different sized test tubes; the rotating shafts are respectively connected with the plurality of sample discs; a marker disposed on the sample tray, the marker carrying information of the sample tray; the identification unit is arranged on the bracket and is used for reading out the information carried by the marker; the rotating arm is arranged on the bracket outside the sample disc; the sampling component is arranged on the rotating arm; a moving unit driving the sampling member to vertically move. The utility model has the advantages of the sample plate is switched conveniently and quickly.

Description

Three-dimensional sample injector

Technical Field

The utility model relates to a advance kind, in particular to three-dimensional formula injector.

Background

At present, water quality or spectrum analytical instruments on the market generally adopt an automatic sample injector for sample injection, and test tubes for containing samples to be detected are placed on a sample tray. In order to meet the requirements of client groups with different test volumes, multiple sample injector models exist in the market, and one model only supports one sample disc and does not support the sample disc replacement and the disc identification function. Therefore, after the type of the sample injector is determined, the number of the sample tray and the number of test tubes that can be placed on the tray are determined.

In an actual test, there are both test samples requiring detection of a large quantity of light based on a large number of bases and test samples requiring detection of a large quantity of light based on a small number of bases, regardless of a three-party detection mechanism, an environmental detection unit, an environmental protection detection unit, a disease control system, or other detection units. This requires at least two types of sample trays, one is a large number of tubes, each with a small volume; firstly, the number of test tubes is small, and each test tube has a large capacity. If both are considered, the test tube with large capacity and the test tube with small capacity are arranged on one disc surface, but the result that one-time detection cannot meet the test requirement is caused.

Also, in some special methods such as ammonia nitrogen, nitrate nitrogen, sulfide, etc., if the two samples are close, there is cross contamination caused by air diffusion. If a sample is placed in a plurality of test tubes, there is a problem that the test results of the plurality of test tubes are not uniform when tilted out. This requires large capacity, large pitch sample trays.

Based on the test requirements, a detection unit needs to purchase sample injectors of various models, so that the test cost of the detection unit is increased invisibly; meanwhile, the sample injector is replaced in the actual test, so that the test efficiency of a detection unit is inevitably reduced.

SUMMERY OF THE UTILITY MODEL

For solving the not enough among the above-mentioned prior art scheme, the utility model provides a three-dimensional formula injector.

The utility model aims at realizing through the following technical scheme:

a three-dimensional sample injector, the three-dimensional sample injector comprising a support; the three-dimensional injector further comprises:

a plurality of sample trays having a plurality of test tube carrying positions for carrying test tubes of different sizes and/or different spacings; the plurality of sample trays are fixed on the bracket;

a marker disposed on the sample tray, the marker carrying information of the sample tray;

the identification unit is arranged on the bracket and is used for identifying the information carried by the marker;

a three-dimensional robotic arm providing three-dimensional movement;

the sampling part is arranged on the three-dimensional mechanical arm.

Compared with the prior art, the utility model discloses the beneficial effect who has does:

1. the cost is low;

a plurality of samplers do not need to be purchased, but a plurality of sample trays (with different sizes and/or intervals) are matched on one sampler simultaneously, so that different detection requirements are met, and the cost is obviously reduced;

2. the detection efficiency is high;

a plurality of sample dishes can be fixed on the support simultaneously, need not to wait for sample dish fixed, has improved detection efficiency.

Drawings

The disclosure of the present invention will become more readily understood with reference to the accompanying drawings. As is readily understood by those skilled in the art: these drawings are only intended to illustrate the technical solution of the present invention and are not intended to limit the scope of the present invention. In the figure:

fig. 1 is a schematic structural diagram of a three-dimensional sample injector according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a sample tray according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a sample tray according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a carrier and an identification unit according to an embodiment of the present invention.

Detailed Description

Fig. 1-4 and the following description depict alternative embodiments of the invention to teach those skilled in the art how to make and reproduce the invention. For explaining the technical solution of the present invention, some conventional aspects have been simplified or omitted. Those skilled in the art will appreciate variations or substitutions from these embodiments that will be within the scope of the invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. Accordingly, the present invention is not limited to the following alternative embodiments, but is only limited by the claims and their equivalents.

Example 1:

fig. 1 schematically shows a schematic diagram of a three-dimensional sample injector according to an embodiment of the present invention, and as shown in fig. 1, the three-dimensional sample injector includes:

a plurality of sample trays 12-15 having a plurality of test tube carrying positions 10, the carrying positions 10 of the plurality of sample trays 12-15 being for carrying test tubes of different sizes and/or different pitches; the plurality of sample trays 12-15 are secured to the rack;

a marker 41, as shown in fig. 2-3, said marker 41 being disposed on said sample plate, said marker 41 carrying information of the sample plate;

an identification unit 42, as shown in fig. 4, the identification unit 42 is disposed on the support and is used for identifying the information carried by the marker 41;

a three-dimensional robotic arm 21, said robotic arm 21 providing three-dimensional movement;

the sampling part is arranged on the three-dimensional mechanical arm.

In order to fix the sample plate, further, the three-dimensional type sample injector further includes:

a carrier 51, the carrier 51 for carrying a plurality of sample trays.

In order to reduce the sampling difficulty, the bearing positions 10 are arranged on the sample discs in a matrix form, and a plurality of sample discs 12-15 are arranged on the bracket in parallel.

Example 2:

according to the utility model discloses the application example of three-dimensional formula sample injector in water quality analyzer of embodiment 1.

In this application example, as shown in fig. 1, four sample trays 12 to 15 are arranged side by side on a rack on which a cleaning bath 31 is provided; the three-dimensional mechanical arm 21 is fixed on the bracket; the sampling part adopts a sampling needle and is arranged on the three-dimensional mechanical arm, so that three-dimensional movement is realized, and test tubes on the bearing positions 10 (on a plurality of sample trays) selected by sampling are sampled;

as shown in fig. 2-3, the marker 41 adopts coding shells with different lengths, and the sample tray is fixed on the identification unit 42 on the carrier 51 by using the coding shells;

as shown in fig. 4, the identification unit 42 is disposed on the carrier 51, the contact switch is adopted in the embodiment, the contact switch is triggered by using different coding shells, and the identification of the sample tray (marker) is realized, so that the spatial coordinate system corresponding to the sample tray is selected, and the selection and sampling of the carrier (test tube) are realized.

Example 3:

according to the utility model discloses embodiment 1's application example of three-dimensional formula sample injector in water quality analyzer, different with embodiment 2 is:

1. the marker adopts a magnet array, the identification unit adopts a Hall sensor, and the marker is not fixed on the identification unit any more;

2. no further carrier is provided and the sample disc is arranged on a holder, e.g. in a recess of the holder.

Claims

1. A three-dimensional sample injector, the three-dimensional sample injector comprising a support; characterized in that, three-dimensional formula injector still includes:

a three-dimensional robotic arm providing three-dimensional movement;

the sampling part is arranged on the three-dimensional mechanical arm.

2. The three-dimensional sample injector of claim 1, further comprising:

a carrier for carrying a plurality of sample trays.

3. The three-dimensional sample injector of claim 2, wherein the sample tray is affixed to the carrier with the marker.

4. The three-dimensional sample injector according to claim 1, wherein the loading positions are arranged in a matrix on the sample trays, and a plurality of sample trays are arranged side by side on the rack.

5. The three-dimensional sample injector of claim 1, wherein the marker is a coded housing of different lengths or an array of magnets.

6. The three-dimensional sample injector according to claim 5, characterized in that the identification unit is a photoelectric sensor, a contact switch or a Hall sensor.