CN210221807U

CN210221807U - Quick sampling device of spectrophotometer

Info

Publication number: CN210221807U
Application number: CN201921034557.1U
Authority: CN
Inventors: Qing Li; 李青; Hui Zhou; 周辉
Original assignee: Anhui Zero Nine Environmental Protection Technology Co ltd
Current assignee: Anhui Zero Nine Environmental Protection Technology Co ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-03-31
Anticipated expiration: 2029-07-04

Abstract

The utility model belongs to the technical field of a spectrophotometer, in particular to a spectrophotometer rapid sample feeding device, which comprises a sample feeding cleaning device and a sample feeding device; the sample adding and cleaning device comprises a cleaning peristaltic pump and a sample adding peristaltic pump which are arranged in parallel, and a cleaning hose and a sample adding hose are connected to the cleaning peristaltic pump and the sample adding peristaltic pump respectively; the sample feeding device is provided with a sample frame arranged on one side of the sample feeding and cleaning device, a cuvette and at least one sample cuvette are placed on the sample frame, and a sample cuvette plug is fixed at the top end of the inner wall of the cuvette; the utility model discloses a cell and sample ware are installed on the sample frame according to preset position, accomplish the dropwise add and treat directly put into spectrophotometer behind the liquid of surveying in, reduce and put into spectrophotometer consuming time, adopt two peristaltic pumps to wash the application of sample simultaneously, operation process and cell and the outer surface contactless of washing ware prevent fingerprint adhesion and printing opacity face wearing and tearing, keep the precision that detects.

Description

Quick sampling device of spectrophotometer

Technical Field

The utility model relates to a spectrophotometer technical field especially relates to a spectrophotometer fast sampling device.

Background

In the field of analytical testing, a spectrophotometer, as an optical testing device, is often used to measure the content of each element in an analytical sample.

The technical problems in the prior art are as follows:

1. when the spectrophotometer detects and samples, the cuvette and the sample vessel need to be manually held, liquid to be detected is dripped into the cuvette and the sample vessel, fingerprints are adhered to the outer surfaces of the cuvette and the sample vessel when the cuvette and the sample vessel are contacted by hands, abrasion occurs on the outer surfaces of the cuvette and the sample vessel due to friction when the cuvette and the sample vessel are held for a long time, the light transmittance is reduced, and the detection precision is influenced;

2. on cell and the rack of sample ware for putting into the spectrophotometer alone, and the locating place needs to be fixed, and the process of putting into is loaded down with trivial details, influences the detection progress.

In order to solve the problems, the application provides a spectrophotometer rapid sampling device.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem that exists among the background art, the utility model provides a spectrophotometer advances a kind device fast, the utility model discloses a cell and sample ware are installed on the sample frame according to preset position, accomplish the dropwise add treat directly put into the spectrophotometer behind the liquid, reduce to put into the consuming time of spectrophotometer, adopt two peristaltic pumps to wash the application of sample simultaneously, operation process and cell and the surface of washing ware contactless prevent fingerprint adhesion and printing opacity face wearing and tearing, keep the precision that detects.

(II) technical scheme

In order to solve the problems, the utility model provides a spectrophotometer rapid sample feeding device, which comprises a sample feeding cleaning device and a sample feeding device;

the sample adding and cleaning device comprises a cleaning peristaltic pump and a sample adding peristaltic pump which are arranged in parallel, and a cleaning hose and a sample adding hose are connected to the cleaning peristaltic pump and the sample adding peristaltic pump respectively;

be provided with on the sampling device and install the sample frame of application of sample belt cleaning device one side, place a cell and the sample ware that is one at least on the sample frame, the inner wall top of cell is fixed with the sample ware stopper, the through-hole has been seted up to the inner wall of sample ware stopper, the top of sample ware stopper is provided with the top cap, the bottom of top cap seted up with through-hole assorted through-hole bolt, the top cap with pass through between the sample ware stopper the through-hole with the through-hole bolt is pegged graft fixedly.

Preferably, the inner diameter of the through hole is larger than the sum of the inner diameters of the cleaning hose and the sample feeding hose.

Preferably, the cuvette and the sample cuvette are identical in structure.

Preferably, a light-gathering plate is arranged at the interval between the cuvette and the sample cuvette.

Preferably, the end face of the cuvette, which is close to the light-gathering plate, is a frosted surface, and the rest end face is a light-transmitting surface.

Preferably, the upper surface of the sample holder is provided with a dish placing groove matched with the cuvette and the sample dish in specification, and a clamping piece is fixed inside the dish placing groove.

Preferably, a pull ring is mounted on the top of the top cover.

The above technical scheme of the utility model has following profitable technological effect: the utility model discloses a cell and sample ware are installed on the sample frame according to preset position, accomplish the dropwise add and treat directly put into spectrophotometer behind the liquid of surveying in, reduce and put into spectrophotometer consuming time, adopt two peristaltic pumps to wash the application of sample simultaneously, operation process and cell and the outer surface contactless of washing ware prevent fingerprint adhesion and printing opacity face wearing and tearing, keep the precision that detects.

Drawings

Fig. 1 is the utility model provides a spectrophotometer rapid sampling device's overall structure schematic diagram.

Fig. 2 is the utility model provides a sampling device structure schematic diagram among the quick sampling device of spectrophotometer.

Fig. 3 is the utility model provides a cell structure schematic diagram among the spectrophotometer rapid sampling device.

Fig. 4 is the utility model provides a A structure enlarged schematic diagram in the spectrophotometer rapid sampling device.

Fig. 5 is the utility model provides a sample frame bottom structure schematic diagram among the spectrophotometer rapid sampling device.

Reference numerals:

1. a sample adding and cleaning device; 11. cleaning the peristaltic pump; 12. cleaning the hose; 13. a sample adding peristaltic pump; 14. a sample adding hose; 2. a sample introduction device; 21. a sample holder; 211. placing a dish groove; 212. a clamping member; 22. a light-gathering plate; 23. a cuvette; 24. a sample vessel; 25. a top cover; 26. a sample vessel plug; 27. a through hole; 28. and (6) plugging the through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-4, the rapid sample introduction device for a spectrophotometer provided by the present invention comprises a sample introduction cleaning device 1 and a sample introduction device 2;

the sample adding and cleaning device 1 comprises a cleaning peristaltic pump 11 and a sample adding peristaltic pump 13 which are arranged in parallel, and a cleaning hose 12 and a sample adding hose 14 are respectively connected to the cleaning peristaltic pump 11 and the sample adding peristaltic pump 13;

the sample feeding device 2 is provided with a sample holder 21 arranged on one side of the sample feeding cleaning device 1, the sample holder 21 is provided with a cuvette 23 and at least one sample cuvette 24, a light gathering plate 22 is arranged at the interval between the cuvette 23 and the sample cuvette 24, the light gathering plate 22 is an inclined plate and gathers incident light in the cuvette 23 or the sample cuvette 24, the top end of the inner wall of the cuvette 23 is fixed with a sample cuvette plug 26, the inner wall of the sample cuvette plug 26 is provided with a through hole 27, the inner diameter of the through hole 27 is larger than the sum of the inner diameters of the cleaning hose 12 and the sample feeding hose 14, the through hole 27 is used for placing the cleaning hose drop 12 and adding the cleaning liquid sample, or the sample adding hose 14 is put in and sample liquid is dripped, the top cover 25 is arranged above the sample vessel plug 26, the bottom of the top cover 25 is provided with a through hole bolt 28 matched with the through hole 27, and the top cover 25 and the sample vessel plug 26 are inserted and fixed through the through hole 27 and the through hole bolt 28.

It should be noted that: the cuvette 23 and the sample cuvette 24 have the same structure, the cuvette 23 is used for placing base liquid, and the sample cuvette 24 is used for placing sample liquid which is uniformly mixed in different proportions.

In an alternative embodiment, the end surface of the cuvette 23 close to the light-gathering plate 22 is a frosted surface, and the rest end surface is a light-transmitting surface, so that when the cuvette 23 is taken out, the frosted surface can be held to be taken up, and the light-transmitting surface is prevented from being adhered with fingerprints or being abraded.

In an alternative embodiment, the top of the top cover 25 is provided with a pull ring by which the top cover 25 can be lifted for disassembly.

As an example: one cuvette 23 and one sample cuvette 24 are used for the detection.

The utility model discloses in: the top cover 25 at the top of the cuvette 23 and the sample cuvette 24 is removed, the through hole 27 in the sample cuvette plug 26 is exposed, and the cleaning hose 12 and the sample adding hose 14 are arranged in the cuvette 23 and the sample cuvette 24;

a cleaning peristaltic pump 11 connected with a cleaning liquid tank is used for putting cleaning liquid into the cuvette 23 and the sample vessel 24 through a cleaning hose 12 for cleaning, pouring the cleaning liquid to the sample rack 21 after cleaning, and discharging residual liquid in the cuvette 23 and the sample vessel 24;

respectively adding base liquid and sample liquid into the cuvette 23 and the sample vessel 24 through a sample adding hose 14 of the sample adding peristaltic pump 13, re-installing the top cover 25 after the addition is finished, and placing a through hole bolt 28 at the bottom of the top cover into a through hole in a sample vessel plug 26 for fixing;

the prepared sample holder 21 is directly placed into a spectrophotometer for detection.

As shown in fig. 5, a dish placing groove 211 matched with the standards of the cuvette 23 and the sample dish 24 is formed in the upper surface of the sample holder 21, and a clamping member 212 is fixed inside the dish placing groove 211.

It should be noted that the cuvette 23 and the sample cuvette 24 are installed in the cuvette holding groove 211 according to predetermined positions, and the cuvette 23 and the sample cuvette 24 are fixed by the holding member 212, so that the cuvette 23 and the sample cuvette 24 are integrally fixed, and the spectrophotometer is conveniently placed in.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A spectrophotometer rapid sample introduction device is characterized by comprising a sample introduction cleaning device (1) and a sample introduction device (2);

the sample adding and cleaning device (1) comprises a cleaning peristaltic pump (11) and a sample adding peristaltic pump (13) which are arranged in parallel, a cleaning hose (12) and a sample adding hose (14) are respectively connected to the cleaning peristaltic pump (11) and the sample adding peristaltic pump (13),

be provided with on sampling device (2) and install sample frame (21) of application of sample belt cleaning device (1) one side, placed a cell (23) and sample ware (24) that are one at least on sample frame (21), the inner wall top of cell (23) is fixed with sample ware stopper (26), through-hole (27) have been seted up to the inner wall of sample ware stopper (26), the top of sample ware stopper (26) is provided with top cap (25), the bottom of top cap (25) seted up with through-hole (27) assorted through-hole bolt (28), top cap (25) with pass through-hole (27) between sample ware stopper (26) through-hole (27) with through-hole bolt (28) are pegged graft fixedly.

2. The spectrophotometer rapid sample introduction device according to claim 1, wherein an inner diameter of the through hole (27) is larger than a sum of inner diameters of the washing hose (12) and the sample introduction hose (14).

3. The spectrophotometer bolus device of claim 1, wherein the cuvette (23) and the sample cuvette (24) are identical in construction.

4. Spectrophotometer bolus device according to claim 1, wherein a light concentrating plate (22) is arranged at the spacing between the cuvette (23) and the sample cuvette (24).

5. The spectrophotometer fast sampling device according to claim 4, characterized in that the end face of the cuvette (23) close to the light-gathering plate (22) is a frosted face, and the rest end face is a light-transmitting face.

6. The spectrophotometer rapid sampling device according to claim 1, wherein a dish placing groove (211) matched with the specifications of the cuvette (23) and the sample dish (24) is formed in the upper surface of the sample holder (21), and a clamping piece (212) is fixed inside the dish placing groove (211).

7. The spectrophotometer rapid sampling device according to claim 1, wherein a pull ring is installed on the top of the top cover (25).