CN218444712U

CN218444712U - Liquid sample pretreatment device

Info

Publication number: CN218444712U
Application number: CN202222231790.7U
Authority: CN
Inventors: 王亮; 徐静; 刘以强; 王宏亮; 史殿龙; 何春雷
Original assignee: Qingdao Junray Intelligent Instrument Co Ltd
Current assignee: Qingdao Junray Intelligent Instrument Co Ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-02-03
Anticipated expiration: 2032-08-24

Abstract

The utility model provides a liquid sample pretreatment device, which comprises a host machine, wherein a sample container, a peristaltic pump and a test tube are arranged on the host machine, a liquid inlet of the peristaltic pump is connected with a liquid outlet nozzle of the sample container, and a liquid outlet of the peristaltic pump is connected with the test tube; the sample container comprises a solution bottle and a thin tube, and a liquid level detection module is installed at the position, located on one side of the solution bottle, on the host. The utility model discloses a full-automatic, quick simple and convenient liquid transport and filtration have improved stability and efficiency, have avoided the error because manual operation brings.

Description

Liquid sample pretreatment device

Technical Field

The utility model belongs to the experimental facilities field especially relates to a liquid sample pretreatment device.

Background

At present, in most chemical tests, sample pretreatment is a necessary step, the time spent by the sample pretreatment accounts for about 60% of the total test time, the method is a very important link which is also very time spent, and a plurality of laboratories with modern analytical instruments still use manual work to carry out the sample pretreatment. The error generated by the sample pretreatment is large and reaches up to 30 percent, and if the error is added, the artificial factors account for nearly 50 percent of the error source. In other words, if we can solve the error caused by human factors, the probability of generating analysis error is reduced by half. In order to improve the efficiency and stability of sample treatment, an automatic, rapid, simple, and safe liquid pretreatment apparatus is required.

SUMMERY OF THE UTILITY MODEL

The utility model discloses lack liquid pretreatment equipment among the prior art and get technical problem, provide a liquid sample pretreatment device who has advantage, effect.

In order to achieve the above object, the utility model discloses a technical scheme be:

a liquid sample pretreatment device comprises a host machine, wherein a sample container, a peristaltic pump and a test tube are installed on the host machine, a liquid inlet of the peristaltic pump is connected with a liquid outlet nozzle of the sample container, and a liquid outlet of the peristaltic pump is connected with the test tube; the sample container comprises a solution bottle and a thin tube, and a liquid level detection module is installed at the position, located on one side of the solution bottle, on the host.

Preferably, the tubules include a first tubule, a first bend, a second tubule, a second bend, and a third tubule connected in this order.

Preferably, the first narrow tube, the first bent tube and the second narrow tube contain a filter material therein.

Preferably, the inner diameter of the second tubule is smaller than that of the first tubule, the inner diameter of the third tubule is smaller than that of the second tubule, and the third tubule becomes thinner gradually from top to bottom.

Preferably, the sample container is made of glass.

Preferably, the sample container is mounted on the main frame by a container holder, and a cushion is mounted between the container holder and the sample container.

Preferably, the test tube is installed on the host computer through the test-tube rack, is provided with the cushion between test tube and the test-tube rack.

Preferably, the host is provided with a touch screen.

Preferably, a controller is installed in the host, and the controller is electrically connected with the peristaltic pump, the touch screen and the liquid level detection module.

Preferably, the main machine is also provided with an alarm which is electrically connected with the controller.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

this liquid sample pretreatment device holds liquid sample through the glass container of tapering to through peristaltic pump and controller accurate control liquid delivery volume, can accomplish full-automatic little flow automatic control, realized full-automatic, quick simple and convenient liquid transport and filtration, improved stability and efficiency, avoided because the error that manual operation brought.

Drawings

FIG. 1 is a schematic structural view of a liquid sample pretreatment apparatus according to the present invention;

in the above figures: 1. a host; 2. a sample container; 21. a solution bottle; 22. a first thin tube; 23. a first bend pipe; 24. a second thin tube; 25. a second bend pipe; 26. a third tubule; 27. a liquid outlet nozzle; 28. a container holder; 29. a rubber pad; 3. a peristaltic pump; 4. a test tube; 41. a test tube rack; 5. a liquid level detection module; 6. a touch screen.

Detailed Description

For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Example (b): as shown in figure 1, a liquid sample pretreatment device, including host computer 1, host computer 1 one side is installed and is used for holding the sample container 2, peristaltic pump 3 and the test tube 4 of treating the liquid sample, and the liquid outlet 27 of sample container 2 is connected to the inlet of peristaltic pump 3, and the liquid outlet of peristaltic pump 3 is connected to test tube 4, can be automatically with the liquid transport to in the test tube 4 in the sample container 2 through peristaltic pump 3.

The sample container 2 is a self-made container, and the structure thereof comprises a solution bottle 21 and a thin tube, wherein the caliber of the solution bottle 21 is larger, so that an operator can pour a liquid sample into the solution bottle 21 conveniently. The tubules include a first tubule 22, a first bend 23, a second tubule 24, a second bend 25, and a third tubule 26 connected in sequence, forming an S-shaped structure. The internal diameter of second tubule 24 is less than first tubule 22, and the internal diameter of third tubule 26 is less than second tubule 24, and third tubule 26 from last to down tapering, can prolong the liquid path of flowing through many tubules, control velocity of flow that can be better, and then accurate control liquid flow. The first thin pipe 22, the first bent pipe 23 and the second thin pipe 24 are filled with filter materials, so that liquid can be conveniently filtered.

Sample container 2 adopts the glass material, uses high temperature resistant, corrosion-resistant BPT pump line connection between the liquid outlet 27 of third tubule 26 and the inlet of peristaltic pump 3, also uses BPT pump line connection between the liquid outlet of peristaltic pump 3 and the test tube 4, guarantees that whole device can handle the liquid that has the corrosivity.

And a liquid level detection module 5 is arranged at the position of one side of the solution bottle 21 on the host 1. The liquid level detection module 5 and the self-made glass container are installed according to a certain position requirement, so that the liquid level detection module 5 can detect the lowest liquid level in the glass container.

Sample container 2 passes through container support 28 and installs on host computer 1, test tube 4 passes through test-tube rack 41 and installs on host computer 1, between container support 28 and sample container 2 to and all fill rubber pad 29 between test tube 4 and the test-tube rack 41 and fix, avoid glass device direct contact to the sheet metal component, protect glass container.

The controller is installed in the host 1, a flow control system is integrated in the controller, and the controller is electrically connected with the peristaltic pump 3, the touch screen 6 and the liquid level detection module 5. The touch screen 6 is installed on the main machine 1, information such as flow rate and liquid amount can be displayed in real time through the touch screen 6, and parameters can be set so as to control the flow rate.

The host machine 1 is also provided with an alarm which is electrically connected with the controller, and the alarm can give an alarm in time when the liquid level in the sample container 2 reaches a threshold value.

The operation process of the liquid sample pretreatment device is as follows: first, a solution bottle 21 is filled with deionized water to start a peristaltic pump 3 to clean the container. After the cleaning is finished, the peristaltic pump 3 is closed.

The liquid sample to be pretreated is poured into the solution bottle 21, the liquid level sensing module can detect the liquid level of the glass container, and the alarm can be given in time when the liquid level in the glass container reaches a threshold value. Flow rate and time are set, the peristaltic pump 3 is started, liquid is conveyed to the test tube 4 through the thin tube, and the liquid is filtered by the filtering material at the U-shaped bent tube when flowing through the first bent tube 23, so that full-automatic, quick and simple liquid pretreatment is realized.

The liquid sample pretreatment device can realize full-automatic small-flow automatic control, realize full-automatic, quick and simple liquid conveying and filtering, improve the stability and the efficiency, and avoid errors caused by manual operation.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiments into equivalent variations to apply to other fields, but all those persons do not depart from the technical contents of the present invention, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A liquid sample pretreatment device comprises a host machine, and is characterized in that: the host machine is provided with a sample container, a peristaltic pump and a test tube, a liquid inlet of the peristaltic pump is connected with a liquid outlet nozzle of the sample container, and a liquid outlet of the peristaltic pump is connected with the test tube; the sample container comprises a solution bottle and a thin tube, and a liquid level detection module is installed at the position, located on one side of the solution bottle, on the host.

2. The liquid sample pretreatment apparatus according to claim 1, characterized in that: the tubule includes first tubule, first return bend, second tubule, second return bend and the third tubule that connects gradually.

3. The liquid sample pretreatment apparatus according to claim 2, characterized in that: the first thin pipe, the first bent pipe and the second thin pipe are internally provided with filtering materials.

4. The liquid sample pretreatment apparatus according to claim 2, characterized in that: the internal diameter of second tubule is less than first tubule, and the internal diameter of third tubule is less than the second tubule, and the third tubule is from last to down tapering.

5. The liquid sample pretreatment apparatus according to claim 2, characterized in that: the sample container is made of glass.

6. The liquid sample pretreatment apparatus according to claim 1, characterized in that: the sample container is arranged on the host machine through the container support, and a soft pad is arranged between the container support and the sample container.

7. The liquid sample pretreatment apparatus according to claim 1, characterized in that: the test tube passes through the test-tube rack and installs on the host computer, is provided with the cushion between test tube and the test-tube rack.

8. The liquid sample pretreatment apparatus according to claim 1, characterized in that: and the host is provided with a touch screen.

9. The liquid sample pretreatment apparatus according to claim 8, characterized in that: and a controller is installed in the host, and the controller is electrically connected with the peristaltic pump, the touch screen and the liquid level detection module.

10. The liquid sample pretreatment apparatus according to claim 9, characterized in that: the host is also provided with an alarm which is electrically connected with the controller.