CN204202963U - The automatic controlled filter of a kind of use for laboratory collects the combination unit of liquid - Google Patents

Abstract

The utility model relates to a combined device for automatically controlling and filtering collected liquid in a laboratory. The device includes a support frame, a funnel, a drainage chute, a sample collection pipe and a waste liquid tank. The funnel is arranged on the upper part of the support frame to drain The chute is arranged below the funnel, and a cylinder is connected to one side of the drainage chute to push the drainage chute. At the bottom right of the sample collection pipe; the upper part of the sample collection pipe is provided with a liquid level sensor, the liquid level sensor is connected with a controller, the controller is connected with a solenoid valve, and the solenoid valve is provided between the air source and the cylinder. The beneficial effects of the utility model are as follows: 1. The operation of removing waste liquid is centralized and simplified. 2. The filtering operation is centralized and simplified. 3. Economic benefits and work efficiency. 4. Automatically control the liquid level height.

Description

A combined device for automatically controlling and filtering collected liquid in a laboratory

technical field

The utility model belongs to the field of chemical detection, in particular to a laboratory-used combination device for automatically controlling and filtering collected liquid.

Background technique

The flow analyzer supports the detection of multiple channels and can measure a large number of parameters at the same time. The analysis is fast and the sensitivity is high. It is widely used in water quality, tobacco, food analysis and other fields. Especially in the detection of the six routine chemical indicators of tobacco, the sample needs to be pre-treated, extracted and shaken, and the first few drops of the extract are discarded, filtered into the waste liquid bottle, and then transferred to a new Erlenmeyer flask until the filtration is complete, and finally the filtrate is poured into the In the sample collection tube, the liquid level must be kept consistent until the instrument collects and detects it.

When the sample volume is large, due to the small sample collection tubes, it is difficult to control the liquid level of all collection tubes to be consistent by manual operation, which is time-consuming and laborious. The number of conical flasks used and the number of cleanings will also double, and each sample needs to filter the waste liquid Transfer again. After the solution is completely filtered, pour it into each filtrate collection tube respectively. There are many steps and repeated operations. It is impossible to achieve continuous filtration of many samples at the same time. In addition, the sample powder accumulates at the bottom of the funnel in the later stage, and the time for complete filtration of the filtrate will be very long. , can not achieve the purpose of rapid sample processing. There is currently no commercially available filtration device that can simplify many of the problems that arise from the above.

Contents of the invention

In order to solve the above-mentioned technical problems, the purpose of the invention of this utility model is to provide a combined device for automatically controlling and filtering the collected liquid in the laboratory. Its structure is relatively simple, and it is automatically controlled. Each sample tube is collected, and the automatic control of the filtrate volume is realized.

The utility model solves the above problems through the following technical solutions:

A combined device for automatically controlling and filtering collected liquid in a laboratory, the device includes a support frame, a funnel, a drainage chute, a sample collection tube and a waste liquid tank, the funnel is arranged on the upper part of the support frame, and the drainage chute is arranged on the The bottom of the funnel is connected with a cylinder on one side of the drainage chute to push the drainage chute, and the sample collection tube is arranged directly opposite the funnel under the drainage chute, and the waste liquid tank is arranged on the sample collection tube The lower right side of the sample collection pipe is provided with a liquid level sensor, the liquid level sensor is connected with a controller, the controller is connected with a solenoid valve, and the solenoid valve is arranged between the air source and the cylinder.

Preferably, the bottom of the support frame is provided with feet.

The beneficial effects of the utility model are as follows:

1. The operation of removing waste liquid is centralized and simplified. The waste liquid of all samples is discharged with the drainage chute, and the controller controls all the cylinders to move the piston retracted horizontally, so that the filtrate drips into each collection tube, which simplifies the repeated steps of filtering the waste liquid and then transferring each sample.

2. The filtering operation is centralized and simplified. Each sample filtrate is directly filtered into the collection tube, without the need to filter completely to the Erlenmeyer flask and then transfer to the collection tube for multiple operations. In the original step, the sample powder accumulated at the bottom of the funnel in the later stage, so the complete filtration time of the filtrate will be slower. It is very long, and the improvement greatly improves the speed and flexibility of processing samples.

3. Economic benefits and work efficiency. After the above step 2 is improved, the number of Erlenmeyer flasks used and the number of times of cleaning will be reduced by one time, and the economic benefits and work efficiency brought thereby will be improved to a certain extent.

4. Automatically control the liquid level. A liquid level sensor automatically controls the liquid level of a sample collection tube, so that the liquid level in all the collection tubes can be kept consistent. Because the sample collection tube is small, it is difficult to adjust the liquid level of all the collection tubes due to manual operation. Control factors, automatic control simplifies operation, saves time and effort.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a structural schematic diagram of the combined arrangement of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, specific embodiment of the present utility model is described in detail.

As shown in Figure 1, a combined device for automatically controlling and filtering collected liquid in a laboratory, the device includes a support frame 1, a funnel 2, a drainage chute 3, a sample collection tube 5 and a waste liquid tank 6, and the funnel 2 Set on the upper part of the support frame 1, the drainage chute 3 is arranged below the funnel 2, and a cylinder 4 is connected to one side of the drainage chute 3 to push the drainage chute 3, and the bottom of the drainage chute 3 is facing the funnel 2 Set the sample collection tube 5, the waste liquid tank 6 is set on the lower right side of the sample collection tube 5; the upper part of the sample collection tube 5 is provided with a liquid level sensor 7, and the liquid level sensor 7 is connected with a control The controller 8 is connected with a solenoid valve 9, and the solenoid valve 9 is arranged between the air source 10 and the cylinder 4. Supporting feet are also provided at the bottom of the support frame 1 .

The working principle of the utility model is that the extraction liquid is poured into the funnel 2 for filtration, and the first few drops are discharged into the waste liquid tank 6 along with the drainage chute 3. The tank 3 leaves the original position, and the filtrate continues to drip into the sample collection tube 5. When the liquid level reaches the sensing position of the liquid level sensor 7, the signal is transmitted to the controller 8, and the controller 8 controls the cylinder 4 to move the piston through the solenoid valve 9 And return to the original position, and finally the remaining filtrate is discharged into the waste liquid tank 6 along with the drainage chute 3.

As shown in Figure 2, the utility model can also be provided with a combined arrangement of 2 rows and 5 columns with a total of 10 control units arranged.

Claims (2)

1. A combined device for automatically controlling and filtering the collected liquid in a laboratory, characterized in that: the device includes a support frame, a funnel, a drainage chute, a sample collection tube and a waste liquid tank, and the funnel is arranged on the top of the support frame , the drainage chute is arranged below the funnel, and a cylinder is connected to one side of the drainage chute to push the drainage chute, and the sample collection tube is arranged directly opposite the funnel under the drainage chute, and the waste liquid The tank is set at the bottom right of the sample collection tube; the upper part of the sample collection tube is provided with a liquid level sensor, the liquid level sensor is connected with a controller, the controller is connected with a solenoid valve, and the solenoid valve is set between the air source and the cylinder . 2. A combination device for automatically controlling and filtering collected liquid in a laboratory according to claim 1, characterized in that: the bottom of the support frame is provided with a leg.