CN205869001U - Buret belt cleaning device - Google Patents

Abstract

The utility model relates to a burette cleaning device, which belongs to the field of chemical experiment and instrument analysis. It mainly includes a reagent bottle and an iron stand fixed on the worktable, and a waste liquid bottle located under the side of the worktable; above the reagent bottle, a liquid connection tube and a gas connection with a rubber blower are sealed. tube and a liquid injection port with a sealed cover; one end of the liquid connection tube is deep under the liquid level of the chromic acid lotion in the reagent bottle, and the other end is protruding from the working table and vertically downward, with a fastenable burette nozzle The tip of the fixing nut; the open end of the gas connecting pipe is located above the liquid level of the chromic acid lotion in the reagent bottle; Holder B for the burette. The utility model has the beneficial effects that: the equipment is simple and can be installed and used in general laboratories; the process of washing the burette is safe and reliable, the pouring amount can be controlled, the operation is convenient, and the application is wide.

Description

Burette cleaning device

technical field

The utility model relates to a burette cleaning device, which belongs to the field of chemical experiment and instrument analysis.

Background technique

At present, burettes are widely used in experimental analysis, and it is a difficult problem to clean oily burettes. The commonly used method for cleaning the oily burette is: save the chromic acid lotion in the reagent bottle, and the operator directly pours the solution in the reagent bottle into the burette. Because the burette has a relatively small caliber, the chromic acid lotion will splash out of the burette, corrode the skin and clothes, or corrode the sewer pipe. It is difficult for the operator to control the amount poured in. If the oil pollution is serious, repeated operations are required, which is time-consuming. At present, there is no equipment for cleaning oily burettes on the market.

Utility model content

The utility model provides a method for deficiencies.

The technical scheme that the utility model solves the problems of the technologies described above is as follows:

A burette cleaning device, including a reagent bottle and an iron stand fixed on the worktable, and a waste liquid bottle arranged under the side of the worktable; above the reagent bottle, a liquid connection pipe, a blower with a rubber head The gas connecting tube of the balloon and the liquid injection port with a sealed cover; one end of the liquid connecting tube goes deep into the liquid level of the chromic acid lotion in the reagent bottle, and the other end protrudes from the working table and is vertically downward, with a tightenable The tip of the fixed nut of the fixed burette nozzle; the open end of the gas connecting pipe is located above the liquid level of the chromic acid lotion in the reagent bottle; a fixing clip that can hold the end of the liquid connecting pipe is provided on the iron stand A and the clamp B that can hold the burette.

Compared with the prior art, the utility model has the beneficial effects that the equipment is simple and can be installed and used in general laboratories. The process of washing the burette is safe and reliable, effectively preventing the chromic acid lotion from splashing out of the burette to corrode the skin, clothes or sewer pipes, the pouring amount can be easily controlled, the operation is convenient, and it is widely used.

On the basis of the above technical solutions, the utility model can also be improved as follows.

Further, a rubber sealing plug is provided at the connection between the liquid connection tube and the reagent bottle.

The beneficial effect of adopting the above further solution is: increase the sealing performance of the reagent bottle.

Further, a flow control valve is provided on the gas connecting pipe below the rubber blower.

The beneficial effect of adopting the above further solution is that the pouring amount and the cleaning speed can be easily controlled, saving the chromic acid lotion and improving the safety of the operation.

Description of drawings

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

In the figure, 1. Reagent bottle; 2. Liquid injection port; 3. Rubber sealing plug; 4. Flow control valve; ; 9, fixed clip A; 10, fixed nut; 11, fixed clip B; 12, burette; 13, waste liquid bottle; 14, work surface.

detailed description

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

A burette cleaning device, comprising a reagent bottle 1 and an iron stand 8 fixedly arranged on the worktable 14, and a waste liquid bottle 13 arranged under the side of the worktable 14; a liquid connection is arranged above the reagent bottle 1 Pipe 7, the gas connection pipe 6 with the rubber head blower 5 and the liquid injection port 2 with the sealing cover, the connection between the liquid connection pipe 7 and the reagent bottle 1 is provided with a rubber sealing plug 3, and the rubber head is blown The gas connection pipe 6 below the balloon 5 is provided with a flow control valve 4; one end of the liquid connection pipe 7 goes deep into the liquid level of the chromic acid lotion in the reagent bottle 1, and the other end is a vertically downward part protruding from the work surface 14. , have the tip of the fixed nut 10 that can tighten the burette 12 nozzles; the open end of the gas connecting pipe 6 is located above the liquid level of the chromic acid lotion in the reagent bottle 1; The fixing clip A 9 at the end of the liquid connecting pipe 7 and the fixing clip B 11 that can hold the burette 12 can be clamped.

When the utility model is made, the reagent bottle 1 storing the chromic acid lotion has a diameter of 110mm and a height of 210mm, and the material is glass; the diameter of the liquid injection port 2 is 15mm, and the rubber sealing plug 3 is 24mm high and 44mm in diameter; the gas connection The outer diameter of the tube 6 is 12mm, the inner diameter is 10mm, and the length is 1240mm. The material is a Teflon tube; when the rubber head blower 5 is blown up, the volume is 120mL; 11 can move up and down along the iron frame platform 8; the outer diameter of the liquid connecting pipe 7 is 12mm, and the inner diameter is 10mm; the fixed nut 10 is long 20mm, the outer diameter is 15mm, and the inner diameter is 13mm.

The using method of the present utility model:

A. Before cleaning, pour the prepared chromic acid lotion into the reagent bottle 1 from the liquid injection port 2, and the solution should not exceed 2/3 of the volume of the reagent bottle 1.

B. If the basic burette 12 is cleaned, the rubber tube is removed, and the upper opening of the burette 12 is fixed with the fixed nut 10;

C. Open the flow control valve 4, squeeze the rubber head and blow the balloon 5 by hand, the pressure in the reagent bottle 1 increases, and the chromic acid lotion enters the burette 12 to be washed through the liquid connection pipe 7, and finally flows into the waste liquid bottle 13 to be recovered . Observe the burette 12, if there is oil stain, then repeat the operation until it is cleaned, and finally close the flow control valve 4 to end the operation.

D. The chromic acid lotion recovered in the waste liquid bottle 13 can be poured into the reagent bottle 1 through the liquid injection port 2 for repeated use.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (3)

1. a burette cleaning device is characterized in that: comprise the reagent bottle (1) that is fixedly located on the work surface (14) and the iron frame platform (8), and be located at the waste liquid bottle (14) side below the work surface 13); above the reagent bottle (1), a liquid connection pipe (7), a gas connection pipe (6) with a rubber blower (5) and a liquid injection port (2) with a sealing cap are sealed above the reagent bottle (1); One end of the liquid connecting pipe (7) goes deep under the liquid level of the chromic acid lotion in the reagent bottle (1), and the other end protrudes from the working table (14) and is vertically downward with a fastenable burette (12). The tip of the fixed nut (10) of the nozzle; the open end of the gas connecting pipe (6) is positioned above the liquid level of the chromic acid lotion in the reagent bottle (1); The fixed clamp A (9) that can clamp the end of the liquid connecting pipe (7) and the fixed clamp B (11) that can clamp the burette (12) can be clamped. 2. The burette cleaning device according to claim 1, characterized in that: a rubber sealing plug (3) is provided at the connection between the liquid connecting pipe (7) and the reagent bottle (1). 3. The burette cleaning device according to claim 1 or 2, characterized in that: a flow control valve (4) is provided on the gas connecting pipe (6) below the rubber blower (5).