CN2422645Y - Acid-base universal burette - Google Patents
Acid-base universal burette Download PDFInfo
- Publication number
- CN2422645Y CN2422645Y CN 00214172 CN00214172U CN2422645Y CN 2422645 Y CN2422645 Y CN 2422645Y CN 00214172 CN00214172 CN 00214172 CN 00214172 U CN00214172 U CN 00214172U CN 2422645 Y CN2422645 Y CN 2422645Y
- Authority
- CN
- China
- Prior art keywords
- acid
- burette
- emulsion tube
- diverter valve
- buret
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a burette which an acid and alkali corrosion resistance a tube body with a cone-shaped lower end. The upper end of the tube body is sheathed with a steeling emulsion tube in a sealing mode, and the end of the steeling emulsion tube is connected with a three-way conversion valve. One of the other two through ends of the three-way conversion valve is connected with a rubber ball in a sealing mode, and the other end is connected with an air flow control valve. The utility model not only can be used for acid and alkali, but also has the advantage that when used, the burette is not directly contacted with normal fluid with strong corrosiveness, so that the burette is convenient for protection.
Description
The utility model relates to a kind of buret.
At present, buret is widely used in the physico-chemical analysis of industries such as chemical industry, medicine, usually, buret is divided into two kinds of acid buret and base burets, acid buret adopts the outflow of the glass knob controlling titer that is arranged on the body bottom, base buret adopts in the emulsion tube and establishes the outflow that glass bead comes control criterion liquid, the deficiency that it is common: 1, two kinds of burets can not be general mutually; 2, its control section leakiness acid or leakage alkali, careless slightly meeting causes the injury to human body, is not easy to protection.
The purpose of this utility model provides the general buret of a kind of soda acid of being convenient to protect.
The general buret of this soda acid comprises the body that has volume scale and acid-alkali-corrosive-resisting, it is conical that the lower end part of body is, its design feature is to be connected to the tempering emulsion tube at the upper end of body sealing shroud, the end of tempering emulsion tube is connected to three-way diverter valve, other two go sides of three-way diverter valve, end sealing wherein is connected to rubber sphere, and the other end is connected to control damper.
During use, earlier the conical end of body is inserted in the titer, and forwarded three-way diverter valve to gear that rubber sphere communicates with control damper, be i.e. the exhaust gear, open control damper, the extruding rubber sphere is discharged the air in the rubber sphere, then the closed gas flow operation valve, and forward three-way diverter valve to gear that the tempering emulsion tube communicates with rubber sphere, be the imbibition gear, unclamp rubber sphere, in the process that rubber sphere resiles, titer is sucked in the body by negative pressure.During titration, earlier forward three-way diverter valve to gear that the tempering emulsion tube communicates with control damper, it is the titration gear, regulate the opening degree of control damper, promptly control what of air inflow, just can make the titer that sucks in the body drop by drop flow out the titration sample from the cone end by desired rate of titration.
From the above mentioned, having corrosive acidity or alkaline titer only remains in the body of acid-alkali-corrosive-resisting, tempering emulsion tube, three-way diverter valve and control damper do not contact with titer, therefore buret described in the utility model has realized that soda acid is general on the one hand, on the other hand in using adjustment process, finger does not directly contact titer, only three-way diverter valve, rubber ball and the control damper of the no titer of contact are convenient to protection, do not damage human body.
Accompanying drawing shows the embodiment of the general buret of this soda acid, wherein Fig. 1 is the structural representation of the general buret of soda acid, and Fig. 2, Fig. 3 and Fig. 4 are three kinds of gear synoptic diagram of three-way diverter valve, and wherein Fig. 2 is the exhaust gear, Fig. 3 is the imbibition gear, and Fig. 4 is the titration gear.
In the present embodiment, the general buret of soda acid comprises the body 1 that is contained on the support body 6, body 1 has volume scale and acid-alkali-corrosive-resisting, it is conical that the lower end part of body 1 is, and sealing shroud is connected to tempering emulsion tube 2 in the upper end of body 1, and the end of tempering emulsion tube 2 is connected to three-way diverter valve 3, other two go sides of three-way diverter valve 3, end sealing wherein is connected to rubber sphere 4, and the other end is connected to control damper 5, and three-way diverter valve 3 and control damper 5 are selected general part for use.
Claims (1)
- The general buret of a kind of soda acid, comprise the body (1) that has volume scale and acid-alkali-corrosive-resisting, it is conical that the lower end part of body (1) is, it is characterized in that being connected to tempering emulsion tube (2) at the upper end sealing shroud of body (1), the end of tempering emulsion tube (2) is connected to three-way diverter valve (3), other two go sides of three-way diverter valve (3), wherein end sealing is connected to rubber sphere (4), and the other end is connected to control damper (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00214172 CN2422645Y (en) | 2000-04-07 | 2000-04-07 | Acid-base universal burette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00214172 CN2422645Y (en) | 2000-04-07 | 2000-04-07 | Acid-base universal burette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2422645Y true CN2422645Y (en) | 2001-03-07 |
Family
ID=33580339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00214172 Expired - Fee Related CN2422645Y (en) | 2000-04-07 | 2000-04-07 | Acid-base universal burette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2422645Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105126943A (en) * | 2014-06-09 | 2015-12-09 | 江玉 | Novel pipette |
-
2000
- 2000-04-07 CN CN 00214172 patent/CN2422645Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105126943A (en) * | 2014-06-09 | 2015-12-09 | 江玉 | Novel pipette |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |