CN203324242U - Acid-base type integrated burette - Google Patents
Acid-base type integrated burette Download PDFInfo
- Publication number
- CN203324242U CN203324242U CN2013204026228U CN201320402622U CN203324242U CN 203324242 U CN203324242 U CN 203324242U CN 2013204026228 U CN2013204026228 U CN 2013204026228U CN 201320402622 U CN201320402622 U CN 201320402622U CN 203324242 U CN203324242 U CN 203324242U
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- CN
- China
- Prior art keywords
- acid
- core bar
- liquid
- valve rod
- burette
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- 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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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model discloses an acid-base type integrated burette which comprises an outer cylinder and a core rod, wherein the lower end of the outer cylinder is provided with a pointed nozzle, the lower end of the core rod is connected with a sealing pad. A valve rod is arranged at the upper end of the core rod. An amount of liquid enters the outer cylinder by pulling the core rod, and liquid titration and titration volume reading are completed by controlling the valve rod and the core rod to be closed. According to the acid-base type integrated burette, in the acid-base type liquid titration process, the liquid is only in contact with the outer cylinder and the pointed nozzle, the sealing pad and the valve rod are made of teflon materials, and the acid-base resistance property and the oxidation resistance property are achieved. Therefore, the acid-base type integrated burette can be used in acid liquid and base liquid, two functions are achieved through the one burette, the service life is prolonged, the complex technology in the production process is eliminated, and the test cost is saved.
Description
Technical field
The utility model relates to a kind of instrument that measures liquid, specifically a kind of soda acid formula one buret.
Background technology
Buret is divided into base buret and acid buret.The former is for measuring the liquid reagent that glass tube is had to erosion action; The latter is for measuring the liquid that rubber is had to erosion action.Traditional soda acid formula buret structure difference, so base buret and acid buret can not be used mutually.
Summary of the invention
Soda acid formula one buret of the present utility model, the problem of solution is the titration that can directly apply to acid and alkali formula liquid.
The technical solution adopted in the utility model is: a kind of soda acid formula one buret, and lower end is with the urceolus of sharp mouth, the core bar that lower end connects sealing gasket; Core bar axially has through hole; The projection of sealing gasket shape is arranged at the top of core bar; There is open-work radially the below that the core bar upper end is positioned at projection, and open-work is equipped with the valve rod that can rotate in open-work, and the valve rod center-diameter is to duct is arranged, through-hole aperture in the same size and the position consistency of its pore size and core bar; The through hole of core bar is connected with the lower lumen of urceolus; Sealing gasket and valve rod adopt polytetrafluoroethylmaterial material to make.
Soda acid formula one buret of the present utility model, described core bar is cylindrical.
Soda acid formula one buret of the present utility model, described valve rod xsect is "T"-shaped.
The beneficial effects of the utility model are: the utility model soda acid formula one buret is in soda acid formula liquid titration process, liquid only contacts with sharp mouth with urceolus, sealing gasket and valve rod adopt polytetrafluoroethylplastic plastic to make, there is resistance to acids and bases and inoxidizability, acid and akaline liquid can one manage dual-purpose, save experimental cost, improved serviceable life.
The accompanying drawing explanation
Fig. 1 means the structural representation of soda acid formula one buret.
Fig. 2 means the stem structure schematic diagram of soda acid formula one buret.
In figure: 1 core bar, 2 valve rods, 3 sealing gaskets, 4 scales, 5 urceolus, 6 sharp mouths, 7 ducts, 8 through holes, 9 open-works, 10 projections.
Embodiment
Below in conjunction with accompanying drawing 1-2 and embodiment, the utility model is made to specific description.
As depicted in figs. 1 and 2, a kind of soda acid formula one buret, comprise that lower end is connected the core bar 1 of sealing gasket 3 with lower end with the urceolus 5 of sharp mouth 6; Core bar is cylindrical, and diameter is 1 centimetre; Core bar 1 axially has through hole 8, and through hole 8 diameters are 3 millimeters; The projection 10 of sealing gasket 3 shapes is arranged at the top of core bar 1; There is open-work 9 radially the below that core bar 1 upper end is positioned at projection 10, open-work 9 diameter are 5 millimeters, xsect is "T"-shaped valve rod 2 and embeds in the open-work 9 of core bar 1, valve rod 2 center-diameters are to duct 7 is arranged, the diameter in its duct 7 is 3 millimeters, the position consistency of duct 7 and through hole 8, by the closure of rotary valve rod 1 control duct 7 and through hole 8; The through hole 8 of core bar 1 is connected with the lower lumen of urceolus 5; Sealing gasket 3 and valve rod 2 adopt polytetrafluoroethylmaterial material to make.The outer wall of urceolus indicates scale, and from top to bottom, reading starts to increase gradually from zero graduation.
Before the liquid titration, rotary valve rod 2, by the aperture closure of the aperture of valve rod 2 and core bar 1.Core bar 1 is shifted onto to the bottom of urceolus 5.Then draw core bar 1 outside, will draw quantitative liquid in urceolus 5.When titration, control speed and the capacity of titration by rotary valve rod 2, read the scale 4 on urceolus, complete titration.
Claims (3)
1. a soda acid formula one buret, comprise that lower end is with the urceolus (5) of sharp mouth (6), the core bar (1) that lower end connects sealing gasket (3); It is characterized in that: core bar (1) axially has through hole (8); The projection (10) of sealing gasket (3) shape is arranged at the top of core bar (1); There is open-work (9) radially the below that core bar (1) upper end is positioned at projection (10), open-work (9) is equipped with the valve rod (2) that can rotate in open-work (9), valve rod (2) center-diameter is to duct (7) is arranged, its pore size and position consistency consistent with through hole (8) pore size of core bar (1); The through hole (8) of core bar (1) is connected with the lower lumen of urceolus (5); Sealing gasket (3) and valve rod (2) adopt polytetrafluoroethylmaterial material to make.
2. soda acid formula one buret according to claim 1 is characterized in that: described core bar (1) is for cylindrical.
3. soda acid formula one buret according to claim 1, it is characterized in that: described valve rod (2) xsect is "T"-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204026228U CN203324242U (en) | 2013-07-08 | 2013-07-08 | Acid-base type integrated burette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204026228U CN203324242U (en) | 2013-07-08 | 2013-07-08 | Acid-base type integrated burette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203324242U true CN203324242U (en) | 2013-12-04 |
Family
ID=49663580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204026228U Expired - Fee Related CN203324242U (en) | 2013-07-08 | 2013-07-08 | Acid-base type integrated burette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203324242U (en) |
-
2013
- 2013-07-08 CN CN2013204026228U patent/CN203324242U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20140708 |
|
| EXPY | Termination of patent right or utility model |