CN204142695U - U-shaped buret - Google Patents
U-shaped buret Download PDFInfo
- Publication number
- CN204142695U CN204142695U CN201420640714.4U CN201420640714U CN204142695U CN 204142695 U CN204142695 U CN 204142695U CN 201420640714 U CN201420640714 U CN 201420640714U CN 204142695 U CN204142695 U CN 204142695U
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- titration
- tube
- buret
- scale
- shaped
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Abstract
The utility model discloses a kind of U-shaped buret, described buret body is U-shaped, wherein one end is liquid storage pipe, the other end is titration graduated tube, described titration graduated tube upper end is bimetallic tube, inner tube outer surface is provided with scale and scale numeral, titration graduated tube lower end separates two arms by interior pipe, be respectively titration arm and connecting branch, titration arm lower end is provided with outer grinding port, ground in the upper end connecting acid water dropper or alkali formula water dropper is provided with and matches with outer grinding port, connecting branch connects liquid storage pipe by connecting valve.The caliber of liquid storage pipe of the present utility model is comparatively thick, be easy to add want the liquid of titration, and after once adding enough titration liquid, repeatedly titration can be carried out and not need repeatedly adding liquid; Simultaneously because buret is bimetallic tube, outer tube is thicker than the tube wall of remainder at the tube wall of interior pipe graduation position, can play the effect of magnifier, can read the scale of buret accurately; Titration water dropper is replaceable, can realize the difference needs of acid or alkali formula water dropper; The utility model structure is simple, novel in design, simultaneously easy and simple to handle.
Description
Technical field
The utility model belongs to chemical experiment measurement instrument, particularly the U-shaped buret of one.
Background technology
Buret is that laboratory is commonly used and indispensable a kind of container, is one of underlying instrument of volumetry.Buret belongs to and measures formula weight device, splendid attire titrant solution in titration operation, and releases a certain amount of solution to titration end-point.Pipe is carved with accurate scale, accurately can reads the volume of releasing solution.Whether buret is generally divided into two classes according to use piston: tool plug and uncork buret, again because of they respectively carrying liquid character and be called acid and base buret.
Traditional buret is a vertical elongated tubular construction, and pipe diameter about 1 centimetre, length changes with its capacity.Because pipe shaft is comparatively thin, at present, be generally manual hand manipulation when adding vs in buret, adding procedure is cumbersome, easily causes again solution excessive and contaminated.Scale spacing is less simultaneously, and manual read fetches data certain error unavoidably.
Summary of the invention
The utility model for existing buret Problems existing, provide a kind of can the U-shaped buret of accurate titration.
To achieve these goals, the utility model is by the following technical solutions: a kind of U-shaped buret, described buret body is U-shaped, wherein one end is liquid storage pipe, the other end is titration graduated tube, described titration graduated tube upper end is bimetallic tube, inner tube outer surface is provided with scale and scale numeral, titration graduated tube lower end separates two arms by interior pipe, be respectively titration arm and connecting branch, titration arm lower end is provided with outer grinding port, ground in the upper end connecting acid water dropper or alkali formula water dropper is provided with and matches with outer grinding port, connecting branch connects liquid storage pipe by connecting valve.
Be provided with upper flange plate above described outer grinding port, be provided with the lower flange mated with upper flange plate below the interior ground of described acid water dropper or alkali formula water dropper, upper and lower ring flange is fixed by trip bolt and fastening nut.
The outer tube of described titration graduated tube upper end, the pipe thickness of its just internal pipe scale and scale numeral is thicker than the tube wall of remainder.
The caliber of described liquid storage pipe is 3 ~ 5 times of titration graduated tube inner tube diameter.
The scale of described titration graduated tube inner tube outer surface and scale numeral are made by fluorescent material.
The beneficial effects of the utility model: the caliber of (1) liquid storage pipe is thicker, be easy to add want the liquid of titration, and after once adding enough titration liquid, can realize continuous liquid feeding, operation is very simple, quick, and the phenomenon such as there will not be solution excessive and contaminated; (2) because buret is bimetallic tube, outer tube is thicker than the tube wall of remainder at the tube wall of interior pipe graduation position, the effect of magnifier can be played, scale and scale numeral are made into by fluorescent material in addition, facilitate reading, ensure that, when dark, operator can read titer accurately, guarantee the precision of testing; (3) titration water dropper is replaceable, can realize the difference needs of acid or alkali formula water dropper; (4) structure is simple, novel in design, simultaneously easy and simple to handle.
Accompanying drawing explanation
Fig. 1 is the structural representation of the U-shaped buret of the utility model.
Fig. 2 is the acid emitter structure schematic diagram of the U-shaped buret of the utility model.
Fig. 3 is the alkali formula emitter structure schematic diagram of the U-shaped buret of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As seen from Figure 1, buret body is U-shaped, and wherein one end is liquid storage pipe 1, and the other end is titration graduated tube 2.Titration graduated tube upper end is bimetallic tube, and interior pipe 3 outside surface is provided with scale and scale numeral, and scale and scale numeral are made by fluorescent material, and outer tube 4 is thicker than the tube wall of remainder in the pipe thickness of just internally pipe scale and scale numeral.The caliber of liquid storage pipe is 3 ~ 5 times of titration graduated tube inner tube diameter.
Titration graduated tube lower end separates two arms by interior pipe, be respectively titration arm 5 and connecting branch 6, titration arm lower end is provided with outer grinding port 7, and titration arm connects acid water dropper 8 or alkali formula water dropper 9, ground 10 in the upper end of acid water dropper or alkali formula water dropper is provided with and matches with outer grinding port.Connecting branch connects liquid storage pipe by connecting valve 11.
Upper flange plate 12 is provided with above outer grinding port, the lower flange 13 mated with upper flange plate is provided with below the interior ground of acid water dropper or alkali formula water dropper, upper and lower ring flange fixes 15 by trip bolt 14 and fastening nut, trip bolt successively through upper flange plate and lower flange, then is fixed with fastening nut.
Although the utility model with preferred embodiment openly as above; but embodiment and accompanying drawing are not for limiting the utility model; anyly be familiar with this those skilled in the art; not departing from the spirit and scope of the utility model; can make various changes or retouch from working as, but same within protection domain of the present utility model.What therefore protection domain of the present utility model should define with the claims of the application is as the criterion.
Claims (5)
1. a U-shaped buret, it is characterized in that: described buret body is U-shaped, wherein one end is liquid storage pipe, the other end is titration graduated tube, described titration graduated tube upper end is bimetallic tube, inner tube outer surface is provided with scale and scale numeral, titration graduated tube lower end separates two arms by interior pipe, be respectively titration arm and connecting branch, titration arm lower end is provided with outer grinding port, ground in the upper end connecting acid water dropper or alkali formula water dropper is provided with and matches with outer grinding port, connecting branch connects liquid storage pipe by connecting valve.
2. U-shaped buret according to claim 1, it is characterized in that: above described outer grinding port, be provided with upper flange plate, be provided with the lower flange mated with upper flange plate below the interior ground of described acid water dropper or alkali formula water dropper, upper and lower ring flange is fixed by trip bolt and fastening nut.
3. U-shaped buret according to claim 1, is characterized in that: the outer tube of described titration graduated tube upper end, and the pipe thickness of its just internal pipe scale and scale numeral is thicker than the tube wall of remainder.
4. U-shaped buret according to claim 1, is characterized in that: the caliber of described liquid storage pipe is 3 ~ 5 times of titration graduated tube inner tube diameter.
5. U-shaped buret according to claim 1, is characterized in that: the scale of described titration graduated tube inner tube outer surface and scale numeral are made by fluorescent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420640714.4U CN204142695U (en) | 2014-10-31 | 2014-10-31 | U-shaped buret |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420640714.4U CN204142695U (en) | 2014-10-31 | 2014-10-31 | U-shaped buret |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204142695U true CN204142695U (en) | 2015-02-04 |
Family
ID=52419375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420640714.4U Expired - Fee Related CN204142695U (en) | 2014-10-31 | 2014-10-31 | U-shaped buret |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204142695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022021452A1 (en) * | 2020-07-28 | 2022-02-03 | 绥芬河海关综合技术中心 | Double-layer precision burette |
-
2014
- 2014-10-31 CN CN201420640714.4U patent/CN204142695U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022021452A1 (en) * | 2020-07-28 | 2022-02-03 | 绥芬河海关综合技术中心 | Double-layer precision burette |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20171031 |