CN202041518U - Combined press button type universal burette - Google Patents
Combined press button type universal burette Download PDFInfo
- Publication number
- CN202041518U CN202041518U CN 201120104034 CN201120104034U CN202041518U CN 202041518 U CN202041518 U CN 202041518U CN 201120104034 CN201120104034 CN 201120104034 CN 201120104034 U CN201120104034 U CN 201120104034U CN 202041518 U CN202041518 U CN 202041518U
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- CN
- China
- Prior art keywords
- main body
- plastic castings
- passage
- titration
- plastic
- 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 discloses a combined press button type universal burette, which is characterized in that a glass piston part of a traditional burette is changed into an acid-resistant and alkali-resistant full plastic casting, in addition, a titration press button, a titration switch and a titration head are connected into a whole, the easy and accurate titration analysis can be realized, and in addition, various key problems such as easy blockage and easy contamination, inconvenient operation, easy aging of a latex pipe, easy breaking of a glass knob, matching incapability and the like of the traditional burette can be thoroughly solved.
Description
Technical field
The utility model relates to a kind of buret, especially relates to the general buret of a kind of combination button formula.
Background technology
Buret is a requisite experimental apparatus in the titrimetry experiment.Present employed buret is divided into two kinds of acid buret and base burets, their structure is different with purposes, to select different burets according to different titrant, and the titration operation posture is required correct standard, otherwise will cause leakage or influence the accuracy of titration results.The cock of acid buret is made by the glass of polishing, and supporting with former buret strictness, in case damage, whole buret also just scrapped; Acid buret also need be coated with vaseline when using, and very easily causes to stain or stop up.Base buret is not only operated effort, and its emulsion tube is very easily aging and titrant is polluted.Two kinds of burets can not be general, both increased the expense of buying instrument, also bring inconvenience to use.
Summary of the invention
At the deficiency that prior art exists, the purpose of this utility model is to provide a kind of simple to operate, general buret of combination button formula that practicality is stronger.
The purpose of this utility model is achieved in that it is the all-plastic foundry goods that the glass piston of old-fashioned buret is partly changed into acid-fast alkali-proof, and titration button, titration switch and titrating head are combined into one, and can discharge with buret and separate.Concrete structure is as follows: a set nut is arranged at the glass tube bottom at a band scale, insert in the groove on plastic castings main body top the bottom of glass tube, and by set nut and the locking of plastic castings main body, set nut and plastic castings main body are by O RunddichtringO a sealing; There is a passage at plastic castings main body middle part, one section big, one section little in passage, and the bottom portion of groove on plastic castings main body top has a passage aisle to pass to the segment place of plastic castings main body central passage; The titration button of one band spring is arranged in the end of passage segment, and spring is between titration button and plastic castings main body; One end of titration button is connected with spool by latch, and spool is positioned at plastic castings main body central passage, in the spool part of the spool of the big end of plastic castings main body central passage part greater than plastic castings main body central passage small end; One O RunddichtringO b sealing is arranged on the spool near the plastic castings main body central passage small end of titration button; There is a gland nut end in big section of passage, and gland nut is by rubber cushion and plastic castings body seal; There is a passage to pass to the titrating head of plastic castings lower body part big section of plastic castings main body central passage with the segment intersection.
The beneficial effects of the utility model are: adopt the general buret of combination button formula not only can realize easily titrimetry accurately, and solved thoroughly that old-fashioned buret easily stops up, contamination, inconvenient operation, emulsion tube is easily aging and glass cock easily smash can not be supporting etc. many key issues.This buret is simple in structure, and production cost is low, is easy to clean, and market outlook are wide.
Description of drawings
Below in conjunction with accompanying drawing the general buret of the utility model combination button formula is described further.
Fig. 1 is the structural representation of the general buret of the utility model combination button formula.
Reference numeral: 1. titration button 2. springs 3. set nuts 4. glass tubes
5.O RunddichtringO a 6. gland nuts 7. rubber cushions 8. spools
9. plastic castings main body 10.O closed type circle b 11. latches
Embodiment
As shown in Figure 1, the utility model has a set nut 3 in glass tube 4 bottoms of a band scale, insert in the groove on plastic castings main body 9 tops the bottom of glass tube 4, and by set nut 3 and 9 lockings of plastic castings main body, set nut 3 passes through O RunddichtringO a5 sealing with plastic castings main body 9; There is a passage at plastic castings main body 9 middle parts, one section big, one section little in passage, and the bottom portion of groove on plastic castings main body 9 tops has a passage aisle to pass to the segment place of plastic castings main body central passage; The titration button 1 of one band spring 2 is arranged in the end of passage segment, and spring 2 is between titration button 1 and plastic castings main body 9; One end of titration button 1 is connected with spool 8 by latch 11, and spool 8 is positioned at plastic castings main body 9 central passage, at the spool of the big end of plastic castings main body 9 central passage partly greater than the spool part of plastic castings main body 9 central passage small ends; One O RunddichtringO b10 sealing is arranged on the spool 8 near the plastic castings main body 9 central passage small ends of titration button 1; In the end of big section of passage a gland nut 6 is arranged, gland nut 6 is by rubber cushion 7 and 9 sealings of plastic castings main body; There is a passage to pass to the titrating head of plastic castings main body 9 bottoms big section of plastic castings main body 9 central passage with the segment intersection.
During use titrant is added in the glass tube 4 of band scale to more than the zero graduation 1 zeroing of flicking titration button; Then detected solution is placed under the titrating head, press titration button 1 and can carry out fast or titration at a slow speed.When changing the glass tube 4 on top, earlier set nut 3 is unclamped, tighten again after changing new glass tube 4.After each titration is intact, unclamps gland nut 6, extract latch 11, take out spool 8 again, can carry out inner cleaning, so that use next time.
Claims (1)
1. general buret of combination button formula, it is the all-plastic foundry goods that the glass piston of old-fashioned buret is partly changed into acid-fast alkali-proof, and titration button, titration switch and titrating head be connected as a single entity, it is characterized in that: a set nut (3) is arranged at glass tube (4) bottom at a band scale, insert in the groove on plastic castings main body (9) top the bottom of glass tube (4), and by set nut (3) and plastic castings main body (9) locking, set nut (3) passes through O RunddichtringO a (5) sealing with plastic castings main body (9); There is a passage at plastic castings main body (9) middle part, one section big, one section little in passage, and the bottom portion of groove on plastic castings main body (9) top has a passage aisle to pass to the segment place of plastic castings main body central passage; The titration button (1) of one band spring (2) is arranged in the end of passage segment, and spring (2) is positioned between titration button (1) and the plastic castings main body (9); One end of titration button (1) is connected with spool (8) by latch (11), spool (8) is positioned at plastic castings main body (9) central passage, in the spool part of the spool of the big end of plastic castings main body (9) central passage part greater than plastic castings main body (9) central passage small end; One O RunddichtringO b (10) sealing is arranged on the spool (8) near plastic castings main body (9) the central passage small end of titration button (1); In the end of big section of passage a gland nut (6) is arranged, gland nut (6) is by rubber cushion (7) and plastic castings main body (9) sealing; There is a passage to pass to the titrating head of plastic castings main body (9) bottom big section of plastic castings main body (9) central passage with the segment intersection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120104034 CN202041518U (en) | 2011-04-08 | 2011-04-08 | Combined press button type universal burette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120104034 CN202041518U (en) | 2011-04-08 | 2011-04-08 | Combined press button type universal burette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202041518U true CN202041518U (en) | 2011-11-16 |
Family
ID=44968956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120104034 Expired - Fee Related CN202041518U (en) | 2011-04-08 | 2011-04-08 | Combined press button type universal burette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202041518U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926374A (en) * | 2014-03-30 | 2014-07-16 | 吉首大学 | Novel general burette |
| CN104865344A (en) * | 2015-04-20 | 2015-08-26 | 苏州卫生职业技术学院 | Burette switching device |
| CN106423323A (en) * | 2016-09-19 | 2017-02-22 | 文山学院 | Universal burette |
-
2011
- 2011-04-08 CN CN 201120104034 patent/CN202041518U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926374A (en) * | 2014-03-30 | 2014-07-16 | 吉首大学 | Novel general burette |
| CN103926374B (en) * | 2014-03-30 | 2015-09-16 | 吉首大学 | Novel universal buret |
| CN104865344A (en) * | 2015-04-20 | 2015-08-26 | 苏州卫生职业技术学院 | Burette switching device |
| CN106423323A (en) * | 2016-09-19 | 2017-02-22 | 文山学院 | Universal burette |
| CN106423323B (en) * | 2016-09-19 | 2019-01-15 | 文山学院 | A kind of universal buret |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20120408 |