CN105498872A - Measuring flask convenient for taking solution - Google Patents
Measuring flask convenient for taking solution Download PDFInfo
- Publication number
- CN105498872A CN105498872A CN201610039281.0A CN201610039281A CN105498872A CN 105498872 A CN105498872 A CN 105498872A CN 201610039281 A CN201610039281 A CN 201610039281A CN 105498872 A CN105498872 A CN 105498872A
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- CN
- China
- Prior art keywords
- flask
- bottleneck
- solution
- connector
- volumetric flask
- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/16—Reagents, handling or storing thereof
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Hematology (AREA)
- Clinical Laboratory Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
The invention discloses a measuring flask convenient for taking solution which comprises a flask plug, a flask neck and a flask body, wherein the flask plug is in sealing fit with the flask port at the upper end of the flask neck, the flask neck is provided with scale lines, an inner thread is formed in the inner wall at the lower end of the flask neck, a cylindrical connection port is formed at the upper end of the flask body, an outer thread is formed in the outer wall of the connection port, the outer thread formed in the outer wall of the connection port is in thread fit with the inner thread formed in the inner wall at the lower end of the flask neck, and a downward concave spherical surface is formed in the inner bottom surface of the flask body. By the design of the flask bottom of the spherical surface, the liquid level is increased, and the solution converges in the center range at the flask bottom when the solution in the measuring flask is little, thereby assisting a suction pipet for micro suction in the center range at the flask bottom in contacting the solution; when the solution is sucked, the flask neck in thread connection with the connection port of the flask body can be unscrewed, and the suction pipet is stretched into the flask body from the connection port to suck the solution, so that the defect that the suction pipet cannot be stretched into the thin and long flask neck of the common measuring flask is overcome; when the measuring flask is cleaned, the flask neck on the connection port of the flask body can be unscrewed, so that cleaning is convenient and a good cleaning effect is reached.
Description
Technical field
The invention belongs to a kind of volumetric flask, be specifically related to a kind of volumetric flask conveniently pipetting solution.
Background technology
Volumetric flask is the container of configuration standard solution conventional in laboratory.General when pipetting the solution of lower liquid level in container, can support with favored policy container bottom, solution is collected in container bottom engages with side chamber wall among a small circle in, namely raising liquid level conveniently pipettes solution.But when in volumetric flask, liquid level of solution is lower, even if inclination bottle, due to the restriction of the elongated bottleneck of volumetric flask, pipette can only at the bottom of bottle immediate vicinity narrow range in micro-ly to move, namely cannot touch the solution near chamber wall.
The Chinese invention patent of Authorization Notice No. CN202778525U discloses a kind of Multifunction capacity jar comprising two or two bottles, there is a facet each bottle side of this volumetric flask, can lie in a horizontal plane on table top, select to sample from the bottleneck of bottle side, avoid common volumetric flask bottleneck long meticulous, when liquid level is too low, pipette the trouble less than solution.But, this volumetric flask center of gravity under vertical laying state is higher, and the volumetric flask erect during obtain solution is easily toppled over, when repeatedly putting upside down volumetric flask and carrying out the operation shaking up solution, because the bottleneck connecting each bottle is comparatively thin, between each bottle solution convection current and mixing efficiency lower.
The Chinese invention patent of Authorization Notice No. CN203116787U discloses a kind of volumetric flask, and bottle is provided with opening, and pipettor can enter from opening the liquid drawn bottom volumetric flask.In chemistry experiment operating, put upside down when volumetric flask shakes up solution and with the bottle stopper of the tight bottle mouth position of hand, solution leakage need be avoided.But the novel volumetric flask of above-mentioned experiment is except bottle mouth position has bottle stopper, bottle also has a bottle stopper, and in operation, operating personnel need compress two bottle stoppers simultaneously, and repeatedly put upside down and shake up, and add operation easier.Foregoing invention does not take certain connected mode to be connected with bottle by bottle stopper simultaneously, this is easy to obscure each bottle stopper when batch cleaning or use volumetric flask, if employ unmatched bottle stopper, just easily cause solution leakage putting upside down when volumetric flask shakes up solution, cause the concentration of obtain solution inaccurate and pollute operating table surface, if corrosive leakage also can endanger operator ' s health.
Summary of the invention
The present invention proposes to overcome the shortcoming existed in prior art, its objective is and provides a kind of volumetric flask conveniently pipetting solution.
The technical scheme of this practicality is:
A kind of volumetric flask conveniently pipetting solution, comprise bottle stopper, bottleneck and body, bottle stopper coordinates with bottleneck upper end bottle sealing, bottleneck is provided with graduation mark, described bottleneck lower end inner wall forms internal thread, body upper end forms column type connector, and the outer wall of connector forms external screw thread, the external screw thread of the outer wall of connector and the internal thread threaded engagement of bottleneck lower end inner wall; The inner bottom surface of body forms the sphere to lower recess.
Conically, and its outer bottom is plane to described body.
Described graduation mark is positioned at the plane perpendicular with bottleneck axle center, and the vertical range of graduation mark and connector top edge is not less than 1 centimetre.
The internal diameter of described connector is equal with the internal diameter of bottleneck.
Described bottle stopper, bottleneck, body and connector are coaxial.
Described bottle stopper, bottleneck, body and connector all adopt corrosion resistant inert plastic to make.
The invention has the beneficial effects as follows:
The present invention is compared with common volumetric flask, for the solution of same volume, liquid level can be improved to a certain extent than at the bottom of plane bottle at the bottom of sphere bottle, when solution is less in volumetric flask, in center range at the bottom of solution collects in bottle, contribute to the micro-pipette contact moved of immediate vicinity scope at the bottom of bottle to solution; When using pipettor draw solution, the bottleneck be connected with screw thread with bottle connector of can outwarding winding, stretches into draw solution in bottle from connector, overcomes the drawback that pipettor cannot stretch into the elongated bottleneck of common volumetric flask; Also the bottleneck can outwarded winding on bottle connector during cleaning volumetric flask, brush convenient for cleaning stretches in bottle, reaches better cleaning performance.
Accompanying drawing explanation
Fig. 1 is decomposition texture schematic diagram of the present invention;
Fig. 2 is structural representation of the present invention;
Fig. 3 be in Fig. 2 along A-A to profile.
Wherein:
1 bottle stopper 2 bottleneck
3 bottle 4 graduation marks
5 connectors.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, the volumetric flask that the present invention conveniently pipettes solution is described in detail:
As shown in Fig. 1 ~ 3, a kind of volumetric flask conveniently pipetting solution, comprise bottle stopper 1, bottleneck 2 and body 3, bottle stopper 1 coordinates with bottleneck 2 upper end bottle sealing, bottleneck 2 is provided with graduation mark 4, and described bottleneck 2 lower end inner wall forms internal thread, body 3 upper end forms column type connector 5, connector 5 and bottle 3 are formed in one, and the outer wall of connector 5 forms external screw thread, the external screw thread of the outer wall of connector 5 and the internal thread threaded engagement of bottleneck 2 lower end inner wall; The inner bottom surface of body 3 forms the sphere to lower recess.
Conically, and its outer bottom is plane to described body 3.
Described graduation mark 4 is positioned at the plane perpendicular with bottleneck 2 axle center, and graduation mark 4 is not less than 1 centimetre with the vertical range of connector 5 top edge.
The internal diameter of described connector 5 is equal with the internal diameter of bottleneck 2, and after both Screw assemblies, connector 5 inwall is concordant with bottleneck 2 inner wall surface.
Described bottle stopper 1, bottleneck 2, body 3 and connector 5 are coaxial.
Described bottle stopper 1, bottleneck 2, body 3 and connector 5 all adopt corrosion resistant inert plastic to make.
The upper end bottle mouth position of described bottleneck 2 forms the chimb strengthened.
Body 3 inner bottom surface of the present invention is in the sphere to lower recess, and when in volumetric flask, solution is less, solution will collect within the scope of concave spherical surface, contributes to the micro-pipette contact moved of immediate vicinity scope at the bottom of bottle to solution.Outward winding and be connected to the bottleneck 2 of bottle 3 top connector 5, overcome the restriction of the elongated bottleneck of existing volumetric flask, pipettor extend into the following draw solution of liquid level in bottle by bottle 3 top connector 5.Also can to outward winding bottleneck 2 when cleaning volumetric flask, brush convenient for cleaning gos deep in bottle from bottle top connector 5, reaches better cleaning performance.Bottleneck 2 high scale line 4 is not less than 1 centimetre with the vertical range of bottle top connector 5 top edge, and namely graduation mark 4 is higher than threaded connection place, prevents graduation mark overlapping with screw thread mouth, guarantees that graduation mark is high-visible.
Claims (6)
1. one kind conveniently pipettes the volumetric flask of solution, comprise bottle stopper (1), bottleneck (2) and body (3), bottle stopper (1) coordinates with bottleneck (2) upper end bottle sealing, bottleneck (2) is provided with graduation mark (4), it is characterized in that: described bottleneck (2) lower end inner wall forms internal thread, body (3) upper end forms column type connector (5), and the outer wall of connector (5) forms external screw thread, the external screw thread of the outer wall of connector (5) and the internal thread threaded engagement of bottleneck (2) lower end inner wall; The inner bottom surface of body (3) forms the sphere to lower recess.
2. a kind of volumetric flask conveniently pipetting solution according to claim 1, is characterized in that: conically, and its outer bottom is plane to described body (3).
3. a kind of volumetric flask conveniently pipetting solution according to claim 1, is characterized in that: described graduation mark (4) is positioned at the plane perpendicular with bottleneck (2) axle center, and graduation mark (4) is not less than 1 centimetre with the vertical range of connector (5) top edge.
4. a kind of volumetric flask conveniently pipetting solution according to claim 1, is characterized in that: the internal diameter of described connector (5) is equal with the internal diameter of bottleneck (2).
5. a kind of volumetric flask conveniently pipetting solution according to claim 1, is characterized in that: described bottle stopper (1), bottleneck (2), body (3) and connector (5) are coaxial.
6. a kind of volumetric flask conveniently pipetting solution according to claim 1, is characterized in that: described bottle stopper (1), bottleneck (2), body (3) and connector (5) all adopt corrosion resistant inert plastic to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610039281.0A CN105498872A (en) | 2016-01-21 | 2016-01-21 | Measuring flask convenient for taking solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610039281.0A CN105498872A (en) | 2016-01-21 | 2016-01-21 | Measuring flask convenient for taking solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105498872A true CN105498872A (en) | 2016-04-20 |
Family
ID=55707406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610039281.0A Pending CN105498872A (en) | 2016-01-21 | 2016-01-21 | Measuring flask convenient for taking solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105498872A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3938035A (en) * | 1974-07-16 | 1976-02-10 | Nasa | Electrical conductivity cell and method for fabricating the same |
| CN202195849U (en) * | 2011-06-20 | 2012-04-18 | 泰州市苏京实验仪器科技有限公司 | Base volumetric flask |
| CN202555301U (en) * | 2012-04-14 | 2012-11-28 | 王喜广 | Combination flask |
| CN203237523U (en) * | 2013-04-24 | 2013-10-16 | 苏州绿叶日用品有限公司 | Liquid volumetric flask |
| CN203648556U (en) * | 2014-01-08 | 2014-06-18 | 南京信息工程大学 | Flask |
| CN203955242U (en) * | 2014-06-06 | 2014-11-26 | 中国农业科学院兰州畜牧与兽药研究所 | A kind of volumetric flask |
| CN204973947U (en) * | 2015-07-29 | 2016-01-20 | 山东精工电子科技有限公司 | Multi -functional flask |
| CN205340838U (en) * | 2016-01-21 | 2016-06-29 | 核工业理化工程研究院 | Conveniently move volumetric flask of getting solution |
-
2016
- 2016-01-21 CN CN201610039281.0A patent/CN105498872A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3938035A (en) * | 1974-07-16 | 1976-02-10 | Nasa | Electrical conductivity cell and method for fabricating the same |
| CN202195849U (en) * | 2011-06-20 | 2012-04-18 | 泰州市苏京实验仪器科技有限公司 | Base volumetric flask |
| CN202555301U (en) * | 2012-04-14 | 2012-11-28 | 王喜广 | Combination flask |
| CN203237523U (en) * | 2013-04-24 | 2013-10-16 | 苏州绿叶日用品有限公司 | Liquid volumetric flask |
| CN203648556U (en) * | 2014-01-08 | 2014-06-18 | 南京信息工程大学 | Flask |
| CN203955242U (en) * | 2014-06-06 | 2014-11-26 | 中国农业科学院兰州畜牧与兽药研究所 | A kind of volumetric flask |
| CN204973947U (en) * | 2015-07-29 | 2016-01-20 | 山东精工电子科技有限公司 | Multi -functional flask |
| CN205340838U (en) * | 2016-01-21 | 2016-06-29 | 核工业理化工程研究院 | Conveniently move volumetric flask of getting solution |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160420 |
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| RJ01 | Rejection of invention patent application after publication |