CN202542825U - Dropping funnel - Google Patents
Dropping funnel Download PDFInfo
- Publication number
- CN202542825U CN202542825U CN2012200602303U CN201220060230U CN202542825U CN 202542825 U CN202542825 U CN 202542825U CN 2012200602303 U CN2012200602303 U CN 2012200602303U CN 201220060230 U CN201220060230 U CN 201220060230U CN 202542825 U CN202542825 U CN 202542825U
- Authority
- CN
- China
- Prior art keywords
- ground
- mouth
- dropping funnel
- tapered
- main body
- 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
Links
- 239000007788 liquid Substances 0.000 abstract description 10
- 239000012295 chemical reaction liquid Substances 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000376 reactant Substances 0.000 description 5
- 230000007812 deficiency Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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Abstract
The utility model discloses a dropping funnel which comprises an internal tapered grinding mouth, a main body tube, a piston, an external tapered ground joint, a branch tube and a ground-mouth plug, wherein the internal tapered grinding mouth, the main body tube, the piston, the external tapered ground joint and the branch tube are sequentially connected, the internal tapered grinding mouth is connected with the ground-mouth plug, and the ground-mouth plug is provided with an air vent matched with the air vent of the internal tapered grinding mouth. Compared with the prior art, the dropping funnel disclosed by the utility model has the beneficial effects that 1) a glass external tapered ground joint is designed between the main body tube and the branch tube, so that an operation of fixing the dropping funnel by using a rubber plug and the like is not required to be performed; 2) the interface of the external tapered ground joint is connected with a branch tube with a proper length, and the branch tube can be inserted below the liquid level, so that a dropped liquid can be uniformly mixed with a reaction liquid, and the volatilization of the liquid dropped into a heating system can be reduced, so that the yield is improved, and the dropping funnel is simple in structure, convenient to operate and low in production cost; 3) the interface of the external tapered ground joint is designed as a universal interface, so that the interface is convenient to use; and 4) the ground-mouth plug and the internal tapered grinding mouth are respectively provided with an air vent, so that the dropped liquid can be used under the conditions of both atmospheric pressure and pressure reduction.
Description
Technical field
The utility model relates to funnel, relates in particular to a kind of tap funnel.
Background technology
Dropping is in the organic synthesis process, liquid reactants or reactant solution controlledly to be joined a basic operation in the reaction through tap funnel.Common tap funnel is divided into two kinds; A kind of main body pipe and arm of only comprising usually; In use, need after the arm place uses soft rubber ball to wait to be fixed on the flask, to drip, the use of soft rubber ball or other stoppers exists and is prone to pollute, be prone to deficiencies such as aging; Another kind is main body pipe and the arm that has outer grinding port, and its arm can not insert below the reaction liquid level, in the experiment that the limit heating edge drips, often causes the volatilization of reactant liquor, brings inconvenience for experiment and operation.
Summary of the invention
The purpose of the utility model is the deficiency that overcomes prior art, and a kind of tap funnel is provided.
Tap funnel comprises inner conical ground, main body pipe, piston, male-tapered ground, arm and grinding port plug; Inner conical ground, main body pipe, piston, male-tapered ground, arm link to each other in order; Be placed with grinding port plug on the inner conical ground, on grinding port plug, be provided with the air extractor vent that matches with inner conical ground air extractor vent.
The beneficial effect that the utility model compared with prior art has:
1) design one glass male-tapered ground between main body pipe and the arm needn't re-use soft rubber ball etc. and fix tap funnel.
2) male-tapered ground interface connects the arm of an appropriate length, can insert below the liquid level, and the liquid and the reactant liquor that are added dropwise to are mixed, and can reduce the volatilization that is added dropwise to liquid in the heating systems, and yield structure is simple, easy to operate, productive costs is low thereby improve.
3) the male-tapered ground Interface design of the utility model is general purpose interface, and is easy-to-use.
4) grinding port plug and inner conical grinding port plug place are equipped with air extractor vent, and dropping liquid all can be used under normal pressure and decompression situation.
Description of drawings
Fig. 1 is the structural representation of tap funnel.
The specific embodiment
As shown in Figure 1; Tap funnel comprises inner conical ground 1, main body pipe 2, piston 3, male-tapered ground 4, arm 5 and grinding port plug 6; Inner conical ground 1, main body pipe 2, piston 3, male-tapered ground 4, arm 5 link to each other in order; Be placed with grinding port plug 6 on the inner conical ground 1, on grinding port plug 6, be provided with the air extractor vent that matches with inner conical ground 1 air extractor vent.
Concrete method of application: closure piston 3, reactant liquor is joined in the main body pipe 2, cover grinding port plug; Use under normal pressure like need, air extractor vent on the then accurate grinding port plug 6 and the air extractor vent on the inner conical grinding port plug 1 align, and communicate with air; Then tap funnel is inserted in the flask, makes male-tapered ground 4 and flask ground leak-tight joint, arm 5 will insert below the reaction liquid level simultaneously; Again piston 3 is opened, thus the task of completion dropping liquid.
Claims (1)
1. tap funnel; Its characteristic comprises inner conical ground (1), main body pipe (2), piston (3), male-tapered ground (4), arm (5) and grinding port plug (6); Inner conical ground (1), main body pipe (2), piston (3), male-tapered ground (4), arm (5) link to each other in order; Be placed with grinding port plug (6) on the inner conical ground (1), inner conical ground (1) is provided with air extractor vent, on grinding port plug (6), is provided with the air extractor vent that matches with inner conical ground (1) air extractor vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200602303U CN202542825U (en) | 2012-02-23 | 2012-02-23 | Dropping funnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200602303U CN202542825U (en) | 2012-02-23 | 2012-02-23 | Dropping funnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202542825U true CN202542825U (en) | 2012-11-21 |
Family
ID=47163491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200602303U Expired - Fee Related CN202542825U (en) | 2012-02-23 | 2012-02-23 | Dropping funnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202542825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556921A (en) * | 2012-02-23 | 2012-07-11 | 浙江大学 | Liquid dropping funnel |
-
2012
- 2012-02-23 CN CN2012200602303U patent/CN202542825U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556921A (en) * | 2012-02-23 | 2012-07-11 | 浙江大学 | Liquid dropping funnel |
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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: 20121121 Termination date: 20130223 |