CN202988695U - Controllable constant-pressure dropping funnel - Google Patents
Controllable constant-pressure dropping funnel Download PDFInfo
- Publication number
- CN202988695U CN202988695U CN 201220679339 CN201220679339U CN202988695U CN 202988695 U CN202988695 U CN 202988695U CN 201220679339 CN201220679339 CN 201220679339 CN 201220679339 U CN201220679339 U CN 201220679339U CN 202988695 U CN202988695 U CN 202988695U
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- Prior art keywords
- branch pipe
- grinding opening
- piston
- pipe
- drop
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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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- 239000011521 glass Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 4
- 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
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000376 reactant Substances 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
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Abstract
The utility model discloses a controllable constant-pressure dropping funnel which comprises an inner conical grinding opening, a drop-shaped main pipe, a piston, an upper branch pipe, an outer conical grinding opening, a lower branch pipe, a grinding opening plug and a U-shaped glass pipe, wherein the inner conical grinding opening, the drop-shaped main pipe, the piston, the upper branch pipe, the outer conical grinding opening and the lower branch pipe are sequentially connected with one another; the piston is internally provided with an inner dropper which extends into the upper part of the upper branch pipe; the U-shaped glass pipe is connected with the drop-shaped main pipe and the upper branch pipe; and the inner grinding opening is moveably connected with the grinding opening plug. Compared with the prior art, the controllable constant-pressure dropping funnel has the beneficial effects that the lower branch pipe with moderate length is connected to the joint of the outer conical grinding opening and can be inserted below a liquid level, so that dropped liquid and reaction liquid are uniformly mixed, the volatilization of the dropped liquid in a heating system can be reduced, and furthermore, the yield is improved; the dropping process of the inner dropper is easy to observe and control; and the U-shaped glass pipe has the function of balancing air pressure, so that the funnel is convenient to use and low in production cost.
Description
Technical field
The utility model relates to a kind of funnel, relates in particular to a kind of controllable constant-pressure tap funnel.
Background technology
Dropping is a basic operation in the organic synthesis process, liquid reactants or reactant solution controlledly being joined reaction by tap funnel.Constant pressure funnel is usually used in closed system, and such as the organic synthesis experiment of the overwhelming majority,, needs volatile because of its organic solvent completely cut off air etc.Common tap funnel is cylinder body pipe, U-shaped constant voltage arm and the ground arm with outer grinding port, but its ground arm can not insert below the reaction liquid level, in the experiment that the limit heating edge drips, tend to cause the volatilization of reactant liquor, thereby bring inconvenience for experiment and operation.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of constant pressure funnel to be provided.
A kind of controllable constant-pressure tap funnel, comprise inner conical ground, water-drop-shaped main body tube, piston, upper arm, male-tapered ground, lower branch line, grinding port plug, U-shaped glass tube, inner conical ground, water-drop-shaped main body tube, piston, upper arm, male-tapered ground, lower branch line are connected in turn, piston is provided with interior dropper, should in dropper extend into arm top, the U-shaped glass tube connects water-drop-shaped main body tube and upper arm, and interior ground and grinding port plug are flexibly connected.
The beneficial effect that the utility model compared with prior art has:
1, male-tapered ground interface connects the lower branch line of an appropriate length, can insert below liquid level, and the liquid and the reactant liquor that splash into are mixed; Can reduce the volatilization that splashes into liquid in heating systems, thereby improve productive rate.
2, easily observe control in interior dropper dropping liquid process.
3, the U-shaped glass tube has the function of equilibrium air pressure, and is easy to use, and productive costs is low.
Description of drawings
Fig. 1 is the structural representation of constant pressure funnel.
The specific embodiment
As shown in Figure 1, a kind of controllable constant-pressure tap funnel, comprise inner conical ground 1, water-drop-shaped main body tube 2, piston 3, upper arm 4, male-tapered ground 5, lower branch line 6, grinding port plug 7, U-shaped glass tube 8, inner conical ground 1, water-drop-shaped main body tube 2, piston 3, upper arm 4, male-tapered ground 5, lower branch line 6 are connected in turn, piston 3 is provided with interior dropper, should in dropper extend into arm 4 tops, U-shaped glass tube 8 connects (conducting) water-drop-shaped main body tube 2 and upper arms 4, interior ground 1 and grinding port plug 7.Concrete using method: closure piston 3, reactant liquor is joined in water-drop-shaped main body tube 2, put grinding port plug 7 on interior ground 1, then the controllable constant-pressure tap funnel is inserted in flask, male-tapered ground 5 is connected with the flask ground to be connected, lower branch line 6 inserts below the reaction liquid level simultaneously, then piston 3 is opened, the beginning dropping liquid.Control the dropping liquid amount by the dropping liquid situation of observing interior dropper.
Claims (1)
1. controllable constant-pressure tap funnel, it is characterized in that, it comprises inner conical ground (1), water-drop-shaped main body tube (2), piston (3), upper arm (4), male-tapered ground (5), lower branch line (6), grinding port plug (7), U-shaped glass tube (8), inner conical ground (1), water-drop-shaped main body tube (2), piston (3), upper arm (4), male-tapered ground (5), lower branch line (6) is connected in turn, piston (3) is provided with interior dropper, should in dropper extend into arm (4) top, U-shaped glass tube (8) connects water-drop-shaped main body tube (2) and upper arm (4), interior ground (1) is flexibly connected with grinding port plug (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220679339 CN202988695U (en) | 2012-12-11 | 2012-12-11 | Controllable constant-pressure dropping funnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220679339 CN202988695U (en) | 2012-12-11 | 2012-12-11 | Controllable constant-pressure dropping funnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202988695U true CN202988695U (en) | 2013-06-12 |
Family
ID=48559894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220679339 Expired - Fee Related CN202988695U (en) | 2012-12-11 | 2012-12-11 | Controllable constant-pressure dropping funnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202988695U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555865A (en) * | 2013-10-14 | 2015-04-29 | 刘长风 | Double-ball funnel |
| CN109603946A (en) * | 2019-01-31 | 2019-04-12 | 西北大学 | Adjust the rubber head dropper and its adjusting method of droplet size |
-
2012
- 2012-12-11 CN CN 201220679339 patent/CN202988695U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555865A (en) * | 2013-10-14 | 2015-04-29 | 刘长风 | Double-ball funnel |
| CN109603946A (en) * | 2019-01-31 | 2019-04-12 | 西北大学 | Adjust the rubber head dropper and its adjusting method of droplet size |
| CN109603946B (en) * | 2019-01-31 | 2023-06-23 | 西北大学 | Rubber head dropper for adjusting droplet size and adjusting method thereof |
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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: 20130612 Termination date: 20131211 |