CN206570013U - A kind of piston-type constant-pressure funnel of combination flow speed controller - Google Patents
A kind of piston-type constant-pressure funnel of combination flow speed controller Download PDFInfo
- Publication number
- CN206570013U CN206570013U CN201621409633.9U CN201621409633U CN206570013U CN 206570013 U CN206570013 U CN 206570013U CN 201621409633 U CN201621409633 U CN 201621409633U CN 206570013 U CN206570013 U CN 206570013U
- Authority
- CN
- China
- Prior art keywords
- speed controller
- flow speed
- piston
- hole
- funnel
- 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 kind of piston-type constant-pressure funnel of combination flow speed controller, including function funnel bottle, piston is provided with function funnel bottle, function funnel bottle lower end is connected with conduit by connecting tube, and connecting tube is provided with flow speed controller.The piston-type constant-pressure funnel of the utility model combination flow speed controller, combine the device of medical needle tubular construction and flow speed controller, two kinds of systematic errors being likely to occur in actual mechanical process can be reduced simultaneously, not only reduce experimental procedure, and effectively raise the order of accuarcy of experiment.
Description
Technical field
The utility model belongs to experiment appliance field, and in particular to a kind of piston-type constant-pressure leakage of combination flow speed controller
Bucket.
Background technology
During chemical experiment is carried out, the situation for being added dropwise or at the uniform velocity adding is frequently encountered, is generally existed
Laboratory can all be added using common constant pressure funnel, but during being added with constant pressure funnel, can run into it is many it is artificial not
Controllable situation, such as：
(1) poor sealing of constant pressure funnel, has a small amount of liquid and is oozed from the seam of funnel and piston, and oozes
This partially liq volume is inestimable again, causes the liquid volume measured to reduce, so as to influence the order of accuarcy of experiment.
(2) it is typically that the liquid measured before is drained into separatory funnel by glass bar in testing, in this shifting
It is also to have certain loss to liquid during liquid.
Frequent produced problem in being tested for more than, a kind of piston-type constant-pressure leakage of currently proposed combination flow speed controller
Bucket.
Utility model content
The purpose of this utility model is to provide a kind of piston-type constant-pressure funnel of combination flow speed controller, solves existing perseverance
The problem of leakage occurred during pressure funnel use.
The utility model the technical scheme adopted is that a kind of piston-type constant-pressure funnel of combination flow speed controller, including
Piston is provided with function funnel bottle, function funnel bottle, function funnel bottle lower end is connected with conduit by connecting tube, and connecting tube is provided with flow control
Device.
The characteristics of the utility model, also resides in,
Function funnel bottle uses up big and down small shape.
Function funnel bottle outer surface is provided with graduation mark.
Flow speed controller includes bolt and three hole nuts being connected through a screw thread with bolt.
Three hole nuts are provided with a through hole, are additionally provided with a screwed hole vertical with through hole, screwed hole and through hole cross,
Connecting tube passes through through hole, and bolt is connected by screwed hole with three hole nuts.
The beneficial effects of the utility model are, the piston-type constant-pressure funnel of the utility model combination flow speed controller, with reference to
The device of medical needle tubular construction and flow speed controller, can reduce two germlines being likely to occur in actual mechanical process simultaneously
System error, not only reduces experimental procedure, and effectively raise the order of accuarcy of experiment.
Funnel bottle surface is provided with graduation mark, the volume of liquid needed for can directly measuring, and reduces in conventional experimentation
Middle residual loss when measuring liquid with apparatus such as graduated cylinders.
The three hole nuts and bolts that flow speed controller is used, three hole nuts are directly sleeved in connecting tube, and liquid is in connecting tube
Interior flowing, so liquid and flow speed controller will not be contacted directly during coutroi velocity, it is to avoid liquid had been added dropwise
Loss in journey, effectively improves experiment accuracy rate.
Brief description of the drawings
Fig. 1 is the structural representation of the piston-type constant-pressure funnel of the utility model combination flow speed controller；
Fig. 2 be the utility model combination flow speed controller piston-type constant-pressure funnel in flow speed controller structure chart.
In figure, 1. pistons, 2. function funnel bottles, 3. connecting tubes, 4. 3 hole nuts, 5. bolts, 6. conduits.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
The piston-type constant-pressure funnel of the utility model combination flow speed controller, structure are as shown in figure 1, including function funnel bottle 2, leakage
The bottle 2 that struggles against is interior to be provided with piston 1, and the lower end of function funnel bottle 2 is connected with conduit 6 by connecting tube 3, and connecting tube 3 is provided with flow speed controller.
Function funnel bottle 2 uses up big and down small shape, after piston 1 is by required liquid suction funnel bottle 2, as long as now not
Liquid in piston 1, function funnel bottle 2 would not be flowed out, when a certain amount of volume needed for suction, the lower end conduit 6 of function funnel bottle 2
The liquid level of measured liquid is left, piston 1 is then continued up into drawing, the place that the body diameter of function funnel bottle 2 becomes big is moved to, rapidly
Flow speed controller is closed, piston 1 is removed, this device is disposed vertically, after reading after liquid surface static in function funnel bottle 2, if exceeding
Required volume, then slowly open flow speed controller, releases surplus liquid, if less than required volume, being added with glue head dropper
To required volume.
The outer surface of function funnel bottle 2 is provided with graduation mark, the volume of liquid needed for can directly measuring, and reduces in conventional experimentation
Middle residual loss when measuring liquid with apparatus such as graduated cylinders.
As shown in Fig. 2 flow speed controller includes bolt 5 and three hole nuts 4 being connected through a screw thread with bolt 5.Three hole spiral shells
Mother 4 is provided with a through hole, is additionally provided with a screwed hole vertical with through hole, screwed hole and through hole cross, and connecting tube 3 passes through logical
Hole, bolt 5 is connected by screwed hole with three hole nuts 4.
Flow speed controller is by controlling position of the bolt 5 in three hole nuts 4 to adjust flow velocity, when bolt 5 is in three hole spiral shells
During female 4 right-hand member, flow speed controller is in fully open state, and now flow speed controller does not have control action to flow velocity；When bolt 5
In three hole 4 high order ends of nut, liquid does not drip still further below, and flow speed controller plays the role of to dam to liquid.Only when bolt 5 exists
When position in the middle of three hole nut 4 is moved left and right, flow speed controller just has corresponding control action to the flow velocity of liquid.
In experimentation, if do not required rate of addition, that can move to bolt 5 the most right of three hole nuts 4
End, with the volume of liquid needed for this direct accurate measuring of piston-type constant-pressure funnel with reference to flow speed controller, added to another
The step in reagent, can not only directly measuring liquid volume, and eliminate conventional liquid relief, if to rate of addition in experiment
There is strict demand, such as be added dropwise, first repeat the above steps, after treating that required liquid volume is measured, pass through coutroi velocity
Position of the bolt 5 in three hole nuts 4 adjusts the size of flow velocity in controller.The piston constant of this combination flow speed controller
Press funnel not only simple to operate, and can effectively reduce the systematic error in experimentation, ingenious in design, practicality is very
By force.
Claims (3)
1. a kind of piston-type constant-pressure funnel of combination flow speed controller, it is characterised in that including function funnel bottle (2), the function funnel bottle
(2) piston (1) is provided with, function funnel bottle (2) lower end is connected with conduit (6), the connecting tube (3) by connecting tube (3)
Provided with flow speed controller；
The flow speed controller includes bolt (5) and three hole nuts (4) being connected through a screw thread with bolt (5)；
Three hole nut (4) is provided with a through hole, is additionally provided with a screwed hole vertical with through hole, the screwed hole and through hole ten
Word intersects, and the connecting tube (3) passes through through hole, and the bolt (5) is connected by screwed hole with three hole nuts (4).
2. the piston-type constant-pressure funnel of combination flow speed controller according to claim 1, it is characterised in that the function funnel bottle
(2) up big and down small shape is used.
3. the piston-type constant-pressure funnel of combination flow speed controller according to claim 1 or 2, it is characterised in that the leakage
Bottle (2) outer surface struggle against provided with graduation mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621409633.9U CN206570013U (en) | 2016-12-21 | 2016-12-21 | A kind of piston-type constant-pressure funnel of combination flow speed controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621409633.9U CN206570013U (en) | 2016-12-21 | 2016-12-21 | A kind of piston-type constant-pressure funnel of combination flow speed controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206570013U true CN206570013U (en) | 2017-10-20 |
Family
ID=60062668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621409633.9U Expired - Fee Related CN206570013U (en) | 2016-12-21 | 2016-12-21 | A kind of piston-type constant-pressure funnel of combination flow speed controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206570013U (en) |
-
2016
- 2016-12-21 CN CN201621409633.9U patent/CN206570013U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171020 Termination date: 20181221 |