CN206911375U - A kind of quantitative rubber head dropper - Google Patents
A kind of quantitative rubber head dropper Download PDFInfo
- Publication number
- CN206911375U CN206911375U CN201720462131.0U CN201720462131U CN206911375U CN 206911375 U CN206911375 U CN 206911375U CN 201720462131 U CN201720462131 U CN 201720462131U CN 206911375 U CN206911375 U CN 206911375U
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- CN
- China
- Prior art keywords
- glass tube
- sprue
- dropper
- hole
- rubber head
- 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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- Devices For Use In Laboratory Experiments (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses the high quantitative rubber head dropper of a kind of precise control and service life,Including rubber head,Upper dropper and lower dropper,Upper dropper includes mounting blocks and upper glass tube,Upper glass tube is arranged on mounting blocks inner bottom surface,Lower dropper includes lower glass tube,Suction nozzle and quantitative regulation apparatus,Lower glass tube bottom is provided with graduation mark,Side glass tube is provided with lower glass tube upper side,Projection is provided with the glass tube top surface of side,Perforate is provided with raised top surface,The through hole of annular is provided with side glass tube top surface position corresponding with perforate,Through hole includes outer shroud through hole,Middle ring through hole and inner ring through hole,Quantitative regulation apparatus includes piston mechanism and admission gear,Piston mechanism includes piston,Connecting rod and press head,Admission gear includes cock body and the sprue to match with through hole,Sprue includes outer shroud sprue,Middle ring sprue and inner ring sprue,The height of inner ring sprue is higher than the height of middle ring sprue,The height of middle ring sprue is higher than the height of outer shroud sprue.
Description
Technical field
It the utility model is related to a kind of quantitative rubber head dropper.
Background technology
Rubber head dropper is also known as Capsule dropper, and it is a kind of instrument for drawing or being added dropwise a small amount of liquid reagent.Rubber head is dripped
Pipe is generally made up of Capsule and glass, wherein, glass tube is used for the temporary transient storage of liquid, and rubber head is used to extrude to produce vacuum,
Draw liquid.
Existing rubber head easily sucks liquid because of operational error, produces corrosion to rubber head, rubber head can be bonded at over time
Together, damaged even to become very sticky, processing is not fallen, and can only throw away, cause to waste；In addition, volatile liquid is also easily waved
It is sent on rubber head inner surface, rubber head is caused to corrode, the service life of impression rubber head；In addition, existing rubber head dropper generally makes
Liquid is drawn and extruded with the extruding of rubber head so that the dosage of liquid is difficult to control, it is impossible to which at the uniform velocity or accurate quantitative analysis obtains
Liquid is taken out, so as to influence accuracy, use is inconvenient.
It is accordingly required in particular to a kind of precise control and the high quantitative rubber head dropper of service life, to solve in the prior art
The problem of existing.
Utility model content
The defects of the purpose of this utility model is to solve in the prior art, there is provided a kind of precise control and service life
High quantitative rubber head dropper, to solve problems of the prior art.
To achieve the above object, the technical solution of the utility model is as follows：
A kind of quantitative rubber head dropper, including rubber head, upper dropper and lower dropper, the upper dropper are arranged on rubber head bottom,
The upper dropper includes mounting blocks and upper glass tube, and the mounting blocks are set in undercut shape, and the upper glass tube is arranged on peace
Fill on block inner bottom surface, the lower dropper is arranged on the lower section of dropper, and the lower dropper includes lower glass tube, suction nozzle and quantitative tune
Regulating device, the lower glass tube bottom are provided with graduation mark, liquid storage cylinder, the lower glass tube are provided with the middle part of the lower glass tube
Side glass tube is provided with upper side, projection is provided with the side glass tube top surface, is provided with out on the raised top surface
Hole, is provided with the through hole of annular on side glass tube top surface position corresponding with perforate, the through hole include outer shroud through hole, in
Ring through hole and inner ring through hole, the quantitative regulation apparatus include piston mechanism and admission gear, and piston mechanism is arranged on side glass
On the end of pipe, the piston mechanism includes piston, connecting rod and press head, the admission gear include cock body and with through hole phase
The sprue of matching, the sprue include outer shroud sprue, middle ring sprue and inner ring sprue, and the height of the inner ring sprue is higher than middle ring
The height of sprue, the height of the middle ring sprue are higher than the height of outer shroud sprue.
In order to further realize the utility model, the mounting blocks bottom surface is provided with the groove of annular, set in the groove
It is equipped with 0 shape sealing ring.
In order to further realize the utility model, internal thread, the lower glass tube are provided with the mounting blocks medial surface
Internal thread is provided with the lateral surface of upper end, the external screw thread of the groove is engaged setting with the internal thread of lower glass tube.
In order to further realize the utility model, internal thread is provided with the perforate medial surface, on the cock body side
It is provided with the external screw thread to match with the internal thread of perforate medial surface.
In order to further realize the utility model, the piston is connected with press head by connecting rod, and the piston is set
Glass tube and it can be horizontally slipped in side along side glass tube.
In order to further realize the utility model, the outer shroud through hole, middle ring through hole are identical with the center of circle of inner ring through hole, institute
It is identical with the center of circle of inner ring sprue to state outer shroud sprue, middle ring sprue.
In order to further realize the utility model, the suction nozzle is arranged at the lower end of lower glass tube, and the suction nozzle is in arc
Shape is set.
Beneficial effect
(1) the utility model, when the liquid that rubber head dropper is drawn is volatile liquid, is prevented by being provided with upper dropper
Volatile liquid is evaporated on rubber head inner surface, and corrosion and damage is caused to rubber head, so as to improve the service life of rubber head, by setting
0 shape sealing ring is equipped with, improves the air-tightness that dropper connects with lower dropper, prevents gas leakage, that improves rubber head dropper can
By property.
(2) the utility model is provided with graduation mark by lower glass tube bottom, can accomplish quantitative liquid taking, improves real
The accuracy tested, lower glass tube middle part are provided with liquid storage cylinder, for storing the liquid drawn, prevent liquid from entering in rubber head,
Rubber head is caused to corrode, the service life of rubber head is improved, the curved setting of suction nozzle, easily picks up remaining a small amount of change in reagent bottle
Reagent is learned, reduces and wastes.
(3) the utility model is by being provided with piston mechanism, when needing accurately liquid taking, can use piston machine
Structure is taken to liquid, and it is convenient accurate to take.
(4) the utility model can control the liquid in rubber head dropper at the uniform velocity to drip, accurately by being provided with admission gear
Convenient, in use, rotation cock body makes it move upwards, outer shroud sprue will depart from outer shroud through hole to be matched, and is just had a small amount of
Air enters in rubber head dropper, and control liquid uniformly drips at a slow speed, and continuing to rotate cock body makes it move upwards, and middle ring sprue can be with
Middle ring through hole departs from matching, increases and is uniformly dripped into the air inside rubber head dropper, control liquid middling speed, continues to rotate cock body
It is set to move upwards, inner ring sprue can depart from inner ring through hole match, and it is most to enter the amount of rubber head dropper air, control liquid
Quick uniform drips, and flow velocity is controllable, easy to control.
Brief description of the drawings
Fig. 1 is the structural representation of the quantitative rubber head dropper of the utility model；
Fig. 2 is Fig. 1 A portions enlarged drawing；
Fig. 3 is the structural representation of upper dropper in the quantitative rubber head dropper of the utility model；
Fig. 4 is Fig. 3 B portions enlarged drawing；
Fig. 5 is the structural representation of piston mechanism in the quantitative rubber head dropper of the utility model；
Fig. 6 is the structural representation of admission gear in the quantitative rubber head dropper of the utility model；
Fig. 7 is the partial view of side glass tube top view in the quantitative rubber head dropper of the utility model.
Embodiment
The utility model is further described in detail below in conjunction with the accompanying drawings, these accompanying drawings are simplified signal
Figure, only illustrates basic structure of the present utility model, the direction of this specific implementation is using Fig. 1 directions as standard in a schematic way.
As shown in Figures 1 to 7, quantitative rubber head dropper of the present utility model includes rubber head 1, upper dropper 2 and lower dropper 3, its
In：
Rubber head 1 is set in ellipsoid.
Upper dropper 2 is arranged on the bottom of rubber head 1, and upper dropper 2 includes mounting blocks 21 and upper glass tube 22, and mounting blocks 21 are in
Concave shape is set, and internal thread is provided with the medial surface of mounting blocks 21, and the bottom surface of mounting blocks 21 is provided with the groove 211 of annular, groove
0 shape sealing ring 212 is provided with 211, upper glass tube 22 is arranged on the inner bottom surface of mounting blocks 21, by being provided with upper dropper 2, when
When the liquid that rubber head dropper is drawn is volatile liquid, prevents volatile liquid from evaporating on the inner surface of rubber head 1, rubber head 1 is made
Into corrosion and damage, so as to improve the service life of rubber head 1, by being provided with 0 shape sealing ring 212, dropper 2 and lower drop are improved
The air-tightness that pipe 3 connects, gas leakage is prevented, improve the reliability of rubber head dropper.
Lower dropper 3 is arranged on the lower section of dropper 2, and lower dropper 3 includes lower glass tube 31, suction nozzle 32 and quantitative regulation dress
Put, the lower bottom of glass tube 31 is provided with graduation mark 311, can accomplish quantitative liquid taking, improves the accuracy of experiment, lower glass
The middle part of pipe 31 is provided with liquid storage cylinder 312, for storing the liquid drawn, prevents liquid from entering in rubber head 1, rubber head 1 is caused
Corrosion, the service life of rubber head 1 is improved, is provided with side glass tube 313 in the lower upper side of glass tube 31, side glass tube 313 pushes up
Projection 3131 is provided with face, perforate 3132 is provided with raised 3131 top surfaces, internal thread is provided with the medial surface of perforate 3132,
The top surface of side glass tube 313 and the through hole 3133 that annular is provided with 3132 corresponding position of perforate, through hole 3133 lead to including outer shroud
Hole 31331, middle ring through hole 31332 and inner ring through hole 31333, outer shroud through hole 31331, middle ring through hole 31332 and inner ring through hole
31333 center of circle is identical, and internal thread, the external screw thread of groove 211 and lower glass tube are provided with the lower upper end lateral surface of glass tube 31
31 internal thread is engaged setting, and suction nozzle 32 is arranged at the lower end of lower glass tube 31,31 curved setting of suction nozzle, easily picks up
Remaining a small amount of chemical reagent, is reduced and wastes in reagent bottle, and quantitative regulation apparatus is arranged in side glass tube 313, quantitative regulation
Device includes piston mechanism 33 and admission gear 34, and piston mechanism 33 is arranged on the end of side glass tube 313, piston mechanism 33
Including piston 331, connecting rod 332 and press head 333, piston 331 is connected with press head 333 by connecting rod 332, piston 331
It is arranged on side glass tube and can be horizontally slipped along side glass tube, it is accurate when needing by being provided with piston mechanism 33
During ground liquid taking, liquid can be taken using piston mechanism 33, it is convenient accurate to take, and admission gear 34 includes cock body
341 and the sprue 342 that matches with through hole 3133, the internal thread phase with the medial surface of perforate 3132 is provided with the side of cock body 341
The external screw thread of matching, sprue 342 include outer shroud sprue 3421, middle ring sprue 3422 and inner ring sprue 3423, outer shroud sprue 3421,
Middle ring sprue 3422 is identical with the center of circle of inner ring sprue 3423, outer shroud sprue 3421, middle ring sprue 3422 and inner ring sprue 3423
Set in circle ring column shape, the height of inner ring sprue 3423 is higher than the height of middle ring sprue 3422, the height of middle ring sprue 3422
Degree, by being provided with admission gear 34, can control the liquid in rubber head dropper at the uniform velocity to drip higher than the height of outer shroud sprue 3421
Fall, accurate convenient, in use, rotation cock body 341 makes it move upwards, outer shroud sprue 3421 will be de- with outer shroud through hole 31331
From matching, just have a small amount of air and enter in rubber head dropper, control liquid uniformly drips at a slow speed, and continuing rotation cock body 341 makes
It is moved upwards, and middle ring sprue 3422 can depart from middle ring through hole 31332 to be matched, and is increased into the air inside rubber head dropper,
Control liquid middling speed is uniformly dripped, and continuing rotation cock body 341 makes it move upwards, the meeting of inner ring sprue 3423 and inner ring through hole
31333 depart from matching, and it is most to enter the amount of rubber head dropper air, and control liquid Quick uniform drippage, flow velocity is controllable, controlling party
Just.
Better embodiment of the present utility model is the foregoing is only, the utility model is not limited to above-mentioned embodiment party
Formula, local small structural modification is there may be in implementation process, if various changes or modifications to the utility model are not
Depart from spirit and scope of the present utility model, and belong within the scope of the claims and equivalents of the utility model, then originally
Utility model is also intended to comprising these changes and modification.
Claims (7)
1. a kind of quantitative rubber head dropper, it is characterised in that including rubber head, upper dropper and lower dropper, the upper dropper is arranged on glue
On head bottom, the upper dropper includes mounting blocks and upper glass tube, and the mounting blocks are set in undercut shape, the upper glass tube
It is arranged on mounting blocks inner bottom surface, the lower dropper is arranged on the lower section of dropper, and the lower dropper includes lower glass tube, suction nozzle
And quantitative regulation apparatus, the lower glass tube bottom is provided with graduation mark, liquid storage cylinder is provided with the middle part of the lower glass tube, described
Side glass tube is provided with lower glass tube upper side, is provided with projection on the side glass tube top surface, on the raised top surface
It is provided with perforate, the through hole of annular is provided with side glass tube top surface position corresponding with perforate, the through hole includes outer
Ring through hole, middle ring through hole and inner ring through hole, the quantitative regulation apparatus include piston mechanism and admission gear, and piston mechanism is set
On the end of side glass tube, the piston mechanism includes piston, connecting rod and press head, the admission gear include cock body and
The sprue to match with through hole, the sprue include outer shroud sprue, middle ring sprue and inner ring sprue, the height of the inner ring sprue
Higher than the height of middle ring sprue, the height of the middle ring sprue is higher than the height of outer shroud sprue.
2. quantitative rubber head dropper according to claim 1, it is characterised in that the mounting blocks bottom surface is provided with the recessed of annular
Groove, 0 shape sealing ring is provided with the groove.
3. quantitative rubber head dropper according to claim 2, it is characterised in that be provided with interior spiral shell on the mounting blocks medial surface
Line, internal thread, the internal thread phase of the external screw thread of the groove and lower glass tube are provided with the lower glass tube upper end lateral surface
It is equipped with.
4. quantitative rubber head dropper according to claim 1, it is characterised in that be provided with interior spiral shell on the perforate medial surface
Line, the external screw thread to match with the internal thread of perforate medial surface is provided with the cock body side.
5. quantitative rubber head dropper according to claim 1, it is characterised in that the piston is connected with press head by connecting rod
Connect, the piston is arranged on side glass tube and can horizontally slipped along side glass tube.
6. quantitative rubber head dropper according to claim 1, it is characterised in that the outer shroud through hole, middle ring through hole and inner ring
The center of circle of through hole is identical, and the outer shroud sprue, middle ring sprue are identical with the center of circle of inner ring sprue.
7. quantitative rubber head dropper according to claim 1, it is characterised in that the suction nozzle is arranged on the lower end of lower glass tube
Place, the curved setting of suction nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720462131.0U CN206911375U (en) | 2017-04-28 | 2017-04-28 | A kind of quantitative rubber head dropper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720462131.0U CN206911375U (en) | 2017-04-28 | 2017-04-28 | A kind of quantitative rubber head dropper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206911375U true CN206911375U (en) | 2018-01-23 |
Family
ID=61307107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720462131.0U Expired - Fee Related CN206911375U (en) | 2017-04-28 | 2017-04-28 | A kind of quantitative rubber head dropper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206911375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380256A (en) * | 2018-05-12 | 2018-08-10 | 吴群欣 | A kind of quartz suction pipe |
-
2017
- 2017-04-28 CN CN201720462131.0U patent/CN206911375U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380256A (en) * | 2018-05-12 | 2018-08-10 | 吴群欣 | A kind of quartz suction pipe |
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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: 20180123 Termination date: 20200428 |