CN106268996B - A kind of rubber head dropper - Google Patents
A kind of rubber head dropper Download PDFInfo
- Publication number
- CN106268996B CN106268996B CN201610869562.9A CN201610869562A CN106268996B CN 106268996 B CN106268996 B CN 106268996B CN 201610869562 A CN201610869562 A CN 201610869562A CN 106268996 B CN106268996 B CN 106268996B
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- China
- Prior art keywords
- dropper
- rubber head
- sliding rail
- elastic sliding
- putting groove
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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
- B01L3/02—Burettes; Pipettes
- B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
- B01L3/0213—Accessories for glass pipettes; Gun-type pipettes, e.g. safety devices, pumps
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- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices For Use In Laboratory Experiments (AREA)
- Closures For Containers (AREA)
Abstract
The present invention relates to experimental teaching field, in particular to a kind of rubber head dropper.Including cutting ferrule, rubber head, dropper, suction nozzle, article putting groove, quantitative lid and limiting piston；Cutting ferrule is located at the top of rubber head, and rubber head bottom connects dropper Single port, and dropper another port connects suction nozzle；Dropper is made of two arc glass pieces and two elastic sliding rails, and arc glass piece is arranged and is sequentially connected with elastic sliding rail interval, forms the dropper of cylindrical shape；Limiting piston is equipped in dropper, the outer diameter of limiting piston and the internal diameter of dropper are equal；Arc glass on piece is carved with scale along dropper axial direction；Elastic sliding rail is equipped with several snapclose sheets；Dropper top is equipped with article putting groove and quantitative lid；Plane where article putting groove notch is perpendicular to dropper and towards suction nozzle direction；Quantitative lid is mounted in article putting groove.The present invention is not only able to achieve the quantitative liquid getting of convenient type, but also a possibility that can reduce people's being corroded property liquid corrosion finger, safe and practical.
Description
[technical field]
The present invention relates to experimental teaching field, in particular to a kind of rubber head dropper.
[background technique]
Rubber head dropper is also known as Capsule dropper, it is a kind of instrument for drawing or being added dropwise a small amount of liquid reagent.It is using
There are problems that two in the process, first, being squeezed with index finger and thumb by the soakage for being difficult to control reagent when rubber head, reagent flow can be made
Enter in rubber head；Second, rubber head dropper can not quantitatively draw reagent.The strong acid such as the concentrated sulfuric acid, concentrated nitric acid liquid can only use glass system
The material liquid relief that product etc. are not corroded.It needs batch that a certain amount of strong acid liquid is added in the analysis of some experimental determinations, such as uses
When potassium dichromate oxidation Outside Heating Method measures the soil organism, need to be added 5 milliliters of concentrated sulfuric acids.For in the prior art, patent
Number for 201620053741.0 a kind of rubber head dropper for providing of patent, including rubber head, upper dropper and lower dropper, the rubber head with
Connection at the top of the upper dropper, is provided with external screw thread on the lateral wall of the upper dropper lower part, in the lower dropper upper inside wall
It is provided with internal screw thread, the upper dropper and lower dropper are threadedly coupled, are provided with limited block on the inner wall of the lower dropper, further include
Piston, the outer diameter of the piston is equal with lower dropper internal diameter, the piston be located at the upper dropper lower end surface and limited block it
Between.The advantages of technical solution is quantitative absorption reagent to may be implemented, while can enter rubber head internal corrosion glue to avoid liquid flow
Head.But disadvantage is that will quantitatively draw reagent when, this rubber head dropper, which can only be realized, once oozes a drop reagent, and
It when measuring a large amount of samples, is easy to make one operation fatigue, reduces experimental precision, or even generate fault, strong acid liquid is caused to contact
To the body of experimenter.In addition, most of rubber head dropper is made using ordinary glass material, it occur frequently that not in laboratory
Carefully rubber head dropper is dropped to the ground, rubber head dropper is easy to break.Because simple glass material hardness is big, lack elasticity,
It is frangible, so whole be difficult to obtain protection using the rubber head dropper that simple glass is made.Therefore, it is necessary to design a kind of glue
Head dropper, can facilitate can also avoid corrosive liquids from touching the body of experimenter while quantitative liquid getting, and be not easy
It is broken into pieces, the experimental implementation suitable for laboratory.
[summary of the invention]
In view of the foregoing, it is necessary to provide a kind of rubber head dropper, which is provided with snapclose sheet, quantitative lid and limit
Position piston, is not only able to achieve the quantitative liquid getting of convenient type, additionally it is possible to which when reducing using rubber head dropper, being corroded property of people liquid is rotten
A possibility that losing finger, it is safe and practical.
In order to achieve the above objectives, the technical scheme adopted by the invention is that: a kind of rubber head dropper, including cutting ferrule, rubber head, drop
Pipe, suction nozzle, article putting groove, quantitative lid and limiting piston；The cutting ferrule is located at the top of rubber head, and rubber head bottom connects dropper one end
Mouthful, dropper another port connects suction nozzle；The dropper is made of two arc glass pieces and two elastic sliding rails, arc glass piece and bullet
Property sliding rail interval is arranged and is sequentially connected, and forms the dropper of cylindrical shape；Limiting piston is equipped in the dropper, the limit is lived
The outer diameter of plug and the internal diameter of dropper are equal；The arc glass on piece is carved with scale along dropper axial direction；The elasticity sliding rail
Several snapclose sheets are equipped with, and its inner surface is equipped with the sliding rail along dropper axial direction；The limiting piston passes through the sliding rail
It is slidably connected with elastic sliding rail；Each snapclose sheet is flushed with corresponding graduation mark；The dropper top is equipped with article putting groove
With quantitative lid；Plane where the article putting groove notch is perpendicular to dropper and towards suction nozzle direction；The quantitative lid, which is mounted on, to be set
In object slot；The quantitative lid is made of extensible member, and quantitative lid can extend along dropper axial direction and be arranged in above snapclose sheet,
By pressing quantitative lid so that snapclose sheet is squeezed to elastic sliding rail, and formation is downward for limiting limiting piston in elastic sliding rail
Movable protrusion.
Further, volume of the dropper between two adjacent graduation marks is 1 milliliter.
Further, the two arc glasses piece and suction nozzle material therefor are tempered glass.
Further, the size of the two arc glasses piece is identical, and the size of two elastic sliding rails is also identical.
Further, outer surface of the snapclose sheet perpendicular to elastic sliding rail.
Further, the quantitative lid and elastic sliding rail are elastic material production.
The invention has the following advantages:
1. the present invention is provided with limiting piston in dropper, when not using dropper, limiting piston with close to the first of rubber head
Graduation mark flushes；When using dropper and complete extruding rubber head, limiting piston is the bottom for being in dropper, the setting of limiting piston
Enable dropper that reagent is all saturated with dropper when drawing reagent, the sucking reagent that can be quantified, and can be conveniently quantitative
Ooze the premise of reagent.
2. the present invention is provided with snapclose sheet in the outer surface of elastic sliding rail, each snapclose sheet is neat with corresponding graduation mark
Flat, the effect of snapclose sheet is by pressing quantitative lid so that snapclose sheet is squeezed to elastic sliding rail, and is formed and used in elastic sliding rail
In the amount of the protrusion that moves downward of limitation limiting piston, piston to reagent between elasticity sliding rail high spot be that reagent oozes dropper
Amount, can fixed quantity take liquid, convenient for taking liquid.
3. the present invention is provided with article putting groove and quantitative lid, article putting groove is located at after pulling out quantitative lid for placing quantitative lid
The top of snapclose sheet, can be by pressing quantitative lid come so that snapclose sheet is pressed into elastic sliding rail, avoidable people directly contact dropper
Outer surface, will not be corroded by the reagent of strong acid or highly basic, it is safe and practical.
4. elastic sliding rail of the invention, suction nozzle are made using tempered glass, when tempered glass is destroyed by external force, fragment
It can be not easy to cause serious injury human body at the similar broken little particle in cellular obtuse angle.And there is high intensity, condition of equivalent thickness
Tempered glass impact strength be 3-5 times of simple glass, bending strength is 3-5 times of simple glass.Tempered glass also has
There is good thermal stability, the temperature difference that can be born is 3 times of simple glass, can bear 300 DEG C of difference variation.
5. the present invention is provided with cutting ferrule, it can be used for placing the scraps of paper for designating the drawn reagent of rubber head dropper, will not make
It is chaotic between rubber head dropper to use, influence experiment effect.
[Detailed description of the invention]
Fig. 1 is a kind of structural schematic diagram of rubber head dropper of the present invention.
Main element symbol description
In figure: 1. cutting ferrules；2. rubber head；3. dropper；4. snapclose sheet；5. limiting piston；6. suction nozzle；7. article putting groove；8. quantitative
Lid.
The present invention that the following detailed description will be further explained with reference to the above drawings.
[specific embodiment]
Referring to Fig. 1, in a kind of better embodiment of the invention, a kind of rubber head dropper, including a cutting ferrule 1, a glue
First 2, one dropper 3, a suction nozzle 6, an article putting groove 7, a certain amount of lid 8 and a limiting piston 5.The cutting ferrule 1 is located at the top of rubber head 2
Portion, cutting ferrule 1 can be used for placing the scraps of paper for designating the drawn reagent of rubber head dropper, and people is facilitated to differentiate used rubber head drop
Pipe, use of avoiding confusion.2 bottom of rubber head connects 3 Single port of dropper, and 3 another port of dropper connects suction nozzle 6；Rubber head 2,3 and of dropper
Suction nozzle 6 connects being aligned, conducive to the absorption of reagent.The dropper 3 is made of two arc glass pieces and two elastic sliding rails, arc glass
Piece is arranged and is sequentially connected with elastic sliding rail interval, forms the dropper 3 of cylindrical shape；This shape dropper 3 is tried when drawing reagent
Agent is easier to be inhaled into.The arc glass on piece is carved with scale along 3 axial direction of dropper；And two dropper 3 between adjacent graduation mark
Volume be 1 milliliter.The elasticity sliding rail inner surface is equipped with the sliding rail along dropper axial direction, the outer surface of the elasticity sliding rail
It is equipped with several snapclose sheets 4；Each snapclose sheet 4 is flushed with corresponding graduation mark；Snapclose sheet 4 is perpendicular to elastic sliding rail
Outer surface；Elastic sliding rail is elastic material production, so that snapclose sheet 4 is easy to squeeze to elastic sliding rail, and the shape in elastic sliding rail
At protrusion, i.e. dropper 3 has casting lug thereon at the plane of corresponding graduation mark, conducive to sample is quantitatively dripped.The ruler of the two arc glasses piece
Very little size is identical, and the size of two elastic sliding rails is also identical；The aesthetic feeling of rubber head dropper can be increased.
It is equipped with limiting piston 5 in the dropper 3, the outer diameter of the limiting piston 5 is equal with the internal diameter of dropper 3 and described
Limiting piston 5 is slidably connected by the sliding rail of elastic sliding rail inner surface with elastic sliding rail, and limiting piston may make to slide more
It is smooth.When not using dropper 3, limiting piston 5 is flushed with the first graduation mark close to rubber head 2；Use dropper 3 and extruding completely
When rubber head 2, limiting piston 5 will be snapped down to the bottom of dropper 3.The setting of limiting piston 5 so that dropper 3 when drawing reagent,
Reagent can be all saturated with to dropper 3, the sucking reagent that can be quantified is the premise that conveniently can quantitatively ooze reagent；Particularly,
Under the collective effect of limiting piston 5 and snapclose sheet 4, reagent can be oozed quantitatively, until the reagent in dropper 3 is all dripped off,
Conventional efficient can be improved.
The top of the elasticity sliding rail outer surface is equipped with article putting groove 7 and quantitative lid 8, flat where 7 notch of article putting groove
Face is perpendicular to dropper 3 and towards 6 direction of suction nozzle；Article putting groove 7 is all soaked for placing the quantitative lid 8, and in rubber head dropper
When entering imbibition in reagent bottle, article putting groove 7, which may act as supporting element, prevents rubber head dropper from entirely falling in reagent bottle.The quantitative lid 8
It is mounted in article putting groove 7；The quantitative lid 8 is made of extensible member, and quantitative lid 8 can extend and be arranged along 3 axial direction of dropper
Above snapclose sheet 4, by pressing quantitative lid 8 snapclose sheet 4 is protruded into dropper 3, it is living downwards for limiting limiting piston 5
It is dynamic.The quantitative lid 8 and elastic sliding rail are elastic material production, and quantitative lid 8 is identical with the elastic size of sliding rail.From setting
After pulling out quantitative lid 8 in object slot 7, by pressing quantitative lid 8 snapclose sheet 4 can be squeezed to elastic sliding rail at this time, and in elasticity
The protrusion moveed downward for limiting limiting piston 5 is formed in sliding rail, be can avoid people during pressing snapclose sheet 4 and is directly connect
The outer surface for touching dropper, will not be corroded by the reagent of strong acid or highly basic, safe and practical.
The two arc glasses piece and suction nozzle material therefor are tempered glass, are different from other simple glasses, tempered glass
There is good thermal stability, there is high intensity；Especially tempered glass is non-breakable.It is replaced in the lab using tempered glass
Simple glass makes rubber head dropper, can reduce the turnover rate of rubber head dropper, effectively extends the service life of rubber head dropper.
The present invention can facilitate the body that corrosive liquids can also be avoided to touch experimenter while quantitative liquid getting, and
And be not easy to be broken into pieces, cost performance is high, is worth promoting.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (6)
1. a kind of rubber head dropper, it is characterised in that: live including cutting ferrule, rubber head, dropper, suction nozzle, article putting groove, quantitative lid and limit
Plug；The cutting ferrule is located at the top of rubber head, and rubber head bottom connects dropper Single port, and dropper another port connects suction nozzle；The drop
Pipe is made of two arc glass pieces and two elastic sliding rails, and arc glass piece is arranged and is sequentially connected with elastic sliding rail interval, is formed
The dropper of cylindrical shape；Limiting piston is equipped in the dropper, the outer diameter of the limiting piston and the internal diameter of dropper are equal；It is described
Arc glass on piece is carved with scale along dropper axial direction；The elasticity sliding rail is equipped with several snapclose sheets, and in elastic sliding rail
Surface forms the sliding rail along dropper axial direction；The limiting piston is slidably connected by the sliding rail and elastic sliding rail；It is each
The snapclose sheet is flushed with corresponding graduation mark；The dropper top is equipped with article putting groove and quantitative lid；The article putting groove notch
The plane at place is perpendicular to dropper and towards suction nozzle direction；The quantitative lid is mounted in article putting groove；The quantitative lid is by stretching
Part composition, and quantitative lid can extend along dropper axial direction and be arranged in above snapclose sheet, by pressing quantitative lid so that clamping lock
Piece is squeezed to elastic sliding rail, and the protrusion moveed downward for limiting limiting piston is formed in elastic sliding rail.
2. a kind of rubber head dropper as described in claim 1, it is characterised in that: volume of the dropper between two adjacent graduation marks
It is 1 milliliter.
3. a kind of rubber head dropper as described in claim 1, it is characterised in that: the two arc glasses piece and suction nozzle material therefor
For tempered glass.
4. a kind of rubber head dropper as described in claim 1, it is characterised in that: the size phase of the two arc glasses piece
Together, the size of two elastic sliding rails is also identical.
5. a kind of rubber head dropper as described in claim 1, it is characterised in that: appearance of the snapclose sheet perpendicular to elastic sliding rail
Face.
6. a kind of rubber head dropper as described in claim 1, it is characterised in that: the quantitative lid and elastic sliding rail are elastic material
Material production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610869562.9A CN106268996B (en) | 2016-09-29 | 2016-09-29 | A kind of rubber head dropper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610869562.9A CN106268996B (en) | 2016-09-29 | 2016-09-29 | A kind of rubber head dropper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106268996A CN106268996A (en) | 2017-01-04 |
| CN106268996B true CN106268996B (en) | 2019-01-08 |
Family
ID=57716560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610869562.9A Active CN106268996B (en) | 2016-09-29 | 2016-09-29 | A kind of rubber head dropper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106268996B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321401B (en) * | 2017-07-04 | 2019-09-24 | 李芳华 | A kind of pipette of quantitative liquid suction |
| CN110133176A (en) * | 2019-06-06 | 2019-08-16 | 何耀 | A kind of method of rapid titration analysis |
| CN110201731A (en) * | 2019-06-18 | 2019-09-06 | 佛山科学技术学院 | A kind of dropper |
| CN114414749B (en) * | 2021-12-14 | 2022-12-13 | 江苏佳信检测技术有限公司 | Method for detecting bacterial count in liquid food and extraction equipment thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2491814A1 (en) * | 2009-10-19 | 2012-08-29 | Yonwoo Co., Ltd | Liquid dropper allowing quantitative withdrawal, and a cosmetic container equipped with the same |
| CN205109671U (en) * | 2015-10-20 | 2016-03-30 | 山东科技大学 | Rubber head burette |
| CN205323802U (en) * | 2016-01-20 | 2016-06-22 | 重庆电讯职业学院 | Rubber head burette |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07256121A (en) * | 1994-03-23 | 1995-10-09 | Mitsubishi Heavy Ind Ltd | Quantitative pipette for cosmic experiment |
-
2016
- 2016-09-29 CN CN201610869562.9A patent/CN106268996B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2491814A1 (en) * | 2009-10-19 | 2012-08-29 | Yonwoo Co., Ltd | Liquid dropper allowing quantitative withdrawal, and a cosmetic container equipped with the same |
| CN205109671U (en) * | 2015-10-20 | 2016-03-30 | 山东科技大学 | Rubber head burette |
| CN205323802U (en) * | 2016-01-20 | 2016-06-22 | 重庆电讯职业学院 | Rubber head burette |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106268996A (en) | 2017-01-04 |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181214 Address after: 542800 No. 1 Xindu Industrial Avenue, Babu District, Hezhou City, Guangxi Zhuang Autonomous Region Applicant after: Guangxi Nan Bazai Science and Technology Ltd. Address before: 530022 No. 405, Unit 3, Building 19, No. 38-18 Xinzhu Road, Qingxiu District, Nanning City, Guangxi Zhuang Autonomous Region Applicant before: Li Bailin |
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Effective date of registration: 20201126 Address after: 9 Jianshe East Road, Babu District, Hezhou City, Guangxi Zhuang Autonomous Region Patentee after: Market supervision and Administration Bureau of Babu District, Hezhou City Address before: 542800 No. 1 Xindu Town Industrial Avenue, Babu District, Hezhou City, Guangxi Zhuang Autonomous Region Patentee before: GUANGXI NANYIZAI SCIENCE & TECHNOLOGY Co.,Ltd. |