CN208888207U - A kind of leakproof burette - Google Patents
A kind of leakproof burette Download PDFInfo
- Publication number
- CN208888207U CN208888207U CN201821437751.XU CN201821437751U CN208888207U CN 208888207 U CN208888207 U CN 208888207U CN 201821437751 U CN201821437751 U CN 201821437751U CN 208888207 U CN208888207 U CN 208888207U
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- CN
- China
- Prior art keywords
- plunger
- rotary
- hole
- leakproof
- rotary plunger
- 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 is suitable for chemical apparatuses technical field, provides a kind of leakproof burette, the titration tube body including support frame and on support frame as described above, and the titration tube body lower end is equipped with plunger hole, is equipped with rotary plunger in the plunger hole；Plunger hole length described in the rotary plunger length >, the rotary plunger front end are equipped with groove, and rear end is equipped with rotating handle, and elastic spacing one, and plunger bore dia described in the elastic spacing one diameter > are equipped in the groove；It is equipped with through-hole in the middle part of the rotary plunger, elastic sealing element is equipped between the rotating handle and the through-hole, and be coated with lubricant on the elastic sealing element.Whereby, the utility model makes it meet titration in use, achieving the purpose that reduce leakage by the way that elastic spacing one and elastic sealing element is respectively set at rotary plunger both ends.
Description
Technical field
The utility model relates to chemical apparatuses technical field more particularly to a kind of leakproof burettes.
Background technique
In chemical experiment, it is often necessary to measure strength of fluid using titration tube body.Titration tube body is generally divided into acid
Formula titrates tube body and base buret ontology, and according to the difference of soda acid chemical property, acid buret ontology and alkali formula are titrated
There are larger differences for tube body shape.By taking traditional acid buret ontology as an example, read for convenience, general acid buret
Ontology is all made of glass, and realizes the control to fluid flow by the rotation of lower section rotary plunger, in order to reduce leakage
With prevent rotation speed too fast, rotary plunger and titration tube body junction be typically all frosting, when in use, in order to
Prevent leakage and with personal use habit problem, user can generate biggish extruding force, over time, column spinner to rotary plunger
After plug abrasion, the phenomenon of leakage not only easily occurs, and since rotary plunger is in truncated cone-shaped, squeezes too tight, also will cause and extract pole
For difficulty.Glass be it is noncrystal, different manufacturers production technologies is different, even the buret of same model, can still there is one
Fixed error, when doing chemical experiment, titrating tube body and rotary plunger can not all be matching used, if accidentally will
Titration tube body and the rotary plunger of different manufacturers are applied in combination, and can accelerate the abrasion of rotary plunger when rotated, more
It is easy to produce the phenomenon of leakage.
In summary, the existing technology has inconveniences and defects in actual use, so it is necessary to be improved.
Utility model content
For above-mentioned defect, the purpose of this utility model is to provide a kind of leakproof burette, can by
Elastic spacing one and elastic sealing element is respectively set in rotary plunger both ends, it is made to meet titration in use, reaching reduction leakage
Purpose.
To achieve the goals above, the utility model provides a kind of leakproof burette, including support frame and is located at described
Titration tube body on support frame, the titration tube body lower end are equipped with plunger hole, are equipped with rotary plunger in the plunger hole；Institute
Plunger hole length described in rotary plunger length > is stated, the rotary plunger front end is equipped with groove, and rear end is equipped with rotating handle, described
Elastic spacing one, and plunger bore dia described in the elastic spacing one diameter > are equipped in groove；It is set in the middle part of the rotary plunger
There is through-hole, elastic sealing element is equipped between the rotating handle and the through-hole, and be coated with lubricant on the elastic sealing element.
Leakproof burette according to the present utility model, the rotary plunger threshold value titration tube body side wall distance are
1.5-3mm, recess width 1.2-2.7mm, and the elastic spacing one width≤recess width.
Leakproof burette according to the present utility model, the rotary plunger end are equipped with rotary nut, the rotation spiral shell
Plunger bore dia described in cap diameter >, and the material of the rotary nut is synthetic rubber.
Leakproof burette according to the present utility model, the material of the elastic spacing one and the elastic sealing element are
The synthesized silicon rubber of acidproof alkaline.
Leakproof burette according to the present utility model, the lubricant are vaseline.
Leakproof burette according to the present utility model, titration body tube taper with a narrow upper and lower width, and the drop
Determine to be uniformly provided with scale on tube body.
The material of leakproof burette according to the present utility model, the titration tube body and the rotary plunger is high boron
Silicon.
The utility model provides a kind of leakproof burette, the buret sheet including support frame and on support frame as described above
Body, the titration tube body lower end are equipped with plunger hole, are equipped with rotary plunger in the plunger hole；Rotary plunger is in plunger hole inward turning
Turn, through-hole is equipped in the middle part of rotary plunger and realizes the control of fluid flow with this in rotary course.The rotary plunger length
Plunger hole length described in >, the rotary plunger front end are equipped with groove, and rear end is equipped with rotating handle, is equipped with elasticity in the groove
Locating part, and plunger bore dia described in the elastic spacing one diameter >；The length of rotary plunger is greater than plunger hole, facilitates processing
Groove simultaneously installs elastic spacing one, and rotary plunger left end is equipped with groove and elastic spacing one, and right end passes through elastic sealing element and column
Consent fits closely, and realizes the sealing to rotary plunger both ends with this.Through-hole, the rotation hand are equipped in the middle part of the rotary plunger
It is equipped with elastic sealing element between handle and the through-hole, and is coated with lubricant on the elastic sealing element, rotating handle drives rotation
Plunger rotation, in order to reduce frictional force, is typically coated with lubricant on elastic sealing element, facilitates the rotation of rotary plunger.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the configuration schematic diagram of the titration tube body of the utility model；
1- support frame in the figure, 2- titrate tube body, 3- rotary plunger, 4- elastic spacing one, 5- rotating handle, 6- bullet
Property sealing element, 7- through-hole, 8- scale, 9- plunger hole, 10- groove.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail, it should be understood that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Referring to Fig. 1, Fig. 2, the utility model provides a kind of leakproof burette, including support frame 1 and is located at the support
Titration tube body 2 on frame 1,2 lower end of titration tube body are equipped with plunger hole 9, are equipped with rotary plunger 3 in the plunger hole 9；
Rotary plunger 3 rotates in plunger hole 9, and through-hole 7 is equipped in the middle part of rotary plunger 3 and realizes the control of fluid flow in rotary course
System.The length of plunger hole 9 described in the length > of the rotary plunger 3,3 front end of rotary plunger are equipped with groove 10, and rear end is set
There is rotating handle 5, elastic spacing one 4 is equipped in the groove 10, and plunger hole 9 described in 4 diameter > of the elastic spacing one is straight
Diameter；The length of rotary plunger 3 is greater than plunger hole 9, facilitates processing groove 10 and installs elastic spacing one 4,3 left end of rotary plunger is set
Fluted 10 and elastic spacing one 4, right end is fitted closely by elastic sealing element 6 with plunger hole 9, is realized with this to rotary plunger
The sealing at 3 both ends.It is equipped with through-hole 7 in the middle part of the rotary plunger 3, it is close that elasticity is equipped between the rotating handle 5 and the through-hole 7
Sealing 6, and lubricant is coated on the elastic sealing element 6, rotating handle 5 drives rotary plunger 3 to rotate, in order to reduce friction
Power is typically coated with lubricant on elastic sealing element 6, facilitates the rotation of rotary plunger 3.
Preferably, 3 threshold value of rotary plunger titration 2 side wall of the tube body distance of the utility model is 1.5-3mm, recessed
10 width of slot is 1.2-2.7mm, and 4 width of the elastic spacing one≤10 width of the groove.Experimental data shows, column spinner
For plug 3 generally in truncated cone-shaped, end is thinner, and the end of rotary plunger 3 is generally extended 1.5-3mm, and ordinary priority is selected
1.5mm, 2mm or 3mm process groove 10, the width of general groove 10 is than rotation according to the outreach of 3 end of rotary plunger
The end of plunger 3 extends apart from small 0.3mm, can preferably install elastic spacing one 4 and limit rotary plunger 3
It is fixed.
In addition, 3 end of rotary plunger of the utility model is also provided with rotary nut, rotary nut diameter > institute
9 diameter of plunger hole is stated, and the material of the nut is synthetic rubber.Synthetic rubber has certain acidproof alkali ability, utilizes rotation
Turn nut, directly the end diameter of rotary plunger 3 can become larger, in use, by adjusting the elastic of rotary nut,
The tightness of rotary plunger 3 can be adjusted, while falling for rotary plunger 3 can also be prevented.
Further, the material of the elastic spacing one 4 of the utility model and the elastic sealing element 6 is acidproof alkaline
Synthesized silicon rubber.Synthesized silicon rubber elasticity with higher, meanwhile, chemical stability is stronger, other than the weak acid and weak base of part, generally not
It can be corroded, can use for a long time.
Preferably, the lubricant of the utility model is vaseline.Vaseline is common lubricating agents, low in cost, chemistry
Property is stablized, and can produce preferable lubricant effect.
In actual use, the taper with a narrow upper and lower width of titration tube body 2 of the utility model, and the buret
Scale 8 is uniformly provided on ontology 2.Tapered titration tube body 2 can be with the flowing of more precise control experimental liquid, and utilizes
Scale 8 facilitates reading.
In addition, the titration tube body 2 of the utility model and the material of the rotary plunger 3 are high borosilicate.Utilize high borosilicate
Manufactured titration tube body 2 and 3 chemical property of rotary plunger are stablized, and cost is extremely low, meanwhile, it can more intuitively read.
Specific embodiment of the present utility model: it for using common acid buret, in use, utilizes
Support frame 1 will titrate tube body 2 and fix, and titrate the taper with a narrow upper and lower width of tube body 2, and titration 2 lower end of tube body is equipped with plunger
Hole 9, plunger hole 9 is interior to be equipped with rotary plunger 3, is equipped with through-hole 7, effect of the rotary plunger 3 in rotating handle 5 in the middle part of rotary plunger 3
Lower realization rotation, realizes the opening and closing of through-hole 7, and then realizes the control to fluid flow in titration tube body 2.It will rotation
Plunger 3 is mounted in plunger hole 9, and is fixed using elastic spacing one 4 and 3 end of rotary plunger, due to 3 end of rotary plunger
Portion is equipped with groove 10, while may be implemented that rotary plunger 3 is fixed, can also prevent elastic spacing one 4 from moving left and right.
3 rear end of rotary plunger be equipped with rotating handle 5, between rotating handle 5 and through-hole 7 be equipped with elastic sealing element 6,6 sets of elastic sealing element
Connect on rotary plunger 3, may be implemented rotary plunger 3 with plunger hole 9 is even closer is bonded, leakage can also be prevented.Due to
3 both ends of rotary plunger are respectively equipped with elastic spacing one 4 and elastic sealing element 6, such user in use, rotary plunger 3
Both ends are defined, and elastic spacing one 4 and elastic sealing element 6 all have elasticity, can prevent user exert oneself it is excessive and to rotation
Plunger 3 damages, and can also prevent falling for rotary plunger 3.In real life, in order to reach better rotates effe,
The stronger lubricant of vaseline equistability is smeared generally on elastic sealing element 6, can preferably be realized to rotary plunger 3
Control.
In conclusion the utility model provides a kind of leakproof burette, including support frame and it is located on support frame as described above
Titration tube body, the titration tube body lower end is equipped with plunger hole, rotary plunger is equipped in the plunger hole；Rotary plunger exists
Rotation in plunger hole, rotary plunger middle part are equipped with through-hole and are realized the control of fluid flow with this in rotary course.The rotation
Turn plunger hole length described in plungers length >, the rotary plunger front end is equipped with groove, and rear end is equipped with rotating handle, the groove
It is interior to be equipped with elastic spacing one, and plunger bore dia described in the elastic spacing one diameter >；The length of rotary plunger is greater than plunger
Hole facilitates processing groove and installs elastic spacing one, and rotary plunger left end is equipped with groove and elastic spacing one, and right end passes through elasticity
Sealing element is fitted closely with plunger hole, realizes the sealing to rotary plunger both ends with this.Through-hole is equipped in the middle part of the rotary plunger,
It is equipped with elastic sealing element between the rotating handle and the through-hole, and is coated with lubricant on the elastic sealing element, rotates hand
Grip strip moves rotary plunger rotation, in order to reduce frictional force, is typically coated with lubricant on elastic sealing element, facilitates the rotation of rotary plunger
Turn.
Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence
In the case of, those skilled in the art work as can make various corresponding changes and modifications, but these according to the utility model
Corresponding changes and modifications all should belong to the protection scope of the utility model the attached claims.
Claims (7)
1. a kind of leakproof burette, which is characterized in that the titration tube body including support frame and on support frame as described above, institute
It states titration tube body lower end and is equipped with plunger hole, be equipped with rotary plunger in the plunger hole；
Plunger hole length described in the rotary plunger length >, the rotary plunger front end are equipped with groove, and rear end is equipped with rotation hand
Handle, the groove is interior to be equipped with elastic spacing one, and plunger bore dia described in the elastic spacing one diameter >；
It is equipped with through-hole in the middle part of the rotary plunger, elastic sealing element is equipped between the rotating handle and the through-hole, and described
Lubricant is coated on elastic sealing element.
2. leakproof burette according to claim 1, which is characterized in that the rotary plunger threshold value buret sheet
Body sidewall distance is 1.5-3mm, recess width 1.2-2.7mm, and the elastic spacing one width≤recess width.
3. leakproof burette according to claim 2, which is characterized in that the rotary plunger end is equipped with rotation spiral shell
Cap, plunger bore dia described in the rotary nut diameter >, and the material of the rotary nut are synthetic rubber.
4. leakproof burette according to claim 1, which is characterized in that the elastic spacing one and the elastic packing
The material of part is the synthesized silicon rubber of acidproof alkaline.
5. leakproof burette according to claim 1, which is characterized in that the lubricant is vaseline.
6. leakproof burette according to claim 1, which is characterized in that titration body tube cone with a narrow upper and lower width
Shape, and scale is uniformly provided on the titration tube body.
7. leakproof burette according to claim 1, which is characterized in that the titration tube body and the rotary plunger
Material be high borosilicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821437751.XU CN208888207U (en) | 2018-09-04 | 2018-09-04 | A kind of leakproof burette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821437751.XU CN208888207U (en) | 2018-09-04 | 2018-09-04 | A kind of leakproof burette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208888207U true CN208888207U (en) | 2019-05-21 |
Family
ID=66510952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821437751.XU Expired - Fee Related CN208888207U (en) | 2018-09-04 | 2018-09-04 | A kind of leakproof burette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208888207U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111413459A (en) * | 2020-05-06 | 2020-07-14 | 江苏康正生物科技有限公司 | Reagent dropwise add device that mixing of colors experiments was used in food detection |
-
2018
- 2018-09-04 CN CN201821437751.XU patent/CN208888207U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111413459A (en) * | 2020-05-06 | 2020-07-14 | 江苏康正生物科技有限公司 | Reagent dropwise add device that mixing of colors experiments was used in food detection |
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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: 20190521 Termination date: 20200904 |