CN205413075U - Quantitative burette anticorrosives - Google Patents
Quantitative burette anticorrosives Download PDFInfo
- Publication number
- CN205413075U CN205413075U CN201620136934.2U CN201620136934U CN205413075U CN 205413075 U CN205413075 U CN 205413075U CN 201620136934 U CN201620136934 U CN 201620136934U CN 205413075 U CN205413075 U CN 205413075U
- Authority
- CN
- China
- Prior art keywords
- glass tubing
- anticorrosion
- liquid
- band stopple
- glue 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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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model discloses a quantitative burette anticorrosives, a serial communication port, include: the glass pipe is provided with the scale on it for the measurement volume, buffering ball, it sets up at glass pipe middle part to and side pipe lower part, the slowly -releasing structure, it sets up the upper portion at the glass pipe for control liquid flow output. The utility model discloses an improve rubber head drip tube's structure, mark the volume scale on the glass pipe, realized the accurate measurement of liquid, it prevents that the gluey head of liquid suck -back income from producing the corruption to set up buffering ball on glass manages the body, through the absorption and accurate control of gluing head and slowly -releasing structure realization liquid, it is easy and simple to handle, low cost.
Description
Technical field
This utility model relates to a kind of anticorrosion quantitative dropper, belongs to chemical experiment technique field.
Background technology
Glue head dropper is experimental apparatus commonly used in chemical laboratory, for pipetting of a small amount of chemical reagent, is made up of glass tubing and glue head.Wherein, glass tubing is for the temporary transient storage of liquid, and glue head produces vacuum for extruding, draws liquid.The glass tubing of glue head dropper does not the most possess scale, it is impossible to carry out accurately measuring of liquid volume, and glue head easily sucks liquid because of operational error, glue head produces corrosion, and glue head of long duration can stick together, and breakage even becomes very thickness, process not fall, can only throw away, cause waste.
Utility model content
This utility model has designed and developed a kind of anticorrosion quantitative dropper, for overcoming existing glue head easily to suck the defect that liquid causes glue head to corrode by mistake.
The technical scheme that this utility model provides is:
Glass tubing, is provided with scale, for metered volume；
Buffering ball, it is arranged in the middle part of glass tubing；And
Release structures, it is arranged on the top of glass tubing, is used for controlling liquid outflow amount.
Preferably, described glass tubing is provided with side pipe, and it is between buffering ball and release structures, the glass tubing described in connection.
Preferably, described side pipe is provided with glue head, is used for sucking liquid.
Preferably, described buffering ball is arranged at above described glass tubing maximum scale, prevents described glue head from corroding.
Preferably, described release structures includes: band stopple, spring and the body of rod, and described band stopple is arranged on glass tubing upper end, for sealed glass tube；The described body of rod is through the through hole of band stopple, and the upper end of the body of rod is pedestal, and lower end is spheroid；Described spring is compressed between pedestal and band stopple.
Preferably, described spheroid is arranged at below band stopple；When unused state, spheroid contacts with band stopple, and described band stopple lower contact surface is sphere, it is simple to contact.
Preferably, described sphere diameter is slightly larger than the diameter of described band stopple mesopore, and is less than the internal diameter of glass tubing.
Preferably, described connecting rod material is plastics or metal.
Described in the utility model provide the benefit that: by improving the structure of glue head dropper, note volume markings at glass tubing subscript, it is achieved that the accurate metering of liquid；Arranging buffering ball on glass tubing body prevents liquid suck-back from entering the generation corrosion of glue head；Realize the absorption of liquid by glue head and release structures and accurately control, easy and simple to handle, with low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of anticorrosion quantitative dropper described in the utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail, to make those skilled in the art can implement according to this with reference to description word.
As it is shown in figure 1, the lower end diameter of described glass tubing 110 is gradually reduced, and it is provided with volume markings accurately, for the metering of liquid volume；Described glass tubing 110 is provided with side pipe 130, and it is between release structures 150 and buffering ball 120；It is provided with glue head 140 on described side pipe 130, is used for drawing liquid.
Described buffering ball 120 is arranged at above scale, and below side pipe 130, buffering ball 120 volume is close with glue head 140 volume, it is possible to effectively prevents liquid suck-back from entering glue head 140, stops the corrosion of glue head 140.
The volume of described glue head 140, slightly larger than the volume of tip glass tubing maximum liquid scale, is used for drawing liquid, and glue head 140 material is elastic polymer material, preferably rubber.
Described release structures 150 is arranged at the top of glass tubing 110, is used for controlling liquid outflow amount；Release structures 150 is made up of band stopple 155, spring 154, connecting rod 152, spheroid 153 and pedestal 151, and spring 154 one end is resisted against the top of band stopple 155, and one end is resisted against the bottom of pedestal 151, and pedestal 151 is connected with spheroid 153 by connecting rod 152；The material of pedestal 151, connecting rod 152 and spheroid 153 includes: plastics or metal.
The diameter of spheroid 153 is slightly larger than the diameter of band stopple 155 mesopore, it is possible to combine closely with band stopple 155 lower spherical, and the diameter of spheroid 153 is less than tip glass tubing main diameter.
Pinch glue head 140 and get rid of gas in dropper, the end opening of glass tubing 110 is immersed liquid internal to be inhaled, unclamp glue head 140, due to internal negative pressure, liquid is inhaled in tip glass tubing, existence due to buffering ball 120, liquid maloperation is prevented to suck glue head 140, now, in dropper, liquid level exceedes maximum volume graduation mark, press with finger pedestal 151, the pressure extrusion spring 154 produced, pass to spheroid 153 by connecting rod 152 simultaneously, spheroid 153 is made to leave band stopple 155, gap is produced between spheroid 153 and band stopple 155, air enters dropper top via the gap between the mesopore of connecting rod 152 and band stopple 155, ullage air pressure is made to increase, liquid is discharged due to action of gravity；151 dynamics sizes and the length of time are pressed, it is convenient to by level control at arbitrary scale, decline the difference of scale by liquid level before and after pressing pedestal, the exact volume oozing liquid can be calculated by finger.
By improving the structure of glue head dropper, note volume markings at tip glass tubing subscript, it is achieved the accurate metering of liquid；Arranging buffering ball prevents liquid suck-back from entering the generation corrosion of glue head；Realize the absorption of liquid by glue head and pressure release structures and accurately control, easy and simple to handle, with low cost.
Although embodiment of the present utility model is disclosed as above, but it is not restricted in description and embodiment listed utilization, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, it is easily achieved other amendment, therefore, under the general concept limited without departing substantially from claim and equivalency range, this utility model is not limited to specific details and shown here as the legend with description.
Claims (7)
1. an anticorrosion quantitative dropper, it is characterised in that including:
Glass tubing, is provided with scale, for metered volume；
Buffering ball, it is arranged in the middle part of glass tubing；And
Release structures, it is arranged on the top of glass tubing, is used for controlling liquid outflow amount.
Anticorrosion quantitative dropper the most according to claim 1, it is characterised in that described glass tubing is provided with side pipe, it is between buffering ball and release structures, the glass tubing described in connection.
Anticorrosion quantitative dropper the most according to claim 2, it is characterised in that be provided with glue head on described side pipe, is used for sucking liquid.
Anticorrosion quantitative dropper the most according to claim 3, it is characterised in that described buffering ball is arranged at above described glass tubing maximum scale, prevents described glue head from corroding.
Anticorrosion quantitative dropper the most according to claim 1, it is characterised in that described release structures includes: band stopple, spring and the body of rod, described band stopple is arranged on glass tubing upper end, for sealed glass tube；The described body of rod is through the through hole of band stopple, and the upper end of the body of rod is pedestal, and lower end is spheroid；Described spring is compressed between pedestal and band stopple.
Anticorrosion quantitative dropper the most according to claim 5, it is characterised in that described spheroid is arranged at below band stopple；When unused state, spheroid contacts with band stopple, and described band stopple lower contact surface is sphere, it is simple to contact.
Anticorrosion quantitative dropper the most according to claim 5, it is characterised in that described sphere diameter is slightly larger than the diameter of described band stopple mesopore, and is less than the internal diameter of glass tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620136934.2U CN205413075U (en) | 2016-02-22 | 2016-02-22 | Quantitative burette anticorrosives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620136934.2U CN205413075U (en) | 2016-02-22 | 2016-02-22 | Quantitative burette anticorrosives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205413075U true CN205413075U (en) | 2016-08-03 |
Family
ID=56541536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620136934.2U Expired - Fee Related CN205413075U (en) | 2016-02-22 | 2016-02-22 | Quantitative burette anticorrosives |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205413075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020088077A1 (en) * | 2018-10-31 | 2020-05-07 | 朱勇金 | Cleaning and wringing device for flat mop |
-
2016
- 2016-02-22 CN CN201620136934.2U patent/CN205413075U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020088077A1 (en) * | 2018-10-31 | 2020-05-07 | 朱勇金 | Cleaning and wringing device for flat mop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160803 Termination date: 20170222 |