CN204380708U - A kind of piston measures dropper - Google Patents
A kind of piston measures dropper Download PDFInfo
- Publication number
- CN204380708U CN204380708U CN201520000468.0U CN201520000468U CN204380708U CN 204380708 U CN204380708 U CN 204380708U CN 201520000468 U CN201520000468 U CN 201520000468U CN 204380708 U CN204380708 U CN 204380708U
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- CN
- China
- Prior art keywords
- dropper
- wall
- piston
- rubber piston
- taper
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Abstract
The utility model relates to a kind of piston and measures dropper, belong to chemical experiment accessory field, although mainly solve current existing drop tube designs can meet its user demand, but the liquid volume of taper closing in place usually causes measurement inaccurate because of complex-shaped, cause liquid measuring result to have the problem of error, described dropper outer wall one end is taper closing-in structure, and the other end is provided with projection, this dropper outer wall is cylindricality hollow body, embedded rubber piston; One end of described rubber piston is all taper closing-in structure, and close up with the taper of dropper outer wall and match, the other end is provided with finger ring; Described dropper outer wall taper closing in internal cavity profile is identical with the taper closing in internal cavity profile design of rubber piston.The utility model is novel unique, and the project organization by rubber piston can meet the instructions for use of dropper, can realize the accuracy to liquid measure in use, reduces error, decreases the operation easier of staff.
Description
Technical field
The utility model relates to a kind of piston and measures dropper, belongs to chemical experiment accessory field.
Background technology
Dropper is divided into fat tripe dropper and conventional dropper, is made up of rubber pacifier and tip glass tube, and its main application draws or adds a small amount of reagent, and draw supernatant liquor, isolates precipitation.When during use, points for attention are droppings, dropper will keep perpendicular to directly over container, avoids, must guard against handstand, can not stretch into internal tank, can not touch chamber wall.Except draw solution, tip can not contact other implements, in order to avoid impurity contamination, can not a pipe dual-purpose, common dropper is finished needs cleaning, and special dropper is not capable of washing, need manage special, be finished and just put back to original reagent bottle, during use, only do not pinch with thumb and forefinger, clamp with middle finger and the third finger.Its using method: 1. when using dropper, clutch rubber nipple, drive the air in dropper out of, then dropper is stretched in reagent bottle with finger, decontrol finger, namely reagent be inhaled into; 2. get the dropper after liquid and should keep Rubber end up, do not keep flat or be inverted, prevent solution from flowing backwards and corroding Rubber end; 3. when dripping liquid, should it be unsettledly placed on above beaker, not contact walls of beaker, in order to avoid stain dropper or cause the pollution of reagent; 4. dropper is not placed on testing stand or other places, in order to avoid stain dropper; 5. to rinse well with clear water immediately with the dropper crossed, in order to using again; 6. forbid with the reagent (dropper on drop bottle does not rinse with water) drawing other without the dropper cleaned again.
What current existing dropper was taked is one end is glue head, the other end is that taper is closed up, centre is the graduated cylindricality hollow body of band, although this drop tube designs can meet its user demand, but the liquid volume of taper closing in place usually causes measurement inaccurate because of complex-shaped, cause liquid measuring result to have error.
Utility model content
What the utility model was taked for current existing dropper be one end is glue head, the other end is that taper is closed up, centre is the graduated cylindricality hollow body of band, although this drop tube designs can meet its user demand, but the liquid volume of taper closing in place usually causes measurement inaccurate because of complex-shaped, cause liquid measuring result to have the problem of error, devise a kind of piston and measure dropper.
The technical scheme in the invention for solving the technical problem is:
This kind of piston measures dropper, and its structure comprises: dropper outer wall, rubber piston, projection, finger ring, slide block, spring; Described dropper outer wall one end is taper closing-in structure, and the other end is provided with projection, and this dropper outer wall is cylindricality hollow body, embedded rubber piston; One end of described rubber piston is all taper closing-in structure, and close up with the taper of dropper outer wall and match, the other end is provided with finger ring; Described dropper outer wall taper closing in internal cavity profile is identical with the taper closing in internal cavity profile design of rubber piston.
Described finger ring is located at the outside of dropper outer wall projection, and be provided with spring near one end of rubber piston, this spring structure matches with slide block.
Described projection is loop configuration, and projection and dropper outer wall are integral type structural design.
Described dropper outer wall is transparent resin glass, and the side of dropper outer wall indicates scale vertically, and described rubber piston is soft rubber, and described dropper outer wall and rubber piston are coaxial setting.
The utility model has the following advantages:
1. the utility model is novel unique, and the project organization by rubber piston can meet the instructions for use of dropper, can realize the accuracy to liquid measure in use, reduces error, decreases the operation easier of staff.
2. the utility model structure is simple, and easy to make, parts material is cheap, good manufacturability, and cost of manufacture is low, and application is wide.
Accompanying drawing explanation
Fig. 1 is the overall sectional view of the utility model.
Fig. 2 is the utility model partial sectional view.
Fig. 3 is the utility model partial sectional view.
In figure: 1 dropper outer wall, 2 rubber pistons, 3 projections, 4 finger rings, 5 slide blocks, 6 springs.
Detailed description of the invention
As shown in Figure 1, 2, 3: this kind of piston measures dropper, and its structure comprises: dropper outer wall 1, rubber piston 2, projection 3, finger ring 4, slide block 5, spring 6; Described dropper outer wall 1 one end is taper closing-in structure, and the other end is provided with projection 3, and this dropper outer wall 1 is cylindricality hollow body, embedded rubber piston 2; One end of described rubber piston 2 is all taper closing-in structure, and close up with the taper of dropper outer wall 1 and match, the other end is provided with finger ring 4; Described dropper outer wall 1 taper closing in internal cavity profile is identical with the taper closing in internal cavity profile design of rubber piston 2; Described finger ring establishes 4 in the outside of dropper outer wall 1 projection, and be provided with spring 6 near one end of rubber piston 2, this spring 6 structure matches with slide block 5; Described projection 3 is loop configuration, and projection 3 and dropper outer wall 1 are integral type structural design; Described dropper outer wall 1 is transparent resin glass, and the side of dropper outer wall 1 indicates scale vertically, and described rubber piston 2 is soft rubber, and described dropper outer wall 1 and rubber piston 2 are coaxial setting.
A kind of piston described by the present embodiment measures dropper, during use, finger is packed into outside pull in finger ring 4, being closed up by the taper of dropper outer wall 1 introduces in the empty body of cylindricality by liquid, in the taper closing in of rubber piston 2, liquid can replace liquid in dropper outer wall 1 taper closing in measure, the utility model is novel unique, project organization by rubber piston can meet the instructions for use of dropper, the accuracy to liquid measure can be realized in use, reduce error, decrease the operation easier of staff, the utility model structure is simple, easy to make, parts material is cheap, good manufacturability, cost of manufacture is low, application is wide.
The above, be only detailed description of the invention of the present utility model, and those of ordinary skill in the art are in the scope that the utility model discloses, and the change that can expect easily, within the protection domain that all should be encompassed in utility model.
Claims (4)
1. piston measures a dropper, and its structure comprises: dropper outer wall (1), rubber piston (2), projection (3), finger ring (4), slide block (5), spring (6); It is characterized in that: described dropper outer wall (1) one end is taper closing-in structure, and the other end is provided with projection (3), and this dropper outer wall (1) is cylindricality hollow body, embedded rubber piston (2); One end of described rubber piston (2) is all taper closing-in structure, and close up with the taper of dropper outer wall (1) and match, the other end is provided with finger ring (4); Described dropper outer wall (1) taper closing in internal cavity profile is identical with the taper closing in internal cavity profile design of rubber piston (2).
2. a kind of piston according to claim 1 measures dropper, it is characterized in that: described finger ring establishes (4) in the outside of dropper outer wall (1) projection, be provided with spring (6) near one end of rubber piston (2), this spring (6) structure matches with slide block (5).
3. a kind of piston according to claim 1 measures dropper, it is characterized in that: described projection (3) is loop configuration, and projection (3) and dropper outer wall (1) are integral type structural design.
4. a kind of piston according to claim 1 measures dropper, it is characterized in that: described dropper outer wall (1) is transparent resin glass, the side of dropper outer wall (1) indicates scale vertically, described rubber piston (2) is soft rubber, and described dropper outer wall (1) and rubber piston (2) are coaxial setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520000468.0U CN204380708U (en) | 2015-01-04 | 2015-01-04 | A kind of piston measures dropper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520000468.0U CN204380708U (en) | 2015-01-04 | 2015-01-04 | A kind of piston measures dropper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204380708U true CN204380708U (en) | 2015-06-10 |
Family
ID=53353465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520000468.0U Expired - Fee Related CN204380708U (en) | 2015-01-04 | 2015-01-04 | A kind of piston measures dropper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204380708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924152A (en) * | 2021-02-10 | 2021-06-08 | 温州职业技术学院 | Micro-dropper testing device |
-
2015
- 2015-01-04 CN CN201520000468.0U patent/CN204380708U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924152A (en) * | 2021-02-10 | 2021-06-08 | 温州职业技术学院 | Micro-dropper testing device |
| CN112924152B (en) * | 2021-02-10 | 2022-07-19 | 温州职业技术学院 | Micro-dropper testing device |
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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 |
Granted publication date: 20150610 Termination date: 20160104 |