CN205323802U - Rubber head burette - Google Patents
Rubber head burette Download PDFInfo
- Publication number
- CN205323802U CN205323802U CN201620053741.0U CN201620053741U CN205323802U CN 205323802 U CN205323802 U CN 205323802U CN 201620053741 U CN201620053741 U CN 201620053741U CN 205323802 U CN205323802 U CN 205323802U
- Authority
- CN
- China
- Prior art keywords
- dropper
- burette
- piston
- glue head
- brood lac
- 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
Links
Abstract
The utility model discloses a rubber head burette, including gluing the head, going up burette and lower burette, glue the head with it connects to go up the burette top, be provided with the external screw thread on the lateral wall of last burette lower part, be provided with the internal thread down on the inner wall of burette upper portion, go up a burette and a lower pipe thread connection, be provided with the stopper on the inner wall of lower burette, still include the piston, the external diameter of piston is with the burette internal diameter is equal down, the piston is located go up between burette lower part terminal surface and the stopper. The utility model relates to a rubber head burette of reagent is absorb to individual ration.
Description
Technical field
This utility model relates to experimental teaching field, is specifically related to one brood lac dropper。
Background technology
Glue head dropper is also known as Capsule dropper, and it is a kind of instrument for drawing or drip a small amount of liquid reagent。In use there is two problems, one, when extruding glue head with thumb and forefinger, be difficult to control to the suction volume of reagent, reagent can be made to flow in glue head, cause that glue head is corroded, its two, reagent can not quantitatively be drawn by glue head dropper。
Utility model content
This utility model purpose is to provide one brood lac dropper, overcomes glue head dropper can not quantitatively draw the defect of reagent。
This utility model is realized by techniques below means: one brood lac dropper, including glue head, upper dropper and lower dropper, described glue head is connected with described upper dropper top, the lateral wall of described upper dropper bottom is provided with external screw thread, described lower dropper upper inside wall is provided with female thread, described upper dropper and lower dropper are threaded, the inwall of described lower dropper is provided with limited block, also include piston, the external diameter of described piston is equal with lower dropper internal diameter, and described piston is on described between dropper lower end surface and limited block。
What reach has the technical effect that, described upper dropper is threadeded with lower dropper, can determine uptake by rotating upper dropper according to the amount of required absorption reagent。Described piston is the valve controlling gas flowing, when pinching glue head with forefinger and thumb, gas in lower dropper discharges, when described piston drops on limited block time, in lower dropper, expellant gas volume is just equal with the amount of required absorption reagent, after forefinger and thumb unclamp, reagent can flow into lower dropper。
Further, piston is made up of elastomeric material, is so conducive to the up and down motion of piston。
Further, the external wall of upper portion of described lower dropper is provided with scale, it is possible to by the uptake of scale fixating reagent。
Further, being provided with a sealing ring between described lower dropper top and upper dropper bottom, described sealing ring can prevent gas from upper dropper and lower dropper joint loss。
Further, described lower dropper bottom is cone。
Further, the thickness of described piston is 5-10mm, and the thickness of piston should be less than the distance between the lower edge of dropper and limited block, and the motion of piston can make the gas in lower dropper discharge。
Further, described glue head is provided with a pore, and described pore is used for balancing pressure。
The beneficial effects of the utility model are: one brood lac dropper of this utility model, it is possible to achieve quantitatively draw reagent, and liquid can be avoided to flow into glue head internal corrosion glue head simultaneously。
Accompanying drawing explanation
Fig. 1 is the structural representation of one brood lac dropper of this utility model；
In FIG, 1, glue head；2, upper dropper；3, lower dropper；4, limited block；5, piston；6, scale；7, sealing ring；8, pore。
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail。
One brood lac dropper as shown in Figure 1, including glue head 1, upper dropper 2 and lower dropper 3, described glue head 1 is connected with described upper dropper 2 top；The lateral wall of described upper dropper 2 bottom is provided with external screw thread, the inwall on described lower dropper 3 top is provided with female thread, described upper dropper 2 and lower dropper 3 are threaded, a sealing ring 7 it is provided with between described lower dropper 3 top and upper dropper 2 bottom, described lower dropper 3 bottom is cone, and the external wall of upper portion of described lower dropper 3 is provided with scale 6；The inwall of described lower dropper 3 is provided with limited block 4, also including piston 5, the external diameter of described piston 5 is equal with lower dropper 3 internal diameter, and described piston 5 is on described between dropper 2 lower end surface and limited block 4, described piston 5 is made up of elastomeric material, and the thickness of described piston 5 is 5-10mm；Described glue head 1 top is provided with a pore 8。
Using method and the operation principle of one brood lac dropper of this utility model are as follows: first rotate upper dropper, reach the scale corresponding to amount of reagent of required absorption, then glue head is pinched with forefinger and thumb, air is made to discharge, then lower dropper is put in reagent bottle, again forefinger and thumb are unclamped, in the container held needed for glue head dropper being moved to after drawing reagent。
The skilled worker of the industry it should be recognized that; this utility model is not restricted to the described embodiments; being only intended to described in above-described embodiment and description illustrates principle of the present utility model; under the premise without departing from this utility model principle and scope; this utility model also can have various changes and modifications, and these changes and improvements broadly fall within the scope of claimed this utility model。
Claims (7)
1. one brood lac dropper, including glue head (1), upper dropper (2) and lower dropper (3), described glue head (1) is connected with described upper dropper (2) top, it is characterized in that: the lateral wall of described upper dropper (2) bottom is provided with external screw thread, described lower dropper (3) upper inside wall is provided with female thread, described upper dropper (2) and lower dropper (3) are threaded, the inwall of described lower dropper (3) is provided with limited block (4), also include piston (5), the external diameter of described piston (5) is equal with lower dropper (3) internal diameter, described piston (5) is positioned between described upper dropper (2) lower end surface and limited block (4)。
2. one brood lac dropper according to claim 1, it is characterised in that piston (5) is made up of elastomeric material。
3. one brood lac dropper according to claim 1, it is characterised in that the external wall of upper portion of described lower dropper (3) is provided with scale (6)。
4. one brood lac dropper according to claim 1, it is characterised in that be provided with a sealing ring (7) between described lower dropper (3) top and upper dropper (2) bottom。
5. one brood lac dropper according to claim 1, it is characterised in that described lower dropper (3) bottom is cone。
6. one brood lac dropper according to claim 1, it is characterised in that the thickness of described piston (5) is 5-10mm。
7. one brood lac dropper according to claim 1, it is characterised in that described glue head (1) top is provided with a pore (8)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620053741.0U CN205323802U (en) | 2016-01-20 | 2016-01-20 | Rubber head burette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620053741.0U CN205323802U (en) | 2016-01-20 | 2016-01-20 | Rubber head burette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205323802U true CN205323802U (en) | 2016-06-22 |
Family
ID=56196842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620053741.0U Expired - Fee Related CN205323802U (en) | 2016-01-20 | 2016-01-20 | Rubber head burette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205323802U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268996A (en) * | 2016-09-29 | 2017-01-04 | 黎柏麟 | One brood lac dropper |
| CN110133176A (en) * | 2019-06-06 | 2019-08-16 | 何耀 | A kind of method of rapid titration analysis |
| CN114414749A (en) * | 2021-12-14 | 2022-04-29 | 江苏佳信检测技术有限公司 | Method for detecting bacterial count in liquid food and extraction equipment thereof |
-
2016
- 2016-01-20 CN CN201620053741.0U patent/CN205323802U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268996A (en) * | 2016-09-29 | 2017-01-04 | 黎柏麟 | One brood lac dropper |
| CN106268996B (en) * | 2016-09-29 | 2019-01-08 | 广西南岜仔科技有限公司 | A kind of rubber head dropper |
| CN110133176A (en) * | 2019-06-06 | 2019-08-16 | 何耀 | A kind of method of rapid titration analysis |
| CN114414749A (en) * | 2021-12-14 | 2022-04-29 | 江苏佳信检测技术有限公司 | Method for detecting bacterial count in liquid food and extraction equipment thereof |
| 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 |
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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: 20160622 Termination date: 20180120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |