CN203170352U - Novel transfer pipette - Google Patents
Novel transfer pipette Download PDFInfo
- Publication number
- CN203170352U CN203170352U CN 201320181597 CN201320181597U CN203170352U CN 203170352 U CN203170352 U CN 203170352U CN 201320181597 CN201320181597 CN 201320181597 CN 201320181597 U CN201320181597 U CN 201320181597U CN 203170352 U CN203170352 U CN 203170352U
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- horizontal tube
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Abstract
The utility model discloses a novel transfer pipette which sequentially comprises a rubber pipette bulb, a vertical pipe, a liquid storage chamber and a suction pipe from top to bottom, wherein a horizontal pipe of which one end is open and the other end is closed is arranged in the upper part of the vertical pipe; the horizontal pipe is tightly connected with a piston through the open end; a vertical through hole I is formed in the horizontal pipe; a vertical through hole II of which the diameter is matched with the diameter of the vertical through hole I is formed in the piston; when the vertical through hole I corresponds to the vertical through hole II, the piston is arranged at the end of the horizontal pipe, and a certain gap is formed between the piston and the closed end of the horizontal pipe; the width of the gap is larger than the diameter of the vertical through hole II. The position of the piston is adjusted through the handle, so that the air quantity flowing into the pipe is controlled, the volume of the sucked liquid is adjusted, the control is convenient and accurate, more liquid can be accommodated in the liquid storage chamber, and the novel transfer pipette has the buffer effect of preventing the liquid from ejecting out.
Description
Technical field
The utility model relates to a kind of novel pipette.
Background technology
Pipette is the common instrument in the laboratories, field such as chemistry, chemical industry, medicine, environmental protection.Pipette of the prior art mostly is the straight shape glass tube of up/down perforation, use rubber pipette bulb during use and insert pipette upper end mouth of pipe imbitition, because the effect of pipe inside and outside differential pressure, liquid is entered in the pipe by pipette lower end sharp-crested, when the intraluminal fluid scale of construction is enough, take away rubber pipette bulb and block the mouth of pipe with finger again, slowly reduce liquid level to the amount that needs by moveable finger, move to again in the container of adding.The problem that prior art exists is: it is wayward to get liquid measure, move away to when adopting finger to block at rubber pipette bulb, liquid descends and causes quantity not sufficient rapidly easily, perhaps realizes drawing the purpose of quantitative liquid by the control of moveable finger, technical ability to the operator requires height, is not easy to grasp; When getting hypervolia, make liquid suck the pollution that rubber pipette bulb causes rubber pipette bulb and liquid easily; In addition, it is less to get liquid measure, when the amount of liquid of required movement more for a long time, need repeatedly sampling, trouble.
Summary of the invention
The utility model is at the proposition of above problem, and develops a kind of simple in structure, convenient and practical novel pipette.
The technical solution of the utility model is:
A kind of novel pipette comprises rubber pipette bulb, vertical body, fluid reservoir and suction pipe from top to bottom successively; Described vertical body top is built-in with the horizontal tube of an end opening, end sealing, and this horizontal tube closely is connected with piston by its openend; Offer vertical through hole I on the described horizontal tube; Described piston is provided with the suitable vertical through hole II of diameter and vertical through hole I diameter; When described vertical through hole I with vertically through hole II position is at once, described piston places end and the horizontal tube blind end in the horizontal tube to have certain interval; Described gap width is greater than vertical through hole II diameter;
Further, described fluid reservoir is spherical, and this fluid reservoir diameter is greater than vertical pipe diameter;
Further, the outer wall of described vertical body, fluid reservoir and suction pipe is provided with graduation mark;
Further, described piston is rubber stopper, and an end is provided with handle.
Owing to adopted technique scheme, the novel pipette that the utility model provides, by being built-in with an end opening on vertical body top, the horizontal tube of one end sealing, this horizontal tube closely is connected with piston by its openend, before imbitition, piston is installed in the horizontal tube like this and guarantees that the vertical through hole I position that vertical through hole II that piston is provided with and horizontal tube offer is corresponding, the suction pipe lower end is inserted into the container that to get liquid, operation rubber pipette bulb imbitition, after absorption finishes, utilize vertical body, the graduation mark that the outer wall of fluid reservoir and suction pipe is provided with is observed the liquid volume of current absorption, adjust the air capacity of piston position and then control inflow body by handle, realization is to the adjustment of the liquid volume of absorption, control is accurately convenient, technical ability to the operator requires technical ability not high, having solved pipette of the prior art adopts finger control to get liquid measure when imbitition, downward liquid flow speed is observed the pipette scale rapidly and simultaneously, operation inconvenience, the problem of inefficiency; Increased more receiving fluids of fluid reservoir, and has the cushioning effect that prevents the liquid ejection, can avoid pipette of the prior art the phenomenon that liquid sprays when rubber pipette bulb overexerts, not occur owing to there being fluid reservoir to cause, the utility model is simple in structure, convenient and practical, not only be convenient to produce, and cost is very cheap is suitable for extensive popularization.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1, rubber pipette bulb, 2, vertical through hole I, 3, vertical through hole II, 4, the gap, 5, horizontal tube, 6, vertical body, 7, fluid reservoir, 8, suction pipe, 9, graduation mark, 10, handle, 11, piston.
The specific embodiment
A kind of novel pipette as shown in Figure 1 comprises rubber pipette bulb 1, vertical body 6, fluid reservoir 7 and suction pipe 8 from top to bottom successively; Described vertical body 6 tops are built-in with the horizontal tube 5 of an end opening, end sealing, and this horizontal tube 5 closely is connected with piston 11 by its openend; Offer vertical through hole I 2 on the described horizontal tube 5; Described piston 11 is provided with the suitable vertical through hole II 3 of diameter and vertical through hole I 2 diameters; When described vertical through hole I 2 with vertically through hole II 3 positions are at once, described piston 11 places end and horizontal tube 5 blind ends in the horizontal tube 5 to have certain interval 4; Described gap 4 width are greater than vertical through hole II 3 diameters; Further, described fluid reservoir 7 is spherical, and these fluid reservoir 7 diameters are greater than vertical body 6 diameters; The outer wall of described vertical body 6, fluid reservoir 7 and suction pipe 8 is provided with graduation mark 9; Described piston 11 is rubber stopper, and an end is provided with handle 10.
The novel pipette that the utility model provides, by being built-in with an end opening on vertical body top, the horizontal tube of one end sealing, this horizontal tube closely is connected with piston by its openend, before imbitition, piston is installed in the horizontal tube like this and guarantees that the vertical through hole I position that vertical through hole II that piston is provided with and horizontal tube offer is corresponding, the suction pipe lower end is inserted into the container that to get liquid, operation rubber pipette bulb imbitition, after absorption finishes, utilize vertical body, the graduation mark that the outer wall of fluid reservoir and suction pipe is provided with is observed the liquid volume of current absorption, adjust the air capacity of piston position and then control inflow body by handle, realization is to the adjustment of the liquid volume of absorption, control is accurately convenient, technical ability to the operator requires technical ability not high, having solved pipette of the prior art adopts finger control to get liquid measure when imbitition, downward liquid flow speed is observed the pipette scale rapidly and simultaneously, operation inconvenience, the problem of inefficiency, when confirming that by graduation mark current liquid volume meets demand, mobile pipette is to needing to add in the container of liquid, piston places the interior end of horizontal tube and the gap width between the horizontal tube blind end greater than vertical through hole II diameter, and vertically through hole I diameter is convenient to adjust piston position like this with vertically through hole II diameter is suitable; Increased more receiving fluids of fluid reservoir, and has the cushioning effect that prevents the liquid ejection, can avoid pipette of the prior art the phenomenon that liquid sprays when rubber pipette bulb overexerts, not occur owing to there being fluid reservoir to cause, the utility model is simple in structure, convenient and practical, not only be convenient to produce, and cost is very cheap is suitable for extensive popularization.
The above; it only is the preferable specific embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to replacement or change according to the technical solution of the utility model and inventive concept thereof, all should be encompassed within the protection domain of the present utility model.
Claims (4)
1. a novel pipette is characterized in that: comprise rubber pipette bulb (1), vertical body (6), fluid reservoir (7) and suction pipe (8) from top to bottom successively; Described vertical body (6) top is built-in with the horizontal tube (5) of an end opening, end sealing, and this horizontal tube (5) closely is connected with piston (11) by its openend; Offer vertical through hole I (2) on the described horizontal tube (5); Described piston (11) is provided with the suitable vertical through hole II (3) of diameter and vertical through hole I (2) diameter; When described vertical through hole I (2) with vertically through hole II (3) position is at once, described piston (11) places end and horizontal tube (5) blind end in the horizontal tube (5) to have certain interval (4); Described gap (4) width is greater than vertical through hole II (3) diameter.
2. a kind of novel pipette according to claim 1 is characterized in that described fluid reservoir (7) for spherical, and this fluid reservoir (7) diameter is greater than vertical body (6) diameter.
3. a kind of novel pipette according to claim 1 is characterized in that the outer wall of described vertical body (6), fluid reservoir (7) and suction pipe (8) is provided with graduation mark (9).
4. a kind of novel pipette according to claim 1 is characterized in that described piston (11) is rubber stopper, and an end is provided with handle (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320181597 CN203170352U (en) | 2013-04-11 | 2013-04-11 | Novel transfer pipette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320181597 CN203170352U (en) | 2013-04-11 | 2013-04-11 | Novel transfer pipette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203170352U true CN203170352U (en) | 2013-09-04 |
Family
ID=49067107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320181597 Expired - Fee Related CN203170352U (en) | 2013-04-11 | 2013-04-11 | Novel transfer pipette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203170352U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289766A (en) * | 2015-10-02 | 2016-02-03 | 大连理工大学 | Undamaged operation device for underwater nonpolar organic liquid drops |
| CN115629011A (en) * | 2022-12-21 | 2023-01-20 | 中铁九局集团第五工程有限公司 | Device for measuring apparent density of light particle material and using method thereof |
-
2013
- 2013-04-11 CN CN 201320181597 patent/CN203170352U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289766A (en) * | 2015-10-02 | 2016-02-03 | 大连理工大学 | Undamaged operation device for underwater nonpolar organic liquid drops |
| CN115629011A (en) * | 2022-12-21 | 2023-01-20 | 中铁九局集团第五工程有限公司 | Device for measuring apparent density of light particle material and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20140411 |