CN206046070U - Prevent liquid refluence's liquid-transfering device with rifle head - Google Patents
Prevent liquid refluence's liquid-transfering device with rifle head Download PDFInfo
- Publication number
- CN206046070U CN206046070U CN201621088180.4U CN201621088180U CN206046070U CN 206046070 U CN206046070 U CN 206046070U CN 201621088180 U CN201621088180 U CN 201621088180U CN 206046070 U CN206046070 U CN 206046070U
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- China
- Prior art keywords
- fixedly connected
- syringe needle
- fixed
- rubber
- liquid
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- 239000007788 liquid Substances 0.000 title claims abstract description 48
- 230000008676 import Effects 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 230000013011 mating Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 6
- 238000012546 transfer Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a prevent rifle head for pipettor of liquid refluence, including the syringe needle, fixed cover has been cup jointed to the one end of syringe needle, the one end fixedly connected with barrel of syringe needle, the import fixed connection in the one end of syringe needle and the barrel, the outside fixedly connected with of import is located the fixed plate on the barrel inner wall, the fixed surface of fixed plate is connected with the rubber layer, the surface joint on rubber layer has the rubber retaining ring that is located import one side, the fixed column has been cup jointed at the middle part of rubber retaining ring, the outside fixedly connected with sealing washer of fixed column, the other end fixedly connected with retaining ring of. This prevent rifle head for pipettor of liquid refluence, through setting up the spring, the barrel makes the spring shrink under the effect of vacuum pressure, and liquid passes through the syringe needle and gets into in the barrel, and when liquid shifts the completion, vacuum pressure disappears, and the spring gets back to initial position under the elastic action, seals the barrel, has reached the effect that prevents the liquid syringe needle of flowing backward.
Description
Technical field
This utility model is related to pipettor technical field, specially a kind of pipettor pipette tips for preventing liquid from flowing backwards.
Background technology
Pipettor is a kind of low capacity liquid transfer device, is had extensively in the laboratory of big-and-middle universities and colleges and scientific research institutions
Application, be also widely used in environmental protection, occupational health, public health, hospital and animals and plants postgraduate, pipettor mainly has
Pipettor body, pull bar and pipette tips etc. are constituted.
The sealing of existing pipettor gun head is poor, because sealing is poor, result in pipettor gun head and liquid easily occurs
The phenomenon that body flows backwards occurs, therefore can cause to test the data for obtaining and error occur so that the result of experiment is inaccurate.
Utility model content
(1) technical problem for solving
For the deficiencies in the prior art, this utility model provides a kind of pipettor pipette tips for preventing liquid from flowing backwards, tool
The standby advantage for preventing liquid from flowing backwards, solves the problems, such as that existing pipettor gun head liquid easily occurs and flows backwards phenomenon.
(2) technical scheme
To realize the above-mentioned purpose for preventing liquid from flowing backwards, this utility model provides following technical scheme：One kind prevents liquid
The pipettor pipette tips of refluence, including syringe needle, one end of the syringe needle are socketed with fixed cover, and one end of the syringe needle is fixedly connected
The one end for having gun barrel, the syringe needle is fixedly connected with the import in gun barrel, is fixedly connected with positioned at gun barrel on the outside of the import
Fixed plate on inwall, the surface of the fixed plate are fixedly connected with rubber layer, the surface of the rubber layer be connected be located at into
The rubber back-up ring of mouth side, is socketed with fixed column, is fixedly connected with close on the outside of the fixed column in the middle part of the rubber back-up ring
Seal, the other end of the fixed column are fixedly connected with fixed back-up ring, and the fixed back-up ring is fixedly connected with positioned at gun barrel inwall
On fix bar, the two ends on the inside of the rubber back-up ring and fixed back-up ring have been fixedly connected with contiguous block, between the contiguous block
Spring is fixedly connected with, the one end inside the gun barrel away from import is fixedly connected with outlet, and one end of the outlet is fixed and connected
It is connected to connecting tube.
Preferably, the quantity of the fixed plate is two, and two fixed plates are respectively fixedly connected with gun barrel by bolt
The both sides of wall.
Preferably, the surface of the rubber back-up ring is fixedly connected with latch, and the latch is shaped as triangle.
Preferably, the surface of the rubber layer offers draw-in groove, the shape of the draw-in groove and the mating shapes of latch.
Preferably, the rubber back-up ring is shaped as trapezoidal, the shape of the fixed plate and the shape phase of rubber back-up ring
Match somebody with somebody.
Preferably, the quantity of the fixed column is two, and two fixed columns are respectively fixedly connected with the two ends for being connected on gun barrel inwall.
Preferably, the sealing ring is rubber.
(3) beneficial effect
Compared with prior art, this utility model provide it is a kind of prevent liquid flow backwards pipettor pipette tips, possess with
Lower beneficial effect：
1st, this prevents the pipettor pipette tips that liquid flows backwards, and by arranging spring, gun barrel is made in the presence of vacuum pressure
Spring contraction, liquid are entered in gun barrel by syringe needle, and when liquid transfer is completed, vacuum pressure disappears, and spring is in elastic reaction
Under return to initial position, by barrel closure, reached the effect for preventing liquid from backflowing out of syringe needle.
2nd, this prevents the pipettor pipette tips that liquid flows backwards, and by arranging draw-in groove and latch, latch is connected in draw-in groove, is blocked
Tooth and draw-in groove are fitted close, and have reached the effect of sealing gun barrel, so as to reach the effect for preventing liquid from flowing backwards.
Description of the drawings
Fig. 1 is this utility model structural representation；
Fig. 2 is this utility model draw-in groove attachment structure schematic diagram.
In figure：1 syringe needle, 2 fixed covers, 3 gun barrels, 4 fixed plates, 5 bolts, 6 imports, 7 rubber layers, 71 draw-in grooves, 8 rubber stops
Back-up ring, 13 fix bars, 14 contiguous blocks, 15 outlets, 16 connections are fixed in circle, 81 latches, 9 fixed columns, 10 sealing rings, 11 springs, 12
Pipe.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only this utility model a part of embodiment, rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
Fig. 1, a kind of pipettor pipette tips for preventing liquid from flowing backwards, including syringe needle 1 are referred to, one end of syringe needle 1 is socketed with
Fixed cover 2, one end of syringe needle 1 are fixedly connected with gun barrel 3, and one end of syringe needle 1 is fixedly connected with the import 6 in gun barrel 3, import 6
Outside be fixedly connected with the fixed plate 4 on 3 inwall of gun barrel, the quantity of fixed plate 4 is two, and two fixed plates 4 pass through
Bolt 5 is respectively fixedly connected with the both sides of 3 inwall of gun barrel, by arranging fixed plate 4, it is ensured that the sealing of gun barrel 3, is reached
The effect for preventing liquid from flowing backwards, the surface of fixed plate 4 are fixedly connected with rubber layer 7, by arranging rubber layer 7, increase fixation
The friction of plate 4 and rubber back-up ring 8, improves sealing therebetween, and the surface of rubber layer 7 is connected with positioned at 6 side of import
Rubber back-up ring 8, being shaped as rubber back-up ring 8 be trapezoidal, the shape of fixed plate 4 and the mating shapes of rubber back-up ring 8, rubber stop
The middle part of circle 8 is socketed with fixed column 9, by arranging fixed column 9, it is ensured that spring 11 will not occur deformation in angle, improve
The practicality of the pipettor pipette tips of liquid refluence, the outside of fixed column 9 is prevented to be fixedly connected with sealing ring 10, sealing ring 10 is
Rubber, by arranging rubber seal 10, improves the sealing between rubber back-up ring 8 and fixed column 9, prevents liquid from flowing backwards,
The other end of fixed column 9 is fixedly connected with fixed back-up ring 12, and fixed back-up ring 12 is fixedly connected with the fixation on 3 inwall of gun barrel
Bar 13, the quantity of fix bar 13 is two, and two fix bars 13 are respectively fixedly connected with the two ends for being connected on 3 inwall of gun barrel, solid by arranging
Fixed pole 13, it is ensured that fixed back-up ring 12 will not tilt phenomenon, the two ends on the inside of rubber back-up ring 8 and fixed back-up ring 12 are fixedly connected with
There is contiguous block 14, between contiguous block 14, be fixedly connected with spring 11, by arranging spring 11, effect of the gun barrel 3 in vacuum pressure
Under, shrink spring 11, liquid is entered in gun barrel 3 by syringe needle 1, and when liquid transfer is completed, vacuum pressure disappears, spring 11
Initial position is returned under elastic reaction, gun barrel 3 is sealed, reached the effect for preventing liquid from backflowing out of syringe needle 1, in gun barrel 3
Portion is fixedly connected with outlet 15 away from one end of import 6, and the one end for exporting 15 is fixedly connected with connecting tube 16.
Refer to Fig. 2, a kind of pipettor pipette tips for preventing liquid from flowing backwards, the surface of rubber back-up ring 8 is fixedly connected with card
Tooth 81, latch 71 are shaped as triangle, and the surface of rubber layer 7 offers draw-in groove 71, the shape of draw-in groove 71 and the shape of latch 81
Shape matches, and by arranging draw-in groove 71 and latch 81, latch 81 is connected in draw-in groove 71, and latch 81 and draw-in groove 71 are fitted close,
The effect of sealing gun barrel 3 is reached, so as to reach the effect for preventing liquid from flowing backwards.
When in use, this prevents the pipettor pipette tips that liquid flows backwards, gun barrel 3 from making spring in the presence of vacuum pressure
11 shrink, and liquid is entered in gun barrel 3 by syringe needle 1, and when liquid transfer is completed, vacuum pressure disappears, and spring 11 is in elasticity work
Initial position is returned to under, gun barrel 3 is sealed, prevent liquid from occurring to flow backwards phenomenon.
In sum, this prevents the pipettor pipette tips that liquid flows backwards, and by arranging spring 11, gun barrel 3 is in vacuum pressure
In the presence of, shrink spring 11, liquid is entered in gun barrel 3 by syringe needle 1, and when liquid transfer is completed, vacuum pressure disappears,
Spring 11 returns to initial position under elastic reaction, and gun barrel 3 is sealed, and has reached the effect for preventing liquid from backflowing out of syringe needle 1.
This prevents the pipettor pipette tips that liquid flows backwards, and by arranging draw-in groove 71 and latch 81, latch 81 is connected to draw-in groove
In 71, latch 81 and draw-in groove 71 are fitted close, and have reached the effect of sealing gun barrel 3, so as to reach the work for preventing liquid from flowing backwards
With.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation are made a distinction with another entity or operation, and are not necessarily required or implied these entities or deposit between operating
In any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that a series of process, method, article or equipment including key elements not only will including those
Element, but also including other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
Be appreciated that these embodiments can be carried out various changes in the case of without departing from principle of the present utility model and spirit, repair
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of pipettor pipette tips for preventing liquid from flowing backwards, including syringe needle (1), one end of the syringe needle (1) is socketed with fixation
Set (2), it is characterised in that：One end of the syringe needle (1) is fixedly connected with gun barrel (3), one end of the syringe needle (1) and gun barrel
(3) import (6) in is fixedly connected, and the fixed plate on gun barrel (3) inwall is fixedly connected with the outside of the import (6)
(4), the surface of the fixed plate (4) is fixedly connected with rubber layer (7), and the surface of the rubber layer (7) is connected with positioned at import
(6) the rubber back-up ring (8) of side, is socketed with fixed column (9), the outside of the fixed column (9) in the middle part of the rubber back-up ring (8)
Sealing ring (10) is fixedly connected with, the other end of the fixed column (9) is fixedly connected with fixed back-up ring (12), the fixed back-up ring
(12) fix bar (13) on gun barrel (3) inwall is fixedly connected with, on the inside of the rubber back-up ring (8) and fixed back-up ring (12)
Two ends be fixedly connected with contiguous block (14), spring (11), the gun barrel (3) are fixedly connected between the contiguous block (14)
Internal one end away from import (6) is fixedly connected with outlet (15), and one end of the outlet (15) is fixedly connected with connecting tube
(16)。
2. it is according to claim 1 it is a kind of prevent liquid flow backwards pipettor pipette tips, it is characterised in that：The fixed plate
(4) quantity is two, and two fixed plates (4) are respectively fixedly connected with the both sides of gun barrel (3) inwall by bolt (5).
3. it is according to claim 1 it is a kind of prevent liquid flow backwards pipettor pipette tips, it is characterised in that：The rubber stop
The surface of circle (8) is fixedly connected with latch (81), and the latch (81) is shaped as triangle.
4. it is according to claim 1 it is a kind of prevent liquid flow backwards pipettor pipette tips, it is characterised in that：The rubber layer
(7) surface offers draw-in groove (71), the shape of the draw-in groove (71) and the mating shapes of latch (81).
5. it is according to claim 1 it is a kind of prevent liquid flow backwards pipettor pipette tips, it is characterised in that：The rubber stop
Being shaped as circle (8) is trapezoidal, the shape of the fixed plate (4) and the mating shapes of rubber back-up ring (8).
6. it is according to claim 1 it is a kind of prevent liquid flow backwards pipettor pipette tips, it is characterised in that：The fix bar
(13) quantity is two, and two fix bars (13) are respectively fixedly connected with the two ends for being connected on gun barrel (3) inwall.
7. it is according to claim 1 it is a kind of prevent liquid flow backwards pipettor pipette tips, it is characterised in that：The sealing ring
(10) it is rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621088180.4U CN206046070U (en) | 2016-09-28 | 2016-09-28 | Prevent liquid refluence's liquid-transfering device with rifle head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621088180.4U CN206046070U (en) | 2016-09-28 | 2016-09-28 | Prevent liquid refluence's liquid-transfering device with rifle head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206046070U true CN206046070U (en) | 2017-03-29 |
Family
ID=58367673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621088180.4U Expired - Fee Related CN206046070U (en) | 2016-09-28 | 2016-09-28 | Prevent liquid refluence's liquid-transfering device with rifle head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206046070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330097A (en) * | 2018-03-16 | 2018-07-27 | 苏杰 | A kind of cell culture, detection method |
-
2016
- 2016-09-28 CN CN201621088180.4U patent/CN206046070U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330097A (en) * | 2018-03-16 | 2018-07-27 | 苏杰 | A kind of cell culture, detection method |
| CN108330097B (en) * | 2018-03-16 | 2020-10-23 | 天信和(苏州)生物科技有限公司 | Cell culture and detection method |
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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: 20170329 Termination date: 20170928 |