CN204448044U - The extraction of liquid and injection device in a kind of closed environment - Google Patents
The extraction of liquid and injection device in a kind of closed environment Download PDFInfo
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- CN204448044U CN204448044U CN201520025617.9U CN201520025617U CN204448044U CN 204448044 U CN204448044 U CN 204448044U CN 201520025617 U CN201520025617 U CN 201520025617U CN 204448044 U CN204448044 U CN 204448044U
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Abstract
The utility model relates to extraction and the injection device of liquid in a kind of closed environment, comprise stream switch, liquid flowing tube, catheter, sleeve pipe and can carry out the liquid extraction device of Liquid extracting and injection to experiment container, the bottom of this liquid extraction device has connector; The first piston be located in housing that stream switch comprises housing and can rotate, the top of housing is connected with connector, and the bottom of housing and sidepiece are connected with catheter and liquid flowing tube respectively; First piston has the first passage, the second channel that are connected with catheter, liquid flowing tube for connector, and under first passage makes connector and catheter connected state, second channel is inaccessible, and under second channel makes connector and liquid flowing tube connected state, first passage is inaccessible.By rotate first piston can control first passage, second channel unimpeded or inaccessible, thus complete extraction and the injection of liquid.The utility model structure is simple, easy to operate, for the Liquid extracting in closed environment and injection are provided convenience.
Description
Technical field
The utility model relates to experiment equipment technical field, specifically refers to extraction and the injection device of liquid in a kind of closed environment.
Background technology
In a lot of fields of real work, often can run into and need to pipette the situation of liquid to another closed environment from a closed environment.Such as, for avoiding the loss of volatile liquid reactant, needing, on the experiment reaction units such as all kinds of flasks, the refluxes such as condenser pipe are installed, reverting to liquid state by gaseous state after making volatile reactive material condensation, thus reflux and collect reactant liquor; And such reaction usually needs to carry out under the atmosphere protection of inert gas.
In experimentation, sometimes need in airtight reaction vessel, add one or more liquid experimental raw, sometimes in order to situations such as observing response process or intermediate products, between needing in the reaction, in process, from closed container, extract part reactant liquor; The end product of some reaction also needs to transfer in airtight reservoir under airtight condition.At some medical domain, for the characteristic requirements of institute's sample drawn, also there is the situation needing to be transferred in confined conditions by the liquid sample of extraction in corresponding closed container.But, in general chemical reaction process, reacting liquid temperature in reaction unit is higher, and the vapour concentration of volatile liquid is comparatively large, according to removing condenser pipe to get the operation of liquid or fluid injection, then will certainly cause the leakage of a large amount of volatile components, cause the loss of reactive material, also can pollute the environment of lab space in some cases, the safety of experimenter is threatened, simultaneously because whole reaction unit temperature is higher, be also inconvenient to operate; More cannot ensure that the whole liquid process of moving of Liquid extracting or injection is carried out at closed environment.
Therefore, provide extraction and the injection device of liquid in a kind of closed environment, seem particularly necessary.
Utility model content
Technical problem to be solved in the utility model is the present situation for prior art, the extraction of liquid and injection device in the closed environment providing a kind of structure simple, easy to operate, the arrangement achieves the noiseless pipetting in course of reaction, avoid the trouble of the dismounting refittings such as condenser pipe.
The utility model solves the problems of the technologies described above adopted technical scheme: the extraction of liquid and injection device in a kind of closed environment, it is characterized in that: comprise stream switch, liquid flowing tube, catheter, sleeve pipe and can carry out the liquid extraction device of Liquid extracting and injection to experiment container, the bottom of this liquid extraction device has connector;
The first piston be located in housing that described stream switch comprises housing and can rotate, the top of described housing is connected with connector, and the bottom of described housing and sidepiece are connected with catheter and liquid flowing tube respectively;
Described liquid flowing tube comprises the transverse tube being connected to housing sidepiece and the vertical tube being vertically connected to this transverse tube end, and described sleeve pipe is arranged at the junction of transverse tube and vertical tube and longitudinally arranges;
Described first piston has the first passage, the second channel that are connected with catheter, liquid flowing tube for connector, and under described first passage makes connector and catheter connected state, second channel obturation; Under described second channel makes connector and liquid flowing tube connected state, first passage is inaccessible.
In such scheme, described liquid extraction device comprises shell and is arranged at the core bar that also can move up and down in shell, and this core bar lower end is provided with the second piston matched with the inwall of described shell, and described connector is opened in outer casing underpart.During use, move up and down core bar, can make to produce negative pressure or malleation in shell, thus realize absorption or the discharge of liquid.
For the ease of rotating first piston, and control first passage, the obturation of second channel or connection as required, the housing side of described stream switch has port, and described first piston is laterally inserted in housing from above-mentioned port.
In order to meet the actual needs of more experiments, the extraction of described liquid and injection device also comprise the liquid-transfering needle being connected to liquid flowing tube and catheter lower end, and the lower end of described liquid flowing tube and catheter is respectively arranged with the adapter for mating different model liquid-transfering needle.
Preferably, the shell of described liquid extraction device has graduation apparatus, so that accurate control is taken out, the volume of fluid injection body.
Compared with prior art, the utility model provides and is a kind ofly applicable to Liquid extracting in closed environment and injection device, and this device realizes its function mainly through stream switch and liquid extraction device; Need in container during imbitition, rotate first piston and the two ends of second channel are communicated with connector and liquid flowing tube respectively, now, first passage is inaccessible, the reactant liquor in container can be drawn in liquid extraction device; Again rotating first piston makes the two ends of first passage be communicated with connector and catheter respectively, now, second channel is inaccessible, the reactant liquor in liquid extraction device can be discharged, complete the Liquid extracting process in closed environment, reverse operating said process when injecting liquid in container; Structure of the present utility model is simple, easy to operate, for the extraction of liquid in the closed environment of laboratory and injection are provided convenience.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the state diagram that in the utility model embodiment, liquid extraction device is connected with catheter;
Fig. 3 is the state diagram that in the utility model embodiment, liquid extraction device is connected with liquid flowing tube;
Fig. 4 be the device of the utility model embodiment and laboratory containers with the use of structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
As shown in figures 1-4, in the closed environment of the present embodiment, the extraction of liquid and injection device, comprise liquid extraction device 1, stream switch 2, liquid flowing tube 3, catheter 4, liquid-transfering needle 5 and sleeve pipe 6.Liquid extraction device 1 in the present embodiment is similar in prior art the syringe not having syringe needle, concrete, liquid extraction device 1 comprises shell 11 and is arranged at the core bar 12 that also can move up and down in shell 11, this core bar 12 lower end is provided with the second piston 13 matched with the inwall of shell 11, the bottom of shell 11 offers connector 111, the surface of shell 11 also has graduation apparatus 112, so that accurate control is taken out, the volume of fluid injection body.Stream switch 2 comprises housing 21 and first piston 22, and the side of housing 21 has port 211, and the transverse direction that first piston 22 can rotate from port 211 place is inserted in housing 21.The top of housing 21 is connected with connector 111, and the bottom of housing 21 and sidepiece are connected with catheter 4 and liquid flowing tube 3 respectively.First piston 22 has the first passage 221, the second channel 222 that are connected with catheter 4, liquid flowing tube 3 for connector 111, and first passage 221 makes connector 111 with under catheter 4 connected state, second channel 222 is inaccessible; Second channel 222 makes connector 111 with under liquid flowing tube 3 connected state, and first passage 221 is inaccessible.Liquid-transfering needle 5 is connected to the lower end of liquid flowing tube 3 and catheter 4, and in order to meet the actual needs of more experiments, the lower end of liquid flowing tube 3 and catheter 4 is respectively arranged with the adapter 100 for mating different model liquid-transfering needle 5.Liquid flowing tube 3 comprises the transverse tube 31 being connected to housing sidepiece and the vertical tube 32 being vertically connected to this transverse tube 31 end, sleeve pipe 6 is arranged at transverse tube 31 and also longitudinally arranges with the junction of vertical tube 32, sleeve pipe 6 is one-body molded with liquid flowing tube 3, frosted design is, to ensure air-tightness inside the upper and lower port of sleeve pipe 6; The lower end of sleeve pipe 6 can be used for connecting the heating containers such as flask, and the upper end of sleeve pipe 6 can be used for connecting condenser pipe etc.
Liquid flowing tube 3 in the present embodiment also can need to change position according to actual experiment with catheter 4.
The present embodiment is described for the experimental provision shown in Fig. 4, also can the Liquid extracting of the present embodiment and injection device and other experiment equipment be assembled according to actual needs in certain experimentation.When needs under closed environment by reactant liquor in container 10 during sucking-off, first rotate the position shown in first piston 22 to Fig. 3, now, second channel 222 is unimpeded thus connector 111 is connected with liquid flowing tube 3, and first passage 221 is inaccessible, upwards pull core bar 12 makes to produce negative pressure in shell 11, thus reactant liquor is sucked in shell 11, after absorption, again rotate the position shown in first piston 22 to Fig. 2, now, first passage 221 is unimpeded thus connector 111 is connected with catheter 4, and second channel 222 is inaccessible, reactant liquor in shell 11 is expelled in the holder 20 be communicated with catheter 4 by downward promotion core bar 12.
When certain solution is injected container 10 by needs under closed environment, first rotate the position shown in first piston 22 to Fig. 2, now, first passage 221 is unimpeded thus connector 111 is connected with catheter 4, and second channel 222 is inaccessible, upwards pull core bar 12 makes to produce negative pressure in shell 11, thus reactant liquor is sucked in shell 11 in holder 20, after absorption, again rotate the position shown in first piston 22 to Fig. 3, now, second channel 222 is unimpeded thus connector 111 is connected with liquid flowing tube 3, and first passage 221 is inaccessible, liquid in shell 11 is injected the container 10 be communicated with liquid flowing tube 3 by downward promotion core bar 12.
The structure of the present embodiment is simple, easy to operate, achieves extraction and the injection of liquid in closed environment, for experimenter provides a great convenience.
Claims (5)
1. the extraction of liquid and injection device in a closed environment, it is characterized in that: comprise stream switch, liquid flowing tube, catheter, sleeve pipe and can carry out the liquid extraction device of Liquid extracting and injection to experiment container, the bottom of this liquid extraction device has connector;
The first piston be located in housing that described stream switch comprises housing and can rotate, the top of described housing is connected with connector, and the bottom of described housing and sidepiece are connected with catheter and liquid flowing tube respectively;
Described liquid flowing tube comprises the transverse tube being connected to housing sidepiece and the vertical tube being vertically connected to this transverse tube end, and described sleeve pipe is arranged at the junction of transverse tube and vertical tube and longitudinally arranges;
Described first piston has the first passage, the second channel that are connected with catheter, liquid flowing tube for connector, and under described first passage makes connector and catheter connected state, second channel obturation; Under described second channel makes connector and liquid flowing tube connected state, first passage is inaccessible.
2. the extraction of liquid and injection device in closed environment according to claim 1, it is characterized in that: described liquid extraction device comprises shell and is arranged at the core bar that also can move up and down in shell, this core bar lower end is provided with the second piston matched with the inwall of described shell, and described connector is opened in outer casing underpart.
3. the extraction of liquid and injection device in closed environment according to claim 2, is characterized in that: the housing side of described stream switch has port, and described first piston is laterally inserted in housing from above-mentioned port.
4. the extraction of liquid and injection device in the closed environment according to claim 1 or 2 or 3, it is characterized in that: also comprise the liquid-transfering needle being connected to liquid flowing tube and catheter lower end, the lower end of described liquid flowing tube and catheter is respectively arranged with the adapter for mating different model liquid-transfering needle.
5. in the closed environment according to claim 1 or 2 or 3, the extraction of liquid and injection device, is characterized in that: the shell of described liquid extraction device has graduation apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520025617.9U CN204448044U (en) | 2015-01-14 | 2015-01-14 | The extraction of liquid and injection device in a kind of closed environment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520025617.9U CN204448044U (en) | 2015-01-14 | 2015-01-14 | The extraction of liquid and injection device in a kind of closed environment |
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| CN204448044U true CN204448044U (en) | 2015-07-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132332A (en) * | 2017-05-19 | 2017-09-05 | 国网天津市电力公司 | A kind of experimental provision of field test electric power tower Uniformity of zinc coat |
| CN109141976A (en) * | 2018-09-06 | 2019-01-04 | 中国原子能科学研究院 | A kind of radioactive liquid sample sampler and sampling method |
| CN109894174A (en) * | 2019-01-29 | 2019-06-18 | 厦门大学 | A kind of portable mono particle pipettor and single particle capture method |
| CN110455582A (en) * | 2019-07-12 | 2019-11-15 | 中国神华煤制油化工有限公司 | Liquid suction device, liquid suction method and liquid detecting component |
-
2015
- 2015-01-14 CN CN201520025617.9U patent/CN204448044U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132332A (en) * | 2017-05-19 | 2017-09-05 | 国网天津市电力公司 | A kind of experimental provision of field test electric power tower Uniformity of zinc coat |
| CN107132332B (en) * | 2017-05-19 | 2020-09-25 | 国网天津市电力公司 | Experimental device for on-spot inspection electric power iron tower galvanizing coat homogeneity |
| CN109141976A (en) * | 2018-09-06 | 2019-01-04 | 中国原子能科学研究院 | A kind of radioactive liquid sample sampler and sampling method |
| CN109894174A (en) * | 2019-01-29 | 2019-06-18 | 厦门大学 | A kind of portable mono particle pipettor and single particle capture method |
| CN110455582A (en) * | 2019-07-12 | 2019-11-15 | 中国神华煤制油化工有限公司 | Liquid suction device, liquid suction method and liquid detecting component |
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