CN207056594U - A kind of pipette - Google Patents

Abstract

Pipette provided by the utility model, including：Fluid reservoir, to accommodate the fluid sample for needing to shift；Pressure device, air-tightness are connected on the fluid reservoir, are acted on down by pressure and suck or extrude the fluid reservoir by the fluid sample well；Liquid guiding tube, detachable and adjustable length save land and are connected on the fluid reservoir, and the one end of the liquid guiding tube away from the fluid reservoir is removably provided with the bending section away from the fluid reservoir direction.The adjustable in length of liquid guiding tube is set, and is easy to liquid guiding tube being directly deep into inside bottle and is directly contacted with fluid sample；Or in transfer liquid sample, liquid guiding tube is directly deep into bottle, avoid fluid sample and be dropped on the bottleneck of bottle or the inwall of ullage, influence the progress of experiment.Meanwhile by setting bending section, liquid guiding tube can be made to be adjusted according to the shape of bottle, liquid guiding tube is entered in bottle has forniciform position, has more preferable flexibility.

Description

A kind of pipette

Technical field

It the utility model is related to liquid transfer techniques field, and in particular to liquid pipette is used in one kind experiment.

Background technology

In an experiment, the extraction for liquid transfer and injection be a key link.

For example, very sticky sample (such as cheese, Yoghourt, below with sticky cheese can be met during detection Exemplified by), duration is weighed using traditional syringe without tip, and still, in the injection process of sample, sample is easy to be bonded at Mao Shi liposuctions bottle, the inwall of volumetric flask, bottleneck etc. are unfavorable for the place of next one-step hydrolysis, before sample is hydrolyzed, I Sample and hydrochloric acid are sufficiently mixed, if sample is bonded at the top part of inwall or bottleneck portion, there is two kinds of solutions Method, first：Again weigh, but detection time can be wasted；Second, it is rinsed with hydrochloric acid, until sample and hydrochloric acid can It is sufficiently mixed, but can so causes the waste of reagent, also detecting step below can be given to increase trouble or even cause test data Inaccuracy causes test failure.

The problem of same, may also appear in the experiment shifted in the fields such as chemical industry to fluid sample, it is therefore desirable to research and develop Necessary liquid transfer device, in order to carry out accurately extracting and shifting to fluid sample.

Utility model content

Therefore, the technical problems to be solved in the utility model is to overcome of the prior art using traditional syringe pair Fluid sample is carried out in transfer process, it is difficult to which fluid sample is accurately transferred to defect in the containers such as volumetric flask.

Therefore, the utility model provides a kind of pipette, including：Fluid reservoir, to accommodate the fluid sample for needing to shift； Pressure device, air-tightness are connected on the fluid reservoir, are acted on down by pressure and the fluid sample is sucked or extruded well The fluid reservoir；Liquid guiding tube, detachable and adjustable length save land and are connected on the fluid reservoir, and the liquid guiding tube is away from described One end of fluid reservoir is removably provided with the bending section away from the fluid reservoir direction.

The liquid guiding tube includes：Straight tube, detachable and adjustable length save land and are connected on the fluid reservoir, the straight tube To go deep into the inside of bottle；The bending section with radian, the straight tube is detachably connected to away from the fluid reservoir One end on, the fluid sample can be sucked in the fluid reservoir or is ejected in the bottle by the bending section.

The straight tube includes some son being connected to each other pipes.

Screw thread is formed on the sub- pipe, is connected as a single entity between some sub- pipes by screw thread.

The bending section is in arc-shaped, and is removably connected by screw thread between the bending section and the straight tube Connect.

The fluid reservoir includes the first fluid reservoir and the second fluid reservoir that are connected to each other, first fluid reservoir and described the The position that two fluid reservoirs are in contact forms the screw thread pair to mate with each other.

The pressure device includes：Propeller, it can be arranged on to relatively described fluid reservoir motion the inside of the fluid reservoir；With And rubber stopper, be connected to one end that the propeller enters the fluid reservoir, and air-tightness it is good be squeezed in the fluid reservoir Inwall.

The pressure device is compression pump, and the compression pump sealing is connected to the fluid reservoir different from the straight tube well One end.

Sebific duct is provided between the compression pump and the fluid reservoir.

Technical solutions of the utility model, have the following advantages that：

1. pipette provided by the utility model, including：Fluid reservoir, to accommodate the fluid sample for needing to shift；Pressure Device, air-tightness are connected on the fluid reservoir well, are acted on down by pressure described in the fluid sample is sucked or extruded Fluid reservoir；Liquid guiding tube, detachable and adjustable length save land and are connected on the fluid reservoir, and the liquid guiding tube is away from the liquid storage One end of tank is removably provided with the bending section away from the fluid reservoir direction.

The adjustable in length of liquid guiding tube is set, and is easy to liquid guiding tube being directly deep into inside bottle and is directly connect with fluid sample Touch；Or in transfer liquid sample, liquid guiding tube is directly deep into bottle, avoid the bottle that fluid sample is dropped in bottle On the inwall of mouth or ullage, the progress of experiment is influenceed.

Meanwhile by setting bending section, liquid guiding tube can be made to be adjusted according to the shape of bottle, liquid guiding tube is entered bottle There is forniciform position in body, there is more preferable flexibility.

2. pipette provided by the utility model, the straight tube includes some son being connected to each other pipes.Pass through sub- pipe Be connected to each other, the length of whole straight tube can be adjusted, add the using flexible of whole pipette.

3. pipette provided by the utility model, the fluid reservoir includes the first fluid reservoir and the second liquid storage being connected to each other Tank, the position that first fluid reservoir is in contact with second fluid reservoir form the screw thread pair to mate with each other.

First fluid reservoir and the second fluid reservoir can be opened each other, during liquid transfer is carried out, can make the two phase To opening, then liquid is put into, such set-up mode improves the flexibility that liquid is put into.

Brief description of the drawings

, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation of the pipette provided by the utility model；

Description of reference numerals：

1- fluid reservoirs；The fluid reservoirs of 11- first；The fluid reservoirs of 12- second；2- liquid guiding tubes；21- straight tubes；211- pipes；22- is curved Pars convoluta；3- propellers；

Embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality Novel protected scope.

, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other Conflict can is not formed to be combined with each other.

Embodiment 1

The present embodiment provides a kind of pipette, including：Fluid reservoir 1, to accommodate the fluid sample for needing to shift；Pressure Device, air-tightness are connected on the fluid reservoir 1 well, are acted on down by pressure described in the fluid sample is sucked or extruded Fluid reservoir 1；Liquid guiding tube 2, detachable and adjustable length save land and are connected on the fluid reservoir 1, and the liquid guiding tube 2 is away from described One end of fluid reservoir 1 is removably provided with the bending section 22 away from the direction of fluid reservoir 1.

The adjustable in length of liquid guiding tube 2 is set, and is easy to liquid guiding tube 2 being directly deep into direct with fluid sample inside bottle Contact；Or in transfer liquid sample, liquid guiding tube 2 is directly deep into bottle, avoid fluid sample and be dropped in bottle Bottleneck or ullage inwall on, influence experiment progress.

Meanwhile by setting bending section 22, liquid guiding tube 2 can be made to be adjusted according to the shape of bottle, enter liquid guiding tube 2 Entering has forniciform position in bottle, have more preferable flexibility.

In the present embodiment, the liquid guiding tube 2 includes：Straight tube 21, detachable and adjustable length save land and are connected to the liquid storage On tank 1, the straight tube 21 is going deep into the inside of bottle；The straight tube 21 includes some sub- pipes 211 being connected to each other, institute State and screw thread is formed on sub- pipe 211, be connected as a single entity between some sub- pipes 211 by screw thread, by sub- pipe 211 each other Connection, the length of whole straight tube 21 can be adjusted, add the using flexible of whole pipette.

The liquid guiding tube 2 also includes simultaneously：The bending section 22 with radian, it is detachably connected to the straight tube 21 On one end away from the fluid reservoir 1, the fluid sample can be sucked in the fluid reservoir 1 or sprayed by the bending section 22 Go out into the bottle.The bending section 22 is in arc-shaped, and can by screw thread between the bending section 22 and the straight tube 21 Releasably it is attached.

As modification, the bending section 22 could alternatively be linear pattern, and now it has necessarily still between straight tube 21 Angle.

In the present embodiment, the fluid reservoir 1 includes the first fluid reservoir 11 and the second fluid reservoir 12 that are connected to each other, and described the The position that one fluid reservoir 11 is in contact with second fluid reservoir 12 forms the screw thread pair to mate with each other.

First fluid reservoir 11 and the second fluid reservoir 12 can be opened each other, during liquid transfer is carried out, can make two Person is relative to open, and is then put into liquid, such set-up mode improves the flexibility that liquid is put into.

In the present embodiment, the pressure device includes：Propeller 3, the relatively described motion of fluid reservoir 1 it can be arranged on the storage The inside of flow container 1；And rubber stopper, it is connected to one end that the propeller 3 enters the fluid reservoir 1, and air-tightness is good It is squeezed in the inwall of the fluid reservoir 1.

External force, which is acted on propeller 3, makes propeller 3 carry out piston movement, and propeller 3 drives rubber stopper, makes fluid sample Suction or outflow fluid reservoir 1.

As modification, the pressure device is compression pump, and it is different that the compression pump sealing is connected to the fluid reservoir 1 well In one end of the straight tube 21.Sebific duct is provided between the compression pump and the fluid reservoir 1.In use, pressure is started Pump, compression pump produce negative pressure or malleation inside fluid reservoir 1 so that fluid sample sucks or outflow fluid reservoir 1.

Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or Among the protection domain that variation is created still in the utility model.

Claims (9)

1. A kind of 1. pipette, it is characterised in that including：

   Fluid reservoir (1), to accommodate the fluid sample for needing to shift；

   Pressure device, air-tightness are connected on the fluid reservoir (1), are acted on down by pressure and suck the fluid sample well Or extrude the fluid reservoir (1)；

   Liquid guiding tube (2), detachable and adjustable length save land and are connected on the fluid reservoir (1), and the liquid guiding tube (2) is away from institute The one end for stating fluid reservoir (1) is removably provided with the bending section (22) away from the fluid reservoir (1) direction.
2. 2. pipette according to claim 1, it is characterised in that the liquid guiding tube (2) includes：

   Straight tube (21), detachable and adjustable length save land and are connected on the fluid reservoir (1), and the straight tube (21) is to deeply The inside of bottle；

   The bending section (22) with radian, it is detachably connected to one of the straight tube (21) away from the fluid reservoir (1) On end, the fluid sample can be sucked in the fluid reservoir (1) or is ejected in the bottle by the bending section (22).
3. 3. pipette according to claim 2, it is characterised in that what the straight tube (21) was connected to each other including some Son pipe (211).
4. 4. pipette according to claim 3, it is characterised in that form screw thread, some institutes on the sub- pipe (211) State and be connected as a single entity by screw thread between sub- pipe (211).
5. 5. pipette according to claim 2, it is characterised in that the bending section (22) is in arc-shaped, and the bending Removably it is attached by screw thread between portion (22) and the straight tube (21).
6. 6. according to any described pipettes of claim 1-5, it is characterised in that the fluid reservoir (1) includes what is be connected to each other First fluid reservoir (11) and the second fluid reservoir (12), first fluid reservoir (11) are in contact with second fluid reservoir (12) Position forms the screw thread pair to mate with each other.
7. 7. pipette according to claim 6, it is characterised in that the pressure device includes：

   Propeller (3), it can be arranged on to relatively described fluid reservoir (1) motion the inside of the fluid reservoir (1)；

   And

   Rubber stopper, is connected to one end that the propeller (3) enters the fluid reservoir (1), and air-tightness it is good be squeezed in institute State the inwall of fluid reservoir (1).
8. 8. pipette according to claim 2, it is characterised in that the pressure device is compression pump, the pressure pump seal Property is connected to the one end of the fluid reservoir (1) different from the straight tube (21) well.
9. 9. pipette according to claim 8, it is characterised in that be provided between the compression pump and the fluid reservoir (1) Sebific duct.