CN207745888U - A kind of medicine detection liquid-transfering device - Google Patents

Abstract

The utility model proposes a kind of medical detection liquid-transfering devices, including cavity shell, suction pipe, elastic film, push rod and control mechanism；The accommodating chamber for accommodating liquid is equipped in the cavity shell, being equipped with push rod at the top of cavity shell imports and exports, and cavity shell bottom is equipped with suction pipe mouth；The elastic film edge is fixedly connected with cavity shell inner wall, and the liquid of air chamber and lower section for accommodating chamber to be divided into top retains chamber；Chamber is retained above the suction pipe with liquid through suction pipe mouth to be connected to；It imports and exports through push rod and is fixedly connected in the middle part of elastic film in the push rod lower end；The control mechanism includes fulcrum, operating lever and motion bar, the operating lever movable end in operating lever and the spacing between motion bar is operating lever total length 0.6~0.9 times.The liquid-transfering device is simple in structure, reasonable design, easy operation, and pipetting processes, convenient for observation, liquid relief amount is controllable.

Description

A kind of medicine detection liquid-transfering device

Technical field

The utility model is related to pharmaceutical test detection technique fields, are filled with liquid relief more particularly, to a kind of medical detection It sets.

Background technology

In medical test, pipettor be transplanted in a kind of test tube that serum is had serum from one another added with The invisible spectro tool of reagent.Pipettor is common low capacity liquid transfer device, is widely used in hospital, public universities and colleges Laboratory, with precision height, it is quick detachable the features such as.But common pipettor generally uses same set on the market at present Meter, i.e., control button is placed in the top of pipettor, takes wait for the test tube of liquid relief on the other hand, and four finger grippings of another hand live pipettor Device body, thumb directly press control button, to carry out the absorption of liquid, then decontrol the test tube for waiting for liquid relief again, take by liquid relief Test tube, loosening control button, carrying out the merging of liquid.On the one hand this mode needs to take twice puts down test tube, and The control button of pipettor cannot loosen in pipetting processes, and it is cumbersome that there are pipettings, and the easy damaged in collision of test tube, liquid easily drips The problems such as, it is on the other hand then the observation for being not easy to liquid and pipetting process, and the control of the liquid amount of pipetting also is inconvenient.

Utility model content

Purpose of the utility model is to solve above-mentioned technical problems, propose a kind of medical detection liquid-transfering device, should Liquid-transfering device is simple in structure, reasonable design, easy operation, and pipetting processes, convenient for observation, liquid relief amount is controllable.

What the technical solution of the utility model was realized in：

A kind of medicine detection liquid-transfering device, including cavity shell, suction pipe, elastic film, push rod and control mechanism；The chamber The accommodating chamber for accommodating liquid is equipped in shell, being equipped with push rod at the top of cavity shell imports and exports, and cavity shell bottom is equipped with suction pipe mouth； The elastic film is in half elliptic structure, and edge is fixedly connected with cavity shell inner wall, for accommodating chamber to be divided into top Air chamber and lower section liquid retain chamber；Chamber is retained above the suction pipe with liquid through suction pipe mouth to be connected to；Under the push rod End is fixedly connected in the middle part of push rod inlet and outlet and elastic film；The control mechanism includes being arranged in cavity shell side wall top edge Fulcrum, the operating lever being rotatablely connected at the top of one end and push rod, and the motion bar with the rotation connection of fulcrum movable end, the work The movable end of lever is rotatablely connected with operating lever, and the operating lever movable end in operating lever and the spacing between motion bar are operation 0.6~0.9 times of bar total length.

Specifically, the push rod inlet and outlet are equipped with a circle rubber ring, and rubber ring inner wall is uniformly provided with several annulars Groove, the push rod is equipped at least two bulge loops to match with annular groove, and the spacing between bulge loop and rubber ring are high It spends consistent.

Further, the cavity shell bottom is in inverted umbrella shape, is located among cavity shell bottom at the top of the suction pipe mouth.

Further, further include several holders, all holders are uniformly around suction pipe mouth lower end in divergent shape setting.

Further, further include holder fagging, be fixedly connected with cavity shell side wall above the holder fagging, holder support Plate lower end inside is then fixedly connected with the movable end of holder.

Preferably, the lower end of the suction pipe is set as reverse frustoconic.

Preferably, the cavity shell is glass cavity shell.

Above-mentioned technical proposal is used, the beneficial effects of the utility model are：

The utility model has the advantages of simple structure, reasonable design, by similar lever construction (also with the control machine of manual pressure water tank Structure is similar) control mechanism drive moving up and down for push rod, pressed up and down without thumb, can be convenient for observing when picking and placeing liquid Liquid picks and places situation；And the embossed card of its push rod inlet and outlet rubber ring and push rod connects connection type, then push rod can be made to maintain spy Liquid relief is convenient in fixed position；In addition, the setting of its elastic film, then be arranged with reference to existing rubber dropper, can push away It is moved up and down under the drive of bar, widens or reduce the volume that liquid retains chamber, and then draw or release liquid；Finally, this practicality It is novel to be also provided with holder, the holder can make its using when be placed on test tube or flask etc., without lifting manually, make its behaviour Make simpler, also can effectively prevent damaged in collision such as test tube etc..

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, other drawings may also be obtained based on these drawings.

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is enlarged drawing at A；

Fig. 3 is supporting structure schematic diagram.

Wherein：1- cavity shells, 11- push rods inlet and outlet, 12- suction pipe mouths, 13- air chambers, 14- liquid retention chamber, 2- suction pipes, 3- elastic films, 4- push rods, 41- bulge loops, 5- fulcrums, 51- operating levers, 52- motion bars, 6- rubber rings, 61- annular grooves, 7- Holder, 8- holder faggings.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts The every other embodiment obtained, shall fall within the protection scope of the present invention.

The purpose of the present embodiment is to provide for a kind of medical detection liquid-transfering device, and the liquid-transfering device is simple in structure, if Meter is reasonable, has the advantages that liquid relief amount is controllable, pipetting processes are easy to operate and observation is convenient.

Specifically, as shown in Figures 1 to 3, which includes cavity shell 1, suction pipe 2, elastic film 3, push rod 4 and control Mechanism processed.The whole cavity shell 1 is in tubular glass structure, and roof has certain thickness, and is equipped in the middle part of roof Push rod inlet and outlet 11, bottom wall is in inverted umbrella-shaped structure, and the suction pipe mouth 12 extended downwardly is equipped in the middle part of bottom wall, and cavity shell It is then the accommodating chamber for accommodating liquid in 1.The elastic film 3 is in half elliptic structure, and edge is fixed with cavity shell inner wall and connected It connects, middle part freely extends downwards, and the liquid of air chamber 13 and lower section for accommodating chamber to be divided into top retains chamber 14, bullet Property the setting that is fixedly connected with cavity shell of film 3, be to realize that liquid retains 14 volume of chamber using the elastic force of of elastic film 3 itself Increase and decrease, avoid the problem of it finds with cavity shell to rub so as to cause sealing loosely, and reduce the setting of sealing element, Reduce cost；2 top of the suction pipe is retained chamber 14 with liquid through suction pipe mouth 13 and is connected to, to pass in and out for liquid, 2 lower end of suction pipe Then it is set as reverse frustoconic structure；4 lower end of the push rod is fixedly connected through push rod inlet and outlet 11 with 3 middle part of elastic film, when When push rod 4 moves up and down, 3 middle part of elastic film can be driven to move up and down, and then change liquid and retain the volume of chamber 14, and then make Liquid disengaging liquid retention is strong by 14, achievees the purpose that liquid relief.

The control mechanism includes the fulcrum 5 being arranged in 1 side wall top edge of cavity shell, and one end connects with 4 top rotation of push rod The operating lever 51 connect, and the motion bar 52 with the rotation connection of fulcrum movable end, movable end and the operating lever of the motion bar turn Dynamic connection, and the operating lever movable end in operating lever and the spacing between motion bar is operating lever total length 0.6~0.9 times. On the one hand the setting is the principle for borrowing lever construction, to reach labour-saving purpose, while avoiding the need for thumb or more pressing and pushing away It is unfavorable for the problem of observation picks and places liquid case caused by bar, another aspect is then but the rate that moves up and down of push rod becomes smaller, Make it pick and place amount of liquid to be more easily controlled.

And lead to the things such as inconvenient initiation instrument collision without long-time press device top when in order to make its liquid relief Therefore and liquid is avoided to omit, the present embodiment is also equipped with a circle rubber ring 6 in push rod inlet and outlet 11, and in rubber ring Wall is uniformly provided with several annular grooves 61, and the push rod 4 is equipped at least two bulge loops 41 to match with annular groove, and convex Spacing between ring is consistent with rubber ring height.The setting is equivalent to is provided with several bayonets to push rod 4, is drawn without pressing When push rod 4, groove is blocked with bulge loop, so make liquid retain 14 volume of chamber fix, in liquid will not drip, be convenient for liquid The control of the body amount of pipetting.

In addition, more convenient when in order to make to pick and place liquid, the present embodiment is also provided with holder 7 and branch in 1 lower part of cavity shell Frame fagging 8, the holder is arranged uniformly around 12 lower end of suction pipe mouth in divergent shape, and 8 top of the holder fagging and 1 side of cavity shell Wall is fixedly connected, and holder fagging lower end inside is then fixedly connected with the movable end of holder 7, carry out liquid pick and place when, only need by Entire liquid-transfering device is placed on the devices such as test tube or conical flask, without propping up manually, you can realizes that liquid picks and places.

In use, the present embodiment device is placed into above test tube, holder is made to be contacted with test tube mouth, and due to suction pipe and examination Between nozzle, there is certain interval between holder and holder, therefore can realize picking and placeing for liquid；Then pass through the work of pressing operation bar Moved end makes push rod translate up, and then drives and moved up in the middle part of elastic film, widens liquid and retains cavity volume, reduces its interior pressure, Its liquid can be made due to the structure design of annular groove and bulge loop between rubber ring and push rod by so that liquid is entered liquid retention chamber Push rod is blocked after body uptake meet demand, at this point, putting down operating lever, that is, completes the absorption of liquid.Then, device is taken Go out, is placed into above another test tube, so that holder is contacted with test tube mouth, light platform operating lever movable end makes push rod translate downwards, in turn It drives and is moved down in the middle part of elastic film, reduce liquid and retain cavity volume, the liquid in it is made to move down, completion entirely pipettes process.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection domain within.

Claims (6)

1. a kind of medicine detection liquid-transfering device, which is characterized in that including cavity shell (1), suction pipe (2), elastic film (3), push away Bar (4) and control mechanism；The accommodating chamber for accommodating liquid is equipped in the cavity shell (1), be equipped at the top of cavity shell push rod into It exports (11), cavity shell bottom is equipped with suction pipe mouth (12)；The elastic film (3) is in half elliptic structure, and edge and chamber shell Internal wall is fixedly connected, and the liquid of air chamber (13) and lower section for accommodating chamber to be divided into top retains chamber (14)；It is described Chamber (14) is retained above suction pipe (2) with liquid through suction pipe mouth (12) to be connected to；It is imported and exported through push rod push rod (4) lower end (11) it is fixedly connected with elastic film (3) middle part；The control mechanism includes fulcrum of the setting in cavity shell (1) side wall top edge (5), one end and the operating lever (51) being rotatablely connected at the top of push rod (4), and the motion bar with the rotation connection of fulcrum movable end (52), the movable end of the motion bar and operating lever are rotatablely connected, and the operating lever movable end in operating lever and between motion bar Spacing be 0.6~0.9 times of operating lever total length；The push rod inlet and outlet (11) are equipped with a circle rubber ring (6), and rubber Circle inner wall is uniformly provided with several annular grooves (61), and the push rod (4) matches equipped at least two with annular groove convex Ring (41), and the spacing between bulge loop is consistent with rubber ring height.

2. a kind of medical detection liquid-transfering device according to claim 1, which is characterized in that cavity shell (1) bottom In inverted umbrella shape, it is located among cavity shell bottom at the top of the suction pipe mouth (12).

3. a kind of medical detection liquid-transfering device according to claim 2, which is characterized in that further include several holders (7), All holders are arranged uniformly around suction pipe mouth (12) lower end in divergent shape.

4. a kind of medical detection liquid-transfering device according to claim 3, which is characterized in that further include holder fagging (8), It is fixedly connected with cavity shell (1) side wall above the holder fagging (8), the then activity with holder (7) of holder fagging lower end inside End is fixedly connected.

5. a kind of medical detection liquid-transfering device according to claim 1 or 4, which is characterized in that under the suction pipe (2) End is set as reverse frustoconic.

6. a kind of medical detection liquid-transfering device according to claim 5, which is characterized in that the cavity shell (1) is glass Glass cavity shell.